FWONA


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents


lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:CommonStockValue
lmca:EconomicPerformanceGroup
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
lmca:EconomicPerformanceGroup
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
lmca:EconomicPerformanceGroup
us-gaap:EarningsPerShareBasic
lmca:EconomicPerformanceGroup
us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax
lmca:EconomicPerformanceGroup

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostsAndExpenses

us-gaap:GainLossOnInvestments
us-gaap:FinancialInstrument
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:LitigationSettlementExpense

us-gaap:NetIncomeLoss
lmca:EconomicPerformanceGroup

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
lmca:EconomicPerformanceGroup
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:ProductOrService
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity, lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ReceivablesNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:AmortizationOfIntangibleAssets

us-gaap:Goodwill
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:ReportingUnit

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:StatementBusinessSegments

us-gaap:DebtCurrent
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
lmca:EconomicPerformanceGroup

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireProductiveAssets
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
dei:LegalEntity
us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock
dei:LegalEntity
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
dei:LegalEntity
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
dei:LegalEntity, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:StatementClassOfStock

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

lmca:AcquisitionAndRestructuringCosts

lmca:AdjustedOibda
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:BusinessAcquisition
lmca:AssetAcquisitionWorkingCapitalAdjustments
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
lmca:ClassOfWarrantOrRightPriceOfWarrantsOrRights
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
lmca:ClassOfWarrantOrRightWarrantsIssued

lmca:ComprehensiveIncomeLossAttributableToNonredeemableNoncontrollingInterest

lmca:ComprehensiveIncomeLossAttributableToRedeemableNoncontrollingInterest
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
lmca:DebtInstrumentCommitmentFeePercentage
us-gaap:DebtInstrument
us-gaap:ConsolidatedEntities
lmca:FounderSharesPurchased
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
lmca:InsuranceCoverageAmount

lmca:OperatingCostsAndExpensesNet

lmca:OtherComprehensiveIncomeLossCreditRiskOnFairValueDebtInstrumentsGainLossNetOfTax

lmca:OtherComprehensiveIncomeLossOnGainsLossesOnEarlyExtinguishmentOfDebt

lmca:PaymentTaxWithholdingShareBasedPaymentArrangementNet

lmca:PaymentsForInvestmentsInTrustAccounts

lmca:PaymentsToReceivedAcquireBusinessesNetOfCashAcquired
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
lmca:PaymentsToSettleObligationUnderCallSpread
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType
us-gaap:TitleOfIndividual, us-gaap:AwardType
lmca:PercentageOfBaseSalaryAgreedToBeWaived
us-gaap:TitleOfIndividual, us-gaap:AwardType
lmca:PercentageOfBaseSalaryOfThreeQuartersInLieuOfWhichTimeBasedRSUWasGranted
dei:LegalEntity, lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
lmca:ProceedsToSettleObligationUnderCallSpread

lmca:ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus
lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions
dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus
lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions
dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus
lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions
dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus
lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions
lmca:EconomicPerformanceGroup, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
lmca:ReductionInFutureBorrowingCapacity

lmca:ReturnOfInvestmentInEquityMethodAffiliates
us-gaap:RelatedPartyTransactionsByRelatedParty
lmca:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue

lmca:ShareOfOtherComprehensiveEarningsLossOfEquityAffiliates
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
lmca:SharesAttributableToDebentures
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
lmca:SharesAttributableToDebenturesSold

lmca:SubscriberAcquisitionCosts

lmca:SubsidiarySharesRepurchasedBySubsidiary

lmca:TemporaryEquityChangeInRedemptionValue

lmca:TemporaryEquityInitialRecognitionOfRedeemableNoncontrollingInterests
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
lmca:UnitsIssuedDuringPeriod
us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock
lmca:EconomicPerformanceGroup
lmca:UnrealizedGainLossOnIntergroupInterest

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:AssetImpairmentCharges
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:BusinessExitCosts1
dei:LegalEntity
us-gaap:CashDividendsPaidToParentCompany

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests
us-gaap:StatementEquityComponents

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:VariableRate
us-gaap:DebtInstrument, us-gaap:VariableRate
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:DebtInstrumentRedemptionPricePercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:GoodwillAcquiredDuringPeriod
us-gaap:ReportingUnit
dei:LegalEntity
us-gaap:ImpairmentOfLeasehold
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

us-gaap:IncomeLossFromEquityMethodInvestments
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInOperatingAssets
lmca:EconomicPerformanceGroup
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:InsuranceRecoveries

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest
us-gaap:FinancialInstrument
us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDividendsMinorityInterest
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromIssuanceInitialPublicOffering
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceOfCommonStock
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:ProceedsFromIssuanceOfDebt
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:ProceedsFromIssuanceOfWarrants
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfProductiveAssets
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionAmountsOfTransaction
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
dei:LegalEntity
us-gaap:RestructuringCharges
dei:LegalEntity
us-gaap:RestructuringCostsAndAssetImpairmentCharges

us-gaap:RestructuringSettlementAndImpairmentProvisions
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RevenueFromRelatedParties
dei:LegalEntity, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:StatementClassOfStock
us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:StatementClassOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:StatementClassOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:StatementClassOfStock
lmca:EconomicPerformanceGroup
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:TemporaryEquityNetIncome
us-gaap:StatementClassOfStock
dei:EntityCommonStockSharesOutstanding
dei:LegalEntity
lmca:AggregateCoverageAmountUnderInsurancePolicy
dei:LegalEntity
lmca:CompensationGuaranteeAggregateTotal
us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:DebtInstrument
lmca:DebtInstrumentMinimumLiquidityToBeMaintained
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
dei:LegalEntity
lmca:DebtInstrumentNetOfUnamortizedDiscountPremium
dei:LegalEntity, us-gaap:DebtInstrument
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
lmca:DebtInstrumentRedemptionPrice

lmca:DeferredTaxAssetDiscountOnExchangeableDebentures
us-gaap:IncomeTaxAuthority
lmca:DeferredTaxAssetsInterestExpenseCarryforwardsNotSubjectToExpiration

lmca:DeferredTaxLiabilitiesAssetsNoncurrent
dei:LegalEntity
lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFiveYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFourYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesOneYearAfterBalanceSheetDate
dei:LegalEntity
lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesThreeYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesTwoYearsAfterBalanceSheetDate
us-gaap:StatementBusinessSegments
lmca:GuaranteedEmploymentContractDueInFiveYears
dei:LegalEntity
lmca:GuaranteedEmploymentContractDueInFourYears
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
lmca:GuaranteedEmploymentContractDueInOneYear
dei:LegalEntity
lmca:GuaranteedEmploymentContractDueInThreeYears
us-gaap:StatementBusinessSegments
dei:LegalEntity
lmca:GuaranteedEmploymentContractDueInTwoYears
us-gaap:StatementBusinessSegments
dei:LegalEntity
lmca:GuaranteedEmploymentContractDueReminderOfFiscalYear
dei:LegalEntity
lmca:GuaranteedEmploymentContractDueThereafter
us-gaap:StatementBusinessSegments

lmca:IndefiniteLivedIntangibleAssetsTotal
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
lmca:MaximumLoansConvertibleIntoWarrants
dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:SubsequentEventType

lmca:OperatingLossAndTaxCreditCarryforwardsValuationAllowance
us-gaap:FinancialInstrument
lmca:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossCumulativeValueBeforeTax
us-gaap:OptionIndexedToIssuersEquityType, us-gaap:StatementClassOfStock
lmca:SecuritiesBasketPricePerShare
dei:LegalEntity
lmca:SiriusXmOtherContractualArrangementsAmountsPayableFiveYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:SiriusXmOtherContractualArrangementsAmountsPayableFourYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:SiriusXmOtherContractualArrangementsAmountsPayableOneYearAfterBalanceSheetDate
dei:LegalEntity
lmca:SiriusXmOtherContractualArrangementsAmountsPayableThreeYearsAfterBalanceSheetDate
dei:LegalEntity
lmca:SiriusXmOtherContractualArrangementsAmountsPayableTwoYearsAfterBalanceSheetDate
us-gaap:StatementScenario, us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement
lmca:TargetVotingPowerAdditonalConditionalPercentage
us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement
us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement
lmca:TargetVotingPowerPercentage

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationContingentConsiderationLiability
dei:LegalEntity, us-gaap:Range, us-gaap:BusinessAcquisition
dei:LegalEntity, us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:FairValueByAssetClass
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsidiarySaleOfStock
us-gaap:ClassOfWarrantOrRightOutstanding
lmca:EconomicPerformanceGroup
us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:DebtInstrumentCarryingAmount
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:DebtInstrumentCollateralAmount
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:FairValueByAssetClass
us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateEffectivePercentage
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:DebtInstrumentRepurchasedFaceAmount
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:DebtWeightedAverageInterestRate
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
lmca:EconomicPerformanceGroup
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInvestments

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic
dei:LegalEntity
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesRegulatoryAssets
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsidiarySaleOfStock
us-gaap:DerivativePriceRiskOptionStrikePrice
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:StatementClassOfStock, us-gaap:SubsidiarySaleOfStock
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromRelatedPartiesCurrent
dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueToRelatedPartiesCurrent
dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueToRelatedPartiesNoncurrent
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
dei:LegalEntity
dei:LegalEntity, us-gaap:AwardType
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentQuotedMarketValue

us-gaap:EquityMethodInvestments
lmca:EconomicPerformanceGroup
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems
lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock
us-gaap:EscrowDeposit

