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Income and Expenses - Summary of Expenses by Nature (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Expenses by nature [abstract]      
Staff costs $ 1,019 $ 639 $ 600
Operation costs 462 425 545
Depreciation and amortization 345 387 647
Marketing expenses 177 65 111
Professional fees $ 82 $ 56 $ 60