Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | $ 14,345 | $ 14,365 |
| Acquisitions | 24 | |
| Broadband Spin-Off | (46) | |
| Other | 2 | |
| Goodwill, Ending Balance | 14,345 | 14,345 |
| SIRIUS XM | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | $ 14,165 | $ 14,165 |
| Acquisitions | ||
| Broadband Spin-Off | ||
| Other | ||
| Goodwill, Ending Balance | $ 14,165 | $ 14,165 |
| Corporate And Other | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | 180 | 200 |
| Acquisitions | 24 | |
| Broadband Spin-Off | (46) | |
| Other | 2 | |
| Goodwill, Ending Balance | $ 180 | $ 180 |
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- Definition The amount of decrease of an asset representing the future economic benefits arising from the spin-off of a company. No definition available.
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- 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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- 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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- Definition Amount of other (increase) decrease of an asset representing the 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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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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