| X | ||||||||||
- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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| X | ||||||||||
- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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| X | ||||||||||
- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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| X | ||||||||||
- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
|
| X | ||||||||||
- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
|
| X | ||||||||||
- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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| X | ||||||||||
- Definition Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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| X | ||||||||||
- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated), (5) Smaller Reporting Accelerated Filer or (6) Smaller Reporting Company and Large Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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| X | ||||||||||
- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicate if company meets the shell company criteria: a company with no or nominal operations, and with no or nominal assets or assets consisting solely of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicates that the company is a smaller reporting company with both a public float and revenues of less than $75 million. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
|
| X | ||||||||||
- Definition Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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| X | ||||||||||
- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Definition Restructuring And Other, Mainline No definition available.
|
| X | ||||||||||
- Definition Maintenance costs incurred and directly related to services rendered by an entity during the reporting period. Includes the cost of inspections and repairs, materials and routine maintenance costs for all aircraft and engines. No definition available.
|
| X | ||||||||||
- Definition Expenses incurred related to the lease of aircraft from outside third parties that are used in the entity's business operations. No definition available.
|
| X | ||||||||||
- Definition Costs incurred related to air services provided by third-party transportation companies, including regional affiliates. No definition available.
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| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Direct costs incurred at airports in which the entity conducts flight operations. The costs primarily consist of fees paid to the airport authority for takeoff and landing, gate space and facilities, allocations of common space such as security and other terminal costs and fuel storage facilities. No definition available.
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The aggregate total amount of expenses directly related to the marketing or selling of products or services. No definition available.
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Net income | $ 1,412 | $ 1,282 | $ 2,584 |
| Other comprehensive income (loss), net of tax: | |||
| Pension, retiree medical and other postretirement benefits | (117) | (70) | (358) |
| Investments | (3) | (1) | 7 |
| Total other comprehensive loss, net of tax | (120) | (71) | (351) |
| Total comprehensive income | 1,292 | 1,211 | 2,233 |
| American Airlines, Inc. [Member] | |||
| Net income | 1,658 | 1,285 | 2,689 |
| Other comprehensive income (loss), net of tax: | |||
| Pension, retiree medical and other postretirement benefits | (116) | (68) | (357) |
| Investments | (3) | (1) | 6 |
| Total other comprehensive loss, net of tax | (119) | (69) | (351) |
| Total comprehensive income | $ 1,539 | $ 1,216 | $ 2,338 |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Definition The gross amount of long-lived, depreciable ground property and equipment. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Net carrying amount, as of the balance sheet date, of expendable merchandise, goods, commodities, or supplies to be used primarily in air transport of passengers and freight. No definition available.
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying amount, at the balance sheet date, of deposits made to the manufacturer for new flight equipment still under construction. May include capitalized interest. No definition available.
|
| X | ||||||||||
- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The gross amount of long-lived, depreciable flight assets used in the entity's principle business operations, including owned aircraft and on capital lease, as well as capitalized improvements. No definition available.
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Definition Amount of noncurrent assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The current cash, cash equivalents and investments that are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes current cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Accumulated amortization of intangibles | $ 663 | $ 622 |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized (in shares) | 1,750,000,000 | 1,750,000,000 |
| Common stock, shares outstanding (in shares) | 460,610,870 | 475,507,887 |
| American Airlines, Inc. [Member] | ||
| Accumulated amortization of intangibles | $ 663 | $ 622 |
| Common stock, par value (in dollars per share) | $ 1.00 | $ 1 |
| Common stock, shares authorized (in shares) | 1,000 | 1,000 |
| Common stock, shares issued (in shares) | 1,000 | 1,000 |
| Common stock, shares outstanding (in shares) | 1,000 | 1,000 |
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Amortization of debt discount (premium) and leased assets. No definition available.
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| X | ||||||||||
- Definition Mainline And Express Depreciation And Amortization No definition available.
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| X | ||||||||||
- Definition Proceeds From Sale Of Property Plant And Equipment and Sale Leaseback Transactions No definition available.
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| X | ||||||||||
- Definition Special Charges Non Cash No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in cash. Cash is the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Includes effect from exchange rate changes. No definition available.
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| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in receivables to be collected from other entities that could exert significant influence over the reporting entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in current assets classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in obligation for pension benefits. Includes, but is not limited to, defined benefit or defined contribution plans. Excludes other postretirement benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The net cash inflow or outflow for the increase (decrease) associated with investments (not to include restricted cash) that are pledged or subject to withdrawal restrictions. No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash (inflow) outflow from investing activities classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of noncash expense (reversal of expense) for pension and other postretirement benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of cash inflow from the sale of investments classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations. No definition available.
|
| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cash | $ 275 | $ 295 | $ 322 | ||||||||
| Restricted cash included in restricted cash and short-term investments | 11 | 103 | 113 | ||||||||
| Total cash and restricted cash | 286 | [1] | 398 | [1] | 435 | [1] | $ 507 | ||||
| American Airlines, Inc. [Member] | |||||||||||
| Cash | 265 | 287 | 310 | ||||||||
| Restricted cash included in restricted cash and short-term investments | 11 | 103 | 113 | ||||||||
| Total cash and restricted cash | $ 276 | [2] | $ 390 | [2] | $ 423 | [2] | $ 481 | ||||
| |||||||||||
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
|
Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions |
Total |
American Airlines, Inc. [Member] |
Common Stock [Member] |
Common Stock [Member]
American Airlines, Inc. [Member]
|
Additional Paid-in Capital [Member] |
Additional Paid-in Capital [Member]
American Airlines, Inc. [Member]
|
Accumulated Other Comprehensive Loss [Member] |
Accumulated Other Comprehensive Loss [Member]
American Airlines, Inc. [Member]
|
Retained Earnings (Deficit) [Member] |
Retained Earnings (Deficit) [Member]
American Airlines, Inc. [Member]
|
|---|---|---|---|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2015 | $ 5,635 | $ 9,698 | $ 6 | $ 0 | $ 11,591 | $ 16,521 | $ (4,732) | $ (4,831) | $ (1,230) | $ (1,992) |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
| Net income | 2,584 | 2,689 | 2,584 | 2,689 | ||||||
| Other comprehensive loss | (351) | (351) | (351) | (351) | ||||||
| Cash tax withholding on shares issued | (56) | (56) | ||||||||
| Purchase and retirement of AAG common stock | (4,416) | (1) | (4,415) | |||||||
| Dividends declared on AAG common stock | (224) | (224) | ||||||||
| Settlement of single-dip unsecured claims held in distributed claims reserve | 3 | 3 | ||||||||
| Share-based compensation expense | 100 | 100 | 100 | 100 | ||||||
| Intercompany equity transfer | 3 | 3 | ||||||||
| Ending Balance at Dec. 31, 2016 | (284) | 8,580 | 5 | 0 | 7,223 | 16,624 | (5,083) | (5,182) | (2,429) | (2,862) |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
| Net income | 1,282 | 1,285 | 1,282 | 1,285 | ||||||
| Other comprehensive loss | (71) | (69) | (71) | (69) | ||||||
| Cash tax withholding on shares issued | (51) | (51) | ||||||||
| Purchase and retirement of AAG common stock | (1,563) | (1,563) | ||||||||
| Dividends declared on AAG common stock | (198) | (198) | ||||||||
| Settlement of single-dip unsecured claims held in distributed claims reserve | 15 | 15 | ||||||||
| Share-based compensation expense | 90 | 90 | 90 | 90 | ||||||
| Intercompany equity transfer | 2 | 2 | ||||||||
| Ending Balance at Dec. 31, 2017 | (780) | 9,888 | 5 | 0 | 5,714 | 16,716 | (5,154) | (5,251) | (1,345) | (1,577) |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
| Net income | 1,412 | 1,658 | 1,412 | 1,658 | ||||||
| Other comprehensive loss | (120) | (119) | (120) | (119) | ||||||
| Cash tax withholding on shares issued | (37) | (37) | ||||||||
| Purchase and retirement of AAG common stock | (799) | (799) | ||||||||
| Dividends declared on AAG common stock | (188) | (188) | ||||||||
| Share-based compensation expense | 86 | 86 | 86 | 86 | ||||||
| Ending Balance at Dec. 31, 2018 | $ (169) | $ 11,770 | $ 5 | $ 0 | $ 4,964 | $ 16,802 | $ (5,274) | $ (5,370) | $ 136 | $ 338 |
| X | ||||||||||
- Definition Adjustments to additional paid in capital settlement of single dip unsecured claims. No definition available.
|
| X | ||||||||||
- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. No definition available.
|
| X | ||||||||||
- Definition Amount of other increase (decrease) in additional paid in capital (APIC). No definition available.
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| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Statement of Stockholders' Equity [Abstract] | |||
| Purchase and retirement of common stock (in shares) | 33,953,127 | ||
| Purchase and retirement of common stock (in shares) | 16,606,157 | 33,900,000 | 119,823,621 |
| Dividends declared on common stock (in dollars per share) | $ 0.4 | $ 0.4 | $ 0.4 |
| Issuance of shares of common stock pursuant to employee stock plans (in shares) | 1,709,140 | 2,166,861 | 2,506,067 |
| X | ||||||||||
- Definition Stock Repurchased and Retired During Period, Including Shares Pursuant to Bankruptcy Distribution, Shares No definition available.
|
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Basis of Presentation and Summary of Significant Accounting Policies |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation and Summary of Significant Accounting Policies | Basis of Presentation and Summary of Significant Accounting Policies (a) Basis of Presentation American Airlines Group Inc. (we, us, our and similar terms, or AAG), a Delaware corporation, is a holding company whose primary business activity is the operation of a major network air carrier, providing scheduled air transportation for passengers and cargo through its mainline operating subsidiary, American Airlines, Inc. (American) and its wholly-owned regional airline subsidiaries, Envoy Aviation Group Inc. (Envoy), PSA Airlines, Inc. (PSA) and Piedmont Airlines, Inc. (Piedmont) that operate under the brand American Eagle. On December 9, 2013, a subsidiary of AMR Corporation (AMR) merged with and into US Airways Group, Inc. (US Airways Group), a Delaware corporation, which survived as a wholly-owned subsidiary of AAG, and AAG emerged from Chapter 11 (the Merger). Upon closing of the Merger and emergence from Chapter 11, AMR changed its name to American Airlines Group Inc. All significant intercompany transactions have been eliminated. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The most significant areas of judgment relate to passenger revenue recognition, impairment of goodwill, impairment of long-lived and intangible assets, the loyalty program, as well as pension and retiree medical and other postretirement benefits. (b) Recent Accounting Pronouncements Standards Adopted in 2018 Effective January 1, 2018, we adopted the accounting pronouncements described below. ASU 2014-09: Revenue from Contracts with Customers (Topic 606) (the New Revenue Standard) The New Revenue Standard applies to all companies that enter into contracts with customers to transfer goods or services. We adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. The adoption of the New Revenue Standard impacted our accounting for outstanding mileage credits earned through travel by AAdvantage loyalty program members. There was no change in accounting for sales of mileage credits to co-branded credit card or other partners. Prior to the adoption of the New Revenue Standard, we used the incremental cost method to account for the portion of our loyalty program liability related to mileage credits earned through travel, which were valued based on the estimated incremental cost of carrying one additional passenger. The New Revenue Standard required us to change our policy to the deferred revenue method and apply a relative selling price approach whereby a portion of each passenger ticket sale attributable to mileage credits earned is deferred and recognized in passenger revenue upon future mileage redemption. The value of the earned mileage credits is materially greater under the deferred revenue method than the value attributed to these mileage credits under the incremental cost method. The New Revenue Standard also required certain reclassifications, principally the reclassification of certain ancillary revenues previously classified and reported as other revenue to passenger revenue and as applicable to cargo revenue. Additionally, the New Revenue Standard required a gross presentation on the face of our consolidated statements of operations for certain revenues and expenses that had previously been presented on a net basis. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to our consolidated statements of operations data for 2017 and 2016, respectively, and our consolidated balance sheet as of December 31, 2017 related to the adoption of the New Revenue Standard. ASU 2017-07: Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (the New Retirement Standard) The New Retirement Standard required all components of our net periodic benefit cost (income), with the exception of service cost, previously reported within operating expenses as salaries, wages and benefits, to be reclassified and reported within nonoperating income (expense). The New Retirement Standard was applied retrospectively, which resulted in the recast of each prior reporting period presented. The adoption of the New Retirement Standard had no impact on pre-tax income or net income reported. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to our consolidated statements of operations data for 2017 and 2016, respectively, related to the adoption of the New Retirement Standard. ASU 2016-02: Leases (Topic 842) (the New Lease Standard) The New Lease Standard requires lessees to recognize a lease liability and a right-of-use (ROU) asset on the balance sheet for operating leases. Accounting for finance leases is substantially unchanged. The New Lease Standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. In the fourth quarter of 2018, we elected to early adopt the New Lease Standard as of January 1, 2018 using a modified retrospective transition, with the cumulative-effect adjustment to the opening balance of retained earnings as of the effective date (the effective date method). Under the effective date method, financial results reported in periods prior to 2018 are unchanged. We also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The adoption of the New Lease Standard had a significant impact on our consolidated balance sheet due to the recognition of approximately $10 billion of lease liabilities with corresponding right-of-use assets for operating leases. Additionally, we recognized a $197 million cumulative effect adjustment credit, net of tax, to retained earnings. The adjustment to retained earnings was driven principally by sale-leaseback transactions including the recognition of unamortized deferred aircraft sale-leaseback gains. Prior to the adoption of the New Lease Standard, gains on sale-leaseback transactions were generally deferred and recognized in the income statement over the lease term. Under the New Lease Standard, gains on sale-leaseback transactions (subject to adjustment for off-market terms) are recognized immediately. ASU 2016-01: Financial Instruments - Overall (Subtopic 825-10) This ASU made several modifications to Subtopic 825-10, including the elimination of the available-for-sale classification of equity investments, and it required equity investments with readily determinable fair values to be measured at fair value with changes in fair value recognized in net income. This standard was adopted prospectively as of January 1, 2018 and resulted in a $60 million cumulative effect adjustment credit to retained earnings, net of tax, related to our investment in China Southern Airlines Company Limited (China Southern Airlines), which was previously accounted for under the cost method. ASU 2016-18: Statement of Cash Flows (Topic 230): Restricted Cash This ASU required that the change in the total cash balance, cash at the beginning of the period and cash at the end of the period on the statement of cash flows include restricted cash, and also required companies that report cash and restricted cash separately on the balance sheet to reconcile those amounts to the statement of cash flows. This standard was applied retrospectively, which resulted in the recast of prior reporting periods in the statement of cash flows. For the years ended December 31, 2018, 2017 and 2016, $11 million, $103 million and $113 million, respectively, of restricted cash is included in the total cash and restricted cash balance at the end of the period. A reconciliation of cash and restricted cash reported on our consolidated statements of cash flows to the amounts reported on our consolidated balance sheets is provided in a table below the Consolidated Statements of Cash Flows. Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to our December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
Standards Effective for 2019 Reporting Periods ASU 2018-02: Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income This ASU provides financial statement preparers with an option to reclassify stranded tax effects within accumulated other comprehensive income to retained earnings due to the U.S. federal corporate income tax rate change as a result of the 2017 Tax Act. The amount of the reclassification is the difference between the amount initially charged or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in accumulated other comprehensive income and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate, excluding the effect of any valuation allowance previously charged to income from continuing operations. This standard is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. We will adopt this standard effective January 1, 2019. The adoption of the standard may impact tax amounts stranded in accumulated other comprehensive income related to our pension and retiree medical and other postretirement benefit plans. (c) Short-term Investments Short-term investments are classified as available-for-sale and stated at fair value. Realized gains and losses are recorded in nonoperating expense on our consolidated statements of operations. Unrealized gains and losses are recorded in accumulated other comprehensive loss on our consolidated balance sheets. (d) Restricted Cash and Short-term Investments We have restricted cash and short-term investments related primarily to collateral held to support workers’ compensation obligations. (e) Aircraft Fuel, Spare Parts and Supplies, Net Aircraft fuel is recorded on a first-in, first-out basis. Spare parts and supplies are recorded at average costs less an allowance for obsolescence. These items are expensed when used. (f) Operating Property and Equipment Operating property and equipment is recorded at cost and depreciated or amortized to residual values over the asset’s estimated useful life or the lease term, whichever is less, using the straight-line method. Residual values for aircraft, engines and related rotable parts are generally 5% to 10% of original cost. Costs of major improvements that enhance the usefulness of the asset are capitalized and depreciated or amortized over the estimated useful life of the asset or the lease term, whichever is less. The estimated useful lives for the principal property and equipment classifications are as follows:
We assess impairment on operating property and equipment when events and circumstances indicate that the assets may be impaired. An asset or group of assets is considered impaired when the undiscounted cash flows estimated to be generated by the assets are less than the carrying amount of the assets and the net book value of the assets exceeds their estimated fair value. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell. Total depreciation and amortization expense was $2.4 billion, $2.2 billion and $1.9 billion for the years ended December 31, 2018, 2017 and 2016, respectively. (g) Leases We determine if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, current operating lease liabilities and noncurrent operating lease liabilities in our consolidated balance sheet. Finance leases are included in property and equipment, current maturities of long-term debt and finance leases and long-term debt and finance leases, net of current maturities, in our consolidated balance sheet. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. We use our estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of lease payments. We give consideration to our recent debt issuances as well as publicly available data for instruments with similar characteristics when calculating our incremental borrowing rates. Our lease term includes options to extend the lease when it is reasonably certain that we will exercise that option. Leases with a term of 12 months or less are not recorded on the balance sheet. Our lease agreements do not contain any residual value guarantees. Under certain of our capacity purchase agreements with third-party regional carriers, we do not own the underlying aircraft. However, since we control the marketing, scheduling, ticketing, pricing and seat inventories of these aircraft and therefore control the asset, the aircraft is deemed to be leased for accounting purposes. For these capacity purchase agreements, we account for the lease and non-lease components separately. The lease component consists of the aircraft and the non-lease components consist of services, such as the crew and maintenance. We allocate the consideration in the capacity purchase agreements to the lease and non-lease components using their estimated relative standalone prices. See Note 12(b) for additional information on our capacity purchase agreements. For real estate, we account for the lease and non-lease components as a single lease component. (h) Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are recorded net as noncurrent deferred income taxes. We provide a valuation allowance for our deferred tax assets when it is more likely than not that some portion, or all of our deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. We consider all available positive and negative evidence and make certain assumptions in evaluating the realizability of our deferred tax assets. Many factors are considered that impact our assessment of future profitability, including conditions which are beyond our control, such as the health of the economy, the level and volatility of fuel prices and travel demand. (i) Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets acquired and liabilities assumed. Goodwill is not amortized but assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that goodwill may be impaired. We have one consolidated reporting unit. Goodwill is assessed for impairment by initially performing a qualitative assessment and, if necessary, then comparing the fair value of the reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is less than the carrying value, a second step is performed to determine the implied fair value of goodwill. If the implied fair value of goodwill is lower than its carrying value, an impairment charge equal to the difference is recorded. Based upon our annual assessment, there was no goodwill impairment in 2018. The carrying value of the goodwill on our consolidated balance sheets was $4.1 billion as of December 31, 2018 and 2017. (j) Other Intangibles, Net Intangible assets consist primarily of domestic airport slots, customer relationships, marketing agreements, international slots and route authorities, airport gate leasehold rights and tradenames. Finite-Lived Intangible Assets Finite-lived intangible assets are amortized over their respective estimated useful lives and reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. The following table provides information relating to our amortizable intangible assets as of December 31, 2018 and 2017 (in millions):
Certain domestic airport slots and airport gate leasehold rights are amortized on a straight-line basis over 25 years. The customer relationships and marketing agreements were identified as intangible assets subject to amortization and are amortized on a straight-line basis over approximately nine years and 30 years, respectively. Tradenames are fully amortized. We recorded amortization expense related to these intangible assets of $41 million, $44 million and $76 million for the years ended December 31, 2018, 2017 and 2016, respectively. We expect to record annual amortization expense for these intangible assets as follows (in millions):
Indefinite-Lived Intangible Assets Indefinite-lived intangible assets include certain domestic airport slots at our hubs and international slots and route authorities. Indefinite-lived intangible assets are not amortized but instead are assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that the asset may be impaired. For both periods as of December 31, 2018 and 2017, we had $1.9 billion of indefinite-lived intangible assets on our consolidated balance sheets. In the second quarter of 2018, we recorded a $26 million impairment charge on a Brazil route authority as a result of the U.S.-Brazil open skies agreement, which is included within special items, net on our consolidated statement of operations. Indefinite-lived intangible assets are assessed for impairment by initially performing a qualitative assessment to determine whether we believe it is more likely than not that an asset has been impaired. If we believe impairment has occurred, we then evaluate for impairment by comparing the estimated fair value of assets to the carrying value. An impairment charge is recognized if the asset’s estimated fair value is less than its carrying value. Based upon our annual assessment, there were no additional indefinite-lived intangible asset impairments in 2018 other than the Brazil route authority described above. (k) Revenue Recognition Revenue Effective January 1, 2018, we adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. Refer to “Recent Accounting Pronouncements” in Note 1(b) for the effects of the adoption on our consolidated statements of operations for the years ended December 31, 2017 and 2016 and on our consolidated balance sheet as of December 31, 2017. Under the New Revenue Standard, revenue is recognized upon the transfer of control of promised products or services to our customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. The following are the significant categories comprising our reported operating revenues (in millions):
The following is our total passenger revenue by geographic region (in millions):
We attribute passenger revenue by geographic region based upon the origin and destination of each flight segment. Passenger Revenue We recognize all revenues generated from transportation on American and our regional flights operated under the brand name American Eagle, including associated baggage fees, ticketing change fees and other inflight services, as passenger revenue when transportation is provided. Ticket and other related sales for transportation that has not yet been provided are initially deferred and recorded as air traffic liability on our consolidated balance sheets. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The majority of tickets sold are nonrefundable. A small percentage of tickets, some of which are partially used tickets, expire unused. Due to complex pricing structures, refund and exchange policies, and interline agreements with other airlines, certain amounts are recognized in passenger revenue using estimates regarding both the timing of the revenue recognition and the amount of revenue to be recognized. These estimates are generally based on the analysis of our historical data. We have consistently applied this accounting method to estimate revenue from forfeited tickets at the date of travel. Estimated future refunds and exchanges included in the air traffic liability are routinely evaluated based on subsequent activity to validate the accuracy of our estimates. Any adjustments resulting from periodic evaluations of the estimated air traffic liability are included in passenger revenue during the period in which the evaluations are completed. Various taxes and fees assessed on the sale of tickets to end customers are collected by us as an agent and remitted to taxing authorities. These taxes and fees have been presented on a net basis in the accompanying consolidated statements of operations and recorded as a liability until remitted to the appropriate taxing authority. Loyalty Revenue We currently operate the loyalty program, AAdvantage. This program awards mileage credits to passengers who fly on American, any oneworld airline or other partner airlines, or by using the services of other program participants, such as the Citi and Barclaycard US co-branded credit cards, hotels and car rental companies. Mileage credits can be redeemed for travel on American and other participating partner airlines, as well as other non-air travel awards such as hotels and rental cars. For mileage credits earned by AAdvantage loyalty program members, we apply the deferred revenue method in accordance with the New Revenue Standard. Mileage credits earned through travel For mileage credits earned through travel, we apply a relative selling price approach whereby the total amount collected from each passenger ticket sale is allocated between the air transportation and the mileage credits earned. The portion of each passenger ticket sale attributable to mileage credits earned is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. The estimated selling price of mileage credits is determined using an equivalent ticket value approach, which uses historical data, including award redemption patterns by geographic region and class of service, as well as similar fares as those used to settle award redemptions. The estimated selling price of miles is adjusted for an estimate of miles that will not be redeemed based on historical redemption patterns. Mileage credits sold to co-branded credit cards and other partners We sell mileage credits to participating airline partners and non-airline business partners including our co-branded credit card partners, under contracts with terms extending generally for one to nine years. Consideration received from the sale of mileage credits is variable and payment terms typically are within 30 days subsequent to the month of mileage sale. Sales of mileage credits to non-airline business partners are comprised of two components, transportation and marketing. We allocate the consideration received from these sales of mileage credits based on the relative selling price of each product or service delivered. Our most significant partner agreements are our co-branded credit card agreements with Citi and Barclaycard US that we entered into in 2016. We identified the following revenue elements in these co-branded credit card agreements: the transportation component; and the use of intellectual property, including the American brand and access to loyalty program member lists, which is the predominant element in the agreements, as well as advertising (collectively, the marketing component). Accordingly, we recognize the marketing component in other revenue in the period of the mileage sale following the sales-based royalty method. The transportation component represents the estimated selling price of future travel awards and is determined using the same equivalent ticket value approach described above. The portion of each mileage credit sold attributable to transportation is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. For the portion of our outstanding mileage credits that we estimate will not be redeemed, we recognize the associated value proportionally as the remaining mileage credits are redeemed. Our estimates are based on analysis of historical redemptions. Cargo Revenue Cargo revenue is recognized when we provide the transportation. Other Revenue Other revenue includes revenue associated with our loyalty program, which is comprised principally of the marketing component of mileage sales to co-branded credit card and other partners and other marketing related payments. For the years ended December 31, 2018, 2017 and 2016, loyalty revenue included in other revenue was $2.4 billion, $2.1 billion and $1.9 billion, respectively. The accounting and recognition for the loyalty program marketing services are discussed above in “Loyalty Revenue.” The remaining amounts included within other revenue relate to airport clubs, advertising and vacation-related services. Contract Balances Our significant contract liabilities are comprised of (1) outstanding loyalty program mileage credits that may be redeemed for future travel and other non-air travel awards, reported as loyalty program liability on our consolidated balance sheet and (2) ticket sales for transportation that has not yet been provided, reported as air traffic liability on our consolidated balance sheet.
The balance of the loyalty program liability fluctuates based on seasonal patterns, which impact the volume of mileage credits issued through travel or sold to co-branded credit card and other partners (deferral of revenue) and mileage credits redeemed (recognition of revenue). Changes in loyalty program liability are as follows (in millions):
The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The balance in our air traffic liability also fluctuates with seasonal travel patterns. The contract duration of passenger tickets is one year. Accordingly, any revenue associated with tickets sold for future travel will be recognized within twelve months. For 2018, $3.1 billion of revenue was recognized in passenger revenue that was included in our air traffic liability at December 31, 2017. With respect to contract receivables, reflected as accounts receivable, net on the accompanying consolidated balance sheet, these primarily include receivables for tickets sold to individual passengers through the use of major credit cards. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. (l) Maintenance, Materials and Repairs Maintenance and repair costs for owned and leased flight equipment are charged to operating expense as incurred, except costs incurred for maintenance and repair under flight hour maintenance contract agreements, which are accrued based on contractual terms when an obligation exists. (m) Selling Expenses Selling expenses include credit card fees, commissions, computerized reservations systems fees and advertising. Advertising costs are expensed as incurred. Advertising expense was $128 million, $135 million and $116 million for the years ended December 31, 2018, 2017 and 2016, respectively. (n) Share-based Compensation We account for our share-based compensation expense based on the fair value of the stock award at the time of grant, which is recognized ratably over the vesting period of the stock award. Certain awards have performance conditions that must be achieved prior to vesting and are expensed based on the expected achievement at each reporting period. The fair value of stock appreciation rights is estimated using a Black-Scholes option pricing model. The fair value of restricted stock units is based on the market price of the underlying shares of AAG common stock on the date of grant. See Note 15 for further discussion of share-based compensation. (o) Foreign Currency Gains and Losses Foreign currency gains and losses are recorded as part of other income, net within total nonoperating expense, net in our consolidated statements of operations. Foreign currency losses for 2018 and 2017 were $55 million and $4 million, respectively, and for 2016, foreign currency gains were $1 million. (p) Other Operating Expenses Other operating expenses includes costs associated with ground and cargo handling, crew travel, aircraft food and catering, passenger accommodation, airport security, international navigation fees and certain general and administrative expenses. (q) Regional Expenses Expenses associated with American Eagle operations are classified as regional expenses on our consolidated statements of operations. Regional expenses consist of the following (in millions):
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| Basis of Presentation and Summary of Significant Accounting Policies | Basis of Presentation and Summary of Significant Accounting Policies (a) Basis of Presentation American Airlines, Inc. (American) is a Delaware corporation whose primary business activity is the operation of a major network air carrier. American is the principal wholly-owned subsidiary of American Airlines Group Inc. (AAG), which owns all of American’s outstanding common stock, par value $1.00 per share. On December 9, 2013, a subsidiary of AMR Corporation (AMR) merged with and into US Airways Group, Inc. (US Airways Group), a Delaware corporation, which survived as a wholly-owned subsidiary of AAG, and AAG emerged from Chapter 11 (the Merger). Upon closing of the Merger and emergence from Chapter 11, AMR changed its name to American Airlines Group Inc. All significant intercompany transactions have been eliminated. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The most significant areas of judgment relate to passenger revenue recognition, impairment of goodwill, impairment of long-lived and intangible assets, the loyalty program, as well as pension and retiree medical and other postretirement benefits. (b) Recent Accounting Pronouncements Standards Adopted in 2018 Effective January 1, 2018, American adopted the accounting pronouncements described below. ASU 2014-09: Revenue from Contracts with Customers (Topic 606) (the New Revenue Standard) The New Revenue Standard applies to all companies that enter into contracts with customers to transfer goods or services. American adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. The adoption of the New Revenue Standard impacted American’s accounting for outstanding mileage credits earned through travel by AAdvantage loyalty program members. There was no change in accounting for sales of mileage credits to co-branded credit card or other partners. Prior to the adoption of the New Revenue Standard, American used the incremental cost method to account for the portion of its loyalty program liability related to mileage credits earned through travel, which were valued based on the estimated incremental cost of carrying one additional passenger. The New Revenue Standard required American to change its policy to the deferred revenue method and apply a relative selling price approach whereby a portion of each passenger ticket sale attributable to mileage credits earned is deferred and recognized in passenger revenue upon future mileage redemption. The value of the earned mileage credits is materially greater under the deferred revenue method than the value attributed to these mileage credits under the incremental cost method. The New Revenue Standard also required certain reclassifications, principally the reclassification of certain ancillary revenues previously classified and reported as other revenue to passenger revenue and as applicable to cargo revenue. Additionally, the New Revenue Standard required a gross presentation on the face of American’s consolidated statements of operations for certain revenues and expenses that had previously been presented on a net basis. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to American’s consolidated statements of operations data for 2017 and 2016, respectively, and American’s consolidated balance sheet as of December 31, 2017 related to the adoption of the New Revenue Standard. ASU 2017-07: Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (the New Retirement Standard) The New Retirement Standard required all components of American’s net periodic benefit cost (income), with the exception of service cost, previously reported within operating expenses as salaries, wages and benefits, to be reclassified and reported within nonoperating income (expense). The New Retirement Standard was applied retrospectively, which resulted in the recast of each prior reporting period presented. The adoption of the New Retirement Standard had no impact on pre-tax income or net income reported. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to American’s consolidated statements of operations data for 2017 and 2016, respectively, related to the adoption of the New Retirement Standard. ASU 2016-02: Leases (Topic 842) (the New Lease Standard) The New Lease Standard requires lessees to recognize a lease liability and a right-of-use (ROU) asset on the balance sheet for operating leases. Accounting for finance leases is substantially unchanged. The New Lease Standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. In the fourth quarter of 2018, American elected to early adopt the New Lease Standard as of January 1, 2018 using a modified retrospective transition, with the cumulative-effect adjustment to the opening balance of retained earnings as of the effective date (the effective date method). Under the effective date method, financial results reported in periods prior to 2018 are unchanged. American also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The adoption of the New Lease Standard had a significant impact on American’s consolidated balance sheet due to the recognition of approximately $10 billion of lease liabilities with corresponding right-of-use assets for operating leases. Additionally, American recognized a $197 million cumulative effect adjustment credit, net of tax, to retained earnings. The adjustment to retained earnings was driven principally by sale-leaseback transactions including the recognition of unamortized deferred aircraft sale-leaseback gains. Prior to the adoption of the New Lease Standard, gains on sale-leaseback transactions were generally deferred and recognized in the income statement over the lease term. Under the New Lease Standard, gains on sale-leaseback transactions (subject to adjustment for off-market terms) are recognized immediately. ASU 2016-01: Financial Instruments - Overall (Subtopic 825-10) This ASU made several modifications to Subtopic 825-10, including the elimination of the available-for-sale classification of equity investments, and it required equity investments with readily determinable fair values to be measured at fair value with changes in fair value recognized in net income. This standard was adopted prospectively as of January 1, 2018 and resulted in a $60 million cumulative effect adjustment credit to retained earnings, net of tax, related to American's investment in China Southern Airlines Company Limited (China Southern Airlines), which was previously accounted for under the cost method. ASU 2016-18: Statement of Cash Flows (Topic 230): Restricted Cash This ASU required that the change in the total cash balance, cash at the beginning of the period and cash at the end of the period on the statement of cash flows include restricted cash, and also required companies that report cash and restricted cash separately on the balance sheet to reconcile those amounts to the statement of cash flows. This standard was applied retrospectively, which resulted in the recast of prior reporting periods in the statement of cash flows. For the years ended December 31, 2018, 2017 and 2016, $11 million, $103 million and $113 million, respectively, of restricted cash is included in the total cash and restricted cash balance at the end of the period. A reconciliation of cash and restricted cash reported on American's consolidated statements of cash flows to the amounts reported on its consolidated balance sheets is provided in a table below the Consolidated Statements of Cash Flows. Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to American’s December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
Standards Effective for 2019 Reporting Periods ASU 2018-02: Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income This ASU provides financial statement preparers with an option to reclassify stranded tax effects within accumulated other comprehensive income to retained earnings due to the U.S. federal corporate income tax rate change as a result of the 2017 Tax Act. The amount of the reclassification is the difference between the amount initially charged or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in accumulated other comprehensive income and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate, excluding the effect of any valuation allowance previously charged to income from continuing operations. This standard is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. American will adopt this standard effective January 1, 2019. The adoption of the standard may impact tax amounts stranded in accumulated other comprehensive income related to American's pension and retiree medical and other postretirement benefit plans. (c) Short-term Investments Short-term investments are classified as available-for-sale and stated at fair value. Realized gains and losses are recorded in nonoperating expense on American’s consolidated statements of operations. Unrealized gains and losses are recorded in accumulated other comprehensive loss on American’s consolidated balance sheets. (d) Restricted Cash and Short-term Investments American has restricted cash and short-term investments related primarily to collateral held to support workers’ compensation obligations. (e) Aircraft Fuel, Spare Parts and Supplies, Net Aircraft fuel is recorded on a first-in, first-out basis. Spare parts and supplies are recorded at average costs less an allowance for obsolescence. These items are expensed when used. (f) Operating Property and Equipment Operating property and equipment is recorded at cost and depreciated or amortized to residual values over the asset’s estimated useful life or the lease term, whichever is less, using the straight-line method. Residual values for aircraft, engines and related rotable parts are generally 5% to 10% of original cost. Costs of major improvements that enhance the usefulness of the asset are capitalized and depreciated or amortized over the estimated useful life of the asset or the lease term, whichever is less. The estimated useful lives for the principal property and equipment classifications are as follows:
American assesses impairment on operating property and equipment when events and circumstances indicate that the assets may be impaired. An asset or group of assets is considered impaired when the undiscounted cash flows estimated to be generated by the assets are less than the carrying amount of the assets and the net book value of the assets exceeds their estimated fair value. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell. Total depreciation and amortization expense was $2.4 billion, $2.1 billion and $1.8 billion for the years ended December 31, 2018, 2017 and 2016, respectively. (g) Leases American determines if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, current operating lease liabilities and noncurrent operating lease liabilities in American’s consolidated balance sheet. Finance leases are included in property and equipment, current maturities of long-term debt and finance leases and long-term debt and finance leases, net of current maturities, in American’s consolidated balance sheet. ROU assets represent American’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. American uses its estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of lease payments. American gives consideration to its recent debt issuances as well as publicly available data for instruments with similar characteristics when calculating its incremental borrowing rates. American’s lease term includes options to extend the lease when it is reasonably certain that it will exercise that option. Leases with a term of 12 months or less are not recorded on the balance sheet. American’s lease agreements do not contain any residual value guarantees. Under certain of American’s capacity purchase agreements with third-party regional carriers, American does not own the underlying aircraft. However, since American controls the marketing, scheduling, ticketing, pricing and seat inventories of these aircraft and therefore control the asset, the aircraft is deemed to be leased for accounting purposes. For these capacity purchase agreements, American accounts for the lease and non-lease components separately. The lease component consists of the aircraft and the non-lease components consist of services, such as the crew and maintenance. American allocates the consideration in the capacity purchase agreements to the lease and non-lease components using their estimated relative standalone prices. See Note 10(b) for additional information on its capacity purchase agreements. For real estate, American accounts for the lease and non-lease components as a single lease component. (h) Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are recorded net as noncurrent deferred income taxes. American provides a valuation allowance for its deferred tax assets when it is more likely than not that some portion, or all of its deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. American considers all available positive and negative evidence and makes certain assumptions in evaluating the realizability of its deferred tax assets. Many factors are considered that impact American’s assessment of future profitability, including conditions which are beyond American’s control, such as the health of the economy, the level and volatility of fuel prices and travel demand. (i) Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets acquired and liabilities assumed. Goodwill is not amortized but assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that goodwill may be impaired. American has one consolidated reporting unit. Goodwill is assessed for impairment by initially performing a qualitative assessment and, if necessary, then comparing the fair value of the reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is less than the carrying value, a second step is performed to determine the implied fair value of goodwill. If the implied fair value of goodwill is lower than its carrying value, an impairment charge equal to the difference is recorded. Based upon American’s annual assessment, there was no goodwill impairment in 2018. The carrying value of the goodwill on American’s consolidated balance sheets was $4.1 billion as of December 31, 2018 and 2017. (j) Other Intangibles, Net Intangible assets consist primarily of domestic airport slots, customer relationships, marketing agreements, international slots and route authorities, airport gate leasehold rights and tradenames. Finite-Lived Intangible Assets Finite-lived intangible assets are amortized over their respective estimated useful lives and reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. The following table provides information relating to American’s amortizable intangible assets as of December 31, 2018 and 2017 (in millions):
Certain domestic airport slots and airport gate leasehold rights are amortized on a straight-line basis over 25 years. The customer relationships and marketing agreements were identified as intangible assets subject to amortization and are amortized on a straight-line basis over approximately nine years and 30 years, respectively. Tradenames are fully amortized. American recorded amortization expense related to these intangible assets of $41 million, $44 million and $76 million for the years ended December 31, 2018, 2017 and 2016, respectively. American expects to record annual amortization expense for these intangible assets as follows (in millions):
Indefinite-Lived Intangible Assets Indefinite-lived intangible assets include certain domestic airport slots at American’s hubs and international slots and route authorities. Indefinite-lived intangible assets are not amortized but instead are assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that the asset may be impaired. For both periods as of December 31, 2018 and 2017, American had $1.9 billion of indefinite-lived intangible assets on its consolidated balance sheets. In the second quarter of 2018, American recorded a $26 million impairment charge on a Brazil route authority as a result of the U.S.-Brazil open skies agreement, which is included within special items, net on its consolidated statement of operations. Indefinite-lived intangible assets are assessed for impairment by initially performing a qualitative assessment to determine whether American believes it is more likely than not that an asset has been impaired. If American believes impairment has occurred, American then evaluates for impairment by comparing the estimated fair value of assets to the carrying value. An impairment charge is recognized if the asset’s estimated fair value is less than its carrying value. Based upon American’s annual assessment, there were no additional indefinite-lived intangible asset impairments in 2018 other than the Brazil route authority described above. (k) Revenue Recognition Revenue Effective January 1, 2018, American adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. Refer to “Recent Accounting Pronouncements” in Note 1(b) for the effects of the adoption on American’s consolidated statements of operations for the years ended December 31, 2017 and 2016 and on American’s consolidated balance sheet as of December 31, 2017. Under the New Revenue Standard, revenue is recognized upon the transfer of control of promised products or services to American’s customers in an amount that reflects the consideration it expects to receive in exchange for those products or services. The following are the significant categories comprising American’s reported operating revenues (in millions):
The following is American’s total passenger revenue by geographic region (in millions):
American attributes passenger revenue by geographic region based upon the origin and destination of each flight segment. Passenger Revenue American recognizes all revenues generated from transportation on American and its regional flights operated under the brand name American Eagle, including associated baggage fees, ticketing change fees and other inflight services, as passenger revenue when transportation is provided. Ticket and other related sales for transportation that has not yet been provided are initially deferred and recorded as air traffic liability on American’s consolidated balance sheets. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The majority of tickets sold are nonrefundable. A small percentage of tickets, some of which are partially used tickets, expire unused. Due to complex pricing structures, refund and exchange policies, and interline agreements with other airlines, certain amounts are recognized in passenger revenue using estimates regarding both the timing of the revenue recognition and the amount of revenue to be recognized. These estimates are generally based on the analysis of American’s historical data. American has consistently applied this accounting method to estimate revenue from forfeited tickets at the date of travel. Estimated future refunds and exchanges included in the air traffic liability are routinely evaluated based on subsequent activity to validate the accuracy of American’s estimates. Any adjustments resulting from periodic evaluations of the estimated air traffic liability are included in passenger revenue during the period in which the evaluations are completed. Various taxes and fees assessed on the sale of tickets to end customers are collected by American as an agent and remitted to taxing authorities. These taxes and fees have been presented on a net basis in the accompanying consolidated statements of operations and recorded as a liability until remitted to the appropriate taxing authority. Loyalty Revenue American currently operates the loyalty program, AAdvantage. This program awards mileage credits to passengers who fly on American, any oneworld airline or other partner airlines, or by using the services of other program participants, such as the Citi and Barclaycard US co-branded credit cards, hotels and car rental companies. Mileage credits can be redeemed for travel on American and other participating partner airlines, as well as other non-air travel awards such as hotels and rental cars. For mileage credits earned by AAdvantage loyalty program members, American applies the deferred revenue method in accordance with the New Revenue Standard. Mileage credits earned through travel For mileage credits earned through travel, American applies a relative selling price approach whereby the total amount collected from each passenger ticket sale is allocated between the air transportation and the mileage credits earned. The portion of each passenger ticket sale attributable to mileage credits earned is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. The estimated selling price of mileage credits is determined using an equivalent ticket value approach, which uses historical data, including award redemption patterns by geographic region and class of service, as well as similar fares as those used to settle award redemptions. The estimated selling price of miles is adjusted for an estimate of miles that will not be redeemed based on historical redemption patterns. Mileage credits sold to co-branded credit cards and other partners American sells mileage credits to participating airline partners and non-airline business partners including American’s co-branded credit card partners, under contracts with terms extending generally for one to nine years. Consideration received from the sale of mileage credits is variable and payment terms typically are within 30 days subsequent to the month of mileage sale. Sales of mileage credits to non-airline business partners are comprised of two components, transportation and marketing. American allocates the consideration received from these sales of mileage credits based on the relative selling price of each product or service delivered. American’s most significant partner agreements are its co-branded credit card agreements with Citi and Barclaycard US that American entered into in 2016. American identified the following revenue elements in these co-branded credit card agreements: the transportation component; and the use of intellectual property, including the American brand and access to loyalty program member lists, which is the predominant element in the agreements, as well as advertising (collectively, the marketing component). Accordingly, American recognizes the marketing component in other revenue in the period of the mileage sale following the sales-based royalty method. The transportation component represents the estimated selling price of future travel awards and is determined using the same equivalent ticket value approach described above. The portion of each mileage credit sold attributable to transportation is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. For the portion of American’s outstanding mileage credits that it estimates will not be redeemed, American recognizes the associated value proportionally as the remaining mileage credits are redeemed. American’s estimates are based on analysis of historical redemptions. Cargo Revenue Cargo revenue is recognized when American provides the transportation. Other Revenue Other revenue includes revenue associated with American’s loyalty program, which is comprised principally of the marketing component of mileage sales to co-branded credit card and other partners and other marketing related payments. For the years ended December 31, 2018, 2017 and 2016, loyalty revenue included in other revenue was $2.4 billion, $2.1 billion and $1.9 billion, respectively. The accounting and recognition for the loyalty program marketing services are discussed above in “Loyalty Revenue.” The remaining amounts included within other revenue relate to airport clubs, advertising and vacation-related services. Contract Balances American’s significant contract liabilities are comprised of (1) outstanding loyalty program mileage credits that may be redeemed for future travel and other non-air travel awards, reported as loyalty program liability on American’s consolidated balance sheet and (2) ticket sales for transportation that has not yet been provided, reported as air traffic liability on American’s consolidated balance sheet.
