XML 135 R106.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
performance_criteria
shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Stock-Based Compensation      
Compensation cost that has been charged against income $ 18 $ 18 $ 18
Total income tax benefit recognized 3 4 7
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted $ 11    
Expected weighted-average period of recognition of unrecognized compensation cost 2 years    
Total fair value of shares vested $ 22 22 21
Performance Share Awards      
Number of performance element criteria | performance_criteria 2    
Performance period 3 years    
Restricted Stock Units      
Stock-Based Compensation      
Share-based liabilities paid $ 4 6 5
Cash flow effect, cash used to settle awards $ 3 $ 4 $ 5
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%    
Performance Shares | Maximum      
Performance Share Awards      
Exact number of shares issued as a percentage of the target award 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 cash that the participant may elect as a dividend equivalent deferral for the first option available under the 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 1.5    
Common shares available for issuance (in shares) | shares 1.2