Share-Based Compensation	3 Months Ended
Mar. 31, 2014
Share-Based Compensation	6. Share-Based Compensation The Company recognized $15 million and $14 million of share-based compensation expense during the three months ended March 31, 2014 and 2013, respectively. The Company’s annual grant of share-based awards generally occurs in the first quarter. During the three months ended March 31, 2014, the Company granted 1.3 million stock options and 0.4 million restricted stock units at weighted-average estimated fair values of $18.77 and $56.98, respectively. During the three months ended March 31, 2013, the Company granted 1.8 million stock options and 0.8 million restricted stock units at weighted-average estimated fair values of $12.58 and $40.37, respectively. During each of the three-month periods ended March 31, 2014 and 2013, stock options to purchase 0.5 million shares were exercised.

Share-Based Compensation

3 Months Ended

Mar. 31, 2014

6. Share-Based Compensation

The Company recognized $15 million and $14 million of share-based compensation expense during the three months ended March 31, 2014 and 2013, respectively. The Company’s annual grant of share-based awards generally occurs in the first quarter. During the three months ended March 31, 2014, the Company granted 1.3 million stock options and 0.4 million restricted stock units at weighted-average estimated fair values of $18.77 and $56.98, respectively. During the three months ended March 31, 2013, the Company granted 1.8 million stock options and 0.8 million restricted stock units at weighted-average estimated fair values of $12.58 and $40.37, respectively. During each of the three-month periods ended March 31, 2014 and 2013, stock options to purchase 0.5 million shares were exercised.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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