Inactive period before expiration of mileage credits Inactive Period Before Expiration Of Mileage Credits Inactive Period Before Expiration Of Mileage Credits Statistical Measurement [Domain] Statistical Measurement [Domain] Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Interest Rate Margin Three Interest Rate Margin Three [Member] Interest Rate Margin Three Cover [Abstract] Airline Destination [Table] Airline Destination [Table] Net increase in cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Ownership interest, fair value method investments Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Republic Airways Holdings Inc. Republic Airline Inc [Member] Republic Airline Inc [Member] Trading Symbol Trading Symbol Ownership interest, equity method investments Ownership percentage Equity Method Investment, Ownership Percentage All Trading Arrangements All Trading Arrangements [Member] Loyalty revenue - marketing services Loyalty Program, Marketing Services [Member] Loyalty Program, Marketing Services [Member] Long-term debt and finance leases, net of current maturities Long-Term Debt and Lease Obligation Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Non-NEOs Non-NEOs [Member] Schedule of Basic and Diluted Earnings (Loss) per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] 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] 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 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Fair Value Measurements Fair Value Disclosures [Text Block] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Award Timing Disclosures [Line Items] Operating special items, net Restructuring And Other, Net Restructuring And Other, Net Investment, Name [Domain] Investment, Name [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Legal Proceedings Legal Matters and Contingencies [Text Block] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Receivables from related parties, net Total Other Receivables, Net, Current Operating lease liabilities Operating Lease, Liability, Noncurrent Other Product and Service, Other [Member] Term Loan Initial Term Loan [Member] Initial Term Loan Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Deferred revenue, current Contract with Customer, Liability, Current Service cost Defined Benefit Plan, Service Cost PSP2 Warrants Payroll Support Program Two Warrants, CARES Act [Member] Payroll Support Program Two Warrants, CARES Act Total other assets Total other assets Other Assets, Noncurrent Entity Tax Identification Number Entity Tax Identification Number Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] 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 Money market funds Money Market Funds [Member] Interest expense on 6.50% convertible senior notes Interest on Convertible Debt, Net of Tax Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Secured Debt Secured Debt [Member] Other Other Cost and Expense, Operating Loyalty program liability Loyalty Program [Member] Loyalty Program [Member] Equity Components [Axis] Equity Components [Axis] Repurchase agreements Repurchase Agreements [Member] 10.75% Senior Secured Notes, LGA/DCA Notes 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) 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 Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Insider Trading Policies and Procedures [Line Items] Total operating expenses Costs and Expenses Amounts reclassified from AOCI 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 Diluted EPS: Earnings Per Share, Diluted [Abstract] Non-cash transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] 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 Schedule of Special Items, Net in Condensed Consolidated Statements of Operations Restructuring and Related Costs [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Intercompany equity transfer Intercompany Equity Transfer Intercompany Equity Transfer Level 3 Fair Value, Inputs, Level 3 [Member] Airline Destination Disclosure [Line Items] Airline Destination Disclosure [Line Items] 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 (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Credit Facility [Domain] Credit Facility [Domain] Cash and restricted cash at beginning of period Cash and restricted cash at end of period Total cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Average interest rate Debt, Weighted Average Interest Rate Current assets Assets, Current [Abstract] Atlantic Atlantic Destination [Member] Goodwill Goodwill Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Special Facility Revenue Bonds Special Facility Revenue Bonds [Member] Special Facility Revenue Bonds [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Entity Information [Line Items] Entity Information [Line Items] Product and Service [Domain] Product and Service [Domain] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Other financing activities Proceeds from (Payments for) Other Financing Activities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Pension Benefits Pension Plan [Member] Security Exchange Name Security Exchange Name Preferred Stock Purchase Rights Warrant [Member] Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Award Type Award Type [Axis] Corporate obligations Corporate Debt Securities [Member] Basic EPS: Earnings Per Share, Basic [Abstract] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Equipment purchase deposits Deposits on Flight Equipment Salaries, wages and benefits Labor and Related Expense Tax AOCI Tax, Attributable to Parent [Roll Forward] AOCI Tax, Attributable to Parent [Roll Forward] Convertible Note Convertible Debt [Member] Other assets Other Assets, Miscellaneous, Noncurrent Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Revolving Credit Facility Revolving Credit Facility [Member] Expiration Date Trading Arrangement Expiration Date Property and equipment acquired through debt, finance leases and other Right-of-Use Asset Obtained in Exchange for Finance Lease Liability 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] Operating