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Annual report pursuant to Section 13 and 15(d)

Basis of Presentation Basis of Presentation (Details)

v2.4.1.9
Basis of Presentation Basis of Presentation (Details) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 12 Months Ended 0 Months Ended
Aug. 31, 2014
Dec. 31, 2014
item
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Aug. 27, 2014
Sep. 22, 2011
item
Dec. 11, 2012
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash distribution to parent from discontinued operation $ 350linta_CashDistributionToParentFromDiscontinuedOperation Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Gain on sale of subsidiary Ìý 75us-gaap_GainOrLossOnSaleOfStockInSubsidiary Ìý Ìý Ìý Ìý Ìý Ìý
Current assets Ìý Ìý 653us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent Ìý Ìý Ìý Ìý Ìý
Other assets Ìý Ìý 6,442us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets Ìý Ìý Ìý Ìý Ìý
Current liabilities Ìý Ìý 265us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent Ìý Ìý Ìý Ìý Ìý
Number of tracking stocks Ìý 2linta_Numberoftrackingstocks Ìý Ìý 2linta_Numberoftrackingstocks Ìý 3linta_Numberoftrackingstocks Ìý
Related Party Transaction, Amounts of Transaction Ìý 11us-gaap_RelatedPartyTransactionAmountsOfTransaction 15us-gaap_RelatedPartyTransactionAmountsOfTransaction 12us-gaap_RelatedPartyTransactionAmountsOfTransaction Ìý Ìý Ìý Ìý
HSN, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý
FTD Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý
Number of shares of stock received Ìý 10.2linta_Numberofsharesofstockreceivedinsaleofaconsolidatedsubsidiary
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý 10.2linta_Numberofsharesofstockreceivedinsaleofaconsolidatedsubsidiary
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý
Proceeds from Divestiture of Interest in Consolidated Subsidiaries Ìý 145us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý Ìý Ìý Ìý
Transfer to Investments Ìý Ìý Ìý Ìý 355us-gaap_TransferToInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý
TripAdvisor, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ownership Interest In Investee Ìý Ìý Ìý Ìý Ìý Ìý Ìý 22.00%linta_OwnershipInterestInInvestee
/ us-gaap_BusinessAcquisitionAxis
= linta_TripadvisorIncMember
Business Acquisition, Percentage of Voting Interests Acquired Ìý Ìý Ìý Ìý Ìý Ìý Ìý 57.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= linta_TripadvisorIncMember
Cash distribution to parent from discontinued operation 350linta_CashDistributionToParentFromDiscontinuedOperation
/ us-gaap_BusinessAcquisitionAxis
= linta_TripadvisorIncMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Current assets Ìý Ìý 25us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		Ìý Ìý Ìý Ìý Ìý
Current liabilities Ìý Ìý 22us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock | HSN, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý
Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Current assets Ìý Ìý 628us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý
Current liabilities Ìý Ìý 243us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý
Liberty Ventures common stock | FTD Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý
Trip Holdings Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Net debt Ìý Ìý Ìý Ìý Ìý 350linta_NetDebt
/ dei_LegalEntityAxis
= linta_TripHoldingsMember 		Ìý Ìý
Proceeds from Issuance of Debt 400us-gaap_ProceedsFromIssuanceOfDebt
/ dei_LegalEntityAxis
= linta_TripHoldingsMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Provide Commerce [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Schedule of Equity Method Investments [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Current assets Ìý Ìý 87us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Property & Equipment, net Ìý Ìý 32us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Goodwill Ìý Ìý 338us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Trademarks Ìý Ìý 22linta_DisposalGroupIncludingDiscontinuedOperationsTrademarks
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Other intangible assets, net Ìý Ìý 31linta_DisposalGroupIncludingDiscontinuedOperationsOtherIntangibleAssetsNet
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Other assets Ìý Ìý 13us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Current liabilities Ìý Ìý 91us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Net deferred tax liability Ìý Ìý 8us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredTaxLiabilitiesNoncurrent
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý
Other liabilities Ìý Ìý $ 9us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= linta_ProvideCommerceMember 		Ìý Ìý Ìý Ìý Ìý