Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Zulily Impairment (Details)

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Goodwill and Other Intangible Assets - Zulily Impairment (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Indefinite-lived Intangible Assets [Line Items]      
Impairments of goodwill   $ 440  
Accumulated goodwill impairment losses   440  
Zulily      
Indefinite-lived Intangible Assets [Line Items]      
Impairments of goodwill $ 440 440  
Accumulated goodwill impairment losses   440  
Zulily | Trade Names      
Indefinite-lived Intangible Assets [Line Items]      
Impairment of intangible assets $ 580    
HSN, Inc.      
Indefinite-lived Intangible Assets [Line Items]      
Impairments of goodwill     $ 0
HSN, Inc. | Trade Names      
Indefinite-lived Intangible Assets [Line Items]      
Impairment of intangible assets   $ 147 $ 30