Goodwill and Other Intangible Assets (Intangibles Not Subject to Amortization) (Details) - USD ($) $ in Millions |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| SIRIUS XM | |||
| Indefinite-lived Intangible Assets [Line Items] | |||
| Indefinite-Lived Trade Names | $ 931 | $ 930 | |
| Braves Holdings | |||
| Indefinite-lived Intangible Assets [Line Items] | |||
| Indefinite-Lived Franchise Rights | $ 143 | $ 143 | $ 143 |
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through a franchise arrangement having an indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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