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Deferred Revenue - Changes in Deferred Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Change in Contract with Customer, Liability [Roll Forward]        
Balance, beginning of the period $ 421 $ 468 $ 430 $ 498
Deferral of revenue 122 111 211 194
Recognition of deferred revenue from beginning balance (133) (130) (231) (243)
Balance, end of the period $ 410 $ 449 $ 410 $ 449