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Leases - Schedule of Future Undiscounted Cash Outflows for Operating Leases (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Lessee Disclosure [Abstract]    
2022 $ 305  
2023 251  
2024 186  
2025 124  
2026 67  
Thereafter 61  
Total lease payments 994  
Less: Interest 40  
Total present value of lease liabilities $ 954 $ 938