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Tracking Stock (Details) (USD $)
In Millions, except Share data, unless otherwise specified
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9 Months Ended |
0 Months Ended |
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Sep. 30, 2012
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Oct. 13, 2014
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Oct. 03, 2014
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Apr. 11, 2014
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Feb. 27, 2014
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Aug. 09, 2012
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Apr. 12, 2012
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Dec. 31, 2014
item
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Sep. 22, 2011
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Oct. 20, 2014
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
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| Cash attributed from the Interactive Group to the Ventures Group |
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1,346linta_CashAttributedFromInteractiveGroupToVenturesGroup
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| Number of tracking stocks |
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2linta_Numberoftrackingstocks
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3linta_Numberoftrackingstocks
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| Cash and cash equivalents |
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2,306us-gaap_CashAndCashEquivalentsAtCarryingValue
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902us-gaap_CashAndCashEquivalentsAtCarryingValue
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2,291us-gaap_CashAndCashEquivalentsAtCarryingValue
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846us-gaap_CashAndCashEquivalentsAtCarryingValue
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| HSN, Inc. |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Equity Method Investment, Ownership Percentage |
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38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
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| Liberty Interactive common stock |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Cash and cash equivalents |
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422us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
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595us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
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698us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
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846us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
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| Liberty Interactive common stock | HSN, Inc. |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Cash and cash equivalents |
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422us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
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| Equity Method Investment, Ownership Percentage |
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38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
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| Liberty Interactive common stock | Common Class A |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Common Stock, Shares, Issued |
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447,451,702us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
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471,625,030us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
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| Liberty Interactive common stock | Reattribution Transaction | Liberty Ventures common stock |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Cash reattributed as part of Reattributed Assets |
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970linta_CashReattributedAsPartOfReattributedAssets
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember
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| Ratio applied to the reattribution |
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0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember
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0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember
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| Liberty Ventures common stock |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Shares issued as dividend |
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1linta_CommonStockIssuedDividend
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
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2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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2us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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| Cash and cash equivalents |
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$ 1,884us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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$ 307us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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$ 1,593us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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| Liberty Ventures common stock | Common Class A |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Common Stock, Shares, Issued |
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134,525,874us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
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70,761,208us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
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| Liberty Ventures common stock | Reattribution Transaction |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Common Stock, Shares, Issued |
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67,671,232us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
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| Liberty Ventures common stock | Reattribution Transaction | Liberty Ventures common stock |
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| Targeted or Tracking Stock, Stock [Line Items] |
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| Ratio applied to the reattribution |
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0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember
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