v3.26.1
LIABILITIES FOR FUTURE POLICYHOLDER BENEFITS - Policyholder Account Balance (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Present Value of Expected Future Policy Benefits        
Liability for future policy benefits $ 17,441   $ 17,660  
Retirement | Payout        
Present Value of Expected Net Premiums        
Balance, beginning of period 0 $ 0    
Beginning balance at original discount rate 0 0    
Effect of changes in cash flow assumptions 0 0    
Effect of actual variances from expected experience 0 0    
Adjusted beginning of period balance     0 $ 0
Issuances 0 0    
Interest accrual 0 0    
Net premiums collected 0 0    
Ending Balance at original discount rate 0 0    
Effect of changes in discount rate assumptions 0 0    
Balance, end of period 0 0    
Present Value of Expected Future Policy Benefits        
Balance, beginning of period 5,243 5,050    
Beginning balance of original discount rate 5,402 5,390    
Beginning balance before AOCI adjustments (15) (468)    
Effect of actual variances from expected experience 0 (1)    
Adjusted beginning of period balance     5,387 4,921
Issuances 172 201    
Interest accrual 52 51    
Benefits payments (141) (127)    
Ending Balance at original discount rate 5,470 5,046    
Effect of changes in discount rate assumptions (227) (264)    
Balance, end of period 5,243 4,782    
Impact of flooring LFPB at zero 0 0    
Liability for future policy benefits 5,243 4,782 5,243  
Less: Reinsurance recoverable (1,206) (960)    
Net liability for future policy benefits, after reinsurance recoverable $ 4,037 $ 3,822    
Weighted-average duration of liability for future policyholder benefits (years) 7 years 4 months 24 days 7 years 8 months 12 days    
Corporate & Other | Term        
Present Value of Expected Net Premiums        
Balance, beginning of period $ 1,818 $ 1,932    
Beginning balance at original discount rate 1,802 1,959    
Effect of changes in cash flow assumptions 0 0    
Effect of actual variances from expected experience (26) (29)    
Adjusted beginning of period balance     1,776 1,930
Issuances 8 11    
Interest accrual 22 24    
Net premiums collected (42) (46)    
Ending Balance at original discount rate 1,764 1,919    
Effect of changes in discount rate assumptions (16) (7)    
Balance, end of period 1,748 1,912    
Present Value of Expected Future Policy Benefits        
Balance, beginning of period 3,058 3,216    
Beginning balance of original discount rate 2,991 3,215    
Beginning balance before AOCI adjustments 0 0    
Effect of actual variances from expected experience (38) (39)    
Adjusted beginning of period balance     2,953 3,176
Issuances 8 11    
Interest accrual 37 40    
Benefits payments (58) (58)    
Ending Balance at original discount rate 2,940 3,169    
Effect of changes in discount rate assumptions 16 34    
Balance, end of period 2,956 3,203    
Impact of flooring LFPB at zero 1 1    
Liability for future policy benefits 1,209 1,292 1,241  
Less: Reinsurance recoverable (916) 6    
Net liability for future policy benefits, after reinsurance recoverable $ 293 $ 1,298    
Weighted-average duration of liability for future policyholder benefits (years) 6 years 9 months 18 days 6 years 9 months 18 days    
Corporate & Other | Group Pension        
Present Value of Expected Net Premiums        
Balance, beginning of period $ 0 $ 0    
Beginning balance at original discount rate 0 0    
Effect of changes in cash flow assumptions 0 0    
Effect of actual variances from expected experience 0 0    
Adjusted beginning of period balance     0 0
Issuances 0 0    
Interest accrual 0 0    
Net premiums collected 0 0    
Ending Balance at original discount rate 0 0    
Effect of changes in discount rate assumptions 0 0    
Balance, end of period 0 0    
Present Value of Expected Future Policy Benefits        
Balance, beginning of period 432 460    
Beginning balance of original discount rate 472 514    
Beginning balance before AOCI adjustments 0 0    
Effect of actual variances from expected experience 0 0    
Adjusted beginning of period balance     472 514
Issuances 0 0    
Interest accrual 4 5    
Benefits payments (14) (16)    
Ending Balance at original discount rate 462 503    
Effect of changes in discount rate assumptions (45) (49)    
Balance, end of period 417 454    
Impact of flooring LFPB at zero 0 0    
Liability for future policy benefits 417 454 432  
Less: Reinsurance recoverable 0 0    
Net liability for future policy benefits, after reinsurance recoverable $ 417 $ 454    
Weighted-average duration of liability for future policyholder benefits (years) 6 years 9 months 18 days 6 years 10 months 24 days    
Corporate & Other | Health        
Present Value of Expected Net Premiums        
Balance, beginning of period $ (23) $ (25)    
Beginning balance at original discount rate (24) (26)    
Effect of changes in cash flow assumptions 0 0    
Effect of actual variances from expected experience 0 (2)    
Adjusted beginning of period balance     (24) (28)
Issuances 0 0    
Interest accrual 0 0    
Net premiums collected 1 1    
Ending Balance at original discount rate (23) (27)    
Effect of changes in discount rate assumptions 1 1    
Balance, end of period (22) (26)    
Present Value of Expected Future Policy Benefits        
Balance, beginning of period 1,293 1,337    
Beginning balance of original discount rate 1,458 1,555    
Beginning balance before AOCI adjustments 0 0    
Effect of actual variances from expected experience (1) (6)    
Adjusted beginning of period balance     1,457 $ 1,549
Issuances 0 0    
Interest accrual 12 13    
Benefits payments (36) (38)    
Ending Balance at original discount rate 1,433 1,524    
Effect of changes in discount rate assumptions (181) (197)    
Balance, end of period 1,252 1,327    
Impact of flooring LFPB at zero 0 0    
Liability for future policy benefits 1,274 1,353 $ 1,316  
Less: Reinsurance recoverable (991) (1,060)    
Net liability for future policy benefits, after reinsurance recoverable $ 283 $ 293    
Weighted-average duration of liability for future policyholder benefits (years) 8 years 1 month 6 days 8 years 3 months 18 days