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:FairValueByAssetClass
us-gaap:FinancialLiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:IndefiniteLivedLicenseAgreements
dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:InsuranceSettlementsReceivable

us-gaap:InvestmentsFairValueDisclosure
us-gaap:FairValueByAssetClass
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument

us-gaap:LongTermDebtFairValue
lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:ConsolidatedEntities, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
us-gaap:Ownership
us-gaap:Ownership, us-gaap:Range, us-gaap:StatementScenario
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument
us-gaap:NotesReceivableRelatedPartiesNoncurrent
us-gaap:FairValueByAssetClass
us-gaap:OtherAssetsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:ConsolidatedEntities, us-gaap:TypeOfArrangement
us-gaap:OtherCommitment

us-gaap:OtherIndefiniteLivedIntangibleAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherLiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:RestrictedCashAndCashEquivalentsNoncurrent

us-gaap:RestrictedCashEquivalentsCurrent
us-gaap:StatementBusinessSegments
us-gaap:RevenueRemainingPerformanceObligation
lmca:EconomicPerformanceGroup, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
lmca:EconomicPerformanceGroup, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:StatementClassOfStock
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
dei:LegalEntity
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
dei:LegalEntity
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
dei:LegalEntity
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
dei:LegalEntity
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
dei:LegalEntity, us-gaap:AwardType
lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock
us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:TypeOfArrangement
us-gaap:SharesIssuedPricePerShare
us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock

us-gaap:ShorttermDebtFairValue
us-gaap:Range
us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:WarrantsAndRightsOutstanding

