v3.25.2
Investments - Allowance for Credit Losses (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]          
Accrued interest receivables on available-for-sale fixed maturity securities $ 451 $ 444 $ 451 $ 444 $ 442
Allowance for credit losses:          
Beginning balance 47 20 45 16  
Securities for which credit losses were not previously recorded 3   3    
Securities disposed during the period (realized) 6 4 6 4  
Intent to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis       1  
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period 7 1 9 6  
Ending balance 51 17 51 17  
Corporate bonds and other          
Allowance for credit losses:          
Beginning balance 15 3 13 4  
Securities for which credit losses were not previously recorded 3   3    
Securities disposed during the period (realized) 6 3 6 3  
Intent to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis       1  
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period 2 4  
Ending balance 14 0 14 0  
Asset-backed          
Allowance for credit losses:          
Beginning balance 32 17 32 12  
Securities for which credit losses were not previously recorded      
Securities disposed during the period (realized) 1 1  
Intent to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis        
Additional increases to the allowance for credit losses on securities that had an allowance recorded in a previous period 5 1 5 6  
Ending balance $ 37 $ 17 $ 37 $ 17