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Schedule II Valuation and Qualifying Accounts (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
AR Amounts (credited) charged to other income statement accounts $ 0 $ 0 $ 0
Tax Valuation Allowances and Reserves Beginning Balance 82 83 72
Tax Valuation Allowances and Reserves, Period Increase (Decrease) 34 10 17
Tax Valuation Allowances and Reserves, Deductions (14) (11) (6)
Tax Valuation Allowances and Reserves Ending Balance 102 82 83
Accounts Receivable [Member]      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
AR Valuation and Qualifying Accounts Beginning Balance 0 2 2
AR Additions charged to bad debt provision 0 1 1
AR Amounts (credited) charged to other income statement accounts 0 0 0
AR Deductions and other, net of recoveries 0 (3) (1)
AR Valuation and Qualifying Accounts Ending Balance $ 0 $ 0 $ 2