v3.23.1
Insurance Liabilities - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Liabilities for Guarantees on Long-Duration Contracts [Line Items]      
favorable (unfavorable) in actuarial assumptions for liability for future policy benefits $ 7 $ (25) $ 0
Favorable (unfavorable) future policy benefit from actuarial assumptions $ 24 117 $ (251)
Life premiums as percentage of gross premiums (as a percent) 1.30%    
Minimum      
Liabilities for Guarantees on Long-Duration Contracts [Line Items]      
Liability for policyholder contract deposits, interest rate (as a percent) 0.00%    
Maximum      
Liabilities for Guarantees on Long-Duration Contracts [Line Items]      
Liability for policyholder contract deposits, interest rate (as a percent) 9.00%    
Term Life Insurance      
Liabilities for Guarantees on Long-Duration Contracts [Line Items]      
Increase in reserves $ 26 $ 15  
Life Insurance      
Liabilities for Guarantees on Long-Duration Contracts [Line Items]      
Participating insurance in force (as a percent) 0.70%