v3.26.3
Market Risk Benefits - Rollforward of market risk benefits (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Market Risk Benefit [Roll Forward]        
Balance, beginning of year $ 5,813 $ 4,344    
Effect of changes in our own credit risk (710) (1,261) $ (1,390) $ (880)
Balance, beginning of year, before effect of changes in our own credit risk 4,423 3,464    
Issuances 665 658    
Interest accrual 207 151    
Attributed fees 587 601    
Expected claims (52) (51)    
Effect of changes in interest rates (1,392) 123    
Effect of changes in interest rate volatility 53 (72)    
Effect of changes in equity markets (569) (777)    
Effect of changes in equity index volatility (25) 24    
Actual outcome different from model expected outcome 52 157    
Effect of changes in future expected policyholder behavior (134) 67    
Effect of changes in other future expected assumptions 519 (25)    
Other, including foreign exchange 0 2    
Balance, end of period 4,334 4,322    
Effect of changes in our own credit risk 710 1,261 1,390 880
Balance, end of period 5,044 5,583    
Less: Reinsured MRB, end of period (169) (1,028)    
Net 4,875 4,555    
Combined        
Net amount at risk        
Net amount at risk 361 403    
GMDB only        
Net amount at risk        
Net amount at risk 576 444    
GMWB only        
Net amount at risk        
Net amount at risk 467 695    
Individual Retirement        
Market Risk Benefit [Roll Forward]        
Balance, beginning of year 5,118 3,757    
Effect of changes in our own credit risk (243) (464) (556) (224)
Balance, beginning of year, before effect of changes in our own credit risk 4,562 3,533    
Issuances 628 620    
Interest accrual 208 146    
Attributed fees 0 0    
Expected claims 0 0    
Effect of changes in interest rates (942) 6    
Effect of changes in interest rate volatility (2) 18    
Effect of changes in equity markets (46) (23)    
Effect of changes in equity index volatility 1 0    
Actual outcome different from model expected outcome (93) 42    
Effect of changes in future expected policyholder behavior (141) 76    
Effect of changes in other future expected assumptions 604 16    
Other, including foreign exchange 0 0    
Balance, end of period 4,779 4,434    
Effect of changes in our own credit risk 243 464 556 224
Balance, end of period 5,022 4,898    
Less: Reinsured MRB, end of period 0 0    
Net $ 5,022 $ 4,898    
Net amount at risk        
Average attained age of contract holders 68 years 68 years    
Individual Retirement | Combined        
Net amount at risk        
Net amount at risk $ 44 $ 58    
Individual Retirement | GMDB only        
Net amount at risk        
Net amount at risk 0 0    
Individual Retirement | GMWB only        
Net amount at risk        
Net amount at risk 423 641    
Group Retirement        
Market Risk Benefit [Roll Forward]        
Balance, beginning of year 346 278    
Effect of changes in our own credit risk (60) (95) (105) (69)
Balance, beginning of year, before effect of changes in our own credit risk 241 209    
Issuances 32 31    
Interest accrual 15 11    
Attributed fees 42 44    
Expected claims (1) (1)    
Effect of changes in interest rates (90) 5    
Effect of changes in interest rate volatility 2 (3)    
Effect of changes in equity markets (35) (30)    
Effect of changes in equity index volatility 7 4    
Actual outcome different from model expected outcome (3) (28)    
Effect of changes in future expected policyholder behavior 7 (9)    
Effect of changes in other future expected assumptions (11) 3    
Other, including foreign exchange 0 2    
Balance, end of period 206 238    
Effect of changes in our own credit risk 60 95 105 69
Balance, end of period 266 333    
Less: Reinsured MRB, end of period 0 0    
Net $ 266 $ 333    
Net amount at risk        
Average attained age of contract holders 64 years 64 years    
Group Retirement | Combined        
Net amount at risk        
Net amount at risk $ 11 $ 12    
Group Retirement | GMDB only        
Net amount at risk        
Net amount at risk 85 98    
Group Retirement | GMWB only        
Net amount at risk        
Net amount at risk 44 54    
Corporate & Other        
Market Risk Benefit [Roll Forward]        
Balance, beginning of year 349 309    
Effect of changes in our own credit risk (407) (702) (729) (587)
Balance, beginning of year, before effect of changes in our own credit risk (380) (278)    
Issuances 5 7    
Interest accrual (16) (6)    
Attributed fees 545 557    
Expected claims (51) (50)    
Effect of changes in interest rates (360) 112    
Effect of changes in interest rate volatility 53 (87)    
Effect of changes in equity markets (488) (724)    
Effect of changes in equity index volatility (33) 20    
Actual outcome different from model expected outcome 148 143    
Effect of changes in future expected policyholder behavior 0 0    
Effect of changes in other future expected assumptions (74) (44)    
Other, including foreign exchange 0 0    
Balance, end of period (651) (350)    
Effect of changes in our own credit risk 407 702 $ 729 $ 587
Balance, end of period (244) 352    
Less: Reinsured MRB, end of period (169) (1,028)    
Net $ (413) $ (676)    
Net amount at risk        
Average attained age of contract holders 73 years 73 years    
Corporate & Other | Combined        
Net amount at risk        
Net amount at risk $ 306 $ 333    
Corporate & Other | GMDB only        
Net amount at risk        
Net amount at risk 491 346    
Corporate & Other | GMWB only        
Net amount at risk        
Net amount at risk $ 0 $ 0