v3.26.1
Policyholder Account Balances - LDTI Rollforward (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period $ 104,091  
Balance, end of period 104,711  
Group Life    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 10,197  
Deposits 1,084 $ 935
Policy charges (167) (167)
Surrenders and withdrawals (908) (892)
Benefit payments (3) (4)
Net transfers from (to) separate accounts (1) 1
Interest credited 63 66
Balance, end of period $ 10,265 $ 10,492
Weighted-average annual crediting rate 2.50% 2.50%
Cash surrender value $ 10,195 $ 10,428
Group Life | Previously Reported    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period   7,469
Group Life | Reclassification, Segmentation Basis Change    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 0 3,084
Group Life | In the event of death    
Policyholder Account Balance [Roll Forward]    
Net amount at risk 269,900 266,816
Capital Markets Investment Products and Stable Value GICs    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 59,278 57,799
Deposits 17,713 20,402
Surrenders and withdrawals (17,037) (20,561)
Interest credited 524 535
Effect of foreign currency translation and other, net (361) 477
Balance, end of period $ 60,117 $ 58,652
Weighted-average annual crediting rate 3.60% 3.80%
Cash surrender value $ 1,168 $ 1,054
Annuities and Risk Solutions    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 15,671  
Deposits 532 264
Policy charges (45) (44)
Surrenders and withdrawals (455) (146)
Benefit payments (168) (161)
Net transfers from (to) separate accounts (6) 15
Interest credited 161 150
Other 74 16
Balance, end of period $ 15,764 $ 14,876
Weighted-average annual crediting rate 4.20% 4.10%
Cash surrender value $ 10,954 $ 10,443
Annuities and Risk Solutions | Previously Reported    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period   11,673
Annuities and Risk Solutions | Reclassification, Segmentation Basis Change    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 0 3,109
Annuities and Risk Solutions | In the event of death    
Policyholder Account Balance [Roll Forward]    
Net amount at risk 34,555 33,999
Annuities and Risk Solutions | At annuitization or exercise of other living benefits    
Policyholder Account Balance [Roll Forward]    
Net amount at risk 13 15
Fixed Annuity    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 5,788  
Deposits 22 25
Policy charges (2) (2)
Surrenders and withdrawals (180) (226)
Benefit payments (66) (83)
Net transfers from (to) separate accounts 4 24
Interest credited 43 48
Other (2) (3)
Balance, end of period $ 5,607 $ 6,187
Weighted-average annual crediting rate 3.10% 3.10%
Cash surrender value $ 5,091 $ 5,598
Fixed Annuity | Previously Reported    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period   9,513
Fixed Annuity | Reclassification, Segmentation Basis Change    
Policyholder Account Balance [Roll Forward]    
Balance, beginning of period 0 (3,109)
Fixed Annuity | In the event of death    
Policyholder Account Balance [Roll Forward]    
Net amount at risk 2,425 2,577
Fixed Annuity | At annuitization or exercise of other living benefits    
Policyholder Account Balance [Roll Forward]    
Net amount at risk $ 814 $ 738