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Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

v2.4.1.9
Stockholders' Equity (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 9 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 3 Months Ended 0 Months Ended
Sep. 30, 2012
Dec. 31, 2012
Apr. 11, 2014
Feb. 27, 2014
Aug. 09, 2012
Apr. 12, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Oct. 13, 2014
Oct. 03, 2014
Oct. 20, 2014
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Preferred Stock, Shares Issued Ìý Ìý Ìý Ìý Ìý Ìý 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued Ìý Ìý Ìý Ìý
Stock split, conversion ratio 0.05us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Proceeds from Issuance of Common Stock Ìý $ 328us-gaap_ProceedsFromIssuanceOfCommonStock 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
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Shares issued as dividend Ìý Ìý 1linta_CommonStockIssuedDividend
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember 		Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stock split, conversion ratio 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
Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Share received in exchange Ìý Ìý Ìý Ìý Ìý Ìý 1linta_CommonStockSharesReceivedInExchangeForOneShareOfSeriesB
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Common Class A | Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes Ìý Ìý Ìý Ìý Ìý Ìý 1linta_NumberOfVotes
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 4,000,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		4,000,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued 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
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 447,451,702us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		471,625,030us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Shares reserved for future issuance upon exercise of stock options Ìý Ìý Ìý Ìý Ìý Ìý 24,900,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý Ìý Ìý Ìý Ìý 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
Stock Repurchased and Retired During Period, Shares Ìý 44,668,431us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý 27,356,993us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		46,305,637us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Stock Repurchased and Retired During Period, Value Ìý 815us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý 785us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		1,089us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Common Class A | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes Ìý Ìý Ìý Ìý Ìý Ìý 1linta_NumberOfVotes
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 200,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		200,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued 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
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 134,525,874us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		70,761,208us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý
Shares reserved for future issuance upon exercise of stock options Ìý Ìý Ìý Ìý Ìý Ìý 4,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý Ìý Ìý Ìý Ìý 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
Stock split, dividends Ìý Ìý Ìý Ìý Ìý Ìý 2linta_CommonStockDividendsStockSplitNumberofShares
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý
Subscription Agreement Amount (in dollars per share) Ìý $ 35.99linta_SubscriptionAgreementAmount
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý Ìý Ìý Ìý $ 35.99linta_SubscriptionAgreementAmount
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Stock Issued During Period, Shares, Other Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 9,000,000us-gaap_StockIssuedDuringPeriodSharesOther
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Proceeds from Issuance of Common Stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 328us-gaap_ProceedsFromIssuanceOfCommonStock
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember 		Ìý Ìý Ìý
Common Class B | Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes Ìý Ìý Ìý Ìý Ìý Ìý 10linta_NumberOfVotes
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 150,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		150,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý 28,877,554us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		28,884,103us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 28,877,554us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		28,884,103us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Shares reserved for future issuance upon exercise of stock options Ìý Ìý Ìý Ìý Ìý Ìý 1,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý Ìý Ìý Ìý Ìý 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
Common Class B | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes Ìý Ìý Ìý Ìý Ìý Ìý 10linta_NumberOfVotes
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 7,500,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		7,500,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý 6,991,127us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		2,885,378us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 6,991,127us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		2,885,378us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý
Shares reserved for future issuance upon exercise of stock options Ìý Ìý Ìý Ìý Ìý Ìý 1,500,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý
Outstanding options Ìý Ìý Ìý Ìý Ìý 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
Stock split, dividends Ìý Ìý Ìý Ìý Ìý Ìý 2linta_CommonStockDividendsStockSplitNumberofShares
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember 		Ìý Ìý Ìý Ìý Ìý
Common Class C | Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 4,000,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý 0us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 0us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Common Class C | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý Ìý Ìý Ìý Ìý Ìý 200,000,000us-gaap_CommonStockSharesAuthorized
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý Ìý Ìý Ìý Ìý Ìý 0us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý Ìý Ìý Ìý Ìý Ìý 0us-gaap_CommonStockSharesOutstanding
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassCMember 		Ìý Ìý Ìý Ìý Ìý
Reattribution Transaction | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] 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 67,671,232us-gaap_CommonStockSharesIssued
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
Liberty Ventures common stock | Reattribution Transaction | Liberty Interactive common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ratio applied to the reattribution Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 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
Liberty Ventures common stock | Reattribution Transaction | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Ratio applied to the reattribution Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý 0.14217linta_StockholdersEquityReattributionRatio
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_RelatedPartyTransactionAxis
= linta_ReattributionTransactionMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= linta_VenturesGroupMember 		Ìý