Basis of Presentation (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Qurate Retail, TripCo, Liberty Broadband, Expedia Holdings and GCI Liberty | ||
| Entity Information [Line Items] | ||
| Related Party Transaction, Amounts of Transaction | $ 8 | $ 5 |
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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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| X | ||||||||||
- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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