Related Party Transactions [Abstract] Statement [Table] Statement [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] American Airlines, Inc. [Member] Subsidiaries [Member] Statement [Line Items] Statement [Line Items] Summary of Net Receivables (Payables) to Related Parties Schedule of Related Party Transactions [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets Assets, Current [Abstract] Cash Cash Short-term investments Short-term Investments Restricted cash and short-term investments Restricted Cash and Investments, Current Accounts receivable, net Receivables, Net, Current Receivables from related parties, net Related Party Transaction, Due from (to) Related Party, Current Aircraft fuel, spare parts and supplies, net Airline Related Inventory, Net Prepaid expenses and other Prepaid Expense and Other Assets, Current Total current assets Assets, Current Operating property and equipment Property, Plant and Equipment, Net [Abstract] Flight equipment Flight Equipment, Gross Ground property and equipment Ground Property and Equipment, Gross The gross amount of long-lived, depreciable ground property and equipment. Equipment purchase deposits Deposits on Flight Equipment Total property and equipment, at cost Property, Plant and Equipment, Gross Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment, net Property, Plant and Equipment, Net Other assets Other Assets, Noncurrent [Abstract] Goodwill Goodwill Intangibles, net of accumulated amortization of $612 and $578, respectively Intangible Assets, Net (Excluding Goodwill) Deferred tax asset Deferred Tax Assets, Net, Noncurrent Other assets Other Assets, Miscellaneous, Noncurrent Total other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities Liabilities, Current [Abstract] Current maturities of long-term debt and capital leases Long-term Debt and Capital Lease Obligations, Current Accounts payable Accounts Payable, Current Accrued salaries and wages Employee-related Liabilities, Current Air traffic liability Air Traffic Liability, Current Loyalty program liability Frequent Flier Liability, Current Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Noncurrent liabilities Liabilities, Noncurrent [Abstract] Long-term debt and capital leases, net of current maturities Long-term Debt and Capital Lease Obligations Pension and postretirement benefits Liability, Defined Benefit Plan, Noncurrent Other liabilities Other Liabilities, Noncurrent Total noncurrent liabilities Liabilities, Noncurrent Commitments and contingencies Commitments and Contingencies Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Common stock Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Secured Debt [Member] Secured Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2013 Credit Facilities [Member] Credit Facility 2013 [Member] Credit Facility 2013 [Member] 2014 Credit Facilities [Member] Credit Facility 2014 [Member] Credit Facility 2014 [Member] April 2016 Credit Facilities [Member] Credit Facility April 2016 [Member] Credit Facility April 2016 [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Retirement Benefits [Abstract] Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Equity [Abstract] Cash dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Total Payments of Dividends Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Prior Service Cost (Benefit) [Member] Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Actuarial Loss [Member] Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Salaries, Wages and Benefits [Member] Salaries, Wages and Benefits [Member] Salaries, Wages and Benefits [Member] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassifications out of AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Income Tax Disclosure [Abstract] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal [Member] Domestic Tax Authority [Member] State [Member] State and Local Jurisdiction [Member] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Alternative Minimum Tax Credit Carryforward [Member] Alternative Minimum Tax Credit Carryforward [Member] Alternative Minimum Tax Credit Carryforward [Member] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Gross NOL Carryforwards Operating Loss Carryforwards Alternative minimum tax credit carryforwards Tax Credit Carryforward, Amount Income tax provision (benefit) Income Tax Expense (Benefit) Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Unsecured Debt [Member] Unsecured Debt [Member] December 2016 Credit Facilities [Member] Credit Facility December 2016 [Member] Credit Facility December 2016 [Member] Enhanced Equipment Trust Certificates (EETC) [Member] Enhanced Equipment Trust Certificate [Member] Equipment Loans and Other Notes Payable [Member] Equipment Loans and Other Notes Payable [Member] Equipment Loans and Other Notes Payable [Member] Special Facility Revenue Bonds [Member] Special Facility Revenue Bonds [Member] Special Facility Revenue Bonds [Member] Other Secured Obligations [Member] Other Secured Obligations [Member] Other Secured Obligations [Member] 5.50% Senior Notes [Member] Senior Notes 5.50% Due in 2019 [Member] Senior Notes, 5.50%, Due in 2019 [Member] 6.125% Senior Notes [Member] Senior Notes 6.125% Due in 2018 [Member] Senior Notes, 6.125%, Due in 2018 [Member] 4.625% Senior Notes [Member] Senior Notes 4.625% Due in 2020 [Member] Senior Notes 4.625% Due in 2020 [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total