v3.25.4
Revenue Recognition - Revenue by Geographic Region (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of Revenue [Line Items]      
Operating revenue $ 63,364 $ 61,643 $ 58,048
Domestic      
Disaggregation of Revenue [Line Items]      
Operating revenue 44,655 43,508 40,845
Atlantic      
Disaggregation of Revenue [Line Items]      
Operating revenue 10,766 10,535 10,458
Latin America      
Disaggregation of Revenue [Line Items]      
Operating revenue 4,579 4,564 4,292
Pacific      
Disaggregation of Revenue [Line Items]      
Operating revenue 3,364 3,036 2,453
Passenger      
Disaggregation of Revenue [Line Items]      
Operating revenue 51,768 50,894 48,909
Passenger | Domestic      
Disaggregation of Revenue [Line Items]      
Operating revenue 35,731 35,226 33,968
Passenger | Atlantic      
Disaggregation of Revenue [Line Items]      
Operating revenue 9,270 9,133 9,057
Passenger | Latin America      
Disaggregation of Revenue [Line Items]      
Operating revenue 3,980 3,995 3,798
Passenger | Pacific      
Disaggregation of Revenue [Line Items]      
Operating revenue $ 2,787 $ 2,540 $ 2,086