Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Finance leases: Finance Lease, Assets And Liabilities, Lessee [Abstract] Finance Lease, Assets And Liabilities, Lessee [Abstract] Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Statutory income tax provision Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Cover [Abstract] Cover [Abstract] 2030 and thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Airline Destination [Table] Airline Destination [Table] Net increase in cash and restricted cash Net increase in cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Contributions to pension plans Increase (Decrease) in Obligation, Pension Benefits Ownership interest, fair value method investments Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Republic Holdings Republic Airline Inc [Member] Republic Airline Inc [Member] Trading Symbol Trading Symbol Ownership Interest Ownership interest, equity method investments Equity Method Investment, Ownership Percentage 2029 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Long-term debt and finance leases, net of current maturities Long-Term Debt and Lease Obligation Non-NEOs Non-NEOs [Member] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Maximum LTV Debt Instrument Collateral Covenant Maximum Loan To Value Ratio Debt Instrument, Collateral Covenant, Maximum Loan-to-Value Ratio Line of Credit Facility [Table] Line of Credit Facility [Table] Domestic airport slots and airport gate leasehold rights Domestic Airport Slots And Airport Gate Leasehold Rights [Member] Domestic Airport Slots And Airport Gate Leasehold Rights Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Purchase of equity investments Payments to Acquire Equity Securities, FV-NI Decrease (increase) in accounts receivable Increase (Decrease) in Accounts Receivable Aircraft Fuel, Spare Parts and Supplies, Net Inventory, Policy [Policy Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Unrecorded Unconditional Purchase Obligation [Line Items] Unrecorded Unconditional Purchase Obligation [Line Items] Fair Value Measurements Fair Value Disclosures [Text Block] Leases Deferred Tax Assets, Leases Deferred Tax Assets, Leases Award Timing Disclosures [Line Items] Other Defined Benefit Plan, Other Investment [Member] Defined Benefit Plan, Other Investment [Member] Investment, Name [Domain] Investment, Name [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Proceeds from sale-leaseback transactions and sale of property and equipment Proceeds From Sale Of Property Plant And Equipment And Sale Leaseback Transactions Proceeds From Sale Of Property Plant And Equipment And Sale Leaseback Transactions Property and equipment, at cost Finance Lease, Right-of-Use Asset, before Accumulated Amortization 2026 Purchase Obligation, to be Paid, Year Two Initial Term Loan Initial Term Loan [Member] Initial Term Loan SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Plan Name [Domain] Plan Name [Domain] Total other assets Other Assets, Noncurrent Leases [Abstract] Leases [Abstract] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Receivable Type [Axis] Receivable Type [Axis] Net cash provided by operating activities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Components of Accumulated Other Comprehensive Loss (AOCI) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Secured Debt Secured Debt [Member] Rehabilitation plan, percentage increase in company annual contributions Multiemployer Plans, Funding Improvement Plan And Rehabilitation Plan, Annual Percentage Increase In Contribution Rate By Employer Multiemployer Plans, Funding Improvement Plan And Rehabilitation Plan, Annual Percentage Increase In Contribution Rate By Employer 10.75% Senior Secured Notes 10.75% Senior Secured Notes [Member] 10.75% Senior Secured Notes Repurchase agreements Repurchase Agreements [Member] Senior Secured LGA/DCA Notes 10.75% 10.75% Senior Secured Notes, LGA/DCA Notes [Member] 10.75% Senior Secured Notes, LGA/DCA Notes Award Timing Method Award Timing Method [Text Block] Net periodic benefit cost (income) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Finance lease cost: Finance Lease, Cost1 [Abstract] Finance Lease, Cost1 [Abstract] A330 fleet-related adjustments A330 fleet-related adjustments Flight Equipment, Operating Lease, And Inventory Adjustments Flight Equipment, Operating Lease, And Inventory Adjustments Measurement Frequency [Axis] Measurement Frequency [Axis] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Finance leases Finance Lease, Weighted Average Remaining Lease Term Insider Trading Policies and Procedures [Line Items] Fair value of plan assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets Deferred Profit Sharing Deferred Profit Sharing [Member] Amounts reclassified from AOCI, before tax Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Adjustment to Compensation, Amount Adjustment to Compensation Amount Additional paid-in capital Additional Paid in Capital, Common Stock Compensation Amount Outstanding Recovery Compensation Amount Disposal Group Classification [Axis] Disposal Group Classification [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Investments Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Entity Small Business Entity Small Business Company Selected Measure Amount Company Selected Measure Amount Tabular List, Table Tabular List [Table Text Block] Level 3     Fair Value, Inputs, Level 3 [Member] Deductions and Other SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Airline Destination Disclosure [Line Items] Airline Destination Disclosure [Line Items] Weighted average expected rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets If-converted value in excess of principal Debt Instrument, Convertible, If-converted Value in Excess of Principal Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Postretirement benefits other than pension benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Debt Conversion Scenario [Domain] Debt Conversion Scenario [Domain] Debt Conversion Scenario [Domain] Impairment Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Credit Facility [Domain] Credit Facility [Domain] Atlantic Atlantic Destination [Member] Goodwill Goodwill Payment of certain tax withholding obligations associated with employee equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Operating Expenses Other Cost And Expense Operating [Policy Text Block] Other Cost And Expense Operating [Policy Text Block] Public U.S. Fixed Income Fixed Income Securities [Member] Employee Stock Option Share-Based Payment Arrangement, Option [Member] 2025 Lessee, Operating Lease, Liability, to be Paid, Year One Other financing activities Proceeds from (Payments for) Other Financing Activities Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Pension Benefits Pension Plan [Member] Finance leases Finance Lease, Weighted Average Discount Rate, Percent 2025 Finance Lease, Liability, to be Paid, Year One Award Type [Axis] Award Type [Axis] Corporate obligations Corporate Debt Securities [Member] Basic EPS: Earnings Per Share, Basic [Abstract] 2013 Credit Facility and 7.25% Senior Secured Notes 2013 Credit Facility and 7.25% Senior Secured Notes [Member] 2013 Credit Facility and 7.25% Senior Secured Notes ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Airport development, amount Property, Plant & Equipment, Expected Cost Property, Plant & Equipment, Expected Cost AOCI tax, attributable to parent [Roll Forward] AOCI Tax, Attributable to Parent [Roll Forward] AOCI Tax, Attributable to Parent [Roll Forward] Convertible Debt Convertible Debt [Member] Consolidated reporting unit Number of Reporting Units Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Mandatory prepayment amount, threshold net proceeds from pre-paid frequent flyer Debt Instrument, Mandatory Prepayment Amount, Threshold Net Proceeds From Pre-paid Frequent Flyer Debt Instrument, Mandatory Prepayment Amount, Threshold Net Proceeds From Pre-paid Frequent Flyer Foreign Currency Gains and Losses Foreign Currency Transactions and Translations Policy [Policy Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Revolving Credit Facility Revolving Credit Facility [Member] Expiration Date Trading Arrangement Expiration Date Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Number of spare aircraft engines owned through financing under EETCs Number Of Spare Aircraft Engines Owned Enhanced Equipment Trust Certificate Number Of Spare Aircraft Engines Owned Enhanced Equipment Trust Certificate Operating lease liabilities Current operating lease liabilities Less: Current obligations Operating Lease, Liability, Current Total Shareholder Return Amount Total Shareholder Return Amount Threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] State, local and foreign income tax provision, net of federal tax effect Effective Income Tax Rate Reconciliation, State, Local, And Foreign Income Taxes, Amount Effective Income Tax Rate Reconciliation, State, Local, And Foreign Income Taxes, Amount Components of Valuation and Qualifying Accounts Schedule Of Valuation And Qualifying Accounts [Table Text Block] Schedule Of Valuation And Qualifying Accounts [Table Text Block] Other Revolving Facility Other Revolving Facility [Member] Other Revolving Facility Subsequent Event [Line Items] Subsequent Event [Line Items] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Less accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Diluted (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Cargo Cargo and Freight [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] AOCI