v3.26.3
Policyholder Account Balances (Account Balances) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Policyholder Account Balance [Line Items]            
Policyholder Account Balance $ 42,287 $ 35,681 $ 42,287 $ 35,681    
Interest credited 533 547 1,630 1,160    
Policyholder Account Balance, Increase (Decrease) from Other Change     0 47    
Life Insurance Product Line [Member] | Americas [Member] | Other Segments            
Policyholder Account Balance [Line Items]            
Policyholder Account Balance 3,604 3,300 3,604 3,300 $ 3,318 $ 3,273
Policyholder Account Balance, Issuance     633 330    
Policyholder Account Balance, Policy Charge     (246) (254)    
Policyholder Account Balance, Surrender and Withdrawal     (80) (76)    
Policyholder Account Balance, Benefit Payment     (152) (92)    
Interest credited     131 119    
Policyholder Account Balance Foreign Currency Translation     0 0    
Policyholder Account Balance Reinsurance Recoverable 0 0 0 0    
Policyholder Account Balance After Reinsurance 3,604 3,300 3,604 3,300    
Policyholder Account Balance, Net Amount at Risk [1] 26,965 25,190 26,965 25,190    
Policyholder Account Balance, Cash Surrender Value $ 3,597 $ 3,295 $ 3,597 $ 3,295    
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 $ 27,088 $ 26,018 $ 27,088 $ 26,018 26,186 16,432
Policyholder Account Balance, Issuance     2,513 10,974    
Policyholder Account Balance, Policy Charge     (598) (251)    
Policyholder Account Balance, Surrender and Withdrawal     (1,308) (1,249)    
Policyholder Account Balance, Benefit Payment     (526) (425)    
Interest credited     821 537    
Policyholder Account Balance Foreign Currency Translation     0 0    
Policyholder Account Balance Reinsurance Recoverable (4,443) (2,653) (4,443) (2,653)    
Policyholder Account Balance After Reinsurance 22,645 23,365 22,645 23,365    
Policyholder Account Balance, Net Amount at Risk [1] 127,923 134,062 127,923 134,062    
Policyholder Account Balance, Cash Surrender Value $ 26,729 $ 25,779 $ 26,729 $ 25,779    
Policyholder Account Balance, Weighted Average Crediting Rate 3.70% 3.50% 3.70% 3.50%    
Insurance, Other | Asia Pacific [Member] | Other Segments            
Policyholder Account Balance [Line Items]            
Policyholder Account Balance $ 11,595 $ 6,316 $ 11,595 $ 6,316 $ 7,804 $ 4,285
Policyholder Account Balance, Issuance     4,574 2,224    
Policyholder Account Balance, Policy Charge     (25) (9)    
Policyholder Account Balance, Surrender and Withdrawal     (519) (144)    
Policyholder Account Balance, Benefit Payment     (584) (233)    
Interest credited     315 154    
Policyholder Account Balance Foreign Currency Translation     30 39    
Policyholder Account Balance Reinsurance Recoverable 0 0 0 0    
Policyholder Account Balance After Reinsurance 11,595 6,316 11,595 6,316    
Policyholder Account Balance, Net Amount at Risk [1] 0 0 0 0    
Policyholder Account Balance, Cash Surrender Value $ 10,608 $ 5,948 $ 10,608 $ 5,948    
Policyholder Account Balance, Weighted Average Crediting Rate 4.60% 4.20% 4.60% 4.20%    
[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.