| 2013 | 2012 | 2011 | ||||||||||||||||||
| Total Compensation Cost Recognized | Income Tax Benefit | Total Compensation Cost Recognized | Income Tax Benefit | Total Compensation Cost Recognized | Income Tax Benefit | |||||||||||||||
| (in millions) | ||||||||||||||||||||
| Employee stock options | $ | 43 | $ | 15 | $ | 45 | $ | 16 | $ | 44 | $ | 16 | ||||||||
| Employee restricted stock units | 88 | 32 | 84 | 30 | 83 | 30 | ||||||||||||||
| Employee performance shares and | ||||||||||||||||||||
| performance units | 86 | 31 | 26 | 9 | 14 | 5 | ||||||||||||||
| Total | $ | 217 | $ | 78 | $ | 155 | $ | 55 | $ | 141 | $ | 51 | ||||||||