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Schedule V - Valuation and Qualifying Accounts (Details) - SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount $ 105 $ 66 $ 74 $ 63
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense 53 12 11  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired 0 0 0  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction $ (14) $ (20) $ 0