Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Weighted average shares outstanding (in thousands): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Federal Income Tax Jurisdiction, Domestic Federal [Member] Title of 12(b) Security Title of 12(b) Security Carrying Value Reported Value Measurement [Member] Net income (loss) for purposes of computing diluted EPS Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Decrease (increase) in restricted short-term investments Increase (Decrease) of Restricted Investments Average interest rate Debt, Weighted Average Interest Rate Adjustment to Compensation, Amount Adjustment to Compensation Amount Aircraft rent Airline, Aircraft Rent Expense Financial Instrument [Axis] Financial Instrument [Axis] Special Facility Revenue Bonds Special Facility Revenue Bonds [Member] Special Facility Revenue Bonds [Member] Schedule of Assets Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Common stock, $0.01 par value; 1,750,000,000 shares authorized, 662,618,434 shares issued and outstanding at September 30, 2026; 660,301,080 shares issued and outstanding at December 31, 2025 Common stock, $1.00 par value; 1,000 shares authorized, issued and outstanding Common Stock, Value, Issued Revenue from External Customers by Products and Services [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table] Accrued salaries and wages Employee-related Liabilities, Current 2025-1 Aircraft EETC Equipment Notes Schedule of Long-Term Debt Instruments [Table Text Block] Other assets Other Assets, Miscellaneous, Noncurrent Regional expenses Airline, Capacity Purchase Arrangement Expense Employee Benefit Plans Retirement Benefits [Text Block] Line of Credit Line of Credit [Member] Passenger Passenger [Member] Restatement Determination Date Restatement Determination Date Expected return on assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss) before Reclassifications, Tax Aircraft fuel, spare parts and supplies, net Airline Related Inventory, Net Amendment Flag Amendment Flag Current liabilities Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Class of Warrant or Right [Table] Class of Warrant or Right [Table] 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 Investments Investment [Text Block] Other Revolving Facility Other Revolving Facility [Member] Other Revolving Facility Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Number of aircrafts financed Airline, Aircraft Operated, Number Total noncurrent liabilities Liabilities, Noncurrent Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Amounts reclassified from AOCI Reclassification out of Accumulated Other Comprehensive Income [Member] Noncurrent liabilities Liabilities, Noncurrent [Abstract] Intangibles, net of accumulated amortization of $855 and $848, respectively Intangibles, net of accumulated amortization of $855 and $848, respectively Intangible Asset, Excluding Goodwill, after Accumulated Amortization Basic (in shares) Weighted average common shares outstanding (in thousands), basic (in shares) Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Retirement Benefits [Abstract] Retirement Benefits [Abstract] Schedule of Net Receivables (Payables) to Related Parties Schedule of Related Party Transactions [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Total current liabilities Liabilities, Current Enhanced Equipment Trust Certificates (EETC) Enhanced Equipment Trust Certificate [Member] Equipment Loans and Other Notes Payable Equipment Loans and Other Notes Payable [Member] Equipment Loans and Other Notes Payable [Member] Entity Address, City or Town Entity Address, City or Town Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Loyalty revenue - marketing services Loyalty Program, Marketing Services [Member] Loyalty Program, Marketing Services [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Document Information [Line Items] Document Information [Line Items] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Level 2 Fair Value, Inputs, Level 2 [Member] Accumulated amortization of intangibles Intangible Asset, Finite-Lived, Accumulated Amortization Nonoperating income (expense): Nonoperating Income (Expense) [Abstract] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Line of credit facility, aggregate commitments Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Less: Current maturities Long-Term Debt, Current Maturities AAG Parent Company [Member] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] 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 Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Debt refinancing and extinguishment Debt Refinancing, Debt Extinguishment And Other Expense, Net Debt Refinancing, Debt Extinguishment And Other Expense, Net 2026-2 Aircraft EETCs, Series B 2026-2 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B [Member] 2026-2 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B Related Party [Axis] Related and Nonrelated Parties [Axis] Unsecured Debt Unsecured Debt [Member] Total other comprehensive income, net of tax Other comprehensive income, net Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Long-term debt, net of current maturities Long-Term Debt Exercise price of warrants (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Non-cash transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Aggregate principal issued Debt Instrument, Face Amount Basic EPS: Earnings Per Share, Basic [Abstract] Operating expenses: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") [Member] 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") Finance leases converted to operating leases Other Significant Noncash Transaction, Finance Lease Conversion To Operating Lease Other Significant Noncash Transaction, Finance Lease Conversion To Operating Lease Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Impairment of equity investments Equity Method Investment, Other-than-Temporary Impairment Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Air traffic liability Air Traffic [Member] Air Traffic [Member] Operating lease liabilities Operating Lease, Liability, Current 2013 Revolving Facility Credit Facility 2013 [Member] Credit Facility 2013 Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Repurchase agreements Repurchase Agreements [Member] Earnings (Loss) Per Common Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Earnings (loss) per common share: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Trading Symbol Trading Symbol Republic Airways Holdings, Inc. Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] 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] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Mainline operating special items, net Restructuring And Other, Net Restructuring And Other, Net Company Selected Measure Name Company Selected Measure Name Litigation reserve adjustments Gain (Loss) from Litigation Settlement Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Schedule of Equity Investments [Table] Schedule of Investments [Table] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Amounts reclassified from AOCI Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Diluted EPS: Earnings Per Share, Diluted [Abstract] Pension, Retiree Medical and Other Postretirement Benefits Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Long-term debt Long-Term Debt, Gross 2014 Revolving Facility Credit Facility 2014 [Member] Credit Facility 2014 [Member] Passenger travel Passenger Travel [Member] Passenger Travel [Member] Ownership interest, fair value method investments Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage Asset Class [Domain] Asset Class [Domain] Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Related Party Transactions [Abstract] Related Party Transactions [Abstract] Receivables from related parties, net Total Other Receivables, Net, Current Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Before tax AOCI Before Tax, Attributable To Parent [Roll Forward] AOCI Before Tax, Attributable To Parent [Roll Forward] Diluted (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Preferred Stock Purchase Rights Warrant [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Pension and postretirement benefits Liability, Defined Benefit Plan, Noncurrent Underlying Security Market Price Change Underlying Security Market Price Change, Percent Total property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization NOL carryforwards Operating Loss Carryforwards Entities [Table] Entities [Table] Short-term debt Short-Term Debt Defined benefit plan, contributed amount Defined Benefit Plan, Plan Assets, Contributions by Employer Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Less accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Award Timing Predetermined Award Timing Predetermined [Flag] Restricted cash included in restricted cash and short-term investments Restricted Cash, Current Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] 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 Dilutive effect of certain PSP Warrants and Treasury Loan Warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Dilutive effect of restricted stock unit awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements 2026-1 Aircraft EEETCs, Series B 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B [Member] 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B All Executive Categories All Executive Categories [Member] Labor contract expenses Other Labor-related Expenses Number of additional putative class action lawsuits Number Of Additional Putative Class Action Lawsuits Number Of Additional Putative Class Action Lawsuits Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Long-term debt, fair value Long-term debt, including current maturities Long-Term Debt, Fair Value Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Schedule of Net Periodic Benefit Cost (Income) Schedule of Net Benefit Costs [Table Text Block] 2025-1 Aircraft EETCs, Series B 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B [Member] 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series B Amortization of: Defined Benefit Plan, Amortization [Abstract] Defined Benefit Plan, Amortization [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Tax AOCI Tax, Attributable to Parent [Roll Forward] AOCI Tax, Attributable to Parent [Roll Forward] Regional Expenses [Line Items] Regional Expenses [Line Items] Regional Expenses [Line Items] Intercompany equity transfer Intercompany Equity Transfer Intercompany Equity Transfer Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Selling expenses Selling and Marketing Expense 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") [Member] 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") Payroll Support Program Promissory Note Three, CARES Act Payroll Support Program Promissory Note Three, CARES Act [Member] Payroll Support Program Promissory Note Three, CARES Act Schedule of Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] 2026-1 Aircraft EEETCs, Series A 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series A [Member] 2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series A Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Current maturities of long-term debt and finance leases Long-Term Debt and Lease Obligation, Current Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Schedule of Revenue Disaggregation of Revenue [Table Text Block] 