v3.24.1.u1
Reinsurance - Summary of the composition of pool of assets (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Effects of Reinsurance [Line Items]    
Bonds available-for-sale [1] $ 168,826 $ 166,527
Fixed maturity securities - fair value option [1] 4,646 4,578
Loans 48,544 47,565
Investment real estate 1,896 1,932
Private equity funds/hedge funds 7,523 7,690
Short-term Investments [1] 4,144 4,336
Derivative assets net, carrying value 491 393
Derivative assets net, fair value 7,151 5,925
Other assets [1] 2,142 2,294
Total assets 385,588 379,270
Carrying Value    
Effects of Reinsurance [Line Items]    
Short-term Investments 2,887 2,928
Other assets 13 13
Commercial Mortgages    
Effects of Reinsurance [Line Items]    
Loans 34,651 34,172
Policy loans    
Effects of Reinsurance [Line Items]    
Loans 1,747 1,746
Fortitude Holdings    
Effects of Reinsurance [Line Items]    
Derivative asset, fair value of collateral 14 62
Derivative liability, Fair value of collateral 1 6
Fortitude Holdings | Carrying Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 14,656 15,204
Fixed maturity securities - fair value option 4,283 4,212
Investment real estate 175 184
Private equity funds/hedge funds 1,920 1,910
Short-term Investments 161 129
Funds withheld investment assets 24,865 25,347
Derivative assets net, carrying value 14 45
Other assets 571 641
Total assets 25,450 26,033
Fortitude Holdings | Fair Value    
Effects of Reinsurance [Line Items]    
Bonds available-for-sale 14,656 15,204
Fixed maturity securities - fair value option 4,283 4,212
Investment real estate 302 329
Private equity funds/hedge funds 1,920 1,910
Short-term Investments 161 129
Funds withheld investment assets 24,738 25,271
Derivative assets net, fair value 14 45
Other assets 571 641
Total 25,323 25,957
Fortitude Holdings | Commercial Mortgages | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 3,345 3,378
Fortitude Holdings | Commercial Mortgages | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable 3,091 3,157
Fortitude Holdings | Policy loans | Carrying Value    
Effects of Reinsurance [Line Items]    
Loans 325 330
Fortitude Holdings | Policy loans | Fair Value    
Effects of Reinsurance [Line Items]    
Mortgage and other loans receivable $ 325 $ 330
[1] See Note 9 for details of balances associated with variable interest entities