attributable to parent, net of tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] 2025 Purchase Obligation, to be Paid, Year One Total stockholders’ deficit Beginning Balance Ending Balance Equity, Attributable to Parent Total deferred tax assets Deferred Tax Assets, Gross 2028 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four Litigation Case [Axis] Litigation Case [Axis] Multiemployer plan, funded status percentage (over) Multiemployer Plans, Funded Status, Percentage Multiemployer Plans, Funded Status, Percentage Collective-Bargaining Arrangement [Domain] Collective-Bargaining Arrangement [Domain] Equipment Loans and Other Notes Payable Issue in Current Year Equipment Loans and Other Notes Payable Issued in Current Year [Member] Equipment Loans and Other Notes Payable Issued in Current Year Concentration Risk Type [Domain] Concentration Risk Type [Domain] Category of Item Purchased [Axis] Category of Item Purchased [Axis] Contributions to defined contribution benefit plans Defined Contribution Plan, Cost Senior Secured IP Notes 10.75% Due 2026 10.75% Senior Secured Notes, IP Notes [Member] 10.75% Senior Secured Notes, IP Notes Debt Conversion, Circumstance One Debt Conversion, Scenario One [Member] Debt Conversion, Scenario One Auditor [Table] Auditor [Table] Cash Equivalents Defined Benefit Plan, Cash and Cash Equivalents [Member] Shares authorized for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Private Income Private Fixed Income [Member] Private Fixed Income [Member] Document Fiscal Period Focus Document Fiscal Period Focus Loyalty revenue - travel Loyalty Program, Travel Redemptions [Member] Loyalty Program, Travel Redemptions [Member] 2028 Long-Term Debt, Maturity, Year Four All Executive Categories All Executive Categories [Member] Dilutive effect of stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Total Equity Securities [Member] 6.50% convertible senior notes Convertible Debt Securities [Member] Unrealized Gain (Loss) on Investments AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Expected amortization expense in 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Two Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets [Abstract] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Contract term Revenue, Performance Obligation, Description of Timing Document Type Document Type Interest rate, effective percentage Debt Instrument, Interest Rate, Effective Percentage Allied Pilots Association Allied Pilots Association [Member] Allied Pilots Association Actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Debt Instrument, Redemption, Period Three Debt Instrument, Redemption, Period Three [Member] PSP1 Warrants Payroll Support Program One Warrants, CARES Act [Member] Payroll Support Program One Warrants, CARES Act Contractual coupon interest Interest Expense, Debt, Excluding Amortization Residual value percentage of equipment and properties Property, Plant and Equipment, Salvage Value, Percentage Long-term Purchase Commitments Long-Term Purchase Commitment [Table Text Block] Defined Benefit Plan [Table] Defined Benefit Plan [Table] Schedule of Contract Balances Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Association of Professional Flight Attendants Association of Professional Flight Attendants [Member] Association of Professional Flight Attendants Subsequent Event [Table] Subsequent Event [Table] AAG Parent Company [Member] Maximum Maximum [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Furniture, fixtures and other equipment Furniture and Fixtures [Member] Definite-lived intangible assets, net Finite-Lived Intangible Assets, Net Antidilutive Securities [Axis] Antidilutive Securities [Axis] Accounts payable AAG's wholly-owned subsidiaries Accounts Payable, Current Litigation reserve adjustments Gain (Loss) from Litigation Settlement American Airlines, Inc. American Airlines, Inc [Member] American Airlines, Inc Collective-Bargaining Arrangement [Axis] Collective-Bargaining Arrangement [Axis] Maintenance, materials and repairs Aircraft Maintenance, Materials, and Repairs Operating leases: Operating Lease, Assets And Liabilities, Lessee [Abstract] Operating Lease, Assets And Liabilities, Lessee [Abstract] Total net lease cost Lease, Cost Credit Facilities Credit Facilities [Member] Credit Facilities Statistical Measurement [Axis] Statistical Measurement [Axis] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Number of Shares, Modified (in shares) Number of Shares, Modified (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Modifications In Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Modifications In Period Name Outstanding Recovery, Individual Name Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Unusual or Infrequent Item, or Both [Line Items] Unusual or Infrequent Item, or Both [Line Items] Variable lease cost Variable Lease, Cost Goodwill impairment Goodwill, Impairment Loss Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Capacity purchase agreement, percentage of reimbursement for certain variable costs Reimbursement Receivable Percentage Under Agreement Reimbursement receivable percentage under agreement. Liability related to cash settled awards Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent Award Timing Predetermined Award Timing Predetermined [Flag] Restricted short-term investments, noncurrent Restricted Short-Term Investments, Noncurrent Restricted Short-Term Investments, Noncurrent Subsequent Event Type [Domain] Subsequent Event Type [Domain] Investment, Name [Axis] Investment, Name [Axis] Redemption price percentage Debt Instrument, Redemption Price, Percentage 43 Embraer 145 Aircraft Embraer 145 Aircraft [Member] Embraer 145 Aircraft Prior service cost (benefit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Debt Conversion Scenario [Axis] Debt Conversion Scenario [Axis] Debt Conversion Scenario Forecast Forecast [Member] Diluted (in dollars per share) Diluted EPS (in dollars per share) Earnings Per Share, Diluted Counterparty Name [Domain] Counterparty Name [Domain] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] State State and Local Jurisdiction [Member] Increase (decrease) in customer liabilities Increase (Decrease) in Contract with Customer, Liability State, local and foreign Current Income Tax Expense (Benefit) Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Ownership [Axis] Ownership [Axis] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Other Deferred Tax Liabilities, Other Selling expenses Selling and Marketing Expense Total fair value of stock-settled during the year Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Aircraft [Domain] Aircraft [Domain] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Income tax provision Income tax provision Total income tax provision Income Tax Expense (Benefit) Interest cost Defined Benefit Plan, Interest Cost Nonoperating income (expense): Nonoperating Income (Expense) [Abstract] Operating loss carryforwards and other carryforwards, not subject to expiration Operating Loss Carryforwards And Other Carryforwards, Not Subject to Expiration Operating Loss Carryforwards And Other Carryforwards, Not Subject to Expiration Account Receivable from Business Partners Account Receivable From Business Partners [Member] Account Receivable From Business Partners Short-term investments Short-term investments Debt Securities, Available-for-Sale, Current Defined benefit plans: Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Recognition period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Total operating revenues Operating revenues Revenue from Contract with Customer, Excluding Assessed Tax Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Deferral of revenue Contract with Customer, Liability, Increase from Deferral Of Revenue Contract with Customer, Liability, Increase from Deferral Of Revenue Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Number of revenue components Number Of Revenue Components Number Of Revenue Components Passenger Passenger [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Accrued salaries and wages Employee-related Liabilities, Current Aircraft fuel, spare parts and supplies, net Airline Related Inventory, Net Interest Rate Years Six Through Ten Interest Rate Years Six Through Ten [Member] Interest Rate Years Six Through Ten [Member] Pacific Pacific Destination [Member] Guarantor obligations, maximum exposure, undiscounted Guarantor Obligations, Maximum Exposure, Undiscounted Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Legal Entity [Axis] Legal Entity [Axis] Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Scenario [Domain] Scenario [Domain] Related Party Transaction [Axis] Related Party Transaction [Axis] Name of Property [Domain] Name of Property [Domain] Airline Capacity Purchase Arrangements Airline Capacity Purchase Arrangements [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity Address, State or Province Entity Address, State or Province Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Financial Instruments [Domain] Financial Instruments [Domain] Weighted Average Grant Date Fair Value, Beginning Balance (in dollars per share) Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT) Liabilities and Equity [Abstract] Total liabilities Liability, Defined Benefit Plan Components of Net Periodic Benefit Cost (Income) Schedule of Net Benefit Costs [Table Text Block] Maintenance, Materials and Repairs Maintenance Cost, Policy [Policy Text Block] Restatement Determination Date Restatement