Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Narrative) (Details)

v2.4.1.9
Long-Term Debt (Narrative) (Details) (USD $)
 9 Months Ended 12 Months Ended 3 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended
Sep. 30, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Jan. 31, 2015
Feb. 27, 2014
Aug. 09, 2012
Apr. 12, 2012
Feb. 28, 2015
Mar. 31, 2015
May 22, 2012
Mar. 18, 2014
Aug. 21, 2014
Mar. 31, 2013
Outstanding principal   $ 7,966,000,000us-gaap_DebtInstrumentCarryingAmount                          
Debt, Current   946,000,000us-gaap_DebtCurrent 909,000,000us-gaap_DebtCurrent                        
Loss on extinguishment of debt   (48,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt (57,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt                        
Stock split, conversion ratio 0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1                            
Repayments of Long-term Debt   3,749,000,000us-gaap_RepaymentsOfLongTermDebt 5,415,000,000us-gaap_RepaymentsOfLongTermDebt 1,500,000,000us-gaap_RepaymentsOfLongTermDebt                      
Senior secured note [Member]                              
Debt Instrument, Unamortized Discount   5,000,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= linta_SeniorsecurednoteMember 		5,000,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= linta_SeniorsecurednoteMember 		                       
Motorola Mobility [Member]                              
Business Acquisition, Share Price                       $ 40us-gaap_BusinessAcquisitionSharePrice
/ us-gaap_CounterpartyNameAxis
= linta_MotorolaMobilityMember 		     
8.5% Senior Debentures Due 2029                              
Interest rate (as a percent)   8.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A85SeniorDebenturesDue2029Member 		                         
8.25% Senior Debentures Due 2030                              
Interest rate (as a percent)   8.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A825SeniorDebenturesDue2030Member 		                         
1% Exchangeable Senior Debentures due 2043                              
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member 		                         
Interest rate (as a percent)   1.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member 		                         
Exchangeable Senior Debentures remaining principal outstanding upon partial redemption   100,000,000linta_ExchangeableSeniorDebenturesRemainingPrincipalOutstandingUponPartialRedemption
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member 		                         
1% Exchangeable Senior Debentures due 2043 | Exchangeable Senior Debentures                              
Debt, Current   910,000,000us-gaap_DebtCurrent
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member
/ us-gaap_LongtermDebtTypeAxis
= linta_ExchangeableSeniorDebenturesMember 		                         
1% Exchangeable Senior Debentures due 2043 | HSN, Inc.                              
Debt Instrument, Convertible, Conversion Ratio   13.4580us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_HsnIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member 		                         
QVC 7.5% Senior Secured Notes Due 2019                              
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc75SeniorSecuredNotesDue2019Member 		                         
Interest rate (as a percent)   7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc75SeniorSecuredNotesDue2019Member 		  7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc75SeniorSecuredNotesDue2019Member 		                     
Debt issuance price as percent of par   98.278%linta_Debtissuancepriceasapercentofpar
/ us-gaap_DebtInstrumentAxis
= linta_Qvc75SeniorSecuredNotesDue2019Member 		                         
QVC 3.125% Senior Secured Notes Due 2019                              
Principal amount                         400,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_QVC3.125SeniorSecuredNotesDue2019Member 		   
Interest rate (as a percent)   3.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_QVC3.125SeniorSecuredNotesDue2019Member 		                         
Debt issuance price as percent of par                         99.828%linta_Debtissuancepriceasapercentofpar
/ us-gaap_DebtInstrumentAxis
= linta_QVC3.125SeniorSecuredNotesDue2019Member 		   
QVC 7.375% Senior Secured Notes Due 2020                              
Principal amount   500,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc7375SeniorSecuredNotesDue2020Member 		                         
Interest rate (as a percent)   7.375%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc7375SeniorSecuredNotesDue2020Member 		                         
QVC 5.125% Senior Secured Notes 2022                              
Principal amount   500,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5125SeniorSecuredNotes2022Member 		                         
Interest rate (as a percent)   5.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5125SeniorSecuredNotes2022Member 		                         
