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Share-Based Compensation (Summary of Share-Based Compensation Expense) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2014
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Mar. 31, 2013
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| Share-Based Compensation [Abstract] | ||
| Share-based compensation expense before income taxes | $ 14 | $ 9 |
| Income tax benefit | (6) | (4) |
| Share-based compensation expense after income taxes | $ 8 | $ 5 |
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- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of other income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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