v3.25.4
REVENUE RECOGNITION - Other Revenue (Narrative) (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
Product And Service, Other, MRO Business      
Disaggregation of Revenue [Line Items]      
Operating revenue $ 822 $ 658