v3.26.1
Revenue Recognition Revenue Recognition (Contract Liabilities Rollforward) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenue Recognition and Deferred Revenue [Abstract]    
Contract liabilities, Beginning Balance $ 469 $ 459
Additions 93 110
Revenue recognized (83) (82)
Contract liabilities, Ending Balance $ 479 $ 487