Long-Term Debt (Debt Securities That Are Not Reported At Fair Value) (Details) $ in Millions	Jun. 30, 2017 USD ($)
Senior Debentures
Debt Instrument [Line Items]
Fair Value of Debt Securities That Are Not Reported at Fair Value	$ 866
QVC Senior Secured Notes
Debt Instrument [Line Items]
Fair Value of Debt Securities That Are Not Reported at Fair Value	$ 3,582

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.

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