v3.23.1
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Aug. 23, 2022
Dec. 31, 2022
Apr. 05, 2022
Dec. 31, 2021
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Short-term debt   $ 1,500   $ 8,317
Total long-term debt   7,927   427
Debt issuance costs   (59)   0
Long-term debt   7,868   427
Total debt, net of issuance costs   15,326   15,680
Debt of consolidated investment entities        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Long-term debt [1]   $ 5,958   6,936
Debt of consolidated investment entities | Minimum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   0.00%    
Debt of consolidated investment entities | Maximum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   12.27%    
Senior unsecured notes | Line of Credit        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Long-term debt   $ 6,500    
Senior unsecured notes | Line of Credit | Line of Credit | Senior unsecured notes        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Total long-term debt     $ 6,500  
Hybrid junior subordinated notes | AIGLH notes        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent) 6.875%      
Debt instrument term (in years) 5 years      
Long-term debt   1,000    
AIGLH notes | AIGLH notes        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Total long-term debt   200   200
Long-term debt   $ 200    
AIGLH notes | AIGLH notes | Minimum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   6.63%    
AIGLH notes | AIGLH notes | Maximum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   7.50%    
AIGLH junior subordinated debentures | AIGLH junior subordinated debentures        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Total long-term debt   $ 227   $ 227
Long-term debt   $ 227    
AIGLH junior subordinated debentures | AIGLH junior subordinated debentures | Minimum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   7.57%    
AIGLH junior subordinated debentures | AIGLH junior subordinated debentures | Maximum        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Interest rate (as a percent)   8.50%    
Three Year DDTL Facility | Line of Credit | Senior unsecured notes        
Schedule of Long Term and Short Term Debt Instruments [Line Items]        
Short-term debt   $ 1,500    
[1] See Note 9 for details of balances associated with variable interest entities