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
 us-gaap:CommonStockValue lmca:EconomicPerformanceGroup,us-gaap:StatementClassOfStock lmca:LibertyFormulaOneGroup,us-gaap:CommonClassC██████████████████▁2.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.01.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding lmca:EconomicPerformanceGroup lmca:LibertyBravesGroup▄▄61.061.0NA60.060.061.0NA61.061.061.0NA61.060.060.0NA59.059.059.0NA59.045.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding lmca:EconomicPerformanceGroup lmca:LibertyFormulaOneGroup█▁240.0239.0NA238.0237.0233.0NA233.0233.0233.0NA232.0232.0233.0NA218.0214.0179.0NA85.084.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding lmca:EconomicPerformanceGroup lmca:LibertySiriusXmGroup▁█337.0339.0NA344.0329.0319.0NA321.0323.0327.0NA335.0337.0340.0NA340.0339.0339.0NA337.0337.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfSharesOutstandingBasic lmca:EconomicPerformanceGroup lmca:LibertyBravesGroup▄▄52.052.0NA51.051.051.0NA51.051.051.0NA51.051.051.0NA49.049.049.0NA49.036.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfSharesOutstandingBasic lmca:EconomicPerformanceGroup lmca:LibertyFormulaOneGroup▄▄232.0232.0NA232.0232.0232.0NA231.0231.0231.0NA231.0231.0231.0NA216.0207.0173.0NA84.083.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:WeightedAverageNumberOfSharesOutstandingBasic lmca:EconomicPerformanceGroup lmca:LibertySiriusXmGroup▁█335.0338.0NA343.0328.0315.0NA317.0319.0323.0NA330.0333.0336.0NA336.0335.0335.0NA335.0335.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount lmca:EconomicPerformanceGroup,us-gaap:StatementClassOfStock lmca:LibertyFormulaOneGroup,lmca:CommonClassAandC▁█6.07.0NA6.012.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount lmca:EconomicPerformanceGroup,us-gaap:StatementClassOfStock lmca:LibertySiriusXmGroup,lmca:CommonClassAandC▄▄22.022.0NA25.025.022.0NA22.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareBasic lmca:EconomicPerformanceGroup lmca:LibertyBravesGroup▆▂▁▃▃█▃▆▆▁▆▇▅▂▅▆▅▂▃▄█0.48-1.13-1.22-0.61-0.751.04-0.860.240.51-1.390.350.8-0.04-1.020.080.45-0.04-1.0-0.82-0.450.89NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareBasic lmca:EconomicPerformanceGroup lmca:LibertyFormulaOneGroup▅▄▅▃▂▁▃▅▃▃▂▅▄▄█▄▄▃▅▅▃0.24-0.20.18000000000000016-0.41-0.86-1.48-0.550.18-0.33-0.64-0.80.180.04-0.071.8-0.17-0.13-0.550.480.49-0.54NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareBasic lmca:EconomicPerformanceGroup lmca:LibertySiriusXmGroup▆▅▁▅▅▆▆▆▆▅▆▆▆▆█▆▅▅▅▅▅1.01-0.03-2.660.03-0.270.680.40.440.520.190.390.560.50.62.070.540.370.370.360.290.24NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareDiluted lmca:EconomicPerformanceGroup lmca:LibertyBravesGroup▇▂▄▃▃▃▃▆▇▁▅█▅▂▆▇▅▂▃▄▆0.39-1.13-0.42999999999999994-0.61-0.75-0.69-0.860.160.46-1.39-0.070.8-0.04-1.020.070.45-0.04-1.0-0.82-0.450.11NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareDiluted lmca:EconomicPerformanceGroup lmca:LibertyFormulaOneGroup▅▄▅▃▂▁▃▅▃▃▂▅▄▄█▄▄▃▅▅▃0.24-0.20.18000000000000016-0.41-0.86-1.48-0.550.18-0.33-0.64-0.80.180.04-0.071.79-0.17-0.13-0.550.470.48-0.54NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EarningsPerShareDiluted lmca:EconomicPerformanceGroup lmca:LibertySiriusXmGroup▆▅▁▅▅▆▆▆▆▅▆▆▆▆█▆▅▆▅▅▅1.0-0.03-2.640.03-0.270.570.390.440.520.190.380.550.490.592.040.540.360.370.350.280.24NANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▄▄█▅▁▅▇▇▇▅▁▁▃▁60.063.081.068.045.067.074.076.076.065.047.046.053.046.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▂▂▁▁▁▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂421.0-161.0-846.0-251.0-290.077.0-17.0157.0134.0-163.0-3.0262.0142.0125.01112.0193.0106.0-21.0111.0111.075.0370.039.0-28.049.0-26.063.024.052.022.0560.093.094.08034.0107.0206.0935.0149.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest NANA-178.074.068.068.067.067.079.034.064.0101.080.079.0315.093.062.065.066.054.060.065.044.059.024.038.057.054.056.050.067.034.062.048.0-3.0-1.01.01.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▂▂▁▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▃▂534.0-58.0-1024.0-177.0-222.0145.050.0224.0213.0-129.061.0363.0222.0204.01427.0286.0168.044.0177.0165.0135.0435.083.031.073.012.0120.078.0108.072.0627.0127.0156.08082.0104.0205.0936.0150.0NANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService lmca:CustomerServiceAndBilling█▆▇▆▇▆▇▆▆▅▂▁▁127.0117.0122.0119.0122.0118.0123.0120.0119.0113.098.095.095.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService lmca:Formula▆▂▆█▁▁▆▆▇▃▅▇▆398.084.0364.0551.016.043.0371.0434.0441.0148.0328.0450.0414.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService lmca:OtherCostOfSubscriberServices▇▆▆▅▅▄█▆▅▂▂▁▂58.052.054.051.047.044.063.052.047.037.034.030.033.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService lmca:ProgrammingAndContentExpense█▇▇▆▃▅▆▄▄▃▂▁▂135.0130.0130.0123.0110.0118.0124.0116.0116.0106.0103.097.0105.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService lmca:RevenueShareAndRoyalties███▇▆▆▇▆▇▄▁▁▂663.0640.0662.0602.0587.0570.0607.0592.0600.0492.0337.0343.0404.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▆▅█▆▅▅▆▆▆▅▄▅▅▄▄▄▅▃▃▃▃▂▃▃▃▃▃▃▃▃▃▃▃▂▄▁▁▁2254.02112.03312.02412.01695.01767.02317.02349.02344.01812.01630.01784.01825.01290.01663.01683.01718.01136.01048.01033.01038.0423.0991.0963.01051.0836.0889.0935.0929.0856.0836.0862.0842.0629.01329.0144.0133.067.0NANANANA
us-gaap:GainLossOnInvestments █▄▁▆▂▅▃▅▄▄▃▅▆█▄▆▄▅155.0-49.0-239.016.0-180.01.0-144.014.0-87.0-98.0-140.0-31.058.0153.0-45.018.0-49.0-12.0NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt lmca:EconomicPerformanceGroup,us-gaap:DebtInstrument lmca:LibertySiriusXmGroup,lmca:SiriusXmHoldings4.625SeniorNotesDue2023And5.375SeniorNotesDue2025NANANA-40.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▃▂584.0-145.0-1129.0-36.0-308.038.0-40.0360.0262.0-69.073.0418.0322.0228.086.0385.0236.0120.0203.0303.0229.0684.0149.070.0134.0105.0165.0150.0181.0-35.0654.0210.0262.07749.0413.0250.01237.0112.0NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▂█▂▂▃▂584.0-145.0-1129.0-36.0-308.038.0-40.0360.0262.0-69.073.0418.0322.0228.086.0385.0236.0120.0203.0303.0229.0684.0149.070.0134.0105.0165.0150.0181.0-35.0856.00.0262.07749.012.00.01237.0112.0NANANANA
us-gaap:IncomeTaxExpenseBenefit ▇▆▆▇▆▇▆▇▇▇▇▇▇▇▁▇▇▇▇▇▇█▇▇▇▇▇▇▇▆▇▇▇▅▆▇█▇▇56.0-131.0-41.07.0-46.036.0-60.098.070.058.042.052.067.015.0-1343.0124.080.076.017.0134.089.0257.060.029.035.086.035.063.075.0-107.035.094.0104.0-361.0-104.088.0370.040.0211.0NANANA
us-gaap:InterestExpense ██▇▇██████▇▇▇▇▇█▇▇▅▅▅▄▄▄▄▄▄▄▄▃▃▃▂▁▂▁▁▁158.0158.0154.0153.0163.0164.0162.0169.0167.0159.0153.0150.0153.0150.0143.0159.0149.0140.090.098.090.084.084.084.083.077.070.070.062.053.054.039.028.011.027.01.02.03.0NANANANA
us-gaap:LitigationSettlementExpense NANA0.00.00.0-16.00.00.00.025.00.00.069.0NANANANANANANANANA0.00.0108.0NANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▂▂▁▂▁▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂417.0-116.0-905.0-114.0-326.0-76.0-45.0193.0116.0-158.0-40.0268.0172.0131.01113.0168.094.0-21.0119.0115.080.0365.044.0-22.061.0-19.073.033.050.022.0552.076.096.08062.0106.0221.0937.0150.0NANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▅▄▁▅▄▅▄▅▅▄▅▅▅▅█▅▄▄▅▄▄▄▄▄▄▄▄▄▄▄▅▄▄▄▄▄▄▄111.049.0-183.071.064.078.065.069.076.031.071.098.083.082.0316.093.062.065.067.054.060.062.045.063.038.038.057.054.056.050.067.040.062.048.0-3.0-1.01.01.0NANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted lmca:EconomicPerformanceGroup lmca:LibertyBravesGroup▆▂▂▃▂▁▂▅▆▁▄█▆▁▃▇▄▃24.0-31.0-26.0-21.0-31.0-42.0-28.010.028.0-45.0-4.054.026.0-47.0-24.034.01.0-21.0NA3.05.0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted lmca:EconomicPerformanceGroup lmca:LibertyFormulaOneGroup█▆█▅▄▁▅▇▅79.0-45.066.0-72.0-172.0-343.0-127.041.0-77.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted lmca:EconomicPerformanceGroup lmca:LibertySiriusXmGroup█▆▁▆▆▇▇▇▇▆337.0-11.0-885.012.0-92.0183.0126.0140.0167.061.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁█▂▂▃▂-38.0-287.0-526.0-356.0-522.0-208.0-342.0-147.0-199.0-269.0-306.0-113.0-52.01.0-245.03.0-186.0-139.0-70.0-49.0-99.0-97.0-68.0-251.0-37.0-140.0-41.0-99.0-50.0-190.0465.0-38.026.07589.067.0240.01235.0144.0NANANANA
us-gaap:OperatingIncomeLoss ▇▅▁▆▅▅▆▇▆▅▆▇▆▅▆▆▆▅▅▆▆█▅▆▅▅▅▅▅▅▅▅▅▅▄▅▅▄▆▅▅▆622.0142.0-603.0320.0214.0246.0302.0507.0461.0200.0379.0531.0374.0227.0331.0382.0422.0259.0273.0352.0328.0781.0217.0321.0171.0245.0206.0249.0231.0155.0189.0248.0236.0160.025.0111.0101.089.0293.0111.094.0459.0
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▇▆█▇▇▁▆▄▇▆▃▇▅▆▅█▆10.04.022.012.015.0-37.09.0-8.010.09.0-23.010.0-2.04.0-4.022.06.0NA-1.0-2.0-1.0NA-2.0-9.0-31.0NANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▃▆▁▅█▅▃▅▄▅▄▄▄▄▅6.0-44.064.0-134.040.0143.030.0-38.021.0-2.030.0-3.0-33.0-9.0-2.025.0NANA-9.0-4.0-5.08.0-6.0-10.0-26.0-7.0-10.0-9.02.00.08.011.0-2.0-28.01.0-15.0-2.0-1.0NANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▆▆▃▆▆▇▂▆▆█▆▆▅▅▄▅▆▄▅▅▅▄▅▅▅▅▄▅▃▃▁▅▅▄█▆▅13.015.011.0-32.014.017.027.0-47.021.08.041.010.021.06.06.0-11.0-4.017.0-21.05.05.07.0-13.04.06.02.0-8.0-13.0-2.0-38.0-42.0-67.0-1.0-5.0-18.049.08.02.0NANANANA
us-gaap:ProfitLoss ▂▂▁▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▃▂528.0-14.0-1088.0-43.0-262.02.020.0262.0192.0-127.031.0366.0255.0213.01429.0261.0156.044.0186.0169.0140.0427.089.041.099.019.0130.087.0106.072.0619.0116.0158.08110.0103.0220.0938.0151.0NANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▆██▅▆▇██▆▆▆▆▄▅▆▆▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▂▁▁▁▁▃▁▁▃2876.02254.02709.02732.01909.02013.02619.02856.02805.02012.02009.02315.02199.01517.01994.02065.02140.01395.01321.01385.01366.01204.01208.01284.01222.01081.01095.01184.01160.01011.01025.01110.01078.0789.0467.0555.0537.0440.0973.0540.0538.0973.0
us-gaap:Revenues █▆██▅▆▇██▆▆▆▆▄▅▆▆▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▂▁▁▁▁▃▁▁▃2876.02254.02709.02732.01909.02013.02619.02856.02805.02012.02009.02315.02199.01517.01994.02065.02140.01395.01321.01385.01366.01204.01208.01284.01222.01081.01095.01184.01160.01011.01025.01110.01078.0789.0467.0555.0537.0440.0973.0540.0538.0973.0
us-gaap:SellingGeneralAndAdministrativeExpense ▇▆█▆▆▆█▇▇▆▅▅▅▄▅▅▅▄▄▄▃▃▄▃▃▃▄▃▄▄▄▃▃▃▅▁▁▁445.0410.0529.0423.0390.0408.0534.0440.0436.0402.0340.0295.0303.0265.0311.0324.0288.0239.0242.0235.0208.0201.0253.0207.0199.0202.0233.0209.0215.0216.0216.0207.0185.0154.0303.037.041.033.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:Assets ██████████▇▇▇▇▇▇▇▇▅▅▅▅▅▅▅▅▅▆▆▆▆▆▆▅▁45654.044465.044004.043789.046208.043918.044189.043645.043700.043910.040828.041624.041807.042540.041996.041853.041384.041002.031377.031563.030889.030326.029798.030680.031111.031430.031207.033845.034075.033693.034542.033943.033884.032396.08325.0NANANA7719.0NANANA
us-gaap:Liabilities ███▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▄▄▄▄▄▄▄▄▄▄▄▃▄▃▃▃▁26071.024992.024403.022409.024120.022216.022264.021467.021219.020715.019130.019255.019342.020065.019422.020399.020300.020226.013661.013570.012838.012241.011667.012238.012152.011790.011031.011251.011138.09816.010660.09964.09571.07645.01893.0NANANA2470.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ██████████▇▇▇▇▇▇▇▇▅▅▅▅▅▅▅▅▅▆▆▆▆▆▆▅▁45654.044465.044004.043789.046208.043918.044189.043645.043700.043910.040828.041624.041807.042540.041996.041853.041384.041002.031377.031563.030889.030326.029798.030680.031111.031430.031207.033845.034075.033693.034542.033943.033884.032396.08325.0NANANA7719.0NANANA
us-gaap:StockholdersEquity ▇▆▇▇█▇█████████▇▇▇▅▄▄▄▄▄▄▄▄▆▆▆▆▆▆▆▁14888.014670.015091.016192.016610.016167.016295.016517.016596.016707.016595.016860.016888.016977.016943.015839.015448.014980.011756.011705.011647.011381.010933.010994.011075.011308.011398.014021.013976.014141.014081.014419.014376.014277.06440.0NANANA5259.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:AssetsCurrent █▆▆▅█▄▄▃▃▃▂▂▂▃▃▂▂▃▂▂▃▂▁▃▄▄▃▃▃▃▄▄▃▅▃5361.04203.04030.03273.05381.02989.02405.01936.01931.01732.01082.01241.01327.01919.01763.01435.01433.01708.01029.01472.01768.01164.0691.02110.02478.02737.02344.02171.02274.01801.02494.02481.02365.03458.02211.0NANANA3860.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▆▆▄█▄▃▂▂▂▁▁▂▃▃▂▂▃▂▂▃▂▁▂▂▃▂▁▂▁▃▃▂▄▃▁▂3935.02994.02831.01936.03999.01801.01222.0694.0697.0633.0358.0355.0485.01042.01029.0783.0744.01071.0562.0940.01229.0602.0201.0588.0790.01172.0681.0377.0566.0377.01088.01171.0937.01900.01353.0323.0646.0NA2070.0841.0NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▆▆▄█▄▃▂▂▁▁▁▁▂▂▂▂▂▁4006.03039.02877.01974.04031.01835.01306.0773.0751.0671.0452.0451.0563.01079.01047.0794.0754.01081.0572.0NANANA211.0NANANANANANANANANANANANANANANANANANANA
