Quarterly report pursuant to Section 13 or 15(d)

Debt (Debt Securities That Are Not Reported At Fair Value) (Details)

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Debt (Debt Securities That Are Not Reported At Fair Value) (Details)
$ in Millions
Mar. 31, 2016
USD ($)
Senior Debentures  
Debt Instrument [Line Items]  
Fair Value of Debt Securities That Are Not Reported at Fair Value $ 841
QVC Senior Secured Notes  
Debt Instrument [Line Items]  
Fair Value of Debt Securities That Are Not Reported at Fair Value $ 3,496