XML 64 R53.htm IDEA: XBRL DOCUMENT v3.5.0.2
Stock-Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Stock-based compensation        
Pre-tax compensation expense $ 10 $ 7 $ 25 $ 30
Income tax benefit $ 4 $ 3 $ 9 $ 11
Tax rate (as a percent) 37.00% 37.00% 37.00% 37.00%
Long-term stock awards        
Stock-based compensation        
Pre-tax compensation expense $ 5 $ 6 $ 17 $ 19
Stock Options        
Stock-based compensation        
Pre-tax compensation expense 1 1 2 5
Phantom stock awards and stock appreciation rights        
Stock-based compensation        
Pre-tax compensation expense $ 4 $ 0 $ 6 $ 6