v3.26.1
Investments - Rollforward of changes in allowance for credit losses on available for sale fixed maturity securities by major investment category (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance, beginning of period $ 130 $ 119
Additions:    
Securities for which allowance for credit losses were not previously recorded 41 40
Reductions:    
Securities sold during the period (4) (2)
Additional net increases or decreases to the allowance for credit losses on securities that had an allowance recorded in a previous period, for which there was no intent to sell before recovery, amortized cost basis 15 (12)
Write-offs charged against the allowance (14) (31)
Balance, end of period 168 114
Structured    
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance, beginning of period 36 33
Additions:    
Securities for which allowance for credit losses were not previously recorded 7 0
Reductions:    
Securities sold during the period (3) 0
Additional net increases or decreases to the allowance for credit losses on securities that had an allowance recorded in a previous period, for which there was no intent to sell before recovery, amortized cost basis (1) 1
Write-offs charged against the allowance 0 (3)
Balance, end of period 39 31
Non-Structured    
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]    
Balance, beginning of period 94 86
Additions:    
Securities for which allowance for credit losses were not previously recorded 34 40
Reductions:    
Securities sold during the period (1) (2)
Additional net increases or decreases to the allowance for credit losses on securities that had an allowance recorded in a previous period, for which there was no intent to sell before recovery, amortized cost basis 16 (13)
Write-offs charged against the allowance (14) (28)
Balance, end of period $ 129 $ 83