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Goodwill and Intangible Assets - Intangible Assets (Details) (USD $)
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3 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||
| Gross carrying amount of intangible assets with definite lives | $ 3,087,000,000 | $ 3,100,000,000 | |
| Accumulated amortization of intangible assets with definite lives | 1,300,000,000 | 1,200,000,000 | |
| Carrying amount of intangible assets with indefinite lives | 1,515,000,000 | 1,500,000,000 | |
| Amortization expense | $ 76,000,000 | $ 76,000,000 | |
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- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Carrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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