XML 78 R104.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Stock-Based Compensation (Details)
$ in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2017
shares
Dec. 31, 2012
shares
Dec. 31, 2019
USD ($)
performance_criteria
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
shares
Stock-Based Compensation            
Compensation cost that has been charged against income | $     $ 18 $ 20 $ 21  
Total income tax benefit recognized | $     7 7 15  
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted | $     $ 9      
Expected weighted-average period of recognition of unrecognized compensation cost     2 years      
Total fair value of shares vested | $     $ 21 24 22  
Performance Shares            
Number of performance element criteria | performance_criteria     2      
Performance period     3 years      
Restricted stock unit awards            
Stock-Based Compensation            
Share-based liabilities paid | $     $ 5 4 4  
Cash flow effect, cash used to settle awards | $     $ 5 $ 5 $ 4  
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%      
Restricted Stock Units, Stock Grants, and Stock Units            
Restricted Stock Units, Stock Grants and Stock Units            
Granted (in shares)     109,106      
Shares released during period (in shares)     5,383      
Performance Shares            
Restricted Stock Units, Stock Grants and Stock Units            
Granted (in shares)     142,874      
Shares released during period (in shares)     9,074      
Performance Shares | Maximum            
Performance Shares            
Exact number of shares issued as a percentage of the target award     200.00%      
Performance Shares | Minimum            
Performance Shares            
Exact number of shares issued as a percentage of the target award     0.00%      
Officers and Key Employees | Restricted stock unit awards            
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%      
Chief Executive Officer | Retention units            
Restricted Stock Units, Stock Grants and Stock Units            
Granted (in shares)   50,617        
Additional shares to be granted as retention award if performance requirements are met (in shares)           33,745
Shares released during period (in shares) 84,362          
Non-Officer Board of Director Member | Restricted stock unit awards            
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)     4,600,000      
Common shares available for issuance (in shares)     1,600,000