XML 114 R71.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Stock-Based Compensation Plans - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation award vesting period 3 years    
Realized tax benefits $ 24,000,000 $ 15,000,000 $ 15,000,000
Tax benefit associated with stock-based compensation expense $ 10,000,000 18,000,000 10,000,000
Stock option expiration period 10 years    
Stock options granted in period (shares) 0    
Cash received from stock options exercised $ 23,000,000 12,000,000 $ 0
Weighted-average remaining contractual term of options outstanding 2 years 1 month 28 days    
EDCP      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferral period (years) 3 years    
DCPD      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Net liability recognized $ 9,000,000 $ 9,000,000  
Performance-based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award paid in stock (percent) 66.67%    
Award paid in cash (percent) 33.33%    
Liability recognized $ 46,000,000    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation award vesting period 3 years    
Share-based compensation expense $ 44,000,000    
Granted (in dollars per share) $ 41.23 $ 36.78 $ 31.71
Fair value of restricted stock units vested $ 91,000,000 $ 62,000,000 $ 42,000,000
Unrecognized cost $ 31,000,000    
Unrecognized cost, period for recognition 3 years    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation award vesting period 1 year    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation award vesting period 10 years    
ICP 2007      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum limit of total stock awards (in shares) 29,000,000    
Stock-based compensation award number of shares available for future 0    
ICP 2015      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum limit of total stock awards (in shares) 10,000,000    
Stock-based compensation award number of shares available for future 3,900,000    
401(k) Savings Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance 1,000,000 1,300,000