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Income and Expenses - Summary of Other Operating Income (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Material income and expense [abstract]      
Government grant income $ 8 $ 18 $ 0
Others 4 15 14
Other income $ 12 $ 33 $ 14