The balance of the loyalty program liability fluctuates based on seasonal patterns, which impact the volume of mileage credits issued through travel or sold to co-branded credit card and other partners (deferral of revenue) and mileage credits redeemed (recognition of revenue). Changes in loyalty program liability are as follows (in millions):
The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The balance in American’s air traffic liability also fluctuates with seasonal travel patterns. The contract duration of passenger tickets is one year. Accordingly, any revenue associated with tickets sold for future travel will be recognized within twelve months. For 2018, $3.1 billion of revenue was recognized in passenger revenue that was included in American’s air traffic liability at December 31, 2017. With respect to contract receivables, reflected as accounts receivable, net on the accompanying consolidated balance sheet, these primarily include receivables for tickets sold to individual passengers through the use of major credit cards. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. (l) Maintenance, Materials and Repairs Maintenance and repair costs for owned and leased flight equipment are charged to operating expense as incurred, except costs incurred for maintenance and repair under flight hour maintenance contract agreements, which are accrued based on contractual terms when an obligation exists. (m) Selling Expenses Selling expenses include credit card fees, commissions, computerized reservations systems fees and advertising. Advertising costs are expensed as incurred. Advertising expense was $128 million, $135 million and $116 million for the years ended December 31, 2018, 2017 and 2016, respectively. (n) Share-based Compensation American accounts for its share-based compensation expense based on the fair value of the stock award at the time of grant, which is recognized ratably over the vesting period of the stock award. Certain awards have performance conditions that must be achieved prior to vesting and are expensed based on the expected achievement at each reporting period. The fair value of stock appreciation rights is estimated using a Black-Scholes option pricing model. The fair value of restricted stock units is based on the market price of the underlying shares of AAG common stock on the date of grant. See Note 13 for further discussion of share-based compensation. (o) Foreign Currency Gains and Losses Foreign currency gains and losses are recorded as part of other income, net within total nonoperating expense, net in American’s consolidated statements of operations. Foreign currency losses for 2018 and 2017 were $54 million and $4 million, respectively, and for 2016, foreign currency gains were $1 million. (p) Other Operating Expenses Other operating expenses includes costs associated with ground and cargo handling, crew travel, aircraft food and catering, passenger accommodation, airport security, international navigation fees and certain general and administrative expenses. (q) Regional Expenses Expenses associated with American Eagle operations are classified as regional expenses on American’s consolidated statements of operations. Regional expenses consist of the following (in millions):
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| Special Items, Net | Special Items, Net Special items, net on our consolidated statements of operations consisted of the following (in millions):
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| Special Items, Net | Special Items, Net Special items, net on American’s consolidated statements of operations consisted of the following (in millions):
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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| Earnings Per Common Share | Earnings Per Common Share The following table sets forth the computation of basic and diluted earnings per common share (EPS) (in millions, except share and per share amounts):
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- Definition The entire disclosure for earnings per share. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Share Repurchase Programs and Dividends |
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| Equity [Abstract] | |
| Share Repurchase Programs and Dividends | Share Repurchase Programs and Dividends In April 2018, we announced that our Board of Directors authorized a new $2.0 billion share repurchase program that expires on December 31, 2020. Since July 2014, our Board of Directors has approved seven share repurchase programs aggregating $13.0 billion of authority. As of December 31, 2018, there was $1.7 billion remaining authority to repurchase shares under our new $2.0 billion share repurchase program. Share repurchases under our repurchase programs may be made through a variety of methods, which may include open market purchases, privately negotiated transactions, block trades or accelerated share repurchase transactions. Any such repurchases that may be made from time to time will be subject to market and economic conditions, applicable legal requirements and other relevant factors. We are not obligated to repurchase any specific number of shares and our repurchase of AAG common stock may be limited, suspended or discontinued at any time at our discretion and without prior notice. In 2018, we repurchased 16.6 million shares of AAG common stock for $800 million at a weighted average cost per share of $48.15. In 2017, we repurchased 33.9 million shares of AAG common stock for $1.6 billion at a weighted average cost per share of $45.68. In 2016, we repurchased 119.8 million shares of AAG common stock for $4.4 billion at a weighted average cost per share of $36.86. Since the inception of our share repurchase programs in July 2014 through December 31, 2018, we have repurchased 278.9 million shares of AAG common stock for $11.3 billion at a weighted average cost per share of $40.69. Our Board of Directors declared quarterly cash dividends of $0.10 per share totaling $186 million, $198 million and $224 million for 2018, 2017 and 2016, respectively. |
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt |
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| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt | Debt Long-term debt included in the consolidated balance sheets consisted of (in millions):
The table below shows the maximum availability under revolving credit facilities, all of which were undrawn, as of December 31, 2018 (in millions):
Secured financings are collateralized by assets, primarily aircraft, engines, simulators, aircraft spare parts, airport gate leasehold rights, route authorities, airport slots and pre-delivery payments. At December 31, 2018, the maturities of long-term debt are as follows (in millions):
(a) 2013, 2014, April 2016 and December 2016 Credit Facilities 2013 Credit Facilities In May 2018, American and AAG entered into a Fourth Amendment (the Fourth Amendment to the 2013 Credit Agreement) to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement dated as of May 21, 2015, which amended and restated the Credit and Guaranty Agreement dated as of June 27, 2013 (as previously amended, the 2013 Credit Agreement, the revolving facility established thereunder, the 2013 Revolving Facility, the term loan facility established thereunder, the 2013 Term Loan Facility, and the 2013 Revolving Facility together with the 2013 Term Loan Facility, the 2013 Credit Facilities), pursuant to which American refinanced $1.8 billion of the existing term loans outstanding under the 2013 Credit Facilities with proceeds of term loans incurred under the Fourth Amendment to the 2013 Credit Agreement (the 2013 Replacement Term Loans). The LIBOR margin on the 2013 Replacement Term Loans was reduced from 2.00% to 1.75% and the base rate margin on the 2013 Replacement Term Loans was reduced from 1.00% to 0.75%. Additionally, the maturity date of the 2013 Replacement Term Loans was extended to June 2025 pursuant to the Fourth Amendment to the 2013 Credit Agreement. In December 2018, American and AAG entered into a Fifth Amendment (the Fifth Amendment to the 2013 Credit Agreement) to the 2013 Credit Agreement, as previously amended by the Fourth Amendment to the 2013 Credit Agreement. Pursuant to the Fifth Amendment to the 2013 Credit Agreement, adjustments to the 2013 Revolving Facility were made, including reducing the total aggregate commitments under the 2013 Revolving Facility by $200 million, extending the maturity date for the revolver loans thereunder from October 2022 to October 2023 and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2013 Revolving Facility. 2014 Credit Facilities In September 2018, American and AAG entered into a Fifth Amendment (the Fifth Amendment to the 2014 Credit Agreement) to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement dated as of April 20, 2015, which amended and restated the Credit and Guaranty Agreement dated as of October 10, 2014 (as previously amended, the 2014 Credit Agreement, the revolving credit facility established thereunder, the 2014 Revolving Facility, the term loan facility established thereunder, the 2014 Term Loan Facility, and the 2014 Revolving Facility together with the 2014 Term Loan Facility, the 2014 Credit Facilities). The Fifth Amendment to the 2014 Credit Agreement provides for incremental term loans in the amount of $500 million under the 2014 Term Loan Facility. The terms of such incremental term loans are substantially similar to the terms of the existing term loans under the 2014 Term Loan Facility, including those with regard to maturity and interest rate margins. As of December 31, 2018, approximately $1.2 billion was outstanding under the 2014 Term Loan Facility. In December 2018, American and AAG entered into a Sixth Amendment (the Sixth Amendment to the 2014 Credit Agreement) to the 2014 Credit Agreement, as previously amended by the Fifth Amendment to the 2014 Credit Agreement. Pursuant to the Sixth Amendment to the 2014 Credit Agreement, adjustments to the 2014 Revolving Facility were made, including increasing the total aggregate commitments under the 2014 Revolving Facility by approximately $543 million, extending the maturity date for the revolver loans thereunder from October 2022 to October 2023 and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. In addition to the slots, gates and routes (SGR) between airports in the United States and LHR previously pledged as collateral for the 2014 Credit Facilities, SGR between airports in the United States and other countries in the European Union were added as collateral under the 2014 Credit Facilities pursuant to the Sixth Amendment to the 2014 Credit Agreement. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2014 Revolving Facility. April 2016 Credit Facilities In December 2018, American and AAG entered into a Fourth Amendment (the Fourth Amendment to the April 2016 Credit Agreement) to the Credit and Guaranty Agreement, amending the Credit and Guaranty Agreement dated as of April 29, 2016 (as previously amended, the April 2016 Credit Agreement, and the revolving credit facility established thereunder, the April 2016 Revolving Facility, the term loan facility established thereunder, the 2016 Term Loan Facility and the 2016 April Revolving Facility together with the 2016 Term Loan Facility, the April 2016 Credit Facilities). Pursuant to the Fourth Amendment to the April 2016 Credit Agreement, adjustments to the April 2016 Revolving Facility were made, including extending the maturity date from October 2022 to October 2023 for the revolver loans established thereunder and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the April 2016 Revolving Facility. December 2016 Credit Facilities In November 2017, American and AAG entered into the First Amendment to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement, dated as of December 15, 2016, pursuant to which American refinanced the $1.3 billion term loan facility due December 2023 established thereunder (the December 2016 Term Loan Facility, and together with a revolving credit facility that may be established thereunder in the future, the December 2016 Credit Facilities), to reduce the LIBOR margin from 2.50% to 2.00% and the base rate margin from 1.50% to 1.00%. Certain details of our 2013 Credit Facilities, 2014 Credit Facilities, April 2016 Credit Facilities and December 2016 Credit Facilities (collectively referred to as the Credit Facilities) are shown in the table below as of December 31, 2018:
The term loans under each of the Credit Facilities are repayable in annual installments in an amount equal to 1.00% of the aggregate principal amount issued, with any unpaid balance due on the respective maturity dates. Voluntary prepayments may be made by American at any time. The 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility provide that American may from time to time borrow, repay and reborrow loans thereunder. The 2013 Revolving Facility and 2014 Revolving Facility have the ability to issue letters of credit thereunder in an aggregate amount outstanding at any time up to $100 million and $200 million, respectively. The 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility are each subject to an undrawn annual fee of 0.63%. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2013 Revolving Facility, 2014 Revolving Facility or April 2016 Revolving Facility. The December 2016 Credit Facilities provide for a revolving credit facility that may be established thereunder in the future. Subject to certain limitations and exceptions, the Credit Facilities are secured by collateral, including certain spare parts, certain slots, certain route authorities, certain simulators and certain leasehold rights. American has the ability to make future modifications to the collateral pledged, subject to certain restrictions. American’s obligations under the Credit Facilities are guaranteed by AAG. American is required to maintain a certain minimum ratio of appraised value of the collateral to the outstanding loans as further described below in “Collateral-Related Covenants.” The Credit Facilities contain events of default customary for similar financings, including cross default to other material indebtedness. Upon the occurrence of an event of default, the outstanding obligations may be accelerated and become due and payable immediately. In addition, if a “change of control” occurs, American will (absent an amendment or waiver) be required to repay at par the loans outstanding under the Credit Facilities and terminate the 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility and any revolving credit facility established under the December 2016 Credit Facilities. The Credit Facilities also include covenants that, among other things, require AAG to maintain a minimum aggregate liquidity (as defined in the Credit Facilities) of not less than $2.0 billion and limit the ability of AAG and its restricted subsidiaries to pay dividends and make certain other payments, make certain investments, incur additional indebtedness, incur liens on the collateral, dispose of the collateral, enter into certain affiliate transactions and engage in certain business activities, in each case subject to certain exceptions. (b) EETCs Below is a discussion of the 2018 aircraft financing activities resulting from EETC issuances. 2017-2 EETCs In August and October 2017, American created three pass-through trusts which issued approximately $1.0 billion aggregate face amount of Series 2017-2 Class AA, Class A and Class B EETCs (the 2017-2 EETCs) in connection with the financing of 30 aircraft delivered to American through May 2018 (the 2017-2 Aircraft). In 2017, approximately $735 million of the net proceeds were used to purchase equipment notes issued by American in connection with the financing of 24 aircraft financed under the 2017-2 EETC. During the first six months of 2018, the remaining $283 million of net proceeds was used to purchase equipment notes issued by American in connection with the financing of the remaining six aircraft financed under the 2017-2 EETCs. Interest and principal payments on equipment notes issued in connection with the 2017-2 EETCs are payable semi-annually in April and October of each year, with interest payments that began in April 2018 and principal payments that began in October 2018. These equipment notes are secured by liens on the 2017-2 Aircraft. Certain information regarding the 2017-2 EETC equipment notes, as of December 31, 2018, is set forth in the table below.
2012-2C(R) EETCs On May 15, 2018, American created a pass-through trust which issued $100 million aggregate face amount of the Series 2012-2 Class C(R) EETCs (the 2012-2C(R) EETCs). Interest and principal payments on equipment notes issued in connection with the 2012-2C(R) EETCs are payable semi-annually in June and December of each year, which began in December 2018. American had previously issued $100 million aggregate face amount of Series 2012-2 Class C Certificates on June 6, 2013 (the 2012-2C Certificates) in connection with the financing of 11 aircraft previously delivered to American between May 2013 and October 2013. On June 1, 2018, American redeemed the Series C Equipment Notes relating to such 2012-2C Certificates (the 2012-2C Equipment Notes), which were scheduled to mature on June 3, 2018. The proceeds received from the 2012-2C(R) EETCs were used for the redemption of the 2012-2 Series C Equipment Notes and the repayment of the 2012-2C Certificates. Certain information regarding the 2012-2 Class C(R) EETC equipment notes, as of December 31, 2018, is set forth in the table below.
(c) Equipment Loans and Other Notes Payable Issued in 2018 In 2018, American entered into agreements under which it borrowed $1.5 billion in connection with the financing of certain aircraft and certain pre-delivery purchase deposits. Debt incurred under these agreements matures in 2021 through 2030 and bears interest at fixed and variable rates of LIBOR plus an applicable margin averaging 4.28% at December 31, 2018. (d) Senior Notes The details of our 5.50% and 4.625% senior notes are shown in the table below as of December 31, 2018:
The 5.50% and 4.625% senior notes are senior unsecured obligations of AAG. The senior notes are fully and unconditionally guaranteed by American. The indentures for the senior notes contain covenants and events of default generally customary for similar financings. In addition, if we experience specific kinds of changes of control, we must offer to repurchase the senior notes at a price of 101% of the principal amount plus accrued and unpaid interest, if any, to (but not including) the repurchase date. Upon the occurrence of certain events of default, the senior notes may be accelerated and become due and payable. Guarantees As of December 31, 2018, AAG had issued guarantees covering approximately $769 million of American’s special facility revenue bonds (and interest thereon) and $8.4 billion of American’s secured debt (and interest thereon), including the Credit Facilities and certain EETC financings. Collateral-Related Covenants Certain of our debt financing agreements contain loan to value (LTV) ratio covenants and require us to annually appraise the related collateral. Pursuant to such agreements, if the LTV ratio exceeds a specified threshold, we are required, as applicable, to pledge additional qualifying collateral (which in some cases may include cash collateral), or pay down such financing, in whole or in part. Specifically, we are required to meet certain collateral coverage tests on an annual basis for our Credit Facilities, as described below:
At December 31, 2018, we were in compliance with the applicable collateral coverage tests as of the most recent measurement dates. |
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Debt | Debt Long-term debt included in the consolidated balance sheets consisted of (in millions):
The table below shows the maximum availability under revolving credit facilities, all of which were undrawn, as of December 31, 2018 (in millions):
Secured financings are collateralized by assets, primarily aircraft, engines, simulators, aircraft spare parts, airport gate leasehold rights, route authorities, airport slots and pre-delivery payments. At December 31, 2018, the maturities of long-term debt are as follows (in millions):
(a) 2013, 2014, April 2016 and December 2016 Credit Facilities 2013 Credit Facilities In May 2018, American and AAG entered into a Fourth Amendment (the Fourth Amendment to the 2013 Credit Agreement) to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement dated as of May 21, 2015, which amended and restated the Credit and Guaranty Agreement dated as of June 27, 2013 (as previously amended, the 2013 Credit Agreement, the revolving facility established thereunder, the 2013 Revolving Facility, the term loan facility established thereunder, the 2013 Term Loan Facility, and the 2013 Revolving Facility together with the 2013 Term Loan Facility, the 2013 Credit Facilities), pursuant to which American refinanced $1.8 billion of the existing term loans outstanding under the 2013 Credit Facilities with proceeds of term loans incurred under the Fourth Amendment to the 2013 Credit Agreement (the 2013 Replacement Term Loans). The LIBOR margin on the 2013 Replacement Term Loans was reduced from 2.00% to 1.75% and the base rate margin on the 2013 Replacement Term Loans was reduced from 1.00% to 0.75%. Additionally, the maturity date of the 2013 Replacement Term Loans was extended to June 2025 pursuant to the Fourth Amendment to the 2013 Credit Agreement. In December 2018, American and AAG entered into a Fifth Amendment (the Fifth Amendment to the 2013 Credit Agreement) to the 2013 Credit Agreement, as previously amended by the Fourth Amendment to the 2013 Credit Agreement. Pursuant to the Fifth Amendment to the 2013 Credit Agreement, adjustments to the 2013 Revolving Facility were made, including reducing the total aggregate commitments under the 2013 Revolving Facility by $200 million, extending the maturity date for the revolver loans thereunder from October 2022 to October 2023 and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2013 Revolving Facility. 2014 Credit Facilities In September 2018, American and AAG entered into a Fifth Amendment (the Fifth Amendment to the 2014 Credit Agreement) to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement dated as of April 20, 2015, which amended and restated the Credit and Guaranty Agreement dated as of October 10, 2014 (as previously amended, the 2014 Credit Agreement, the revolving credit facility established thereunder, the 2014 Revolving Facility, the term loan facility established thereunder, the 2014 Term Loan Facility, and the 2014 Revolving Facility together with the 2014 Term Loan Facility, the 2014 Credit Facilities). The Fifth Amendment to the 2014 Credit Agreement provides for incremental term loans in the amount of $500 million under the 2014 Term Loan Facility. The terms of such incremental term loans are substantially similar to the terms of the existing term loans under the 2014 Term Loan Facility, including those with regard to maturity and interest rate margins. As of December 31, 2018, approximately $1.2 billion was outstanding under the 2014 Term Loan Facility. In December 2018, American and AAG entered into a Sixth Amendment (the Sixth Amendment to the 2014 Credit Agreement) to the 2014 Credit Agreement, as previously amended by the Fifth Amendment to the 2014 Credit Agreement. Pursuant to the Sixth Amendment to the 2014 Credit Agreement, adjustments to the 2014 Revolving Facility were made, including increasing the total aggregate commitments under the 2014 Revolving Facility by approximately $543 million, extending the maturity date for the revolver loans thereunder from October 2022 to October 2023 and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. In addition to the slots, gates and routes (SGR) between airports in the United States and LHR previously pledged as collateral for the 2014 Credit Facilities, SGR between airports in the United States and other countries in the European Union were added as collateral under the 2014 Credit Facilities pursuant to the Sixth Amendment to the 2014 Credit Agreement. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2014 Revolving Facility. April 2016 Credit Facilities In December 2018, American and AAG entered into a Fourth Amendment (the Fourth Amendment to the April 2016 Credit Agreement) to the Credit and Guaranty Agreement, amending the Credit and Guaranty Agreement dated as of April 29, 2016 (as previously amended, the April 2016 Credit Agreement, and the revolving credit facility established thereunder, the April 2016 Revolving Facility, the term loan facility established thereunder, the 2016 Term Loan Facility and the 2016 April Revolving Facility together with the 2016 Term Loan Facility, the April 2016 Credit Facilities). Pursuant to the Fourth Amendment to the April 2016 Credit Agreement, adjustments to the April 2016 Revolving Facility were made, including extending the maturity date from October 2022 to October 2023 for the revolver loans established thereunder and reducing the LIBOR margin from 2.25% to 2.00% and the base rate margin from 1.25% to 1.00% for certain of the lenders of the revolver loans thereunder. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the April 2016 Revolving Facility. December 2016 Credit Facilities In November 2017, American and AAG entered into the First Amendment to the Amended and Restated Credit and Guaranty Agreement, amending the Amended and Restated Credit and Guaranty Agreement, dated as of December 15, 2016, pursuant to which American refinanced the $1.3 billion term loan facility due December 2023 established thereunder (the December 2016 Term Loan Facility, and together with a revolving credit facility that may be established thereunder in the future, the December 2016 Credit Facilities), to reduce the LIBOR margin from 2.50% to 2.00% and the base rate margin from 1.50% to 1.00%. Certain details of American’s 2013 Credit Facilities, 2014 Credit Facilities, April 2016 Credit Facilities and December 2016 Credit Facilities (collectively referred to as the Credit Facilities) are shown in the table below as of December 31, 2018:
The term loans under each of the Credit Facilities are repayable in annual installments in an amount equal to 1.00% of the aggregate principal amount issued, with any unpaid balance due on the respective maturity dates. Voluntary prepayments may be made by American at any time. The 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility provide that American may from time to time borrow, repay and reborrow loans thereunder. The 2013 Revolving Facility and 2014 Revolving Facility have the ability to issue letters of credit thereunder in an aggregate amount outstanding at any time up to $100 million and $200 million, respectively. The 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility are each subject to an undrawn annual fee of 0.63%. As of December 31, 2018, there were no borrowings or letters of credit outstanding under the 2013 Revolving Facility, 2014 Revolving Facility or April 2016 Revolving Facility. The December 2016 Credit Facilities provide for a revolving credit facility that may be established thereunder in the future. Subject to certain limitations and exceptions, the Credit Facilities are secured by collateral, including certain spare parts, certain slots, certain route authorities, certain simulators and certain leasehold rights. American has the ability to make future modifications to the collateral pledged, subject to certain restrictions. American’s obligations under the Credit Facilities are guaranteed by AAG. American is required to maintain a certain minimum ratio of appraised value of the collateral to the outstanding loans as further described below in “Collateral-Related Covenants.” The Credit Facilities contain events of default customary for similar financings, including cross default to other material indebtedness. Upon the occurrence of an event of default, the outstanding obligations may be accelerated and become due and payable immediately. In addition, if a “change of control” occurs, American will (absent an amendment or waiver) be required to repay at par the loans outstanding under the Credit Facilities and terminate the 2013 Revolving Facility, 2014 Revolving Facility and April 2016 Revolving Facility and any revolving credit facility established under the December 2016 Credit Facilities. The Credit Facilities also include covenants that, among other things, require AAG to maintain a minimum aggregate liquidity (as defined in the Credit Facilities) of not less than $2.0 billion and limit the ability of AAG and its restricted subsidiaries to pay dividends and make certain other payments, make certain investments, incur additional indebtedness, incur liens on the collateral, dispose of the collateral, enter into certain affiliate transactions and engage in certain business activities, in each case subject to certain exceptions. (b) EETCs Below is a discussion of the 2018 aircraft financing activities resulting from EETC issuances. 2017-2 EETCs In August and October 2017, American created three pass-through trusts which issued approximately $1.0 billion aggregate face amount of Series 2017-2 Class AA, Class A and Class B EETCs (the 2017-2 EETCs) in connection with the financing of 30 aircraft delivered to American through May 2018 (the 2017-2 Aircraft). In 2017, approximately $735 million of the net proceeds were used to purchase equipment notes issued by American in connection with the financing of 24 aircraft financed under the 2017-2 EETC. During the first six months of 2018, the remaining $283 million of net proceeds was used to purchase equipment notes issued by American in connection with the financing of the remaining six aircraft financed under the 2017-2 EETCs. Interest and principal payments on equipment notes issued in connection with the 2017-2 EETCs are payable semi-annually in April and October of each year, with interest payments that began in April 2018 and principal payments that began in October 2018. These equipment notes are secured by liens on the 2017-2 Aircraft. Certain information regarding the 2017-2 EETC equipment notes, as of December 31, 2018, is set forth in the table below.
2012-2C(R) EETCs On May 15, 2018, American created a pass-through trust which issued $100 million aggregate face amount of the Series 2012-2 Class C(R) EETCs (the 2012-2C(R) EETCs). Interest and principal payments on equipment notes issued in connection with the 2012-2C(R) EETCs are payable semi-annually in June and December of each year, which began in December 2018. American had previously issued $100 million aggregate face amount of Series 2012-2 Class C Certificates on June 6, 2013 (the 2012-2C Certificates) in connection with the financing of 11 aircraft previously delivered to American between May 2013 and October 2013. On June 1, 2018, American redeemed the Series C Equipment Notes relating to such 2012-2C Certificates (the 2012-2C Equipment Notes), which were scheduled to mature on June 3, 2018. The proceeds received from the 2012-2C(R) EETCs were used for the redemption of the 2012-2 Series C Equipment Notes and the repayment of the 2012-2C Certificates. Certain information regarding the 2012-2 Class C(R) EETC equipment notes, as of December 31, 2018, is set forth in the table below.
(c) Equipment Loans and Other Notes Payable Issued in 2018 In 2018, American entered into agreements under which it borrowed $1.5 billion in connection with the financing of certain aircraft and certain pre-delivery purchase deposits. Debt incurred under these agreements matures in 2021 through 2030 and bears interest at fixed and variable rates of LIBOR plus an applicable margin averaging 4.28% at December 31, 2018. Guarantees As of December 31, 2018, American had issued guarantees covering AAG’s $750 million aggregate principal amount of 5.50% senior notes due 2019 and $500 million aggregate principal amount of 4.625% senior notes due 2020. Collateral-Related Covenants Certain of American’s debt financing agreements contain loan to value (LTV) ratio covenants and require American to annually appraise the related collateral. Pursuant to such agreements, if the LTV ratio exceeds a specified threshold, American is required, as applicable, to pledge additional qualifying collateral (which in some cases may include cash collateral), or pay down such financing, in whole or in part. Specifically, American is required to meet certain collateral coverage tests on an annual basis for its Credit Facilities, as described below:
At December 31, 2018, American was in compliance with the applicable collateral coverage tests as of the most recent measurement dates. |
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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Leases |
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| Leases | Leases We lease certain aircraft and engines, including aircraft under capacity purchase agreements. As of December 31, 2018, we had 660 leased aircraft, with remaining terms ranging from less than one year to 12 years. At each airport where we conduct flight operations, we have agreements, generally with a governmental unit or authority, for the use of passenger, operations and baggage handling space as well as runways and taxiways. These agreements, particularly in the U.S., often contain provisions for periodic adjustments to rates and charges applicable under such agreements. These rates and charges also vary with our level of operations and the operations of the airport. Additionally, at our hub locations and in certain other cities we serve, we lease administrative offices, catering, cargo, training, maintenance and other facilities. The components of lease expense were as follows (in millions):
Included in the table above is $226 million of operating lease cost under our capacity purchase agreement with Republic. We hold a 25% equity interest in Republic Holdings, the parent company of Republic. Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):
Supplemental cash flow and other information related to leases was as follows (in millions):
Maturities of lease liabilities were as follows (in millions):
As of December 31, 2018, we have additional operating lease commitments that have not yet commenced of approximately $1.9 billion for 22 787-8 aircraft to be delivered in 2020 and 2021 with lease terms of 10 years. Disclosures related to periods prior to adoption of the New Lease Standard Operating lease rent expense, excluding landing fees, was approximately $3.2 billion in each of 2017 and 2016, which includes the lease of certain aircraft under capacity purchase agreements. As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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| Leases | Leases American leases certain aircraft and engines, including aircraft under capacity purchase agreements. As of December 31, 2018, American had 660 leased aircraft, with remaining terms ranging from less than one year to 12 years. At each airport where American conducts flight operations, American has agreements, generally with a governmental unit or authority, for the use of passenger, operations and baggage handling space as well as runways and taxiways. These agreements, particularly in the U.S., often contain provisions for periodic adjustments to rates and charges applicable under such agreements. These rates and charges also vary with American’s level of operations and the operations of the airport. Additionally, at American’s hub locations and in certain other cities it serves, American leases administrative offices, catering, cargo, training, maintenance and other facilities. The components of lease expense were as follows (in millions):
Included in the table above is $226 million of operating lease cost under American’s capacity purchase agreement with Republic. American holds a 25% equity interest in Republic Holdings, the parent company of Republic. Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):
Supplemental cash flow and other information related to leases was as follows (in millions):
Maturities of lease liabilities were as follows (in millions):
As of December 31, 2018, American has additional operating lease commitments that have not yet commenced of approximately $1.9 billion for 22 787-8 aircraft to be delivered in 2020 and 2021 with lease terms of 10 years. Disclosures related to periods prior to adoption of the New Lease Standard Operating lease rent expense, excluding landing fees, was approximately $3.2 billion and $3.1 billion in 2017 and 2016, respectively, which includes the lease of certain aircraft under capacity purchase agreements. As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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Income Taxes |
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| Income Taxes | Income Taxes The significant components of the income tax provision were (in millions):
The income tax provision differed from amounts computed at the statutory federal income tax rate as follows (in millions):
We provide a valuation allowance for our deferred tax assets, which include our net operating losses (NOLs), when it is more likely than not that some portion, or all of our deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. We consider all available positive and negative evidence and make certain assumptions in evaluating the realizability of our deferred tax assets. Many factors are considered that impact our assessment of future profitability, including conditions which are beyond our control, such as the health of the economy, the level and volatility of fuel prices and travel demand. The total decrease to the valuation allowance was $6 million in 2018. In 2017, the total increase to the valuation allowance was $7 million, $10 million of which is included in the 2017 Tax Act amount in the table above. In 2016, the total increase to the valuation allowance was $7 million. The components of our deferred tax assets and liabilities were (in millions):
At December 31, 2018, we had approximately $10.2 billion of federal NOLs carried over from prior taxable years (NOL Carryforwards) to reduce future federal taxable income, substantially all of which we expect to be available for use in 2019. The federal NOL Carryforwards will expire beginning in 2022 if unused. We also had approximately $3.2 billion of NOL Carryforwards to reduce future state taxable income at December 31, 2018, which will expire in years 2019 through 2038 if unused. Our ability to deduct our NOL Carryforwards and to utilize certain other available tax attributes can be substantially constrained under the general annual limitation rules of Section 382 where an “ownership change” has occurred. Substantially all of our remaining federal NOL Carryforwards attributable to US Airways Group are subject to limitation under Section 382; however, our ability to utilize such NOL Carryforwards is not anticipated to be effectively constrained as a result of such limitation. We elected to be covered by certain special rules for federal income tax purposes that permitted approximately $9.0 billion (with $8.4 billion of unlimited NOL still remaining at December 31, 2018) of our federal NOL Carryforwards to be utilized without regard to the annual limitation generally imposed by Section 382. Similar limitations may apply for state income tax purposes. Our ability to utilize any new NOL Carryforwards arising after the ownership changes is not affected by the annual limitation rules imposed by Section 382 unless another future ownership change occurs. Under the Section 382 limitation, cumulative stock ownership changes among material stockholders exceeding 50% during a rolling three-year period can potentially limit a company’s future use of NOLs and tax credits. See Part I, Item 1A. Risk Factors – “Our ability to utilize our NOL Carryforwards may be limited” for unaudited additional discussion of this risk. At December 31, 2018, we had an AMT credit carryforward of approximately $339 million available for federal income tax purposes, which is now expected to be fully refundable over the next several years as a result of the repeal of corporate AMT. In 2018, we recorded an income tax provision of $472 million, with an effective rate of approximately 25%, which was substantially non-cash. The 2018 income tax provision included an $18 million special income tax charge related to an international income tax matter. Substantially all of our income before income taxes is attributable to the United States. We file our tax returns as prescribed by the tax laws of the jurisdictions in which we operate. Our 2015 through 2017 tax years are still subject to examination by the Internal Revenue Service. Various state and foreign jurisdiction tax years remain open to examination and we are under examination, in administrative appeals, or engaged in tax litigation in certain jurisdictions. We believe that the effect of any assessments will not be material to our consolidated financial statements. The amount of, and changes to, our uncertain tax positions were not material in any of the years presented. We accrue interest and penalties related to unrecognized tax benefits in interest expense and operating expense, respectively. The 2017 Tax Act was enacted on December 22, 2017. The 2017 Tax Act is the most comprehensive tax change in more than 30 years. We have completed our evaluation of the 2017 Tax Act and we have reflected the impact of its effects, including the impact of lower corporate income tax rates (21% vs. 35%) on our deferred tax assets and liabilities and the one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. For the year ended December 31, 2017, we recognized a special income tax provision of $823 million to reflect these impacts of the 2017 Tax Act. |
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | Income Taxes The significant components of the income tax provision were (in millions):
The income tax provision differed from amounts computed at the statutory federal income tax rate as follows (in millions):
American provides a valuation allowance for its deferred tax assets, which include the net operating losses (NOLs), when it is more likely than not that some portion, or all of its deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. American considers all available positive and negative evidence and makes certain assumptions in evaluating the realizability of its deferred tax assets. Many factors are considered that impact American’s assessment of future profitability, including conditions which are beyond its control, such as the health of the economy, the level and volatility of fuel prices and travel demand. The total decrease to the valuation allowance was $6 million in 2018. In 2017, the total increase to the valuation allowance was $12 million, $8 million of which is included in the 2017 Tax Act amount in the table above. In 2016, the total decrease to the valuation allowance was $1 million. The components of American’s deferred tax assets and liabilities were (in millions):
At December 31, 2018, American had approximately $10.6 billion of federal NOLs carried over from prior taxable years (NOL Carryforwards) to reduce future federal taxable income, substantially all of which American expects to be available for use in 2019. American is a member of AAG’s consolidated federal and certain state income tax returns. The amount of federal NOL Carryforwards available in those returns is $10.2 billion, substantially all of which is expected to be available for use in 2019. The federal NOL Carryforwards will expire beginning in 2022 if unused. American also had approximately $3.1 billion of NOL Carryforwards to reduce future state taxable income at December 31, 2018, which will expire in years 2019 through 2038 if unused. American’s ability to deduct its NOL Carryforwards and to utilize certain other available tax attributes can be substantially constrained under the general annual limitation rules of Section 382 where an “ownership change” has occurred. Substantially all of American’s remaining federal NOL Carryforwards attributable to US Airways Group are subject to limitation under Section 382; however, American’s ability to utilize such NOL Carryforwards is not anticipated to be effectively constrained as a result of such limitation. American elected to be covered by certain special rules for federal income tax purposes that permitted approximately $9.5 billion (with $8.6 billion of unlimited NOL still remaining at December 31, 2018) of its federal NOL Carryforwards to be utilized without regard to the annual limitation generally imposed by Section 382. Similar limitations may apply for state income tax purposes. American’s ability to utilize any new NOL Carryforwards arising after the ownership changes is not affected by the annual limitation rules imposed by Section 382 unless another future ownership change occurs. Under the Section 382 limitation, cumulative stock ownership changes among material stockholders exceeding 50% during a rolling three-year period can potentially limit a company’s future use of NOLs and tax credits. See Part I, Item 1A. Risk Factors – “Our ability to utilize our NOL Carryforwards may be limited” for unaudited additional discussion of this risk. At December 31, 2018, American had an AMT credit carryforward of approximately $452 million available for federal income tax purposes, which is now expected to be fully refundable over the next several years as a result of the repeal of corporate AMT. In 2018, American recorded an income tax provision of $534 million, with an effective rate of approximately 24%, which was substantially non-cash. American’s income tax provision included an $18 million special income tax charge related to an international income tax matter. Substantially all of American’s income before income taxes is attributable to the United States. American is part of the AAG consolidated income tax return. American files its tax returns as prescribed by the tax laws of the jurisdictions in which it operates. American’s 2015 through 2017 tax years are still subject to examination by the Internal Revenue Service. Various state and foreign jurisdiction tax years remain open to examination and American is under examination, in administrative appeals, or engaged in tax litigation in certain jurisdictions. American believes that the effect of any assessments will not be material to its consolidated financial statements. The amount of, and changes to, American’s uncertain tax positions were not material in any of the years presented. American accrues interest and penalties related to unrecognized tax benefits in interest expense and operating expense, respectively. The 2017 Tax Act was enacted on December 22, 2017. The 2017 Tax Act is the most comprehensive tax change in more than 30 years. American has completed its evaluation of the 2017 Tax Act and American has reflected the impact of its effects, including the impact of lower corporate income tax rates (21% vs. 35%) on its deferred tax assets and liabilities and the one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. For the year ended December 31, 2017, American recognized a special income tax provision of $924 million to reflect these impacts of the 2017 Tax Act. |
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- Definition Income Taxes [Line Items] No definition available.