us-gaap:ReceivablesNetCurrent █▇█▇▆▆▇▇█▇▃▄▃▃▃▃▃▂▁▂▂▁▁▂▂▁▁▁▁▁▁▁▂▁▂823.0777.0823.0771.0673.0700.0767.0778.0849.0728.0364.0440.0428.0394.0358.0353.0363.0280.0240.0274.0276.0244.0247.0278.0332.0228.0235.0243.0240.0204.0206.0225.0259.0237.0286.0NANANA288.0NANANA
us-gaap:OtherAssetsCurrent ▇▅▄▆█▅▄▅▄▄▄▅▄▅▄▃▃▄▂▂▂▂▂▄▃▃▃▃▃▃▃▂▂▃▁603.0432.0376.0566.0709.0488.0416.0464.0385.0371.0360.0446.0414.0483.0376.0299.0326.0357.0227.0258.0263.0257.0228.0385.0348.0298.0298.0340.0305.0290.0284.0207.0230.0303.0148.0NANANA45.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NoncurrentAssets NANA2239.0NANANA2262.0NANANA2469.0NANANA2541.0NANANA2352.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:GBNANA18.0NANANA16.0NANANA12.0NANANA12.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA2221.0NANANA2246.0NANANA2457.0NANANA2529.0NANANA2352.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AmortizationOfIntangibleAssets █▇██▇▇▇██▇▆▇▆▆▆▆▆▅▂▂▂▂▂▂▂▂▂▂▂▂▄▂▃▂▁202.0199.0206.0214.0197.0198.0197.0204.0207.0182.0162.0170.0168.0154.0146.0167.0165.0116.037.045.047.039.039.044.040.032.035.038.041.036.0108.030.055.026.07.0NANA3.0NANANANA
us-gaap:Goodwill ██████████▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁19247.019224.019218.019956.019956.019939.019939.019952.019948.019927.018386.018386.018383.018383.018383.018395.018398.018313.014345.014345.014345.014345.014345.014345.014345.014345.014345.014391.014389.014389.014365.014203.014221.014215.0332.0NANANA332.0NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▆▇▇▇▇▇▇███▇▇▇█████▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁5085.05232.05378.05489.05653.05790.05940.06079.06222.06367.05715.05830.05952.06015.06131.06242.06373.06467.01072.01070.01068.01080.01097.01112.01125.01081.01096.01145.01170.01208.01200.0964.0987.01039.0120.0NANANA135.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA465.0NANANA510.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▇▆▅▅▄▅▅▅▄▂▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▂▁▁▁▁3102.02868.02136.01724.01694.01508.02013.01745.01689.01246.0583.0781.0811.0715.0640.0701.0709.0692.0480.0435.0378.0434.0465.0353.0367.0356.0326.0282.0296.0290.0379.0192.0179.091.0240.0NANANA238.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▇▅█▅▅▄█▇▇▅▂▁▃▁▃1567.01347.01583.01403.01401.01308.01621.01537.01507.01347.01116.01097.01229.01064.01250.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▄▄▂▄█▇▃▄▅▇▂▄▅▆▁2211.02283.02070.02242.02638.02585.02113.02235.02356.02499.02079.02235.02387.02463.01941.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DebtCurrent ▇▄▄▁█▃▁▁▁▁▁▁▁▁▄▁▁▁▁▃▂▂▂▂▂▂▂▄▄▄▄▃▁▁▁1553.0778.0743.096.01874.0590.060.014.013.013.017.018.018.036.0768.047.05.048.05.0609.0256.0256.0255.0256.0258.0258.0257.0754.0762.0770.0777.0496.04.04.04.0NANANA754.0NANANA
us-gaap:LiabilitiesCurrent ▇▆▆▅█▆▅▅▅▅▅▅▅▅▅▅▅▅▄▅▄▄▄▄▄▄▄▅▅▅▄▄▄▄▁5440.04536.04490.03839.06015.04584.03888.03882.03973.03961.03244.03379.03655.03587.03979.03354.03311.03512.02872.03286.02995.02965.02813.02761.02970.02684.02650.03231.03321.03291.03172.02760.02424.02452.0385.0NANANA1230.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent NANA54.0NANANA53.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ▅▆▅▅▅▅▅▅▅▅▂▂▂▂▂▂▂▂▁▁▃▄▁▂▂▂▃▇█▆▇▃▃▂▂109.0128.094.098.0102.0101.094.0110.097.0102.032.029.021.024.020.028.022.027.05.015.048.066.03.033.017.029.040.0157.0173.0128.0150.045.044.025.037.0NANANA85.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:LongTermDebt ██▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▁18973.018108.017429.015510.016854.015143.015476.014721.014424.014039.013388.013398.013270.014113.013954.013492.013524.013354.08018.08119.07531.07118.06896.06802.06557.06471.05852.06074.05939.04668.05555.04881.04363.02419.0540.0NANANA1295.0NANANA
us-gaap:LongTermDebtNoncurrent ███▇▇▇▇▇▇▇▆▆▆▇▆▆▆▆▄▄▄▄▄▃▃▃▃▃▃▂▃▃▃▂▁17420.017330.016686.015414.014980.014553.015416.014707.014411.014026.013371.013380.013252.014077.013186.013445.013519.013306.08013.07510.07275.06862.06626.06546.06299.06213.05595.05320.05177.03898.04778.04385.04359.02415.0536.0NANANA541.0NANANA
us-gaap:MinorityInterest ▄▄▄▄▅▅▅▅▅▅▄▅▅▅▅▅▅▅▅▅▅▅▆▆▆▇▇▇▇██▇██▁4120.04228.04510.05188.05478.05535.05630.05661.05885.06488.05103.05509.05577.05498.05631.05615.05636.05796.05960.06288.06404.06704.07198.07448.07884.08332.08778.08573.08961.09736.09801.09560.09937.010474.0-8.0NANANA-10.0NANANA
us-gaap:OtherLiabilitiesNoncurrent ██████▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▁1055.01083.01101.01091.01121.01115.01047.01006.01011.0978.0864.0886.0884.0891.0779.0786.0777.0762.0751.0765.0716.0626.0561.0502.0354.0354.0348.0375.0204.0225.0234.0263.0276.0285.0131.0NANANA251.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent NANA453.0NANANA495.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA80.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA75.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA66.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA66.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA272.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:StockholdersEquity ▇▆▇▇█▇█████████▇▇▇▅▄▄▄▄▄▄▄▄▆▆▆▆▆▆▆▁14888.014670.015091.016192.016610.016167.016295.016517.016596.016707.016595.016860.016888.016977.016943.015839.015448.014980.011756.011705.011647.011381.010933.010994.011075.011308.011398.014021.013976.014141.014081.014419.014376.014277.06440.0NANANA5259.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▅▅▅▅▅▆▆▆▆▇▇█████▁19008.018898.019601.021380.022088.021702.021925.022178.022481.023195.021698.022369.022465.022475.022574.021454.021084.020776.017716.017993.018051.018085.018131.018442.018959.019640.020176.022594.022937.023877.023882.023979.024313.024751.06432.0NANANA5249.0NANANA
 us-gaap:CommonStockValue lmca:EconomicPerformanceGroup,us-gaap:StatementClassOfStock lmca:LibertyFormulaOneGroup,us-gaap:CommonClassC██████████████████▁2.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.02.01.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdditionalPaidInCapital ▅▅▆▆▇▅▆▆▆▇▆▇▇████▇▁2225.02428.02688.02943.03110.02371.02575.02780.03016.03261.02984.03246.03533.03764.03892.03900.03695.03331.087.0NANANANANANANANA2057.02036.02255.02217.03115.03153.03148.03348.0NANANA3564.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▇▇▇████████████▇▇▇▇▇▆▆▆▆▆▆▆▇▇▇▇▆▆▆▁12621.012204.012320.013225.013339.013671.013748.013793.013600.013484.013644.013684.013419.013247.013081.011968.011800.011706.011727.011608.011426.011346.010981.011037.011112.011333.011416.011964.011931.011881.011859.011307.011237.011141.03079.0NANANA1665.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▄▆▄█▇▂▁▃▂▂▁▁▂▂▂▂▁▁▂▂▂▂▂▂▂▃▃▃▃▃▃▃▃▄37.033.078.019.0156.0120.0-33.0-61.0-25.0-43.0-38.0-75.0-69.0-39.0-35.0-34.0-52.0-62.0-62.0-54.0-51.0-46.0-51.0-46.0-40.0-28.0-21.0-3.06.04.04.0-4.0-15.0-13.012.0NANANA29.0NANANA
us-gaap:MinorityInterest ▄▄▄▄▅▅▅▅▅▅▄▅▅▅▅▅▅▅▅▅▅▅▆▆▆▇▇▇▇██▇██▁4120.04228.04510.05188.05478.05535.05630.05661.05885.06488.05103.05509.05577.05498.05631.05615.05636.05796.05960.06288.06404.06704.07198.07448.07884.08332.08778.08573.08961.09736.09801.09560.09937.010474.0-8.0NANANA-10.0NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues NANA0.00.0754.0NANANANANANANANANA0.00.00.01617.00.0NANANANANANANANANANANANA-28.010.057.0NANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANA0.00.0754.0NANANANANANANANANA0.00.00.01616.00.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▄▅▇▆▂▅▆▇▇█▃▃▁64.066.084.073.049.071.078.079.079.089.055.054.042.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▄▄14.014.0NANANANANANANA19.015.015.014.015.015.015.015.015.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▅▇▃▄▆▆▆▆▇▆▄▇▆▅▆▄▅▆▅▅█▄▃▄▄▄▃▄▄▄▄▄▄▃▁▁▂738.0497.0674.0187.0312.0557.0543.0598.0523.0649.0521.0367.0644.0624.0419.0574.0336.0403.0520.0389.0448.0814.0338.0193.0367.0315.0324.0237.0270.0294.0347.0282.0268.0339.0183.0-16.0-39.0108.0NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▅▆▆▆▇▆▆▇▇▇▇▇▆▆▆▅▃▆▅▇▆▆▇▇▇▇▆▆▆▆▇▁▇▇▅▇█-38.0-716.0-427.0-106.0-145.0-58.0-96.0-102.0258.0254.012.0-82.0124.0-424.0-223.0-446.0-671.0-1797.0-254.0-924.039.0-125.0-337.0-66.0-27.0144.0-10.0-132.0-158.0-111.0-524.0-35.0-2562.0357.0332.0-706.0-4.0592.0NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▆▁█▅▅▄▃▃▄▄▂▄▅▄▅█▄▅▅▄▄▄▃▅▅▄▅▃▅▅▇▄▄▅▄▃267.0383.0652.0-2147.02031.038.081.0-469.0-700.0-685.0-531.0-398.0-1281.0-170.053.0-91.04.01902.0-644.0246.0140.0-288.0-388.0-329.0-722.032.0-10.0-294.077.0-894.094.0-13.01331.0-599.0-185.0-1.0-152.0-829.0NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▆▅▆▁█▅▅▄▅▅▄▄▄▄▅▄▄▅967.0162.0903.0-2057.02196.0529.0533.022.080.0219.01.0-112.0-516.032.0253.040.0-327.0509.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▇▆▆▆▆▇▆▇▇▇▇▇▇▇▁▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▇▇▇▅▆▇█▇42.0-143.0-52.0-9.0-73.039.0-76.081.061.054.035.060.052.020.0-1350.0110.050.0126.020.0227.066.0114.077.017.011.070.082.070.032.0-93.018.085.0102.0-377.0-51.0106.0364.031.0NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▅▇▃▄▆▆▆▆▇▆▄▇▆▅▆▄▅▆▅▅█▄▃▄▄▄▃▄▄▄▄▄▄▃▁▁▂738.0497.0674.0187.0312.0557.0543.0598.0523.0649.0521.0367.0644.0624.0419.0574.0336.0403.0520.0389.0448.0814.0338.0193.0367.0315.0324.0237.0270.0294.0347.0282.0268.0339.0183.0-16.0-39.0108.0NANANANA
us-gaap:NetIncomeLoss ▂▂▁▂▁▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂417.0-116.0-905.0-114.0-326.0-76.0-45.0193.0116.0-158.0-40.0268.0172.0131.01113.0168.094.0-21.0119.0115.080.0365.044.0-22.061.0-19.073.033.050.022.0552.076.096.08062.0106.0221.0937.0150.0NANANANA
us-gaap:ProfitLoss ▂▂▁▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▃▂528.0-14.0-1088.0-43.0-262.02.020.0262.0192.0-127.031.0366.0255.0213.01429.0261.0156.044.0186.0169.0140.0427.089.041.099.019.0130.087.0106.072.0619.0116.0158.08110.0103.0220.0938.0151.0NANANANA
us-gaap:ShareBasedCompensation ▆▆█▆▄▆▇▇▇█▅▅▅▅▅█▅▄▄▄▄▄▅▅▅▄▆▅▅▅▅▅▅▄▅▁▁▁60.063.081.068.045.067.074.076.076.086.047.046.053.046.048.085.053.044.041.041.034.034.057.056.047.044.066.053.049.049.052.052.048.041.048.07.05.06.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▅▆▆▆▇▆▆▇▇▇▇▇▆▆▆▅▃▆▅▇▆▆▇▇▇▇▆▆▆▆▇▁▇▇▅▇█-38.0-716.0-427.0-106.0-145.0-58.0-96.0-102.0258.0254.012.0-82.0124.0-424.0-223.0-446.0-671.0-1797.0-254.0-924.039.0-125.0-337.0-66.0-27.0144.0-10.0-132.0-158.0-111.0-524.0-35.0-2562.0357.0332.0-706.0-4.0592.0NANANANA
us-gaap:PaymentsToAcquireProductiveAssets ▃▃▄▄▄▃▆▄▄▄▄▂▃▃▄▅▄▅█▅▃▂▄▁▃▂▁▂▂▂▃▂▁▁99.091.0136.0110.0118.088.0172.0117.0108.0113.0138.074.0102.089.0110.0141.0110.0156.0250.0158.093.067.0120.037.075.064.041.042.045.066.075.068.038.026.0NANANANANANANANA
us-gaap:PaymentsToAcquireInvestments ▂▂▁▁▁▂▁▁▁▁▁▁▁▅▂▄▅▁▁█▁▁127.058.019.07.05.082.04.05.09.011.011.04.06.0393.0102.0318.0437.05.022.0751.00.011.0NANANANA14.00.0167.02.01.00.02566.018.0293.01216.0205.02.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▆▁█▅▅▄▃▃▄▄▂▄▅▄▅█▄▅▅▄▄▄▃▅▅▄▅▃▅▅▇▄▄▅▄▃267.0383.0652.0-2147.02031.038.081.0-469.0-700.0-685.0-531.0-398.0-1281.0-170.053.0-91.04.01902.0-644.0246.0140.0-288.0-388.0-329.0-722.032.0-10.0-294.077.0-894.094.0-13.01331.0-599.0-185.0-1.0-152.0-829.0NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▇▃▅▁▅▃▃▆▅▃▄▂▁▄▃█▃▅▂▂▃▂▂▂▁▄▂▁2704.01090.01860.0203.01982.0853.01002.02139.01966.0913.01307.0727.0266.01317.0877.03223.0753.01844.0726.0566.01118.0335.0434.0436.068.01275.0540.0270.0NANA1712.01402.0NANA500.00.0NANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▅▂▂▅▂▂▂▆▅▃▃▂▄▄▂█▂▄▃▁▃▁▂▁▁▃▂▁▃▃▃▃▃▁▂▁▁▃1920.0593.0336.01711.0512.0372.0526.01958.01646.0741.01043.0596.01264.01154.0288.03028.0637.01154.0873.060.0705.0111.0378.0157.03.0658.0276.087.0752.0821.01048.0886.0844.01.0504.00.00.0750.0NANANANA
 us-gaap:PaymentsOfDividends dei:LegalEntity lmca:SiriusXmHoldings▁▄█60.061.062.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▅▄▅▃▁▅▃▃▄█▄▆▇▂136.0107.0114.066.00.0138.069.068.084.0222.098.0150.0187.031.0NANANANANANANANA47.03.0242.058.0NANA0.00.00.00.00.0140.081.08.0155.079.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31