Determination Date Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Quarterly installments Debt Instrument, Periodic Payment Additions Charged to Statement of Operations Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Advertising expense Marketing and Advertising Expense Operating lease right-of-use assets Operating lease ROU assets Operating Lease, Right-of-Use Asset Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] 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. Operating loss carryforwards and other carryforwards, subject to expiration Operating Loss Carryforwards And Other Carryforwards, Subject To Expiration Operating Loss Carryforwards And Other Carryforwards, Subject To Expiration Plan amendments Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment Lease Contractual Term [Axis] Lease Contractual Term [Axis] Prior service cost Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Special items, net Restructuring And Other Expense (Income), Mainline Restructuring And Other Expense (Income), Mainline Earnings Per Common Share Earnings Per Share [Text Block] Subsequent Event Subsequent Event [Member] Operating expenses: Costs and Expenses [Abstract] Schedule of Convertible Debt Convertible Debt [Table Text Block] Weighted Average Grant Date Fair Value, Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Restricted Cash Restricted Cash [Member] Restricted Cash Income Taxes Income Tax, Policy [Policy Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Maturities of Finance Lease Liabilities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Net current-period other comprehensive income (loss), tax Other Comprehensive Income (Loss), Tax Maturities of Long-term Debt [Abstract] Maturities of Long-Term Debt [Abstract] PEO PEO [Member] Name Trading Arrangement, Individual Name Funded status at end of period Defined Benefit Plan, Funded (Unfunded) Status of Plan Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Total accumulated other comprehensive loss (income), pre-tax Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Entity Public Float Entity Public Float Labor contract expenses Other Labor-related Expenses Regional Expenses [Line Items] Regional Expenses [Line Items] Regional Expenses [Line Items] Commitments, Contingencies and Guarantees Commitments Contingencies and Guarantees [Text Block] Line of credit facility undrawn fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Benefit obligation at beginning of period Benefit obligation at end of period Defined Benefit Plan, Benefit Obligation Cash paid for awards vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Gain on sale leaseback transactions, net Sale and Leaseback Transaction, Gain (Loss), Net Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Local Phone Number Local Phone Number Workforce Subject to Collective-Bargaining Arrangements Expiring within One Year Workforce Subject to Collective-Bargaining Arrangements Expiring within One Year [Member] Number of aircrafts permanently parked Number Of Aircrafts Permanently Parked Number Of Aircrafts Permanently Parked Valuation allowance Deferred Tax Assets, Valuation Allowance Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain] Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain] PSP Promissory Notes Payroll Support Program, Promissory Note, CARES Act [Member] Payroll Support Program, Promissory Note, CARES Act Purchases Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase for Purchase Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Noncurrent liabilities Liabilities, Noncurrent [Abstract] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] PEO Total Compensation Amount PEO Total Compensation Amount International Small/Mid Defined Benefit Plan, Equity Securities, Non-US Small/Mid [Member] Defined Benefit Plan, Equity Securities, Non-US Small/Mid Regional Expenses Regional Expenses, Policy [Policy Text Block] Regional Expenses, Policy Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Net current-period other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Common Stock Common Stock [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Debt Instrument, Redemption, Period One Debt Instrument, Redemption, Period One [Member] Line of Credit Line of Credit [Member] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Segment Reporting [Abstract] Segment Reporting [Abstract] Common stock withheld or sold related to tax obligations (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Other Intangibles, Net Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Entity Central Index Key Entity Central Index Key Scenario [Axis] Scenario [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Credit Facility 2023 Credit Facility 2023 [Member] Credit Facility 2023 2023 Credit Facilities 2023 Term Loan Facility [Member] 2023 Term Loan Facility Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Less: Current maturities Long-Term Debt, Current Maturities Segment Disclosures Segment Reporting Disclosure [Text Block] AAG Other Receivables, Gross, Current Operating lease commitments that have not yet commenced, lease term Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Fair Value, Inputs, Level 1, 2 and 3 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Actuarial loss Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] 2025 Unrecorded Unconditional Purchase Obligation, to be Paid, Year One Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Measurement Basis [Axis] Measurement Basis [Axis] Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Title Trading Arrangement, Individual Title Senior Notes 3.75% Matures 2025 Senior Note 3.75% Matures 2025 [Member] Senior Note 3.75% Matures 2025 Unsecured Debt Unsecured Debt [Member] City Area Code City Area Code Current liabilities Liabilities, Current [Abstract] Auditor Location Auditor Location Other rent and landing fees Landing Fees and Other Rentals Covenant terms, minimum aggregate liquidity required Line Of Credit Facility, Covenant Terms, Minimum Aggregate Liquidity Required Line Of Credit Facility, Covenant Terms, Minimum Aggregate Liquidity Required Disposal Group Classification [Domain] Disposal Group Classification [Domain] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Purchases of short-term investments Payments to Acquire Short-Term Investments Mainline Mainline [Member] Number of aircraft owned through financing under EETCs Number Of Aircraft Owned Enhanced Equipment Trust Certificate Number of Aircraft Owned, Enhanced Equipment Trust Certificate Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity China Southern Airlines China Southern Airlines Company Limited [Member] China Southern Airlines [Member] Document Information [Line Items] Document Information [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Weighted Average Grant Date Fair Value [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Investments Investment [Text Block] Earnings per common share: Earnings Per Share [Abstract] Equity [Abstract] Equity [Abstract] Retained deficit Retained Earnings (Accumulated Deficit) Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Reclassifications out of AOCI Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Class of Stock [Domain] Class of Stock [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Elements [Abstract] Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Mark-to-market adjustments on equity and other investments, net Equity Securities, FV-NI, Unrealized Gain (Loss) 2026 Long-Term Debt, Maturity, Year Two Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Total operating lease liabilities Operating lease liabilities Operating Lease, Liability Performance obligation term Revenue, Performance Obligation, Term Revenue, Performance Obligation, Term Underlying Securities Award Underlying Securities Amount Collective bargaining agreement, one-time payment Collective Bargaining Agreement, One-time Payment, Amount Collective Bargaining Agreement, One-time Payment, Amount Net periodic benefit cost (income) for the years ended December 31: Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] 2029 Finance Lease, Liability, to be Paid, Year Five Amendment Flag Amendment Flag Carrying Value Reported Value Measurement [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dilutive effect of certain PSP Warrants and Treasury Loan Warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Fixed Income Defined Benefit Plan, Debt Security [Member] Amortization of assets Finance Lease, Right-of-Use Asset, Amortization Subsequent Events [Abstract] Subsequent Events [Abstract] Selling Expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Debt Debt Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Change in fair value measurements of level 3 investments Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward] Aggregate principal issued Debt Instrument, Face Amount Number of private party plaintiffs who filed putative class action Number Of Private Party Plaintiffs Who Filed Putative Class Action Number Of Private Party Plaintiffs Who Filed Putative Class Action Floor interest rate Debt Instrument, Basis Spread On Variable Rate, Floor Interest Rate Debt Instrument, Basis Spread On Variable Rate, Floor Interest Rate Entity Address, Postal Zip Code Entity Address, Postal Zip Code Income tax special items, net Income Tax Special Items, Net Income Tax Special Items, Net Long-term Purchase Commitment [Table] Long-Term Purchase Commitment [Table] Beginning balance, tax Ending balance, tax AOCI Tax, Attributable to Parent Schedule