v3.26.1
Policyholder Account Balances (Account Balances) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Policyholder Account Balance [Line Items]            
Policyholder Account Balance $ 40,403 $ 25,167 $ 40,403 $ 25,167    
Interest credited 617 314 1,097 613    
Policyholder Account Balance, Increase (Decrease) from Other Change     0 48    
Life Insurance Product Line [Member] | Americas [Member] | Other Segments            
Policyholder Account Balance [Line Items]            
Policyholder Account Balance 3,600 3,285 3,600 3,285 $ 3,318 $ 3,273
Policyholder Account Balance, Issuance     533 226    
Policyholder Account Balance, Policy Charge     (168) (170)    
Policyholder Account Balance, Surrender and Withdrawal     (55) (52)    
Policyholder Account Balance, Benefit Payment     (114) (72)    
Interest credited     86 80    
Policyholder Account Balance Foreign Currency Translation     0 0    
Policyholder Account Balance Reinsurance Recoverable 0 0 0 0    
Policyholder Account Balance After Reinsurance 3,600 3,285 3,600 3,285    
Policyholder Account Balance, Net Amount at Risk [1] 26,394 25,691 26,394 25,691    
Policyholder Account Balance, Cash Surrender Value $ 3,593 $ 3,268 $ 3,593 $ 3,268    
Policyholder Account Balance, Weighted Average Crediting Rate 3.20% 3.10% 3.20% 3.10%    
Insurance, Other | Americas [Member] | Other Segments            
Policyholder Account Balance [Line Items]            
Policyholder Account Balance $ 26,440 $ 16,908 $ 26,440 $ 16,908 26,186 16,432
Policyholder Account Balance, Issuance     1,406 1,303    
Policyholder Account Balance, Policy Charge     (398) (40)    
Policyholder Account Balance, Surrender and Withdrawal     (946) (831)    
Policyholder Account Balance, Benefit Payment     (344) (249)    
Interest credited     536 293    
Policyholder Account Balance Foreign Currency Translation     0 0    
Policyholder Account Balance Reinsurance Recoverable (2,520) (2,692) (2,520) (2,692)    
Policyholder Account Balance After Reinsurance 23,920 14,216 23,920 14,216    
Policyholder Account Balance, Net Amount at Risk [1] 129,490 6,330 129,490 6,330    
Policyholder Account Balance, Cash Surrender Value $ 26,151 $ 16,670 $ 26,151 $ 16,670    
Policyholder Account Balance, Weighted Average Crediting Rate 3.60% 3.70% 3.60% 3.70%    
Insurance, Other | Asia Pacific [Member] | Other Segments            
Policyholder Account Balance [Line Items]            
Policyholder Account Balance $ 10,363 $ 4,926 $ 10,363 $ 4,926 $ 7,804 $ 4,285
Policyholder Account Balance, Issuance     3,025 756    
Policyholder Account Balance, Policy Charge     (17) (7)    
Policyholder Account Balance, Surrender and Withdrawal     (375) (107)    
Policyholder Account Balance, Benefit Payment     (289) (129)    
Interest credited     198 92    
Policyholder Account Balance Foreign Currency Translation     17 36    
Policyholder Account Balance Reinsurance Recoverable 0 0 0 0    
Policyholder Account Balance After Reinsurance 10,363 4,926 10,363 4,926    
Policyholder Account Balance, Net Amount at Risk [1] 0 0 0 0    
Policyholder Account Balance, Cash Surrender Value $ 9,709 $ 4,512 $ 9,709 $ 4,512    
Policyholder Account Balance, Weighted Average Crediting Rate 4.60% 4.00% 4.60% 4.00%    
[1] Net amount at risk is defined as the guaranteed amount less the account value as of the balance sheet date. The balance represents the amount of the claim the Company would incur if death claims were filed on all contracts on the balance sheet date.