Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v2.4.0.6
Document And Entity Information (USD $)
In Billions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Jun. 30, 2012
Jan. 31, 2013
Interactive Group [Member]
Series A [Member]
Jan. 31, 2013
Interactive Group [Member]
Series B [Member]
Jan. 31, 2013
Ventures Group [Member]
Series A [Member]
Jan. 31, 2013
Ventures Group [Member]
Series B [Member]
Entity Registrant Name Liberty Interactive Corporation          
Entity Central Index Key 0001355096          
Current Fiscal Year End Date --12-31          
Entity Filer Category Large Accelerated Filer          
Entity Common Stock, Shares Outstanding     512,746,754 28,921,353 35,337,916 1,444,308
Document Type 10-K          
Amendment Flag false          
Document Period End Date Dec. 31, 2012          
Document Fiscal Year Focus 2012          
Document Fiscal Period Focus FY          
Entity Well-known Seasoned Issuer Yes          
Entity Voluntary Filers No          
Entity Current Reporting Status Yes          
Entity Public Float   $ 9.1