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Regulatory Matters, Commitments, Contingencies and Environmental (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Regulatory Matters, Commitments, Contingencies And Environmental Liabilities [Abstract]    
Accrued Environmental Loss Contingencies, Noncurrent $ 1 $ 1
Estimated litigation liability 107 73
Other Commitments [Line Items]    
Accrued Environmental Loss Contingencies, Noncurrent 1 $ 1
Contingent Residual Support Agreement, Amount $ 1,000