v3.26.3
Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Total passenger revenue $ 16,335 $ 13,691 $ 46,982 $ 40,634
American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 16,334 13,688 46,979 40,628
Passenger        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 14,900 12,471 42,609 36,985
Passenger | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 14,900 12,471 42,609 36,985
Passenger | Domestic        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 10,489 8,723 30,205 26,010
Passenger | Domestic | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 10,489 8,723 30,205 26,010
Passenger | Latin America        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 1,618 1,340 5,307 4,795
Passenger | Latin America | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 1,618 1,340 5,307 4,795
Passenger | Atlantic        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 2,438 2,109 5,893 5,160
Passenger | Atlantic | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 2,438 2,109 5,893 5,160
Passenger | Pacific        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 355 299 1,204 1,020
Passenger | Pacific | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue $ 355 $ 299 $ 1,204 $ 1,020