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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Risk Management |
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| Risk Management | Risk Management Our economic prospects are heavily dependent upon two variables we cannot control: the health of the economy and the price of fuel. Due to the discretionary nature of business and leisure travel spending and the highly competitive nature of the airline industry, our revenues are heavily influenced by the condition of the U.S. economy and economies in other regions of the world. Unfavorable conditions in these broader economies have resulted, and may result in the future, in decreased passenger demand for air travel, changes in booking practices and related reactions by our competitors, all of which in turn have had, and may have in the future, a negative effect on our business. In addition, during challenging economic times, actions by our competitors to increase their revenues can have an adverse impact on our revenues. Our operating results are materially impacted by changes in the availability, price volatility and cost of aircraft fuel, which represents one of the largest single cost items in our business. Market prices for jet fuel have fluctuated substantially over the past several years and prices continue to be highly volatile. Because of the amount of fuel needed to operate our business, even a relatively small increase or decrease in the price of fuel can have a material effect on our operating results and liquidity. These additional factors could impact our results of operations, financial performance and liquidity: (a) Credit Risk Most of our receivables relate to tickets sold to individual passengers through the use of major credit cards or to tickets sold by other airlines and used by passengers on American. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. We do not believe we are subject to any significant concentration of credit risk. (b) Interest Rate Risk We have exposure to market risk associated with changes in interest rates related primarily to our variable rate debt obligations. Interest rates on $9.9 billion principal amount of long-term debt as of December 31, 2018 are subject to adjustment to reflect changes in floating interest rates. The weighted average effective interest rate on our variable rate debt was 4.3% at December 31, 2018. We do not currently have an interest rate hedge program. (c) Foreign Currency Risk We are exposed to the effect of foreign exchange rate fluctuations on the U.S. dollar value of foreign currency-denominated operating revenues and expenses. Our largest exposure comes from the British pound, Euro, Canadian dollar and various Latin American currencies, primarily the Brazilian real. We do not currently have a foreign currency hedge program. See Part I, Item 1A. Risk Factors – “We operate a global business with international operations that are subject to economic and political instability and have been, and in the future may continue to be, adversely affected by numerous events, circumstances or government actions beyond our control” for unaudited additional discussion of this risk. |
| American Airlines, Inc. [Member] | |
| Debt Instrument [Line Items] | |
| Risk Management | Risk Management American’s economic prospects are heavily dependent upon two variables it cannot control: the health of the economy and the price of fuel. Due to the discretionary nature of business and leisure travel spending and the highly competitive nature of the airline industry, American’s revenues are heavily influenced by the condition of the U.S. economy and economies in other regions of the world. Unfavorable conditions in these broader economies have resulted, and may result in the future, in decreased passenger demand for air travel, changes in booking practices and related reactions by American’s competitors, all of which in turn have had, and may have in the future, a negative effect on American’s business. In addition, during challenging economic times, actions by its competitors to increase their revenues can have an adverse impact on American’s revenues. American’s operating results are materially impacted by changes in the availability, price volatility and cost of aircraft fuel, which represents one of the largest single cost items in American’s business. Market prices for jet fuel have fluctuated substantially over the past several years and prices continue to be highly volatile. Because of the amount of fuel needed to operate American’s business, even a relatively small increase or decrease in the price of fuel can have a material effect on American’s operating results and liquidity. These additional factors could impact American’s results of operations, financial performance and liquidity: (a) Credit Risk Most of American’s receivables relate to tickets sold to individual passengers through the use of major credit cards or to tickets sold by other airlines and used by passengers on American. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. American does not believe it is subject to any significant concentration of credit risk. (b) Interest Rate Risk American has exposure to market risk associated with changes in interest rates related primarily to its variable rate debt obligations. Interest rates on $9.9 billion principal amount of long-term debt as of December 31, 2018 are subject to adjustment to reflect changes in floating interest rates. The weighted average effective interest rate on American’s variable rate debt was 4.3% at December 31, 2018. American does not currently have an interest rate hedge program. (c) Foreign Currency Risk American is exposed to the effect of foreign exchange rate fluctuations on the U.S. dollar value of foreign currency-denominated operating revenues and expenses. American’s largest exposure comes from the British pound, Euro, Canadian dollar and various Latin American currencies, primarily the Brazilian real. American does not currently have a foreign currency hedge program. See Part I, Item 1A. Risk Factors – “We operate a global business with international operations that are subject to economic and political instability and have been, and in the future may continue to be, adversely affected by numerous events, circumstances or government actions beyond our control” for unaudited additional discussion of this risk. |
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- Definition Risk Management [Disclosure Text Block] No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Fair Value Measurements and Other Investments |
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements and Other Investments | Fair Value Measurements and Other Investments Assets Measured at Fair Value on a Recurring Basis Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability (i.e. an exit price) on the measurement date in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability. Accounting standards include disclosure requirements around fair values used for certain financial instruments and establish a fair value hierarchy. The hierarchy prioritizes valuation inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of three levels:
When available, we use quoted market prices to determine the fair value of our financial assets. If quoted market prices are not available, we measure fair value using valuation techniques that use, when possible, current market-based or independently-sourced market parameters, such as interest rates and currency rates. We utilize the market approach to measure fair value for our financial assets. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets. Our short-term investments classified as Level 2 primarily utilize broker quotes in a non-active market for valuation of these securities. No changes in valuation techniques or inputs occurred during the year ended December 31, 2018. Assets measured at fair value on a recurring basis are summarized below (in millions):
Fair Value of Debt The fair value of our long-term debt was estimated using quoted market prices or discounted cash flow analyses, based on our current estimated incremental borrowing rates for similar types of borrowing arrangements. If our long-term debt was measured at fair value, it would have been classified as Level 2 in the fair value hierarchy. The carrying value and estimated fair value of our long-term debt, including current maturities, were as follows (in millions):
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements and Other Investments | Fair Value Measurements and Other Investments Assets Measured at Fair Value on a Recurring Basis Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability (i.e. an exit price) on the measurement date in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability. Accounting standards include disclosure requirements around fair values used for certain financial instruments and establish a fair value hierarchy. The hierarchy prioritizes valuation inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of three levels:
When available, American uses quoted market prices to determine the fair value of its financial assets. If quoted market prices are not available, American measures fair value using valuation techniques that use, when possible, current market-based or independently-sourced market parameters, such as interest rates and currency rates. American utilizes the market approach to measure fair value for its financial assets. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets. American’s short-term investments classified as Level 2 primarily utilize broker quotes in a non-active market for valuation of these securities. No changes in valuation techniques or inputs occurred during the year ended December 31, 2018. Assets measured at fair value on a recurring basis are summarized below (in millions):
Fair Value of Debt The fair value of American’s long-term debt was estimated using quoted market prices or discounted cash flow analyses, based on American’s current estimated incremental borrowing rates for similar types of borrowing arrangements. If American’s long-term debt was measured at fair value, it would have been classified as Level 2 in the fair value hierarchy. The carrying value and estimated fair value of American’s long-term debt, including current maturities, were as follows (in millions):
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Employee Benefit Plans |
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| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefit Plans | Employee Benefit Plans We sponsor defined benefit and defined contribution pension plans for eligible employees. The defined benefit pension plans provide benefits for participating employees based on years of service and average compensation for a specified period of time before retirement. Effective November 1, 2012, substantially all of our defined benefit pension plans were frozen and we began providing enhanced benefits under our defined contribution pension plans for certain employee groups. We use a December 31 measurement date for all of our defined benefit pension plans. We also provide certain retiree medical and other postretirement benefits, including health care and life insurance benefits, to retired employees. Effective November 1, 2012, we modified our retiree medical and other postretirement benefits plans to eliminate the company subsidy for employees who retire on or after November 1, 2012. As a result of modifications to our retiree medical and other postretirement benefits plans in 2012, we recognized a negative plan amendment of $1.9 billion, which is included as a component of prior service benefit in accumulated other comprehensive income (loss) (AOCI) and will be amortized over the future service life of the active plan participants for whom the benefit was eliminated, or approximately eight years. As of December 31, 2018, $390 million of prior service benefit remains to be amortized. Benefit Obligations, Fair Value of Plan Assets and Funded Status The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2018 and 2017:
Balance Sheet Position
Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
Net Periodic Benefit Cost (Income)
The components of net periodic benefit income other than the service cost component are included in nonoperating other income, net in our consolidated statements of operations. The estimated amount of unrecognized actuarial net loss and prior service cost for the defined benefit pension plans that will be amortized from AOCI into net periodic benefit cost over the next fiscal year is $181 million. The estimated amount of unrecognized actuarial net gain and prior service benefit for the retiree medical and other postretirement benefits plans that will be amortized from AOCI into net periodic benefit cost over the next fiscal year is $269 million. Assumptions The following actuarial assumptions were used to determine our benefit obligations and net periodic benefit cost for the periods presented:
As of December 31, 2018, our estimate of the long-term rate of return on plan assets was 8% based on the target asset allocation. Expected returns on long duration bonds are based on yields to maturity of the bonds held at year-end. Expected returns on other assets are based on a combination of long-term historical returns, actual returns on plan assets achieved over the last ten years, current and expected market conditions, and expected value to be generated through active management and securities lending programs. A one percentage point change in the assumed health care cost trend rates would have the following effects on our retiree medical and other postretirement benefits plans (in millions):
Minimum Contributions We are required to make minimum contributions to our defined benefit pension plans under the minimum funding requirements of the Employee Retirement Income Security Act of 1974 (ERISA) and various other laws for U.S. based plans as well as underfunding rules specific to countries where we maintain defined benefit plans. Based on current funding assumptions, we have minimum required contributions of $786 million for 2019 including contributions to defined benefit plans for our wholly-owned regional subsidiaries. We expect to make supplemental contributions of $21 million to our U.S. based defined benefit pension plans in 2019. Our funding obligations will depend on the performance of our investments held in trust by the pension plans, interest rates for determining liabilities, the amount of and timing of any supplemental contributions and our actuarial experience. Benefit Payments The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
Plan Assets The objectives of our investment policies are to: maintain sufficient income and liquidity to pay retirement benefits; produce a long-term rate of return that meets or exceeds the assumed rate of return for plan assets; limit the volatility of asset performance and funded status; and diversify assets among asset classes and investment managers. Based on these investment objectives, a long-term strategic asset allocation has been established. This strategic allocation seeks to balance the potential benefit of improving funded position with the potential risk that the funded position would decline. The current strategic target asset allocation is as follows:
Public equity as well as high yield and emerging market fixed income securities are used to provide diversification and are expected to generate higher returns over the long-term than U.S. long duration bonds. Public stocks are managed using a value investment approach in order to participate in the returns generated by stocks in the long-term, while reducing year-over-year volatility. U.S. long duration bonds are used to partially hedge the assets from declines in interest rates. Alternative (private) investments are used to provide expected returns in excess of the public markets over the long-term. The pension plan’s master trust also participates in securities lending programs to generate additional income by loaning plan assets to borrowers on a fully collateralized basis. These programs are subject to market risk. Investments in securities traded on recognized securities exchanges are valued at the last reported sales price on the last business day of the year. Securities traded in the over-the-counter market are valued at the last bid price. The money market fund is valued at fair value which represents the net asset value of the shares of such fund as of the close of business at the end of the period. Investments in limited partnerships are carried at estimated net asset value as determined by and reported by the general partners of the partnerships and represent the proportionate share of the estimated fair value of the underlying assets of the limited partnerships. Common/collective trusts are valued at net asset value based on the fair values of the underlying investments of the trusts as determined by the sponsor of the trusts. The pension plan’s master trust also invests in a 103-12 investment entity (the 103-12 Investment Trust) which is designed to invest plan assets of more than one unrelated employer. The 103-12 Investment Trust is valued at net asset value which is determined by the issuer at the end of each month and is based on the aggregate fair value of trust assets less liabilities, divided by the number of units outstanding. No changes in valuation techniques or inputs occurred during the year. Benefit Plan Assets Measured at Fair Value on a Recurring Basis The fair value of our pension plan assets at December 31, 2018 and 2017, by asset category, are as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2018, were as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2017, were as follows (in millions):
The fair value of our retiree medical and other postretirement benefits plans assets at December 31, 2018 by asset category, were as follows (in millions):
The fair value of our retiree medical and other postretirement benefits plans assets at December 31, 2017 by asset category, were as follows (in millions):
Investments in the retiree medical and other postretirement benefits plans’ mutual funds are valued by quoted prices on the active market, which is fair value and represents the net asset value of the shares of such funds as of the close of business at the end of the period. The AAL Class mutual fund restricts trading only to American, resulting in a fair value classification of Level 2. Investments included approximately 30% of investments in non-U.S. common stocks in both 2018 and 2017. Net asset value is based on the fair market value of the funds’ underlying assets and liabilities at the date of determination. Defined Contribution Plans We contributed $877 million, $851 million and $766 million to our defined contribution plans for the years ended December 31, 2018, 2017 and 2016, respectively. Profit Sharing Program We accrue 5% of our pre-tax income excluding special items for our profit sharing program. For the year ended December 31, 2018, we accrued $175 million for this program, which will be distributed to employees in the first quarter of 2019. |
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| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefit Plans | Employee Benefit Plans American sponsors defined benefit and defined contribution pension plans for eligible employees. The defined benefit pension plans provide benefits for participating employees based on years of service and average compensation for a specified period of time before retirement. Effective November 1, 2012, substantially all of American’s defined benefit pension plans were frozen and American began providing enhanced benefits under its defined contribution pension plans for certain employee groups. American uses a December 31 measurement date for all of its defined benefit pension plans. American also provides certain retiree medical and other postretirement benefits, including health care and life insurance benefits, to retired employees. Effective November 1, 2012, American modified its retiree medical and other postretirement benefits plans to eliminate the company subsidy for employees who retire on or after November 1, 2012. As a result of modifications to its retiree medical and other postretirement benefits plans in 2012, American recognized a negative plan amendment of $1.9 billion, which is included as a component of prior service benefit in accumulated other comprehensive income (loss) (AOCI) and will be amortized over the future service life of the active plan participants for whom the benefit was eliminated, or approximately eight years. As of December 31, 2018, $390 million of prior service benefit remains to be amortized. Benefit Obligations, Fair Value of Plan Assets and Funded Status The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2018 and 2017:
Balance Sheet Position
Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
Net Periodic Benefit Cost (Income)
The components of net periodic benefit income other than the service cost component are included in nonoperating other income, net in American’s consolidated statements of operations. The estimated amount of unrecognized actuarial net loss and prior service cost for the defined benefit pension plans that will be amortized from AOCI into net periodic benefit cost over the next fiscal year is $181 million. The estimated amount of unrecognized actuarial net gain and prior service benefit for the retiree medical and other postretirement benefits plans that will be amortized from AOCI into net periodic benefit cost over the next fiscal year is $269 million. Assumptions The following actuarial assumptions were used to determine American’s benefit obligations and net periodic benefit cost for the periods presented:
As of December 31, 2018, American’s estimate of the long-term rate of return on plan assets was 8% based on the target asset allocation. Expected returns on long duration bonds are based on yields to maturity of the bonds held at year-end. Expected returns on other assets are based on a combination of long-term historical returns, actual returns on plan assets achieved over the last ten years, current and expected market conditions, and expected value to be generated through active management and securities lending programs. A one percentage point change in the assumed health care cost trend rates would have the following effects on American’s retiree medical and other postretirement benefits plans (in millions):
Minimum Contributions American is required to make minimum contributions to its defined benefit pension plans under the minimum funding requirements of the Employee Retirement Income Security Act of 1974 (ERISA) and various other laws for U.S. based plans as well as underfunding rules specific to countries where American maintains defined benefit plans. Based on current funding assumptions, American has minimum required contributions of $780 million for 2019. American expects to make supplemental contributions of $21 million to its U.S. based defined benefit pension plans in 2019. American’s funding obligations will depend on the performance of American’s investments held in trust by the pension plans, interest rates for determining liabilities, the amount of and timing of any supplemental contributions and American’s actuarial experience. Benefit Payments The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
Plan Assets The objectives of American’s investment policies are to: maintain sufficient income and liquidity to pay retirement benefits; produce a long-term rate of return that meets or exceeds the assumed rate of return for plan assets; limit the volatility of asset performance and funded status; and diversify assets among asset classes and investment managers. Based on these investment objectives, a long-term strategic asset allocation has been established. This strategic allocation seeks to balance the potential benefit of improving funded position with the potential risk that the funded position would decline. The current strategic target asset allocation is as follows:
Public equity as well as high yield and emerging market fixed income securities are used to provide diversification and are expected to generate higher returns over the long-term than U.S. long duration bonds. Public stocks are managed using a value investment approach in order to participate in the returns generated by stocks in the long-term, while reducing year-over-year volatility. U.S. long duration bonds are used to partially hedge the assets from declines in interest rates. Alternative (private) investments are used to provide expected returns in excess of the public markets over the long-term. The pension plan’s master trust also participates in securities lending programs to generate additional income by loaning plan assets to borrowers on a fully collateralized basis. These programs are subject to market risk. Investments in securities traded on recognized securities exchanges are valued at the last reported sales price on the last business day of the year. Securities traded in the over-the-counter market are valued at the last bid price. The money market fund is valued at fair value which represents the net asset value of the shares of such fund as of the close of business at the end of the period. Investments in limited partnerships are carried at estimated net asset value as determined by and reported by the general partners of the partnerships and represent the proportionate share of the estimated fair value of the underlying assets of the limited partnerships. Common/collective trusts are valued at net asset value based on the fair values of the underlying investments of the trusts as determined by the sponsor of the trusts. The pension plan’s master trust also invests in a 103-12 investment entity (the 103-12 Investment Trust) which is designed to invest plan assets of more than one unrelated employer. The 103-12 Investment Trust is valued at net asset value which is determined by the issuer at the end of each month and is based on the aggregate fair value of trust assets less liabilities, divided by the number of units outstanding. No changes in valuation techniques or inputs occurred during the year. Benefit Plan Assets Measured at Fair Value on a Recurring Basis The fair value of American’s pension plan assets at December 31, 2018 and 2017, by asset category, are as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2018, were as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2017, were as follows (in millions):
The fair value of American’s retiree medical and other postretirement benefits plans assets at December 31, 2018 by asset category, were as follows (in millions):
The fair value of American’s retiree medical and other postretirement benefits plans assets at December 31, 2017 by asset category, were as follows (in millions):
Investments in the retiree medical and other postretirement benefits plans’ mutual funds are valued by quoted prices on the active market, which is fair value and represents the net asset value of the shares of such funds as of the close of business at the end of the period. The AAL Class mutual fund restricts trading only to American, resulting in a fair value classification of Level 2. Investments included approximately 30% of investments in non-U.S. common stocks in both 2018 and 2017. Net asset value is based on the fair market value of the funds’ underlying assets and liabilities at the date of determination. Defined Contribution Plans American contributed $856 million, $844 million and $761 million to its defined contribution plans for the years ended December 31, 2018, 2017 and 2016, respectively. Profit Sharing Program American accrues 5% of its pre-tax income excluding special items for its profit sharing program. For the year ended December 31, 2018, American accrued $175 million for this program, which will be distributed to employees in the first quarter of 2019. |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Accumulated Other Comprehensive Loss |
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| Accumulated Other Comprehensive Loss | Accumulated Other Comprehensive Loss The components of AOCI are as follows (in millions):
Reclassifications out of AOCI for the years ended December 31, 2018 and 2017 are as follows (in millions):
Amounts allocated to other comprehensive income (OCI) for income taxes as further described in Note 7 will remain in AOCI until we cease all related activities, such as termination of the pension plan. |
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| Accumulated Other Comprehensive Loss | Accumulated Other Comprehensive Loss The components of AOCI are as follows (in millions):
Reclassifications out of AOCI for the years ended December 31, 2018 and 2017 are as follows (in millions):
Amounts allocated to other comprehensive income (OCI) for income taxes as further described in Note 5 will remain in AOCI until American ceases all related activities, such as termination of the pension plan. |
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Commitments, Contingencies and Guarantees |
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| Commitments, Contingencies and Guarantees | Commitments, Contingencies and Guarantees (a) Aircraft, Engine and Other Purchase Commitments Under all of our aircraft and engine purchase agreements, our total future commitments as of December 31, 2018 are expected to be as follows (approximately, in millions):
Additionally, we have purchase commitments related to jet fuel, construction projects and information technology support as follows (approximately): $1.9 billion in 2019, $1.1 billion in 2020, $1.0 billion in 2021, $32 million in 2022 and $7 million in 2023. (b) Capacity Purchase Agreements with Third-Party Regional Carriers American has capacity purchase agreements with third-party regional carriers. The capacity purchase agreements provide that all revenues, including passenger, in-flight, ancillary, mail and freight revenues, go to American. In return, American agrees to pay predetermined fees to these airlines for operating an agreed-upon number of aircraft, without regard to the number of passengers on board. In addition, these agreements provide that American either reimburses or pays 100% of certain variable costs, such as airport landing fees, fuel and passenger liability insurance. American controls marketing, scheduling, ticketing, pricing and seat inventories. As of December 31, 2018, American’s capacity purchase agreements with third-party regional carriers had expiration dates ranging from 2019 to 2027, with rights of American to extend the respective terms of certain agreements. See Part I, Item 2. Properties for unaudited information on the aircraft operated by third-party regional carriers under such capacity purchase agreements. As of December 31, 2018, American’s minimum fixed obligations under its capacity purchase agreements with third-party regional carriers are as follows (approximately, in millions):
(c) Airport Redevelopment Los Angeles International Airport (LAX) In 2018, we executed a lease agreement with Los Angeles World Airports (LAWA), which owns and operates LAX, in connection with a $1.6 billion modernization project related to LAX Terminals 4 and 5. Construction will occur in a phased approach, which started in October 2018 and is expected to be completed in 2028. The modernization project will include a unified departure hall to combine the entranceway of Terminals 4 and 5, reconfigured ticket counter and check-in areas with seamless access to security screening areas, 16 security screening lanes with automated technology and upgraded amenities at gate areas. The project will also include renovated break rooms, multi-use meeting rooms and team gathering spaces throughout the terminals to support our team members at LAX. We are managing this project and have legal title to the assets during their construction. As each phase is completed, the assets will be sold and transferred to LAWA, including the site improvements and non-proprietary improvements. As we control the assets during construction, they are recognized on our balance sheet until legal title has transferred. For 2018, we incurred approximately $7 million in costs relating to the LAX modernization project, which are included within operating property and equipment on our consolidated balance sheet as of December 31, 2018. (d) Off-Balance Sheet Arrangements Aircraft American currently operates 389 owned aircraft and 88 leased aircraft which were financed with EETCs issued by pass-through trusts. These trusts are off-balance sheet entities, the primary purpose of which is to finance the acquisition of flight equipment. Rather than finance each aircraft separately when such aircraft is purchased, delivered or refinanced, these trusts allow American to raise the financing for a number of aircraft at one time and, if applicable, place such funds in escrow pending a future purchase, delivery or refinancing of the relevant aircraft. The trusts were also structured to provide for certain credit enhancements, such as liquidity facilities to cover certain interest payments, that reduce the risks to the purchasers of the trust certificates and, as a result, reduce the cost of aircraft financing to American. Each trust covers a set number of aircraft scheduled to be delivered or refinanced upon the issuance of the EETC or within a specific period of time thereafter. At the time of each covered aircraft financing, the relevant trust used the proceeds of the issuance of the EETC (which may have been available at the time of issuance thereof or held in escrow until financing of the applicable aircraft following its delivery) to purchase equipment notes relating to the financed aircraft. The equipment notes are issued, at American’s election, in connection with a mortgage financing of the aircraft or, in certain cases, by a separate owner trust in connection with a leveraged lease financing of the aircraft. In the case of a leveraged lease financing, the owner trust then leases the aircraft to American. In both cases, the equipment notes are secured by a security interest in the aircraft. The pass-through trust certificates are not direct obligations of, nor are they guaranteed by, AAG or American. However, in the case of mortgage financings, the equipment notes issued to the trusts are direct obligations of American and, in certain instances, have been guaranteed by AAG. As of December 31, 2018, $11.6 billion associated with these mortgage financings is reflected as debt in the accompanying consolidated balance sheet. With respect to leveraged leases, American evaluated whether the leases had characteristics of a variable interest entity. American concluded the leasing entities met the criteria for variable interest entities. American generally is not the primary beneficiary of the leasing entities if the lease terms are consistent with market terms at the inception of the lease and do not include a residual value guarantee, fixed-price purchase option or similar feature that obligates American to absorb decreases in value or entitles American to participate in increases in the value of the aircraft. American does not provide residual value guarantees to the bondholders or equity participants in the trusts. Some leases have a fair market value or a fixed price purchase option that allows American to purchase the aircraft at or near the end of the lease term. However, the option price approximates an estimate of the aircraft’s fair value at the option date. Under this feature, American does not participate in any increases in the value of the aircraft. American concluded it is not the primary beneficiary under these arrangements. Therefore, American accounts for the majority of its EETC leveraged lease financings as operating leases. American’s total future payments to the trusts of each of the relevant EETCs under these leveraged lease financings are $352 million as of December 31, 2018, which are reflected in the operating lease obligations in Note 6. Letters of Credit and Other We provide financial assurance, such as letters of credit, surety bonds or restricted cash and investments, primarily to support projected workers’ compensation obligations and airport commitments. As of December 31, 2018, we had $460 million of letters of credit and surety bonds securing various obligations. The letters of credit and surety bonds that are subject to expiration will expire on various dates through 2022. (e) Legal Proceedings Chapter 11 Cases. On November 29, 2011, AMR, American, and certain of AMR’s other direct and indirect domestic subsidiaries (the Debtors) filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of New York (the Bankruptcy Court). On October 21, 2013, the Bankruptcy Court entered an order approving and confirming the Debtors’ fourth amended joint plan of reorganization (as amended, the Plan). On the Effective Date, December 9, 2013, the Debtors consummated their reorganization pursuant to the Plan and completed the Merger. Pursuant to rulings of the Bankruptcy Court, the Plan established the Disputed Claims Reserve to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the Disputed Claims Reserve were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported from time to time in our quarterly and annual reports, including for purposes of calculating earnings per share. As disputed claims are resolved, the claimants will receive distributions of shares from the Disputed Claims Reserve. However, we are not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the Disputed Claims Reserve are not sufficient to fully pay any additional allowed unsecured claims. To the extent that any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to us but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. On February 12, 2019, in accordance with the approval granted by the Bankruptcy Court on December 6, 2018, an aggregate of approximately 17.3 million shares of AAG common stock were distributed from the Disputed Claims Reserve to former AMR shareholders and convertible noteholders. After giving effect to this distribution, the Disputed Claims Reserve holds approximately 7.2 million shares of AAG common stock. Private Party Antitrust Action Related to Passenger Capacity. We, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, have been named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits have been consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, we reached a preliminary settlement agreement with the plaintiffs in the amount of $45 million that, once approved, will resolve all claims in the U.S. lawsuits. That settlement received preliminary approval from the DC Court on June 18, 2018. Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the United States Bankruptcy Court for the Southern District of New York. The complaint named as defendants US Airways Group, US Airways, AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. A bench trial is presently scheduled for March 2019. We believe this lawsuit is without merit and intend to vigorously defend against the allegations. DOJ Investigation Related to the United States Postal Service. In April 2015, the Department of Justice (DOJ) informed us of an inquiry regarding American’s 2009 and 2011 contracts with the United States Postal Service for the international transportation of mail by air. In October 2015, we received a Civil Investigative Demand from the DOJ seeking certain information relating to these contracts and the DOJ has also sought information concerning certain of the airlines that transport mail on a codeshare basis. The DOJ has indicated it is investigating potential violations of the False Claims Act or other statutes. We are cooperating fully with the DOJ with regard to its investigation. General. In addition to the specifically identified legal proceedings, we and our subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within our control. Therefore, although we will vigorously defend ourselves in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on us are uncertain but could be material. See Part I, Item 1A. Risk Factors –“We may be a party to litigation in the normal course of business or otherwise, which could affect our financial position and liquidity” for additional discussion. (f) Guarantees and Indemnifications We are party to many routine contracts in which we provide general indemnities in the normal course of business to third parties for various risks. We are not able to estimate the potential amount of any liability resulting from the indemnities. These indemnities are discussed in the following paragraphs. In our aircraft financing agreements, we generally indemnify the financing parties, trustees acting on their behalf and other relevant parties against liabilities (including certain taxes) resulting from the financing, manufacture, design, ownership, operation and maintenance of the aircraft regardless of whether these liabilities (including certain taxes) relate to the negligence of the indemnified parties. Our loan agreements and other LIBOR-based financing transactions (including certain leveraged aircraft leases) generally obligate us to reimburse the applicable lender for incremental costs due to a change in law that imposes (i) any reserve or special deposit requirement against assets of, deposits with or credit extended by such lender related to the loan, (ii) any tax, duty or other charge with respect to the loan (except standard income tax) or (iii) capital adequacy requirements. In addition, our loan agreements and other financing arrangements typically contain a withholding tax provision that requires us to pay additional amounts to the applicable lender or other financing party, generally if withholding taxes are imposed on such lender or other financing party as a result of a change in the applicable tax law. In certain transactions, including certain aircraft financing leases and loans, the lessors, lenders and/or other parties have rights to terminate the transaction based on changes in foreign tax law, illegality or certain other events or circumstances. In such a case, we may be required to make a lump sum payment to terminate the relevant transaction. We have general indemnity clauses in many of our airport and other real estate leases where we as lessee indemnify the lessor (and related parties) against liabilities related to our use of the leased property. Generally, these indemnifications cover liabilities resulting from the negligence of the indemnified parties, but not liabilities resulting from the gross negligence or willful misconduct of the indemnified parties. In addition, we provide environmental indemnities in many of these leases for contamination related to our use of the leased property. Under certain contracts with third parties, we indemnify the third-party against legal liability arising out of an action by the third-party, or certain other parties. The terms of these contracts vary and the potential exposure under these indemnities cannot be determined. We have liability insurance protecting us for some of the obligations we have undertaken under these indemnities. American is required to make principal and interest payments for certain special facility revenue bonds issued by municipalities primarily to build or improve airport facilities and purchase equipment, which are leased to American. The payment of principal and interest of certain special facility revenue bonds is guaranteed by AAG. As of December 31, 2018, the remaining lease payments through 2035 guaranteeing the principal and interest on these bonds are $588 million and the current carrying amount of the associated operating lease liability in the accompanying consolidated balance sheet is $321 million. As of December 31, 2018, AAG had issued guarantees covering approximately $769 million principal amount of American’s special facility revenue bonds (and interest thereon) and $8.4 billion principal amount of American’s secured debt (and interest thereon), including the Credit Facilities and certain EETC financings. (g) Credit Card Processing Agreements We have agreements with companies that process customer credit card transactions for the sale of air travel and other services. Our agreements allow these credit card processing companies, under certain conditions, to hold an amount of our cash (referred to as a holdback) equal to a portion of advance ticket sales that have been processed by that company, but for which we have not yet provided the air transportation. Additional holdback requirements in the event of material adverse changes in our financial condition will reduce our liquidity in the form of unrestricted cash by the amount of the holdbacks. These credit card processing companies are not currently entitled to maintain any holdbacks pursuant to these requirements. (h) Labor Negotiations As of December 31, 2018, we employed approximately 128,900 active full-time equivalent employees, of which 26,000 were employed by our regional operations. Approximately 84% of employees are covered by collective bargaining agreements (CBAs) with various labor unions and approximately 22% of employees are covered by CBAs that will become amendable within one year. Negotiations are continuing for joint collective bargaining agreements (JCBAs) covering our mainline maintenance, fleet service, stock clerks, maintenance control technicians and maintenance training instructors as well as for CBAs covering certain employee groups at our wholly-owned regional subsidiaries. Additionally, the post-Merger JCBAs covering our pilots and flight attendants, while not yet amendable, provide the unions with the right to elect to commence negotiations for new collective bargaining agreements in advance of each JCBA’s amendable date. Each of the unions has exercised these rights and negotiations are underway for new agreements as described in Part I, Item 1. Business - “Employees and Labor Relations”. There is no assurance that a successful or timely resolution of these labor negotiations will be achieved. |
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| Commitments, Contingencies and Guarantees | Commitments, Contingencies and Guarantees (a) Aircraft, Engine and Other Purchase Commitments Under all of American’s aircraft and engine purchase agreements, its total future commitments as of December 31, 2018 are expected to be as follows (approximately, in millions):
Additionally, American has purchase commitments related to jet fuel, construction projects and information technology support as follows (approximately): $1.9 billion in 2019, $1.1 billion in 2020, $1.0 billion in 2021, $32 million in 2022 and $7 million in 2023. (b) Capacity Purchase Agreements with Third-Party Regional Carriers American has capacity purchase agreements with third-party regional carriers. The capacity purchase agreements provide that all revenues, including passenger, in-flight, ancillary, mail and freight revenues, go to American. In return, American agrees to pay predetermined fees to these airlines for operating an agreed-upon number of aircraft, without regard to the number of passengers on board. In addition, these agreements provide that American either reimburses or pays 100% of certain variable costs, such as airport landing fees, fuel and passenger liability insurance. American controls marketing, scheduling, ticketing, pricing and seat inventories. As of December 31, 2018, American’s capacity purchase agreements with third-party regional carriers had expiration dates ranging from 2019 to 2027, with rights of American to extend the respective terms of certain agreements. See Part I, Item 2. Properties for unaudited information on the aircraft operated by third-party regional carriers under such capacity purchase agreements. As of December 31, 2018, American’s minimum fixed obligations under its capacity purchase agreements with third-party regional carriers are as follows (approximately, in millions):
(c) Airport Redevelopment Los Angeles International Airport (LAX) In 2018, American executed a lease agreement with Los Angeles World Airports (LAWA), which owns and operates LAX, in connection with a $1.6 billion modernization project related to LAX Terminals 4 and 5. Construction will occur in a phased approach, which started in October 2018 and is expected to be completed in 2028. The modernization project will include a unified departure hall to combine the entranceway of Terminals 4 and 5, reconfigured ticket counter and check-in areas with seamless access to security screening areas, 16 security screening lanes with automated technology and upgraded amenities at gate areas. The project will also include renovated break rooms, multi-use meeting rooms and team gathering spaces throughout the terminals to support American’s team members at LAX. American is managing this project and has legal title to the assets during their construction. As each phase is completed, the assets will be sold and transferred to LAWA, including the site improvements and non-proprietary improvements. As American controls the assets during construction, they are recognized on its balance sheet until legal title has transferred. For 2018, American incurred approximately $7 million in costs relating to the LAX modernization project, which are included within operating property and equipment on its consolidated balance sheet as of December 31, 2018. (d) Off-Balance Sheet Arrangements Aircraft American currently operates 389 owned aircraft and 88 leased aircraft which were financed with EETCs issued by pass-through trusts. These trusts are off-balance sheet entities, the primary purpose of which is to finance the acquisition of flight equipment. Rather than finance each aircraft separately when such aircraft is purchased, delivered or refinanced, these trusts allow American to raise the financing for a number of aircraft at one time and, if applicable, place such funds in escrow pending a future purchase, delivery or refinancing of the relevant aircraft. The trusts were also structured to provide for certain credit enhancements, such as liquidity facilities to cover certain interest payments, that reduce the risks to the purchasers of the trust certificates and, as a result, reduce the cost of aircraft financing to American. Each trust covers a set number of aircraft scheduled to be delivered or refinanced upon the issuance of the EETC or within a specific period of time thereafter. At the time of each covered aircraft financing, the relevant trust used the proceeds of the issuance of the EETC (which may have been available at the time of issuance thereof or held in escrow until financing of the applicable aircraft following its delivery) to purchase equipment notes relating to the financed aircraft. The equipment notes are issued, at American’s election, in connection with a mortgage financing of the aircraft or, in certain cases, by a separate owner trust in connection with a leveraged lease financing of the aircraft. In the case of a leveraged lease financing, the owner trust then leases the aircraft to American. In both cases, the equipment notes are secured by a security interest in the aircraft. The pass-through trust certificates are not direct obligations of, nor are they guaranteed by, AAG or American. However, in the case of mortgage financings, the equipment notes issued to the trusts are direct obligations of American and, in certain instances, have been guaranteed by AAG. As of December 31, 2018, $11.6 billion associated with these mortgage financings is reflected as debt in the accompanying consolidated balance sheet. With respect to leveraged leases, American evaluated whether the leases had characteristics of a variable interest entity. American concluded the leasing entities met the criteria for variable interest entities. American generally is not the primary beneficiary of the leasing entities if the lease terms are consistent with market terms at the inception of the lease and do not include a residual value guarantee, fixed-price purchase option or similar feature that obligates American to absorb decreases in value or entitles American to participate in increases in the value of the aircraft. American does not provide residual value guarantees to the bondholders or equity participants in the trusts. Some leases have a fair market value or a fixed price purchase option that allows American to purchase the aircraft at or near the end of the lease term. However, the option price approximates an estimate of the aircraft’s fair value at the option date. Under this feature, American does not participate in any increases in the value of the aircraft. American concluded it is not the primary beneficiary under these arrangements. Therefore, American accounts for the majority of its EETC leveraged lease financings as operating leases. American’s total future payments to the trusts of each of the relevant EETCs under these leveraged lease financings are $352 million as of December 31, 2018, which are reflected in the operating lease obligations in Note 4. Letters of Credit and Other American provides financial assurance, such as letters of credit, surety bonds or restricted cash and investments, primarily to support projected workers’ compensation obligations and airport commitments. As of December 31, 2018, American had $460 million of letters of credit and surety bonds securing various obligations. The letters of credit and surety bonds that are subject to expiration will expire on various dates through 2022. (e) Legal Proceedings Chapter 11 Cases. On November 29, 2011, AMR, American, and certain of AMR’s other direct and indirect domestic subsidiaries (the Debtors) filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the Southern District of New York (the Bankruptcy Court). On October 21, 2013, the Bankruptcy Court entered an order approving and confirming the Debtors’ fourth amended joint plan of reorganization (as amended, the Plan). On the Effective Date, December 9, 2013, the Debtors consummated their reorganization pursuant to the Plan and completed the Merger. Pursuant to rulings of the Bankruptcy Court, the Plan established the Disputed Claims Reserve to hold shares of AAG common stock reserved for issuance to disputed claimholders at the Effective Date that ultimately become holders of allowed claims. The shares of AAG common stock issued to the Disputed Claims Reserve were originally issued on December 13, 2013 and have at all times since been included in the number of shares issued and outstanding as reported by AAG from time to time in its quarterly and annual reports, including for purposes of calculating earnings per share. As disputed claims are resolved, the claimants will receive distributions of shares from the Disputed Claims Reserve. However, American is not required to distribute additional shares above the limits contemplated by the Plan, even if the shares remaining for distribution in the Disputed Claims Reserve are not sufficient to fully pay any additional allowed unsecured claims. To the extent that any of the reserved shares remain undistributed upon resolution of all remaining disputed claims, such shares will not be returned to AAG but rather will be distributed to former AMR stockholders and former convertible noteholders treated as stockholders under the Plan. On February 12, 2019, in accordance with the approval granted by the Bankruptcy Court on December 6, 2018, an aggregate of approximately 17.3 million shares of AAG common stock were distributed from the Disputed Claims Reserve to former AMR shareholders and convertible noteholders. After giving effect to this distribution, the Disputed Claims Reserve holds approximately 7.2 million shares of AAG common stock. Private Party Antitrust Action Related to Passenger Capacity. American, along with Delta Air Lines, Inc., Southwest Airlines Co., United Airlines, Inc. and, in the case of litigation filed in Canada, Air Canada, have been named as defendants in approximately 100 putative class action lawsuits alleging unlawful agreements with respect to air passenger capacity. The U.S. lawsuits have been consolidated in the Federal District Court for the District of Columbia (the DC Court). On June 15, 2018, American reached a preliminary settlement agreement with the plaintiffs in the amount of $45 million that, once approved, will resolve all claims in the U.S. lawsuits. That settlement received preliminary approval from the DC Court on June 18, 2018. Private Party Antitrust Action Related to the Merger. On August 6, 2013, a lawsuit captioned Carolyn Fjord, et al., v. AMR Corporation, et al., was filed in the United States Bankruptcy Court for the Southern District of New York. The complaint named as defendants US Airways Group, US Airways, AMR and American, alleged that the effect of the Merger may be to create a monopoly in violation of Section 7 of the Clayton Antitrust Act, and sought injunctive relief and/or divestiture. On November 27, 2013, the Bankruptcy Court denied plaintiffs’ motion to preliminarily enjoin the Merger. On August 29, 2018, the Court denied in part defendants' motion for summary judgment, and fully denied plaintiffs' cross-motion for summary judgment. A bench trial is presently scheduled for March 2019. American believes this lawsuit is without merit and intends to vigorously defend against the allegations. DOJ Investigation Related to the United States Postal Service. In April 2015, the Department of Justice (DOJ) informed American of an inquiry regarding American’s 2009 and 2011 contracts with the United States Postal Service for the international transportation of mail by air. In October 2015, American received a Civil Investigative Demand from the DOJ seeking certain information relating to these contracts and the DOJ has also sought information concerning certain of the airlines that transport mail on a codeshare basis. The DOJ has indicated it is investigating potential violations of the False Claims Act or other statutes. American is cooperating fully with the DOJ with regard to its investigation. General. In addition to the specifically identified legal proceedings, American and its subsidiaries are also engaged in other legal proceedings from time to time. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within American’s control. Therefore, although American will vigorously defend itself in each of the actions described above and such other legal proceedings, their ultimate resolution and potential financial and other impacts on American are uncertain but could be material. See Part I, Item 1A. Risk Factors –“We may be a party to litigation in the normal course of business or otherwise, which could affect our financial position and liquidity” for additional discussion. (f) Guarantees and Indemnifications American is a party to many routine contracts in which it provides general indemnities in the normal course of business to third parties for various risks. American is not able to estimate the potential amount of any liability resulting from the indemnities. These indemnities are discussed in the following paragraphs. In its aircraft financing agreements, American generally indemnifies the financing parties, trustees acting on their behalf and other relevant parties against liabilities (including certain taxes) resulting from the financing, manufacture, design, ownership, operation and maintenance of the aircraft regardless of whether these liabilities (including certain taxes) relate to the negligence of the indemnified parties. American’s loan agreements and other LIBOR-based financing transactions (including certain leveraged aircraft leases) generally obligate American to reimburse the applicable lender for incremental costs due to a change in law that imposes (i) any reserve or special deposit requirement against assets of, deposits with or credit extended by such lender related to the loan, (ii) any tax, duty or other charge with respect to the loan (except standard income tax) or (iii) capital adequacy requirements. In addition, American’s loan agreements and other financing arrangements typically contain a withholding tax provision that requires American to pay additional amounts to the applicable lender or other financing party, generally if withholding taxes are imposed on such lender or other financing party as a result of a change in the applicable tax law. In certain transactions, including certain aircraft financing leases and loans, the lessors, lenders and/or other parties have rights to terminate the transaction based on changes in foreign tax law, illegality or certain other events or circumstances. In such a case, American may be required to make a lump sum payment to terminate the relevant transaction. American has general indemnity clauses in many of its airport and other real estate leases where American as lessee indemnifies the lessor (and related parties) against liabilities related to American’s use of the leased property. Generally, these indemnifications cover liabilities resulting from the negligence of the indemnified parties, but not liabilities resulting from the gross negligence or willful misconduct of the indemnified parties. In addition, American provides environmental indemnities in many of these leases for contamination related to American’s use of the leased property. Under certain contracts with third parties, American indemnifies the third-party against legal liability arising out of an action by the third-party, or certain other parties. The terms of these contracts vary and the potential exposure under these indemnities cannot be determined. American has liability insurance protecting American for some of the obligations it has undertaken under these indemnities. American is required to make principal and interest payments for certain special facility revenue bonds issued by municipalities primarily to build or improve airport facilities and purchase equipment, which are leased to American. The payment of principal and interest of certain special facility revenue bonds is guaranteed by American. As of December 31, 2018, the remaining lease payments through 2035 guaranteeing the principal and interest on these bonds are $588 million and the current carrying amount of the associated operating lease liability in the accompanying consolidated balance sheet is $321 million. As of December 31, 2018, American had issued guarantees covering AAG’s $750 million aggregate principal amount of 5.50% senior notes due 2019 and $500 million aggregate principal amount of 4.625% senior notes due 2020. (g) Credit Card Processing Agreements American has agreements with companies that process customer credit card transactions for the sale of air travel and other services. American’s agreements allow these credit card processing companies, under certain conditions, to hold an amount of its cash (referred to as a holdback) equal to a portion of advance ticket sales that have been processed by that company, but for which American has not yet provided the air transportation. Additional holdback requirements in the event of material adverse changes in American’s financial condition will reduce its liquidity in the form of unrestricted cash by the amount of the holdbacks. These credit card processing companies are not currently entitled to maintain any holdbacks pursuant to these requirements. (h) Labor Negotiations As of December 31, 2018, American employed approximately 102,900 active full-time equivalent employees. Approximately 84% of employees are covered by collective bargaining agreements (CBAs) with various labor unions and approximately 24% of employees are covered by CBAs that will become amendable within one year. Negotiations are continuing for joint collective bargaining agreements (JCBAs) covering American’s maintenance, fleet service, stock clerks, maintenance control technicians and maintenance training instructors. Additionally, the post-Merger JCBAs covering American’s pilots and flight attendants, while not yet amendable, provide the unions with the right to elect to commence negotiations for new collective bargaining agreements in advance of each JCBA’s amendable date. Each of the unions has exercised these rights and negotiations are underway for new agreements as described in Part I, Item 1. Business - “Employees and Labor Relations”. There is no assurance that a successful or timely resolution of these labor negotiations will be achieved. |
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Supplemental Cash Flow Information |
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| Supplemental Cash Flow Information | Supplemental Cash Flow Information Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
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| Supplemental Cash Flow Information | Supplemental Cash Flow Information Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
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Operating Segments and Related Disclosures |
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| Segment Reporting Information [Line Items] | |
