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Revenue - Summary of Information About Trade Receivables, Contract Assets, and Deferred Revenue (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue [abstract]      
Trade receivables (note 16) $ 698 $ 651  
Contract assets 798 650 $ 459
Deferred revenue $ (2,169) $ (2,060) $ (1,848)