Stock-Based Compensation Stock-Based Compensation	6 Months Ended
Stock-Based Compensation Stock-Based Compensation	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation Compensation expense related to stock options for the three and six months ended June 30, 2014 totaled $24 million and $50 million, respectively, compared to $22 million and $48 million for the three and six months ended June 30, 2013, respectively. Compensation expense related to restricted stock awards for the three and six months ended June 30, 2014 totaled $18 million and $27 million, respectively, compared to $10 million and $18 million for the three and six months ended June 30, 2013, respectively. During the three months ended June 30, 2014, the Company granted 4 million stock options with a weighted average fair value of $11.26 and a weighted average exercise price of $74.29. The Company had 32 million stock options outstanding as of June 30, 2014 with a weighted average exercise price of $46.49 and a weighted average contractual term of 4.46 years.

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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