v3.23.1
Share-Based Compensation Plans - Narrative (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
Dec. 31, 2020
Sep. 14, 2022
$ / shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share price (in USD per share)       $ 54.20
Number of shares authorized (in shares) | shares 40,000,000      
Conversion ratio 2.580952      
Restricted Stock Units (RSUs)        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Unrecognized compensation cost related to grants | $ $ 40      
Initial Public Offering        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Share price (in USD per share)       $ 21.00
Minimum | Restricted Stock Units (RSUs)        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Weighted average period (in years) 1 year      
Maximum | Restricted Stock Units (RSUs)        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Weighted average period (in years) 2 years 3 months      
AIG 2013 Long Term Incentive Plan | Awarded 2018 to 2020        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Performance period (in years)     3 years  
AIG 2013 Long Term Incentive Plan | Minimum | Awarded 2018 to 2020        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Percentage of performance period depending on which actual number of awards can be earned 0.00% 0.00% 0.00%  
AIG 2013 Long Term Incentive Plan | Maximum | Awarded 2018 to 2020        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Percentage of performance period depending on which actual number of awards can be earned 200.00% 200.00% 200.00%