v3.26.1
Policyholder Account Balances, Future Policy Benefits and Claims - Balance of and Changes in Policyholder Account Balances (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Policyholder Account Balance [Roll Forward]    
Beginning balance $ 37,005 $ 32,542
Contract deposits 2,500 4,602
Policy charges (196) (400)
Surrenders and other benefits (1,518) (2,424)
Net transfer from (to) separate account liabilities (86) (163)
Variable account index-linked adjustments 1,713 2,206
Interest credited 328 642
Ending balance 39,746 37,005
Variable Annuities    
Policyholder Account Balance [Roll Forward]    
Beginning balance 3,320 3,680
Contract deposits 23 57
Policy charges (6) (13)
Surrenders and other benefits (208) (486)
Net transfer from (to) separate account liabilities (8) (31)
Variable account index-linked adjustments 0 0
Interest credited 52 113
Ending balance $ 3,173 $ 3,320
Weighted-average crediting rate 3.30% 3.30%
Cash surrender value $ 3,158 $ 3,302
Structured Variable Annuities    
Policyholder Account Balance [Roll Forward]    
Beginning balance 21,504 16,330
Contract deposits 2,123 3,816
Policy charges (2) (4)
Surrenders and other benefits (806) (846)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 1,713 2,206
Interest credited 1 2
Ending balance $ 24,533 $ 21,504
Weighted-average crediting rate 1.80% 1.90%
Cash surrender value $ 23,411 $ 20,582
Fixed Annuities    
Policyholder Account Balance [Roll Forward]    
Beginning balance 4,918 5,369
Contract deposits 16 35
Policy charges 0 0
Surrenders and other benefits (296) (677)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 91 191
Ending balance $ 4,729 $ 4,918
Weighted-average crediting rate 3.90% 3.80%
Cash surrender value $ 4,728 $ 4,916
Fixed Indexed Annuities    
Policyholder Account Balance [Roll Forward]    
Beginning balance 289 305
Contract deposits 0 0
Policy charges 0 0
Surrenders and other benefits (28) (26)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 7 10
Ending balance $ 268 $ 289
Weighted-average crediting rate 2.10% 2.10%
Cash surrender value $ 254 $ 272
Non-Life Contingent Payout Annuities    
Policyholder Account Balance [Roll Forward]    
Beginning balance 435 447
Contract deposits 35 73
Policy charges 0 0
Surrenders and other benefits (50) (99)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 7 14
Ending balance 427 435
Universal Life Insurance    
Policyholder Account Balance [Roll Forward]    
Beginning balance 1,349 1,405
Contract deposits 51 138
Policy charges (83) (169)
Surrenders and other benefits (26) (72)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 22 47
Ending balance $ 1,313 $ 1,349
Weighted-average crediting rate 3.60% 3.60%
Net amount at risk $ 7,762 $ 7,944
Cash surrender value 1,215 1,241
Variable Universal Life Insurance    
Policyholder Account Balance [Roll Forward]    
Beginning balance 1,705 1,647
Contract deposits 173 318
Policy charges (45) (91)
Surrenders and other benefits (44) (102)
Net transfer from (to) separate account liabilities (78) (132)
Variable account index-linked adjustments 0 0
Interest credited 35 65
Ending balance $ 1,746 $ 1,705
Weighted-average crediting rate 3.90% 3.90%
Net amount at risk $ 56,937 $ 57,269
Cash surrender value 1,130 1,109
Indexed Universal Life Insurance    
Policyholder Account Balance [Roll Forward]    
Beginning balance 3,048 2,894
Contract deposits 79 165
Policy charges (60) (123)
Surrenders and other benefits (35) (71)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 105 183
Ending balance $ 3,137 $ 3,048
Weighted-average crediting rate 3.00% 3.00%
Net amount at risk $ 12,705 $ 13,040
Cash surrender value 2,755 2,640
Other Life Insurance    
Policyholder Account Balance [Roll Forward]    
Beginning balance 437 465
Contract deposits 0 0
Policy charges 0 0
Surrenders and other benefits (25) (45)
Net transfer from (to) separate account liabilities 0 0
Variable account index-linked adjustments 0 0
Interest credited 8 17
Ending balance $ 420 $ 437
Weighted-average crediting rate 4.00% 4.00%
Net amount at risk $ 115 $ 121
Cash surrender value $ 266 $ 274