v3.25.2
Investments - Allowance for credit losses on fixed maturities (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Allowance for Credit Losses [Roll Forward]        
Beginning balance $ 41 $ 11 $ 34 $ 12
Provision for expected credit losses on securities with no previous allowance 1 0 3 1
Reductions to previously recognized expected credit losses (1) 0 4 1
Reductions due to sales or redemptions (26) (1) (26) (4)
Ending balance 15 10 15 10
Structured securities        
Allowance for Credit Losses [Roll Forward]        
Beginning balance 11 11 11 9
Provision for expected credit losses on securities with no previous allowance 0 0 0 1
Reductions to previously recognized expected credit losses (1) 0 (1) 1
Reductions due to sales or redemptions 0 (1) 0 (1)
Ending balance 10 10 10 10
Corporate and other        
Allowance for Credit Losses [Roll Forward]        
Beginning balance 30 0 23 3
Provision for expected credit losses on securities with no previous allowance 1 0 3 0
Reductions to previously recognized expected credit losses 0 0 5 0
Reductions due to sales or redemptions (26) 0 (26) (3)
Ending balance $ 5 $ 0 $ 5 $ 0