long-term debt and capital lease obligations Debt And Capital Lease Obligations Gross Debt And Capital Lease Obligations Gross Less: Total unamortized debt discount, premium and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Less: Current maturities Long-term debt and capital lease obligations, net of current maturities Interest rate Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate Interest rate Debt Instrument, Interest Rate, Stated Percentage Fair Value Disclosures [Abstract] Summary of Assets Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Carrying Value and Estimated Fair Value of Long-Term Debt, Including Current Maturities Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Summary of Availability under Revolving Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Components of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassifications out of Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Debt Debt Disclosure [Text Block] Series 2016-3 Class AA [Member] 2016-3 Series AA Enhanced Equipment Trust Certificates [Member] 2016-3 Series AA Enhanced Equipment Trust Certificates [Member] Series 2016-3 Class A [Member] 2016-3 Series A Enhanced Equipment Trust Certificates [Member] 2016-3 Series A Enhanced Equipment Trust Certificates [Member] Debt instrument, aggregate principal issued Debt Instrument, Face Amount Debt instrument, stated interest rate percentage Statement of Cash Flows [Abstract] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures and aircraft purchase deposits Payments to Acquire Productive Assets Purchases of short-term investments Payments to Acquire Short-term Investments Sales of short-term investments Proceeds from Sale of Short-term Investments Purchase of equity investment Payments to Acquire Equity Method Investments Decrease in restricted cash and short-term investments Increase (Decrease) in Restricted Cash and Investments Proceeds from sale of property and equipment and sale-leaseback transactions Proceeds From Sale Of Property Plant And Equipment and Sale Leaseback Transactions Proceeds From Sale Of Property Plant And Equipment and Sale Leaseback Transactions Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Payments on long-term debt and capital leases Repayments of Debt and Capital Lease Obligations Deferred financing costs Payments of Debt Issuance Costs Treasury stock repurchases Payments for Repurchase of Common Stock Dividend payments Payments of Ordinary Dividends Other financing activities Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash Cash, Period Increase (Decrease) Cash at beginning of period Cash at end of period Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Settlement of bankruptcy obligations Other Significant Noncash Transaction Bankruptcy Settlement Obligation Other Significant Noncash Transaction, Bankruptcy Settlement Obligation Supplemental information: Supplemental Cash Flow Information [Abstract] Interest paid, net Interest Paid, Net Income taxes paid Income Taxes Paid Commitments and Contingencies Disclosure [Abstract] Legal Proceedings Legal Matters and Contingencies [Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] AAG [Member] Parent Company [Member] AAG's Wholly-owned Subsidiaries [Member] Subsidiary of Common Parent [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Net receivables (payables) to related parties Number of share repurchase programs authorized Number of Share Repurchase Programs Authorized Number of Share Repurchase Programs Authorized Stock repurchase programs, authorized amount Stock Repurchase Program, Authorized Amount Stock repurchase programs, remaining authorized amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Stock repurchased (in shares) Stock Repurchased and Retired During Period, Shares Aggregate stock repurchase price Stock Repurchased and Retired During Period, Value Average cost per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Share Repurchase Programs and Dividends Stockholders' Equity Note Disclosure [Text Block] Term Loan Facility [Member] Term Loan Facility [Member] Term Loan Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Base Rate [Member] Base Rate [Member] Long-term debt, net Long-term Debt Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Line of credit facility, outstanding amount Long-term Line of Credit Fair Value Measurements and Other Investments Fair Value Disclosures [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Value [Member] Reported Value Measurement [Member] Fair Value [Member] Estimate of Fair Value Measurement [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Long-term debt, including current maturities Long-term Debt, Fair Value Summary of Cash Dividends Declared Dividends Declared [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Supplemental contributions by employer Defined Benefit Plan, Supplemental Contributions By Employer Defined benefit plan, supplemental contributions by employer. Minimum contributions by employer Defined Benefit Plan, Minimum Contributions by Employer Defined benefit plan minimum contributions by employer. Earnings Per Share [Abstract] Earnings Per Common Share Earnings Per Share [Text Block] Income Taxes Income Tax Disclosure [Text Block] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring [Member] Fair Value, Measurements, Recurring [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Money