Annual report pursuant to Section 13 and 15(d)

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

v2.4.1.9
Investments In Affiliates Accounted For Using The Equity Method (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method $ 1,633us-gaap_EquityMethodInvestments $ 1,237us-gaap_EquityMethodInvestments
HSN, Inc.    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
 
FTD    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Liberty Interactive common stock    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 375us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
343us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
Liberty Interactive common stock | HSN, Inc.    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
 
Equity Method Investment, Quoted Market Value 1,521us-gaap_EquityMethodInvestmentQuotedMarketValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
 
Investments in affiliates, accounted for using the equity method 328us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
293us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
Liberty Interactive common stock | Equity method investment, other    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 47us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
50us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
Liberty Ventures common stock    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 1,258us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
894us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
Liberty Ventures common stock | Equity method investment, other    
Equity Method Investments and Operating Activities Segment [Line Items]    
Investments in affiliates, accounted for using the equity method 389us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
417us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
Liberty Ventures common stock | Expedia    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 18.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
 
Equity Method Investment, Quoted Market Value 1,992us-gaap_EquityMethodInvestmentQuotedMarketValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
 
Investments in affiliates, accounted for using the equity method 514us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
477us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
Liberty Ventures common stock | FTD    
Equity Method Investments and Operating Activities Segment [Line Items]    
Percentage ownership 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Equity Method Investment, Quoted Market Value 355us-gaap_EquityMethodInvestmentQuotedMarketValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
 
Investments in affiliates, accounted for using the equity method $ 355us-gaap_EquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember