XML 102 R77.htm IDEA: XBRL DOCUMENT v3.6.0.2
Share-Based Compensation - Restricted Stock Units and Restricted Stock Awards Activities (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Restricted Stock      
Restricted stock rights activity      
Restricted stock rights at the beginning of the period (in shares) 11,930    
Restricted stock rights, granted (in shares) 5,320    
Restricted stock rights, assumed (in shares) 3,349    
Restricted stock rights, vested (in shares) (7,109)    
Restricted stock rights, forfeited (in shares) (1,513)    
Restricted stock rights at the ending of the period (in shares) 11,977 11,930  
Restricted stock rights, weighted-average grant date fair value information      
Restricted stock rights, weighted-average grant date fair value at the beginning of the period (in dollars per share) $ 12.74    
Restricted stock rights, weighted-average grant date fair value, granted (in dollars per share) 36.92    
Restricted stock right, weighted-average grant date fair value, assumed (in dollars per share) 30.18    
Restricted stock rights, weighted-average grant date fair value, vested (in dollars per share) 18.34    
Restricted stock rights, weighted-average grant date fair value, forfeited (in dollars per share) 20.84    
Restricted stock rights, weighted-average grant date fair value (in dollars per share) ending balance $ 17.44 $ 12.74  
Share-based compensation, unrecognized compensation $ 89    
Share-based compensation, unrecognized compensation weighted-average period of recognition 1 year 7 months 24 days    
Total fair value of shares vested $ 123 $ 93 $ 92
Performance shares      
Restricted stock rights, weighted-average grant date fair value information      
Performance-vesting restricted stock rights granted without an accounting grant date (shares) 3,600    
Share-based compensation, unrecognized compensation $ 56    
Share-based compensation, unrecognized compensation weighted-average period of recognition 1 year 10 months 6 days    
Performance-vesting restricted stock rights for which the accounting grant date has not been set (shares) 5,100    
Employee Stock Option And Restricted Stock      
Restricted stock rights, weighted-average grant date fair value information      
Income tax benefit from stock option exercises and restricted stock rights $ 134 $ 109 $ 89