of Amounts Recognized in Consolidated Balance Sheets Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Equity Investments [Table] Schedule of Investments [Table] Special items, net non-cash Special Charges Non Cash Special Charges Non Cash Impairment of intangible assets, indefinite-lived (excluding goodwill) Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) Other investing activities Payments for (Proceeds from) Other Investing Activities Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] B-787-9 B-787-9 [Member] B-787-9 Auditor Name Auditor Name Amounts reclassified from AOCI, tax Reclassification from AOCI, Current Period, Tax Threshold trading days Debt Instrument, Convertible, Threshold Trading Days Debt refinancing, extinguishment and other, net Debt Refinancing, Debt Extinguishment And Other Expense Debt Refinancing, Debt Extinguishment And Other Expense Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Schedule of Equity Investments Investment [Table Text Block] Beginning balance, before tax Ending balance, before tax AOCI before Tax, Attributable to Parent Current income tax benefit: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Aircraft, engines and related rotable parts Aircraft, Engines and Related Rotable Parts Member Aircraft, Engines and Related Rotable Parts Member Debt extinguishment costs Gain (Loss) on Extinguishment of Debt Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Estimated useful life Property, Plant and Equipment, Useful Life Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Fair Value Measurement [Domain] Fair Value Measurement [Domain] Payment in Kind (PIK) Note Payment in Kind (PIK) Note [Member] Increase in accounts payable Increase (Decrease) in Accounts Payable Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Total property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Foreign currency losses Realized Gain (Loss), Foreign Currency Transaction, before Tax Financing cash flows from finance leases Finance Lease, Principal Payments Account Receivable from Ticket Sales Accounts Receivable From Ticket Sales [Member] Accounts Receivable From Ticket Sales Interest Rate Margin One Interest Rate Margin One [Member] Interest Rate Margin One Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Weighted average shares outstanding (in thousands): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Total assets Assets Auditor [Line Items] Auditor [Line Items] Other liabilities Other Liabilities, Noncurrent Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Commitments and contingencies Commitments and Contingencies Share-based Compensation Share-Based Payment Arrangement [Policy Text Block] Domestic Domestic Destination [Member] Reconciliation of Income Tax Provision Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Auditor Information [Abstract] Auditor Information Termination Date Trading Arrangement Termination Date Related Party Transaction [Table] Related Party Transaction [Table] 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] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two 2028 Purchase Obligation, to be Paid, Year Four 2025 Long-Term Debt, Maturity, Year One Rent expense Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Interest Rate First Five Years Interest Rate First Five Years [Member] Interest Rate First Five Years [Member] Credit Facility 2013, Tenth Amendment Credit Facility 2013, Tenth Amendment [Member] Credit Facility 2013, Tenth Amendment Debt Instrument [Axis] Debt Instrument [Axis] Net income Net income Net income Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] 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 2030-2034 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Aircraft and Engine Commitments Aircraft And Engine Commitments [Member] Aircraft And Engine Commitments Schedule of Allocation of Plan Assets Schedule of Allocation of Plan Assets [Table Text Block] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Entity File Number Entity File Number Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost Defined Benefit Plan, Assumptions [Table Text Block] Regional Airports Improvement Corporation Regional Airports Improvement Corporation [Member] Regional Airports Improvement Corporation 2030 and Thereafter Purchase Obligation, to be Paid, after Year Five Fair value of plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Republic Holdings Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] Segment Reporting, Revenue from External Customer, Product and Service [Table] Segment Reporting, Revenue from External Customer, Product and Service [Table] Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Other comprehensive income (loss) before reclassifications, before tax OCI, before Reclassifications, before Tax, Attributable to Parent Share computation for diluted EPS: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Name Forgone Recovery, Individual Name Underlying Asset Class [Axis] Underlying Asset Class [Axis] Common/collective trusts Common Collective Trust [Member] Operating leases Operating Lease, Weighted Average Remaining Lease Term 2029 Purchase Obligation, to be Paid, Year Five Investments Investment, Policy [Policy Text Block] Other, net Other Noncash Income (Expense) Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Schedule of Expected Future Service Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] LAX Modernization Project LAX Modernization Project [Member] LAX Modernization Project Commitments and Contingencies [Line Items] Commitments and Contingencies [Line Items] [Line Items] for Commitments and Contingencies [Table] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Depreciation and amortization Mainline And Express Depreciation And Amortization Mainline And Express Depreciation And Amortization PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Term Loan Term Loan [Member] Term Loan Adjustment to Compensation: Adjustment to Compensation [Axis] Aircraft Fuel, Flight Equipment Maintenance and Information Technology Support Aircraft Fuel, Flight Equipment Maintenance and Information Technology Support [Member] Aircraft Fuel, Flight Equipment Maintenance and Information Technology Support Restricted payments liquidity requirement Line Of Credit Facility, Covenant Terms, Restricted Payments Liquidity Requirement Line Of Credit Facility, Covenant Terms, Restricted Payments Liquidity Requirement Litigation Case [Domain] Litigation Case [Domain] Pension, retiree medical and other postretirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Interest rate margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Related Party [Axis] Related and Nonrelated Parties [Axis] Basic (in shares) Weighted average common shares outstanding (in shares) Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Document Information [Table] Document Information [Table] Strategic target asset allocation Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Leased Aircrafts Leased Aircraft [Member] Leased Aircraft Name Awards Close in Time to MNPI Disclosures, Individual Name Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Entity Filer Category Entity Filer Category Other revenue Other Revenue [Member] Other Revenue [Member] Inactive period before expiration of mileage credits Inactive Period Before Expiration Of Mileage Credits Inactive Period Before Expiration Of Mileage Credits Unusual or Infrequent Item, or Both [Table] Unusual or Infrequent Item, or Both [Table] Statistical Measurement [Domain] Statistical Measurement [Domain] Interest Rate Margin Three Interest Rate Margin Three [Member] Interest Rate Margin Three Components of Lease Expense Lease, Cost [Table Text Block] Emerging Markets Emerging Markets [Member] Emerging Markets [Member] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Deferred Compensation Arrangement with Individual, Excluding Share-Based Payment and Postretirement Benefit [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Adjustments to other benefit-related items Collective Bargaining Agreement, Adjustments to Other Benefit Related Items Collective Bargaining Agreement, Adjustments to Other Benefit Related Items All Trading Arrangements All Trading Arrangements [Member] Loyalty revenue - marketing services Loyalty Program, Marketing Services [Member] Loyalty Program, Marketing Services [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Restricted Cash and Short-term Investments Restricted Cash And Short Term Investments, Policy [Policy Text Block] Restricted Cash And Short Term Investments, Policy Computation of Basic and Diluted Earnings per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Debt instrument, conversion ratio Debt Instrument, Convertible, Conversion Ratio Carrying value, equity method investments Equity Method Investments Pay vs Performance Disclosure [Line Items] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Deferred income tax provision: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Increase (decrease) in other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Operating special items, net Restructuring And Other, Net Restructuring And Other, Net Other Performance Measure, Amount Other Performance Measure, Amount Expected amortization expense in 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Three Leases Lessee, Operating Leases [Text Block] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Operating lease cost Operating Lease, Cost Receivables from related parties, net Total Other Receivables, Net, Current Fuel financing payable Short-Term Bank Loans and Notes Payable Operating lease liabilities Noncurrent operating lease liabilities Long-term lease obligations Operating Lease, Liability, Noncurrent Benefit payments Defined Benefit Plan, Benefit Obligation, Benefits Paid Accelerated depreciation and amortization Deferred Tax Liabilities Accelerated Depreciation And Amortization Deferred Tax Liabilities Accelerated Depreciation And Amortization Other Product and Service, Other [Member] Interest on lease liabilities Finance Lease, Interest Expense Air traffic/Loyalty program liabilities Customer liabilities, current Contract with Customer, Liability, Current Unrecorded Unconditional Purchase Obligations Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] Service cost Defined Benefit Plan, Service Cost PSP2 Warrants Payroll Support Program Two Warrants, CARES Act [Member] Payroll Support Program Two Warrants, CARES Act Entity Tax Identification Number Entity Tax Identification Number Equity Defined Benefit Plan, Equity Securities [Member] U.S. Small/Mid Defined Benefit Plan, Equity Securities, US, Small/Mid Cap [Member] Defined Benefit Plan, Equity Securities, US, Small/Mid Cap Retirement Plan Type [Axis] Retirement Plan Type [Axis] Private Party Antitrust Actions Related to the Northeast Alliance Private Party Antitrust Actions Related to the Northeast Alliance [Member] Private Party Antitrust Actions Related to the Northeast Alliance Weighted average health care cost trend rate assumed thereafter Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Money market funds Money Market Funds [Member] U.S. Large Defined Benefit Plan, Equity Securities, US, Large Cap [Member] Interest expense on 6.50% convertible senior notes Interest on Convertible Debt, Net of Tax Debt Instrument, Redemption, Period Two Debt Instrument, Redemption, Period Two [Member] Other Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Other Change Deferred tax assets: Deferred Tax Assets, Net [Abstract] Other Other Cost and Expense, Operating Plan Name [Axis] Plan Name [Axis] 2030 and thereafter Finance Lease, Liability, to be Paid, after Year Five Loyalty program liability Loyalty Program [Member] Loyalty Program [Member] Equity Components [Axis] Equity Components [Axis] 2026 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two Total lease payments Finance Lease, Liability, to be Paid PSP2 Promissory Note Payroll Support Program Promissory Note Two, CARES Act [Member] Payroll Support Program Promissory Note Two, CARES Act Accounts Receivable, Net Accounts Receivable [Policy Text Block] Total operating expenses Costs and Expenses Net actuarial loss (gain) Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Receivable [Domain] Receivable [Domain] 2027 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three Diluted EPS: Earnings Per Share, Diluted [Abstract] Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Components of Special Items, Net Included in Consolidated Statements of Operations Restructuring and Related Costs [Table Text Block] Net deferred tax asset Deferred Tax Assets, Net 2029 Lessee, Operating Lease, Liability, to be Paid, Year Five Intercompany equity transfer Intercompany Equity Transfer Intercompany Equity Transfer Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Warrants Issued (shares, in thousands) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Cash and restricted cash at beginning of year Cash and restricted cash at end of year Total cash and restricted cash Total cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Average interest rate Weighted average effective interest rate on variable rate debt Debt, Weighted Average Interest Rate Other Defined Benefit Plan, Plan Assets, Increase (Decrease), Other Defined Benefit Plan, Plan Assets, Increase (Decrease), Other Fuel Financing Supplier Finance Program, Policy [Policy Text Block] Supplier Finance Program, Policy Assets, Current [Abstract] Assets, Current [Abstract] Special Facility Revenue Bonds Special Facility Revenue Bonds [Member] Special Facility Revenue Bonds [Member] Marketing Agreements Marketing-Related Intangible Assets [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Product and Service [Domain] Product and Service [Domain] Letters of credit outstanding and surety bonds, amount Letters Of Credit Outstanding And Surety Bonds, Amount Letters Of Credit Outstanding And Surety Bonds, Amount Weighted Average Grant Date Fair Value, Vested and released (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Organization Basis of Presentation and Summary of Significant Accounting Policies [Table] Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Table] Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Table] Relating to assets still held at the reporting date Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held Security Exchange Name Security Exchange Name Preferred Stock Purchase Rights Warrant [Member] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Related Party Transaction [Domain] Related Party Transaction [Domain] Defined benefit plan, assumptions used for expected long-term rate of return on plan assets, term Defined Benefit Plan, Assumptions Used For Expected Long-Term Rate of Return on Plan Assets, Actual Returns Achieved, Term Defined Benefit Plan, Assumptions Used For Expected Long-Term Rate of Return on Plan Assets, Actual Returns Achieved, Term Number of Shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Lease Contractual Term [Domain] Lease Contractual Term [Domain] Equipment purchase deposits Deposits on Flight Equipment Salaries, wages and benefits Labor and Related Expense Other assets Other Assets, Miscellaneous, Noncurrent Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Sales Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Decrease for Sale International Large Defined Benefit Plan, Equity Securities, Non-US Large [Member] Defined Benefit Plan, Equity Securities, Non-US Large Common stock, shares issued (in shares) Common Stock, Shares, Issued Retirement Plan Name [Domain] Retirement Plan Name [Domain] Entity [Domain] Entity [Domain] Percentage of employees covered by collective bargaining agreements with various labor unions Concentration Risk, Percentage Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Minimum Fixed Obligations under Capacity Purchase Agreements with Third-Party Regional Carriers Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] Regional Carrier Regional Carrier [Member] Contributions to multiemployer plan by company, percentage of total contributions to plan (more than) Multiemployer Plan, Contributions By Employer, Percentage Of Total Contributions Multiemployer Plan, Contributions By Employer, Percentage Of Total Contributions Payments on long-term debt and finance leases Redemption of outstanding principal amount Repayments of Debt and Lease Obligation Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-Term Purchase Commitment, Category of Item Purchased [Domain] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Cash Cash Estimated period of liquidation of underlying assets Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period Common stock, shares authorized (in shares) Common Stock, Shares Authorized Class of Warrant or Right [Table] Class of Warrant or Right [Table] Amount recovered to date Property, Plant, And Equipment, Amount Recovered To Date Property, Plant, And Equipment, Amount Recovered To Date 2023 Term Loan Facility and 8.50% Senior Secured Notes 2023 Term Loan Facility and 8.50% Senior Secured Notes [Member] 2023 Term Loan Facility and 8.50% Senior Secured Notes Profit sharing program, amount accrued Deferred Compensation Arrangement with Individual, Recorded Liability Components Of Income Taxes [Table] Components Of Income Taxes [Table] Components of income taxes. Operating Lease Commitments Operating Lease Commitments [Member] Operating Lease Commitments Equipment Loans and Other Notes Payable Equipment Loans and Other Notes Payable [Member] Equipment Loans and Other Notes Payable [Member] Debt Conversion, Circumstance Two Debt Conversion, Scenario Two [Member] Debt Conversion, Scenario Two Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Cash Flow Information and Non-Cash Investing and Financing Activities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Entity Voluntary Filers Entity Voluntary Filers Unrecognized net loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Interest expense, net Interest expense Interest Expense, Nonoperating Deferred income tax provision Deferred income tax provision Deferred Income Tax Expense (Benefit) Weighted average discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Sales of short-term investments Proceeds from Sale of Short-Term Investments Enhanced Equipment Trust Certificates (EETC) Enhanced Equipment Trust Certificate [Member] Total other comprehensive income (loss), net of tax Other comprehensive income (loss), net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Recurring Fair Value, Recurring [Member] Movement In Contract With Customer, Liability [Roll Forward] Movement In Contract With Customer, Liability [Roll Forward] Movement In Contract With Customer, Liability [Roll Forward] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Long-term debt, net of current maturities Net carrying amount Long-Term Debt Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Fair value of plan assets at beginning of period Fair value of plan assets at end of period Fair value of plan assets Defined Benefit Plan, Plan Assets, Amount 2030 and thereafter Long-Term