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Quarterly report pursuant to Section 13 or 15(d)

Tracking Stock (Details)

v2.4.1.9
Tracking Stock (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 0 Months Ended
Oct. 13, 2014
Apr. 11, 2014
Mar. 31, 2015
item
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Oct. 20, 2014
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of tracking stocks Ìý Ìý 2linta_Numberoftrackingstocks Ìý Ìý Ìý Ìý
Cash and cash equivalents Ìý Ìý $ 2,350us-gaap_CashAndCashEquivalentsAtCarryingValue $ 2,306us-gaap_CashAndCashEquivalentsAtCarryingValue $ 1,162us-gaap_CashAndCashEquivalentsAtCarryingValue $ 902us-gaap_CashAndCashEquivalentsAtCarryingValue Ìý
FTD Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý Ìý Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý
Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash and cash equivalents Ìý Ìý 530us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		422us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		679us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		595us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		Ìý
Liberty Interactive common stock | HSN, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý Ìý
Liberty Interactive common stock | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý 444,595,005us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		447,451,702us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Liberty Interactive common stock | Reattribution Transaction | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ratio applied to the reattribution 0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý
Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash and cash equivalents Ìý Ìý $ 1,820us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 1,884us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 483us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 307us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý
Liberty Ventures common stock | FTD Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý Ìý 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember 		Ìý Ìý Ìý Ìý
Liberty Ventures common stock | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stockholders' Equity Note, Stock Split, Conversion Ratio Ìý 2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý 134,566,440us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		134,525,874us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Liberty Ventures common stock | Reattribution Transaction Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý 67,700,000us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember