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Operating Leases - Maturities of Operating Leases (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due    
2022 $ 145  
2023 121  
2024 96  
2025 67  
2026 58  
Thereafter 102  
Total lease payments 589  
Less: Imputed interest (65)  
Total operating lease liabilities $ 524 $ 605