lease liabilities Operating Lease, Liability, Current Total Shareholder Return Amount Total Shareholder Return Amount Common stock, shares issued (in shares) Common Stock, Shares, Issued Convertible debt, threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Entity [Domain] Entity [Domain] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Line of credit facility, aggregate commitments Line of Credit Facility, Maximum Borrowing Capacity Regional operating special items, net Regional Carrier [Member] Payments on long-term debt and finance leases Repayments of Debt and Lease Obligation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Other Revolving Facility Other Revolving Facility [Member] Other Revolving Facility Cash Cash Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Class of Warrant or Right [Table] Class of Warrant or Right [Table] 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] Amortization of: Defined Benefit Plan, Amortization [Abstract] Defined Benefit Plan, Amortization [Abstract] Equipment Loans and Other Notes Payable Equipment Loans and Other Notes Payable [Member] Equipment Loans and Other Notes Payable [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net of tax AOCI Attributable to Parent, Net of Tax [Roll Forward] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Total stockholders’ deficit Beginning balance Ending balance Equity, Attributable to Parent Total Related Party [Member] Unrecognized net loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Litigation Case [Axis] Litigation Case [Axis] Collective-Bargaining Arrangement [Domain] Collective-Bargaining Arrangement [Domain] Interest expense, net Interest Expense, Nonoperating Equipment Loans and Other Notes Payable Issued in Current Year Equipment Loans and Other Notes Payable Issued in Current Year [Member] Equipment Loans and Other Notes Payable Issued in Current Year New Accounting Pronouncements or Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Sales of short-term investments Proceeds from Sale of Short-Term Investments Enhanced Equipment Trust Certificates (EETC) Enhanced Equipment Trust Certificate [Member] 10.75% Senior Secured Notes, IP Notes 10.75% Senior Secured Notes, IP Notes [Member] 10.75% Senior Secured Notes, IP Notes Total other comprehensive income, net of tax Other comprehensive income, 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 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 Long-Term Debt Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Document Fiscal Period Focus Document Fiscal Period Focus Loyalty revenue - travel Loyalty Program, Travel Redemptions [Member] Loyalty Program, Travel Redemptions [Member] All Executive Categories All Executive Categories [Member] 2013, 2014 and 2023 Credit Facilities 2013, 2014 and 2023 Credit Facilities [Member] 2013, 2014 and 2023 Credit Facilities Dilutive effect of stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Equity Securities Equity Securities [Member] Unrealized Loss on Investments AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets [Abstract] Retirement Plan Type [Domain] Retirement Plan Type [Domain] 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 Restricted cash included in restricted cash and short-term investments Restricted Cash, Current Document Type Document Type Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] PSP1 Warrants Payroll Support Program One Warrants, CARES Act [Member] Payroll Support Program One Warrants, CARES Act Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Airline Destination [Domain] Airline Destination [Domain] Schedule of Contract Liabilities 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 SOFR Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] AAG Parent Company [Member] Maximum Maximum [Member] Airline Expenses [Abstract] Airline Expenses [Abstract] Total Beginning balance Ending balance Contract with Customer, Liability Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Accounts payable AAG’s wholly-owned subsidiaries Accounts Payable, Current Operating revenues: Revenues [Abstract] American Airlines, Inc. American Airlines, Inc. [Member] American Airlines, Inc. Collective-Bargaining Arrangement [Axis] Collective-Bargaining Arrangement [Axis] Variable interest rate Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate Maintenance, materials and repairs Aircraft Maintenance, Materials, and Repairs Current Fiscal Year End Date Current Fiscal Year End Date Statistical Measurement [Axis] Statistical Measurement [Axis] PEO Name PEO Name 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 All Award Types Award Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Name Outstanding Recovery, Individual Name Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss) before Reclassifications, Tax Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Issuance of shares of AAG common stock pursuant to employee stock plans (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Airline Destinations [Axis] Airline Destination [Axis] 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] 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 Liability, Defined Benefit Plan, Noncurrent Deferred tax asset Deferred Income Tax Assets, Net Non-PEO NEO Non-PEO NEO [Member] Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Additional Paid-in Capital Additional Paid-in Capital [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Restricted short-term investments Restricted Short-Term Investments, Noncurrent Restricted Short-Term Investments, Noncurrent Subsequent Event Type [Domain] Subsequent Event Type [Domain] Employee Benefit Plans Retirement Benefits [Text Block] Investment, Name [Axis] Investment, Name [Axis] Prior service cost (benefit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Forecast Forecast [Member] Diluted (in dollars per share) Diluted EPS (in dollars per share) Earnings Per Share, Diluted Class of Stock [Axis] Class of Stock [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Accumulated