Market Funds [Member] Money Market Funds [Member] Corporate Obligations [Member] Corporate Debt Securities [Member] Bank Notes / Certificates of Deposit / Time Deposits [Member] Bank Time Deposits [Member] Repurchase Agreements [Member] Repurchase Agreements [Member] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Investment Secondary Categorization [Axis] Investment Secondary Categorization [Axis] Investments by Secondary Categorization [Domain] Investments by Secondary Categorization [Domain] Maturity Dates Exceeding One Year [Member] Maturity Dates Exceeding One Year [Member] Maturity Dates Exceeding One Year [Member] Short-term investments Available-for-sale Securities Restricted cash and short-term investments Restricted Cash and Cash Equivalents and Short-Term Investments, Fair Value Disclosure Restricted Cash and Cash Equivalents and Short-Term Investments, Fair Value Disclosure Total Assets, Fair Value Disclosure Airline Expenses [Abstract] Components of Regional Expenses Schedule Of Regional Operating Expenses [Table Text Block] Schedule Of Regional Operating Expenses Components of Net Periodic Benefit Cost (Income) Schedule of Net Benefit Costs [Table Text Block] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension Benefits [Member] Pension Plan [Member] Retiree Medical And Other Postretirement Benefits [Member] Other Postretirement Benefits Plan [Member] Components of net periodic benefit cost: Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Prior service cost (benefit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Unrecognized net loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Net periodic benefit cost (income) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Income Statement [Abstract] Operating revenues: Revenue, Net [Abstract] Mainline passenger Passenger Revenue, Mainline Regional passenger Passenger Revenue, Regional Cargo Cargo and Freight Revenue Other Other Revenue, Net Total operating revenues Revenue, Net Operating expenses: Costs and Expenses [Abstract] Aircraft fuel and related taxes Fuel Costs Salaries, wages and benefits Labor and Related Expense Regional expenses Airline, Capacity Purchase Arrangements Maintenance, materials and repairs Aircraft Maintenance, Materials, and Repairs Other rent and landing fees Landing Fees and Other Rentals Aircraft rent Aircraft Rental Selling expenses Selling and Marketing Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Special items, net Restructuring And Other Significant and non-routine operating expenses (credits) such as asset impairments and restructuring charges that may not be an indicator of future cash flows. Other Other Cost and Expense, Operating Total operating expenses Costs and Expenses Operating income Operating Income (Loss) Nonoperating income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense, net Interest Expense Other, net Other Nonoperating Income (Expense) Total nonoperating expense, net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax provision Net income Net Income (Loss) Attributable to Parent Earnings per common share: Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted Weighted average shares outstanding (in thousands): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Cash dividends declared per common share (in dollars per share) Regional Expenses Regional Operating Expenses [Text Block] Regional Operating Expenses [Text Block] 2017-2 EETC [Member] 2017-2 Enhanced Equipment Trust Certificates [Member] 2017-2 Enhanced Equipment Trust Certificates [Member] 2017-1 EETC [Member] 2017-1 Enhanced Equipment Trust Certificates [Member] 2017-1 Enhanced Equipment Trust Certificates [Member] Number of pass-through trusts issued Number Of Pass Through Trusts Issued Number Of Pass Through Trusts Issued Debt instrument principal amount Number of aircraft financed by debt issuance Number of Aircraft Financed by Debt Issuance Number of aircraft financed by debt issuance. Debt instrument, escrowed proceeds used to purchase notes Proceeds from Issuance of Secured Debt Restructuring and Related Activities [Abstract] Special Items, Net Restructuring and Related Activities Disclosure [Text Block] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Regional Carrier [Member] Regional Carrier [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Merger integration expenses Business Combination, Integration Related Costs Fleet restructuring expenses Restructuring Charges Mark-to-market adjustments for bankruptcy obligations and other Mark To Market Adjustments for Bankruptcy Obligations and Other Mark-to Market Adjustments for Bankruptcy Obligations and Other Labor contract expenses Labor Contract Expenses Labor Contract Expenses Other operating charges, net Other Operating Special Charges, Net Other Operating Special Charges, Net Operating special items, net Nonoperating special items, net Non-Operating Special Items, Net Nonoperating net expenses (credits) recognized in the period that are infrequent in occurrence or unusual in nature. Document And Entity Information [Abstract] Document and entity information. Document Information [Table] Document Information [Table] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Statement of Comprehensive Income [Abstract] Net income Other comprehensive loss, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Pension, retiree medical and other postretirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Investments Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Total other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Computation of Basic and Diluted Earnings per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] 2016-3 Class B EETC [Member] 2016-3 Series B Enhanced Equipment Trust Certificates [Member] 2016-3 Series B Enhanced Equipment Trust Certificates [Member] 2017-2 Class B EETC [Member] 2017-2 Series B Enhanced Equipment Trust Certificates [Member] 2017-2 Series B Enhanced Equipment Trust Certificates [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Common stock dividends per share declared (in dollars per share) Accounting Policies [Abstract] Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Regional Expenses [Table] Regional Expenses [Table] Regional Expenses [Table] Regional Expenses [Line Items] Regional Expenses [Line Items] Regional Expenses [Line Items] Capacity purchases from third-party regional carriers Capacity Purchases Capacity Purchases Total regional expenses Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Series 2017-2 Class AA [Member] 2017-2 Series AA Enhanced Equipment Trust Certificates [Member] 2017-2 Series AA Enhanced Equipment Trust Certificates [Member] Series 2017-2 Class A [Member] 2017-2 Series A Enhanced Equipment Trust Certificates [Member] 2017-2 Series A Enhanced Equipment Trust Certificates [Member] Series 2017-1 Class AA [Member] 2017-1 Series AA Enhanced Equipment Trust Certificates [Member] 2017-1 Series AA Enhanced Equipment Trust Certificates [Member] Series 2017-1 Class A [Member] 2017-1 Series A Enhanced Equipment Trust Certificates [Member] 2017-1 Series A Enhanced Equipment Trust Certificates [Member] Series 2017-1 Class B [Member] 2017-1 Series B Enhanced Equipment Trust Certificates [Member] 2017-1 Series B Enhanced Equipment Trust Certificates [Member] Debt instrument, remaining escrowed proceeds Debt Instrument, Unused Borrowing Capacity, Amount Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] China Southern Airlines Company Limited [Member] China Southern Airlines Company Limited [Member] China Southern Airlines [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Cost method investments, ownership percentage Cost Method Investments, Ownership Percentage Cost Method Investments, Ownership Percentage Cost method investments Cost Method Investments Cost method investments, required holding period Cost Method Investments, Required Holding Period Cost Method Investments, Required Holding Period 2016-3 EETC [Member] 2016-3 Enhanced Equipment Trust Certificates [Member] 2016-3 Enhanced Equipment Trust Certificates [Member] Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Pension, Retiree Medical and Other Postretirement Benefits [Member] Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI, before tax AOCI Before Tax, Attributable To Parent [Roll Forward] AOCI Before Tax, Attributable To Parent [Roll Forward] Beginning balance, before tax AOCI before Tax, Attributable to Parent Other comprehensive loss, before reclassifications, before tax OCI, before Reclassifications, before Tax, Attributable to Parent Amounts reclassified from AOCI, before tax Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Net current-period other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax Ending balance, before tax AOCI, tax AOCI Tax, Attributable to Parent [Roll Forward] AOCI Tax, Attributable to Parent [Roll Forward] Beginning balance, tax AOCI Tax, Attributable to Parent Amounts reclassified from AOCI, tax Reclassification from AOCI, Current Period, Tax Net current-period other comprehensive income (loss), tax Other Comprehensive Income (Loss), Tax Ending balance, tax AOCI, after tax AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance, net of tax Other comprehensive loss before reclassifications, after tax OCI, before Reclassifications, Net of Tax, Attributable to Parent Amounts reclassified from AOCI, net of tax Ending balance, net of tax Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Shares reserved for future issuance Common Stock, Capital Shares Reserved for Future Issuance Number of putative class action lawsuits Number Of Putative Class Action Lawsuits Number of putative class action lawsuits. Accumulated amortization of intangibles Finite-Lived Intangible Assets, Accumulated Amortization Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Basic EPS: Earnings Per Share, Basic [Abstract] Weighted average common shares outstanding (in thousands) Basic EPS (in dollars per share) Diluted EPS: Earnings Per Share, Diluted [Abstract] Net income for purposes of computing diluted EPS Net Income (Loss) Available to Common Stockholders, Diluted Share computation for diluted EPS (in thousands): Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Basic weighted average common shares outstanding Dilutive effect of stock awards Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Diluted weighted average common shares outstanding Diluted EPS (in dollars per share) Restricted stock unit awards excluded from the calculation of diluted EPS because inclusion would be antidilutive Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Proceeds from notes payable Proceeds from Secured Notes Payable Components of Special Items, Net Included in Condensed Consolidated Statements of Operations Restructuring and Related Costs [Table Text Block]