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Investments In Affiliates Accounted For Using The Equity Method (Operating Activities) (Details) (USD $)
In Millions, unless otherwise specified
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3 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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| Equity Method Investments and Operating Activities Segment [Line Items] |
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| Share of earnings (losses)ffiliates, net |
$ 3us-gaap_IncomeLossFromEquityMethodInvestments
|
$ (2)us-gaap_IncomeLossFromEquityMethodInvestments
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| Liberty Interactive common stock |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
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| Share of earnings (losses)ffiliates, net |
24us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
|
21us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
|
| Liberty Interactive common stock | HSN, Inc. |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
|
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| Share of earnings (losses)ffiliates, net |
25us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
|
22us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_HsnIncMember
|
| Liberty Interactive common stock | Equity method investment, other |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
|
|
| Share of earnings (losses)ffiliates, net |
(1)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
|
(1)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_InteractiveGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
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| Liberty Ventures common stock |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
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| Share of earnings (losses)ffiliates, net |
(21)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
|
(23)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
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| Liberty Ventures common stock | Expedia |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
|
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| Share of earnings (losses)ffiliates, net |
4us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
|
(6)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_ExpediaMember
|
| Liberty Ventures common stock | FTD |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
|
|
| Share of earnings (losses)ffiliates, net |
(2)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_FTDMember
|
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| Liberty Ventures common stock | Equity method investment, other |
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| Equity Method Investments and Operating Activities Segment [Line Items] |
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|
| Share of earnings (losses)ffiliates, net |
$ (23)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
|
$ (17)us-gaap_IncomeLossFromEquityMethodInvestments
/ linta_EconomicPerformanceGroupAxis
= linta_VenturesGroupMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= linta_EquityMethodInvestmentOtherMember
|