QVC 4.375% Senior Secured Notes due 2023                              
Principal amount   750,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4375SeniorSecuredNotesDue2023Member 		                         
Interest rate (as a percent)   4.375%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4375SeniorSecuredNotesDue2023Member 		                         
QVC 4.850% Senior Secured Notes due 2024                              
Principal amount                         600,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_QVC4.850SeniorSecuredNotesdue2024Member 		   
Interest rate (as a percent)   4.85%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_QVC4.850SeniorSecuredNotesdue2024Member 		                         
Debt issuance price as percent of par                         99.927%linta_Debtissuancepriceasapercentofpar
/ us-gaap_DebtInstrumentAxis
= linta_QVC4.850SeniorSecuredNotesdue2024Member 		   
QVC 4.45% Senior Secured Notes due 2025 [Member]                              
Principal amount                           600,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4.45SeniorSecuredNotesDue2025Member 		 
Interest rate (as a percent)   4.45%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4.45SeniorSecuredNotesDue2025Member 		                         
Debt issuance price as percent of par                           99.86%linta_Debtissuancepriceasapercentofpar
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4.45SeniorSecuredNotesDue2025Member 		 
QVC 5.45% Senior Secured Notes due 2034 [Member]                              
Principal amount                           400,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5.45SeniorSecuredNotesDue2034Member 		 
Interest rate (as a percent)   5.45%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5.45SeniorSecuredNotesDue2034Member 		                         
Debt issuance price as percent of par                           99.784%linta_Debtissuancepriceasapercentofpar
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5.45SeniorSecuredNotesDue2034Member 		 
QVC 5.95% Senior Secured Notes due 2043                              
Principal amount   300,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc595SeniorSecuredNotesDue2043Member 		                         
Interest rate (as a percent)   5.95%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_Qvc595SeniorSecuredNotesDue2043Member 		                         
QVC Bank Credit Facilities                              
Maximum Borrowing Capacity   2,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember 		                         
Standby letters of credit   250,000,000linta_StandbyLettersOfCredit
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember 		                         
Incremental borrowing capacity   1,000,000,000linta_IncrementalBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember 		                         
Remaining borrowing capacity   1,500,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember 		                         
Debt Instrument, Interest Rate, Effective Percentage   2.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember 		                         
4% Exchangeable Senior Debentures Due 2029                              
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_A4ExchangeableSeniorDebenturesDue2029Member 		                         
Interest rate (as a percent)   4.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A4ExchangeableSeniorDebenturesDue2029Member 		                         
4% Exchangeable Senior Debentures Due 2029 | Sprint [Member]                              
Debt Instrument, Convertible, Conversion Ratio   3.2265us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_SprintMember
/ us-gaap_DebtInstrumentAxis
= linta_A4ExchangeableSeniorDebenturesDue2029Member 		                         
4% Exchangeable Senior Debentures Due 2029 | Century Link, Inc. [Member]                              
Debt Instrument, Convertible, Conversion Ratio   0.7860us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_CenturyLinkIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A4ExchangeableSeniorDebenturesDue2029Member 		                         
3.75% Exchangeable Senior Debentures Due 2030                              
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_A375ExchangeableSeniorDebenturesDue2030Member 		                         
Interest rate (as a percent)   3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A375ExchangeableSeniorDebenturesDue2030Member 		                         
3.75% Exchangeable Senior Debentures Due 2030 | Sprint [Member]                              
Debt Instrument, Convertible, Conversion Ratio   2.3578us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_SprintMember
/ us-gaap_DebtInstrumentAxis
= linta_A375ExchangeableSeniorDebenturesDue2030Member 		                         
3.75% Exchangeable Senior Debentures Due 2030 | Century Link, Inc. [Member]                              