Debt, Maturity, after Year Five 2013, 2014 and 2023 Credit Facilities 2013, 2014 and 2023 Credit Facilities [Member] 2013, 2014 and 2023 Credit Facilities Restricted cash included in restricted cash and short-term investments Restricted Cash, Current Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] LTV Multiplier Debt Instrument Collateral Covenant Loan To Value Ratio Multiplier Debt Instrument, Collateral Covenant, Loan-to-Value Ratio Multiplier Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Document Annual Report Document Annual Report Enhanced Equipment Trust Certificate Issued In Current Year Enhanced Equipment Trust Certificate Issued In Current Year [Member] Enhanced Equipment Trust Certificate Issued In Current Year 2027 Finance Lease, Liability, to be Paid, Year Three Number of Shares, Vested and released (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Airline Destination [Domain] Airline Destination [Domain] Indefinite lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Contract balances, liability Beginning balance Ending balance Contract with Customer, Liability SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Accounting Policies [Abstract] Accounting Policies [Abstract] Operating revenues: Revenues [Abstract] Weighted Average Grant Date Fair Value, Modified (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Modified In Period, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Modified In Period, Weighted Average Grant Date Fair Value Unamortized debt discount Debt Instrument, Unamortized Discount Leasehold Improvements Leasehold Improvements [Member] CRSU Cash Settled Restricted Stock Unit [Member] Cash Settled Restricted Stock Unit Variable interest rate Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate Current Fiscal Year End Date Current Fiscal Year End Date Balance at Beginning  of Year Balance at End of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Defined benefit plan master trust future funding commitments, period Defined Benefit Plan Master Trust Future Funding Commitments, Period Defined Benefit Plan Master Trust Future Funding Commitments, Period Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Weighted average remaining lease term: Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term [Abstract] PEO Name PEO Name Accumulated amortization Finance Lease, Right-of-Use Asset, Accumulated Amortization Fuel Financing Arrangement Fuel Financing Arrangement [Member] Fuel Financing Arrangement Award Type [Domain] Award Type [Domain] Other comprehensive income (loss) before reclassifications, tax Other Comprehensive Income (Loss) before Reclassifications, Tax Net operating loss and other carryforwards Deferred Tax Assets, Operating Loss Carryforwards And Other Carryforwards Deferred Tax Assets, Operating Loss Carryforwards And Other Carryforwards Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Airline Destination [Axis] Airline Destination [Axis] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Other operating special items, net Other Operating Special Charges, Net Other Operating Special Charges, Net Pension and postretirement benefits Noncurrent liability Liability, Defined Benefit Plan, Noncurrent Deferred tax asset Deferred Income Tax Assets, Net Non-PEO NEO Non-PEO NEO [Member] Useful life of intangible assets Finite-Lived Intangible Asset, Useful Life Other comprehensive income (loss) before reclassifications, net of tax OCI, before Reclassifications, Net of Tax, Attributable to Parent Additional Paid-in Capital Additional Paid-in Capital [Member] Noncurrent finance lease liabilities Long-term lease obligations Finance Lease, Liability, Noncurrent Employee Benefit Plans Retirement Benefits [Text Block] Number of aircraft, deferrable, scheduled to be delivered in 2024 Number Of Aircrafts, Deferrable, Scheduled To Be Delivered, Period One Number Of Aircrafts, Deferrable, Scheduled To Be Delivered, Period One Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Operating leases converted to finance leases Operating Lease Liability Converted To Finance Lease Liability Operating Lease Liability Converted To Finance Lease Liability Class of Stock [Axis] Class of Stock [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] 2028 Finance Lease, Liability, to be Paid, Year Four Accumulated amortization of intangibles Finite-Lived Intangible Assets, Accumulated Amortization Name Measure Name Entity Interactive Data Current Entity Interactive Data Current Schedule of PSP Warrants and Treasury Loan Warrants Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Number of operating segments Number of Operating Segments Government Assistance, Type [Axis] Government Assistance, Type [Axis] 2030 and thereafter Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five Income taxes paid Income Taxes Paid PSP3 Promissory Note Payroll Support Program Promissory Note Three, CARES Act [Member] Payroll Support Program Promissory Note Three, CARES Act Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Special Items, Net Restructuring and Related Activities Disclosure [Text Block] Share-based compensation, non-cash Share-Based Payment Arrangement, Noncash Expense Number of full-time equivalent employees Entity Number of Employees AOCI attributable to parent, before tax [Roll Forward] AOCI Before Tax, Attributable To Parent [Roll Forward] AOCI Before Tax, Attributable To Parent [Roll Forward] Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance 5.75% Senior Notes Senior Note 5.75% Matures 2029 [Member] Senior Note 5.75% Matures 2029 2027 Purchase Obligation, to be Paid, Year Three Pension, Retiree Medical and Other Postretirement Benefits Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Commitments and Contingencies [Table] Commitments and Contingencies [Table] Commitments and Contingencies [Table] Aircraft Type [Axis] Aircraft Type [Axis] Fixed interest rate per annum Debt Instrument, Interest Rate, Stated Percentage Schedule of Investments [Line Items] Schedule of Investments [Line Items] Supplemental information: Supplemental Cash Flow Information [Abstract] Carrying value, fair value method investments Equity Securities, FV-NI Net income for purposes of computing diluted EPS Net Income (Loss) Available to Common Stockholders, Diluted Total nonoperating expense, net Nonoperating Income (Expense) Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Auditor Firm ID Auditor Firm ID Income tax expense, effective rate Effective Income Tax Rate Reconciliation, Percent Operating income Operating Income (Loss) Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Variable Rate [Domain] Variable Rate [Domain] Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Total liabilities and stockholders’ equity (deficit) Liabilities and Equity Subsequent Event Subsequent Events [Text Block] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Collateral Coverage Tests Schedule Of Collateral Coverage Tests [Table Text Block] Schedule Of Collateral Coverage Tests [Table Text Block] 2026 Finance Lease, Liability, to be Paid, Year Two Convertible debt, conversion terms, measurement period trading price threshold percentage Convertible Debt, Conversion Terms, Measurement Period Trading Price Threshold Percentage Convertible Debt, Conversion Terms, Measurement Period Trading Price Threshold Percentage Payment term Revenue, Performance Obligation, Payment Term Revenue, Performance Obligation, Payment Term Interest income Investment Income, Interest Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Current maturities of long-term debt and finance leases Long-Term Debt and Lease Obligation, Current Restricted Stock Units (RSUs), Stock Settled Restricted Stock Units (RSUs), Stock Settled [Member] Restricted Stock Units (RSUs), Stock Settled Schedule of Maturities of Long-Term Debt and Capital Lease Obligations Schedule of Maturities of Long-Term Debt [Table Text Block] ROU assets acquired through operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Underlying Security Market Price Change Underlying Security Market Price Change, Percent Expected return on assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Individual: Individual [Axis] AAG's Wholly-owned Subsidiaries Subsidiary of Common Parent [Member] Non-proprietary improvements sold and transferred in current period Property, Plant and Equipment, Disposals Buildings and improvements Building and Building Improvements [Member] Issuance of shares of AAG common stock pursuant to employee stock plans net of shares withheld for cash taxes Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Proceeds from notes payable Proceeds from Secured Notes Payable Convertible Senior Notes 6.50% Due 2025 Convertible Senior Notes 6.50% Due 2025 [Member] Convertible Senior Notes 6.50% Due 2025 Product and Service [Axis] Product and Service [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Statement [Line Items] Statement [Line Items] Summary of Net Receivables (Payables) to Related Parties Schedule of Related Party Transactions [Table Text Block] Interest Rate Scenario [Axis] Interest Rate Scenario [Axis] Interest Rate Scenario [Axis] Benefit payments Defined Benefit Plan, Plan Assets, Benefits Paid Schedule of Estimated Useful Lives of Principal Property and Equipment Property, Plant and Equipment [Table Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Cargo Receivable Facility Cargo Receivable Facility [Member] Cargo Receivable Facility Other assets Other Assets, Noncurrent [Abstract] Less: Total unamortized debt discount, premium