amortization of intangibles Finite-Lived Intangible Assets, Accumulated Amortization Name Measure Name State State and Local Jurisdiction [Member] Entity Interactive Data Current Entity Interactive Data Current Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Ownership [Axis] Ownership [Axis] Schedule of PSP Warrants and Treasury Loan Warrants Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Government Assistance, Type [Axis] Government Assistance, Type [Axis] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Income taxes paid Income Taxes Paid New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] 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 Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Special Items, Net Restructuring and Related Activities Disclosure [Text Block] Before tax AOCI Before Tax, Attributable To Parent [Roll Forward] AOCI Before Tax, Attributable To Parent [Roll Forward] Number of mainline flight attendants Entity Number of Employees 5.75% Senior Notes Senior Note 5.75% Matures 2029 [Member] Senior Note 5.75% Matures 2029 Selling expenses Selling and Marketing Expense Pension, Retiree Medical and Other Postretirement Benefits Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] 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 Interest rate Debt Instrument, Interest Rate, Stated Percentage Short-term investments Debt Securities, Available-for-Sale, Current 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 operating revenues Total passenger revenue Revenue from Contract with Customer, Excluding Assessed Tax Total nonoperating expense, net Nonoperating other income (expense), net Nonoperating Income (Expense) Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] 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 used in investing activities Net Cash Provided by (Used in) Investing Activities Operating income Operating Income (Loss) Income Tax Authority [Axis] Income Tax Jurisdiction [Axis] Variable Rate [Domain] Variable Rate [Domain] Total liabilities and stockholders’ equity (deficit) Liabilities and Equity Passenger Passenger [Member] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Accrued salaries and wages Employee-related Liabilities, Current Aircraft fuel, spare parts and supplies, net Airline Related Inventory, Net Pacific Pacific Destination [Member] 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] Revenue recognition term Revenue, Performance Obligation, Payment Term Revenue, Performance Obligation, Payment Term Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Interest income Investment Income, Interest Legal Entity [Axis] Legal Entity [Axis] Current maturities of long-term debt and finance leases Long-Term Debt and Lease Obligation, Current Right-of-use (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 Scenario [Domain] Scenario [Domain] Individual: Individual [Axis] AAG's wholly-owned subsidiaries Subsidiary of Common Parent [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] 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] Proceeds from secured notes payable Proceeds from Secured Notes Payable Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Product and Service [Axis] Product and Service [Axis] Entity Address, State or Province Entity Address, State or Province Collective bargaining agreement, expected one-time payment Collective Bargaining Agreement, Expected One-Time Payment, Amount Collective Bargaining Agreement, Expected One-Time Payment, Amount Statement [Line Items] Statement [Line Items] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule 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] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Cargo Receivable Facility Cargo Receivable Facility [Member] Cargo Receivable Facility LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT) Liabilities and Equity [Abstract] Other assets Other Assets, Noncurrent [Abstract] Schedule of Net Periodic Benefit Cost (Income) Schedule of Net Benefit Costs [Table Text Block] Less: Total unamortized debt discount, premium and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Minimum Minimum [Member] Restatement Determination Date Restatement Determination Date Fair Value Estimate of Fair Value Measurement [Member] Adoption Date Trading Arrangement Adoption Date Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Loyalty program liability Contract with Customer, Liability, Noncurrent Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Aircraft fuel and related taxes Fuel Costs 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. 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] 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 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 Total long-term debt Long-Term Debt, Gross Exercise Price Award Exercise Price Prior service cost Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] 3.75% Senior Notes Senior Notes 3.75% Due 2025 [Member] Senior Notes 3.75% Due 2025 [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] Arrangement Duration Trading Arrangement Duration Subsequent Event Subsequent Event [Member] NOL carryforwards Operating Loss Carryforwards Operating expenses: Costs and Expenses [Abstract] Stockholder’s equity Equity, Attributable to Parent [Abstract] Federal Domestic Tax Jurisdiction [Member] Total Investments Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Net current-period other comprehensive income (loss) Other Comprehensive Income (Loss), Tax Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] All Individuals All Individuals [Member] Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] PEO PEO [Member] Variable Rate [Axis] Variable Rate [Axis] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Entities [Table] Entities [Table] Name Trading Arrangement, Individual Name 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 $837 and $834, respectively Intangibles, net of accumulated amortization of $837 and $834, respectively Intangible Assets, Net (Excluding Goodwill) Labor contract expenses