v3.26.1
Investments (Amortized Cost and Fair Value of Fixed Maturity Holdings by Industry Type) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Corporate Securities by Investment Sector And Credit Rating [Line Items]    
Amortized Cost $ 116,308 $ 107,264
Fixed maturity securities, available-for-sale 109,270 [1] 101,769 [2]
Corporate Debt Securities [Member]    
Corporate Securities by Investment Sector And Credit Rating [Line Items]    
Amortized Cost 80,654 72,736
Fixed maturity securities, available-for-sale $ 76,827 [1] $ 69,737 [2]
Percentage Of Total Corporate Fixed Maturity Security 100.00% 100.00%
Corporate Debt Securities [Member] | Finance    
Corporate Securities by Investment Sector And Credit Rating [Line Items]    
Amortized Cost $ 24,069 $ 21,367
Fixed maturity securities, available-for-sale $ 22,887 $ 20,489
Percentage Of Total Corporate Fixed Maturity Security 29.80% 29.40%
Corporate Debt Securities [Member] | Industrial    
Corporate Securities by Investment Sector And Credit Rating [Line Items]    
Amortized Cost $ 43,075 $ 39,381
Fixed maturity securities, available-for-sale $ 41,145 $ 37,839
Percentage Of Total Corporate Fixed Maturity Security 53.60% 54.30%
Corporate Debt Securities [Member] | Utility    
Corporate Securities by Investment Sector And Credit Rating [Line Items]    
Amortized Cost $ 13,510 $ 11,988
Fixed maturity securities, available-for-sale $ 12,795 $ 11,409
Percentage Of Total Corporate Fixed Maturity Security 16.60% 16.30%
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of June 30, 2026, the fair value of such investments was $875 million.
[2] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2025, the fair value of such investments was $925 million