Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Other Activity) (Details)

v2.4.1.9
Investments In Affiliates Accounted For Using The Equity Method (Other Activity) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
0 Months Ended 3 Months Ended
Dec. 31, 2014
Mar. 31, 2015
FTD    
Proceeds from Divestiture of Interest in Consolidated Subsidiaries $ 145us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Equity Method Investment, Ownership Percentage 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Number of shares of stock received 10.2linta_Numberofsharesofstockreceivedinsaleofaconsolidatedsubsidiary
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Liberty Interactive common stock | HSN, Inc.    
Equity Method Investment, Dividends or Distributions   $ 200us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
Dividend Received Per Share From Equity Method Affiliate   $ 10linta_Linta_DividendReceivedPerShareFromEquityMethodAffiliate
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
Equity Method Investment, Ownership Percentage   38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
Liberty Ventures common stock | Expedia    
Equity Method Investment, Ownership Percentage   18.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
Liberty Ventures common stock | FTD    
Equity Method Investment, Ownership Percentage   35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember