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