Common Stock Value

us-gaap:CommonStockValue lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.01000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets lmca:LibertyFormulaOneGroup us-gaap:CommonClassC0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding lmca:EconomicPerformanceGroup

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

lmca:LibertyBravesGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value61616060616161616160605959595945
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value2402392382372332332332332322322332182141798584
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding393.4391.8396.7395.0382.0382.0382.0382.0380.3386.7388.3369.5362.7303.4144.1186.7

lmca:LibertySiriusXmGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value337339344329319321323327335337340340339339337337
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding552.5555.7573.3548.3523.0526.2529.5536.1549.2561.7566.7576.3574.6574.6571.2748.9

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic lmca:EconomicPerformanceGroup

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

lmca:LibertyBravesGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value52525151515151515151514949494936
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value2322322322322322312312312312312312162071738483
Percentage of WeightedAverageNumberOfSharesOutstandingBasic446.2446.2454.9454.9454.9452.9452.9452.9452.9452.9452.9440.8422.4353.1171.4230.6

lmca:LibertySiriusXmGroup


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value335338343328315317319323330333336336335335335335
Percentage of WeightedAverageNumberOfSharesOutstandingBasic644.2650.0672.5643.1617.6621.6625.5633.3647.1652.9658.8685.7683.7683.7683.7930.6

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

lmca:LibertyFormulaOneGroup, lmca:CommonClassAandC


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-30
Value6.07.06.012
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, lmca:CommonClassAandC


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value222225252222
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount366.7314.3416.7208.30.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic lmca:EconomicPerformanceGroup

us-gaap:EarningsPerShareBasic

lmca:LibertyBravesGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.48-1.13-1.22-0.61-0.751.04-0.860.240.51-1.390.350.8-0.04-1.020.080.45-0.04-1.0-0.82-0.450.89
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.24-0.20.18-0.41-0.86-1.48-0.550.18-0.33-0.64-0.80.180.04-0.071.8-0.17-0.13-0.550.480.49-0.54
Percentage of EarningsPerShareBasic50.017.7-14.867.2114.7-142.364.075.0-64.746.0-228.622.5-100.06.92250.0-37.8325.055.0-58.5-108.9-60.7

lmca:LibertySiriusXmGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.01-0.03-2.660.03-0.270.680.40.440.520.190.390.560.50.62.070.540.370.370.360.290.24
Percentage of EarningsPerShareBasic210.42.7218.0-4.936.065.4-46.5183.3102.0-13.7111.470.0-1250.0-58.82587.5120.0-925.0-37.0-43.9-64.427.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted lmca:EconomicPerformanceGroup

us-gaap:EarningsPerShareDiluted

lmca:LibertyBravesGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.39-1.13-0.43-0.61-0.75-0.69-0.860.160.46-1.39-0.070.8-0.04-1.020.070.45-0.04-1.0-0.82-0.450.11
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.24-0.20.18-0.41-0.86-1.48-0.550.18-0.33-0.64-0.80.180.04-0.071.79-0.17-0.13-0.550.470.48-0.54
Percentage of EarningsPerShareDiluted61.517.7-41.967.2114.7214.564.0112.5-71.746.01142.922.5-100.06.92557.1-37.8325.055.0-57.3-106.7-490.9

lmca:LibertySiriusXmGroup


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.0-0.03-2.640.03-0.270.570.390.440.520.190.380.550.490.592.040.540.360.370.350.280.24
Percentage of EarningsPerShareDiluted256.42.7614.0-4.936.0-82.6-45.3275.0113.0-13.7-542.968.8-1225.0-57.82914.3120.0-900.0-37.0-42.7-62.2218.2

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6063816845677476766547465346
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.80.02.52.43.32.82.72.73.22.32.02.43.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

lmca:CustomerServiceAndBilling


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.01.02.01.01.02.01.01.01.01.01.01.01.01.0
Percentage of AllocatedShareBasedCompensationExpense3.31.62.51.52.23.01.41.31.31.52.12.21.92.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.00.00.10.10.00.00.00.00.00.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:CustomerServiceAndBilling0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:OtherCostOfSubscriberServices


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.01.02.01.02.01.05.01.02.01.01.01.02.01.0
Percentage of AllocatedShareBasedCompensationExpense3.31.62.51.54.41.56.81.32.61.52.12.23.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.00.00.10.00.20.00.10.00.00.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:OtherCostOfSubscriberServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:ProgrammingAndContentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.08.08.09.07.08.08.08.07.07.07.03.010.08.0
Percentage of AllocatedShareBasedCompensationExpense13.312.79.913.215.611.910.810.59.210.814.96.518.917.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.00.30.40.40.30.30.20.30.30.10.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:ProgrammingAndContentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpense


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value7.010.0119.01115139.05.04.04.0
Percentage of AllocatedShareBasedCompensationExpense11.715.916.220.016.419.717.113.810.97.58.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.40.40.50.50.50.50.40.20.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingExpense0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4143574626454851534734363632
Percentage of AllocatedShareBasedCompensationExpense68.368.370.467.657.867.264.967.169.772.372.378.367.969.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.90.01.71.42.21.81.81.92.31.71.61.62.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value421-161.0-846.0-251.0-290.077-17.0157134-163.0-3.02621421251112193106-21.01111117537039-28.049-26.06324522256093948034107206935149
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.6-7.10.0-9.2-15.23.8-0.65.54.8-8.1-0.111.36.58.255.89.35.0-1.58.48.05.530.73.2-2.24.0-2.45.82.04.52.254.68.48.71018.322.937.1174.133.9

us-gaap:ComprehensiveIncomeNetOfTax lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value25-60.0-62.0-32.0-39.047-45.01327-69.01840-1.0-55.04.022-3.0-51.0-41.0-22.033
Percentage of ComprehensiveIncomeNetOfTax5.937.37.312.713.461.0264.78.320.142.3-600.015.3-0.7-44.00.411.4-2.8242.9-36.9-19.844.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.9-2.70.0-1.2-2.02.3-1.70.51.0-3.40.91.7-0.0-3.60.21.1-0.1-3.7-3.1-1.62.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup11.6-375.00.0-29.1-354.5213.60.06.113.0-313.60.020.0-0.5-196.40.011.9-1.7-1020.00.0-20.225.2

lmca:LibertyFormulaOneGroup


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value55-53.047-117.0-198.0-244.0-110.012-68.0-161.0-140.031-14.0-18.0416-35.0-20.0-94.03337-48.0
Percentage of ComprehensiveIncomeNetOfTax13.132.9-5.646.668.3-316.9647.17.6-50.798.84666.711.8-9.9-14.437.4-18.1-18.9447.629.733.3-64.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.9-2.40.0-4.3-10.4-12.1-4.20.4-2.4-8.0-7.01.3-0.6-1.220.9-1.7-0.9-6.72.52.7-3.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup11.0-29.40.0-19.6-825.0-625.60.01.9-11.0-65.40.04.8-2.4-15.80.0-7.0-3.2-97.90.00.00.0

lmca:LibertySiriusXmGroup


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value341-48.0-831.0-102.0-53.0274138132175671191911571986922061291241199680
Percentage of ComprehensiveIncomeNetOfTax81.029.898.240.618.3355.8-811.884.1130.6-41.1-3966.772.9110.6158.462.2106.7121.7-590.5107.286.5106.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.9-2.10.0-3.7-2.813.65.34.66.23.35.98.37.113.134.710.06.08.99.06.95.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup15.8-2.30.0-5.0-2.814.00.06.68.93.80.013.011.014.40.014.99.69.60.07.56.5

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-178.07468686767793464101807931593626566546065445924385754565067346248-3.0-1.01.01.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.02.73.63.42.62.32.81.73.24.43.65.215.84.52.94.75.03.94.45.43.64.62.03.55.24.64.84.96.53.15.86.1-0.6-0.20.20.2

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value534-58.0-1024.0-177.0-222.014550224213-129.0613632222041427286168441771651354358331731212078108726271271568082104205936150
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.6-2.60.0-6.5-11.67.21.97.87.6-6.43.015.710.113.471.613.87.93.213.411.99.936.16.92.46.01.111.06.69.37.161.211.414.51024.322.336.9174.334.1

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

lmca:CustomerServiceAndBilling


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value127117122119122118123120119113989595
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.45.20.04.46.45.94.74.24.25.64.94.14.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:CustomerServiceAndBilling0.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:Formula


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value398843645511643371434441148328450414
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization313.471.8298.4463.013.136.4301.6361.7370.6131.0334.7473.7435.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.83.70.020.20.82.114.215.215.77.416.319.418.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:Formula79.446.70.092.366.7110.30.068.671.160.20.069.670.8

lmca:OtherCostOfSubscriberServices


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value58525451474463524737343033
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization45.744.444.342.938.537.351.243.339.532.734.731.634.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.30.01.92.52.22.41.81.71.81.71.31.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:OtherCostOfSubscriberServices0.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:ProgrammingAndContentExpense


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value13513013012311011812411611610610397105
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization106.3111.1106.6103.490.2100.0100.896.797.593.8105.1102.1110.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.75.80.04.55.85.94.74.14.15.35.14.24.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:ProgrammingAndContentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:RevenueShareAndRoyalties


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value663640662602587570607592600492337343404
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization522.0547.0542.6505.9481.1483.1493.5493.3504.2435.4343.9361.1425.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.128.40.022.030.728.323.220.721.424.516.814.818.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:RevenueShareAndRoyalties0.00.00.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2254211233122412169517672317234923441812163017841825129016631683171811361048103310384239919631051836889935929856836862842629132914413367
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.493.70.088.388.887.888.582.283.690.181.177.183.085.083.481.580.381.479.374.676.035.182.075.086.077.381.279.080.184.781.677.778.179.7284.625.924.815.2

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value155-49.0-239.016-180.01.0-144.014-87.0-98.0-140.0-31.058153-45.018-49.0-12.0
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.4-2.20.00.6-9.40.0-5.50.5-3.1-4.9-7.0-1.32.610.1-2.30.9-2.3-0.9

us-gaap:GainLossOnInvestments us-gaap:FinancialInstrument

lmca:BondHedgeChangeInFairValue


Gain
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value4613-32.073-323.068-12.051-41.097206.04678
Percentage of GainLossOnInvestments29.7-26.5-200.0-40.6-32300.0485.713.8-52.0132.3167.213.133.3-93.9-650.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.60.6-1.23.8-16.02.4-0.42.5-1.84.41.30.32.15.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:BondHedgeChangeInFairValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:DebtMeasuredAtFairValue


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-71.0-113.0-440.044-262.0544-289.0-62.0-71.0-162.020726-133.030110-42.0-78.0-116.0
Percentage of GainLossOnInvestments-45.8230.6184.1275.0145.654400.0200.7-442.981.6165.3-147.9-83.9-229.319.6-244.4-233.3159.2966.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.5-5.00.01.6-13.727.0-11.0-2.2-2.5-8.110.31.1-6.02.05.5-2.0-3.6-8.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:DebtMeasuredAtFairValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:FairValueOptionSecurities


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value16749354.022-135.021184031-131.0-25.08474-112.056-10.030
Percentage of GainLossOnInvestments107.7-100.0-14.625.0-12.2-13500.0-14.6128.6-46.0-31.693.680.6144.848.4248.9311.120.4-250.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.82.20.00.11.2-6.70.80.61.41.5-6.5-1.13.84.9-5.62.7-0.52.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:FairValueOptionSecurities0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:OtherFinancialInstruments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value132.0110.0-13.0-85.016-10.0-44.0-18.0-46.09.010.02915-2.0-7.0-4.0
Percentage of GainLossOnInvestments8.4-4.1-4.60.07.2-8500.0-11.1-71.450.618.432.9-29.017.219.0-33.3-11.114.333.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.10.00.0-0.7-4.20.6-0.4-1.6-0.9-2.30.40.51.90.8-0.1-0.3-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:OtherFinancialInstruments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

us-gaap:GainsLossesOnExtinguishmentOfDebt

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldings4.625SeniorNotesDue2023And5.375SeniorNotesDue2025


Gains
Period End2020-09-30
Value-40.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup lmca:SiriusXmHoldings4.625SeniorNotesDue2023And5.375SeniorNotesDue20250.0

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value584-145.0-1129.0-36.0-308.038-40.0360262-69.0734183222288638523612020330322968414970134105165150181-35.065421026277494132501237112
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.3-6.40.0-1.3-16.11.9-1.512.69.3-3.43.618.114.615.04.318.611.08.615.421.916.856.812.35.511.09.715.112.715.6-3.563.818.924.3982.188.445.0230.425.5

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value584-145.0-1129.0-36.0-308.038-40.0360262-69.0734183222288638523612020330322968414970134105165150181-35.08560.02627749120.01237112
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.3-6.40.0-1.3-16.11.9-1.512.69.3-3.43.618.114.615.04.318.611.08.615.421.916.856.812.35.511.09.715.112.715.6-3.583.50.024.3982.12.60.0230.425.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value56-131.0-41.07.0-46.036-60.098705842526715-1343.01248076171348925760293586356375-107.03594104-361.0-104.08837040211
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.9-5.80.00.3-2.41.8-2.33.42.52.92.12.23.01.0-67.46.03.75.41.39.76.521.35.02.32.98.03.25.36.5-10.63.48.59.6-45.8-22.315.968.99.121.7

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value15815815415316316416216916715915315015315014315914914090989084848483777070625354392811271.02.03.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.57.00.05.68.58.16.25.96.07.97.66.57.09.97.27.77.010.06.87.16.67.07.06.56.87.16.45.95.35.25.33.52.61.45.80.20.40.7

Litigation Settlement Expense

us-gaap:LitigationSettlementExpense

us-gaap:LitigationSettlementExpense


Litigation
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302015-12-312015-09-302015-06-30
Value0.00.00.0-16.00.00.00.0250.00.0690.00.0108
Percentage of LitigationSettlementExpense0.00.00.0100.00.00.00.0100.00.00.0100.00.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0-0.80.00.00.01.20.00.03.10.00.08.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value417-116.0-905.0-114.0-326.0-76.0-45.0193116-158.0-40.0268172131111316894-21.01191158036544-22.061-19.07333502255276968062106221937150
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.5-5.10.0-4.2-17.1-3.8-1.76.84.1-7.9-2.011.67.88.655.88.14.4-1.59.08.35.930.33.6-1.75.0-1.86.72.84.32.253.96.88.91021.822.739.8174.534.1

us-gaap:NetIncomeLoss lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value25-59.0-62.0-31.0-38.053-44.01226-71.01841-2.0-52.04.022-2.0-49.0-40.0-22.032-25.0-11.010.0-4.0-15.0
Percentage of NetIncomeLoss6.050.96.927.211.7-69.797.86.222.444.9-45.015.3-1.2-39.70.413.1-2.1233.3-33.6-19.140.0-6.8-25.0-45.5-6.678.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.9-2.60.0-1.1-2.02.6-1.70.40.9-3.50.91.8-0.1-3.40.21.1-0.1-3.5-3.0-1.62.3-2.1-0.90.8-0.3-1.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup11.6-368.80.0-28.2-345.5240.90.05.712.5-322.70.020.5-1.1-185.70.011.9-1.1-980.00.0-20.224.4-625.00.08.4-3.9-300.0

lmca:LibertyFormulaOneGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value55-46.042-95.0-200.0-343.0-127.041-77.0-148.0-184.0429.0-17.0415-37.0-27.0-96.04041-45.0291
Percentage of NetIncomeLoss13.239.7-4.683.361.3451.3282.221.2-66.493.7460.015.75.2-13.037.3-22.0-28.7457.133.635.7-56.279.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.9-2.00.0-3.5-10.5-17.0-4.81.4-2.7-7.4-9.21.80.4-1.120.8-1.8-1.3-6.93.03.0-3.324.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup11.0-25.60.0-15.9-833.3-879.50.06.5-12.4-60.20.06.51.5-14.90.0-7.4-4.4-100.00.00.00.00.0

lmca:LibertySiriusXmGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value337-11.0-885.012-88.021412614016761126185165200694183123124119968210170895347
Percentage of NetIncomeLoss80.89.597.8-10.527.0-281.6-280.072.5144.0-38.6-315.069.095.9152.762.4108.9130.9-590.5100.083.5102.527.7159.1-404.586.9-247.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.7-0.50.00.4-4.610.64.84.96.03.06.38.07.513.234.88.95.78.99.06.96.08.45.86.94.34.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup15.6-0.50.00.6-4.711.00.07.08.43.50.012.611.514.50.013.39.19.60.07.56.68.40.07.64.74.4

