Investments In Affiliates Accounted For Using The Equity Method (Details) (USD $) Share data in Millions, unless otherwise specified
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12 Months Ended |
1 Months Ended |
3 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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May 31, 2013
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Jan. 18, 2013
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Mar. 31, 2013
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May 01, 2013
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Schedule of Equity Method Investments [Line Items] |
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Investments in affiliates, accounted for using the equity method |
$ 851,000,000us-gaap_EquityMethodInvestments
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$ 3,299,000,000us-gaap_EquityMethodInvestments
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Share of earnings (losses) of affiliates, net |
(113,000,000)us-gaap_IncomeLossFromEquityMethodInvestments
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(32,000,000)us-gaap_IncomeLossFromEquityMethodInvestments
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1,346,000,000us-gaap_IncomeLossFromEquityMethodInvestments
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Income Tax Expense (Benefit) |
66,000,000us-gaap_IncomeTaxExpenseBenefit
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(135,000,000)us-gaap_IncomeTaxExpenseBenefit
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469,000,000us-gaap_IncomeTaxExpenseBenefit
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Charter Communications |
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Schedule of Equity Method Investments [Line Items] |
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Equity Method Investment, Aggregate Cost |
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2,600,000,000us-gaap_EquityMethodInvestmentAggregateCost / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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excess amortization in share of earnings (loss) |
60,000,000lmca_ExcessAmortizationInShareOfEarningsLoss / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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51,000,000lmca_ExcessAmortizationInShareOfEarningsLoss / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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Percentage ownership |
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27.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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Investments in affiliates, accounted for using the equity method |
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2,395,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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Purchase of shares in equity method investee |
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26.9lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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Share of earnings (losses) of affiliates, net |
(94,000,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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(83,000,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_CharterCommunicationsMember
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SIRIUS XM |
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Schedule of Equity Method Investments [Line Items] |
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Purchase of shares in equity method investee |
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50.0lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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50.0lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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Share of earnings (losses) of affiliates, net |
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8,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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1,367,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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Share of tax benefit of affiliates |
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1,229,000,000lmca_IncomeTaxBenefitFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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Live Nation |
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Schedule of Equity Method Investments [Line Items] |
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Percentage ownership |
27.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Investments in affiliates, accounted for using the equity method |
396,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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409,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Equity Method Investment, Quoted Market Value |
1,403,000,000us-gaap_EquityMethodInvestmentQuotedMarketValue / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Purchase of shares in equity method investee |
1.7lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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1.7lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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11.0lmca_PurchaseOfSharesInEquityMethodInvestee / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Payments to Acquire Equity Method Investments |
39,000,000us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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19,000,000us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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107,000,000us-gaap_PaymentsToAcquireEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Share of earnings (losses) of affiliates, net |
(30,000,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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(18,000,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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(45,000,000)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_LiveNationMember
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Sirius XM Canada |
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Schedule of Equity Method Investments [Line Items] |
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Percentage ownership |
37.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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Investments in affiliates, accounted for using the equity method |
237,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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273,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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Equity Method Investment, Quoted Market Value |
247,000,000us-gaap_EquityMethodInvestmentQuotedMarketValue / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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Share of earnings (losses) of affiliates, net |
5,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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7,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmCanadaMember
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Equity method investment, other |
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Schedule of Equity Method Investments [Line Items] |
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Investments in affiliates, accounted for using the equity method |
218,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_EquityMethodInvestmentOtherMember
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222,000,000us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_EquityMethodInvestmentOtherMember
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Share of earnings (losses) of affiliates, net |
6,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_EquityMethodInvestmentOtherMember
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54,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_EquityMethodInvestmentOtherMember
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24,000,000us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_EquityMethodInvestmentOtherMember
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SIRIUS XM | SIRIUS XM |
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Schedule of Equity Method Investments [Line Items] |
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Income Tax Expense (Benefit) |
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$ 3,000,000,000us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = lmca_SiriusXmMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = lmca_SiriusXmMember
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