v3.26.3
Future policy benefits (Undiscounted & discounted FPB) (Details) - Segment Life [Member] - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Liability for Future Policy Benefit, Activity [Line Items]        
Discounted expected future benefit payments $ 35,247 $ 32,775 $ 33,355 $ 30,635
Term Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 4,798   4,498  
Undiscounted expected future gross premiums 6,776   6,844  
Discounted expected future benefit payments 2,285 2,313 2,345 2,238
Discounted expected future gross premiums 4,604   4,609  
Whole Life Insurance        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 36,353   32,059  
Undiscounted expected future gross premiums 11,320   11,115  
Discounted expected future benefit payments 15,207 13,791 13,702 12,057
Discounted expected future gross premiums 9,493   9,180  
Accident and Health Insurance Product Line [Member]        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 29,650   27,189  
Undiscounted expected future gross premiums 43,668   40,031  
Discounted expected future benefit payments 16,135 15,587 16,259 15,693
Discounted expected future gross premiums 25,699   24,049  
Insurance, Other        
Liability for Future Policy Benefit, Activity [Line Items]        
Undiscounted expected future benefit payments 3,026   1,900  
Undiscounted expected future gross premiums 1,026   606  
Discounted expected future benefit payments 1,620 $ 1,084 1,049 $ 647
Discounted expected future gross premiums $ 971   $ 567