Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.21.1
Basis of Presentation (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 30, 2020
Dec. 31, 2019
General business information          
Dividends paid to noncontrolling interest $ 16 $ 15      
Note receivable - related party (note 1) $ 1,825   $ 1,825 $ 1,800  
Receivable with Imputed Interest, Effective Yield (Interest Rate) 0.48%        
Interest Income, Related Party $ 2        
QVC to CBI Allocated Expenses [Member] | Cornerstone Brands Inc [Member]          
General business information          
Related Party Transaction, Expenses from Transactions with Related Party 5 6      
CBI to QVC allocated expenses [Member] | Cornerstone Brands Inc [Member]          
General business information          
Related Party Transaction, Expenses from Transactions with Related Party 1 1      
Revolving Credit Facility [Member]          
General business information          
Line of Credit Facility, Maximum Borrowing Capacity         $ 2,950
Revolving Credit Facility [Member] | Tranche One, Shared with Related Party          
General business information          
Line of Credit Facility, Maximum Borrowing Capacity $ 400       $ 400
QVC-Japan          
General business information          
Investment Owned, Percent of Net Assets 60.00%        
QVC-Japan | Mitsui [Domain]          
General business information          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 40.00%        
CNR Home Shopping Co., Ltd.          
General business information          
Equity Method Investment, Ownership Percentage 49.00%        
zulily, llc [Member]          
General business information          
Long-term Line of Credit $ 75        
zulily, llc [Member] | QVC to Zulily allocated expenses [Member]          
General business information          
Related Party Transaction, Amounts of Transaction 2 2      
zulily, llc [Member] | Zulily to QVC allocated expenses [Member]          
General business information          
Related Party Transaction, Amounts of Transaction 2 $ 3      
zulily, llc [Member] | QVC to Zulily loan [Member]          
General business information          
Line of Credit Facility, Maximum Borrowing Capacity $ 100        
Line of Credit Facility, Interest Rate Description variable interest rate equal to the LIBOR rate plus an applicable margin rate