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Leases - Maturities of Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]    
2022 $ 27  
2023 25  
2024 19  
2025 12  
2026 9  
Thereafter 14  
Total lease payments 106  
Less: imputed interest 9  
Present value of lease liabilities 97  
Less: current maturities 24 $ 22
Long-term lease obligations 73 81
Finance Lease, Liability, Payment, Due [Abstract]    
2022 11  
2023 11  
2024 11  
2025 10  
2026 10  
Thereafter 104  
Total lease payments 157  
Less: imputed interest 44  
Present value of lease liabilities 113  
Less: current maturities 6 5
Long-term lease obligations $ 107 $ 109