XML 13 R54.htm IDEA: XBRL DOCUMENT v3.2.0.727
Share-Based Compensation Other Share-Based Compensation Data (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense, before tax $ 86 $ 83 $ 211 $ 188
Share-based compensation expense, net of tax effects 76 71 177 157
Income tax benefit realized from share-based award exercises 36 $ 24 174 $ 143
Unrecognized compensation expense related to share awards $ 551   $ 551  
Weighted-average years to recognize compensation expense     1 year 4 months 24 days  
Stock Options and SARs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average grant date fair value of shares granted, per share $ 21 $ 19 $ 23 $ 22
Total intrinsic value of stock options and SARs exercised $ 107 $ 74 $ 328 $ 286
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average grant date fair value (per share) $ 118 $ 80 $ 109 $ 70
Total fair value of restricted shares vested $ 12 $ 9 $ 407 $ 423