v3.26.1
Investments (Fixed Maturity Securities by Sector) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost $ 86,653 $ 87,046    
Fixed maturity securities, allowance for credit losses 64 64 $ 67 $ 81
Fixed maturity securities, gross unrealized gains 578 963    
Fixed maturity securities, gross unrealized losses 6,344 5,931    
Fixed maturity securities, at estimated fair value 80,823 82,014    
U.S. corporate        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 41,313 41,590    
Fixed maturity securities, allowance for credit losses 32 27 26 47
Fixed maturity securities, gross unrealized gains 261 443    
Fixed maturity securities, gross unrealized losses 3,334 3,097    
Fixed maturity securities, at estimated fair value 38,208 38,909    
Foreign corporate        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 12,049 12,380    
Fixed maturity securities, allowance for credit losses 17 31 35 26
Fixed maturity securities, gross unrealized gains 76 145    
Fixed maturity securities, gross unrealized losses 1,065 997    
Fixed maturity securities, at estimated fair value 11,043 11,497    
RMBS        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 9,491 9,029    
Fixed maturity securities, allowance for credit losses 3 3 3 4
Fixed maturity securities, gross unrealized gains 64 85    
Fixed maturity securities, gross unrealized losses 623 579    
Fixed maturity securities, at estimated fair value 8,929 8,532    
U.S. government and agency        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 7,536 7,216    
Fixed maturity securities, allowance for credit losses 0 0    
Fixed maturity securities, gross unrealized gains 46 105    
Fixed maturity securities, gross unrealized losses 655 610    
Fixed maturity securities, at estimated fair value 6,927 6,711    
ABS        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 5,858 6,081    
Fixed maturity securities, allowance for credit losses 10 0 0 0
Fixed maturity securities, gross unrealized gains 14 33    
Fixed maturity securities, gross unrealized losses 54 55    
Fixed maturity securities, at estimated fair value 5,808 6,059    
CMBS        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 6,032 6,086    
Fixed maturity securities, allowance for credit losses 2 3 $ 3 $ 4
Fixed maturity securities, gross unrealized gains 5 13    
Fixed maturity securities, gross unrealized losses 237 226    
Fixed maturity securities, at estimated fair value 5,798 5,870    
State and political subdivision        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 3,488 3,691    
Fixed maturity securities, allowance for credit losses 0 0    
Fixed maturity securities, gross unrealized gains 86 103    
Fixed maturity securities, gross unrealized losses 302 300    
Fixed maturity securities, at estimated fair value 3,272 3,494    
Foreign government        
Debt Securities, Available-for-sale [Line Items]        
Fixed maturity securities, amortized cost 886 973    
Fixed maturity securities, allowance for credit losses 0 0    
Fixed maturity securities, gross unrealized gains 26 36    
Fixed maturity securities, gross unrealized losses 74 67    
Fixed maturity securities, at estimated fair value $ 838 $ 942