v2.4.0.6
Share-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Share-Based Compensation  
Recognized Share-Based Compensation Expense
Recognized Share-Based Compensation Expense
 Three Months Ended
 March 31
(in millions)20132012
Stock options$ 32$29
Restricted share units  38 35
Employee stock purchase plans  6 5
Total$ 76$69