| Operating Segments and Related Disclosures | Operating Segments and Related Disclosures We are managed as a single business unit that provides air transportation for passengers and cargo. This allows us to benefit from an integrated revenue pricing and route network that includes American and our wholly-owned and third-party regional carriers that fly under capacity purchase agreements operating as American Eagle. The flight equipment of all these carriers is combined to form one fleet that is deployed through a single route scheduling system. Financial information and annual operational plans and forecasts are prepared and reviewed by the chief operating decision maker at the consolidated level. When making operational decisions, the chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics, but is indifferent to the results of the individual wholly-owned regional carriers. The objective in making operational decisions is to maximize consolidated financial results, not the individual results of American or American Eagle. See Note 1(k) for our passenger revenues by geographic region. Our tangible assets consist primarily of flight equipment, which are mobile across geographic markets and, therefore, have not been allocated. |
| American Airlines, Inc. [Member] | |
| Segment Reporting Information [Line Items] | |
| Operating Segments and Related Disclosures | Operating Segments and Related Disclosures American is managed as a single business unit that provides air transportation for passengers and cargo. This allows it to benefit from an integrated revenue pricing and route network that includes American and AAG’s wholly-owned and third-party regional carriers that fly under capacity purchase agreements operating as American Eagle. The flight equipment of all these carriers is combined to form one fleet that is deployed through a single route scheduling system. Financial information and annual operational plans and forecasts are prepared and reviewed by the chief operating decision maker at the consolidated level. When making operational decisions, the chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics, but is indifferent to the results of the individual regional carriers. The objective in making operational decisions is to maximize consolidated financial results, not the individual results of American or American Eagle. See Note 1(k) for American’s passenger revenues by geographic region. American’s tangible assets consist primarily of flight equipment, which are mobile across geographic markets and, therefore, have not been allocated. |
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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Share-based Compensation |
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| Share-based Compensation | Share-based Compensation The 2013 AAG Incentive Award Plan (the 2013 Plan) provides that awards may be in the form of an option, restricted stock award, restricted stock unit award, performance award, dividend equivalent award, deferred stock award, deferred stock unit award, stock payment award or stock appreciation right. The 2013 Plan initially authorized the grant of awards for the issuance of up to 40 million shares. Any shares underlying awards granted under the 2013 Plan, or any pre-existing US Airways Group plan, that are forfeited, terminate or are settled in cash (in whole or in part) without the delivery of shares will again be available for grant. Our salaries, wages and benefits expense for the years ended December 31, 2018, 2017 and 2016 included $88 million, $90 million and $102 million, respectively, of share-based compensation costs. During 2018, 2017 and 2016, we withheld approximately 0.8 million, 1.1 million and 1.4 million shares of AAG common stock, respectively, and paid approximately $37 million, $51 million and $56 million, respectively, in satisfaction of certain tax withholding obligations associated with employee equity awards. Restricted Stock Unit Awards (RSUs) We have granted RSUs with service conditions (time vested primarily over three years) and performance conditions. The grant-date fair value of RSUs is equal to the market price of the underlying shares of AAG common stock on the date of grant. For time vested awards, the expense is recognized on a straight-line basis over the vesting period for the entire award. For awards with performance conditions, the expense is recognized based on the expected achievement at each reporting period. Stock-settled RSUs are classified as equity awards as the vesting results in the issuance of shares of AAG common stock. Stock-settled RSU award activity for all plans for the years ended December 31, 2018, 2017 and 2016 is as follows:
As of December 31, 2018, there was $111 million of unrecognized compensation cost related to stock-settled RSUs. These costs are expected to be recognized over a weighted average period of one year. The total fair value of stock-settled RSUs vested during the years ended December 31, 2018, 2017 and 2016 was $91 million, $123 million and $107 million, respectively. |
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| Share-based Compensation | Share-based Compensation The 2013 AAG Incentive Award Plan (the 2013 Plan) provides that awards may be in the form of an option, restricted stock award, restricted stock unit award, performance award, dividend equivalent award, deferred stock award, deferred stock unit award, stock payment award or stock appreciation right. The 2013 Plan initially authorized the grant of awards for the issuance of up to 40 million shares. Any shares underlying awards granted under the 2013 Plan, or any pre-existing US Airways Group plan, that are forfeited, terminate or are settled in cash (in whole or in part) without the delivery of shares will again be available for grant. American’s salaries, wages and benefits expense for the years ended December 31, 2018, 2017 and 2016 included $88 million, $90 million and $102 million, respectively, of share-based compensation costs. During 2018, 2017 and 2016, AAG withheld approximately 0.8 million, 1.1 million and 1.4 million shares of AAG common stock, respectively, and paid approximately $37 million, $51 million and $56 million, respectively, in satisfaction of certain tax withholding obligations associated with employee equity awards. Restricted Stock Unit Awards (RSUs) AAG has granted RSUs with service conditions (time vested primarily over three years) and performance conditions. The grant-date fair value of RSUs is equal to the market price of the underlying shares of AAG common stock on the date of grant. For time vested awards, the expense is recognized on a straight-line basis over the vesting period for the entire award. For awards with performance conditions, the expense is recognized based on the expected achievement at each reporting period. Stock-settled RSUs are classified as equity awards as the vesting results in the issuance of shares of AAG common stock. Stock-settled RSU award activity for all plans for the years ended December 31, 2018, 2017 and 2016 is as follows:
As of December 31, 2018, there was $111 million of unrecognized compensation cost related to stock-settled RSUs. These costs are expected to be recognized over a weighted average period of one year. The total fair value of stock-settled RSUs vested during the years ended December 31, 2018, 2017 and 2016 was $91 million, $123 million and $107 million, respectively. |
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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Quarterly Financial Data (Unaudited) |
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| Quarterly Financial Data (Unaudited) | Quarterly Financial Data (Unaudited) Unaudited summarized financial data by quarter for 2018 and 2017 (in millions, except share and per share amounts):
Our fourth quarter 2018 results include $225 million of total net special items that principally included $146 million of fleet restructuring expenses, $81 million of merger integration expenses, $37 million of severance costs associated with reductions of management and support staff team members, $22 million of mark-to-market net unrealized losses associated with certain equity investments, offset in part by a $37 million net credit resulting from mark-to-market adjustments on bankruptcy obligations and a $22 million income tax credit as a result of the reversal of the valuation allowance previously recognized in the first quarter of 2018 related to our estimated refund for AMT credits, which is no longer subject to sequestration. Our fourth quarter 2017 results include $1.1 billion of total net special items that principally included a $149 million charge for the $1,000 cash bonus and associated payroll taxes granted to mainline employees as of December 31, 2017 in recognition of the 2017 Tax Act, $81 million of merger integration expenses, $58 million of fleet restructuring expenses, a $20 million net charge resulting from mark-to-market adjustments on bankruptcy obligations and an $823 million special non-cash charge to reflect the impact of lower corporate income tax rates on our deferred tax asset and liabilities due to the 2017 Tax Act, which reduced the federal corporate income tax rate from 35% to 21%. |
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| Quarterly Financial Data (Unaudited) | Quarterly Financial Data (Unaudited) Unaudited summarized financial data by quarter for 2018 and 2017 (in millions):
American’s fourth quarter 2018 results include $220 million of total net special items that principally included $146 million of fleet restructuring expenses, $81 million of merger integration expenses, $37 million of severance costs associated with reductions of management and support staff team members, $22 million of mark-to-market net unrealized losses associated with certain equity investments, offset in part by a $37 million net credit resulting from mark-to-market adjustments on bankruptcy obligations and a $22 million income tax credit as a result of the reversal of the valuation allowance previously recognized in the first quarter of 2018 related to American’s estimated refund for AMT credits, which is no longer subject to sequestration. American’s fourth quarter 2017 results include $1.2 billion of total net special items that principally included a $123 million charge for the $1,000 cash bonus and associated payroll taxes granted to mainline employees as of December 31, 2017 in recognition of the 2017 Tax Act, $81 million of merger integration expenses, $58 million of fleet restructuring expenses, a $20 million net charge resulting from mark-to-market adjustments on bankruptcy obligations and a $924 million special non-cash charge to reflect the impact of lower corporate income tax rates on the Company’s deferred tax asset and liabilities due to the 2017 Tax Act, which reduced the federal corporate income tax rate from 35% to 21%. |
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| Transactions with Related Parties | Transactions with Related Parties The following represents the net receivables (payables) to related parties (in millions):
Pursuant to a capacity purchase agreement between American and AAG’s wholly-owned regional airlines operating as American Eagle, American purchases all of the capacity from these carriers and recognizes passenger revenue from flights operated by American Eagle. In 2018, 2017 and 2016, American recognized expense of approximately $1.8 billion, $1.7 billion and $1.5 billion, respectively, related to wholly-owned regional airline capacity purchase agreements. |
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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Subsequent Event |
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| Subsequent Events [Abstract] | |
| Subsequent Event | Subsequent Event Dividend Declaration In January 2019, we announced that our Board of Directors declared a $0.10 per share cash dividend for stockholders of record on February 6, 2019, and payable on February 20, 2019. Any future dividends that may be declared and paid from time to time will be subject to market and economic conditions, applicable legal requirements and other relevant factors. We are not obligated to continue a dividend for any fixed period, and the payment of dividends may be suspended or discontinued at any time at our discretion and without prior notice. |
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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Basis of Presentation and Summary of Significant Accounting Policies (Policies) |
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| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation | (a) Basis of Presentation American Airlines Group Inc. (we, us, our and similar terms, or AAG), a Delaware corporation, is a holding company whose primary business activity is the operation of a major network air carrier, providing scheduled air transportation for passengers and cargo through its mainline operating subsidiary, American Airlines, Inc. (American) and its wholly-owned regional airline subsidiaries, Envoy Aviation Group Inc. (Envoy), PSA Airlines, Inc. (PSA) and Piedmont Airlines, Inc. (Piedmont) that operate under the brand American Eagle. On December 9, 2013, a subsidiary of AMR Corporation (AMR) merged with and into US Airways Group, Inc. (US Airways Group), a Delaware corporation, which survived as a wholly-owned subsidiary of AAG, and AAG emerged from Chapter 11 (the Merger). Upon closing of the Merger and emergence from Chapter 11, AMR changed its name to American Airlines Group Inc. All significant intercompany transactions have been eliminated. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The most significant areas of judgment relate to passenger revenue recognition, impairment of goodwill, impairment of long-lived and intangible assets, the loyalty program, as well as pension and retiree medical and other postretirement benefits. |
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| Recent Accounting Pronouncements | (b) Recent Accounting Pronouncements Standards Adopted in 2018 Effective January 1, 2018, we adopted the accounting pronouncements described below. ASU 2014-09: Revenue from Contracts with Customers (Topic 606) (the New Revenue Standard) The New Revenue Standard applies to all companies that enter into contracts with customers to transfer goods or services. We adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. The adoption of the New Revenue Standard impacted our accounting for outstanding mileage credits earned through travel by AAdvantage loyalty program members. There was no change in accounting for sales of mileage credits to co-branded credit card or other partners. Prior to the adoption of the New Revenue Standard, we used the incremental cost method to account for the portion of our loyalty program liability related to mileage credits earned through travel, which were valued based on the estimated incremental cost of carrying one additional passenger. The New Revenue Standard required us to change our policy to the deferred revenue method and apply a relative selling price approach whereby a portion of each passenger ticket sale attributable to mileage credits earned is deferred and recognized in passenger revenue upon future mileage redemption. The value of the earned mileage credits is materially greater under the deferred revenue method than the value attributed to these mileage credits under the incremental cost method. The New Revenue Standard also required certain reclassifications, principally the reclassification of certain ancillary revenues previously classified and reported as other revenue to passenger revenue and as applicable to cargo revenue. Additionally, the New Revenue Standard required a gross presentation on the face of our consolidated statements of operations for certain revenues and expenses that had previously been presented on a net basis. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to our consolidated statements of operations data for 2017 and 2016, respectively, and our consolidated balance sheet as of December 31, 2017 related to the adoption of the New Revenue Standard. ASU 2017-07: Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (the New Retirement Standard) The New Retirement Standard required all components of our net periodic benefit cost (income), with the exception of service cost, previously reported within operating expenses as salaries, wages and benefits, to be reclassified and reported within nonoperating income (expense). The New Retirement Standard was applied retrospectively, which resulted in the recast of each prior reporting period presented. The adoption of the New Retirement Standard had no impact on pre-tax income or net income reported. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to our consolidated statements of operations data for 2017 and 2016, respectively, related to the adoption of the New Retirement Standard. ASU 2016-02: Leases (Topic 842) (the New Lease Standard) The New Lease Standard requires lessees to recognize a lease liability and a right-of-use (ROU) asset on the balance sheet for operating leases. Accounting for finance leases is substantially unchanged. The New Lease Standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. In the fourth quarter of 2018, we elected to early adopt the New Lease Standard as of January 1, 2018 using a modified retrospective transition, with the cumulative-effect adjustment to the opening balance of retained earnings as of the effective date (the effective date method). Under the effective date method, financial results reported in periods prior to 2018 are unchanged. We also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The adoption of the New Lease Standard had a significant impact on our consolidated balance sheet due to the recognition of approximately $10 billion of lease liabilities with corresponding right-of-use assets for operating leases. Additionally, we recognized a $197 million cumulative effect adjustment credit, net of tax, to retained earnings. The adjustment to retained earnings was driven principally by sale-leaseback transactions including the recognition of unamortized deferred aircraft sale-leaseback gains. Prior to the adoption of the New Lease Standard, gains on sale-leaseback transactions were generally deferred and recognized in the income statement over the lease term. Under the New Lease Standard, gains on sale-leaseback transactions (subject to adjustment for off-market terms) are recognized immediately. ASU 2016-01: Financial Instruments - Overall (Subtopic 825-10) This ASU made several modifications to Subtopic 825-10, including the elimination of the available-for-sale classification of equity investments, and it required equity investments with readily determinable fair values to be measured at fair value with changes in fair value recognized in net income. This standard was adopted prospectively as of January 1, 2018 and resulted in a $60 million cumulative effect adjustment credit to retained earnings, net of tax, related to our investment in China Southern Airlines Company Limited (China Southern Airlines), which was previously accounted for under the cost method. ASU 2016-18: Statement of Cash Flows (Topic 230): Restricted Cash This ASU required that the change in the total cash balance, cash at the beginning of the period and cash at the end of the period on the statement of cash flows include restricted cash, and also required companies that report cash and restricted cash separately on the balance sheet to reconcile those amounts to the statement of cash flows. This standard was applied retrospectively, which resulted in the recast of prior reporting periods in the statement of cash flows. For the years ended December 31, 2018, 2017 and 2016, $11 million, $103 million and $113 million, respectively, of restricted cash is included in the total cash and restricted cash balance at the end of the period. A reconciliation of cash and restricted cash reported on our consolidated statements of cash flows to the amounts reported on our consolidated balance sheets is provided in a table below the Consolidated Statements of Cash Flows. Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to our December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
Standards Effective for 2019 Reporting Periods ASU 2018-02: Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income This ASU provides financial statement preparers with an option to reclassify stranded tax effects within accumulated other comprehensive income to retained earnings due to the U.S. federal corporate income tax rate change as a result of the 2017 Tax Act. The amount of the reclassification is the difference between the amount initially charged or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in accumulated other comprehensive income and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate, excluding the effect of any valuation allowance previously charged to income from continuing operations. This standard is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. We will adopt this standard effective January 1, 2019. The adoption of the standard may impact tax amounts stranded in accumulated other comprehensive income related to our pension and retiree medical and other postretirement benefit plans. |
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| Short-term Investments | (c) Short-term Investments Short-term investments are classified as available-for-sale and stated at fair value. Realized gains and losses are recorded in nonoperating expense on our consolidated statements of operations. Unrealized gains and losses are recorded in accumulated other comprehensive loss on our consolidated balance sheets. |
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| Restricted Cash and Short-term Investments | (d) Restricted Cash and Short-term Investments We have restricted cash and short-term investments related primarily to collateral held to support workers’ compensation obligations. |
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| Aircraft Fuel, Spare Parts, and Supplies, Net | (e) Aircraft Fuel, Spare Parts and Supplies, Net Aircraft fuel is recorded on a first-in, first-out basis. Spare parts and supplies are recorded at average costs less an allowance for obsolescence. These items are expensed when used. |
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| Operating Property and Equipment | (f) Operating Property and Equipment Operating property and equipment is recorded at cost and depreciated or amortized to residual values over the asset’s estimated useful life or the lease term, whichever is less, using the straight-line method. Residual values for aircraft, engines and related rotable parts are generally 5% to 10% of original cost. Costs of major improvements that enhance the usefulness of the asset are capitalized and depreciated or amortized over the estimated useful life of the asset or the lease term, whichever is less. The estimated useful lives for the principal property and equipment classifications are as follows:
We assess impairment on operating property and equipment when events and circumstances indicate that the assets may be impaired. An asset or group of assets is considered impaired when the undiscounted cash flows estimated to be generated by the assets are less than the carrying amount of the assets and the net book value of the assets exceeds their estimated fair value. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell. |
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| Leases | (g) Leases We determine if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, current operating lease liabilities and noncurrent operating lease liabilities in our consolidated balance sheet. Finance leases are included in property and equipment, current maturities of long-term debt and finance leases and long-term debt and finance leases, net of current maturities, in our consolidated balance sheet. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. We use our estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of lease payments. We give consideration to our recent debt issuances as well as publicly available data for instruments with similar characteristics when calculating our incremental borrowing rates. Our lease term includes options to extend the lease when it is reasonably certain that we will exercise that option. Leases with a term of 12 months or less are not recorded on the balance sheet. Our lease agreements do not contain any residual value guarantees. Under certain of our capacity purchase agreements with third-party regional carriers, we do not own the underlying aircraft. However, since we control the marketing, scheduling, ticketing, pricing and seat inventories of these aircraft and therefore control the asset, the aircraft is deemed to be leased for accounting purposes. For these capacity purchase agreements, we account for the lease and non-lease components separately. The lease component consists of the aircraft and the non-lease components consist of services, such as the crew and maintenance. We allocate the consideration in the capacity purchase agreements to the lease and non-lease components using their estimated relative standalone prices. See Note 12(b) for additional information on our capacity purchase agreements. For real estate, we account for the lease and non-lease components as a single lease component. |
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| Income Taxes | (h) Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are recorded net as noncurrent deferred income taxes. We provide a valuation allowance for our deferred tax assets when it is more likely than not that some portion, or all of our deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. We consider all available positive and negative evidence and make certain assumptions in evaluating the realizability of our deferred tax assets. Many factors are considered that impact our assessment of future profitability, including conditions which are beyond our control, such as the health of the economy, the level and volatility of fuel prices and travel demand. |
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| Goodwill | (i) Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets acquired and liabilities assumed. Goodwill is not amortized but assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that goodwill may be impaired. We have one consolidated reporting unit. Goodwill is assessed for impairment by initially performing a qualitative assessment and, if necessary, then comparing the fair value of the reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is less than the carrying value, a second step is performed to determine the implied fair value of goodwill. If the implied fair value of goodwill is lower than its carrying value, an impairment charge equal to the difference is recorded. |
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| Other Intangibles, Net | Certain domestic airport slots and airport gate leasehold rights are amortized on a straight-line basis over 25 years. The customer relationships and marketing agreements were identified as intangible assets subject to amortization and are amortized on a straight-line basis over approximately nine years and 30 years, respectively. Tradenames are fully amortized. Indefinite-Lived Intangible Assets Indefinite-lived intangible assets include certain domestic airport slots at our hubs and international slots and route authorities. Indefinite-lived intangible assets are not amortized but instead are assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that the asset may be impaired. Indefinite-lived intangible assets are assessed for impairment by initially performing a qualitative assessment to determine whether we believe it is more likely than not that an asset has been impaired. If we believe impairment has occurred, we then evaluate for impairment by comparing the estimated fair value of assets to the carrying value. An impairment charge is recognized if the asset’s estimated fair value is less than its carrying value. (j) Other Intangibles, Net Intangible assets consist primarily of domestic airport slots, customer relationships, marketing agreements, international slots and route authorities, airport gate leasehold rights and tradenames. Finite-Lived Intangible Assets Finite-lived intangible assets are amortized over their respective estimated useful lives and reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. |
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| Revenue Recognition | The balance of the loyalty program liability fluctuates based on seasonal patterns, which impact the volume of mileage credits issued through travel or sold to co-branded credit card and other partners (deferral of revenue) and mileage credits redeemed (recognition of revenue). We attribute passenger revenue by geographic region based upon the origin and destination of each flight segment. Passenger Revenue We recognize all revenues generated from transportation on American and our regional flights operated under the brand name American Eagle, including associated baggage fees, ticketing change fees and other inflight services, as passenger revenue when transportation is provided. Ticket and other related sales for transportation that has not yet been provided are initially deferred and recorded as air traffic liability on our consolidated balance sheets. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The majority of tickets sold are nonrefundable. A small percentage of tickets, some of which are partially used tickets, expire unused. Due to complex pricing structures, refund and exchange policies, and interline agreements with other airlines, certain amounts are recognized in passenger revenue using estimates regarding both the timing of the revenue recognition and the amount of revenue to be recognized. These estimates are generally based on the analysis of our historical data. We have consistently applied this accounting method to estimate revenue from forfeited tickets at the date of travel. Estimated future refunds and exchanges included in the air traffic liability are routinely evaluated based on subsequent activity to validate the accuracy of our estimates. Any adjustments resulting from periodic evaluations of the estimated air traffic liability are included in passenger revenue during the period in which the evaluations are completed. Various taxes and fees assessed on the sale of tickets to end customers are collected by us as an agent and remitted to taxing authorities. These taxes and fees have been presented on a net basis in the accompanying consolidated statements of operations and recorded as a liability until remitted to the appropriate taxing authority. Loyalty Revenue We currently operate the loyalty program, AAdvantage. This program awards mileage credits to passengers who fly on American, any oneworld airline or other partner airlines, or by using the services of other program participants, such as the Citi and Barclaycard US co-branded credit cards, hotels and car rental companies. Mileage credits can be redeemed for travel on American and other participating partner airlines, as well as other non-air travel awards such as hotels and rental cars. For mileage credits earned by AAdvantage loyalty program members, we apply the deferred revenue method in accordance with the New Revenue Standard. Mileage credits earned through travel For mileage credits earned through travel, we apply a relative selling price approach whereby the total amount collected from each passenger ticket sale is allocated between the air transportation and the mileage credits earned. The portion of each passenger ticket sale attributable to mileage credits earned is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. The estimated selling price of mileage credits is determined using an equivalent ticket value approach, which uses historical data, including award redemption patterns by geographic region and class of service, as well as similar fares as those used to settle award redemptions. The estimated selling price of miles is adjusted for an estimate of miles that will not be redeemed based on historical redemption patterns. Mileage credits sold to co-branded credit cards and other partners We sell mileage credits to participating airline partners and non-airline business partners including our co-branded credit card partners, under contracts with terms extending generally for one to nine years. Consideration received from the sale of mileage credits is variable and payment terms typically are within 30 days subsequent to the month of mileage sale. Sales of mileage credits to non-airline business partners are comprised of two components, transportation and marketing. We allocate the consideration received from these sales of mileage credits based on the relative selling price of each product or service delivered. Our most significant partner agreements are our co-branded credit card agreements with Citi and Barclaycard US that we entered into in 2016. We identified the following revenue elements in these co-branded credit card agreements: the transportation component; and the use of intellectual property, including the American brand and access to loyalty program member lists, which is the predominant element in the agreements, as well as advertising (collectively, the marketing component). Accordingly, we recognize the marketing component in other revenue in the period of the mileage sale following the sales-based royalty method. The transportation component represents the estimated selling price of future travel awards and is determined using the same equivalent ticket value approach described above. The portion of each mileage credit sold attributable to transportation is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. For the portion of our outstanding mileage credits that we estimate will not be redeemed, we recognize the associated value proportionally as the remaining mileage credits are redeemed. Our estimates are based on analysis of historical redemptions. Cargo Revenue Cargo revenue is recognized when we provide the transportation. Other Revenue Other revenue includes revenue associated with our loyalty program, which is comprised principally of the marketing component of mileage sales to co-branded credit card and other partners and other marketing related payments. For the years ended December 31, 2018, 2017 and 2016, loyalty revenue included in other revenue was $2.4 billion, $2.1 billion and $1.9 billion, respectively. The accounting and recognition for the loyalty program marketing services are discussed above in “Loyalty Revenue.” The remaining amounts included within other revenue relate to airport clubs, advertising and vacation-related services. Contract Balances Our significant contract liabilities are comprised of (1) outstanding loyalty program mileage credits that may be redeemed for future travel and other non-air travel awards, reported as loyalty program liability on our consolidated balance sheet and (2) ticket sales for transportation that has not yet been provided, reported as air traffic liability on our consolidated balance sheet. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The balance in our air traffic liability also fluctuates with seasonal travel patterns. The contract duration of passenger tickets is one year. Accordingly, any revenue associated with tickets sold for future travel will be recognized within twelve months. For 2018, $3.1 billion of revenue was recognized in passenger revenue that was included in our air traffic liability at December 31, 2017. With respect to contract receivables, reflected as accounts receivable, net on the accompanying consolidated balance sheet, these primarily include receivables for tickets sold to individual passengers through the use of major credit cards. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. (k) Revenue Recognition Revenue Effective January 1, 2018, we adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. Refer to “Recent Accounting Pronouncements” in Note 1(b) for the effects of the adoption on our consolidated statements of operations for the years ended December 31, 2017 and 2016 and on our consolidated balance sheet as of December 31, 2017. Under the New Revenue Standard, revenue is recognized upon the transfer of control of promised products or services to our customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. |
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| Maintenance, Materials and Repairs | (l) Maintenance, Materials and Repairs Maintenance and repair costs for owned and leased flight equipment are charged to operating expense as incurred, except costs incurred for maintenance and repair under flight hour maintenance contract agreements, which are accrued based on contractual terms when an obligation exists. |
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| Selling Expenses | (m) Selling Expenses Selling expenses include credit card fees, commissions, computerized reservations systems fees and advertising. Advertising costs are expensed as incurred. |
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| Share-based Compensation | (n) Share-based Compensation We account for our share-based compensation expense based on the fair value of the stock award at the time of grant, which is recognized ratably over the vesting period of the stock award. Certain awards have performance conditions that must be achieved prior to vesting and are expensed based on the expected achievement at each reporting period. The fair value of stock appreciation rights is estimated using a Black-Scholes option pricing model. The fair value of restricted stock units is based on the market price of the underlying shares of AAG common stock on the date of grant. See Note 15 for further discussion of share-based compensation. |
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| Foreign Currency Gains and Losses | (o) Foreign Currency Gains and Losses Foreign currency gains and losses are recorded as part of other income, net within total nonoperating expense, net in our consolidated statements of operations. |
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| Other Operating Expenses | (p) Other Operating Expenses Other operating expenses includes costs associated with ground and cargo handling, crew travel, aircraft food and catering, passenger accommodation, airport security, international navigation fees and certain general and administrative expenses. |
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| Regional Expenses | (q) Regional Expenses Expenses associated with American Eagle operations are classified as regional expenses on our consolidated statements of operations. |
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation | (a) Basis of Presentation American Airlines, Inc. (American) is a Delaware corporation whose primary business activity is the operation of a major network air carrier. American is the principal wholly-owned subsidiary of American Airlines Group Inc. (AAG), which owns all of American’s outstanding common stock, par value $1.00 per share. On December 9, 2013, a subsidiary of AMR Corporation (AMR) merged with and into US Airways Group, Inc. (US Airways Group), a Delaware corporation, which survived as a wholly-owned subsidiary of AAG, and AAG emerged from Chapter 11 (the Merger). Upon closing of the Merger and emergence from Chapter 11, AMR changed its name to American Airlines Group Inc. All significant intercompany transactions have been eliminated. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (GAAP) requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The most significant areas of judgment relate to passenger revenue recognition, impairment of goodwill, impairment of long-lived and intangible assets, the loyalty program, as well as pension and retiree medical and other postretirement benefits. |
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| Recent Accounting Pronouncements | (b) Recent Accounting Pronouncements Standards Adopted in 2018 Effective January 1, 2018, American adopted the accounting pronouncements described below. ASU 2014-09: Revenue from Contracts with Customers (Topic 606) (the New Revenue Standard) The New Revenue Standard applies to all companies that enter into contracts with customers to transfer goods or services. American adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. The adoption of the New Revenue Standard impacted American’s accounting for outstanding mileage credits earned through travel by AAdvantage loyalty program members. There was no change in accounting for sales of mileage credits to co-branded credit card or other partners. Prior to the adoption of the New Revenue Standard, American used the incremental cost method to account for the portion of its loyalty program liability related to mileage credits earned through travel, which were valued based on the estimated incremental cost of carrying one additional passenger. The New Revenue Standard required American to change its policy to the deferred revenue method and apply a relative selling price approach whereby a portion of each passenger ticket sale attributable to mileage credits earned is deferred and recognized in passenger revenue upon future mileage redemption. The value of the earned mileage credits is materially greater under the deferred revenue method than the value attributed to these mileage credits under the incremental cost method. The New Revenue Standard also required certain reclassifications, principally the reclassification of certain ancillary revenues previously classified and reported as other revenue to passenger revenue and as applicable to cargo revenue. Additionally, the New Revenue Standard required a gross presentation on the face of American’s consolidated statements of operations for certain revenues and expenses that had previously been presented on a net basis. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to American’s consolidated statements of operations data for 2017 and 2016, respectively, and American’s consolidated balance sheet as of December 31, 2017 related to the adoption of the New Revenue Standard. ASU 2017-07: Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (the New Retirement Standard) The New Retirement Standard required all components of American’s net periodic benefit cost (income), with the exception of service cost, previously reported within operating expenses as salaries, wages and benefits, to be reclassified and reported within nonoperating income (expense). The New Retirement Standard was applied retrospectively, which resulted in the recast of each prior reporting period presented. The adoption of the New Retirement Standard had no impact on pre-tax income or net income reported. See “Impacts to 2017 Results” and “Impacts to 2016 Results” below for the impact to American’s consolidated statements of operations data for 2017 and 2016, respectively, related to the adoption of the New Retirement Standard. ASU 2016-02: Leases (Topic 842) (the New Lease Standard) The New Lease Standard requires lessees to recognize a lease liability and a right-of-use (ROU) asset on the balance sheet for operating leases. Accounting for finance leases is substantially unchanged. The New Lease Standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. In the fourth quarter of 2018, American elected to early adopt the New Lease Standard as of January 1, 2018 using a modified retrospective transition, with the cumulative-effect adjustment to the opening balance of retained earnings as of the effective date (the effective date method). Under the effective date method, financial results reported in periods prior to 2018 are unchanged. American also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The adoption of the New Lease Standard had a significant impact on American’s consolidated balance sheet due to the recognition of approximately $10 billion of lease liabilities with corresponding right-of-use assets for operating leases. Additionally, American recognized a $197 million cumulative effect adjustment credit, net of tax, to retained earnings. The adjustment to retained earnings was driven principally by sale-leaseback transactions including the recognition of unamortized deferred aircraft sale-leaseback gains. Prior to the adoption of the New Lease Standard, gains on sale-leaseback transactions were generally deferred and recognized in the income statement over the lease term. Under the New Lease Standard, gains on sale-leaseback transactions (subject to adjustment for off-market terms) are recognized immediately. ASU 2016-01: Financial Instruments - Overall (Subtopic 825-10) This ASU made several modifications to Subtopic 825-10, including the elimination of the available-for-sale classification of equity investments, and it required equity investments with readily determinable fair values to be measured at fair value with changes in fair value recognized in net income. This standard was adopted prospectively as of January 1, 2018 and resulted in a $60 million cumulative effect adjustment credit to retained earnings, net of tax, related to American's investment in China Southern Airlines Company Limited (China Southern Airlines), which was previously accounted for under the cost method. ASU 2016-18: Statement of Cash Flows (Topic 230): Restricted Cash This ASU required that the change in the total cash balance, cash at the beginning of the period and cash at the end of the period on the statement of cash flows include restricted cash, and also required companies that report cash and restricted cash separately on the balance sheet to reconcile those amounts to the statement of cash flows. This standard was applied retrospectively, which resulted in the recast of prior reporting periods in the statement of cash flows. For the years ended December 31, 2018, 2017 and 2016, $11 million, $103 million and $113 million, respectively, of restricted cash is included in the total cash and restricted cash balance at the end of the period. A reconciliation of cash and restricted cash reported on American's consolidated statements of cash flows to the amounts reported on its consolidated balance sheets is provided in a table below the Consolidated Statements of Cash Flows. Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to American’s December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
Standards Effective for 2019 Reporting Periods ASU 2018-02: Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income This ASU provides financial statement preparers with an option to reclassify stranded tax effects within accumulated other comprehensive income to retained earnings due to the U.S. federal corporate income tax rate change as a result of the 2017 Tax Act. The amount of the reclassification is the difference between the amount initially charged or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in accumulated other comprehensive income and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate, excluding the effect of any valuation allowance previously charged to income from continuing operations. This standard is effective for interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. American will adopt this standard effective January 1, 2019. The adoption of the standard may impact tax amounts stranded in accumulated other comprehensive income related to American's pension and retiree medical and other postretirement benefit plans. |
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| Short-term Investments | (c) Short-term Investments Short-term investments are classified as available-for-sale and stated at fair value. Realized gains and losses are recorded in nonoperating expense on American’s consolidated statements of operations. Unrealized gains and losses are recorded in accumulated other comprehensive loss on American’s consolidated balance sheets. |
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| Restricted Cash and Short-term Investments | (d) Restricted Cash and Short-term Investments American has restricted cash and short-term investments related primarily to collateral held to support workers’ compensation obligations. |
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| Aircraft Fuel, Spare Parts, and Supplies, Net | (e) Aircraft Fuel, Spare Parts and Supplies, Net Aircraft fuel is recorded on a first-in, first-out basis. Spare parts and supplies are recorded at average costs less an allowance for obsolescence. These items are expensed when used. |
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| Operating Property and Equipment | (f) Operating Property and Equipment Operating property and equipment is recorded at cost and depreciated or amortized to residual values over the asset’s estimated useful life or the lease term, whichever is less, using the straight-line method. Residual values for aircraft, engines and related rotable parts are generally 5% to 10% of original cost. Costs of major improvements that enhance the usefulness of the asset are capitalized and depreciated or amortized over the estimated useful life of the asset or the lease term, whichever is less. The estimated useful lives for the principal property and equipment classifications are as follows:
American assesses impairment on operating property and equipment when events and circumstances indicate that the assets may be impaired. An asset or group of assets is considered impaired when the undiscounted cash flows estimated to be generated by the assets are less than the carrying amount of the assets and the net book value of the assets exceeds their estimated fair value. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell. |
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| Leases | (g) Leases American determines if an arrangement is a lease at inception. Operating leases are included in operating lease ROU assets, current operating lease liabilities and noncurrent operating lease liabilities in American’s consolidated balance sheet. Finance leases are included in property and equipment, current maturities of long-term debt and finance leases and long-term debt and finance leases, net of current maturities, in American’s consolidated balance sheet. ROU assets represent American’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. American uses its estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of lease payments. American gives consideration to its recent debt issuances as well as publicly available data for instruments with similar characteristics when calculating its incremental borrowing rates. American’s lease term includes options to extend the lease when it is reasonably certain that it will exercise that option. Leases with a term of 12 months or less are not recorded on the balance sheet. American’s lease agreements do not contain any residual value guarantees. Under certain of American’s capacity purchase agreements with third-party regional carriers, American does not own the underlying aircraft. However, since American controls the marketing, scheduling, ticketing, pricing and seat inventories of these aircraft and therefore control the asset, the aircraft is deemed to be leased for accounting purposes. For these capacity purchase agreements, American accounts for the lease and non-lease components separately. The lease component consists of the aircraft and the non-lease components consist of services, such as the crew and maintenance. American allocates the consideration in the capacity purchase agreements to the lease and non-lease components using their estimated relative standalone prices. See Note 10(b) for additional information on its capacity purchase agreements. For real estate, American accounts for the lease and non-lease components as a single lease component. |
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| Income Taxes | (h) Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are recorded net as noncurrent deferred income taxes. American provides a valuation allowance for its deferred tax assets when it is more likely than not that some portion, or all of its deferred tax assets, will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income. American considers all available positive and negative evidence and makes certain assumptions in evaluating the realizability of its deferred tax assets. Many factors are considered that impact American’s assessment of future profitability, including conditions which are beyond American’s control, such as the health of the economy, the level and volatility of fuel prices and travel demand. |
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| Goodwill | (i) Goodwill Goodwill represents the excess of the purchase price over the fair value of the net assets acquired and liabilities assumed. Goodwill is not amortized but assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that goodwill may be impaired. American has one consolidated reporting unit. Goodwill is assessed for impairment by initially performing a qualitative assessment and, if necessary, then comparing the fair value of the reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit is less than the carrying value, a second step is performed to determine the implied fair value of goodwill. If the implied fair value of goodwill is lower than its carrying value, an impairment charge equal to the difference is recorded. |
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| Other Intangibles, Net | Certain domestic airport slots and airport gate leasehold rights are amortized on a straight-line basis over 25 years. The customer relationships and marketing agreements were identified as intangible assets subject to amortization and are amortized on a straight-line basis over approximately nine years and 30 years, respectively. Tradenames are fully amortized. Indefinite-Lived Intangible Assets Indefinite-lived intangible assets include certain domestic airport slots at American’s hubs and international slots and route authorities. Indefinite-lived intangible assets are not amortized but instead are assessed for impairment annually on October 1st or more frequently if events or circumstances indicate that the asset may be impaired. Indefinite-lived intangible assets are assessed for impairment by initially performing a qualitative assessment to determine whether American believes it is more likely than not that an asset has been impaired. If American believes impairment has occurred, American then evaluates for impairment by comparing the estimated fair value of assets to the carrying value. An impairment charge is recognized if the asset’s estimated fair value is less than its carrying value. (j) Other Intangibles, Net Intangible assets consist primarily of domestic airport slots, customer relationships, marketing agreements, international slots and route authorities, airport gate leasehold rights and tradenames. Finite-Lived Intangible Assets Finite-lived intangible assets are amortized over their respective estimated useful lives and reviewed for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. |
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| Revenue Recognition | The balance of the loyalty program liability fluctuates based on seasonal patterns, which impact the volume of mileage credits issued through travel or sold to co-branded credit card and other partners (deferral of revenue) and mileage credits redeemed (recognition of revenue). American attributes passenger revenue by geographic region based upon the origin and destination of each flight segment. Passenger Revenue American recognizes all revenues generated from transportation on American and its regional flights operated under the brand name American Eagle, including associated baggage fees, ticketing change fees and other inflight services, as passenger revenue when transportation is provided. Ticket and other related sales for transportation that has not yet been provided are initially deferred and recorded as air traffic liability on American’s consolidated balance sheets. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The majority of tickets sold are nonrefundable. A small percentage of tickets, some of which are partially used tickets, expire unused. Due to complex pricing structures, refund and exchange policies, and interline agreements with other airlines, certain amounts are recognized in passenger revenue using estimates regarding both the timing of the revenue recognition and the amount of revenue to be recognized. These estimates are generally based on the analysis of American’s historical data. American has consistently applied this accounting method to estimate revenue from forfeited tickets at the date of travel. Estimated future refunds and exchanges included in the air traffic liability are routinely evaluated based on subsequent activity to validate the accuracy of American’s estimates. Any adjustments resulting from periodic evaluations of the estimated air traffic liability are included in passenger revenue during the period in which the evaluations are completed. Various taxes and fees assessed on the sale of tickets to end customers are collected by American as an agent and remitted to taxing authorities. These taxes and fees have been presented on a net basis in the accompanying consolidated statements of operations and recorded as a liability until remitted to the appropriate taxing authority. Loyalty Revenue American currently operates the loyalty program, AAdvantage. This program awards mileage credits to passengers who fly on American, any oneworld airline or other partner airlines, or by using the services of other program participants, such as the Citi and Barclaycard US co-branded credit cards, hotels and car rental companies. Mileage credits can be redeemed for travel on American and other participating partner airlines, as well as other non-air travel awards such as hotels and rental cars. For mileage credits earned by AAdvantage loyalty program members, American applies the deferred revenue method in accordance with the New Revenue Standard. Mileage credits earned through travel For mileage credits earned through travel, American applies a relative selling price approach whereby the total amount collected from each passenger ticket sale is allocated between the air transportation and the mileage credits earned. The portion of each passenger ticket sale attributable to mileage credits earned is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. The estimated selling price of mileage credits is determined using an equivalent ticket value approach, which uses historical data, including award redemption patterns by geographic region and class of service, as well as similar fares as those used to settle award redemptions. The estimated selling price of miles is adjusted for an estimate of miles that will not be redeemed based on historical redemption patterns. Mileage credits sold to co-branded credit cards and other partners American sells mileage credits to participating airline partners and non-airline business partners including American’s co-branded credit card partners, under contracts with terms extending generally for one to nine years. Consideration received from the sale of mileage credits is variable and payment terms typically are within 30 days subsequent to the month of mileage sale. Sales of mileage credits to non-airline business partners are comprised of two components, transportation and marketing. American allocates the consideration received from these sales of mileage credits based on the relative selling price of each product or service delivered. American’s most significant partner agreements are its co-branded credit card agreements with Citi and Barclaycard US that American entered into in 2016. American identified the following revenue elements in these co-branded credit card agreements: the transportation component; and the use of intellectual property, including the American brand and access to loyalty program member lists, which is the predominant element in the agreements, as well as advertising (collectively, the marketing component). Accordingly, American recognizes the marketing component in other revenue in the period of the mileage sale following the sales-based royalty method. The transportation component represents the estimated selling price of future travel awards and is determined using the same equivalent ticket value approach described above. The portion of each mileage credit sold attributable to transportation is initially deferred and then recognized in passenger revenue when mileage credits are redeemed and transportation is provided. For the portion of American’s outstanding mileage credits that it estimates will not be redeemed, American recognizes the associated value proportionally as the remaining mileage credits are redeemed. American’s estimates are based on analysis of historical redemptions. Cargo Revenue Cargo revenue is recognized when American provides the transportation. Other Revenue Other revenue includes revenue associated with American’s loyalty program, which is comprised principally of the marketing component of mileage sales to co-branded credit card and other partners and other marketing related payments. For the years ended December 31, 2018, 2017 and 2016, loyalty revenue included in other revenue was $2.4 billion, $2.1 billion and $1.9 billion, respectively. The accounting and recognition for the loyalty program marketing services are discussed above in “Loyalty Revenue.” The remaining amounts included within other revenue relate to airport clubs, advertising and vacation-related services. Contract Balances American’s significant contract liabilities are comprised of (1) outstanding loyalty program mileage credits that may be redeemed for future travel and other non-air travel awards, reported as loyalty program liability on American’s consolidated balance sheet and (2) ticket sales for transportation that has not yet been provided, reported as air traffic liability on American’s consolidated balance sheet. (k) Revenue Recognition Revenue Effective January 1, 2018, American adopted the New Revenue Standard using the full retrospective method, which resulted in the recast of prior reporting periods. Refer to “Recent Accounting Pronouncements” in Note 1(b) for the effects of the adoption on American’s consolidated statements of operations for the years ended December 31, 2017 and 2016 and on American’s consolidated balance sheet as of December 31, 2017. Under the New Revenue Standard, revenue is recognized upon the transfer of control of promised products or services to American’s customers in an amount that reflects the consideration it expects to receive in exchange for those products or services. The air traffic liability principally represents tickets sold for future travel on American and partner airlines, as well as estimated future refunds and exchanges of tickets sold for past travel. The balance in American’s air traffic liability also fluctuates with seasonal travel patterns. The contract duration of passenger tickets is one year. Accordingly, any revenue associated with tickets sold for future travel will be recognized within twelve months. For 2018, $3.1 billion of revenue was recognized in passenger revenue that was included in American’s air traffic liability at December 31, 2017. With respect to contract receivables, reflected as accounts receivable, net on the accompanying consolidated balance sheet, these primarily include receivables for tickets sold to individual passengers through the use of major credit cards. These receivables are short-term, mostly settled within seven days after sale. Bad debt losses, which have been minimal in the past, have been considered in establishing allowances for doubtful accounts. |
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| Maintenance, Materials and Repairs | (l) Maintenance, Materials and Repairs Maintenance and repair costs for owned and leased flight equipment are charged to operating expense as incurred, except costs incurred for maintenance and repair under flight hour maintenance contract agreements, which are accrued based on contractual terms when an obligation exists. |
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| Selling Expenses | (m) Selling Expenses Selling expenses include credit card fees, commissions, computerized reservations systems fees and advertising. Advertising costs are expensed as incurred. |
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| Share-based Compensation | (n) Share-based Compensation American accounts for its share-based compensation expense based on the fair value of the stock award at the time of grant, which is recognized ratably over the vesting period of the stock award. Certain awards have performance conditions that must be achieved prior to vesting and are expensed based on the expected achievement at each reporting period. The fair value of stock appreciation rights is estimated using a Black-Scholes option pricing model. The fair value of restricted stock units is based on the market price of the underlying shares of AAG common stock on the date of grant. See Note 13 for further discussion of share-based compensation. |
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| Foreign Currency Gains and Losses | (o) Foreign Currency Gains and Losses Foreign currency gains and losses are recorded as part of other income, net within total nonoperating expense, net in American’s consolidated statements of operations. |
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| Other Operating Expenses | (p) Other Operating Expenses Other operating expenses includes costs associated with ground and cargo handling, crew travel, aircraft food and catering, passenger accommodation, airport security, international navigation fees and certain general and administrative expenses. |
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| Regional Expenses | (q) Regional Expenses Expenses associated with American Eagle operations are classified as regional expenses on American’s consolidated statements of operations. |
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- Definition Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] No definition available.
