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Liability For Unpaid Claims And Claim Adjustment Expenses - Narrative (Details) - USD ($)
$ in Millions
5 Months Ended 7 Months Ended 12 Months Ended
May 24, 2022
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]          
Prior year incurred claims $ (21) $ (31) $ (31) $ (46) $ (81)