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value11149-183.0716478656976317198838231693626567546062456338385754565067406248-3.0-1.01.01.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.92.20.02.63.43.92.52.42.71.53.54.23.85.415.84.52.94.75.13.94.45.13.74.93.13.55.24.64.84.96.53.65.86.1-0.6-0.20.20.2

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted lmca:EconomicPerformanceGroup

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

lmca:LibertyBravesGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value24-31.0-26.0-21.0-31.0-42.0-28.010.028-45.0-4.05426-47.0-24.0341.0-21.03.05.0
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-1.40.0-0.8-1.6-2.1-1.10.41.0-2.2-0.22.31.2-3.1-1.21.60.0-1.50.20.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup11.1-193.80.0-19.1-281.8-190.90.04.713.5-204.50.027.014.3-167.90.018.40.6-420.02.80.0

lmca:LibertyFormulaOneGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value79-45.066-72.0-172.0-343.0-127.041-77.0
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted329.2145.2-253.8342.9554.8816.7453.6410.0-275.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.7-2.00.0-2.6-9.0-17.0-4.81.4-2.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup15.8-25.00.0-12.1-716.7-879.50.06.5-12.4

lmca:LibertySiriusXmGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value337-11.0-885.012-92.018312614016761
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted1404.235.53403.8-57.1296.8-435.7-450.01400.0596.4-135.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.7-0.50.00.4-4.89.14.84.96.03.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup15.6-0.50.00.6-4.99.40.07.08.43.5

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-38.0-287.0-526.0-356.0-522.0-208.0-342.0-147.0-199.0-269.0-306.0-113.0-52.01.0-245.03.0-186.0-139.0-70.0-49.0-99.0-97.0-68.0-251.0-37.0-140.0-41.0-99.0-50.0-190.0465-38.0267589672401235144
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-12.70.0-13.0-27.3-10.3-13.1-5.1-7.1-13.4-15.2-4.9-2.40.1-12.30.1-8.7-10.0-5.3-3.5-7.2-8.1-5.6-19.5-3.0-13.0-3.7-8.4-4.3-18.845.4-3.42.4961.914.343.2230.032.7

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value622142-603.0320214246302507461200379531374227331382422259273352328781217321171245206249231155189248236160251111018929311194459
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.66.30.011.711.212.211.517.816.49.918.922.917.015.016.618.519.718.620.725.424.064.918.025.014.022.718.821.019.915.318.422.321.920.35.420.018.820.230.120.617.547.2

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-30
Value10.04.0221215-37.09.0-8.010.09.0-23.010.0-2.04.0-4.0226.0-1.0-2.0-1.0-2.0-9.0-31.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.20.00.40.8-1.80.3-0.30.40.4-1.10.4-0.10.3-0.21.10.3-0.1-0.1-0.1-0.2-0.7-2.5

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.0-44.064-134.04014330-38.021-2.030-3.0-33.0-9.0-2.025-9.0-4.0-5.08.0-6.0-10.0-26.0-7.0-10.0-9.02.00.08.011-2.0-28.01.0-15.0-2.0-1.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2-2.00.0-4.92.17.11.1-1.30.7-0.11.5-0.1-1.5-0.6-0.11.2-0.7-0.3-0.40.7-0.5-0.8-2.1-0.6-0.9-0.80.20.00.81.0-0.2-3.50.2-2.7-0.4-0.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-03-31
Value4.0-45.059-137.03615328-36.018-5.037-6.0-30.0-6.0-1.018-8.05.0
Percentage of OtherComprehensiveIncomeLossNetOfTax66.7102.392.2102.290.0107.093.394.785.7250.0123.3200.090.966.750.072.088.962.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-2.00.0-5.01.97.61.1-1.30.6-0.21.8-0.3-1.4-0.4-0.10.9-0.60.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2.01.05.03.04.0-10.02.0-2.03.03.0-7.03.0-3.0-3.0-1.07.0-1.0-1.00.03.0-1.0-4.0
Percentage of OtherComprehensiveIncomeLossNetOfTax33.3-2.37.8-2.210.0-7.06.75.314.3-150.0-23.3-100.09.133.350.028.011.125.0-0.037.516.740.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.00.10.2-0.50.1-0.10.10.1-0.30.1-0.1-0.2-0.10.3-0.1-0.10.00.2-0.1-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value131511-32.0141727-47.0218.04110.0216.06.0-11.0-4.017-21.05.05.07.0-13.04.06.02.0-8.0-13.0-2.0-38.0-42.0-67.0-1.0-5.0-18.0498.02.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.70.0-1.20.70.81.0-1.60.70.42.00.41.00.40.3-0.5-0.21.2-1.60.40.40.6-1.10.30.50.2-0.7-1.1-0.2-3.8-4.1-6.0-0.1-0.6-3.98.81.50.5

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value528-14.0-1088.0-43.0-262.02.020262192-127.0313662552131429261156441861691404278941991913087106726191161588110103220938151
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.4-0.60.0-1.6-13.70.10.89.26.8-6.31.515.811.614.071.712.67.33.214.112.210.235.57.43.28.11.811.97.39.17.160.410.514.71027.922.139.6174.734.3

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-183.07164786569763171988382316936265675560624563383857
Percentage of ProfitLoss16.8-165.1-24.43900.0325.026.339.6-24.4229.026.832.538.522.135.639.7147.736.032.542.914.550.6153.738.4200.043.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.02.63.43.92.52.42.71.53.54.23.85.415.84.52.94.75.14.04.45.13.74.93.13.55.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-905.0-114.0-326.0-76.0-45.0193116-158.0-40.0268172131111316894-21.01191168036544-22.061-19.073
Percentage of ProfitLoss83.2265.1124.4-3800.0-225.073.760.4124.4-129.073.267.561.577.964.460.3-47.764.068.657.185.549.4-53.761.6-100.056.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-4.2-17.1-3.8-1.76.84.1-7.9-2.011.67.88.655.88.14.4-1.59.08.45.930.33.6-1.75.0-1.86.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value287622542709273219092013261928562805201220092315219915171994206521401395132113851366120412081284122210811095118411601011102511101078789467555537440973540538973
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2161635110112234212208223220018228201851765.0181091314.0161191035.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.50.71.34.00.61.11.37.47.41.11.68.68.31.81.09.08.20.41.47.99.60.31.39.38.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.50.71.34.00.61.11.37.47.41.11.68.68.31.81.09.08.20.41.47.99.60.31.39.38.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value501180485597243952363362024648164758511457050161696
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.48.017.921.91.31.920.022.222.112.223.927.926.67.528.624.328.86.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.48.017.921.91.31.920.022.222.112.223.927.926.67.528.624.328.86.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value21592058218920251874195220622011197717441496146814321375140413791348129413031276123512001192116511191076
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.191.380.874.198.297.078.770.470.586.774.563.465.190.670.466.863.092.898.692.190.499.798.790.791.699.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.191.380.874.198.297.078.770.470.586.774.563.465.190.670.466.863.092.898.692.190.499.798.790.791.699.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:ProductOrService

lmca:LibertyBravesGroup, us-gaap:CorporateNonSegment, lmca:Baseball


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2047.01025.0122031981419017220
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.10.33.70.30.67.17.10.78.27.81.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.10.33.70.30.67.17.10.78.27.81.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup us-gaap:CorporateNonSegment lmca:Baseball100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyBravesGroup, us-gaap:CorporateNonSegment, lmca:DevelopmentLeases


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value129.08.06.010.09.010.08.010.010.08.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.30.30.50.30.40.40.40.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.30.30.50.30.40.40.40.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup us-gaap:CorporateNonSegment lmca:DevelopmentLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:Formula, lmca:FormulaOne


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-06-302018-03-31
Value464159151753119849185
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.17.10.80.818.99.822.35.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.17.10.80.818.99.822.35.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup us-gaap:OperatingSegments lmca:Formula lmca:FormulaOne100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:OtherRevenue, lmca:FormulaOne


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value73122680894887
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.61.32.83.22.43.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.61.32.83.22.43.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup us-gaap:OperatingSegments lmca:OtherRevenue lmca:FormulaOne100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:PrimaryFormulaOneRevenue, lmca:FormulaOne


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value5241213553531198560
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.20.60.619.418.99.824.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.20.60.619.418.99.824.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup us-gaap:OperatingSegments lmca:PrimaryFormulaOneRevenue lmca:FormulaOne100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:ProductServiceOrOther, lmca:FormulaOne


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-06-302018-03-31
Value37219.02289489429
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.30.90.51.13.22.44.31.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.30.90.51.13.22.44.31.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup us-gaap:OperatingSegments lmca:ProductServiceOrOther lmca:FormulaOne100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:MusicRoyaltyAndOther, lmca:SiriusXmHoldings


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value38363541
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.61.82.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.61.82.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup us-gaap:OperatingSegments lmca:MusicRoyaltyAndOther lmca:SiriusXmHoldings100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:OtherRevenue, lmca:SiriusXmHoldings


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value39354144413640
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.82.01.51.51.81.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.82.01.51.51.81.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup us-gaap:OperatingSegments lmca:OtherRevenue lmca:SiriusXmHoldings100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:ProductEquipment, lmca:SiriusXmHoldings


