Intangible Assets Intangible Assets (Goodwill) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | ||||
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Mar. 31, 2014
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Dec. 31, 2013
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Goodwill [Line Items] | |||||
Goodwill | $ 14,389 | $ 14,365 | |||
Goodwill, Acquired During Period | 24 | [1] | |||
SIRIUS XM
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Goodwill [Line Items] | |||||
Goodwill | 14,164 | 14,165 | |||
Goodwill, Acquired During Period | (1) | [1] | |||
Other Goodwill
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Goodwill [Line Items] | |||||
Goodwill | 225 | 200 | |||
Goodwill, Acquired During Period | $ 25 | [1] | |||
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X | ||||||||||
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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