v3.26.1
Future policy benefits (Undiscounted & discounted FPB) (Details) - Segment Life [Member] - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Liability for Future Policy Benefit, Activity [Line Items]        
Discounted expected future benefit payments $ 33,821 $ 32,775 $ 33,524 $ 30,635
Term Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 4,607   4,563  
Undiscounted expected future gross premiums 6,802   7,094  
Discounted expected future benefit payments 2,342 2,313 2,344 2,238
Discounted expected future gross premiums 4,545   4,775  
Whole Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 34,510   30,751  
Undiscounted expected future gross premiums 11,062   10,841  
Discounted expected future benefit payments 14,739 13,791 13,407 12,057
Discounted expected future gross premiums 9,262   8,929  
Accident and Health Insurance Product Line [Member]        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 26,692   28,274  
Undiscounted expected future gross premiums 39,629   41,427  
Discounted expected future benefit payments 15,259 15,587 16,781 15,693
Discounted expected future gross premiums 23,846   24,697  
Insurance, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 2,759   1,754  
Undiscounted expected future gross premiums 945   570  
Discounted expected future benefit payments 1,481 $ 1,084 992 $ 647
Discounted expected future gross premiums $ 892   $ 527