v3.6.0.2
Document And Entity Information - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2016
Jan. 31, 2017
Jun. 30, 2016
Entity Registrant Name Liberty Interactive Corp    
Entity Central Index Key 0001355096    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 11.2
QVC Group Common Stock | Common Class A      
Entity Common Stock, Shares Outstanding   425,210,801  
QVC Group Common Stock | Common Class B      
Entity Common Stock, Shares Outstanding   29,358,638  
Liberty Ventures common stock | Common Class A      
Entity Common Stock, Shares Outstanding   81,150,662  
Liberty Ventures common stock | Common Class B      
Entity Common Stock, Shares Outstanding   4,271,867