v3.26.3
Investments (Exposure To Concentrations Of Credit Risk) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Available for Sale at Fair value - Amortized cost $ 121,126 $ 107,264
Fixed maturity securities, available-for-sale 107,757 [1] 101,769 [2]
JAPAN    
Debt Securities, Available-for-sale [Line Items]    
Available for Sale at Fair value - Amortized cost 9,230 6,516
Fixed maturity securities, available-for-sale 6,642 4,701
US Treasury and Government [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available for Sale at Fair value - Amortized cost 2,545 3,508
Fixed maturity securities, available-for-sale 2,204 [1] 3,287 [2]
Canadian Province Of Quebec Securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available for Sale at Fair value - Amortized cost 1,538 1,642
Fixed maturity securities, available-for-sale 1,555 1,764
Korean Government    
Debt Securities, Available-for-sale [Line Items]    
Available for Sale at Fair value - Amortized cost 1,521 1,407
Fixed maturity securities, available-for-sale $ 1,197 $ 1,312
[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 September 30, 2026, the fair value of such investments was $926 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