v3.25.4
Reinsurance - Schedule of the composition of pool of assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Effects of Reinsurance [Line Items]    
Bonds available-for-sale [1] $ 189,381 $ 170,840
Fixed maturity securities - fair value option [1] 5,407 5,262
Loans 55,208 53,539
Real estate investments 985 1,426
Private equity funds/hedge funds 8,123 7,829
Short-term Investments [1] 5,675 4,981
Derivative assets net, carrying value 441 193
Derivative assets net, fair value 10,029 7,250
Other assets [1] 4,435 2,042
Total assets 413,547 389,397
Carrying Value    
Effects of Reinsurance [Line Items]    
Short-term Investments 4,051 3,542
Other assets 2,470 14
Commercial Mortgages    
Effects of Reinsurance [Line Items]    
Loans 37,009 35,795
Policy loans    
Effects of Reinsurance [Line Items]    
Loans 1,694 1,726
Fortitude Holdings    
Effects of Reinsurance [Line Items]    
Derivative asset, fair value of collateral 0 7
Derivative liability, Fair value of collateral 615 182
Fortitude Holdings | Carrying Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 12,739 13,254
Fixed maturity securities - fair value option 4,982 4,914
Real estate investments 118 158
Private equity funds/hedge funds 1,800 1,893
Short-term Investments 399 274
Funds withheld investment assets 23,085 24,032
Derivative assets net, carrying value 0 2
Other assets 667 429
Total assets 23,752 24,463
Total 23,600 24,300
Fortitude Holdings | Fair Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 12,739 13,254
Fixed maturity securities - fair value option 4,982 4,914
Real estate investments 165 227
Private equity funds/hedge funds 1,800 1,893
Short-term Investments 399 274
Funds withheld investment assets 22,981 23,860
Derivative assets net, fair value 0 2
Other assets 667 429
Total 23,648 24,291
Fortitude Holdings | Commercial Mortgages | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 2,745 3,224
Fortitude Holdings | Commercial Mortgages | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable 2,594 2,983
Fortitude Holdings | Policy loans | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 302 315
Fortitude Holdings | Policy loans | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable $ 302 $ 315
[1] See Note 8 for details of balances associated with variable interest entities