Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.21.2
Subsequent Events (Details) - USD ($)
$ in Millions
Oct. 27, 2021
Sep. 30, 2021
Dec. 31, 2018
Subsequent Event [Line Items]      
Line of Credit Facility, Remaining Borrowing Capacity   $ 2,810  
Debt Instrument, Lower Range of Basis Spread on Variable Rate   0.25%  
Debt Instrument, Higher Range of Basis Spread on Variable Rate   0.75%  
zulily, llc [Member]      
Subsequent Event [Line Items]      
Long-term Line of Credit   $ 120  
London Interbank Offered Rate (LIBOR)      
Subsequent Event [Line Items]      
Debt Instrument, Lower Range of Basis Spread on Variable Rate   1.25%  
Debt Instrument, Higher Range of Basis Spread on Variable Rate   1.75%  
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Long-term Line of Credit $ 100    
Subsequent Event [Member] | Exchangeable Senior Debentures Due 2031      
Subsequent Event [Line Items]      
Estimated Tax Liability 105    
Subsequent Event [Member] | zulily, llc [Member]      
Subsequent Event [Line Items]      
Long-term Line of Credit 120    
Subsequent Event [Member] | Tranche One, Shared with Related Party      
Subsequent Event [Line Items]      
Long-term Line of Credit $ 220    
Subsequent Event [Member] | London Interbank Offered Rate (LIBOR)      
Subsequent Event [Line Items]      
Debt Instrument, Lower Range of Basis Spread on Variable Rate 1.25%    
Debt Instrument, Higher Range of Basis Spread on Variable Rate 1.625%    
Revolving Credit Facility [Member]      
Subsequent Event [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity     $ 2,950
Line of Credit Facility, Standby Letter of Credit     $ 450
Revolving Credit Facility [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 3,250    
Line of Credit Facility, Standby Letter of Credit 450    
Line of Credit Facility, Remaining Borrowing Capacity $ 3,010    
Debt Instrument, Lower Range of Basis Spread on Variable Rate 0.25%    
Debt Instrument, Higher Range of Basis Spread on Variable Rate 0.625%