Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Narrative) (Details)

v3.7.0.1
Long-Term Debt (Narrative) (Details) - USD ($)
Jun. 30, 2017
Jun. 30, 2016
Jun. 23, 2016
Jun. 15, 2016
Debt Instrument [Line Items]        
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  
Line of Credit Facility, Remaining Borrowing Capacity $ 1,029,000,000      
Debt Instrument, Lower Range of Basis Spread on Variable Rate   0.25%    
Debt Instrument, Higher Range of Basis Spread on Variable Rate   0.75%    
Line of Credit Facility, Interest Rate at Period End 2.70%      
Debt, Weighted Average Interest Rate 4.20%      
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%    
Revolving Credit Facility | Tranche One, Shared with Related Party        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity     400,000,000  
Revolving Credit Facility | QVC        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity     2,250,000,000.00  
Revolving Credit Facility | QVC Portion Maturing on March 9, 2020 [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity     140,000,000  
Standby Letters of Credit | Tranche One, Shared with Related Party        
Debt Instrument [Line Items]        
Line of Credit Facility, Standby Letter of Credit     $ 50,000,000