v3.24.1.u1
Policyholder Contract Deposits and Other Policyholder Funds - Rollforward of policyholder contract deposit (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year $ 163,408 $ 158,494  
Deposits 7,443 7,210  
Policy charges (717) (771)  
Surrenders and withdrawals (7,191) (5,666)  
Benefit payments (1,594) (1,897)  
Net transfers from (to) separate account 2,250 1,762  
Interest credited 1,437 883  
Other (3) (12)  
Policyholder contract deposits account balance, end of period 165,033 160,003  
Other reconciling items (1,250) (1,978)  
Policyholder contract deposits 163,783 158,025 $ 162,050
Cash surrender value 142,864 139,467  
Individual Retirement      
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year 94,896 89,554  
Deposits 4,878 4,864  
Policy charges (186) (244)  
Surrenders and withdrawals (4,600) (3,171)  
Benefit payments (761) (1,036)  
Net transfers from (to) separate account 1,248 728  
Interest credited 816 377  
Other (3) (2)  
Policyholder contract deposits account balance, end of period 96,288 91,070  
Other reconciling items (1,225) (1,889)  
Policyholder contract deposits $ 95,063 $ 89,181  
Weighted average crediting rate 2.86% 2.52%  
Cash surrender value $ 89,795 $ 84,906  
Group Retirement      
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year 41,299 43,395  
Deposits 1,349 1,326  
Policy charges (122) (110)  
Surrenders and withdrawals (2,466) (2,016)  
Benefit payments (494) (557)  
Net transfers from (to) separate account 1,024 592  
Interest credited 303 270  
Other 2 3  
Policyholder contract deposits account balance, end of period 40,895 42,903  
Other reconciling items (192) (279)  
Policyholder contract deposits $ 40,703 $ 42,624  
Weighted average crediting rate 3.05% 2.78%  
Cash surrender value $ 39,746 $ 41,361  
Life Insurance      
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year 10,231 10,224  
Deposits 407 414  
Policy charges (377) (384)  
Surrenders and withdrawals (73) (56)  
Benefit payments (79) (49)  
Net transfers from (to) separate account 5 (1)  
Interest credited 121 88  
Other 6 (16)  
Policyholder contract deposits account balance, end of period 10,241 10,220  
Other reconciling items 134 116  
Policyholder contract deposits $ 10,375 $ 10,336  
Weighted average crediting rate 4.39% 4.24%  
Cash surrender value $ 9,042 $ 8,874  
Institutional Markets      
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year 13,649 11,734  
Deposits 798 595  
Policy charges (17) (17)  
Surrenders and withdrawals (31) (403)  
Benefit payments (181) (167)  
Net transfers from (to) separate account (27) 443  
Interest credited 157 105  
Other (11) 4  
Policyholder contract deposits account balance, end of period 14,337 12,294  
Other reconciling items 33 74  
Policyholder contract deposits $ 14,370 $ 12,368  
Weighted average crediting rate 4.59% 3.55%  
Cash surrender value $ 2,585 $ 2,545  
Corporate and Other      
Policyholder Account Balance [Roll Forward]      
Policyholder contract deposits account balance, beginning of year 3,333 3,587  
Deposits 11 11  
Policy charges (15) (16)  
Surrenders and withdrawals (21) (20)  
Benefit payments (79) (88)  
Net transfers from (to) separate account 0 0  
Interest credited 40 43  
Other 3 (1)  
Policyholder contract deposits account balance, end of period 3,272 3,516  
Other reconciling items 0 0  
Policyholder contract deposits $ 3,272 $ 3,516  
Weighted average crediting rate 4.98% 4.95%  
Cash surrender value $ 1,696 $ 1,781