Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
ft² in Millions, $ in Millions
 12 Months Ended
Oct. 05, 2018
USD ($)
ft²
Jul. 02, 2015
USD ($)
ft²
item
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Long-term Purchase Commitment [Line Items]          
Operating Leases, Rent Expense, Net     $ 80 $ 45 $ 46
Future minimum lease payments          
2019     72    
2020     61    
2021     52    
2022     42    
2023     36    
Thereafter     $ 115    
QVC | West Coast Distribution Center Lease          
Long-term Purchase Commitment [Line Items]          
Area of leased building (in square feet) | ft²   1.0      
Initial term of lease (in years)   15 years      
Operating Leases, Rent Expense   $ 6      
Operating Lease, Rent Expense In Final Year Of Initial Term   $ 8      
Maximum number of terms eligible for extension | item   2      
Lessee, Operating Lease, Renewal Term   10 years      
Initial Payment to Purchase Land   $ 10      
Subsequent Annual Payments to Purchase Land   $ 12      
Term of Annual Payments for Land Purchase   13 years      
QVC | ECDC Lease          
Long-term Purchase Commitment [Line Items]          
Area of leased building (in square feet) | ft² 1.7        
Initial term of lease (in years) 15 years        
Lessee, Operating Lease, Renewal Term 5 years        
Lessee operating lease, final renewal term 4 years        
QVC | ECDC Lease | Minimum          
Long-term Purchase Commitment [Line Items]          
Operating Leases, Rent Expense $ 10        
QVC | ECDC Lease | Maximum          
Long-term Purchase Commitment [Line Items]          
Operating Leases, Rent Expense $ 14