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 2025-1 Aircraft EETCs, Series A 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series A [Member] 2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs"), Series A Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Credit Facility 2014 - Term Loans Credit Facility 2014 - Term Loans [Member] Credit Facility 2014 - Term Loans 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] Net periodic benefit cost (income) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Long-Term And Short-Term Debt, Type [Axis] Long-Term And Short-Term Debt, Type [Axis] Long-Term And Short-Term Debt, Type Operating leases converted to finance leases Other Significant Noncash Transaction, Operating Lease Conversion To Finance Lease Other Significant Noncash Transaction, Operating Lease Conversion To Finance Lease Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Common stock, shares authorized (in shares) Common Stock, Shares Authorized AAdvantage Term Loan Facility, Fourth Amendment AAdvantage Term Loan Facility, Fourth Amendment [Member] AAdvantage Term Loan Facility, Fourth Amendment Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Flight equipment Airline, Property, Plant, and Equipment, Flight Equipment, before Accumulated Depreciation 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] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Republic Airline Inc Republic Airline Inc [Member] Republic Airline Inc [Member] China Southern Airlines China Southern Airlines Company Limited [Member] China Southern Airlines [Member] Long-term investments Long Term Investments, Fair Value Disclosure Long Term Investments, Fair Value Disclosure Document Quarterly Report Document Quarterly Report 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] Debt Debt Disclosure [Text Block] Repayments of long-term debt Repayments of Long-Term Debt Less: Total unamortized debt discount, premium and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Schedule of Special Items, Net in Condensed Consolidated Statements of Operations Restructuring and Related Costs [Table Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Carrying value, equity method investments Equity Method Investments Payroll Support Program Promissory Note Two, CARES Act Payroll Support Program Promissory Note Two, CARES Act [Member] Payroll Support Program Promissory Note Two, CARES Act Equity Component [Domain] Equity Component [Domain] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Government Assistance, Type [Axis] Government Assistance, Type [Axis] Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Loyalty revenue - travel Loyalty Program, Travel Redemptions [Member] Loyalty Program, Travel Redemptions [Member] Counterparty Name [Domain] Counterparty Name [Domain] Fixed interest rate per annum Debt Instrument, Interest Rate, Stated Percentage Total stockholders' equity (deficit) Beginning balance Ending balance Equity, Attributable to Parent Total nonoperating expense, net Nonoperating other income (expense), net Nonoperating Income (Expense) ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other investments Other Investments Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Insider Trading Policies and Procedures [Line Items] Other financing activities Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Loyalty program liability Loyalty Program [Member] Loyalty Program [Member] Schedule of Revolving Credit and Other Facilities Schedule of Line of Credit Facilities [Table Text Block] Prepaid expenses and other Prepaid Expense and Other Assets, Current Letter of Credit Letter of Credit [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Sales of short-term investments Proceeds from Sale of Short-Term Investments Restricted stock unit awards Restricted Stock Units (RSUs) [Member] Schedule of Anti-Dilutive Securities Excluded From Calculation of Diluted EPS Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Fuel financing Short-Term Bank Loans and Notes Payable Entity Central Index Key Entity Central Index Key Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Floor interest rate Debt Instrument, Basis Spread On Variable Rate, Floor Interest Rate Debt Instrument, Basis Spread On Variable Rate, Floor Interest Rate Senior short-term term loan facility Senior Unsecured Short Term Loan Facility [Member] Senior Unsecured Short Term Loan Facility Equity [Abstract] Equity [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] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Legal Proceedings Legal Matters and Contingencies [Text Block] 6.50% Senior Notes Senior Notes 6.50% Due 2025 [Member] Senior Notes 6.50% Due 2025 Stockholder’s equity Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Ownership [Axis] Ownership [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Investment, Name [Axis] Investment, Name [Axis] Cargo Receivable Facility Cargo Receivable Facility [Member] Cargo Receivable Facility Regional Expenses Regional Operating Expenses [Text Block] Regional Operating Expenses [Text Block] Deferred tax asset Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Other carryforwards Other Carryforwards Other Carryforwards 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. City Area Code City Area Code Variable Rate [Domain] Variable Rate [Domain] Prior service cost Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Total property and equipment, at cost Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Latin America Latin America Destination [Member] Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] 6.50% convertible senior notes Convertible Debt Securities [Member] Other revenue Other Revenue [Member] Other Revenue [Member] Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Entity [Domain] Entity [Domain] Prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Pension, retiree medical and other postretirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Interest expense, net Interest Expense, Nonoperating AAG's wholly-owned subsidiaries Subsidiary of Common Parent [Member] Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent PEO PEO [Member] Total Debt, Long-Term and Short-Term, Combined Amount Mainline operating special items, net Mainline [Member] Number of aircraft delivered or to be delivered Debt Instrument, Number Of Aircraft Delivered Or To Be Delivered Debt Instrument, Number Of Aircraft Delivered Or To Be Delivered Measurement Basis [Axis] Measurement Basis [Axis] Other liabilities Other Liabilities, Noncurrent Other facilities Short-term Revolving And Other Facilities [Member] Short-term Revolving 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Gain (Loss) Attributable to Parent [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Corporate obligations Corporate Debt Securities [Member] Diluted (in dollars per share) Diluted EPS (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount 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 Other assets Other Assets, Noncurrent [Abstract] Litigation Case [Domain] Litigation Case [Domain] Ownership [Domain] Ownership [Domain] Amount drawn Proceeds from Long-Term Lines of Credit Equipment purchase deposits Deposits on Flight Equipment Long-term Purchase Commitment [Line Items] Long-Term Purchase Commitment [Line Items] Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Tax Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Total operating revenues Total passenger revenue Revenue from Contract with Customer, Excluding Assessed Tax Total Line of credit facility, available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Interest cost Defined Benefit Plan, Interest Cost Remaining escrowed proceeds Noncash Or Part Noncash Transaction, Held In Escrow Noncash Or Part Noncash Transaction, Held In Escrow PSP2 Warrants Payroll Support Program Two Warrants, CARES Act [Member] Payroll Support Program Two Warrants, CARES Act Schedule of Equity Investment Ownership Interests and Carrying Values Investment [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Other rent and landing fees Airline, Landing Fee and Other Rent Expenses 2023 Revolving Facility Credit Facility 2023 [Member] Credit Facility 2023 Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Purchases of short-term investments Payments to Acquire Short-Term Investments Fair Value Estimate of Fair Value Measurement [Member] Revenue Recognition Revenue from Contract with Customer [Text Block] Payments on long-term debt and finance leases Repayments of Debt and Lease Obligation Domestic Domestic Destination [Member] Cash Cash State Income Tax Jurisdiction, Domestic State and Local [Member] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Other investing activities Payment for (Proceeds from) Other Investing Activity Maintenance, materials and repairs Airline, Maintenance and Repair Expenses Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] American Airlines, Inc. American Airlines, Inc. [Member] American Airlines, Inc. Other nonoperating special items, net Other Nonoperating Special Items, Net Other Nonoperating Special Items, Net Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Settlement of warrants Adjustments To Additional Paid In Capital, Warrant Settlement Adjustments To Additional Paid In Capital, Warrant Settlement Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date 7.25% Senior Notes 7.25% Senior Secured Notes Due 2028 [Member] 7.25% Senior Secured Notes Due 2028 Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Airline Destination [Domain] Airline Destination [Domain] 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] Beginning balance, before tax Ending balance, before tax AOCI before Tax, Attributable to Parent Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Equity Securities Equity Securities [Member] Debt instrument, basis spread on variable rate, interest rate margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line 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2026 Engine Enhanced Equipment Trust Certificate ("EETCs") Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and stockholders’ equity (deficit) Liabilities and Equity Expirations in the period (in shares) Class Of Warrant Or Right, Expired In The Period Class Of Warrant Or Right, Expired In The Period Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Related Party [Domain] Related and Nonrelated Parties [Domain] Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Revenue recognition term (in months) Revenue, 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Fuel Costs Net of tax AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income (loss) Net income (loss) Net (loss) income Total reclassifications for the period, net of tax Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] 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 Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] 2019-1 Engine Enhanced Equipment Trust Certificate 2019-1 Engine Enhanced Equipment Trust Certificate [Member] 2019-1 Engine Enhanced Equipment Trust Certificate Interest income Investment Income, Interest 2026 Incremental Term Loans Credit Facility 2014 - 2026 Incremental Term Loans [Member] Credit Facility 2014 - 2026 Incremental Term Loans Schedule of Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Airline, Expense [Abstract] Airline, Expense [Abstract] Operating revenues: Revenues [Abstract] Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]