Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies (Details)

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Commitments And Contingencies (Details)
ft² in Millions
 12 Months Ended
Jul. 02, 2015
USD ($)
ft²
item
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Long-term Purchase Commitment [Line Items]        
Operating Leases, Rent Expense, Net   $ 45,000,000 $ 46,000,000 $ 39,000,000
2019   78,000,000    
2020   70,000,000    
2020   58,000,000    
2021   51,000,000    
2022   42,000,000    
Thereafter   201,000,000    
QVC | West Coast Distribution Center Lease        
Long-term Purchase Commitment [Line Items]        
Area of leased building (in square feet) | ft² 1      
Lessee, Operating Lease, Term of Contract 15 years      
Operating Leases, Rent Expense $ 6,000,000      
Operating Lease, Rent Expense In Final Year Of Initial Term $ 8,000,000      
Maximum number of terms eligible for extension | item 2      
Lessee, Operating Lease, Renewal Term 10 years      
Initial Payment to Purchase Land $ 10,000,000      
Subsequent Annual Payments to Purchase Land $ 12,000,000      
Term of Annual Payments for Land Purchase 13 years      
Capital Lease Obligations Incurred   $ 0 $ 89,000,000