Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Narrative) (Details)

v3.7.0.1
Long-Term Debt (Narrative) (Details) - USD ($)
Mar. 31, 2017
Jun. 23, 2016
Jun. 15, 2016
Debt Instrument [Line Items]      
Line of Credit Facility, Remaining Borrowing Capacity $ 941,000,000    
Line of Credit Facility, Interest Rate at Period End 2.50%    
Line of Credit Facility, Maximum Borrowing Capacity   $ 2,650,000,000  
Derivative, Notional Amount     $ 125,000,000
Derivative Asset, Noncurrent $ 2,000,000    
Line of Credit Facility, Standby Letter of Credit   300,000,000  
Line of credit facility, uncommitted loan   1,500,000,000  
Debt Instrument, Lower Range of Basis Spread on Variable Rate 0.25%    
Debt Instrument, Higher Range of Basis Spread on Variable Rate 0.75%    
Debt, Weighted Average Interest Rate 4.10%    
Tranche One, Shared with Related Party | Senior secured credit facility      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   400,000,000  
Tranche One, Shared with Related Party | Standby Letters of Credit      
Debt Instrument [Line Items]      
Line of Credit Facility, Standby Letter of Credit   50,000,000  
QVC | Senior secured credit facility      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   2,250,000,000  
QVC Portion (Maturing on March 9, 2020) | Senior secured credit facility      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 140,000,000  
London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Debt Instrument, Lower Range of Basis Spread on Variable Rate 1.25%    
Debt Instrument, Higher Range of Basis Spread on Variable Rate 1.75%