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Annual report pursuant to Section 13 and 15(d)

Tracking Stock (Details)

v2.4.1.9
Tracking Stock (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 9 Months Ended 0 Months Ended
Sep. 30, 2012
Oct. 13, 2014
Oct. 03, 2014
Apr. 11, 2014
Feb. 27, 2014
Aug. 09, 2012
Apr. 12, 2012
Dec. 31, 2014
item
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sep. 22, 2011
item
Oct. 20, 2014
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stockholders' Equity Note, Stock Split, Conversion Ratio 0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash attributed from the Interactive Group to the Ventures Group Ìý Ìý Ìý Ìý Ìý 1,346linta_CashAttributedFromInteractiveGroupToVenturesGroup Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of tracking stocks Ìý Ìý Ìý Ìý Ìý Ìý Ìý 2linta_Numberoftrackingstocks Ìý Ìý Ìý 3linta_Numberoftrackingstocks Ìý
Cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý 2,306us-gaap_CashAndCashEquivalentsAtCarryingValue 902us-gaap_CashAndCashEquivalentsAtCarryingValue 2,291us-gaap_CashAndCashEquivalentsAtCarryingValue 846us-gaap_CashAndCashEquivalentsAtCarryingValue Ìý Ìý
HSN, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý Ìý Ìý Ìý Ìý Ìý Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý 422us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		595us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		698us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		846us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember 		Ìý Ìý
Liberty Interactive common stock | HSN, Inc. Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý 422us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý Ìý Ìý
Equity Method Investment, Ownership Percentage Ìý Ìý Ìý Ìý Ìý Ìý Ìý 38.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember 		Ìý Ìý Ìý Ìý Ìý
Liberty Interactive common stock | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý Ìý 447,451,702us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		471,625,030us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Liberty Interactive common stock | Reattribution Transaction | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cash reattributed as part of Reattributed Assets Ìý Ìý 970linta_CashReattributedAsPartOfReattributedAssets
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ratio applied to the reattribution Ìý 0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Shares issued as dividend Ìý Ìý Ìý 1linta_CommonStockIssuedDividend
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stockholders' Equity Note, Stock Split, Conversion Ratio 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 Ìý Ìý
Cash and cash equivalents Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 1,884us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 307us-gaap_CashAndCashEquivalentsAtCarryingValue
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		$ 1,593us-gaap_CashAndCashEquivalentsAtCarryingValue
/ 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 Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý Ìý 134,525,874us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		70,761,208us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Liberty Ventures common stock | Reattribution Transaction Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 67,671,232us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
Liberty Ventures common stock | Reattribution Transaction | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Targeted or Tracking Stock, Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ratio applied to the reattribution Ìý Ìý 0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý