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Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Property and Equipment [Line Items]    
Property and equipment, gross $ 1,591 $ 1,292
Less: Accumulated depreciation (825) (632)
Property and equipment, net 766 660
Computer equipment    
Property and Equipment [Line Items]    
Property and equipment, gross 1,226 974
Computer software    
Property and Equipment [Line Items]    
Property and equipment, gross 77 72
Leasehold and other improvements    
Property and Equipment [Line Items]    
Property and equipment, gross 200 168
Furniture and fixtures    
Property and Equipment [Line Items]    
Property and equipment, gross 74 69
Construction in progress    
Property and Equipment [Line Items]    
Property and equipment, gross $ 14 $ 9