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Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | $ 12,551 | $ 12,570
American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 12,549 | 12,569
Passenger |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 11,391 | 11,458
Passenger | American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 11,391 | 11,458
Passenger | Domestic |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 8,127 | 8,262
Passenger | Domestic | American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 8,127 | 8,262
Passenger | Latin America |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 1,906 | 1,902
Passenger | Latin America | American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 1,906 | 1,902
Passenger | Atlantic |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 965 | 992
Passenger | Atlantic | American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 965 | 992
Passenger | Pacific |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | 393 | 302
Passenger | Pacific | American Airlines, Inc. |  |
Airline Destination Disclosure [Line Items] |  |
Total passenger revenue | $ 393 | $ 302

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