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- Definition Other Cost And Expense Operating [Policy Text Block] No definition available.
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- Definition Regional Expenses, Policy No definition available.
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- Definition Restricted Cash And Short Term Investments, Policy No definition available.
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- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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- Definition Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for goodwill. This accounting policy also may address how an entity assesses and measures impairment of goodwill, how reporting units are determined, how goodwill is allocated to such units, and how the fair values of the reporting units are determined. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for leasing arrangement entered into by lessee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Disclosure of the accounting policy for maintenance costs. Does not include planned major maintenance activities. No definition available.
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- Definition Disclosure of accounting policy for investment classified as marketable security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for revenue from contract with customer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Disclosure of accounting policy for inclusion of significant items in the selling, general and administrative (or similar) expense report caption. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Basis of Presentation and Summary of Significant Accounting Policies (Tables) |
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| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of New Accounting Pronouncements and Changes in Accounting Principles | Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to our December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to our consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
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| Schedule of Estimated Useful Lives of Principal Property and Equipment | The estimated useful lives for the principal property and equipment classifications are as follows:
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| Schedule of Amortizable Intangible Assets | The following table provides information relating to our amortizable intangible assets as of December 31, 2018 and 2017 (in millions):
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| Schedule of Future Amortization Expense | We expect to record annual amortization expense for these intangible assets as follows (in millions):
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| Disaggregation of Revenue | The following are the significant categories comprising our reported operating revenues (in millions):
The following is our total passenger revenue by geographic region (in millions):
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| Schedule of Contract Balances | Changes in loyalty program liability are as follows (in millions):
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| Components of Regional Expenses | Regional expenses consist of the following (in millions):
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of New Accounting Pronouncements and Changes in Accounting Principles | Impacts to 2017 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2017 were as follows (in millions):
The effects of the adoption of the New Revenue Standard to American’s December 31, 2017 consolidated balance sheet were as follows (in millions):
Impacts to 2016 Results The effects of the adoption of the New Revenue Standard and New Retirement Standard to American’s consolidated statement of operations for the twelve months ended December 31, 2016 were as follows (in millions):
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| Schedule of Estimated Useful Lives of Principal Property and Equipment | The estimated useful lives for the principal property and equipment classifications are as follows:
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| Schedule of Amortizable Intangible Assets | The following table provides information relating to American’s amortizable intangible assets as of December 31, 2018 and 2017 (in millions):
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| Schedule of Future Amortization Expense | American expects to record annual amortization expense for these intangible assets as follows (in millions):
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| Disaggregation of Revenue | The following are the significant categories comprising American’s reported operating revenues (in millions):
The following is American’s total passenger revenue by geographic region (in millions):
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| Schedule of Contract Balances |
Changes in loyalty program liability are as follows (in millions):
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| Components of Regional Expenses | Regional expenses consist of the following (in millions):
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| X | ||||||||||
- Definition Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] No definition available.
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| X | ||||||||||
- Definition Schedule Of Regional Operating Expenses No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of contract balances and changes in contract balances. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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Special Items, Net (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring Cost and Reserve [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Special Items, Net Included in Consolidated Statements of Operations | Special items, net on our consolidated statements of operations consisted of the following (in millions):
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring Cost and Reserve [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Special Items, Net Included in Consolidated Statements of Operations | Special items, net on American’s consolidated statements of operations consisted of the following (in millions):
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| X | ||||||||||
- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Earnings Per Common Share (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Computation of Basic and Diluted Earnings per Common Share | The following table sets forth the computation of basic and diluted earnings per common share (EPS) (in millions, except share and per share amounts):
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- References No definition available.
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt | Long-term debt included in the consolidated balance sheets consisted of (in millions):
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| Schedule of Credit Facilities | Certain details of our 2013 Credit Facilities, 2014 Credit Facilities, April 2016 Credit Facilities and December 2016 Credit Facilities (collectively referred to as the Credit Facilities) are shown in the table below as of December 31, 2018:
The table below shows the maximum availability under revolving credit facilities, all of which were undrawn, as of December 31, 2018 (in millions):
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| Schedule of Maturities of Long-Term Debt and Capital Lease Obligations | At December 31, 2018, the maturities of long-term debt are as follows (in millions):
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| Schedule of Collateral Coverage Tests | Specifically, we are required to meet certain collateral coverage tests on an annual basis for our Credit Facilities, as described below:
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| Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt | Certain information regarding the 2012-2 Class C(R) EETC equipment notes, as of December 31, 2018, is set forth in the table below.
Certain information regarding the 2017-2 EETC equipment notes, as of December 31, 2018, is set forth in the table below.
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| Unsecured Debt [Member] | Senior Notes [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt | The details of our 5.50% and 4.625% senior notes are shown in the table below as of December 31, 2018:
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt | Long-term debt included in the consolidated balance sheets consisted of (in millions):
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| Schedule of Credit Facilities | The table below shows the maximum availability under revolving credit facilities, all of which were undrawn, as of December 31, 2018 (in millions):
Certain details of American’s 2013 Credit Facilities, 2014 Credit Facilities, April 2016 Credit Facilities and December 2016 Credit Facilities (collectively referred to as the Credit Facilities) are shown in the table below as of December 31, 2018:
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| Schedule of Maturities of Long-Term Debt and Capital Lease Obligations | At December 31, 2018, the maturities of long-term debt are as follows (in millions):
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| Schedule of Collateral Coverage Tests | Specifically, American is required to meet certain collateral coverage tests on an annual basis for its Credit Facilities, as described below:
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| American Airlines, Inc. [Member] | Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Instrument [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt | Certain information regarding the 2012-2 Class C(R) EETC equipment notes, as of December 31, 2018, is set forth in the table below.
Certain information regarding the 2017-2 EETC equipment notes, as of December 31, 2018, is set forth in the table below.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. No definition available.
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Leases (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lessee, Lease, Description [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Lease Expense | The components of lease expense were as follows (in millions):
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| Supplemental Balance Sheet Information | Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):
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| Supplemental Cash Flow and Other Information | Supplemental cash flow and other information related to leases was as follows (in millions):
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| Maturities of Operating Lease Liabilities | Maturities of lease liabilities were as follows (in millions):
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| Maturities of Finance Lease Liabilities | Maturities of lease liabilities were as follows (in millions):
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| Future Minimum Lease Payment Obligations Under Operating Leases | As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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| Future Minimum Lease Payment Obligations Under Capital Leases | As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lessee, Lease, Description [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Lease Expense | The components of lease expense were as follows (in millions):
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| Supplemental Balance Sheet Information | Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):
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| Supplemental Cash Flow and Other Information | Supplemental cash flow and other information related to leases was as follows (in millions):
|
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| Maturities of Operating Lease Liabilities | Maturities of lease liabilities were as follows (in millions):
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| Maturities of Finance Lease Liabilities | Maturities of lease liabilities were as follows (in millions):
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| Future Minimum Lease Payment Obligations Under Operating Leases | As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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| Future Minimum Lease Payment Obligations Under Capital Leases | As of December 31, 2017, future minimum lease payment obligations under noncancellable operating leases, including payments for the lease of certain aircraft under capacity purchase agreements, as well as payments under capital lease obligations were as follows (in millions):
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| X | ||||||||||
- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
|
Income Taxes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Income Tax Provision | The significant components of the income tax provision were (in millions):
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| Reconciliation of Income Tax Provision | The income tax provision differed from amounts computed at the statutory federal income tax rate as follows (in millions):
|
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| Deferred Tax Assets and Liabilities | The components of our deferred tax assets and liabilities were (in millions):
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Income Tax Provision | The significant components of the income tax provision were (in millions):
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| Reconciliation of Income Tax Provision | The income tax provision differed from amounts computed at the statutory federal income tax rate as follows (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Deferred Tax Assets and Liabilities | The components of American’s deferred tax assets and liabilities were (in millions):
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| X | ||||||||||
- Definition Income Taxes [Line Items] No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
|
Fair Value Measurements and Other Investments (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Assets Measured at Fair Value on Recurring Basis | Assets measured at fair value on a recurring basis are summarized below (in millions):
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| Schedule of Carrying Value and Estimated Fair Value of Long-Term Debt, Including Current Maturities | The carrying value and estimated fair value of our long-term debt, including current maturities, were as follows (in millions):
|
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Assets Measured at Fair Value on Recurring Basis | Assets measured at fair value on a recurring basis are summarized below (in millions):
|
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| Schedule of Carrying Value and Estimated Fair Value of Long-Term Debt, Including Current Maturities | The carrying value and estimated fair value of American’s long-term debt, including current maturities, were as follows (in millions):
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. No definition available.
|
| X | ||||||||||
- Details
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Employee Benefit Plans (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Changes in Projected Benefit Obligations | The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2018 and 2017:
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| Schedule of Changes in Fair Value of Plan Assets | The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2018 and 2017:
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Amounts Recognized in Consolidated Balance Sheets | Balance Sheet Position
|
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| Schedule of Amounts Recognized in Other Comprehensive Income |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets | Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Net Periodic Benefit Cost (Income) | Net Periodic Benefit Cost (Income)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost | The following actuarial assumptions were used to determine our benefit obligations and net periodic benefit cost for the periods presented:
|
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| Schedule of One Percentage Point Change in Assumed Health Care Cost Trend Rates | A one percentage point change in the assumed health care cost trend rates would have the following effects on our retiree medical and other postretirement benefits plans (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Expected Future Service Benefit Payments | The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The current strategic target asset allocation is as follows:
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes in Fair Value Measurements of Level 3 Investments | Changes in fair value measurements of Level 3 investments during the year ended December 31, 2018, were as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2017, were as follows (in millions):
|
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| Pension Benefits [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The fair value of our pension plan assets at December 31, 2018 and 2017, by asset category, are as follows (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retiree Medical And Other Postretirement Benefits [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The fair value of our retiree medical and other postretirement benefits plans assets at December 31, 2018 by asset category, were as follows (in millions):
The fair value of our retiree medical and other postretirement benefits plans assets at December 31, 2017 by asset category, were as follows (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Changes in Projected Benefit Obligations | The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2018 and 2017:
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Changes in Fair Value of Plan Assets |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Amounts Recognized in Consolidated Balance Sheets |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Amounts Recognized in Other Comprehensive Income |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets | Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Net Periodic Benefit Cost (Income) |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost | The following actuarial assumptions were used to determine American’s benefit obligations and net periodic benefit cost for the periods presented:
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of One Percentage Point Change in Assumed Health Care Cost Trend Rates | A one percentage point change in the assumed health care cost trend rates would have the following effects on American’s retiree medical and other postretirement benefits plans (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Expected Future Service Benefit Payments | The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The current strategic target asset allocation is as follows:
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes in Fair Value Measurements of Level 3 Investments | Changes in fair value measurements of Level 3 investments during the year ended December 31, 2018, were as follows (in millions):
Changes in fair value measurements of Level 3 investments during the year ended December 31, 2017, were as follows (in millions):
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The fair value of American’s pension plan assets at December 31, 2018 and 2017, by asset category, are as follows (in millions):
|
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| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Allocation of Plan Assets | The fair value of American’s retiree medical and other postretirement benefits plans assets at December 31, 2018 by asset category, were as follows (in millions):
The fair value of American’s retiree medical and other postretirement benefits plans assets at December 31, 2017 by asset category, were as follows (in millions):
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs and the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Accumulated Other Comprehensive Loss (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Accumulated Other Comprehensive Loss (AOCI) | The components of AOCI are as follows (in millions):
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| Reclassifications out of AOCI | Reclassifications out of AOCI for the years ended December 31, 2018 and 2017 are as follows (in millions):
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Accumulated Other Comprehensive Loss (AOCI) | The components of AOCI are as follows (in millions):
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| Reclassifications out of AOCI | Reclassifications out of AOCI for the years ended December 31, 2018 and 2017 are as follows (in millions):
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). No definition available.
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Commitments, Contingencies and Guarantees (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Purchase Commitments | Under all of our aircraft and engine purchase agreements, our total future commitments as of December 31, 2018 are expected to be as follows (approximately, in millions):
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| Minimum Fixed Obligations under Capacity Purchase Agreements with Third-Party Regional Carriers | As of December 31, 2018, American’s minimum fixed obligations under its capacity purchase agreements with third-party regional carriers are as follows (approximately, in millions):
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Purchase Commitments | Under all of American’s aircraft and engine purchase agreements, its total future commitments as of December 31, 2018 are expected to be as follows (approximately, in millions):
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| Minimum Fixed Obligations under Capacity Purchase Agreements with Third-Party Regional Carriers | As of December 31, 2018, American’s minimum fixed obligations under its capacity purchase agreements with third-party regional carriers are as follows (approximately, in millions):
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- Definition [Line Items] for Commitments and Contingencies [Table] No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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Supplemental Cash Flow Information (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Significant Noncash Transactions [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash Flow Information and Non-Cash Investing and Financing Activities | Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Significant Noncash Transactions [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cash Flow Information and Non-Cash Investing and Financing Activities | Supplemental disclosure of cash flow information and non-cash investing and financing activities are as follows (in millions):
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. No definition available.
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- Details
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Share-based Compensation (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Stock-Settled RSU Award Activity | Stock-settled RSU award activity for all plans for the years ended December 31, 2018, 2017 and 2016 is as follows:
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Stock-Settled RSU Award Activity | Stock-settled RSU award activity for all plans for the years ended December 31, 2018, 2017 and 2016 is as follows:
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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Valuation and Qualifying Accounts (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Valuation and Qualifying Accounts |
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| American Airlines, Inc. [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of Valuation and Qualifying Accounts |
|
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| X | ||||||||||
- Definition Schedule Of Valuation And Qualifying Accounts [Table Text Block] No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Details
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Quarterly Financial Data (Unaudited) (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Selected Quarterly Financial Information [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summarized Financial Data | Unaudited summarized financial data by quarter for 2018 and 2017 (in millions, except share and per share amounts):
|
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| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Selected Quarterly Financial Information [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summarized Financial Data | Unaudited summarized financial data by quarter for 2018 and 2017 (in millions):
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
- Definition Selected Quarterly Financial Information [Line Items] No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
|
Transactions with Related Parties (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| American Airlines, Inc. [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Related Party Transaction [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Net Receivables (Payables) to Related Parties | The following represents the net receivables (payables) to related parties (in millions):
|
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. No definition available.
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| X | ||||||||||
- Details
|
Basis of Presentation and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Jan. 01, 2018 |
Jan. 01, 2016 |
Dec. 31, 2015 |
|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Operating lease liabilities | $ 9,556 | $ 9,556 | ||||||||||||
| Operating lease right-of-use assets | 9,151 | $ 0 | 9,151 | $ 0 | ||||||||||
| Restricted cash included in restricted cash and short-term investments | 11 | 103 | 11 | 103 | $ 113 | |||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 10,938 | $ 11,559 | $ 11,643 | $ 10,401 | 10,611 | $ 10,965 | $ 11,227 | $ 9,820 | 44,541 | 42,622 | 40,142 | |||
| Total operating expenses | 10,367 | 10,874 | 10,639 | 10,005 | 9,973 | 9,709 | 9,628 | 9,083 | 41,885 | 38,391 | 35,082 | |||
| Operating income | 571 | 685 | 1,004 | 396 | 638 | 1,256 | 1,599 | 737 | 2,656 | 4,231 | 5,060 | |||
| Total nonoperating expense, net | (772) | (836) | (908) | |||||||||||
| Income before income taxes | 1,884 | 3,395 | 4,152 | |||||||||||
| Income tax provision | 472 | 2,113 | 1,568 | |||||||||||
| Net income | $ 325 | $ 372 | $ 556 | $ 159 | $ (583) | $ 661 | $ 864 | $ 340 | $ 1,412 | $ 1,282 | $ 2,584 | |||
| Diluted earnings per common share (in dollars per share) | $ 0.70 | $ 0.81 | $ 1.20 | $ 0.34 | $ (1.22) | $ 1.36 | $ 1.75 | $ 0.67 | $ 3.03 | $ 2.61 | $ 4.65 | |||
| Impact of Tax Act, charge to reduce deferred tax assets | $ 823 | $ 0 | $ 823 | $ 0 | ||||||||||
| Deferred tax asset | $ 1,145 | 1,816 | 1,145 | 1,816 | ||||||||||
| Noncurrent loyalty program liability | 5,272 | 5,701 | 5,272 | 5,701 | ||||||||||
| Total stockholders’ equity (deficit) | (169) | (780) | (169) | (780) | (284) | $ 5,635 | ||||||||
| Accounting Standards Update 2016-02 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Operating lease liabilities | $ 10,000 | |||||||||||||
| Operating lease right-of-use assets | 10,000 | |||||||||||||
| Cumulative effect adjustment | 197 | |||||||||||||
| Accounting Standards Update 2016-01 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | 60 | |||||||||||||
| Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | $ (3,977) | |||||||||||||
| American Airlines, Inc. [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Operating lease liabilities | 9,496 | 9,496 | ||||||||||||
| Operating lease right-of-use assets | 9,094 | 0 | 9,094 | 0 | ||||||||||
| Restricted cash included in restricted cash and short-term investments | 11 | 103 | 11 | 103 | 113 | |||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 10,936 | $ 11,556 | $ 11,640 | $ 10,398 | 10,607 | $ 10,962 | $ 11,224 | $ 9,817 | 44,530 | 42,610 | 40,125 | |||
| Total operating expenses | 10,344 | 10,850 | 10,626 | 9,986 | 9,982 | 9,713 | 9,633 | 9,077 | 41,807 | 38,405 | 35,045 | |||
| Operating income | 592 | 706 | 1,014 | 412 | 625 | 1,249 | 1,591 | 740 | 2,723 | 4,205 | 5,080 | |||
| Total nonoperating expense, net | (531) | (650) | (784) | |||||||||||
| Income before income taxes | 2,192 | 3,555 | 4,296 | |||||||||||
| Income tax provision | 534 | 2,270 | 1,607 | |||||||||||
| Net income | 407 | $ 433 | $ 609 | $ 209 | (658) | $ 686 | $ 888 | $ 369 | 1,658 | 1,285 | 2,689 | |||
| Impact of Tax Act, charge to reduce deferred tax assets | 924 | 0 | 924 | 0 | ||||||||||
| Deferred tax asset | 1,280 | 2,071 | 1,280 | 2,071 | ||||||||||
| Noncurrent loyalty program liability | 5,272 | 5,701 | 5,272 | 5,701 | ||||||||||
| Total stockholders’ equity (deficit) | 11,770 | 9,888 | 11,770 | 9,888 | 8,580 | 9,698 | ||||||||
| American Airlines, Inc. [Member] | Accounting Standards Update 2016-02 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Operating lease liabilities | 10,000 | |||||||||||||
| Operating lease right-of-use assets | 10,000 | |||||||||||||
| Cumulative effect adjustment | 197 | |||||||||||||
| American Airlines, Inc. [Member] | Accounting Standards Update 2016-01 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | 60 | |||||||||||||
| American Airlines, Inc. [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | (3,977) | |||||||||||||
| Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 42,207 | 40,180 | ||||||||||||
| Total operating expenses | 38,149 | 34,896 | ||||||||||||
| Operating income | 4,058 | 5,284 | ||||||||||||
| Total nonoperating expense, net | (974) | (985) | ||||||||||||
| Income before income taxes | 3,084 | 4,299 | ||||||||||||
| Income tax provision | 1,165 | 1,623 | ||||||||||||
| Net income | $ 1,919 | $ 2,676 | ||||||||||||
| Diluted earnings per common share (in dollars per share) | $ 3.90 | $ 4.81 | ||||||||||||
| Deferred tax asset | 427 | $ 427 | ||||||||||||
| Total stockholders’ equity (deficit) | 3,926 | 3,926 | ||||||||||||
| Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 42,195 | $ 40,163 | ||||||||||||
| Total operating expenses | 38,163 | 34,859 | ||||||||||||
| Operating income | 4,032 | 5,304 | ||||||||||||
| Total nonoperating expense, net | (788) | (861) | ||||||||||||
| Income before income taxes | 3,244 | 4,443 | ||||||||||||
| Income tax provision | 1,322 | 1,662 | ||||||||||||
| Net income | 1,922 | 2,781 | ||||||||||||
| Deferred tax asset | 682 | 682 | ||||||||||||
| Total stockholders’ equity (deficit) | 14,594 | 14,594 | ||||||||||||
| Restatement Adjustment [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Deferred tax asset | 1,389 | 1,389 | ||||||||||||
| Total stockholders’ equity (deficit) | (4,706) | (4,706) | ||||||||||||
| Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Deferred Revenue Method [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 311 | (147) | ||||||||||||
| Operating income | 311 | (147) | ||||||||||||
| Income before income taxes | 311 | (147) | ||||||||||||
| Income tax provision | 948 | (55) | ||||||||||||
| Net income | (637) | (92) | ||||||||||||
| Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 104 | 109 | ||||||||||||
| Total operating expenses | 104 | 109 | ||||||||||||
| Restatement Adjustment [Member] | Accounting Standards Update 2017-07 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating expenses | 138 | 77 | ||||||||||||
| Operating income | (138) | (77) | ||||||||||||
| Total nonoperating expense, net | 138 | 77 | ||||||||||||
| Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Deferred tax asset | 1,389 | 1,389 | ||||||||||||
| Total stockholders’ equity (deficit) | (4,706) | (4,706) | ||||||||||||
| Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Deferred Revenue Method [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 311 | (147) | ||||||||||||
| Operating income | 311 | (147) | ||||||||||||
| Income before income taxes | 311 | (147) | ||||||||||||
| Income tax provision | 948 | (55) | ||||||||||||
| Net income | (637) | (92) | ||||||||||||
| Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 104 | 109 | ||||||||||||
| Total operating expenses | 104 | 109 | ||||||||||||
| Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2017-07 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating expenses | 138 | 77 | ||||||||||||
| Operating income | (138) | (77) | ||||||||||||
| Total nonoperating expense, net | 138 | 77 | ||||||||||||
| Passenger [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 40,676 | 39,131 | 37,045 | |||||||||||
| Passenger [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 40,676 | 39,131 | 37,045 | |||||||||||
| Passenger [Member] | Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 36,133 | 34,579 | ||||||||||||
| Passenger [Member] | Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 36,133 | 34,579 | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Deferred Revenue Method [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 311 | (147) | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 2,648 | 2,571 | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 39 | 42 | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Deferred Revenue Method [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 311 | (147) | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 2,648 | 2,571 | ||||||||||||
| Passenger [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 39 | 42 | ||||||||||||
| Cargo [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 1,013 | 890 | 785 | |||||||||||
| Cargo [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 1,013 | 890 | 785 | |||||||||||
| Cargo [Member] | Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 800 | 700 | ||||||||||||
| Cargo [Member] | Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 800 | 700 | ||||||||||||
| Cargo [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 42 | 36 | ||||||||||||
| Cargo [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 48 | 49 | ||||||||||||
| Cargo [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 42 | 36 | ||||||||||||
| Cargo [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 48 | 49 | ||||||||||||
| Other [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 2,852 | 2,601 | 2,312 | |||||||||||
| Other [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 2,841 | 2,589 | 2,295 | |||||||||||
| Other [Member] | Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 5,274 | 4,901 | ||||||||||||
| Other [Member] | Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 5,262 | 4,884 | ||||||||||||
| Other [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | (2,690) | (2,607) | ||||||||||||
| Other [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 17 | 18 | ||||||||||||
| Other [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Ancillary Revenue Reclassifications [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | (2,690) | (2,607) | ||||||||||||
| Other [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09, Gross Versus Net Presentation [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Total operating revenues | 17 | 18 | ||||||||||||
| Air traffic [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 4,339 | 4,042 | 4,339 | 4,042 | ||||||||||
| Air traffic [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 4,339 | 4,042 | 4,339 | 4,042 | ||||||||||
| Air traffic [Member] | Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 3,978 | 3,978 | ||||||||||||
| Air traffic [Member] | Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 3,978 | 3,978 | ||||||||||||
| Air traffic [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 64 | 64 | ||||||||||||
| Air traffic [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 64 | 64 | ||||||||||||
| Loyalty program [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 3,267 | 3,121 | 3,267 | 3,121 | ||||||||||
| Noncurrent loyalty program liability | 5,701 | 5,701 | ||||||||||||
| Loyalty program [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 3,267 | 3,121 | 3,267 | 3,121 | ||||||||||
| Noncurrent loyalty program liability | 5,701 | 5,701 | ||||||||||||
| Loyalty program [Member] | Previously Reported [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 2,791 | 2,791 | ||||||||||||
| Noncurrent loyalty program liability | 0 | 0 | ||||||||||||
| Loyalty program [Member] | Previously Reported [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 2,791 | 2,791 | ||||||||||||
| Noncurrent loyalty program liability | 0 | 0 | ||||||||||||
| Loyalty program [Member] | Restatement Adjustment [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 330 | 330 | ||||||||||||
| Noncurrent loyalty program liability | 5,701 | 5,701 | ||||||||||||
| Loyalty program [Member] | Restatement Adjustment [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Customer liabilities | 330 | 330 | ||||||||||||
| Noncurrent loyalty program liability | 5,701 | 5,701 | ||||||||||||
| Retained Earnings (Deficit) [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Net income | 1,412 | 1,282 | 2,584 | |||||||||||
| Total stockholders’ equity (deficit) | 136 | (1,345) | 136 | (1,345) | (2,429) | (1,230) | ||||||||
| Retained Earnings (Deficit) [Member] | Accounting Standards Update 2016-02 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | 197 | |||||||||||||
| Retained Earnings (Deficit) [Member] | Accounting Standards Update 2016-01 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | 60 | |||||||||||||
| Retained Earnings (Deficit) [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | (3,977) | |||||||||||||
| Retained Earnings (Deficit) [Member] | American Airlines, Inc. [Member] | ||||||||||||||
| Operating revenues: | ||||||||||||||
| Net income | 1,658 | 1,285 | 2,689 | |||||||||||
| Total stockholders’ equity (deficit) | $ 338 | $ (1,577) | $ 338 | $ (1,577) | $ (2,862) | $ (1,992) | ||||||||
| Retained Earnings (Deficit) [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2016-02 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | 197 | |||||||||||||
| Retained Earnings (Deficit) [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2016-01 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | $ 60 | |||||||||||||
| Retained Earnings (Deficit) [Member] | American Airlines, Inc. [Member] | Accounting Standards Update 2014-09 [Member] | ||||||||||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||||||||||
| Cumulative effect adjustment | $ (3,977) | |||||||||||||
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- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. No definition available.
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Basis of Presentation and Summary of Significant Accounting Policies - Operating Property and Equipment (Detail) - USD ($) $ in Billions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Property, Plant and Equipment [Line Items] | |||
| Depreciation | $ 2.4 | $ 2.2 | $ 1.9 |
| Minimum [Member] | Aircraft, engines and related rotable parts [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Residual value percentage of equipment and properties | 5.00% | ||
| Estimated useful life | 20 years | ||
| Minimum [Member] | Buildings and improvements [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 5 years | ||
| Minimum [Member] | Furniture, fixtures and other equipment [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 3 years | ||
| Minimum [Member] | Capitalized software [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 5 years | ||
| Maximum [Member] | Aircraft, engines and related rotable parts [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Residual value percentage of equipment and properties | 10.00% | ||
| Estimated useful life | 30 years | ||
| Maximum [Member] | Buildings and improvements [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 30 years | ||
| Maximum [Member] | Furniture, fixtures and other equipment [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 10 years | ||
| Maximum [Member] | Capitalized software [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 10 years | ||
| American Airlines, Inc. [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Depreciation | $ 2.4 | $ 2.1 | $ 1.8 |
| American Airlines, Inc. [Member] | Minimum [Member] | Aircraft, engines and related rotable parts [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Residual value percentage of equipment and properties | 5.00% | ||
| Estimated useful life | 20 years | ||
| American Airlines, Inc. [Member] | Minimum [Member] | Buildings and improvements [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 5 years | ||
| American Airlines, Inc. [Member] | Minimum [Member] | Furniture, fixtures and other equipment [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 3 years | ||
| American Airlines, Inc. [Member] | Minimum [Member] | Capitalized software [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 5 years | ||
| American Airlines, Inc. [Member] | Maximum [Member] | Aircraft, engines and related rotable parts [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Residual value percentage of equipment and properties | 10.00% | ||
| Estimated useful life | 30 years | ||
| American Airlines, Inc. [Member] | Maximum [Member] | Buildings and improvements [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 30 years | ||
| American Airlines, Inc. [Member] | Maximum [Member] | Furniture, fixtures and other equipment [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 10 years | ||
| American Airlines, Inc. [Member] | Maximum [Member] | Capitalized software [Member] | |||
| Property, Plant and Equipment [Line Items] | |||
| Estimated useful life | 10 years | ||
| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost. No definition available.