Other Labor-related Expenses Regional Expenses [Line Items] Regional Expenses [Line Items] Regional Expenses [Line Items] Schedule of Revolving Credit and Other Facilities Schedule of Line of Credit Facilities [Table Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] 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] Related Party [Domain] Related and Nonrelated Parties [Domain] Total noncurrent liabilities Liabilities, Noncurrent Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Long-term Purchase Commitment [Line Items] Long-Term Purchase Commitment [Line Items] Local Phone Number Local Phone Number Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] 6.50% Senior Notes Senior Notes 6.50% Due 2025 [Member] Senior Notes 6.50% Due 2025 Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Noncurrent liabilities Liabilities, Noncurrent [Abstract] SOFR Secured Overnight Financing Rate (SOFR) [Member] PEO Total Compensation Amount PEO Total Compensation Amount Net current-period other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Debt Disclosure [Abstract] Debt Disclosure [Abstract] Common Stock, $0.01 par value per share Common Stock Common Stock [Member] Measure: Measure [Axis] Asset Class [Domain] Asset Class [Domain] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Entity Emerging Growth Company Entity Emerging Growth Company 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 Restricted cash and short-term investments Restricted Cash and Investments, Current Entity Central Index Key Entity Central Index Key Scenario [Axis] Scenario [Axis] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 2023 Revolving Facility Credit Facility 2023 [Member] Credit Facility 2023 2023 Term Loan Facility 2023 Term Loan Facility [Member] 2023 Term Loan Facility Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Equity Component [Domain] Equity Component [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Less: Current maturities Long-Term Debt, Current Maturities AAG Other Receivables, Gross, Current Actuarial loss Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Entity Shell Company Entity Shell Company Measurement Basis [Axis] Measurement Basis [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Title Trading Arrangement, Individual Title Unsecured Debt Unsecured Debt [Member] Statement [Table] Statement [Table] Counterparty Name [Axis] Counterparty Name [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] City Area Code City Area Code Current liabilities Liabilities, Current [Abstract] Other rent and landing fees Landing Fees and Other Rentals Minimum liquidity Line Of Credit Facility, Covenant Terms, Minimum Aggregate Liquidity Required Line Of Credit Facility, Covenant Terms, Minimum Aggregate Liquidity Required Interest paid, net Interest Paid, Excluding Capitalized Interest, Operating Activities Total property and equipment, at cost Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization 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 Capital expenditures and aircraft purchase deposits Payments to Acquire Productive Assets Level 1 Fair Value, Inputs, Level 1 [Member] Mainline operating special items, net Mainline [Member] Total current assets Total current assets Assets, Current 7.25% Senior 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 Total Line of credit facility, available 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] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Defined benefit plan, contributed amount 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] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Bank notes/certificates of deposit/time deposits Bank Time Deposits [Member] Investments Investment [Text Block] Income Taxes Income Tax Disclosure [Text Block] Earnings per common share: Earnings Per Share [Abstract] Equity [Abstract] Equity [Abstract] Retained deficit Retained Earnings (Accumulated Deficit) Schedule of Reclassifications out of Accumulated Other Comprehensive Loss 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] Treasury Loan Warrants Treasury Loan Warrant Agreement, CARES Act [Member] Treasury Loan Warrant Agreement, CARES Act Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Mark-to-market adjustments on equity investments, net Equity Securities, FV-NI, Unrealized Gain (Loss) Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Contract term Revenue, Performance Obligation, Term Revenue, Performance Obligation, Term Underlying Securities Award Underlying Securities Amount Credit Facility [Axis] Credit Facility [Axis] Interest Rate Margin Two Interest Rate Margin Two [Member] Interest Rate Margin Two Amendment Flag Amendment Flag Carrying Value Reported Value Measurement [Member] Long-term debt, fair value 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] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Other carryforwards Other Carryforwards Other Carryforwards Dilutive effect of certain PSP Warrants and Treasury Loan Warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Fair Value as of Grant Date Award Grant Date Fair Value Level 2 Fair Value, Inputs, Level 2 [Member] Debt Debt Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Passenger travel Passenger Travel [Member] Passenger Travel [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Schedule of Revenue Disaggregation of Revenue [Table Text Block] 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 Entity Address, Postal Zip Code Entity Address, Postal Zip Code Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Long-term Purchase Commitment [Table] Long-Term Purchase Commitment [Table] Common stock, $0.01 par value; 1,750,000,000 shares authorized, 656,607,802 shares issued and outstanding at June 30, 2024; 654,273,192 shares issued and outstanding at December 31, 2023 Common stock, $1.00 par value; 1,000 shares authorized, issued and outstanding Common Stock, Value, Issued Beginning balance, tax Ending balance, tax AOCI Tax, Attributable to Parent Schedule of Equity Investments [Table] Schedule of Investments [Table] Other investing activities Payments for (Proceeds from) Other Investing Activities Long-term investments Equity Securities, FV-NI, Noncurrent 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] Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Tax Convertible debt, threshold trading days Debt Instrument, Convertible, Threshold Trading Days Number of additional putative class action lawsuits Number Of Additional Putative Class Action Lawsuits Number Of Additional Putative Class Action Lawsuits Debt refinancing and extinguishment Debt Refinancing, Debt Extinguishment And Other Expense Debt Refinancing, Debt Extinguishment And Other Expense Schedule of Equity Investment Ownership Interests and Carrying Values Investment [Table Text Block] Beginning balance, before tax Ending balance, before tax AOCI before Tax, Attributable to Parent Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] 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] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Fair Value Measurement [Domain] Fair Value Measurement [Domain] Basic (in dollars per share) Basic EPS (in dollars per share) Earnings Per Share, Basic Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] 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 Ownership [Domain] Ownership [Domain] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 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] Total current liabilities Liabilities, Current 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 Aircraft rent Aircraft Rental Amount drawn Long-Term Line of Credit Schedule of Assets Measured at Fair Value on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] 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 Regional Expenses Regional Operating Expenses [Text Block] Regional Operating Expenses [Text Block] Domestic Domestic Destination [Member] Regional Expenses [Table] Regional Expenses [Table] Regional Expenses [Table] Termination Date Trading Arrangement Termination Date Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Exercise price of warrants (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights 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] Conversion terms, percentage sales price exceeds conversion price Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Entity Address, City or Town Entity Address, City or Town Proceeds from issuance of long-term debt Proceeds from Issuance of Long-Term Debt Ground property and equipment Ground Property and Equipment, Gross The gross amount of long-lived, depreciable ground property and equipment. Debt Instrument [Axis] Debt Instrument [Axis] 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] Net income Net income Net income (loss) Total reclassifications for the period, net of tax Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Investments, Debt and Equity Securities [Abstract] 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 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 [Domain] Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] 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 Entity File Number Entity File Number Revenue Recognition Revenue from Contract with Customer [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Republic Airways Holdings, Inc. Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] Revenue from External Customers by Products and Services [Table] Segment Reporting, Revenue from External Customer, Product and Service [Table] Government Assistance, Type [Domain] Government Assistance, Type [Domain] Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Latin America Latin America Destination [Member] Severance expenses Severance Costs Total Assets, Fair Value Disclosure Other accrued liabilities Other Accrued Liabilities, Current Name Forgone Recovery, Individual Name Document Period End Date Document Period End Date 8.50% Senior Notes 8.50% Senior Secured Notes Due 2029 [Member] 8.50% Senior Secured Notes Due 2029 Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Base Rate Base Rate [Member] Asset Class [Axis] Asset Class [Axis] Insider Trading Arrangements [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Recognition of revenue Recognition of revenue Contract with Customer, Liability, Revenue Recognized Decrease in restricted short-term investments Increase (Decrease) of Restricted Investments Term Loan Term Loan [Member] Term Loan Adjustment to Compensation: Adjustment to Compensation [Axis] Prepaid expenses and other Prepaid Expense and Other Assets, Current Document Transition Report Document Transition Report 2014 Revolving Facility Credit Facility 2014 [Member] Credit Facility 2014 [Member] Document Quarterly Report Document Quarterly Report Payroll Support Program Promissory Note One, CARES Act Payroll Support Program Promissory Note One, CARES Act [Member] Payroll Support Program Promissory Note One, CARES Act 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 Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Accumulated other comprehensive loss Beginning balance, net of tax Ending balance, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Current Reporting Status Entity Current Reporting Status Retained Deficit Retained Earnings [Member] AAdvantage Term Loan Facility AAdvantage Term Loan Facility [Member] AAdvantage Term Loan Facility Pension Adjustments Service Cost Pension Adjustments Service Cost [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 Related Party [Axis] Related and Nonrelated Parties [Axis] Basic (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] Regional expenses Airline, Capacity Purchase Arrangements Document Information [Table] Document Information [Table] 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] 2013 Revolving Facility Credit Facility 2013 [Member] Credit Facility 2013 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 Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 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 Other revenue Other Revenue [Member] Other Revenue [Member]