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Leases - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Lessee Lease Description [Line Items]      
Sublease Income $ 2    
Operating lease weighted average remaining term 3 years    
Finance lease weighted average remaining term 7 years    
Operating lease weighted-average discount rates 5.90%    
Finance lease weighted-average discount rates 5.10%    
Impairment of operating right-of-use assets $ 2    
Total future lease commitments 36    
Series of Individually Immaterial Business Acquisitions [Member]      
Lessee Lease Description [Line Items]      
Rental expense 2 $ 2 $ 2
Total future lease commitments $ 2    
Operating leases, expiry year 2023