and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Minimum Minimum [Member] Adoption Date Trading Arrangement Adoption Date Related Party Transactions [Abstract] Related Party Transactions [Abstract] Loyalty program liability Contract with Customer, Liability, Noncurrent Aircraft fuel and related taxes Fuel Costs Other Significant Noncash Transactions [Table] Other Significant Noncash Transactions [Table] Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Total long-term debt Total Long-term debt Long-Term Debt, Gross Exercise Price Award Exercise Price Finance leases converted to operating leases Finance Lease Liability Converted To Operating Lease Liability Finance Lease Liability Converted To Operating Lease Liability Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Weighted average health care cost trend rate assumed for next year Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year Arrangement Duration Trading Arrangement Duration Gross NOL carryforwards Operating Loss Carryforwards Leases Lessee, Finance Leases [Text Block] Stockholders’ equity (deficit) Equity, Attributable to Parent [Abstract] Name of Property [Axis] Name of Property [Axis] Federal Domestic Tax Jurisdiction [Member] Total Investments Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Purchase Obligations Purchase Obligation, Fiscal Year Maturity [Abstract] Total finance lease liabilities Finance Lease, Liability Expected amortization expense in 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Four All Individuals All Individuals [Member] Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Contract receivables settlement duration Contract Receivables Settlement Duration Contract Receivables Settlement Duration Variable Rate [Axis] Variable Rate [Axis] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Other investments Other Investments Other income (expense), net Other Nonoperating Income (Expense) Retiree Medical and  Other Postretirement Benefits Other Postretirement Benefits Plan [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Intangibles, net of accumulated amortization of $841 and $834, respectively Intangible Assets, Net (Excluding Goodwill) Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items] Fixed Income Fixed Income Investments [Member] Schedule of Amounts Recognized in Other Comprehensive Income Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Capitalized software Capitalized Software [Member] Capitalized Software [Member] Schedule of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Current liability Liability, Defined Benefit Plan, Current Collective bargaining agreement, term Collective Bargaining Agreement, Term Collective Bargaining Agreement, Term Related Party [Domain] Related and Nonrelated Parties [Domain] Amount appropriated by the City of Los Angeles towards project Property, Plant, And Equipment, Amount Appropriated To Project Property, Plant, And Equipment, Amount Appropriated To Project Total noncurrent liabilities Liabilities, Noncurrent Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Additional reimbursements expected to be received Property, Plant, And Equipment, Remaining Amount Expected To Be Recovered Property, Plant, And Equipment, Remaining Amount Expected To Be Recovered LTV as of Last Measurement Date Ltv As Of Measurement Date LTV As Of measurement Date Long-term Purchase Commitment [Line Items] Long-Term Purchase Commitment [Line Items] Pension benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions Outstanding guaranteed obligation Guarantor Obligations, Current Carrying Value Schedule of Stock-Settled RSU Award and CRSU Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Federal Deferred Federal Income Tax Expense (Benefit) Expected amortization expense in 2030 and thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Reconciliation of benefit obligation: Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Measure: Measure [Axis] Asset Class [Domain] Asset Class [Domain] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] 2025 Defined Benefit Plan, Expected Future Benefit Payment, Year One Defined benefit plan master trust future funding commitments Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments Entity Emerging Growth Company Entity Emerging Growth Company Supplemental Cash Flow and Other Information Cash Flow, Lessee [Table Text Block] Cash Flow, Lessee [Table Text Block] Weighted average discount rate: Leases, Weighted Average Discount Rate [Abstract] Leases, Weighted Average Discount Rate [Abstract] Restricted cash and short-term investments Restricted Cash and Investments, Current 2029 Long-Term Debt, Maturity, Year Five Unionized Employees Concentration Risk Unionized Employees Concentration Risk [Member] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Accumulated benefit obligation Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Property and equipment, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Equity Component [Domain] Equity Component [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Entity Shell Company Entity Shell Company Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Four SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Statement [Table] Statement [Table] Total interest expense Interest Expense, Debt Measurement Frequency [Domain] Measurement Frequency [Domain] Counterparty Name [Axis] Counterparty Name [Axis] Pension and postretirement Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash Supplemental Balance Sheet Information Assets and Liabilities, Lessee [Table Text Block] Assets and Liabilities, Lessee [Table Text Block] Interest paid, net Interest Paid, Excluding Capitalized Interest, Operating Activities Financial Guarantee Financial Guarantee [Member] Supplemental contributions by employer Defined Benefit Plan, Plan Assets, Supplemental Contributions By Employer Defined Benefit Plan, Plan Assets, Supplemental Contributions By Employer Total property and equipment, at cost Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Capital expenditures and aircraft purchase deposits Payments to Acquire Productive Assets Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Level 1     Fair Value, Inputs, Level 1 [Member] Total current assets Assets, Current 7.25% Senior Secured Notes 7.25% Senior Secured Notes Due 2028 [Member] 7.25% Senior Secured Notes Due 2028 Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Senior Notes Senior Notes [Member] 5.50% Senior Notes Senior Note 5.50% Matures 2026 [Member] Senior Note 5.50% Matures 2026 2027 Long-Term Debt, Maturity, Year Three Workforce Subject to Collective-Bargaining Arrangements Workforce Subject to Collective-Bargaining Arrangements [Member] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Other facilities Short-term Revolving And Other Facilities [Member] Short-term Revolving And Other Facilities PSP3 Warrants Payroll Support Program Three Warrants, CARES Act [Member] Payroll Support Program Three Warrants, CARES Act Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Operating lease commitments that have not yet commenced Unrecorded Unconditional Purchase Obligation Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Bank notes/certificates of deposit/time deposits Bank Time Deposits [Member] Income Taxes Income Tax Disclosure [Text Block] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four Book expenses not deductible for tax purposes Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Treasury Loan Warrants Treasury Loan Warrant Agreement, CARES Act [Member] Treasury Loan Warrant Agreement, CARES Act Components Of Income Taxes [Line Items] Components Of Income Taxes [Line Items] Components of income taxes line items. Operating leases Operating Lease, Weighted Average Discount Rate, Percent Aircrafts Leased Under Capacity Purchase Agreements Aircraft Leased Under Capacity Purchase Agreements [Member] Aircraft Leased Under Capacity Purchase Agreements Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Credit Facility [Axis] Credit Facility [Axis] Interest Rate Margin Two Interest Rate Margin Two [Member] Interest Rate Margin Two Long-term debt, including current maturities Long-Term Debt, Fair Value Entity Registrant Name Entity Registrant Name Air traffic liability Air Traffic [Member] Air Traffic [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Depreciation Depreciation, Depletion and Amortization Other carryforwards Other Carryforwards Other Carryforwards State and local Deferred State and Local Income Tax Expense (Benefit) Fair Value as of Grant Date Award Grant Date Fair Value Organization Basis of Presentation and Summary of Significant Accounting Policies [Line Items] Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] Level 2     Fair Value, Inputs, Level 2 [Member] Passenger travel Passenger Travel [Member] Passenger Travel [Member] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Restructuring Cost [Table] Restructuring Cost [Table] Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Concentration Risk Type [Axis] Concentration Risk Type [Axis] Common stock, $0.01 par value; 1,750,000,000 shares authorized, 657,566,166 shares issued and outstanding at December 31, 2024; 654,273,192 shares issued and outstanding at December 31, 2023 Common Stock, Value, Issued International Association of Machinists & Aerospace Workers (IAM) National Pension Fund International Association Of Machinists And Aerospace Workers National Pension Fund [Member] International Association Of Machinists And Aerospace Workers National Pension Fund [Member] Amortization