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Debt (Schedule of Debt Maturities) (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Long-term Debt, Fiscal Year Maturity [Abstract]    
2022 $ 2  
2023 6  
2024 5  
2025 395  
2026 5  
Thereafter 4,704  
Total debt $ 5,117 $ 5,440