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Stock-Based Compensation - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
program
shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
performance_criteria
Stock-Based Compensation      
Compensation cost that has been charged against income $ 17 $ 16 $ 18
Total income tax benefit recognized 3 2 3
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted $ 31    
Expected weighted-average period of recognition of unrecognized compensation cost 2 years    
Total fair value of shares vested $ 24 25 $ 22
Performance Share Awards      
Performance period 3 years    
Number of unrelated performance element criteria | program 3    
Number of performance element criteria | performance_criteria     2
Restricted Stock Units      
Stock-Based Compensation      
Share-based liabilities paid $ 6 3 $ 4
Cash flow effect, cash used to settle awards $ 3 $ 3 $ 3
Restricted Stock Units, Stock Grants and Stock Units      
Vesting period 4 years    
Percentage of cash that the participant may elect as a dividend for the first option available under the plan     50.00%
Percentage of stock that the participant may elect as dividend under second option of plan     50.00%
Performance Shares | Minimum      
Performance Share Awards      
Exact number of shares issued as a percentage of the target award 0.00%   0.00%
Performance Shares | Maximum      
Performance Share Awards      
Exact number of shares issued as a percentage of the target award 200.00%   200.00%
Officers and Key Employees | Restricted Stock Units      
Restricted Stock Units, Stock Grants and Stock Units      
Percentage of fully transferable shares of stock that the participant may elect as a deferral for the first option available under the plan     100.00%
Percentage of fully transferable shares of stock in that participant may receive cash     100.00%
Non-Officer Board of Director Member | Restricted Stock Units      
Restricted Stock Units, Stock Grants and Stock Units      
Percentage of fully transferable shares of stock that the participant may elect as a deferral for the first option available under the plan     100.00%
Percentage of cash that the participant may elect as a dividend for the first option available under the plan     100.00%
Percentage of stock that the participant may elect as dividend under second option of plan     50.00%
Percentage of fully transferable shares of stock that the participant may elect as a dividend equivalent deferral for the first option available under the plan     50.00%
2012 Plan      
Stock-Based Compensation      
Common shares available for grant (in shares) | shares 4.3    
Common shares available for issuance (in shares) | shares 3.5