v3.23.1
Investments - Carrying amounts of other invested assets (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Investments [Line Items]    
Investment real estate $ 1,831 $ 2,349
All other investments 573 691
Total [1] 10,418 10,567
Accumulated depreciation on investment in real estate 616 493
Total derivatives with related parties    
Investments [Line Items]    
Total 6 11
Fortitude    
Investments [Line Items]    
All other investments 156 100
Private equity funds/hedge funds    
Investments [Line Items]    
Alternative investments 8,014 7,527
Hedge Funds    
Investments [Line Items]    
Total $ 884 $ 1,000
Percentage available for redemption in current fiscal year 77.00% 73.00%
Percentage available for redemption in the six years following the current fiscal year 23.00% 27.00%
Private equity funds    
Investments [Line Items]    
Alternative investments $ 5,163 $ 4,310
Total 7,100 6,500
Affordable Housing Partnerships    
Investments [Line Items]    
Accumulated depreciation on investment in real estate $ 124 $ 123
[1] See Note 9 for details of balances associated with variable interest entities