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Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.1.9
Stock-Based Compensation (Narrative) (Details) (USD $)
 9 Months Ended 12 Months Ended 3 Months Ended 0 Months Ended 1 Months Ended
Sep. 30, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2012
Feb. 27, 2014
Aug. 09, 2012
Apr. 12, 2012
Dec. 31, 2014
Jun. 24, 2010
Dec. 31, 2007
Dec. 31, 2000
Stock split, conversion ratio 0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of shares reserved for issuance Ìý Ìý Ìý 47,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized 47,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized Ìý Ìý Ìý Ìý 45,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized 3,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized 1,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Weighted average period of recognition related to unvested equity awards (in years) Ìý 2 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Ìý 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Total unrecognized compensation cost related to unvested Liberty equity awards Ìý $ 80,000,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized Ìý Ìý Ìý Ìý Ìý Ìý $ 80,000,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Ìý 91,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 76,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 339,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value Ìý 19,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue 16,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue 12,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Minimum Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Ìý 1 year 3 months 18 days Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Maximum Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Ìý 9 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost Ìý Ìý Ìý 17,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý 1,879,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		4,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		3,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		20,100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Weighted average grant-date fair value of options Ìý $ 12.04us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 8.26us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 8.44us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 7.15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Issuance of common stock upon exercise of stock options Ìý 6,016,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
WAEP exercised Ìý $ 15.84us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
WAEP of grants in the period Ìý $ 29.19us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý 24,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		30,607,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý 24,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Exercisable options Ìý 16,879,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 16,879,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Outstanding WAEP Ìý $ 17.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 17.98us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý $ 17.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Ìý $ 16.38us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý $ 16.38us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options outstanding Ìý 297,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 297,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options exercisable Ìý 220,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 220,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Liberty Interactive common stock | Common Class B Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý 646,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
WAEP of grants in the period Ìý $ 29.87us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý 1,044,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		432,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý 1,044,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Exercisable options Ìý 398,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 398,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Outstanding WAEP Ìý $ 24.78us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		$ 17.92us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý $ 24.78us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Ìý $ 16.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý $ 16.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options outstanding Ìý 5,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 5,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options exercisable Ìý 5,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 5,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stock split, conversion ratio Ìý Ìý Ìý Ìý Ìý 2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý
WAEP exercised Ìý $ 19.57us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost Ìý Ìý Ìý 4,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
WAEP of grants in the period Ìý $ 38.10us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Outstanding WAEP Ìý $ 19.10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 28.71us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý $ 19.10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Ìý $ 18.87us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý $ 18.87us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý
Liberty Ventures common stock | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý 20,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		7,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		36,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		905,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Weighted average grant-date fair value of options Ìý $ 16.55us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 57.37us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 27.29us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		$ 26.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Issuance of common stock upon exercise of stock options Ìý 398,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý 3,997,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		1,932,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý 3,997,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Exercisable options Ìý 3,094,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 3,094,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options outstanding Ìý 74,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 74,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options exercisable Ìý 58,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý 58,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Liberty Ventures common stock | Common Class B Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý 1,406,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
WAEP of grants in the period Ìý $ 37.63us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý 1,507,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		44,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý 1,507,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Exercisable options Ìý 101,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 101,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Outstanding WAEP Ìý $ 36.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		$ 23.35us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý $ 36.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Ìý $ 16.82us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý $ 16.82us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options outstanding Ìý 2,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 2,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Aggregate intrinsic value of options exercisable Ìý 2,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý Ìý 2,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Option Exchange Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Ìý Ìý Ìý $ 242,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_NonrecurringAdjustmentAxis
= linta_OptionExchangeMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
2012 Plan | Minimum Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Ìý 7 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Award vesting period Ìý 4 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
2012 Plan | Maximum Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Ìý 10 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Award vesting period Ìý 5 years Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Chief Executive Officer | Liberty Interactive common stock | Common Class B Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 646,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Weighted average grant-date fair value of options Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 10.50us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Chief Executive Officer | Liberty Ventures common stock | Common Class B Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Options granted Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 1,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý
Weighted average grant-date fair value of options Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 15.52us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý