v3.26.1
Reinsurance - Schedule of the composition of pool of assets (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Effects of Reinsurance [Line Items]    
Bonds available-for-sale [1] $ 187,673 $ 189,381
Fixed maturity securities - fair value option [1] 5,386 5,407
Loans 55,106 55,208
Real estate investments 1,023 985
Private equity funds/hedge funds 8,197 8,123
Short-term Investments [1] 4,728 5,675
Derivative assets net, carrying value 918 441
Derivative assets net, fair value 8,332 10,029
Other assets [1] 5,021 4,435
Total assets 407,060 413,547
Carrying Value    
Effects of Reinsurance [Line Items]    
Short-term Investments 3,014 4,051
Other assets 2,688 2,470
Commercial Mortgages    
Effects of Reinsurance [Line Items]    
Loans 36,846 37,009
Policy loans    
Effects of Reinsurance [Line Items]    
Loans 1,685 1,694
Fortitude Holdings    
Effects of Reinsurance [Line Items]    
Derivative asset, fair value of collateral 0 0
Derivative liability, Fair value of collateral 562 615
Fortitude Holdings | Carrying Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 12,286 12,739
Fixed maturity securities - fair value option 4,998 4,982
Real estate investments 95 118
Private equity funds/hedge funds 1,762 1,800
Short-term Investments 266 399
Funds withheld investment assets 22,362 23,085
Derivative assets net, carrying value 0 0
Other assets 894 667
Total assets 23,256 23,752
Fortitude Holdings | Fair Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 12,286 12,739
Fixed maturity securities - fair value option 4,998 4,982
Real estate investments 129 165
Private equity funds/hedge funds 1,762 1,800
Short-term Investments 266 399
Funds withheld investment assets 22,204 22,981
Derivative assets net, fair value 0 0
Other assets 894 667
Total 23,098 23,648
Fortitude Holdings | Commercial Mortgages | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 2,656 2,745
Fortitude Holdings | Commercial Mortgages | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable 2,464 2,594
Fortitude Holdings | Policy loans | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 299 302
Fortitude Holdings | Policy loans | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable $ 299 $ 302
[1] See Note 8 for details of balances associated with variable interest entities