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Stock Compensation Plans - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
RSUs | Cliff      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Performance-Based RSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average fair value of awards granted (in dollars per share) $ 79.93 $ 77.91 $ 77.67
Total fair value of awards that vested $ 21 $ 18 $ 15
Total unrecognized stock compensation expense $ 15    
Weighted average period to recognize unrecognized compensation cost 1 year 9 months 7 days    
Performance-Based RSUs | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award available for grant 0.00%    
Performance-Based RSUs | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award available for grant 200.00%    
Performance-Based RSUs | Cliff      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Time-Based RSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average fair value of awards granted (in dollars per share) $ 73.13 $ 78.15 $ 71.88
Total fair value of awards that vested $ 39 $ 30 $ 23
Total unrecognized stock compensation expense $ 28    
Weighted average period to recognize unrecognized compensation cost 1 year 9 months 3 days    
2021 Stock Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares outstanding other than RSUs (in shares) 0 0 0
Common stock, shares authorized (in shares) 17,000,000    
Shares available (in shares) 4,000,000