Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.10.0.1
Basis of Presentation (Details) - USD ($)
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Dec. 29, 2017
Jun. 23, 2016
General business information        
Dividends paid to noncontrolling interest $ 23,000,000 $ 22,000,000    
Line of credit facility, maximum borrowing capacity       $ 2,650,000,000
zulily, llc [Member]        
General business information        
Related party transaction, amounts of transaction $ 5,000,000 $ 5,000,000    
QVC-Japan        
General business information        
Investment owned, percent of net assets 60.00%      
Noncontrolling interest, ownership percentage by noncontrolling owners 40.00%      
CNR Home Shopping Co., Ltd.        
General business information        
Equity method investment, ownership percentage 49.00%      
HSN, Inc. [Member]        
General business information        
Related party transaction, amounts of transaction $ 14,000,000      
Remaining ownership interest acquired by parent     62.00%  
Revolving Credit Facility | QVC        
General business information        
Line of credit facility, maximum borrowing capacity       2,250,000,000
Revolving Credit Facility | Tranche One, Shared with Related Party        
General business information        
Line of credit facility, maximum borrowing capacity       $ 400,000,000
Line of credit facility, fair value of amount outstanding $ 0