Number of Shares (in thousands) | Weighted Average Exercise Price (per share) | Weighted Average Remaining Contractual Term (years) | Aggregate Intrinsic Value (in thousands) | ||||||
Outstanding, December 31, 2012 | 33,359 | $ | 39.70 | ||||||
Granted | 5,758 | $ | 47.68 | ||||||
Exercised | (13,012 | ) | $ | 36.31 | |||||
Forfeited | (253 | ) | $ | 50.10 | |||||
Cancelled | (4,281 | ) | $ | 50.64 | |||||
Outstanding, December 31, 2013 | 21,571 | $ | 41.58 | 4.14 | $ | 505,136 | |||
Exercisable, December 31, 2013 | 11,765 | $ | 35.02 | 2.95 | $ | 352,427 | |||