v3.25.4
Separate Account Assets and Liabilities - Separate account assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value $ 95,585 $ 93,888
Equity funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 58,504 58,540
Bond funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 8,771 8,510
Balanced funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 26,677 25,156
Money market funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 1,633 1,682
Group Retirement    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 40,701 39,672
Group Retirement | Equity funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 30,683 30,097
Group Retirement | Bond funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 3,160 3,070
Group Retirement | Balanced funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 6,055 5,666
Group Retirement | Money market funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 803 839
Life Insurance    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 1,149 1,059
Life Insurance | Equity funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 1,027 945
Life Insurance | Bond funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 48 46
Life Insurance | Balanced funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 59 53
Life Insurance | Money market funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 15 15
Institutional Markets    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 4,957 4,339
Institutional Markets | Equity funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 721 676
Institutional Markets | Bond funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 1,398 1,302
Institutional Markets | Balanced funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 2,660 2,207
Institutional Markets | Money market funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 178 154
Corporate & Other    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 48,778 48,818
Corporate & Other | Equity funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 26,073 26,822
Corporate & Other | Bond funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 4,165 4,092
Corporate & Other | Balanced funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value 17,903 17,230
Corporate & Other | Money market funds    
Fair Value, Separate Account Investment [Line Items]    
Separate account assets, at fair value $ 637 $ 674