Debt Instrument, Convertible, Conversion Ratio   0.5746us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_CenturyLinkIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A375ExchangeableSeniorDebenturesDue2030Member 		                         
3.5% Exchangeable Senior Debentures Due 2031                              
Repayments of Debt         111,000,000us-gaap_RepaymentsOfDebt
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                   
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
Interest rate (as a percent)   3.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
3.5% Exchangeable Senior Debentures Due 2031 | Motorola Solutions [Member]                              
Debt Instrument, Convertible, Conversion Ratio   5.2598us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_MotorolaSolutionsMember
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
Stock split, conversion ratio   7us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_MotorolaSolutionsMember
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
3.5% Exchangeable Senior Debentures Due 2031 | Motorola Mobility [Member]                              
Debt Instrument, Convertible, Conversion Ratio   4.6024us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_MotorolaMobilityMember
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
Stock split, conversion ratio   8us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_MotorolaMobilityMember
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member 		                         
0.75% Exchangeable Senior Debentures due 2043                              
Principal amount   1,000,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member 		                         
Interest rate (as a percent)   0.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member 		                         
0.75% Exchangeable Senior Debentures due 2043 | Time Warner Cable Inc                              
Debt Instrument, Convertible, Conversion Ratio   6.3040us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_TimeWarnerCableIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member 		                         
0.75% Exchangeable Senior Debentures due 2043 | Time Warner Inc                              
Debt Instrument, Convertible, Conversion Ratio   5.1635us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_TimeWarnerIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member 		                         
0.75% Exchangeable Senior Debentures due 2043 | Time Inc                              
Debt Instrument, Convertible, Conversion Ratio   0.6454us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_CounterpartyNameAxis
= linta_TimeIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member 		                         
principal repayment per debenture [Member] | 3.5% Exchangeable Senior Debentures Due 2031                              
Repayments of Debt         184.096us-gaap_RepaymentsOfDebt
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member
/ us-gaap_ExtinguishmentOfDebtAxis
= linta_PrincipalRepaymentPerDebentureMember 		                   
Adjusted face amount per debenture [Member] | 3.5% Exchangeable Senior Debentures Due 2031                              
Debt instrument, face amount per debenture   592linta_DebtInstrumentFaceAmountPerDebenture
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member
/ us-gaap_ExtinguishmentOfDebtAxis
= linta_AdjustedfaceamountperdebentureMember 		                         
HSN, Inc.                              
Quarterly dividend received per share from equity method affiliate   0.18linta_QuarterlyDividendReceivedPerShareFromEquityMethodAffiliate
/ dei_LegalEntityAxis
= linta_HsnIncMember 		                         
Special dividend received per share from equity method affiliate           10linta_SpecialDividendReceivedPerShareFromEquityMethodAffiliate
/ dei_LegalEntityAxis
= linta_HsnIncMember 		                 
QVC | Interest Rate Swap [Member]                              
Derivative, Notional Amount                             3,100,000,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_StatementBusinessSegmentsAxis
= linta_QvcMember
Minimum | 1% Exchangeable Senior Debentures due 2043 | HSN, Inc.                              
Conversion obligation average trading price (as a percent)   130.00%linta_DebtInstrumentConversionObligationAverageTradingPriceAsPercentageOfAverageConversionValue
/ us-gaap_CounterpartyNameAxis
= linta_HsnIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		                         
Minimum | LIBOR | QVC Bank Credit Facilities                              
Debt Instrument, Basis Spread on Variable Rate   1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		                         
Minimum | Alternate Base Rate [Member] | QVC Bank Credit Facilities                              
Debt Instrument, Basis Spread on Variable Rate   0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= linta_AlternateBaseRateMember 		                         
Maximum | 1% Exchangeable Senior Debentures due 2043 | HSN, Inc.                              