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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Basis of Presentation and Summary of Significant Accounting Policies - Finite-Lived Intangible Assets (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Accumulated amortization | $ (663) | $ (622) |
| Total | 279 | 320 |
| American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Accumulated amortization | (663) | (622) |
| Total | 279 | 320 |
| Domestic airport slots [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 365 | 365 |
| Useful life of intangible assets | 25 years | |
| Domestic airport slots [Member] | American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 365 | 365 |
| Useful life of intangible assets | 25 years | |
| Customer relationships [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 300 | 300 |
| Useful life of intangible assets | 9 years | |
| Customer relationships [Member] | American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 300 | 300 |
| Useful life of intangible assets | 9 years | |
| Marketing agreements [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 105 | 105 |
| Useful life of intangible assets | 30 years | |
| Marketing agreements [Member] | American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 105 | 105 |
| Useful life of intangible assets | 30 years | |
| Tradenames [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 35 | 35 |
| Tradenames [Member] | American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | 35 | 35 |
| Airport gate leasehold rights [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 137 | 137 |
| Useful life of intangible assets | 25 years | |
| Airport gate leasehold rights [Member] | American Airlines, Inc. [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, gross | $ 137 | $ 137 |
| Useful life of intangible assets | 25 years |
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Basis of Presentation and Summary of Significant Accounting Policies - Finite-Lived Intangible Assets Amortization Expense (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Finite-Lived Intangible Assets [Line Items] | |||
| Amortization expense | $ 41 | $ 44 | $ 76 |
| 2019 | 41 | ||
| 2020 | 41 | ||
| 2021 | 41 | ||
| 2022 | 41 | ||
| 2023 | 7 | ||
| 2024 and thereafter | 108 | ||
| Total | 279 | 320 | |
| American Airlines, Inc. [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Amortization expense | 41 | 44 | $ 76 |
| 2019 | 41 | ||
| 2020 | 41 | ||
| 2021 | 41 | ||
| 2022 | 41 | ||
| 2023 | 7 | ||
| 2024 and thereafter | 108 | ||
| Total | $ 279 | $ 320 | |
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Basis of Presentation and Summary of Significant Accounting Policies - Significant Categories of Reported Operating Revenues (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | $ 10,938 | $ 11,559 | $ 11,643 | $ 10,401 | $ 10,611 | $ 10,965 | $ 11,227 | $ 9,820 | $ 44,541 | $ 42,622 | $ 40,142 |
| Passenger [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 40,676 | 39,131 | 37,045 | ||||||||
| Passenger travel [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 37,457 | 36,152 | 34,278 | ||||||||
| Loyalty revenue - travel [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 3,219 | 2,979 | 2,767 | ||||||||
| Cargo [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 1,013 | 890 | 785 | ||||||||
| Other [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 2,852 | 2,601 | 2,312 | ||||||||
| Loyalty revenue - marketing services [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 2,352 | 2,124 | 1,872 | ||||||||
| Other revenue [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 500 | 477 | 440 | ||||||||
| American Airlines, Inc. [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | $ 10,936 | $ 11,556 | $ 11,640 | $ 10,398 | $ 10,607 | $ 10,962 | $ 11,224 | $ 9,817 | 44,530 | 42,610 | 40,125 |
| American Airlines, Inc. [Member] | Passenger [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 40,676 | 39,131 | 37,045 | ||||||||
| American Airlines, Inc. [Member] | Passenger travel [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 37,457 | 36,152 | 34,278 | ||||||||
| American Airlines, Inc. [Member] | Loyalty revenue - travel [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 3,219 | 2,979 | 2,767 | ||||||||
| American Airlines, Inc. [Member] | Cargo [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 1,013 | 890 | 785 | ||||||||
| American Airlines, Inc. [Member] | Other [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 2,841 | 2,589 | 2,295 | ||||||||
| American Airlines, Inc. [Member] | Loyalty revenue - marketing services [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | 2,352 | 2,124 | 1,872 | ||||||||
| American Airlines, Inc. [Member] | Other revenue [Member] | |||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Total operating revenues | $ 489 | $ 465 | $ 423 | ||||||||
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
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Basis of Presentation and Summary of Significant Accounting Policies - Passenger Revenue by Geographic Region (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | $ 10,938 | $ 11,559 | $ 11,643 | $ 10,401 | $ 10,611 | $ 10,965 | $ 11,227 | $ 9,820 | $ 44,541 | $ 42,622 | $ 40,142 |
| Passenger [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 40,676 | 39,131 | 37,045 | ||||||||
| Passenger [Member] | Domestic [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 29,573 | 28,749 | 27,202 | ||||||||
| Passenger [Member] | Latin America [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 5,125 | 4,840 | 4,676 | ||||||||
| Passenger [Member] | Atlantic [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 4,376 | 4,028 | 3,873 | ||||||||
| Passenger [Member] | Pacific [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 1,602 | 1,514 | 1,294 | ||||||||
| American Airlines, Inc. [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | $ 10,936 | $ 11,556 | $ 11,640 | $ 10,398 | $ 10,607 | $ 10,962 | $ 11,224 | $ 9,817 | 44,530 | 42,610 | 40,125 |
| American Airlines, Inc. [Member] | Passenger [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 40,676 | 39,131 | 37,045 | ||||||||
| American Airlines, Inc. [Member] | Passenger [Member] | Domestic [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 29,573 | 28,749 | 27,202 | ||||||||
| American Airlines, Inc. [Member] | Passenger [Member] | Latin America [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 5,125 | 4,840 | 4,676 | ||||||||
| American Airlines, Inc. [Member] | Passenger [Member] | Atlantic [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | 4,376 | 4,028 | 3,873 | ||||||||
| American Airlines, Inc. [Member] | Passenger [Member] | Pacific [Member] | |||||||||||
| Airline Destination Disclosure [Line Items] | |||||||||||
| Operating revenues | $ 1,602 | $ 1,514 | $ 1,294 | ||||||||
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
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Basis of Presentation and Summary of Significant Accounting Policies - Significant Contract Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | $ 12,878 | $ 12,864 |
| Loyalty program [Member] | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | 8,539 | 8,822 |
| Air traffic [Member] | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | 4,339 | 4,042 |
| American Airlines, Inc. [Member] | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | 12,878 | 12,864 |
| American Airlines, Inc. [Member] | Loyalty program [Member] | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | 8,539 | 8,822 |
| American Airlines, Inc. [Member] | Air traffic [Member] | ||
| Disaggregation of Revenue [Line Items] | ||
| Contract balances, liability | $ 4,339 | $ 4,042 |
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Basis of Presentation and Summary of Significant Accounting Policies - Changes in Loyalty Program Liability (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Movement In Contract With Customer, Liability [Roll Forward] | ||
| Beginning balance | $ 12,864 | |
| Ending balance | 12,878 | |
| Loyalty program [Member] | ||
| Movement In Contract With Customer, Liability [Roll Forward] | ||
| Beginning balance | 8,822 | |
| Deferral of revenue | 3,083 | |
| Recognition of revenue | (3,366) | |
| Ending balance | $ 8,539 | |
| Inactive period before expiration of mileage credits | 18 months | |
| Customer liabilities | $ 3,267 | $ 3,121 |
| American Airlines, Inc. [Member] | ||
| Movement In Contract With Customer, Liability [Roll Forward] | ||
| Beginning balance | 12,864 | |
| Ending balance | 12,878 | |
| American Airlines, Inc. [Member] | Loyalty program [Member] | ||
| Movement In Contract With Customer, Liability [Roll Forward] | ||
| Beginning balance | 8,822 | |
| Deferral of revenue | 3,083 | |
| Recognition of revenue | (3,366) | |
| Ending balance | $ 8,539 | |
| Inactive period before expiration of mileage credits | 18 months | |
| Customer liabilities | $ 3,267 | $ 3,121 |
| X | ||||||||||
- Definition Contract with Customer, Liability, Increase from Deferral Of Revenue No definition available.
|
| X | ||||||||||
- Definition Inactive Period Before Expiration Of Mileage Credits No definition available.
|
| X | ||||||||||
- Definition Movement In Contract With Customer, Liability [Roll Forward] No definition available.
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
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Basis of Presentation and Summary of Significant Accounting Policies - Regional Expenses (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Regional Expenses [Line Items] | |||
| Aircraft fuel and related taxes | $ 8,053 | $ 6,128 | $ 5,071 |
| Salaries, wages and benefits | 12,251 | 11,954 | 10,967 |
| Maintenance, materials and repairs | 2,050 | 1,959 | 1,834 |
| Other rent and landing fees | 1,900 | 1,806 | 1,772 |
| Aircraft rent | 1,264 | 1,197 | 1,203 |
| Selling expenses | 1,520 | 1,477 | 1,323 |
| Depreciation and amortization | 1,839 | 1,702 | 1,525 |
| Other | 5,088 | 4,910 | 4,634 |
| Total regional expenses | $ 7,133 | 6,546 | 6,044 |
| Republic Holdings [Member] | |||
| Regional Expenses [Line Items] | |||
| Ownership interest | 25.00% | ||
| Regional Carrier [Member] | |||
| Regional Expenses [Line Items] | |||
| Aircraft fuel and related taxes | $ 1,843 | 1,382 | 1,109 |
| Salaries, wages and benefits | 1,591 | 1,452 | 1,333 |
| Capacity purchases from third-party regional carriers | 1,431 | 1,581 | 1,538 |
| Maintenance, materials and repairs | 340 | 281 | 345 |
| Other rent and landing fees | 610 | 625 | 564 |
| Aircraft rent | 32 | 35 | 36 |
| Selling expenses | 369 | 361 | 347 |
| Depreciation and amortization | 318 | 315 | 301 |
| Special items, net | 6 | 22 | 14 |
| Other | 593 | 492 | 457 |
| Total regional expenses | 7,133 | 6,546 | 6,044 |
| Regional Carrier [Member] | Republic [Member] | |||
| Regional Expenses [Line Items] | |||
| Capacity purchases from third-party regional carriers | 565 | ||
| American Airlines, Inc. [Member] | |||
| Regional Expenses [Line Items] | |||
| Aircraft fuel and related taxes | 8,053 | 6,128 | 5,071 |
| Salaries, wages and benefits | 12,240 | 11,942 | 10,958 |
| Maintenance, materials and repairs | 2,050 | 1,959 | 1,834 |
| Other rent and landing fees | 1,900 | 1,806 | 1,772 |
| Aircraft rent | 1,264 | 1,197 | 1,203 |
| Selling expenses | 1,520 | 1,477 | 1,323 |
| Depreciation and amortization | 1,839 | 1,702 | 1,525 |
| Other | 5,090 | 4,910 | 4,641 |
| Total regional expenses | $ 7,064 | 6,572 | 6,009 |
| American Airlines, Inc. [Member] | Republic Holdings [Member] | |||
| Regional Expenses [Line Items] | |||
| Ownership interest | 25.00% | ||
| American Airlines, Inc. [Member] | Regional Carrier [Member] | |||
| Regional Expenses [Line Items] | |||
| Aircraft fuel and related taxes | $ 1,843 | 1,382 | 1,109 |
| Salaries, wages and benefits | 338 | 356 | 327 |
| Capacity purchases from third-party regional carriers | 3,267 | 3,283 | 3,186 |
| Maintenance, materials and repairs | 8 | 7 | 4 |
| Other rent and landing fees | 583 | 602 | 487 |
| Aircraft rent | 27 | 27 | 28 |
| Selling expenses | 369 | 361 | 347 |
| Depreciation and amortization | 267 | 262 | 237 |
| Special items, net | 0 | 3 | 13 |
| Other | 362 | 289 | 271 |
| Total regional expenses | 7,064 | $ 6,572 | $ 6,009 |
| American Airlines, Inc. [Member] | Regional Carrier [Member] | Republic [Member] | |||
| Regional Expenses [Line Items] | |||
| Capacity purchases from third-party regional carriers | $ 565 | ||
| X | ||||||||||
- Definition Capacity Purchases No definition available.
|
| X | ||||||||||
- Definition Regional Expenses [Line Items] No definition available.
|
| X | ||||||||||
- Definition Significant and non-routine operating expenses (credits) such as asset impairments and restructuring charges that may not be an indicator of future cash flows. No definition available.
|
| X | ||||||||||
- Definition Maintenance costs incurred and directly related to services rendered by an entity during the reporting period. Includes the cost of inspections and repairs, materials and routine maintenance costs for all aircraft and engines. No definition available.
|
| X | ||||||||||
- Definition Expenses incurred related to the lease of aircraft from outside third parties that are used in the entity's business operations. No definition available.
|
| X | ||||||||||
- Definition Costs incurred related to air services provided by third-party transportation companies, including regional affiliates. No definition available.
|
| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Direct costs incurred at airports in which the entity conducts flight operations. The costs primarily consist of fees paid to the airport authority for takeoff and landing, gate space and facilities, allocations of common space such as security and other terminal costs and fuel storage facilities. No definition available.
|
| X | ||||||||||
- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate total amount of expenses directly related to the marketing or selling of products or services. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
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|
Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
$ / shares
|
Sep. 30, 2018
USD ($)
|
Jun. 30, 2018
USD ($)
|
Mar. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
$ / shares
|
Sep. 30, 2017
USD ($)
|
Jun. 30, 2017
USD ($)
|
Mar. 31, 2017
USD ($)
|
Dec. 31, 2018
USD ($)
component
Reporting_Unit
$ / shares
|
Dec. 31, 2017
USD ($)
$ / shares
|
Dec. 31, 2016
USD ($)
|
|
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Common stock, par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 | |||||||
| Consolidated reporting unit | Reporting_Unit | 1 | ||||||||||
| Goodwill impairment | $ 0 | ||||||||||
| Goodwill | $ 4,091 | $ 4,091 | 4,091 | $ 4,091 | |||||||
| Indefinite lived intangible assets | 1,900 | 1,900 | 1,900 | 1,900 | |||||||
| Impairment of intangible assets, indefinite-lived (excluding goodwill) | $ 26 | ||||||||||
| Operating revenues | $ 10,938 | $ 11,559 | 11,643 | $ 10,401 | $ 10,611 | $ 10,965 | $ 11,227 | $ 9,820 | $ 44,541 | 42,622 | $ 40,142 |
| Contract receivables settlement duration | 7 days | ||||||||||
| Advertising expense | $ 128 | 135 | 116 | ||||||||
| Foreign currency gains (losses) | $ (55) | (4) | 1 | ||||||||
| Loyalty program [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Contract term | one to nine | ||||||||||
| Payment term | 30 days | ||||||||||
| Number of revenue components | component | 2 | ||||||||||
| Recognition of revenue | $ 3,366 | ||||||||||
| Loyalty revenue - marketing services [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Operating revenues | $ 2,352 | $ 2,124 | 1,872 | ||||||||
| Air traffic [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Contract term | one year | ||||||||||
| Recognition of revenue | $ 3,100 | ||||||||||
| American Airlines, Inc. [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Common stock, par value (in dollars per share) | $ / shares | $ 1.00 | $ 1 | $ 1.00 | $ 1 | |||||||
| Consolidated reporting unit | Reporting_Unit | 1 | ||||||||||
| Goodwill impairment | $ 0 | ||||||||||
| Goodwill | $ 4,091 | $ 4,091 | 4,091 | $ 4,091 | |||||||
| Indefinite lived intangible assets | 1,900 | 1,900 | 1,900 | 1,900 | |||||||
| Impairment of intangible assets, indefinite-lived (excluding goodwill) | 26 | ||||||||||
| Operating revenues | $ 10,936 | $ 11,556 | $ 11,640 | $ 10,398 | $ 10,607 | $ 10,962 | $ 11,224 | $ 9,817 | $ 44,530 | 42,610 | 40,125 |
| Contract receivables settlement duration | 7 days | ||||||||||
| Advertising expense | $ 128 | 135 | 116 | ||||||||
| Foreign currency gains (losses) | $ (54) | (4) | 1 | ||||||||
| American Airlines, Inc. [Member] | Loyalty program [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Contract term | one to nine years | ||||||||||
| Payment term | 30 days | ||||||||||
| Number of revenue components | component | 2 | ||||||||||
| Recognition of revenue | $ 3,366 | ||||||||||
| American Airlines, Inc. [Member] | Loyalty revenue - marketing services [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Operating revenues | $ 2,352 | $ 2,124 | $ 1,872 | ||||||||
| American Airlines, Inc. [Member] | Air traffic [Member] | |||||||||||
| Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] | |||||||||||
| Contract term | one year | ||||||||||
| Recognition of revenue | $ 3,100 | ||||||||||
| X | ||||||||||
- Definition Contract Receivables Settlement Duration No definition available.
|
| X | ||||||||||
- Definition Number Of Revenue Components No definition available.
|
| X | ||||||||||
- Definition Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] No definition available.
|
| X | ||||||||||
- Definition Revenue, Performance Obligation, Payment Term No definition available.
|
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. No definition available.
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Special Items, Net (Details) $ in Millions |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
$ / Employees
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
$ / Employees
|
Dec. 31, 2016
USD ($)
|
|
| Restructuring Cost and Reserve [Line Items] | |||||
| Fleet restructuring expenses | $ 146 | $ 58 | $ 422 | $ 232 | $ 177 |
| Merger integration expenses | 81 | 81 | 268 | 273 | 514 |
| Severance expenses | 37 | 58 | 0 | 0 | |
| Litigation settlement | 45 | 0 | 0 | ||
| Intangible asset impairment | 26 | 0 | 0 | ||
| Labor contract expenses | 13 | 46 | 0 | ||
| Mark-to-market adjustments for bankruptcy obligations, net | (37) | 20 | (76) | 27 | 25 |
| Employee 2017 Tax Act bonus expense | 149 | ||||
| Other operating charges (credits), net | 31 | 11 | (7) | ||
| Mainline operating special items, net | 787 | 712 | 709 | ||
| Regional operating special items, net | 6 | 22 | 14 | ||
| Operating special items, net | 793 | 734 | 723 | ||
| Mark-to-market adjustments on equity investments, net | 22 | 104 | 0 | 0 | |
| Debt refinancing and extinguishment charges | 13 | 22 | 49 | ||
| Other nonoperating credits, net | (4) | 0 | 0 | ||
| Nonoperating special items, net | 113 | 22 | 49 | ||
| Income tax special items | 18 | 0 | 0 | ||
| Impact of the 2017 Tax Act | $ 823 | 0 | 823 | 0 | |
| Income tax special items, net | 18 | 823 | 0 | ||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| American Airlines, Inc. [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Fleet restructuring expenses | 146 | $ 58 | 422 | 232 | 177 |
| Merger integration expenses | 81 | 81 | 268 | 273 | 514 |
| Severance expenses | 37 | 58 | 0 | 0 | |
| Litigation settlement | 45 | 0 | 0 | ||
| Intangible asset impairment | 26 | 0 | 0 | ||
| Labor contract expenses | 13 | 46 | 0 | ||
| Mark-to-market adjustments for bankruptcy obligations, net | (37) | 20 | (76) | 27 | 25 |
| Employee 2017 Tax Act bonus expense | 123 | ||||
| Other operating charges (credits), net | 31 | 11 | (7) | ||
| Mainline operating special items, net | 787 | 712 | 709 | ||
| Regional operating special items, net | 0 | 3 | 13 | ||
| Operating special items, net | 787 | 715 | 722 | ||
| Mark-to-market adjustments on equity investments, net | $ 22 | 104 | 0 | 0 | |
| Debt refinancing and extinguishment charges | 13 | 22 | 49 | ||
| Other nonoperating credits, net | (4) | 0 | 0 | ||
| Nonoperating special items, net | 113 | 22 | 49 | ||
| Income tax special items | 18 | 0 | 0 | ||
| Impact of the 2017 Tax Act | $ 924 | 0 | 924 | 0 | |
| Income tax special items, net | 18 | 924 | 0 | ||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| Foreign Tax Authority [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Income tax special items, net | 18 | ||||
| Foreign Tax Authority [Member] | American Airlines, Inc. [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Income tax special items, net | 18 | ||||
| Mainline [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Employee 2017 Tax Act bonus expense | 0 | $ 123 | 0 | ||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| Mainline [Member] | American Airlines, Inc. [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Employee 2017 Tax Act bonus expense | $ 0 | $ 123 | $ 0 | ||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| X | ||||||||||
- Definition Debt Refinancing And Debt Extinguishment Expense No definition available.
|
| X | ||||||||||
- Definition Employee Tax Reform Bonus, Amount No definition available.
|
| X | ||||||||||
- Definition Employee Tax Reform Bonus Expense No definition available.
|
| X | ||||||||||
- Definition Income taxes special items net. No definition available.
|
| X | ||||||||||
- Definition Labor Contract Expenses No definition available.
|
| X | ||||||||||
- Definition Mark-to Market Adjustments for Bankruptcy Obligations and Other No definition available.
|
| X | ||||||||||
- Definition Nonoperating net expenses (credits) recognized in the period that are infrequent in occurrence or unusual in nature. No definition available.
|
| X | ||||||||||
- Definition Other Non-Operating Special Items, Net No definition available.
|
| X | ||||||||||
- Definition Other Operating Special Charges, Net No definition available.
|
| X | ||||||||||
- Definition Other Tax Charges No definition available.
|
| X | ||||||||||
- Definition Restructuring And Other, Mainline No definition available.
|
| X | ||||||||||
- Definition Restructuring And Other, Net No definition available.
|
| X | ||||||||||
- Definition Restructuring And Other, Regional No definition available.
|
| X | ||||||||||
- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense No definition available.
|
| X | ||||||||||
- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. No definition available.
|
| X | ||||||||||
- Definition Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available.
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Basic EPS: | |||||||||||
| Net income | $ 325 | $ 372 | $ 556 | $ 159 | $ (583) | $ 661 | $ 864 | $ 340 | $ 1,412 | $ 1,282 | $ 2,584 |
| Weighted average common shares outstanding (in shares) | 460,589 | 460,526 | 463,533 | 472,297 | 477,165 | 484,772 | 490,818 | 503,902 | 464,236 | 489,164 | 552,308 |
| Basic EPS (in dollars per share) | $ 0.71 | $ 0.81 | $ 1.20 | $ 0.34 | $ (1.22) | $ 1.36 | $ 1.76 | $ 0.67 | $ 3.04 | $ 2.62 | $ 4.68 |
| Diluted EPS: | |||||||||||
| Net income for purposes of computing diluted EPS | $ 1,412 | $ 1,282 | $ 2,584 | ||||||||
| Share computation for diluted EPS: | |||||||||||
| Basic weighted average common shares outstanding (in shares) | 460,589 | 460,526 | 463,533 | 472,297 | 477,165 | 484,772 | 490,818 | 503,902 | 464,236 | 489,164 | 552,308 |
| Dilutive effect of stock awards (in shares) | 1,424 | 2,528 | 3,791 | ||||||||
| Diluted weighted average common shares outstanding (in shares) | 461,915 | 461,507 | 464,618 | 474,598 | 477,165 | 486,625 | 492,965 | 507,797 | 465,660 | 491,692 | 556,099 |
| Diluted EPS (in dollars per share) | $ 0.70 | $ 0.81 | $ 1.20 | $ 0.34 | $ (1.22) | $ 1.36 | $ 1.75 | $ 0.67 | $ 3.03 | $ 2.61 | $ 4.65 |
| Restricted stock unit awards excluded from the calculation of diluted EPS because inclusion would be antidilutive (in shares) | 1,266 | 328 | 1,429 | ||||||||
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
Share Repurchase Programs and Dividends - Share Repurchase Programs (Details) |
12 Months Ended | 42 Months Ended | 54 Months Ended | |||
|---|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
$ / shares
shares
|
Dec. 31, 2017
USD ($)
$ / shares
shares
|
Dec. 31, 2016
USD ($)
$ / shares
shares
|
Dec. 31, 2017
USD ($)
$ / shares
shares
|
Dec. 31, 2018
USD ($)
program
|
Apr. 30, 2018
USD ($)
|
|
| Equity, Class of Treasury Stock [Line Items] | ||||||
| Stock repurchase programs, authorized amount | $ 13,000,000,000 | $ 13,000,000,000 | ||||
| Number of share repurchase programs authorized | program | 7 | |||||
| Stock repurchased (in shares) | shares | 16,606,157 | 33,900,000 | 119,823,621 | 278,900,000 | ||
| Aggregate stock repurchase price | $ 799,000,000 | $ 1,563,000,000 | $ 4,416,000,000 | $ 11,300,000,000 | ||
| Average cost per share (in dollars per share) | $ / shares | $ 45.68 | $ 36.86 | $ 40.69 | |||
| Share Repurchase Program April 2018 [Member] | ||||||
| Equity, Class of Treasury Stock [Line Items] | ||||||
| Stock repurchase programs, authorized amount | $ 2,000,000,000.0 | |||||
| Stock repurchase programs, remaining authorized amount | $ 1,700,000,000 | $ 1,700,000,000 | ||||
| Stock repurchased (in shares) | shares | 16,600,000 | |||||
| Aggregate stock repurchase price | $ 800,000,000 | |||||
| Average cost per share (in dollars per share) | $ / shares | $ 48.15 | |||||
| X | ||||||||||
- Definition Number of Share Repurchase Programs Authorized No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
- Definition Amount remaining of a stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Share Repurchase Programs and Dividends - Dividends (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Equity [Abstract] | |||||||||||||||
| Dividends declared on common stock (in dollars per share) | $ 0.10 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.4 | $ 0.4 | $ 0.4 |
| Cash paid | $ 186 | $ 198 | $ 224 | ||||||||||||
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Debt - Components of Long-Term Debt (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 24,001 | $ 24,530 |
| Less: Total unamortized debt discount, premium and issuance costs | 222 | 236 |
| Less: Current maturities | 3,213 | 2,476 |
| Long-term debt, net of current maturities | 20,566 | 21,818 |
| Secured Debt [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 22,751 | 22,780 |
| Secured Debt [Member] | 2013 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,825 | 1,825 |
| Variable interest rate | 4.26% | |
| Secured Debt [Member] | 2014 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,215 | 728 |
| Variable interest rate | 4.39% | |
| Secured Debt [Member] | April 2016 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 980 | 990 |
| Variable interest rate | 4.52% | |
| Secured Debt [Member] | December 2016 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,225 | 1,238 |
| Variable interest rate | 4.46% | |
| Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 11,648 | 11,881 |
| Average interest rate | 4.21% | |
| Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 3.00% | |
| Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 9.01% | |
| Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 5,060 | 5,259 |
| Average interest rate | 4.26% | |
| Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 2.34% | |
| Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 8.48% | |
| Secured Debt [Member] | Special Facility Revenue Bonds [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 798 | 857 |
| Secured Debt [Member] | Special Facility Revenue Bonds [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 5.00% | |
| Secured Debt [Member] | Special Facility Revenue Bonds [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 8.00% | |
| Secured Debt [Member] | Other Secured Obligations [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 0 | 2 |
| Unsecured Debt [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 1,250 | 1,750 |
| Unsecured Debt [Member] | Senior Notes 5.50% Due in 2019 [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 750 | 750 |
| Fixed interest rate | 5.50% | |
| Unsecured Debt [Member] | Senior Notes 4.625% Due in 2020 [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 500 | 500 |
| Fixed interest rate | 4.625% | |
| Unsecured Debt [Member] | Senior Notes 6.125% Due in 2018 [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 0 | $ 500 |
| Fixed interest rate | 6.125% | |
| American Airlines, Inc. [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 22,722 | |
| Less: Total unamortized debt discount, premium and issuance costs | 219 | $ 227 |
| Less: Current maturities | 2,466 | 1,980 |
| Long-term debt, net of current maturities | 20,037 | 20,543 |
| American Airlines, Inc. [Member] | Secured Debt [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | 22,722 | 22,750 |
| American Airlines, Inc. [Member] | Secured Debt [Member] | 2013 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,825 | 1,825 |
| Variable interest rate | 4.26% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | 2014 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,215 | 728 |
| Variable interest rate | 4.39% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | April 2016 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 980 | 990 |
| Variable interest rate | 4.52% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | December 2016 Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 1,225 | 1,238 |
| Variable interest rate | 4.46% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 11,648 | 11,881 |
| Average interest rate | 4.21% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 3.00% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 9.01% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 5,060 | 5,259 |
| Average interest rate | 4.26% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 2.34% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Equipment Loans and Other Notes Payable [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 8.48% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Special Facility Revenue Bonds [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 769 | 828 |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Special Facility Revenue Bonds [Member] | Minimum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 5.00% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Special Facility Revenue Bonds [Member] | Maximum [Member] | ||
| Debt Instrument [Line Items] | ||
| Fixed interest rate | 5.00% | |
| American Airlines, Inc. [Member] | Secured Debt [Member] | Other Secured Obligations [Member] | ||
| Debt Instrument [Line Items] | ||
| Total long-term debt | $ 0 | $ 1 |
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average interest rate of debt outstanding. No definition available.
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
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| X | ||||||||||
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|
Debt - Summary of Availability under Revolving Credit Facilities (Details) - Secured Debt [Member] - Revolving Credit Facility [Member] |
Dec. 31, 2018
USD ($)
|
|---|---|
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | $ 2,842,500,000.0 |
| 2013 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 1,000,000,000 |
| 2014 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 1,542,500,000.0 |
| April 2016 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 300,000,000 |
| American Airlines, Inc. [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 2,842,500,000.0 |
| American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 1,000,000,000 |
| American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | 1,542,500,000.0 |
| American Airlines, Inc. [Member] | April 2016 Credit Facilities [Member] | |
| Line of Credit Facility [Line Items] | |
| Line of credit facility, maximum borrowing capacity | $ 300,000,000 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
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|
Debt - Schedule of Maturities of Long-Term Debt and Capital Leases (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Maturities of Long-term Debt and Capital Lease Obligations [Abstract] | ||
| 2019 | $ 3,258 | |
| 2020 | 2,320 | |
| 2021 | 3,411 | |
| 2022 | 1,346 | |
| 2023 | 3,894 | |
| 2024 and thereafter | 9,772 | |
| Total | 24,001 | $ 24,530 |
| American Airlines, Inc. [Member] | ||
| Maturities of Long-term Debt and Capital Lease Obligations [Abstract] | ||
| 2019 | 2,508 | |
| 2020 | 1,815 | |
| 2021 | 3,409 | |
| 2022 | 1,344 | |
| 2023 | 3,892 | |
| 2024 and thereafter | 9,754 | |
| Total | $ 22,722 |
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
|
Debt - 2013, 2014 and 2016 Credit Facilities (Details) - USD ($) |
1 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Nov. 30, 2018 |
Apr. 30, 2018 |
Dec. 31, 2018 |
May 31, 2018 |
Nov. 30, 2017 |
Oct. 31, 2017 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Dec. 31, 2017 |
|
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 20,566,000,000 | $ 20,566,000,000 | $ 21,818,000,000 | ||||||
| Revolving Credit Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility undrawn fee percentage | 0.625% | ||||||||
| Secured Debt [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Minimum aggregate liquidity required under debt covenant | $ 2,000,000,000 | ||||||||
| Secured Debt [Member] | Term Loan Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Annual installment repayment, percent or original principal balance | 1.00% | ||||||||
| Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,825,000,000 | $ 1,800,000,000 | $ 1,825,000,000 | ||||||
| Debt instrument principal amount | 1,900,000,000 | $ 1,900,000,000 | |||||||
| Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.00% | 1.75% | 1.75% | ||||||
| Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.00% | 0.75% | |||||||
| Secured Debt [Member] | Term Loan Facility [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,215,000,000 | $ 1,215,000,000 | |||||||
| Line of credit facility, incremental loan feature | $ 500,000,000 | ||||||||
| Debt instrument principal amount | 1,250,000,000 | $ 1,250,000,000 | |||||||
| Secured Debt [Member] | Term Loan Facility [Member] | 2014 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.00% | ||||||||
| Secured Debt [Member] | Term Loan Facility [Member] | April 2016 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 980,000,000 | $ 980,000,000 | |||||||
| Debt instrument principal amount | 1,000,000,000 | $ 1,000,000,000 | |||||||
| Secured Debt [Member] | Term Loan Facility [Member] | April 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.00% | ||||||||
| Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,225,000,000 | $ 1,300,000,000 | $ 1,225,000,000 | ||||||
| Debt instrument principal amount | 1,250,000,000 | $ 1,250,000,000 | |||||||
| Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.00% | 2.50% | 2.00% | ||||||
| Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.00% | 1.50% | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | 2,842,500,000.0 | $ 2,842,500,000.0 | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 0 | 0 | |||||||
| Reduced commitments | 200,000,000 | 200,000,000 | |||||||
| Line of credit facility, maximum borrowing capacity | $ 1,000,000,000 | $ 1,000,000,000 | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 0 | $ 0 | |||||||
| Line of credit facility, incremental loan feature | 543,000,000 | 543,000,000 | |||||||
| Line of credit facility, maximum borrowing capacity | $ 1,542,500,000.0 | $ 1,542,500,000.0 | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 0 | $ 0 | |||||||
| Line of credit facility, maximum borrowing capacity | $ 300,000,000 | $ 300,000,000 | |||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| Secured Debt [Member] | Letter of Credit [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | $ 100,000,000 | $ 100,000,000 | |||||||
| Secured Debt [Member] | Letter of Credit [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | 200,000,000 | 200,000,000 | |||||||
| American Airlines, Inc. [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 20,037,000,000 | $ 20,037,000,000 | $ 20,543,000,000 | ||||||
| American Airlines, Inc. [Member] | Revolving Credit Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility undrawn fee percentage | 0.625% | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Minimum aggregate liquidity required under debt covenant | $ 2,000,000,000 | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Annual installment repayment, percent or original principal balance | 1.00% | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 1,800,000,000 | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,825,000,000 | $ 1,825,000,000 | |||||||
| Basis spread on variable rate | 2.00% | 1.75% | 1.75% | ||||||
| Debt instrument principal amount | 1,900,000,000 | $ 1,900,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | 2013 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.00% | 0.75% | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,200,000,000 | 1,200,000,000 | |||||||
| Line of credit facility, incremental loan feature | $ 500,000,000 | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | 2014 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,215,000,000 | $ 1,215,000,000 | |||||||
| Basis spread on variable rate | 2.00% | ||||||||
| Debt instrument principal amount | 1,250,000,000 | $ 1,250,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | April 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 980,000,000 | $ 980,000,000 | |||||||
| Basis spread on variable rate | 2.00% | ||||||||
| Debt instrument principal amount | 1,000,000,000 | $ 1,000,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 1,300,000,000 | ||||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | 1,225,000,000 | $ 1,225,000,000 | |||||||
| Basis spread on variable rate | 2.00% | 2.50% | 2.00% | ||||||
| Debt instrument principal amount | 1,250,000,000 | $ 1,250,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Term Loan Facility [Member] | December 2016 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.00% | 1.50% | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | 2,842,500,000.0 | 2,842,500,000.0 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Reduced commitments | 200,000,000 | 200,000,000 | |||||||
| Line of credit facility, maximum borrowing capacity | 1,000,000,000 | 1,000,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 0 | $ 0 | |||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Line of credit facility, maximum borrowing capacity | $ 1,000,000,000 | $ 1,000,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2013 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, incremental loan feature | $ 543,000,000 | 543,000,000 | |||||||
| Line of credit facility, maximum borrowing capacity | 1,542,500,000.0 | 1,542,500,000.0 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 0 | $ 0 | |||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Line of credit facility, maximum borrowing capacity | $ 1,542,500,000.0 | $ 1,542,500,000.0 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | 2014 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | $ 300,000,000 | 300,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | LIBOR [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Long-term debt, net of current maturities | $ 0 | $ 0 | |||||||
| Basis spread on variable rate | 2.25% | 2.00% | 2.00% | ||||||
| Line of credit facility, maximum borrowing capacity | $ 300,000,000 | $ 300,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Revolving Credit Facility [Member] | April 2016 Credit Facilities [Member] | Base Rate [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Basis spread on variable rate | 1.25% | 1.00% | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Letter of Credit [Member] | 2013 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | $ 100,000,000 | 100,000,000 | |||||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | Letter of Credit [Member] | 2014 Credit Facilities [Member] | |||||||||
| Debt Instrument [Line Items] | |||||||||
| Line of credit facility, maximum borrowing capacity | $ 200,000,000 | $ 200,000,000 | |||||||
| X | ||||||||||
- Definition Debt Instrument, Annual Repayment, Percent of Principal Balance No definition available.
|
| X | ||||||||||
- Definition Debt Instrument, Restrictive Covenants, Minimum Aggregate Liquidity, Amount No definition available.
|
| X | ||||||||||
- Definition Line Of Credit Facility, Accordion Feature, Increase Limit No definition available.
|
| X | ||||||||||
- Definition Line of Credit Facility, Reduction In Commitments No definition available.
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. No definition available.
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Debt - 2017-2 EETCs (Details) - Enhanced Equipment Trust Certificates (EETC) [Member] - 2017-2 EETC [Member] $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
|
Oct. 31, 2017
USD ($)
trust
|
Jun. 30, 2018
USD ($)
Aircraft
|
Dec. 31, 2017
USD ($)
Aircraft
|
Apr. 30, 2018
Aircraft
|
|
| Debt Instrument [Line Items] | ||||
| Number of aircrafts financed through repurchased debt | 6 | |||
| Number of aircraft financed by debt issuance | 30 | |||
| American Airlines, Inc. [Member] | ||||
| Debt Instrument [Line Items] | ||||
| Number of pass through trusts issued | trust | 3 | |||
| Debt instrument principal amount | $ | $ 1,000 | |||
| Repayments of long-term debt | $ | $ 283 | $ 735 | ||
| Number of aircrafts financed through repurchased debt | 6 | 24 | ||
| Number of aircraft financed by debt issuance | 30 |
| X | ||||||||||
- Definition Number of aircraft financed by debt issuance. No definition available.
|
| X | ||||||||||
- Definition Number Of Aircrafts Financed Through Repurchased Debt No definition available.
|
| X | ||||||||||
- Definition Number Of Pass Through Trusts Issued No definition available.
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
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- Details
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- Details
|
Debt - 2017-2 EETCs - Certain Information (Details) - Enhanced Equipment Trust Certificates (EETC) [Member] |
Dec. 31, 2018
USD ($)
|
|---|---|
| 2017-2 EETC - Series AA [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 545,000,000 |
| Fixed interest rate | 3.35% |
| 2017-2 EETC - Series A [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 252,000,000 |
| Fixed interest rate | 3.60% |
| 2017-2 EETC - Series B [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 221,000,000 |
| Fixed interest rate | 3.70% |
| American Airlines, Inc. [Member] | 2017-2 EETC - Series AA [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 545,000,000 |
| Fixed interest rate | 3.35% |
| American Airlines, Inc. [Member] | 2017-2 EETC - Series A [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 252,000,000 |
| Fixed interest rate | 3.60% |
| American Airlines, Inc. [Member] | 2017-2 EETC - Series B [Member] | |
| Debt Instrument [Line Items] | |
| Debt instrument, aggregate principal issued | $ 221,000,000 |
| Fixed interest rate | 3.70% |
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
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Debt - 2012-2C(R) EETCs (Details) - Enhanced Equipment Trust Certificates (EETC) [Member] |
Dec. 31, 2018
USD ($)
|
May 15, 2018
USD ($)
|
Jun. 06, 2013
USD ($)
Aircraft
|
|---|---|---|---|
| 2012-2 Class C(R) EETC [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt instrument principal amount | $ 100,000,000 | $ 100,000,000 | |
| Number of aircraft financed by debt issuance | Aircraft | 11 | ||
| Class C Certificates [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt instrument principal amount | $ 100,000,000 | ||
| American Airlines, Inc. [Member] | 2012-2 Class C(R) EETC [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt instrument principal amount | $ 100,000,000 | $ 100,000,000 | |
| Number of aircraft financed by debt issuance | Aircraft | 11 | ||
| American Airlines, Inc. [Member] | Class C Certificates [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt instrument principal amount | $ 100,000,000 |
| X | ||||||||||
- Definition Number of aircraft financed by debt issuance. No definition available.
|
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
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Debt - 2012-2C(R) EETCs - Certain Information (Details) - Enhanced Equipment Trust Certificates (EETC) [Member] - 2012-2C(R) EETC - Series C(R) [Member] - USD ($) |
Dec. 31, 2018 |
May 15, 2018 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Debt instrument, aggregate principal issued | $ 100,000,000 | $ 100,000,000 |
| Fixed interest rate | 4.70% | |
| American Airlines, Inc. [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt instrument, aggregate principal issued | $ 100,000,000 | $ 100,000,000 |
| Fixed interest rate | 4.70% |
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Debt - Equipment Loans and Other Notes Payable Issued in 2018 (Details) - Secured Debt [Member] - Equipment Loans and Other Notes Payable [Member] $ in Billions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Debt Instrument [Line Items] | |
| Proceeds from notes payable | $ 1.5 |
| LIBOR [Member] | |
| Debt Instrument [Line Items] | |
| Long-term debt average interest rate | 4.28% |
| American Airlines, Inc. [Member] | |
| Debt Instrument [Line Items] | |
| Proceeds from notes payable | $ 1.5 |
| American Airlines, Inc. [Member] | LIBOR [Member] | |
| Debt Instrument [Line Items] | |
| Long-term debt average interest rate | 4.28% |
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- Definition Long term debt average interest rate. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The cash inflow from borrowings supported by a written promise to pay an obligation that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt - Senior Notes (Details) - Unsecured Debt [Member] |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Senior Notes 5.50% Due in 2019 [Member] | |
| Debt Instrument [Line Items] | |
| Fixed interest rate | 5.50% |
| Principal amount | $ 750,000,000 |
| Senior Notes 4.625% Due in 2020 [Member] | |
| Debt Instrument [Line Items] | |
| Fixed interest rate | 4.625% |
| Principal amount | $ 500,000,000 |
| Senior Notes [Member] | |
| Debt Instrument [Line Items] | |
| Redemption price percentage | 101.00% |
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt - Guarantees (Details) |
Dec. 31, 2018
USD ($)
|
|---|---|
| Secured Debt [Member] | Special Facility Revenue Bonds [Member] | |
| Debt Instrument [Line Items] | |
| Guarantor obligations, maximum exposure, undiscounted | $ 769,000,000 |
| Secured Debt [Member] | Credit Facilities And Certain EETC Financings [Member] | |
| Debt Instrument [Line Items] | |
| Guarantor obligations, maximum exposure, undiscounted | $ 8,400,000,000 |
| Unsecured Debt [Member] | Senior Notes 5.50% Due in 2019 [Member] | |
| Debt Instrument [Line Items] | |
| Fixed interest rate | 5.50% |
| Unsecured Debt [Member] | Senior Notes 4.625% Due in 2020 [Member] | |
| Debt Instrument [Line Items] | |
| Fixed interest rate | 4.625% |
| American Airlines, Inc. [Member] | Unsecured Debt [Member] | Senior Notes 5.50% Due in 2019 [Member] | |
| Debt Instrument [Line Items] | |
| Guarantor obligations, maximum exposure, undiscounted | $ 750,000,000 |
| American Airlines, Inc. [Member] | Unsecured Debt [Member] | Senior Notes 4.625% Due in 2020 [Member] | |
| Debt Instrument [Line Items] | |
| Guarantor obligations, maximum exposure, undiscounted | $ 500,000,000 |
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Debt - Collateral-Related Covenants (Details) - Secured Debt [Member] |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| 2013 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 34.80% |
| 2014 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 18.80% |
| April 2016 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 40.90% |
| December 2016 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 57.50% |
| American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 34.80% |
| American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 18.80% |
| American Airlines, Inc. [Member] | April 2016 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 40.90% |
| American Airlines, Inc. [Member] | December 2016 Credit Facilities [Member] | |
| Debt Instrument [Line Items] | |
| LTV Multiplier | 1.6 |
| Maximum LTV | 62.50% |
| LTV as of Last Measurement Date | 57.50% |
| X | ||||||||||
- Definition Debt Instrument, Collateral Covenant, Loan-to-Value Ratio Multiplier No definition available.
|
| X | ||||||||||
- Definition Debt Instrument, Collateral Covenant, Maximum Loan-to-Value Ratio No definition available.
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| X | ||||||||||
- Definition LTV As Of measurement Date No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Leases - Components of Lease Expense (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Lessee, Lease, Description [Line Items] | |
| Operating lease cost | $ 1,907 |
| Finance lease cost: | |
| Amortization of assets | 78 |
| Interest on lease liabilities | 48 |
| Variable lease cost | 2,353 |
| Total net lease cost | 4,386 |
| American Airlines, Inc. [Member] | |
| Lessee, Lease, Description [Line Items] | |
| Operating lease cost | 1,889 |
| Finance lease cost: | |
| Amortization of assets | 78 |
| Interest on lease liabilities | 48 |
| Variable lease cost | 2,353 |
| Total net lease cost | $ 4,368 |
| X | ||||||||||
- References No definition available.
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- Definition Amount of interest expense on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of amortization expense attributable to right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Operating leases: | ||
| Operating lease ROU assets | $ 9,151 | $ 0 |
| Current operating lease liabilities | 1,654 | 0 |
| Noncurrent operating lease liabilities | 7,902 | 0 |
| Total operating lease liabilities | 9,556 | |
| Finance leases: | ||
| Property and equipment, at cost | 936 | |
| Accumulated amortization | (391) | |
| Property and equipment, net | 545 | |
| Current obligations of finance leases | 81 | |
| Finance leases, net of current obligations | 613 | |
| Total finance lease liabilities | $ 694 | |
| Weighted average remaining lease term: | ||
| Operating leases | 7 years 7 months 6 days | |
| Finance leases | 7 years 4 months 24 days | |
| Weighted average discount rate: | ||
| Operating leases | 4.60% | |
| Finance leases | 6.50% | |
| American Airlines, Inc. [Member] | ||
| Operating leases: | ||
| Operating lease ROU assets | $ 9,094 | 0 |
| Current operating lease liabilities | 1,639 | 0 |
| Noncurrent operating lease liabilities | 7,857 | $ 0 |
| Total operating lease liabilities | 9,496 | |
| Finance leases: | ||
| Property and equipment, at cost | 936 | |
| Accumulated amortization | (391) | |
| Property and equipment, net | 545 | |
| Current obligations of finance leases | 81 | |
| Finance leases, net of current obligations | 613 | |
| Total finance lease liabilities | $ 694 | |
| Weighted average remaining lease term: | ||
| Operating leases | 7 years 7 months 6 days | |
| Finance leases | 7 years 4 months 24 days | |
| Weighted average discount rate: | ||
| Operating leases | 4.60% | |
| Finance leases | 6.50% |
| X | ||||||||||
- Definition Finance Lease, Assets And Liabilities, Lessee [Abstract] No definition available.
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- Definition Finance Lease, Right-Of-Use Asset, Accumulated Depreciation No definition available.
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- Definition Finance Lease, Right-Of-Use Asset, Gross No definition available.
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- Definition Leases, Weighted Average Discount Rate [Abstract] No definition available.
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- Definition Operating Lease, Assets And Liabilities, Lessee [Abstract] No definition available.
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- Definition Weighted Average Remaining Lease Term [Abstract] No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for finance lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Leases - Supplemental Cash Flow and Other Information (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Cash paid for amounts included in the measurement of lease liabilities: | |
| Operating cash flows from operating leases | $ 1,931 |
| Operating cash flows from finance leases | 48 |
| Financing cash flows from finance leases | 78 |
| ROU assets obtained in exchange for lease liabilities: | |
| Operating leases | 1,292 |
| Gain on sale leaseback transactions, net | 59 |
| American Airlines, Inc. [Member] | |
| Cash paid for amounts included in the measurement of lease liabilities: | |
| Operating cash flows from operating leases | 1,914 |
| Operating cash flows from finance leases | 48 |
| Financing cash flows from finance leases | 78 |
| ROU assets obtained in exchange for lease liabilities: | |
| Operating leases | 1,258 |
| Gain on sale leaseback transactions, net | $ 59 |
| X | ||||||||||
- Definition Cash Flow, Lessee [Abstract] No definition available.
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| X | ||||||||||
- Definition Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] No definition available.
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- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of gain (loss) on sale and leaseback transaction from transfer of asset accounted for as sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Operating Leases | ||
| 2019 | $ 1,912 | |
| 2020 | 1,838 | |
| 2021 | 1,636 | |
| 2022 | 1,438 | |
| 2023 | 1,255 | |
| 2024 and thereafter | 3,620 | |
| Total lease payments | 11,699 | |
| Less: Imputed interest | (2,143) | |
| Total operating lease liabilities | 9,556 | |
| Less: Current obligations | (1,654) | $ 0 |
| Long-term lease obligations | 7,902 | 0 |
| Finance Leases | ||
| 2019 | 124 | |
| 2020 | 120 | |
| 2021 | 118 | |
| 2022 | 122 | |
| 2023 | 105 | |
| 2024 and thereafter | 282 | |
| Total lease payments | 871 | |
| Less: Imputed interest | (177) | |
| Total finance lease liabilities | 694 | |
| Less: Current obligations | (81) | |
| Long-term lease obligations | 613 | |
| American Airlines, Inc. [Member] | ||
| Operating Leases | ||
| 2019 | 1,894 | |
| 2020 | 1,824 | |
| 2021 | 1,625 | |
| 2022 | 1,428 | |
| 2023 | 1,250 | |
| 2024 and thereafter | 3,611 | |
| Total lease payments | 11,632 | |
| Less: Imputed interest | (2,136) | |
| Total operating lease liabilities | 9,496 | |
| Less: Current obligations | (1,639) | 0 |
| Long-term lease obligations | 7,857 | $ 0 |
| Finance Leases | ||
| 2019 | 124 | |
| 2020 | 120 | |
| 2021 | 118 | |
| 2022 | 122 | |
| 2023 | 105 | |
| 2024 and thereafter | 282 | |
| Total lease payments | 871 | |
| Less: Imputed interest | (177) | |
| Total finance lease liabilities | 694 | |
| Less: Current obligations | (81) | |
| Long-term lease obligations | $ 613 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in next fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
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|
Leases - Future Minimum Lease Payments (Details) $ in Millions |
Dec. 31, 2017
USD ($)
|
|---|---|
| Operating Leases | |
| 2018 | $ 2,572 |
| 2019 | 2,329 |
| 2020 | 2,104 |
| 2021 | 1,621 |
| 2022 | 1,398 |
| 2023 and thereafter | 3,965 |
| Total lease payments | 13,989 |
| Capital Leases | |
| 2018 | 126 |
| 2019 | 123 |
| 2020 | 120 |
| 2021 | 118 |
| 2022 | 122 |
| 2023 and thereafter | 387 |
| Total lease payments | 996 |
| Less: Imputed interest | (225) |
| Total lease obligations | 771 |
| Less: Current obligations | (78) |
| Long-term lease obligations | 693 |
| American Airlines, Inc. [Member] | |
| Operating Leases | |
| 2018 | 2,555 |
| 2019 | 2,321 |
| 2020 | 2,096 |
| 2021 | 1,613 |
| 2022 | 1,394 |
| 2023 and thereafter | 3,952 |
| Total lease payments | 13,931 |
| Capital Leases | |
| 2018 | 126 |
| 2019 | 123 |
| 2020 | 120 |
| 2021 | 118 |
| 2022 | 122 |
| 2023 and thereafter | 387 |
| Total lease payments | 996 |
| Less: Imputed interest | (225) |
| Total lease obligations | 771 |
| Less: Current obligations | (78) |
| Long-term lease obligations | $ 693 |
| X | ||||||||||
- Definition Amount of capital lease obligation due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount necessary to reduce net minimum lease payments to present value for capital leases. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of minimum lease payments for capital leases net of executory costs, which include amounts paid by the lessee to the lessor for insurance, maintenance and taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Leases - Additional Information (Details) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
Aircraft
|
Dec. 31, 2018
USD ($)
Aircraft
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
|
| Lessee, Lease, Description [Line Items] | ||||
| Number of leased aircraft | Aircraft | 660 | 660 | ||
| Operating lease cost | $ 1,907 | |||
| Operating lease commitments that have not yet commenced | $ 1,900 | $ 1,900 | ||
| Operating lease commitments that have not yet commenced, number of aircraft | Aircraft | 22 | 22 | ||
| Operating lease commitments that have not yet commenced, lease term | 10 years | 10 years | ||
| Operating lease rent expense | $ 3,200 | $ 3,200 | ||
| Republic Holdings [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Ownership interest | 25.00% | 25.00% | ||
| Republic [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease cost | $ 226 | |||
| American Airlines, Inc. [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Number of leased aircraft | Aircraft | 660 | 660 | ||
| Operating lease cost | $ 1,889 | |||
| Operating lease commitments that have not yet commenced | $ 1,900 | $ 1,900 | ||
| Operating lease commitments that have not yet commenced, number of aircraft | Aircraft | 22 | 22 | ||
| Operating lease commitments that have not yet commenced, lease term | 10 years | 10 years | ||
| Operating lease rent expense | $ 3,200 | $ 3,100 | ||
| American Airlines, Inc. [Member] | Republic Holdings [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Ownership interest | 25.00% | 25.00% | ||
| American Airlines, Inc. [Member] | Republic [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease cost | $ 226 | |||
| Minimum [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lease terms | 1 year | |||
| Minimum [Member] | American Airlines, Inc. [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lease terms | 1 year | |||
| Maximum [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lease terms | 12 years | |||
| Maximum [Member] | American Airlines, Inc. [Member] | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Lease terms | 12 years | |||
| X | ||||||||||
- Definition Lessee, Operating And Finance Lease, Term Of Contract No definition available.
|
| X | ||||||||||
- Definition Lessee, Operating Lease, Lease Not yet Commenced, Number Of Leased Aircraft No definition available.
|
| X | ||||||||||
- Definition Lessee, Operating Lease, Lease Not yet Commenced, Payments, Due No definition available.
|
| X | ||||||||||
- Definition Number Of Aircraft Operating Under Operating And Finance Lease No definition available.
|
| X | ||||||||||
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Income Taxes - Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Current income tax provision: | |||
| State and Local | $ 3 | $ 10 | $ 3 |
| Foreign | 29 | 14 | 9 |
| Current income tax provision | 32 | 24 | 12 |
| Deferred income tax provision: | |||
| Federal | 390 | 2,026 | 1,456 |
| State and Local | 50 | 63 | 100 |
| Deferred income tax provision | 440 | 2,089 | 1,556 |
| Total income tax provision | 472 | 2,113 | 1,568 |
| American Airlines, Inc. [Member] | |||
| Current income tax provision: | |||
| State and Local | 3 | 14 | 1 |
| Foreign | 28 | 10 | 9 |
| Current income tax provision | 31 | 24 | 10 |
| Deferred income tax provision: | |||
| Federal | 453 | 2,176 | 1,507 |
| State and Local | 50 | 70 | 90 |
| Deferred income tax provision | 503 | 2,246 | 1,597 |
| Total income tax provision | $ 534 | $ 2,270 | $ 1,607 |
| X | ||||||||||
- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Tax Disclosure [Line Items] | ||||
| Statutory income tax provision | $ 396 | $ 1,188 | $ 1,453 | |
| State income tax provision, net of federal tax effect | 44 | 59 | 56 | |
| Foreign income taxes, net of federal tax effect | 23 | 7 | 6 | |
| Book expenses not deductible for tax purposes | 12 | 33 | 35 | |
| Bankruptcy administration expenses | 0 | 1 | 1 | |
| 2017 Tax Act | 0 | 823 | 0 | |
| Change in valuation allowance | (6) | (3) | 7 | |
| Other, net | 3 | 5 | 10 | |
| Total income tax provision | 472 | 2,113 | 1,568 | |
| American Airlines, Inc. [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Statutory income tax provision | 460 | 1,244 | 1,504 | |
| State income tax provision, net of federal tax effect | 46 | 53 | 61 | |
| Foreign income taxes, net of federal tax effect | 22 | 6 | 6 | |
| Book expenses not deductible for tax purposes | 10 | 30 | 32 | |
| Bankruptcy administration expenses | 0 | 1 | 1 | |
| 2017 Tax Act | 0 | 924 | 0 | |
| Change in valuation allowance | $ (22) | (6) | 4 | (1) |
| Other, net | 2 | 8 | 4 | |
| Total income tax provision | $ 534 | $ 2,270 | $ 1,607 | |
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation Bankruptcy Administration Expenses No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Effect of Tax Cuts and Jobs Act of 2017, Amount No definition available.
|
| X | ||||||||||
- Definition Income Tax Disclosure [Line Items] No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Deferred tax assets: | ||
| Operating loss carryforwards | $ 2,343 | $ 2,281 |
| Leases | 2,189 | 107 |
| Pensions | 1,430 | 1,559 |
| Loyalty program liability | 1,770 | 1,809 |
| Alternative minimum tax (AMT) credit carryforwards | 175 | 344 |
| Postretirement benefits other than pensions | 145 | 170 |
| Rent expense | 136 | 160 |
| Reorganization items | 33 | 35 |
| Other | 631 | 678 |
| Total deferred tax assets | 8,852 | 7,143 |
| Valuation allowance | (30) | (36) |
| Net deferred tax assets | 8,822 | 7,107 |
| Deferred tax liabilities: | ||
| Accelerated depreciation and amortization | (5,280) | (5,045) |
| Leases | (2,081) | 0 |
| Other | (326) | (279) |
| Total deferred tax liabilities | (7,687) | (5,324) |
| Net deferred tax asset | 1,135 | 1,783 |
| American Airlines, Inc. [Member] | ||
| Deferred tax assets: | ||
| Operating loss carryforwards | 2,420 | 2,409 |
| Leases | 2,176 | 107 |
| Pensions | 1,421 | 1,549 |
| Loyalty program liability | 1,770 | 1,809 |
| Alternative minimum tax (AMT) credit carryforwards | 231 | 457 |
| Postretirement benefits other than pensions | 145 | 170 |
| Rent expense | 136 | 160 |
| Reorganization items | 33 | 35 |
| Other | 588 | 638 |
| Total deferred tax assets | 8,920 | 7,334 |
| Valuation allowance | (19) | (25) |
| Net deferred tax assets | 8,901 | 7,309 |
| Deferred tax liabilities: | ||
| Accelerated depreciation and amortization | (5,243) | (4,999) |
| Leases | (2,068) | 0 |
| Other | (321) | (274) |
| Total deferred tax liabilities | (7,632) | (5,273) |
| Net deferred tax asset | $ 1,269 | $ 2,036 |
| X | ||||||||||
- Definition Deferred Tax Assets, Leases No definition available.
|
| X | ||||||||||
- Definition Deferred Tax Liabilities Accelerated Depreciation And Amortization No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from frequent flier obligations. No definition available.
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred rent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Income Taxes - Additional Disclosures (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Taxes [Line Items] | |||||
| Increase (decrease) in valuation allowance | $ (6) | $ 7 | $ 7 | ||
| Valuation allowance, Tax Cuts And Jobs Act Of 2017, deferred tax asset, increase | 10 | ||||
| Income tax provision | $ 472 | 2,113 | 1,568 | ||
| Income tax expense, effective rate | 25.00% | ||||
| Change in valuation allowance | $ (6) | (3) | 7 | ||
| Special income tax charge | 18 | 823 | 0 | ||
| Impact of Tax Act, charge to reduce deferred tax assets | $ 823 | 0 | 823 | 0 | |
| Alternative Minimum Tax Credit Carryforward [Member] | |||||
| Income Taxes [Line Items] | |||||
| Alternative minimum tax credit carryforwards | $ 339 | 339 | |||
| Federal [Member] | |||||
| Income Taxes [Line Items] | |||||
| Gross NOL carryforwards | 10,200 | 10,200 | |||
| Federal NOL carryforwards, maximum allowable utilization | 9,000 | 9,000 | |||
| Federal NOL carryforwards, remaining amount | 8,400 | 8,400 | |||
| State [Member] | |||||
| Income Taxes [Line Items] | |||||
| Gross NOL carryforwards | 3,200 | 3,200 | |||
| Foreign Tax Authority [Member] | |||||
| Income Taxes [Line Items] | |||||
| Special income tax charge | 18 | ||||
| Alternative Minimum Tax Credit Carryforward [Member] | |||||
| Income Taxes [Line Items] | |||||
| Change in valuation allowance | (22) | ||||
| American Airlines, Inc. [Member] | |||||
| Income Taxes [Line Items] | |||||
| Increase (decrease) in valuation allowance | (6) | 12 | (1) | ||
| Valuation allowance, Tax Cuts And Jobs Act Of 2017, deferred tax asset, increase | 8 | ||||
| Income tax provision | $ 534 | 2,270 | 1,607 | ||
| Income tax expense, effective rate | 24.00% | ||||
| Change in valuation allowance | (22) | $ (6) | 4 | (1) | |
| Special income tax charge | 18 | 924 | 0 | ||
| Impact of Tax Act, charge to reduce deferred tax assets | $ 924 | 0 | $ 924 | $ 0 | |
| American Airlines, Inc. [Member] | Alternative Minimum Tax Credit Carryforward [Member] | |||||
| Income Taxes [Line Items] | |||||
| Alternative minimum tax credit carryforwards | 452 | 452 | |||
| American Airlines, Inc. [Member] | Federal [Member] | |||||
| Income Taxes [Line Items] | |||||
| Gross NOL carryforwards | 10,600 | 10,600 | |||
| Federal NOL carryforwards, maximum allowable utilization | 9,500 | 9,500 | |||
| Federal NOL carryforwards, remaining amount | 8,600 | 8,600 | |||
| American Airlines, Inc. [Member] | State [Member] | |||||
| Income Taxes [Line Items] | |||||
| Gross NOL carryforwards | $ 3,100 | 3,100 | |||
| American Airlines, Inc. [Member] | Foreign Tax Authority [Member] | |||||
| Income Taxes [Line Items] | |||||
| Special income tax charge | $ 18 | ||||
| X | ||||||||||
- Definition Income Taxes [Line Items] No definition available.
|
| X | ||||||||||
- Definition Income taxes special items net. No definition available.
|
| X | ||||||||||
- Definition Operating Loss Carryforwards Outstanding without Annual Limitations on Use No definition available.
|
| X | ||||||||||
- Definition Operating Loss Carryforwards without Annual Limitations on Use No definition available.
|
| X | ||||||||||
- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense No definition available.
|
| X | ||||||||||
- Definition Valuation Allowance, Tax Cuts And Jobs Act Of 2017, Deferred Tax Asset, Increase (Decrease), Amount No definition available.
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Risk Management - Additional Information (Details) $ in Billions |
Dec. 31, 2018
USD ($)
|
|---|---|
| Debt Instrument [Line Items] | |
| Principal amount of long-term variable rate debt | $ 9.9 |
| Variable Rate Debt [Member] | |
| Debt Instrument [Line Items] | |
| Weighted average effective interest rate on variable rate debt | 4.30% |
| American Airlines, Inc. [Member] | |
| Debt Instrument [Line Items] | |
| Principal amount of long-term variable rate debt | $ 9.9 |
| American Airlines, Inc. [Member] | Variable Rate Debt [Member] | |
| Debt Instrument [Line Items] | |
| Weighted average effective interest rate on variable rate debt | 4.30% |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Weighted average interest rate of debt outstanding. No definition available.
|
| X | ||||||||||
- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. No definition available.
|
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Fair Value Measurements and Other Investments - Summary of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | $ 4,485 | $ 4,771 |
| China Southern Airlines [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Ownership interest | 2.20% | |
| Recurring [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | $ 4,485 | 4,771 |
| Restricted cash and short-term investments | 154 | 318 |
| Long-term investments | 189 | |
| Total | 4,828 | 5,089 |
| Recurring [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 16 | 188 |
| Restricted cash and short-term investments | 12 | 108 |
| Long-term investments | 189 | |
| Total | 217 | 296 |
| Recurring [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 4,469 | 4,583 |
| Restricted cash and short-term investments | 142 | 210 |
| Long-term investments | 0 | |
| Total | 4,611 | 4,793 |
| Recurring [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Restricted cash and short-term investments | 0 | 0 |
| Long-term investments | 0 | |
| Total | 0 | 0 |
| Recurring [Member] | Money Market Funds [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 16 | 188 |
| Recurring [Member] | Money Market Funds [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 16 | 188 |
| Recurring [Member] | Money Market Funds [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Money Market Funds [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Corporate debt [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 1,658 | 1,620 |
| Recurring [Member] | Corporate debt [Member] | Maturity Dates Exceeding One Year [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 101 | 341 |
| Recurring [Member] | Corporate debt [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Corporate debt [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 1,658 | 1,620 |
| Recurring [Member] | Corporate debt [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 2,436 | 2,663 |
| Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Maturity Dates Exceeding One Year [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 877 | 700 |
| Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 2,436 | 2,663 |
| Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Repurchase Agreements [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 375 | 300 |
| Recurring [Member] | Repurchase Agreements [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Recurring [Member] | Repurchase Agreements [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 375 | 300 |
| Recurring [Member] | Repurchase Agreements [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | $ 4,482 | 4,768 |
| American Airlines, Inc. [Member] | China Southern Airlines [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Ownership interest | 2.20% | |
| American Airlines, Inc. [Member] | Recurring [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | $ 4,482 | 4,768 |
| Restricted cash and short-term investments | 154 | 318 |
| Long-term investments | 189 | |
| Total | 4,825 | 5,086 |
| American Airlines, Inc. [Member] | Recurring [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 14 | 186 |
| Restricted cash and short-term investments | 12 | 108 |
| Long-term investments | 189 | |
| Total | 215 | 294 |
| American Airlines, Inc. [Member] | Recurring [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 4,468 | 4,582 |
| Restricted cash and short-term investments | 142 | 210 |
| Long-term investments | 0 | |
| Total | 4,610 | 4,792 |
| American Airlines, Inc. [Member] | Recurring [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| Restricted cash and short-term investments | 0 | 0 |
| Long-term investments | 0 | |
| Total | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Money Market Funds [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 14 | 186 |
| American Airlines, Inc. [Member] | Recurring [Member] | Money Market Funds [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 14 | 186 |
| American Airlines, Inc. [Member] | Recurring [Member] | Money Market Funds [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Money Market Funds [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Corporate debt [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 1,658 | 1,620 |
| American Airlines, Inc. [Member] | Recurring [Member] | Corporate debt [Member] | Maturity Dates Exceeding One Year [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 101 | 341 |
| American Airlines, Inc. [Member] | Recurring [Member] | Corporate debt [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Corporate debt [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 1,658 | 1,620 |
| American Airlines, Inc. [Member] | Recurring [Member] | Corporate debt [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 2,435 | 2,662 |
| American Airlines, Inc. [Member] | Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Maturity Dates Exceeding One Year [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 877 | 700 |
| American Airlines, Inc. [Member] | Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 2,435 | 2,662 |
| American Airlines, Inc. [Member] | Recurring [Member] | Bank Notes / Certificates of Deposit / Time Deposits [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Repurchase Agreements [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 375 | 300 |
| American Airlines, Inc. [Member] | Recurring [Member] | Repurchase Agreements [Member] | Level 1 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 0 | 0 |
| American Airlines, Inc. [Member] | Recurring [Member] | Repurchase Agreements [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | 375 | 300 |
| American Airlines, Inc. [Member] | Recurring [Member] | Repurchase Agreements [Member] | Level 3 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Short-term investments | $ 0 | $ 0 |
| X | ||||||||||
- Definition Investment, Ownership Percentage No definition available.
|
| X | ||||||||||
- Definition Restricted Cash and Cash Equivalents and Short-Term Investments, Fair Value Disclosure No definition available.
|
| X | ||||||||||
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Fair Value Measurements and Other Investments - Schedule of Carrying Value and Estimated Fair Value of Long-Term Debt, Including Current Maturities (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Carrying Value [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Long-term debt, including current maturities | $ 23,779 | $ 24,294 |
| Fair Value [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Long-term debt, including current maturities | 23,775 | 24,985 |
| American Airlines, Inc. [Member] | Carrying Value [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Long-term debt, including current maturities | 22,503 | 22,523 |
| American Airlines, Inc. [Member] | Fair Value [Member] | Level 2 [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Long-term debt, including current maturities | $ 22,497 | $ 23,165 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
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Employee Benefit Plans - Additional Information (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2012 |
|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Increase (decrease) for plan amendment | $ (1,900,000,000) | |||
| Amortization period of gains losses related to plan amendment | 8 years | |||
| Unamortized actuarial gain | $ 390,000,000 | |||
| Weighted average expected rate of return on plan assets | 8.00% | |||
| Estimated future employer contributions for next fiscal year | $ 786,000,000 | |||
| Defined benefit plans estimated supplemental future employer contributions in next fiscal year | 21,000,000 | |||
| Pension Benefits [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| The estimated actuarial gain (loss) and prior service benefit (cost) that will be amortized into net periodic benefit cost over the next fiscal year | $ (181,000,000) | |||
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% | |
| Retiree Medical And Other Postretirement Benefits [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| The estimated actuarial gain (loss) and prior service benefit (cost) that will be amortized into net periodic benefit cost over the next fiscal year | $ 269,000,000 | |||
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% | |
| American Airlines, Inc. [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Increase (decrease) for plan amendment | $ (1,900,000,000) | |||
| Amortization period of gains losses related to plan amendment | 8 years | |||
| Unamortized actuarial gain | $ 390,000,000 | |||
| Estimated future employer contributions for next fiscal year | 780,000,000 | |||
| Defined benefit plans estimated supplemental future employer contributions in next fiscal year | 21,000,000 | |||
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| The estimated actuarial gain (loss) and prior service benefit (cost) that will be amortized into net periodic benefit cost over the next fiscal year | $ (181,000,000) | |||
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| The estimated actuarial gain (loss) and prior service benefit (cost) that will be amortized into net periodic benefit cost over the next fiscal year | $ 269,000,000 | |||
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% | |
| X | ||||||||||
- Definition Defined Benefit Plan, Amortization Period of Gains (Losses) Related to Plan Amendment No definition available.
|
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- Definition Defined Benefit Plans Estimated Supplemental Future Employer Contributions in Next Fiscal Year No definition available.
|
| X | ||||||||||
- Definition Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses) Related to Plan Amendment, Before Tax No definition available.
|
| X | ||||||||||
- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Pension Benefits [Member] | |||
| Reconciliation of benefit obligation: | |||
| Benefit obligation at beginning of period | $ 18,275 | $ 17,238 | |
| Service cost | 3 | 2 | $ 2 |
| Interest cost | 674 | 721 | 749 |
| Actuarial (gain) loss | (1,910) | 1,016 | |
| Settlements | (4) | (4) | |
| Benefit payments | (662) | (726) | |
| Other | 2 | 28 | |
| Benefit obligation at end of period | 16,378 | 18,275 | 17,238 |
| Retiree Medical And Other Postretirement Benefits [Member] | |||
| Reconciliation of benefit obligation: | |||
| Benefit obligation at beginning of period | 1,011 | 991 | |
| Service cost | 5 | 4 | 3 |
| Interest cost | 35 | 39 | 47 |
| Actuarial (gain) loss | (133) | 49 | |
| Settlements | 0 | 0 | |
| Benefit payments | (81) | (80) | |
| Other | 0 | 8 | |
| Benefit obligation at end of period | 837 | 1,011 | 991 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |||
| Reconciliation of benefit obligation: | |||
| Benefit obligation at beginning of period | 18,175 | 17,148 | |
| Service cost | 2 | 2 | 2 |
| Interest cost | 670 | 717 | 746 |
| Actuarial (gain) loss | (1,905) | 1,007 | |
| Settlements | (4) | (4) | |
| Benefit payments | (659) | (723) | |
| Other | 3 | 28 | |
| Benefit obligation at end of period | 16,282 | 18,175 | 17,148 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |||
| Reconciliation of benefit obligation: | |||
| Benefit obligation at beginning of period | 1,010 | 990 | |
| Service cost | 5 | 4 | 3 |
| Interest cost | 35 | 39 | 47 |
| Actuarial (gain) loss | (132) | 49 | |
| Settlements | 0 | 0 | |
| Benefit payments | (81) | (80) | |
| Other | 0 | 8 | |
| Benefit obligation at end of period | $ 837 | $ 1,010 | $ 990 |
| X | ||||||||||
- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change, classified as other. No definition available.
|
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Employee Benefit Plans - Schedule of Changes in Fair Value of Plan Assets (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Pension Benefits [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Fair value of plan assets at beginning of period | $ 11,395 | $ 10,017 |
| Actual return on plan assets | (1,151) | 1,797 |
| Employer contributions | 475 | 286 |
| Settlements | (4) | (4) |
| Benefit payments | (662) | (726) |
| Other | 0 | 25 |
| Fair value of plan assets at end of period | 10,053 | 11,395 |
| Funded status at end of period | (6,325) | (6,880) |
| Supplemental contributions by employer | 433 | 261 |
| Minimum required cash contribution | 42 | 25 |
| Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Fair value of plan assets at beginning of period | 295 | 266 |
| Actual return on plan assets | (24) | 37 |
| Employer contributions | 35 | 72 |
| Settlements | 0 | 0 |
| Benefit payments | (81) | (80) |
| Other | 0 | 0 |
| Fair value of plan assets at end of period | 225 | 295 |
| Funded status at end of period | (612) | (716) |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Fair value of plan assets at beginning of period | 11,340 | 9,968 |
| Actual return on plan assets | (1,148) | 1,788 |
| Employer contributions | 472 | 286 |
| Settlements | (4) | (4) |
| Benefit payments | (659) | (723) |
| Other | 0 | 25 |
| Fair value of plan assets at end of period | 10,001 | 11,340 |
| Funded status at end of period | (6,281) | (6,835) |
| Supplemental contributions by employer | 433 | 261 |
| Minimum required cash contribution | 39 | 25 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ||
| Fair value of plan assets at beginning of period | 295 | 266 |
| Actual return on plan assets | (24) | 37 |
| Employer contributions | 35 | 72 |
| Settlements | 0 | 0 |
| Benefit payments | (81) | (80) |
| Other | 0 | 0 |
| Fair value of plan assets at end of period | 225 | 295 |
| Funded status at end of period | $ (612) | $ (715) |
| X | ||||||||||
- Definition Defined benefit plan minimum contributions by employer. No definition available.
