v3.26.1
Revenue Recognition - Passenger Revenue by Geographic Region (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total passenger revenue $ 16,735 $ 14,392 $ 30,647 $ 26,943
American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 16,734 14,390 30,645 26,940
Passenger        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 15,214 13,123 27,709 24,514
Passenger | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 15,214 13,123 27,709 24,514
Passenger | Domestic        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 10,726 9,159 19,716 17,286
Passenger | Domestic | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 10,726 9,159 19,716 17,286
Passenger | Latin America        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 1,726 1,550 3,689 3,455
Passenger | Latin America | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 1,726 1,550 3,689 3,455
Passenger | Atlantic        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 2,353 2,086 3,455 3,052
Passenger | Atlantic | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 2,353 2,086 3,455 3,052
Passenger | Pacific        
Disaggregation of Revenue [Line Items]        
Total passenger revenue 409 328 849 721
Passenger | Pacific | American Airlines, Inc.        
Disaggregation of Revenue [Line Items]        
Total passenger revenue $ 409 $ 328 $ 849 $ 721