of: Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization Amounts [Abstract] Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization Amounts [Abstract] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Minimum required employer contributions, next fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Other Significant Noncash Transactions [Line Items] Other Significant Noncash Transactions [Line Items] Long-term investments Equity Securities, FV-NI, Noncurrent Other Deferred Tax Assets, Other Number of additional putative class action lawsuits Number Of Additional Putative Class Action Lawsuits Number Of Additional Putative Class Action Lawsuits Payments of required contributions Defined Benefit Plan, Plan Assets, Required Contributions by Employer Defined Benefit Plan, Plan Assets, Required Contributions by Employer Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] 2029 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Number of operated aircrafts Number of Aircraft Operated Total deferred tax liabilities Deferred Tax Liabilities, Gross Basic (in dollars per share) Basic EPS (in dollars per share) Earnings Per Share, Basic Operating cash flows from operating leases Operating Lease, Payments Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Ownership [Domain] Ownership [Domain] Property and equipment acquired through debt, finance leases and other Capital Expenditures Incurred but Not yet Paid Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Lease terms Lessee, Operating And Finance Lease, Term Of Contract Lessee, Operating And Finance Lease, Term Of Contract Operating Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Loyalty program liability Deferred Tax Assets, Frequent Flier Liability Total current liabilities Liabilities, Current Aircraft rent Aircraft Rental Expected amortization expense in 2025 Finite-Lived Intangible Asset, Expected Amortization, Year One Citi Citi [Member] Citi Long-term line of credit Long-Term Line of Credit Number of Shares, Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period U.S. government and agency obligations US Treasury and Government [Member] Summary of Assets Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Regional Expenses [Table] Regional Expenses [Table] Regional Expenses [Table] Private Equity Private Equity Funds [Member] Weighted average discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Exercise Price ($) (USD per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Convertible debt, conversion terms, percentage of sales price exceeding conversion price Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Share-based Compensation Share-Based Payment Arrangement [Text Block] Entity Address, City or Town Entity Address, City or Town Proceeds from issuance of long-term debt Proceeds from Issuance of Long-Term Debt Changes in Fair Value Measurements of Level 3 Investments Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] Leases Lessee, Leases [Policy Text Block] Annual installment repayment, percent or original principal balance Debt Instrument Annual Repayment Percent Of Principal Balance Debt Instrument, Annual Repayment, Percent of Principal Balance Ground property and equipment Ground Property and Equipment, Gross The gross amount of long-lived, depreciable ground property and equipment. Allowance for obsolescence of spare parts SEC Schedule, 12-09, Reserve, Inventory [Member] 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] Share-based compensation costs Share-Based Payment Arrangement, Expense Investments, Debt and Equity Securities [Abstract] Airport redevelopment cost incurred in current year Property, Plant & Equipment, Incurred Cost Property, Plant & Equipment, Incurred Cost Underlying Asset Class [Domain] Underlying Asset Class [Domain] Modification of share-based awards Modification of share-based awards Adjustments To Additional Paid In Capital, Modification Of Share-Based Awards Adjustments To Additional Paid In Capital, Modification Of Share-Based Awards Interest Rate Scenario [Domain] Interest Rate Scenario [Domain] Interest Rate Scenario Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Number of Shares, Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Contribution to multiemployer plan by employer, individually significant Multiemployer Plan, Pension, Significant, Employer Contribution, Cost Benefit obligations as of December 31: Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Operating property and equipment Property, Plant and Equipment, Net [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Flight equipment Flight Equipment, Gross Leases Deferred Tax Liabilities, Leasing Arrangements Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Contributions to multiemployer plan by company Multiemployer Plan, Employer Contribution, Cost Document Fiscal Year Focus Document Fiscal Year Focus Government Assistance, Type [Domain] Government Assistance, Type [Domain] Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Severance expenses Severance Costs Latin America Latin America Destination [Member] Total Assets, Fair Value Disclosure Other accrued liabilities Other Accrued Liabilities, Current Boeing 787 Boeing 787 [Member] Boeing 787 Expected amortization expense in 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Five Document Period End Date Document Period End Date 8.50% Senior Secured Notes 8.50% Senior Secured Notes Due 2029 [Member] 8.50% Senior Secured Notes Due 2029 Current finance lease liabilities Less: Current obligations Finance Lease, Liability, Current Base Rate Base Rate [Member] Total lease payments Lessee, Operating Lease, Liability, to be Paid Number of Shares, Beginning Balance (in shares) Number of Shares, Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Asset Class [Axis] Asset Class [Axis] Insider Trading Arrangements [Line Items] Increase in receivables from related parties, net Increase (Decrease) in Due from Related Parties Increase in other assets Increase (Decrease) in Other Current Assets 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Debt instrument, special interest rate Debt Instrument, Special Interest Rate Debt Instrument, Special Interest Rate Recognition of revenue Recognition of revenue Contract with Customer, Liability, Revenue Recognized Decrease in restricted short-term investments Increase (Decrease) of Restricted Investments Prepaid expenses and other Prepaid Expense and Other Assets, Current Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Document Transition Report Document Transition Report Credit Facility 2014 Credit Facility 2014 [Member] Credit Facility 2014 [Member] Debt instrument, minimum collateral coverage ratio Debt Instrument, Covenant Terms, Minimum Collateral Coverage Ratio Debt Instrument, Covenant Terms, Minimum Collateral Coverage Ratio Total Purchase Obligation PSP1 Promissory Note Payroll Support Program Promissory Note One, CARES Act [Member] Payroll Support Program Promissory Note One, CARES Act Deferred Bonus and Profit Sharing Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Deferred Bonus and Profit Sharing Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Current Reporting Status Entity Current Reporting Status Retained Deficit Retained Earnings [Member] Operating lease commitments that have not yet commenced, number of aircraft Lessee, Operating Lease, Lease Not yet Commenced, Number Of Leased Aircraft Lessee, Operating Lease, Lease Not yet Commenced, Number Of Leased Aircraft AAdvantage Term Loan Facility AAdvantage Term Loan Facility [Member] AAdvantage Term Loan Facility 2023 Incentive Award Plan 2023 Incentive Award Plan [Member] 2023 Incentive Award Plan Non-cash amortization of debt discount Amortization of Debt Issuance Costs Regional expenses Capacity purchases from third-party regional carriers Airline, Capacity Purchase Arrangements Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Lessee [Abstract] Cash Flow, Lessee [Abstract] Interest rate adjustment Debt Instrument, Basis Spread On Variable Rate, Interest Rate Adjustment Debt Instrument, Basis Spread On Variable Rate, Interest Rate Adjustment Restricted stock unit awards Restricted Stock Units (RSUs) [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Executive Category: Executive Category [Axis] Credit Facility 2013 Credit Facility 2013 [Member] Credit Facility 2013 [Member] Term of agreement Revenue Component, Term Of Agreement Revenue Component, Term Of Agreement Components of Income Tax Provision Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Settlement of single-dip unsecured claims held in Disputed Claims Reserve Adjustments To Additional Paid In Capital Settlement Of Single Dip Unsecured Claims And Retirement Of Common Stock Adjustments To Additional Paid In Capital Settlement Of Single Dip Unsecured Claims And Retirement Of Common Stock Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets and Funded Status Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block] Amounts reclassified from AOCI, net of tax Total reclassifications for the period, net of tax Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Number of days within the occurrence of triggering event Debt Instrument, Prepayment Trigger, Number Of Days Within The Occurrence Of Triggering Event Debt Instrument, Prepayment Trigger, Number Of Days Within The Occurrence Of Triggering Event Assumed conversion of 6.50% convertible senior notes (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Letter of Credit Letter of Credit [Member] Company Selected Measure Name Company Selected Measure Name