Conversion obligation average trading price (as a percent)   98.00%linta_DebtInstrumentConversionObligationAverageTradingPriceAsPercentageOfAverageConversionValue
/ us-gaap_CounterpartyNameAxis
= linta_HsnIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		                         
Maximum | LIBOR | QVC Bank Credit Facilities                              
Debt Instrument, Basis Spread on Variable Rate   2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		                         
Maximum | Alternate Base Rate [Member] | QVC Bank Credit Facilities                              
Debt Instrument, Basis Spread on Variable Rate   1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= linta_AlternateBaseRateMember 		                         
Liberty Interactive common stock                              
Outstanding principal   5,824,000,000us-gaap_DebtInstrumentCarryingAmount
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Debt, Current   9,000,000us-gaap_DebtCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		39,000,000us-gaap_DebtCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                       
Loss on extinguishment of debt   (48,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		(57,000,000)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                       
Repayments of Long-term Debt   3,563,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		3,052,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		1,385,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                     
Liberty Interactive common stock | 8.5% Senior Debentures Due 2029                              
Outstanding principal   287,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A85SeniorDebenturesDue2029Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | 8.25% Senior Debentures Due 2030                              
Outstanding principal   504,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A825SeniorDebenturesDue2030Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | 1% Exchangeable Senior Debentures due 2043                              
Outstanding principal   400,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 3.125% Senior Secured Notes Due 2019                              
Outstanding principal   400,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_QVC3.125SeniorSecuredNotesDue2019Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 7.375% Senior Secured Notes Due 2020                              
Outstanding principal   500,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc7375SeniorSecuredNotesDue2020Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 5.125% Senior Secured Notes 2022                              
Outstanding principal   500,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5125SeniorSecuredNotes2022Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 4.375% Senior Secured Notes due 2023                              
Outstanding principal   750,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4375SeniorSecuredNotesDue2023Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 4.850% Senior Secured Notes due 2024                              
Outstanding principal   600,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_QVC4.850SeniorSecuredNotesdue2024Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 4.45% Senior Secured Notes due 2025 [Member]                              
Outstanding principal   600,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc4.45SeniorSecuredNotesDue2025Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 5.45% Senior Secured Notes due 2034 [Member]                              
Outstanding principal   400,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc5.45SeniorSecuredNotesDue2034Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC 5.95% Senior Secured Notes due 2043                              
Outstanding principal   300,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_Qvc595SeniorSecuredNotesDue2043Member
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Interactive common stock | QVC Bank Credit Facilities                              
Outstanding principal   508,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_QvcBankCreditFacilitiesMember
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		                         
Liberty Ventures common stock                              
Outstanding principal   2,142,000,000us-gaap_DebtInstrumentCarryingAmount
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                         
Debt, Current   937,000,000us-gaap_DebtCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		870,000,000us-gaap_DebtCurrent
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                       
Stock split, conversion ratio             2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		           
Repayments of Long-term Debt   186,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		2,363,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		115,000,000us-gaap_RepaymentsOfLongTermDebt
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                     
Liberty Ventures common stock | 4% Exchangeable Senior Debentures Due 2029                              
Outstanding principal   438,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A4ExchangeableSeniorDebenturesDue2029Member
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                         
Liberty Ventures common stock | 3.75% Exchangeable Senior Debentures Due 2030                              
Outstanding principal   438,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A375ExchangeableSeniorDebenturesDue2030Member
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                         
Liberty Ventures common stock | 3.5% Exchangeable Senior Debentures Due 2031                              
Outstanding principal   355,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A35ExchangeableSeniorDebenturesDue2031Member
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                         
Liberty Ventures common stock | 0.75% Exchangeable Senior Debentures due 2043                              
Outstanding principal   850,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= linta_A075ExchangeableSeniorDebenturesDue2043Member
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		                         
Forecast | HSN, Inc.                              
Proceeds from Equity Method Investment, Dividends or Distributions                   200,000,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_CounterpartyNameAxis
= linta_HsnIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember 		         
Forecast | 1% Exchangeable Senior Debentures due 2043 | HSN, Inc.                              
Repayments of Debt                     $ 54,000,000us-gaap_RepaymentsOfDebt
/ us-gaap_CounterpartyNameAxis
= linta_HsnIncMember
/ us-gaap_DebtInstrumentAxis
= linta_A1ExchangeableSeniorDebenturesdue2043Member
/ us-gaap_StatementScenarioAxis
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