v3.26.1
Derivative Financial Instruments - Schedule of Change in Fair Value of Derivative Instruments (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative        
Recognized gains (losses), net for derivatives $ 410 $ 83 $ 410 $ (141)
Recognized gains (losses), net for hedged item $ 0 $ 2 $ 1 $ 3
Derivative, Gain (Loss), Statement of Income or Comprehensive Income Flag Benefits and other changes in policy reserves Benefits and other changes in policy reserves Benefits and other changes in policy reserves Benefits and other changes in policy reserves
Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives $ 475 $ 196 $ 204 $ 143
Recognized gains (losses), net for hedged item 15 (3) 26 (13)
Derivatives designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 0 (2) (1) (3)
Recognized gains (losses), net for hedged item 0 2 1 3
Derivatives designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives (17) 3 (28) 12
Recognized gains (losses), net for hedged item 15 (3) 26 (13)
Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 410 85 411 (138)
Recognized gains (losses), net for hedged item 0 0 0 0
Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 492 193 232 131
Recognized gains (losses), net for hedged item 0 0 0 0
Interest rate swaps | Derivatives designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Interest rate swaps | Derivatives designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives (17) 3 (28) 12
Recognized gains (losses), net for hedged item 15 (3) 26 (13)
Interest rate swaps | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives (32) 19 (61) 69
Recognized gains (losses), net for hedged item 0 0 0 0
Interest rate swaps | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Foreign currency swaps | Derivatives designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 0 (2) (1) (3)
Recognized gains (losses), net for hedged item 0 2 1 3
Foreign currency swaps | Derivatives designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Foreign currency swaps | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 1 (4) 13 (4)
Recognized gains (losses), net for hedged item 0 0 0 0
Foreign currency swaps | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Equity options | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 527 126 280 (108)
Recognized gains (losses), net for hedged item 0 0 0 0
Equity options | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Futures contracts | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives (8) 9 (5) 14
Recognized gains (losses), net for hedged item 0 0 0 0
Futures contracts | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Foreign currency forwards | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 1 (8) 3 (11)
Recognized gains (losses), net for hedged item 0 0 0 0
Foreign currency forwards | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Other embedded derivatives | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 4 4 3 4
Recognized gains (losses), net for hedged item 0 0 0 0
Other embedded derivatives | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Indexed annuities/IUL embedded derivatives | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item 0 0 0 0
Indexed annuities/IUL embedded derivatives | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 492 193 232 131
Recognized gains (losses), net for hedged item 0 0 0 0
Reinsurance related embedded derivatives | Derivatives not designated as hedging instruments        
Derivative        
Recognized gains (losses), net for derivatives (83) (61) 178 (102)
Recognized gains (losses), net for hedged item 0 0 0 0
Reinsurance related embedded derivatives | Derivatives not designated as hedging instruments | Fair Value Hedging        
Derivative        
Recognized gains (losses), net for derivatives 0 0 0 0
Recognized gains (losses), net for hedged item $ 0 $ 0 $ 0 $ 0