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Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash and cash equivalents [abstract]        
Cash and bank accounts $ 330 $ 363    
Fixed-income securities and other cash equivalents 534 261    
Consolidated cash and cash equivalents $ 864 $ 624 $ 495 $ 613