Annual report [Section 13 and 15(d), not S-K Item 405]

Long-Term Debt (Narrative) (Details)

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Long-Term Debt (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 25, 2024
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Sep. 11, 2024
Oct. 27, 2021
Debt Instrument [Line Items]              
Repayments of Secured Debt $ 352,000,000   $ 775,000,000 $ 396,000,000 $ 536,000,000    
Gain (loss) on extinguishment of debt     0 $ 10,000,000 (6,000,000)    
Capital contributions received from QVC Group, Inc.     $ 277,000,000        
Line of credit facility interest rate at period end     6.06% 7.03%      
Debt weighted average interest rate     5.90% 5.70%      
Long-Term Debt, Maturity, Year One     $ 586,000,000        
Long-Term Debt, Maturity, Year Two     1,195,000,000        
Long-Term Debt, Maturity, Year Three     44,000,000        
Long-Term Debt, Maturity, Year Four     72,000,000        
Long-Term Debt, Maturity, Year Five     $ 605,000,000        
Debt weighted average interest rate     5.90% 5.70%      
zulily, llc              
Debt Instrument [Line Items]              
Common control transaction with Qurate Retail, Inc.       $ 57,000,000      
Liberty              
Debt Instrument [Line Items]              
Capital contributions received from QVC Group, Inc. 277,000,000   $ 277,000,000 0 $ 0    
Standby Letters of Credit              
Debt Instrument [Line Items]              
Letters of Credit Outstanding, Amount     108,000,000 $ 116,000,000      
4.375% Senior Secured Notes [Member]              
Debt Instrument [Line Items]              
Debt Instrument Principal Amount Denomination for Exchange           $ 1,000  
Debt Instrument, Amount Exchanged 428,000,000            
4.85% Senior Secured Notes [Member]              
Debt Instrument [Line Items]              
Repayments of Secured Debt   $ 177,000,000          
4.45% Senior Secured Notes [Member]              
Debt Instrument [Line Items]              
Repayments of Secured Debt   $ 15,000,000          
Revolving Credit Facility [Member]              
Debt Instrument [Line Items]              
Line of credit facility maximum borrowing capacity             $ 3,250,000,000
Line of credit facility remaining borrowing capacity     $ 1,586,000,000        
Revolving Credit Facility [Member] | Minimum              
Debt Instrument [Line Items]              
Debt Instrument, Basis Spread on Variable Rate     1.25%        
Revolving Credit Facility [Member] | Maximum              
Debt Instrument [Line Items]              
Debt Instrument, Basis Spread on Variable Rate     1.625%        
Revolving Credit Facility [Member] | ABR Rate | Minimum              
Debt Instrument [Line Items]              
Debt Instrument, Basis Spread on Variable Rate     0.25%        
Revolving Credit Facility [Member] | ABR Rate | Maximum              
Debt Instrument [Line Items]              
Debt Instrument, Basis Spread on Variable Rate     0.625%        
Alternative Currency Borrowings              
Debt Instrument [Line Items]              
Line of credit facility maximum borrowing capacity             0.50
6.875% Senior Secured Notes              
Debt Instrument [Line Items]              
Debt Instrument, Face Amount Offered           350  
Debt Instrument Principal Amount Denomination for Exchange           1,000  
Debt Instrument, Face Amount 605,000,000            
4.75% Senior Secured Notes              
Debt Instrument [Line Items]              
Debt Instrument Offered to Exchange in Cash per Principal           650  
Debt Instrument Principal Amount Denomination for Exchange           $ 1,000  
Debt Instrument, Amount Exchanged $ 531,000,000            
6.375% Senior Secured Notes [Member]              
Debt Instrument [Line Items]              
Debt instrument interest rate stated percentage     6.375%        
6.25% Senior Secured Notes [Member] [Member]              
Debt Instrument [Line Items]              
Debt instrument interest rate stated percentage     6.25%        
Standby Letters of Credit              
Debt Instrument [Line Items]              
Line of credit facility maximum borrowing capacity             $ 450,000,000