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Debt - Components of Long-Term Debt (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |
Total long-term debt | $ 32,175 | $ 32,759
Less: Total unamortized debt discount, premium and issuance costs | 348 | 363
Less: Current maturities | 3,974 | 3,501
Long-term debt, net of current maturities | 27,853 | 28,895
American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Less: Total unamortized debt discount, premium and issuance costs | 336 | 349
Less: Current maturities | 3,488 | 3,501
Long-term debt, net of current maturities | 23,118 | 23,676
Secured Debt |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 26,942 | 27,526
Secured Debt | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 26,942 | 27,526
Secured Debt | 2013 Revolving Facility |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 990 | 990
Variable interest rate | 8.60% |
Secured Debt | 2013 Revolving Facility | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 990 | 990
Variable interest rate | 8.60% |
Secured Debt | 2014 Revolving Facility |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,171 | 1,183
Variable interest rate | 7.07% |
Secured Debt | 2014 Revolving Facility | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,171 | 1,183
Variable interest rate | 7.07% |
Secured Debt | 2023 Revolving Facility |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,100 | 1,100
Variable interest rate | 8.77% |
Secured Debt | 2023 Revolving Facility | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,100 | 1,100
Variable interest rate | 8.77% |
Secured Debt | 10.75% Senior Secured Notes, IP Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,000 | 1,000
Interest rate | 10.75% |
Secured Debt | 10.75% Senior Secured Notes, IP Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,000 | 1,000
Interest rate | 10.75% |
Secured Debt | 10.75% Senior Secured Notes, LGA/DCA Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 200 | 200
Interest rate | 10.75% |
Secured Debt | 10.75% Senior Secured Notes, LGA/DCA Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 200 | 200
Interest rate | 10.75% |
Secured Debt | 7.25% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 750 | 750
Interest rate | 7.25% |
Secured Debt | 7.25% Senior Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 750 | 750
Interest rate | 7.25% |
Secured Debt | 8.50% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,000 | 1,000
Interest rate | 8.50% |
Secured Debt | 8.50% Senior Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,000 | 1,000
Interest rate | 8.50% |
Secured Debt | 5.50% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 2,625 | 2,917
Interest rate | 5.50% |
Secured Debt | 5.50% Senior Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 2,625 | 2,917
Interest rate | 5.50% |
Secured Debt | 5.75% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 3,000 | 3,000
Interest rate | 5.75% |
Secured Debt | 5.75% Senior Notes | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 3,000 | 3,000
Interest rate | 5.75% |
Secured Debt | AAdvantage Term Loan Facility |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 2,975 | 3,150
Variable interest rate | 10.33% |
Secured Debt | AAdvantage Term Loan Facility | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 2,975 | 3,150
Variable interest rate | 10.33% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 7,418 | 7,657
Average interest rate | 3.58% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 7,418 | 7,657
Average interest rate | 3.58% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.88% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Minimum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.88% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.90% |
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Maximum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.90% |
Secured Debt | Equipment Loans and Other Notes Payable |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 3,746 | 3,612
Average interest rate | 6.93% |
Secured Debt | Equipment Loans and Other Notes Payable | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 3,746 | 3,612
Average interest rate | 6.93% |
Secured Debt | Equipment Loans and Other Notes Payable | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.55% |
Secured Debt | Equipment Loans and Other Notes Payable | Minimum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.55% |
Secured Debt | Equipment Loans and Other Notes Payable | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate | 8.85% |
Secured Debt | Equipment Loans and Other Notes Payable | Maximum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 8.85% |
Secured Debt | Special Facility Revenue Bonds |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 967 | 967
Secured Debt | Special Facility Revenue Bonds | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 967 | 967
Secured Debt | Special Facility Revenue Bonds | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.25% |
Secured Debt | Special Facility Revenue Bonds | Minimum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.25% |
Secured Debt | Special Facility Revenue Bonds | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.38% |
Secured Debt | Special Facility Revenue Bonds | Maximum | American Airlines, Inc. |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.38% |
Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 5,233 | 5,233
Unsecured Debt | Payroll Support Program Promissory Note One, CARES Act |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 1,757 | 1,757
Unsecured Debt | Payroll Support Program Promissory Note Two, CARES Act |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 1,030 | 1,030
Unsecured Debt | Payroll Support Program Promissory Note Three, CARES Act |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 959 | 959
Unsecured Debt | 6.50% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 1,000 | 1,000
Interest rate | 6.50% |
Unsecured Debt | 3.75% Senior Notes |  |
Debt Instrument [Line Items] |  |
Total long-term debt | $ 487 | $ 487
Interest rate | 3.75% |

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