Stock-Based Compensation

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

We issue stock-based incentive awards to our eligible employees and Directors under the 2002 Employee Stock Incentive Plan and a Director Deferred Stock Ownership Plan. The 2002 Employee Stock Incentive Plan permits the granting of nonqualified stock options, stock appreciation rights, performance stock, restricted stock and other stock-based awards.

Stock-based compensation for the three months ended March 31 is as follows:



(in millions)	2015		2014
Stock option expense	$	6	$	3
Restricted stock and unit awards expense	12		14
Total stock-based compensation expense	$	18	$	17

Total unrecognized compensation expense related to unvested stock option awards and unvested restricted stock unit awards as of March 31, 2015 was $8 million and $57 million, respectively, which is expected to be recognized over a weighted average period of 1.8 years and 1.5 years, respectively.

- 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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