Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Narrative (Details)

v3.21.1
Long-Term Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Dec. 31, 2019
Dec. 31, 2018
Long-term debt      
Outstanding principal $ 6,725    
QVC | Standby Letters of Credit      
Long-term debt      
Maximum borrowing capacity   $ 450  
QVC | Amendment No. 4 QVC Bank Credit Facility      
Long-term debt      
Maximum borrowing capacity   2,950  
QVC | Amendment No. 4 QVC Bank Credit Facility | Alternate Base Rate      
Long-term debt      
Debt Instrument, Description of Variable Rate Basis alternate base    
QVC | Amendment No. 4 QVC Bank Credit Facility | Alternate Base Rate | Minimum      
Long-term debt      
Debt Instrument, Basis Spread on Variable Rate 0.25%    
QVC | Amendment No. 4 QVC Bank Credit Facility | Alternate Base Rate | Maximum      
Long-term debt      
Debt Instrument, Basis Spread on Variable Rate 0.75%    
QVC | Amendment No. 4 QVC Bank Credit Facility | LIBOR      
Long-term debt      
Debt Instrument, Description of Variable Rate Basis LIBOR    
QVC | Amendment No. 4 QVC Bank Credit Facility | LIBOR | Minimum      
Long-term debt      
Debt Instrument, Basis Spread on Variable Rate 1.25%    
QVC | Amendment No. 4 QVC Bank Credit Facility | LIBOR | Maximum      
Long-term debt      
Debt Instrument, Basis Spread on Variable Rate 1.75%    
QVC | Uncommitted Incremental Revolving Loan Commitments or Incremental Term Loans      
Long-term debt      
Maximum borrowing capacity   1,500  
QVC | Portion of Credit Facility Available to QVC or zulily      
Long-term debt      
Maximum borrowing capacity   400  
QVC | Portion of Credit Facility Available to QVC or zulily | Maximum      
Long-term debt      
Maximum borrowing capacity     $ 50
QVC | Portion of Credit Facility Available Only to QVC      
Long-term debt      
Maximum borrowing capacity   $ 2,550  
QVC | QVC Bank Credit Facilities      
Long-term debt      
Outstanding principal $ 75    
Zulily | Amendment No. 4 QVC Bank Credit Facility      
Long-term debt      
Remaining borrowing capacity 2,853    
Zulily | Credit Facility Portion Available to Zulily And Letters Of Credit      
Long-term debt      
Remaining borrowing capacity 400    
Zulily | QVC Bank Credit Facilities      
Long-term debt      
Outstanding principal $ 75    
Interest rate (as a percent) 1.60%