|
| X | ||||||||||
- Definition Defined benefit plan, supplemental contributions by employer. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan. No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Amounts Recognized in Consolidated Balance Sheets (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Noncurrent liability | $ 6,907 | $ 7,497 |
| Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liability | 7 | 10 |
| Noncurrent liability | 6,318 | 6,870 |
| Total liabilities | 6,325 | 6,880 |
| Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liability | 23 | 89 |
| Noncurrent liability | 589 | 627 |
| Total liabilities | 612 | 716 |
| American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Noncurrent liability | 6,863 | 7,452 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liability | 7 | 10 |
| Noncurrent liability | 6,274 | 6,825 |
| Total liabilities | 6,281 | 6,835 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liability | 23 | 88 |
| Noncurrent liability | 589 | 627 |
| Total liabilities | $ 612 | $ 715 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net actuarial loss (gain) | $ 5,356 | $ 5,351 |
| Prior service cost (benefit) | 131 | 160 |
| Total accumulated other comprehensive loss (income), pre-tax | 5,487 | 5,511 |
| Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net actuarial loss (gain) | (452) | (388) |
| Prior service cost (benefit) | (362) | (600) |
| Total accumulated other comprehensive loss (income), pre-tax | (814) | (988) |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net actuarial loss (gain) | 5,341 | 5,337 |
| Prior service cost (benefit) | 131 | 159 |
| Total accumulated other comprehensive loss (income), pre-tax | 5,472 | 5,496 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Net actuarial loss (gain) | (452) | (388) |
| Prior service cost (benefit) | (362) | (600) |
| Total accumulated other comprehensive loss (income), pre-tax | $ (814) | $ (988) |
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Projected benefit obligation | $ 16,351 | $ 18,245 |
| Accumulated benefit obligation | 16,341 | 18,235 |
| Fair value of plan assets | 10,023 | 11,364 |
| ABO less fair value of plan assets | 6,318 | 6,871 |
| Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Accumulated benefit obligation | 837 | 1,011 |
| Fair value of plan assets | 225 | 295 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Projected benefit obligation | 16,254 | 18,144 |
| Accumulated benefit obligation | 16,246 | 18,135 |
| Fair value of plan assets | 9,971 | 11,307 |
| ABO less fair value of plan assets | 6,275 | 6,828 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Accumulated benefit obligation | 837 | 1,010 |
| Fair value of plan assets | $ 225 | $ 295 |
| X | ||||||||||
- Definition Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Amount In Excess Of Plan Assets No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Components of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Pension Benefits [Member] | |||
| Defined benefit plans: | |||
| Service cost | $ 3 | $ 2 | $ 2 |
| Interest cost | 674 | 721 | 749 |
| Expected return on assets | (905) | (790) | (750) |
| Settlements | 0 | 1 | 0 |
| Amortization of: | |||
| Prior service cost (benefit) | 28 | 28 | 28 |
| Unrecognized net loss (gain) | 141 | 144 | 126 |
| Net periodic benefit cost (income) | (59) | 106 | 155 |
| Retiree Medical And Other Postretirement Benefits [Member] | |||
| Defined benefit plans: | |||
| Service cost | 5 | 4 | 3 |
| Interest cost | 35 | 39 | 47 |
| Expected return on assets | (24) | (21) | (20) |
| Settlements | 0 | 0 | 0 |
| Amortization of: | |||
| Prior service cost (benefit) | (236) | (237) | (240) |
| Unrecognized net loss (gain) | (21) | (23) | (17) |
| Net periodic benefit cost (income) | (241) | (238) | (227) |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |||
| Defined benefit plans: | |||
| Service cost | 2 | 2 | 2 |
| Interest cost | 670 | 717 | 746 |
| Expected return on assets | (901) | (786) | (747) |
| Settlements | 0 | 1 | 0 |
| Amortization of: | |||
| Prior service cost (benefit) | 28 | 28 | 28 |
| Unrecognized net loss (gain) | 140 | 144 | 125 |
| Net periodic benefit cost (income) | (61) | 106 | 154 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |||
| Defined benefit plans: | |||
| Service cost | 5 | 4 | 3 |
| Interest cost | 35 | 39 | 47 |
| Expected return on assets | (24) | (21) | (20) |
| Settlements | 0 | ||
| Amortization of: | |||
| Prior service cost (benefit) | (236) | (237) | (240) |
| Unrecognized net loss (gain) | (21) | (23) | (16) |
| Net periodic benefit cost (income) | $ (241) | $ (238) | $ (226) |
| X | ||||||||||
- Definition Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization Amounts [Abstract] No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Assumption Used to Determine Benefit Obligations (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Net periodic benefit cost: | |||
| Weighted average expected rate of return on plan assets | 8.00% | ||
| Pension Benefits [Member] | |||
| Benefit obligations: | |||
| Weighted average discount rate | 4.40% | 3.80% | |
| Net periodic benefit cost: | |||
| Weighted average discount rate | 3.80% | 4.30% | 4.70% |
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% |
| Retiree Medical And Other Postretirement Benefits [Member] | |||
| Benefit obligations: | |||
| Weighted average discount rate | 4.30% | 3.60% | |
| Net periodic benefit cost: | |||
| Weighted average discount rate | 3.60% | 4.10% | 4.42% |
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% |
| Weighted average health care cost trend rate assumed for next year | 3.91% | 4.19% | 4.25% |
| Weighted average health care cost trend rate assumed for 2025 and thereafter | 3.45% | ||
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |||
| Benefit obligations: | |||
| Weighted average discount rate | 4.40% | 3.80% | |
| Net periodic benefit cost: | |||
| Weighted average discount rate | 3.80% | 4.30% | 4.70% |
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |||
| Benefit obligations: | |||
| Weighted average discount rate | 4.30% | 3.60% | |
| Net periodic benefit cost: | |||
| Weighted average discount rate | 3.60% | 4.10% | 4.42% |
| Weighted average expected rate of return on plan assets | 8.00% | 8.00% | 8.00% |
| Weighted average health care cost trend rate assumed for next year | 3.91% | 4.19% | 4.25% |
| Weighted average health care cost trend rate assumed for 2025 and thereafter | 3.45% | ||
| X | ||||||||||
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Ultimate trend rate for health care cost for defined benefit postretirement plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of One Percentage Point Change in Assumed Health Care Cost Trend Rates (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Defined Benefit Plan Disclosure [Line Items] | |
| Increase (decrease) on service and interest cost, 1% Increase | $ 2 |
| Increase (decrease) on benefit obligation, 1% Increase | 47 |
| Increase (decrease) on service and interest cost, 1% Decrease | (2) |
| Increase (decrease) on benefits obligation, 1% Decrease | (43) |
| American Airlines, Inc. [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Increase (decrease) on service and interest cost, 1% Increase | 2 |
| Increase (decrease) on benefit obligation, 1% Increase | 47 |
| Increase (decrease) on service and interest cost, 1% Decrease | (2) |
| Increase (decrease) on benefits obligation, 1% Decrease | $ (43) |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of decrease in accumulated postretirement benefit obligation from one-percentage-point decrease in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of decrease in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point decrease in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase in accumulated postretirement benefit obligation from one-percentage-point increase in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point increase in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Expected Future Service Benefit Payments (Details) $ in Millions |
Dec. 31, 2018
USD ($)
|
|---|---|
| Pension Benefits [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2019 | $ 720 |
| 2020 | 758 |
| 2021 | 797 |
| 2022 | 836 |
| 2023 | 876 |
| 2024-2028 | 4,917 |
| Retiree Medical And Other Postretirement Benefits [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2019 | 84 |
| 2020 | 75 |
| 2021 | 71 |
| 2022 | 66 |
| 2023 | 64 |
| 2024-2028 | 280 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2019 | 717 |
| 2020 | 754 |
| 2021 | 793 |
| 2022 | 831 |
| 2023 | 872 |
| 2024-2028 | 4,891 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| 2019 | 84 |
| 2020 | 75 |
| 2021 | 71 |
| 2022 | 66 |
| 2023 | 64 |
| 2024-2028 | $ 280 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Schedule of Allocation of Plan Assets (Details) |
Dec. 31, 2018 |
|---|---|
| Equity [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 60.00% |
| Equity [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 85.00% |
| U.S. Large [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 20.00% |
| U.S. Large [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 50.00% |
| U.S. Small/Mid [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| U.S. Small/Mid [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| International [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 17.00% |
| International [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 27.00% |
| Emerging Markets [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
| Emerging Markets [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 11.00% |
| Alternative Investments [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
| Alternative Investments [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 20.00% |
| Fixed Income [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 15.00% |
| Fixed Income [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 40.00% |
| U.S. Long Duration [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 15.00% |
| U.S. Long Duration [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 30.00% |
| High Yield and Emerging Markets [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| High Yield and Emerging Markets [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| Private Income [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| Private Income [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| Cash Equivalents [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| Cash Equivalents [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
| American Airlines, Inc. [Member] | Equity [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 60.00% |
| American Airlines, Inc. [Member] | Equity [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 85.00% |
| American Airlines, Inc. [Member] | U.S. Large [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 20.00% |
| American Airlines, Inc. [Member] | U.S. Large [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 50.00% |
| American Airlines, Inc. [Member] | U.S. Small/Mid [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| American Airlines, Inc. [Member] | U.S. Small/Mid [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| American Airlines, Inc. [Member] | International [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 17.00% |
| American Airlines, Inc. [Member] | International [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 27.00% |
| American Airlines, Inc. [Member] | Emerging Markets [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
| American Airlines, Inc. [Member] | Emerging Markets [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 11.00% |
| American Airlines, Inc. [Member] | Alternative Investments [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
| American Airlines, Inc. [Member] | Alternative Investments [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 20.00% |
| American Airlines, Inc. [Member] | Fixed Income [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 15.00% |
| American Airlines, Inc. [Member] | Fixed Income [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 40.00% |
| American Airlines, Inc. [Member] | U.S. Long Duration [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 15.00% |
| American Airlines, Inc. [Member] | U.S. Long Duration [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 30.00% |
| American Airlines, Inc. [Member] | High Yield and Emerging Markets [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| American Airlines, Inc. [Member] | High Yield and Emerging Markets [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| American Airlines, Inc. [Member] | Private Income [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| American Airlines, Inc. [Member] | Private Income [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 10.00% |
| American Airlines, Inc. [Member] | Cash Equivalents [Member] | Minimum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 0.00% |
| American Airlines, Inc. [Member] | Cash Equivalents [Member] | Maximum [Member] | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Strategic target asset allocation | 5.00% |
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Employee Benefit Plans - Schedule of Fair Value of Pension Plan Assets by Asset Category (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|---|
| Pension Benefits [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 10,053 | $ 11,395 | $ 10,017 |
| Pension Benefits [Member] | Private market partnerships [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | 21 |
| Pension Benefits [Member] | Insurance Group Annuity Contracts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | 2 |
| Pension Benefits [Member] | Recurring [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 10,053 | 11,395 | |
| Pension Benefits [Member] | Recurring [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 6,027 | 7,281 | |
| Pension Benefits [Member] | Recurring [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,602 | 2,936 | |
| Pension Benefits [Member] | Recurring [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 9 | 16 | |
| Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 23 | 28 | |
| Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 23 | 28 | |
| Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | International markets [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 3,181 | 3,837 | |
| Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 3,181 | 3,837 | |
| Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,021 | 2,451 | |
| Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,021 | 2,451 | |
| Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 583 | 744 | |
| Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 583 | 744 | |
| Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 122 | 125 | |
| Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 122 | 125 | |
| Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Mutual Funds [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 52 | 55 | |
| Pension Benefits [Member] | Recurring [Member] | Mutual Funds [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 52 | 55 | |
| Pension Benefits [Member] | Recurring [Member] | Mutual Funds [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Mutual Funds [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,116 | 2,344 | |
| Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,116 | 2,344 | |
| Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 228 | 238 | |
| Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 228 | 238 | |
| Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 40 | 39 | |
| Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 40 | 39 | |
| Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | |
| Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | |
| Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 1,188 | 879 | |
| Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 218 | 315 | |
| Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 218 | 315 | |
| Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 227 | 283 | |
| Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | |
| Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | |
| Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 47 | 44 | |
| Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 47 | 44 | |
| Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 5 | 3 | |
| Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 5 | 3 | |
| Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | (7) | (6) | |
| Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | (7) | (6) | |
| Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Private market partnerships [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | 21 |
| American Airlines, Inc. [Member] | Insurance Group Annuity Contracts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | 2 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 10,001 | 11,340 | $ 9,968 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 10,001 | 11,340 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 5,975 | 7,226 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,602 | 2,936 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 9 | 16 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 23 | 28 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 23 | 28 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Cash and cash equivalents [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | International markets [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 3,181 | 3,837 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 3,181 | 3,837 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | International markets [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,021 | 2,451 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,021 | 2,451 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Large-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 583 | 744 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 583 | 744 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Mid-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 122 | 125 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 122 | 125 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Small-cap companies [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,116 | 2,344 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2,116 | 2,344 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Corporate debt [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 228 | 238 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 228 | 238 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Government Securities [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 40 | 39 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 40 | 39 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | U.S. municipal securities [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 7 | 14 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Private market partnerships [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 1,188 | 879 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 218 | 315 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 218 | 315 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Common/collective trusts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 227 | 283 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Insurance Group Annuity Contracts [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 2 | 2 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 47 | 44 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 47 | 44 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Dividend and interest receivable [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 5 | 3 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 5 | 3 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Due to/from brokers for sale of securities - net [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | (7) | (6) | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | (7) | (6) | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | Recurring [Member] | Other liabilities - net [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 0 | $ 0 |
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Employee Benefit Plans - Schedule of Fair Value of Pension Plan Assets by Asset Category - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| International markets, United Kingdom [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 17.00% | 17.00% |
| International markets, United Kingdom [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 17.00% | 17.00% |
| International markets, Japan [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 10.00% | 11.00% |
| International markets, Japan [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 10.00% | 11.00% |
| International markets, France [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 8.00% | 9.00% |
| International markets, France [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 8.00% | 9.00% |
| International markets, Switzerland [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 7.00% | 6.00% |
| International markets, Switzerland [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 7.00% | 6.00% |
| International markets, Ireland [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | |
| International markets, Ireland [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | |
| International markets, emerging markets [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 17.00% | 16.00% |
| International markets, emerging markets [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 17.00% | 16.00% |
| International markets, no concentration greater than 5% in any one country[Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 35.00% | 41.00% |
| International markets, no concentration greater than 5% in any one country[Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 35.00% | 41.00% |
| Mutual funds [Member] | U.S. Companies [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 37.00% | 39.00% |
| Mutual funds [Member] | US Treasuries and Corporate Bonds [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 38.00% | 34.00% |
| Mutual funds [Member] | International Companies [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 25.00% | 27.00% |
| Mutual funds [Member] | International Companies [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 30.00% | 30.00% |
| Corporate debt [Member] | U.S. Companies [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 85.00% | 85.00% |
| Corporate debt [Member] | U.S. Companies [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 85.00% | 85.00% |
| Corporate debt [Member] | International Companies [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 12.00% | 12.00% |
| Corporate debt [Member] | International Companies [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 12.00% | 12.00% |
| Corporate debt [Member] | Corporate Debt with A Standard and Poor's (S&P) Rating Lower than A [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 77.00% | 76.00% |
| Corporate debt [Member] | Corporate Debt with A Standard and Poor's (S&P) Rating Lower than A [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 77.00% | 76.00% |
| Corporate debt [Member] | Corporate Debt with Standard and Poor's (S&P) Rating A or Higher [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 23.00% | 24.00% |
| Corporate debt [Member] | Corporate Debt with Standard and Poor's (S&P) Rating A or Higher [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 23.00% | 24.00% |
| Corporate debt [Member] | Emerging Market Companies [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 3.00% | 3.00% |
| Corporate debt [Member] | Emerging Market Companies [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 3.00% | 3.00% |
| Government securities [Member] | Domestic Government Securities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 32.00% | 27.00% |
| Government securities [Member] | Domestic Government Securities [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 32.00% | 27.00% |
| Government securities [Member] | Emerging Market Government Securities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 37.00% | 43.00% |
| Government securities [Member] | Emerging Market Government Securities [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 37.00% | 43.00% |
| Government securities [Member] | Other International Government Securities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 31.00% | 30.00% |
| Government securities [Member] | Other International Government Securities [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 31.00% | 30.00% |
| Government securities [Member] | U.S. Buyout Opportunities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 94.00% | |
| Government securities [Member] | European Buyout Opportunities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | |
| Private market partnerships [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined benefit plan master trust future funding commitments | $ 1,000 | $ 903 |
| Private market partnerships [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined benefit plan master trust future funding commitments | $ 1,000 | $ 903 |
| Private market partnerships [Member] | Minimum [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Estimated period of liquidation of underlying assets | 1 year | 1 year |
| Private market partnerships [Member] | Minimum [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Estimated period of liquidation of underlying assets | 1 year | 1 year |
| Private market partnerships [Member] | Maximum [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Estimated period of liquidation of underlying assets | 10 years | 10 years |
| Private market partnerships [Member] | Maximum [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Estimated period of liquidation of underlying assets | 10 years | 10 years |
| Private market partnerships [Member] | U.S. Buyout Opportunities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 94.00% | |
| Private market partnerships [Member] | U.S. Buyout Opportunities [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 94.00% | 94.00% |
| Private market partnerships [Member] | European Buyout Opportunities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | |
| Private market partnerships [Member] | European Buyout Opportunities [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | 6.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Emerging Market 103-12 Investment Trust [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 45.00% | 40.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Emerging Market 103-12 Investment Trust [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 45.00% | 40.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Collective Interest Trust [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 37.00% | 42.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Collective Interest Trust [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 37.00% | 42.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Canadian Segregated Balanced Value [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 12.00% | 10.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Canadian Segregated Balanced Value [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 12.00% | 10.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Common/Collective Trust [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | 8.00% |
| Common/collective trusts and 103-12 Investment Trust measured at net asset value [Member] | Common/Collective Trust [Member] | American Airlines, Inc. [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Actual plan asset allocations | 6.00% | 8.00% |
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Employee Benefit Plans - Changes in Fair Value Measurements of Level 3 Investments (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Pension Benefits [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | $ 11,395 | $ 10,017 |
| Actual loss on plan assets: | ||
| Fair value of plan assets at end of period | 10,053 | 11,395 |
| Pension Benefits [Member] | Level 3 [Member] | Private market partnerships [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | 14 | 21 |
| Actual loss on plan assets: | ||
| Relating to assets still held at the reporting date | (2) | (4) |
| Purchases | 1 | 1 |
| Sales | (6) | (1) |
| Transfers out | (3) | |
| Fair value of plan assets at end of period | 7 | 14 |
| Pension Benefits [Member] | Level 3 [Member] | Insurance group annuity contracts [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | 2 | 2 |
| Actual loss on plan assets: | ||
| Relating to assets still held at the reporting date | 0 | 0 |
| Purchases | 0 | 0 |
| Sales | 0 | 0 |
| Transfers out | 0 | |
| Fair value of plan assets at end of period | 2 | 2 |
| American Airlines, Inc. [Member] | Level 3 [Member] | Private market partnerships [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | 14 | 21 |
| Actual loss on plan assets: | ||
| Relating to assets still held at the reporting date | (2) | (4) |
| Purchases | 1 | 1 |
| Sales | (6) | (1) |
| Transfers out | (3) | |
| Fair value of plan assets at end of period | 7 | 14 |
| American Airlines, Inc. [Member] | Level 3 [Member] | Insurance group annuity contracts [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | 2 | 2 |
| Actual loss on plan assets: | ||
| Relating to assets still held at the reporting date | 0 | 0 |
| Purchases | 0 | 0 |
| Sales | 0 | 0 |
| Transfers out | 0 | |
| Fair value of plan assets at end of period | 2 | 2 |
| American Airlines, Inc. [Member] | Pension Benefits [Member] | ||
| Change in fair value measurements of level 3 investments | ||
| Fair value of plan assets at beginning of period | 11,340 | 9,968 |
| Actual loss on plan assets: | ||
| Fair value of plan assets at end of period | $ 10,001 | $ 11,340 |
| X | ||||||||||
- Definition Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets [Abstract] No definition available.
|
| X | ||||||||||
- Definition Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Purchases No definition available.
|
| X | ||||||||||
- Definition Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Sales No definition available.
|
| X | ||||||||||
- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan, for assets transferred into (out of) Level 3 of fair value hierarchy. Includes, but is not limited to, transfer due to change in observability of significant inputs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Employee Benefit Plans - Fair Values of Retiree Medical and Other Postretirement Benefit Plans Assets by Asset Category (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|---|
| Mutual funds [Member] | non-U.S. [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Actual plan asset allocations | 25.00% | 27.00% | |
| Retiree Medical And Other Postretirement Benefits [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 225 | $ 295 | $ 266 |
| Retiree Medical And Other Postretirement Benefits [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 0 | $ 0 | |
| Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds [Member] | non-U.S. [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Actual plan asset allocations | 30.00% | 30.00% | |
| American Airlines, Inc. [Member] | Mutual funds [Member] | non-U.S. [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Actual plan asset allocations | 30.00% | 30.00% | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 225 | $ 295 | $ 266 |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 4 | 5 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Money market funds [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 1 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 0 | 0 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 2 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 221 | 290 | |
| American Airlines, Inc. [Member] | Retiree Medical And Other Postretirement Benefits [Member] | Mutual funds - AAL Class [Member] | Level 3 [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 0 | $ 0 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Percentage of investment to total investment within defined benefit plan asset category. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Employee Benefit Plans - Defined Contribution Plans (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Defined Contribution Plan Disclosure [Line Items] | |||
| Contributions to defined contribution benefit plans | $ 877 | $ 851 | $ 766 |
| American Airlines, Inc. [Member] | |||
| Defined Contribution Plan Disclosure [Line Items] | |||
| Contributions to defined contribution benefit plans | $ 856 | $ 844 | $ 761 |
| X | ||||||||||
- Definition Amount of cost for defined contribution plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
Employee Benefit Plans Employee Benefit Plans - Profit Sharing Program (Details) - Deferred Profit Sharing [Member] $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] | |
| Pre-tax income excluding special items for employee profit sharing, percentage | 5.00% |
| Employee profit sharing program, amount | $ 175 |
| American Airlines, Inc. [Member] | |
| Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] | |
| Pre-tax income excluding special items for employee profit sharing, percentage | 5.00% |
| Employee profit sharing program, amount | $ 175 |
| X | ||||||||||
- Definition Profit Share Percentage No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (AOCI) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| AOCI tax, attributable to parent [Roll Forward] | |||
| Beginning balance, tax | $ (630) | $ (677) | |
| Other comprehensive income (loss) before reclassifications, tax | 15 | 15 | |
| Amounts reclassified from AOCI, tax | 19 | 32 | |
| Net current-period other comprehensive income (loss), tax | 34 | 47 | |
| Ending balance, tax | (596) | (630) | $ (677) |
| AOCI attributable to parent, net of tax [Roll Forward] | |||
| Beginning balance, net of tax | (5,154) | (5,083) | |
| Other comprehensive income (loss) before reclassifications, net of tax | (51) | (16) | |
| Amounts reclassified from AOCI, net of tax | (69) | (55) | |
| Total other comprehensive loss, net of tax | (120) | (71) | (351) |
| Ending balance, net of tax | (5,274) | (5,154) | (5,083) |
| Pension, Retiree Medical and Other Postretirement Benefits [Member] | |||
| AOCI attributable to parent, before tax [Roll Forward] | |||
| Beginning balance, before tax | (4,523) | (4,406) | |
| Other comprehensive income (loss) before reclassifications, before tax | (62) | (30) | |
| Amounts reclassified from AOCI, before tax | (88) | (87) | |
| Net current-period other comprehensive income (loss), before tax | (150) | (117) | |
| Ending balance, before tax | (4,673) | (4,523) | (4,406) |
| Unrealized Gain/(Loss) on Investments [Member] | |||
| AOCI attributable to parent, before tax [Roll Forward] | |||
| Beginning balance, before tax | (1) | 0 | |
| Other comprehensive income (loss) before reclassifications, before tax | (4) | (1) | |
| Amounts reclassified from AOCI, before tax | 0 | 0 | |
| Net current-period other comprehensive income (loss), before tax | (4) | (1) | |
| Ending balance, before tax | (5) | (1) | 0 |
| American Airlines, Inc. [Member] | |||
| AOCI tax, attributable to parent [Roll Forward] | |||
| Beginning balance, tax | (742) | (788) | |
| Other comprehensive income (loss) before reclassifications, tax | 15 | 14 | |
| Amounts reclassified from AOCI, tax | 20 | 32 | |
| Net current-period other comprehensive income (loss), tax | 35 | 46 | |
| Ending balance, tax | (707) | (742) | (788) |
| AOCI attributable to parent, net of tax [Roll Forward] | |||
| Beginning balance, net of tax | (5,251) | (5,182) | |
| Other comprehensive income (loss) before reclassifications, net of tax | (50) | (14) | |
| Amounts reclassified from AOCI, net of tax | (69) | (55) | |
| Total other comprehensive loss, net of tax | (119) | (69) | (351) |
| Ending balance, net of tax | (5,370) | (5,251) | (5,182) |
| American Airlines, Inc. [Member] | Pension, Retiree Medical and Other Postretirement Benefits [Member] | |||
| AOCI attributable to parent, before tax [Roll Forward] | |||
| Beginning balance, before tax | (4,508) | (4,394) | |
| Other comprehensive income (loss) before reclassifications, before tax | (61) | (27) | |
| Amounts reclassified from AOCI, before tax | (89) | (87) | |
| Net current-period other comprehensive income (loss), before tax | (150) | (114) | |
| Ending balance, before tax | (4,658) | (4,508) | (4,394) |
| American Airlines, Inc. [Member] | Unrealized Gain/(Loss) on Investments [Member] | |||
| AOCI attributable to parent, before tax [Roll Forward] | |||
| Beginning balance, before tax | (1) | 0 | |
| Other comprehensive income (loss) before reclassifications, before tax | (4) | (1) | |
| Amounts reclassified from AOCI, before tax | 0 | 0 | |
| Net current-period other comprehensive income (loss), before tax | (4) | (1) | |
| Ending balance, before tax | $ (5) | $ (1) | $ 0 |
| X | ||||||||||
- Definition AOCI Before Tax, Attributable To Parent [Roll Forward] No definition available.
|
| X | ||||||||||
- Definition AOCI Tax, Attributable to Parent [Roll Forward] No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, attributable to parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). No definition available.
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) attributable to parent. No definition available.
|
| X | ||||||||||
- Definition Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Accumulated Other Comprehensive Loss - Reclassifications out of AOCI (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | $ (69) | $ (55) |
| Prior Service Benefit [Member] | ||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | (161) | (132) |
| Actuarial Loss [Member] | ||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | 92 | 77 |
| American Airlines, Inc. [Member] | ||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | (69) | (55) |
| American Airlines, Inc. [Member] | Prior Service Benefit [Member] | ||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | (161) | (132) |
| American Airlines, Inc. [Member] | Actuarial Loss [Member] | ||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Total reclassifications for the period, net of tax | $ 92 | $ 77 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
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Commitments, Contingencies and Guarantees - Aircraft, Engine and Other Purchase Commitments (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Purchase Obligations | ||
| Equipment purchase deposits | $ 1,278 | $ 1,217 |
| Jet Fuel, Facility Construction Projects and Information Technology Support [Member] | ||
| Unrecorded Unconditional Purchase Obligations | ||
| 2019 | 1,900 | |
| 2020 | 1,100 | |
| 2021 | 1,000 | |
| 2022 | 32 | |
| 2023 | 7 | |
| American Airlines, Inc. [Member] | ||
| Purchase Obligations | ||
| Equipment purchase deposits | 1,277 | $ 1,217 |
| American Airlines, Inc. [Member] | Jet Fuel, Facility Construction Projects and Information Technology Support [Member] | ||
| Unrecorded Unconditional Purchase Obligations | ||
| 2019 | 1,900 | |
| 2020 | 1,100 | |
| 2021 | 1,000 | |
| 2022 | 32 | |
| 2023 | 7 | |
| American Airlines, Inc. [Member] | Aircraft and Engine Purchase Commitments [Member] | ||
| Purchase Obligations | ||
| 2019 | 2,906 | |
| 2020 | 1,683 | |
| 2021 | 994 | |
| 2022 | 1,378 | |
| 2023 | 1,450 | |
| 2024 and Thereafter | 6,047 | |
| Total | $ 14,458 |
| X | ||||||||||
- Definition Carrying amount, at the balance sheet date, of deposits made to the manufacturer for new flight equipment still under construction. May include capitalized interest. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the fourth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the third fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Commitments, Contingencies and Guarantees - Capacity Purchase Agreements (Details) - Airline Capacity Purchase Arrangements [Member] $ in Millions |
Dec. 31, 2018
USD ($)
|
|---|---|
| Unrecorded Unconditional Purchase Obligation [Line Items] | |
| Capacity purchase agreement, percentage of reimbursement for certain variable costs | 100.00% |
| 2019 | $ 1,101 |
| 2020 | 930 |
| 2021 | 765 |
| 2022 | 618 |
| 2023 | 487 |
| 2024 and Thereafter | 1,043 |
| Total | $ 4,944 |
| American Airlines, Inc. [Member] | |
| Unrecorded Unconditional Purchase Obligation [Line Items] | |
| Capacity purchase agreement, percentage of reimbursement for certain variable costs | 100.00% |
| 2019 | $ 1,101 |
| 2020 | 930 |
| 2021 | 765 |
| 2022 | 618 |
| 2023 | 487 |
| 2024 and Thereafter | 1,043 |
| Total | $ 4,944 |
| X | ||||||||||
- Definition Reimbursement receivable percentage under agreement. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the fourth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the third fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Commitments, Contingencies and Guarantees - Additional Information (Details) shares in Millions |
1 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
|
Feb. 12, 2019
shares
|
Jun. 15, 2018
USD ($)
|
Jun. 30, 2015
lawsuit
|
Dec. 31, 2018
USD ($)
Employees
Aircraft
security_screening_lane
|
Dec. 31, 2017
USD ($)
|
|
| Long-term Purchase Commitment [Line Items] | |||||
| Airport development, amount | $ 1,600,000,000 | ||||
| Airport redevelopment, number of security screening lanes | security_screening_lane | 16 | ||||
| Airport redevelopment, costs incurred and capitalized | $ 7,000,000 | ||||
| Number of aircraft owned through financing under EETC | Aircraft | 389 | ||||
| Number of aircraft operating leased under trusts | Aircraft | 88 | ||||
| Long-term debt | $ 24,001,000,000 | $ 24,530,000,000 | |||
| Operating lease liabilities | 9,556,000,000 | ||||
| Letters of credit outstanding and surety bonds, amount | $ 460,000,000 | ||||
| Number of putative class action lawsuits | lawsuit | 100 | ||||
| Settlement amount | $ 45,000,000 | ||||
| Number of full-time equivalent employees | Employees | 128,900 | ||||
| Percentage of employees covered by collective bargaining agreements with various labor unions | 84.00% | ||||
| Percentage of employees covered by collective bargaining agreements that will become amendable within one year | 22.00% | ||||
| Regional Carrier [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Number of full-time equivalent employees | Employees | 26,000 | ||||
| Subsequent Event [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Shares distributed from Disputed Claims Reserve | shares | 17.3 | ||||
| Shares reserved for issuance in Disputed Claims Reserve | shares | 7.2 | ||||
| EETC Leveraged Lease Financings [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Operating lease liabilities | $ 352,000,000 | ||||
| Special Facility Revenue Bonds [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Operating lease liabilities | 321,000,000 | ||||
| Guarantor obligations, maximum exposure, undiscounted | 588,000,000 | ||||
| Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 22,751,000,000 | 22,780,000,000 | |||
| Unsecured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 1,250,000,000 | 1,750,000,000 | |||
| Enhanced Equipment Trust Certificates (EETC) [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 11,648,000,000 | 11,881,000,000 | |||
| Special Facility Revenue Bonds [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 798,000,000 | 857,000,000 | |||
| Guarantor obligations, maximum exposure, undiscounted | 769,000,000 | ||||
| Credit Facilities And Certain EETC Financings [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Guarantor obligations, maximum exposure, undiscounted | 8,400,000,000 | ||||
| Senior Notes 5.50% Due in 2019 [Member] | Unsecured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | $ 750,000,000 | 750,000,000 | |||
| Fixed interest rate | 5.50% | ||||
| Senior Notes 4.625% Due in 2020 [Member] | Unsecured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | $ 500,000,000 | 500,000,000 | |||
| Fixed interest rate | 4.625% | ||||
| American Airlines, Inc. [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Airport development, amount | $ 1,600,000,000 | ||||
| Airport redevelopment, number of security screening lanes | security_screening_lane | 16 | ||||
| Airport redevelopment, costs incurred and capitalized | $ 7,000,000 | ||||
| Number of aircraft owned through financing under EETC | Aircraft | 389 | ||||
| Number of aircraft operating leased under trusts | Aircraft | 88 | ||||
| Long-term debt | $ 22,722,000,000 | ||||
| Operating lease liabilities | $ 9,496,000,000 | ||||
| Number of putative class action lawsuits | lawsuit | 100 | ||||
| Settlement amount | $ 45,000,000 | ||||
| Number of full-time equivalent employees | Employees | 102,900 | ||||
| Percentage of employees covered by collective bargaining agreements with various labor unions | 84.00% | ||||
| Percentage of employees covered by collective bargaining agreements that will become amendable within one year | 24.00% | ||||
| American Airlines, Inc. [Member] | EETC Leveraged Lease Financings [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Operating lease liabilities | $ 352,000,000 | ||||
| American Airlines, Inc. [Member] | Special Facility Revenue Bonds [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Operating lease liabilities | 321,000,000 | ||||
| American Airlines, Inc. [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 22,722,000,000 | 22,750,000,000 | |||
| American Airlines, Inc. [Member] | Enhanced Equipment Trust Certificates (EETC) [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 11,648,000,000 | 11,881,000,000 | |||
| American Airlines, Inc. [Member] | Special Facility Revenue Bonds [Member] | Secured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Long-term debt | 769,000,000 | $ 828,000,000 | |||
| American Airlines, Inc. [Member] | Senior Notes 5.50% Due in 2019 [Member] | Unsecured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Guarantor obligations, maximum exposure, undiscounted | 750,000,000 | ||||
| American Airlines, Inc. [Member] | Senior Notes 4.625% Due in 2020 [Member] | Unsecured Debt [Member] | |||||
| Long-term Purchase Commitment [Line Items] | |||||
| Guarantor obligations, maximum exposure, undiscounted | $ 500,000,000 |
| X | ||||||||||
- Definition Airport Redevelopment, Amount No definition available.
|
| X | ||||||||||
- Definition Airport Redevelopment, Number Of Security Screen Lanes No definition available.
|
| X | ||||||||||
- Definition Airport Redevelopment, Payments To Acquire Productive Assets No definition available.
|
| X | ||||||||||
- Definition Collective-Bargaining Arrangement, Percentage Of Employer's Participants Under Agreements Amendable Within One Year No definition available.
|
| X | ||||||||||
- Definition Collective-Bargaining Arrangement, Percentage of Employer's Participants No definition available.
|
| X | ||||||||||
- Definition Common Stock, Capital Shares Distributed From Disputed Claims Reserve No definition available.
|
| X | ||||||||||
- Definition Common Stock, Capital Shares Reserved For Issuance In Disputed Claims Reserve No definition available.
|
| X | ||||||||||
- Definition Letters of Credit Outstanding and Surety Bonds, Amount No definition available.
|
| X | ||||||||||
- Definition Number of Aircraft Owned, Enhanced Equipment Trust Certificate No definition available.
|
| X | ||||||||||
- Definition Number Of Operating Aircraft Leased From Trusts In Which Company Holds Significant Variable Interest No definition available.
|
| X | ||||||||||
- Definition Number of putative class action lawsuits. No definition available.
|
| X | ||||||||||
- Definition Number of persons employed by the Entity No definition available.
|
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount awarded to other party in judgment or settlement of litigation. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Supplemental Cash Flow Information - Cash Flow Information and Non-Cash Investing and Financing Activities (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Non-cash investing and financing activities: | |||
| Equity investment | $ 0 | $ 120 | $ 0 |
| Settlement of bankruptcy obligations | 0 | 15 | 3 |
| Supplemental information: | |||
| Interest paid, net | 1,091 | 1,040 | 964 |
| Income taxes paid | 18 | 20 | 16 |
| American Airlines, Inc. [Member] | |||
| Non-cash investing and financing activities: | |||
| Equity investment | 0 | 120 | 0 |
| Settlement of bankruptcy obligations | 0 | 15 | 3 |
| Supplemental information: | |||
| Interest paid, net | 1,009 | 942 | 867 |
| Income taxes paid | $ 16 | $ 18 | $ 14 |
| X | ||||||||||
- Definition Other Significant Noncash Transaction, Bankruptcy Settlement Obligation No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Value of investments transferred from the entity's investments in noncash transactions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Operating Segments and Related Disclosures - Additional Information (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
Segments
| |
| Segment Reporting Information [Line Items] | |
| Number of operating segments | 1 |
| American Airlines, Inc. [Member] | |
| Segment Reporting Information [Line Items] | |
| Number of operating segments | 1 |
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
Share Based Compensation - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2013 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Share-based compensation costs | $ 88 | $ 90 | $ 102 | |
| Common stock withheld or sold related to tax obligations (in shares) | 800,000 | 1,100,000 | 1,400,000 | |
| Payment of certain tax withholding obligations associated with employee equity awards | $ 37 | $ 51 | $ 56 | |
| AAG Incentive Award Plan 2013 [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Shares authorized for grant (in shares) | 40,000,000 | |||
| American Airlines, Inc. [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Share-based compensation costs | $ 88 | $ 90 | $ 102 | |
| Common stock withheld or sold related to tax obligations (in shares) | 800,000 | 1,100,000 | 1,400,000 | |
| Payment of certain tax withholding obligations associated with employee equity awards | $ 37 | $ 51 | $ 56 | |
| American Airlines, Inc. [Member] | AAG Incentive Award Plan 2013 [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Shares authorized for grant (in shares) | 40,000,000 | |||
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Share Based Compensation - Restricted Stock Unit Awards (Details) - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vesting period | 3 years | ||
| Number of Shares [Roll Forward] | |||
| Number of Shares, Beginning Balance (in shares) | 4,324 | 5,187 | 5,607 |
| Number of Shares, Granted (in shares) | 2,194 | 2,309 | 2,655 |
| Number of Shares, Vested and released (in shares) | (1,999) | (2,708) | (2,754) |
| Number of Shares, Forfeited (in shares) | (199) | (464) | (321) |
| Number of Shares, Ending balance (in shares) | 4,320 | 4,324 | 5,187 |
| Weighted Average Grant Date Fair Value [Abstract] | |||
| Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share) | $ 46.94 | $ 41.48 | $ 38.08 |
| Weighted Average Grant Date Fair Value, Granted (in dollars per share) | 47.65 | 48.58 | 41.34 |
| Weighted Average Grant Date Fair Value, Vested and released (in dollars per share) | 44.99 | 39.63 | 34.83 |
| Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | 45.72 | 44.48 | 40.15 |
| Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ 44.29 | $ 46.94 | $ 41.48 |
| Unrecognized compensation cost | $ 111 | ||
| Recognition period | 1 year | ||
| Total fair value of stock-settled during the year | $ 91 | $ 123 | $ 107 |
| American Airlines, Inc. [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vesting period | 3 years | ||
| Number of Shares [Roll Forward] | |||
| Number of Shares, Beginning Balance (in shares) | 4,324 | 5,187 | 5,607 |
| Number of Shares, Granted (in shares) | 2,194 | 2,309 | 2,655 |
| Number of Shares, Vested and released (in shares) | (1,999) | (2,708) | (2,754) |
| Number of Shares, Forfeited (in shares) | (199) | (464) | (321) |
| Number of Shares, Ending balance (in shares) | 4,320 | 4,324 | 5,187 |
| Weighted Average Grant Date Fair Value [Abstract] | |||
| Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share) | $ 46.94 | $ 41.48 | $ 38.08 |
| Weighted Average Grant Date Fair Value, Granted (in dollars per share) | 47.65 | 48.58 | 41.34 |
| Weighted Average Grant Date Fair Value, Vested and released (in dollars per share) | 44.99 | 39.63 | 34.83 |
| Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | 45.72 | 44.48 | 40.15 |
| Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ 44.29 | $ 46.94 | $ 41.48 |
| Unrecognized compensation cost | $ 111 | ||
| Recognition period | 1 year | ||
| Total fair value of stock-settled during the year | $ 91 | $ 123 | $ 107 |
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
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Valuation and Qualifying Accounts - Components of Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Allowance for obsolescence of spare parts [Member] | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | $ 769 | $ 765 | $ 728 |
| Additions Charged to Statement of Operations Accounts | 70 | 29 | 37 |
| Deductions | (25) | (25) | 0 |
| Balance at End of Year | 814 | 769 | 765 |
| Allowance for uncollectible accounts [Member] | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 24 | 36 | 41 |
| Additions Charged to Statement of Operations Accounts | 42 | 43 | 47 |
| Deductions | (37) | (55) | (52) |
| Balance at End of Year | 29 | 24 | 36 |
| American Airlines, Inc. [Member] | Allowance for obsolescence of spare parts [Member] | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 717 | 720 | 689 |
| Additions Charged to Statement of Operations Accounts | 57 | 18 | 28 |
| Deductions | (20) | (21) | 3 |
| Balance at End of Year | 754 | 717 | 720 |
| American Airlines, Inc. [Member] | Allowance for uncollectible accounts [Member] | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at Beginning of Year | 21 | 35 | 37 |
| Additions Charged to Statement of Operations Accounts | 39 | 41 | 47 |
| Deductions | (36) | (55) | (49) |
| Balance at End of Year | $ 24 | $ 21 | $ 35 |
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of decrease in valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Quarterly Financial Data - Summarized Financial Data (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Selected Quarterly Financial Information [Line Items] | |||||||||||
| Operating revenues | $ 10,938 | $ 11,559 | $ 11,643 | $ 10,401 | $ 10,611 | $ 10,965 | $ 11,227 | $ 9,820 | $ 44,541 | $ 42,622 | $ 40,142 |
| Operating expenses | 10,367 | 10,874 | 10,639 | 10,005 | 9,973 | 9,709 | 9,628 | 9,083 | 41,885 | 38,391 | 35,082 |
| Operating income | 571 | 685 | 1,004 | 396 | 638 | 1,256 | 1,599 | 737 | 2,656 | 4,231 | 5,060 |
| Net income | $ 325 | $ 372 | $ 556 | $ 159 | $ (583) | $ 661 | $ 864 | $ 340 | $ 1,412 | $ 1,282 | $ 2,584 |
| Earnings per share: | |||||||||||
| Basic (in dollars per share) | $ 0.71 | $ 0.81 | $ 1.20 | $ 0.34 | $ (1.22) | $ 1.36 | $ 1.76 | $ 0.67 | $ 3.04 | $ 2.62 | $ 4.68 |
| Diluted (in dollars per share) | $ 0.70 | $ 0.81 | $ 1.20 | $ 0.34 | $ (1.22) | $ 1.36 | $ 1.75 | $ 0.67 | $ 3.03 | $ 2.61 | $ 4.65 |
| Shares used for computation: | |||||||||||
| Basic (in shares) | 460,589 | 460,526 | 463,533 | 472,297 | 477,165 | 484,772 | 490,818 | 503,902 | 464,236 | 489,164 | 552,308 |
| Diluted (in shares) | 461,915 | 461,507 | 464,618 | 474,598 | 477,165 | 486,625 | 492,965 | 507,797 | 465,660 | 491,692 | 556,099 |
| American Airlines, Inc. [Member] | |||||||||||
| Selected Quarterly Financial Information [Line Items] | |||||||||||
| Operating revenues | $ 10,936 | $ 11,556 | $ 11,640 | $ 10,398 | $ 10,607 | $ 10,962 | $ 11,224 | $ 9,817 | $ 44,530 | $ 42,610 | $ 40,125 |
| Operating expenses | 10,344 | 10,850 | 10,626 | 9,986 | 9,982 | 9,713 | 9,633 | 9,077 | 41,807 | 38,405 | 35,045 |
| Operating income | 592 | 706 | 1,014 | 412 | 625 | 1,249 | 1,591 | 740 | 2,723 | 4,205 | 5,080 |
| Net income | $ 407 | $ 433 | $ 609 | $ 209 | $ (658) | $ 686 | $ 888 | $ 369 | $ 1,658 | $ 1,285 | $ 2,689 |
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- Definition Selected Quarterly Financial Information [Line Items] No definition available.
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Quarterly Financial Data - Additional Information (Details) $ in Millions |
3 Months Ended | 12 Months Ended | |||
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Dec. 31, 2018
USD ($)
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Dec. 31, 2017
USD ($)
$ / Employees
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Dec. 31, 2018
USD ($)
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Dec. 31, 2017
USD ($)
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Dec. 31, 2016
USD ($)
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| Restructuring Cost and Reserve [Line Items] | |||||
| Operating and nonoperating special items, net | $ 225 | $ 1,100 | |||
| Fleet restructuring expenses | 146 | 58 | $ 422 | $ 232 | $ 177 |
| Merger integration expenses | 81 | 81 | 268 | 273 | 514 |
| Severance costs | 37 | 58 | 0 | 0 | |
| Mark-to-market net unrealized losses on equity investments | 22 | 104 | 0 | 0 | |
| Net credit (charge) resulting from mark-to-market adjustments for bankruptcy obligations | 37 | (20) | 76 | (27) | (25) |
| Income tax credit, reversal of valuation allowance | 6 | 3 | (7) | ||
| Employee tax reform bonus expense | $ 149 | ||||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| Impact of Tax Act, charge to reduce deferred tax assets | $ 823 | 0 | 823 | 0 | |
| Alternative Minimum Tax Credit Carryforward [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Income tax credit, reversal of valuation allowance | 22 | ||||
| American Airlines, Inc. [Member] | |||||
| Restructuring Cost and Reserve [Line Items] | |||||
| Operating and nonoperating special items, net | 220 | 1,200 | |||
| Fleet restructuring expenses | 146 | 58 | 422 | 232 | 177 |
| Merger integration expenses | 81 | 81 | 268 | 273 | 514 |
| Severance costs | 37 | 58 | 0 | 0 | |
| Mark-to-market net unrealized losses on equity investments | 22 | 104 | 0 | 0 | |
| Net credit (charge) resulting from mark-to-market adjustments for bankruptcy obligations | 37 | (20) | 76 | (27) | (25) |
| Income tax credit, reversal of valuation allowance | $ 22 | 6 | (4) | 1 | |
| Employee tax reform bonus expense | $ 123 | ||||
| Tax reform bonus, amount per employee | $ / Employees | 1,000 | ||||
| Impact of Tax Act, charge to reduce deferred tax assets | $ 924 | $ 0 | $ 924 | $ 0 | |
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- Definition Employee Tax Reform Bonus, Amount No definition available.
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- Definition Employee Tax Reform Bonus Expense No definition available.
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- Definition Mark-to Market Adjustments for Bankruptcy Obligations and Other No definition available.
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- Definition Operating And Nonoperating Special Charges, Net No definition available.
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- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense No definition available.
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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. No definition available.
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- Definition Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Transactions with Related Parties (Details) - American Airlines, Inc. [Member] - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Related Party Transaction [Line Items] | ||
| Net receivables (payables) to related parties | $ 10,666 | $ 8,822 |
| AAG [Member] | ||
| Related Party Transaction [Line Items] | ||
| Net receivables (payables) to related parties | 12,808 | 10,968 |
| AAG's Wholly-owned Subsidiaries [Member] | ||
| Related Party Transaction [Line Items] | ||
| Net receivables (payables) to related parties | $ (2,142) | $ (2,146) |
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- Definition Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Transactions with Related Parties - Additional Information (Details) - USD ($) $ in Billions |
12 Months Ended | ||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| American Airlines, Inc. [Member] | Regional Carrier [Member] | AAG's Wholly-owned Subsidiaries [Member] | Airline Capacity Purchase Arrangements [Member] | |||
| Related Party Transaction [Line Items] | |||
| Related party transaction, expense recognized | $ 1.8 | $ 1.7 | $ 1.5 |
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Subsequent Event - Additional Information (Details) - $ / shares |
1 Months Ended | 3 Months Ended | 12 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Subsequent Event [Line Items] | ||||||||||||||||
| Dividends declared on common stock (in dollars per share) | $ 0.10 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.4 | $ 0.4 | $ 0.4 | |
| Subsequent Event [Member] | ||||||||||||||||
| Subsequent Event [Line Items] | ||||||||||||||||
| Dividends declared on common stock (in dollars per share) | $ 0.10 | |||||||||||||||
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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| Label | Element | Value |
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| Accounting Standards Update 2016-09 [Member] | ||
| Cumulative Effect of New Accounting Principle in Period of Adoption | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption | $ 418,000,000 |
| Accounting Standards Update 2016-09 [Member] | Retained Earnings [Member] | ||
| Cumulative Effect of New Accounting Principle in Period of Adoption | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption | 418,000,000 |
| Accounting Standards Update 2016-09 [Member] | Subsidiaries [Member] | ||
| Cumulative Effect of New Accounting Principle in Period of Adoption | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption | 418,000,000 |
| Accounting Standards Update 2016-09 [Member] | Subsidiaries [Member] | Retained Earnings [Member] | ||
| Cumulative Effect of New Accounting Principle in Period of Adoption | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption | $ 418,000,000 |
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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. No definition available.
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