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5157472541454141413735
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.82.51.71.32.01.61.52.01.81.72.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.82.51.71.32.01.61.52.01.81.72.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup us-gaap:OperatingSegments lmca:ProductEquipment lmca:SiriusXmHoldings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, us-gaap:Advertising, lmca:SiriusXmHoldings


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value429354345236285366358209464742
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.915.712.612.414.212.812.810.42.02.12.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.915.712.612.414.212.812.810.42.02.12.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup us-gaap:OperatingSegments us-gaap:Advertising lmca:SiriusXmHoldings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, us-gaap:SubscriptionAndCirculation, lmca:SiriusXmHoldings


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value16411611159415781585155615371458134113041258
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.171.558.382.778.754.554.872.557.959.382.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.171.558.382.778.754.554.872.557.959.382.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup us-gaap:OperatingSegments us-gaap:SubscriptionAndCirculation lmca:SiriusXmHoldings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

lmca:Formula


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value501180485597243952363362024648164758511457050161696
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.48.017.921.91.31.920.022.222.112.223.927.926.67.528.624.328.86.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.48.017.921.91.31.920.022.222.112.223.927.926.67.528.624.328.86.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:Formula100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:ProductServiceOrOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value21616351101122342122082235350518228-676.0428413221
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.50.71.34.00.61.11.37.47.41.117.621.88.31.8-33.920.719.315.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.50.71.34.00.61.11.37.47.41.117.621.88.31.8-33.920.719.315.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:ProductServiceOrOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:SiriusXmHoldingsRevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value215920582189202518741952206220111977174414961468
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.191.380.874.198.297.078.770.470.586.774.563.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.191.380.874.198.297.078.770.470.586.774.563.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:SiriusXmHoldingsRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

lmca:LiveNation


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value576291741366
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.012.93.967.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.012.93.967.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LiveNation100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value287622542709273219092013261928562805201220092315219915171994206521401395132113851366120412081284122210811095118411601011102511101078789467555537440973540538973
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value445410529423390408534440436402340295303265311324288239242235208201253207199202233209215216216207185154303374133
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.518.219.515.520.420.320.415.415.520.016.912.713.817.515.615.713.517.118.317.015.216.720.916.116.318.721.317.718.521.421.118.617.219.564.96.77.67.5

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value4565444465440044378946208439184418943645437004391040828416244180742540419964185341384410023137731563308893032629798306803111131430312073384534075336933454233943338843239683257719
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value160515721571162817021715159315941549147918051913193919471866180317341658154813691285999849
Percentage of Assets3.53.53.63.73.73.93.63.73.53.44.44.64.64.64.44.34.24.04.94.34.23.32.8
Percentage of Assets3.53.53.63.73.73.93.63.73.53.44.44.64.64.64.44.34.24.04.94.34.23.32.8
Percentage of Assets lmca:LibertyBravesGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value12029120011119111231115831136211505113611129811367109571148311589118421180212193122541248629951952
Percentage of Assets26.327.025.425.625.125.926.026.025.925.926.827.627.727.828.129.129.630.59.56.6
Percentage of Assets26.327.025.425.625.125.926.026.025.925.926.827.627.727.828.129.129.630.59.56.6
Percentage of Assets lmca:LibertyFormulaOneGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value3254031774320813161033499311083142131004311623137328292284762851428958285302811727643271012705127432273362698327001
Percentage of Assets71.371.572.972.272.570.871.171.071.371.469.368.468.268.167.967.266.866.186.286.988.589.090.6
Percentage of Assets71.371.572.972.272.570.871.171.071.371.469.368.468.268.167.967.266.866.186.286.988.589.090.6
Percentage of Assets lmca:LibertySiriusXmGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems

lmca:LibertyBravesGroup, us-gaap:CorporateNonSegment


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1605157215711628170217151593159415491479
Percentage of Assets3.53.53.63.73.73.93.63.73.53.4
Percentage of Assets3.53.53.63.73.73.93.63.73.53.4
Percentage of Assets lmca:LibertyBravesGroup us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, lmca:OperatingSegmentsAndCorporateNonSegment


Assetslmca:
Period End2020-12-312019-12-31
Value1119122481
Percentage of Assets25.450.9
Percentage of Assets25.450.9
Percentage of Assets lmca:LibertyFormulaOneGroup lmca:OperatingSegmentsAndCorporateNonSegment100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:CorporateNonSegment


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3109319325812424232716782474222521282107
Percentage of Assets6.87.25.95.55.03.85.65.14.94.8
Percentage of Assets6.87.25.95.55.03.85.65.14.94.8
Percentage of Assets lmca:LibertyFormulaOneGroup us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, lmca:OperatingSegmentsAndCorporateNonSegment


Assetslmca:
Period End2021-06-302021-03-312020-12-312019-12-31
Value44786426944267031421
Percentage of Assets98.196.097.071.1
Percentage of Assets98.196.097.071.1
Percentage of Assets lmca:LibertySiriusXmGroup lmca:OperatingSegmentsAndCorporateNonSegment100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, srt:ConsolidationEliminations


Assetslmca:
Period End2021-06-302021-03-312020-12-31
Value-12246.0-10920.0-10589.0
Percentage of Assets-26.8-24.6-24.1
Percentage of Assets-26.8-24.6-24.1
Percentage of Assets lmca:LibertySiriusXmGroup srt:ConsolidationEliminations100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:CorporateNonSegment


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16722106205110931246423553200159529
Percentage of Assets3.74.74.72.52.71.01.30.50.41.2
Percentage of Assets3.74.74.72.52.71.01.30.50.41.2
Percentage of Assets lmca:LibertySiriusXmGroup us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:FormulaOne


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8920880886108807925696849031913691709260
Percentage of Assets19.519.819.620.120.022.120.420.921.021.1
Percentage of Assets19.519.819.620.120.022.120.420.921.021.1
Percentage of Assets lmca:LibertyFormulaOneGroup us-gaap:OperatingSegments lmca:FormulaOne100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:LiveNation


Assetslmca:
Period End2021-06-302021-03-312020-12-31
Value122461092010589
Percentage of Assets26.824.624.1
Percentage of Assets26.824.624.1
Percentage of Assets lmca:LibertySiriusXmGroup us-gaap:OperatingSegments lmca:LiveNation100.0100.0100.0

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:SiriusXmHoldings


Assetslmca:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value30868296683003030517322533068530868308043100330844
Percentage of Assets67.666.768.269.769.869.969.970.670.970.2
Percentage of Assets67.666.768.269.769.869.969.970.670.970.2
Percentage of Assets lmca:LibertySiriusXmGroup us-gaap:OperatingSegments lmca:SiriusXmHoldings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

srt:ConsolidationEliminations


Assetsus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-520.0-882.0-680.0-576.0-267.0-330.0-314.0-309.0-309.0-226.0-248.0-202.0
Percentage of Assets-1.1-2.0-1.6-1.2-0.6-0.7-0.7-0.7-0.7-0.6-0.6-0.5
Percentage of Assets-1.1-2.0-1.6-1.2-0.6-0.7-0.7-0.7-0.7-0.6-0.6-0.5
Percentage of Assets srt:ConsolidationEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination


Assetsus-gaap:
Period End2020-12-312019-12-31
Value-839.0-330.0
Percentage of Assets-1.9-0.7
Percentage of Assets-1.9-0.7
Percentage of Assets us-gaap:IntersegmentElimination100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value260712499224403224092412022216222642146721219207151913019255193422006519422203992030020226136611357012838122411166712238121521179011031112511113898161066099649571764518932470
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.156.255.551.252.250.650.449.248.647.246.946.346.347.246.248.749.149.343.543.041.640.439.239.939.137.535.333.232.729.130.929.428.223.622.732.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value4565444465440044378946208439184418943645437004391040828416244180742540419964185341384410023137731563308893032629798306803111131430312073384534075336933454233943338843239683257719
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1488814670150911619216610161671629516517165961670716595168601688816977169431583915448149801175611705116471138110933109941107511308113981402113976141411408114419143761427764405259
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.633.034.337.035.936.836.937.838.038.040.640.540.439.940.337.837.336.537.537.137.737.536.735.835.636.036.541.441.042.040.842.542.444.177.468.1

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value53614203403032735381298924051936193117321082124113271919176314351433170810291472176811646912110247827372344217122741801249424812365345822113860
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.79.59.27.511.66.85.44.44.43.92.73.03.24.54.23.43.54.23.34.75.73.82.36.98.08.77.56.46.75.37.27.37.010.726.650.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302010-12-312009-12-31
Value3935299428311936399918011222694697633358355485104210297837441071562940122960220158879011726813775663771088117193719001353323646207084120903951
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.66.76.44.48.74.12.81.61.61.40.90.91.22.42.51.91.82.61.83.04.02.00.71.92.53.72.21.11.71.13.13.42.85.916.30.00.026.80.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity, lmca:EconomicPerformanceGroup

lmca:Anlbc, lmca:LibertyBravesGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value93103731362302415957419740447855
Percentage of CashAndCashEquivalentsAtCarryingValue2.43.42.67.05.813.44.88.25.915.311.212.416.15.3
Percentage of Assets0.20.20.20.30.50.50.10.10.10.20.10.10.20.1
Percentage of Assets lmca:Anlbc lmca:LibertyBravesGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:FormulaOne, lmca:LibertyFormulaOneGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5374292651393241011402354276260304589140165274297432
Percentage of CashAndCashEquivalentsAtCarryingValue13.614.39.47.28.156.132.951.039.641.18.412.718.413.416.035.039.940.3
Percentage of Assets1.21.00.60.30.72.30.90.80.60.60.10.10.20.30.40.70.71.1
Percentage of Assets lmca:FormulaOne lmca:LibertyFormulaOneGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:SiriusXmHoldings, lmca:LibertySiriusXmGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11245971331770401067921562
Percentage of CashAndCashEquivalentsAtCarryingValue28.62.02.51.744.32.28.711.430.89.8
Percentage of Assets2.50.10.20.13.80.10.20.20.50.1
Percentage of Assets lmca:SiriusXmHoldings lmca:LibertySiriusXmGroup0.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1681811512133083211421421271631077811311413212912811510710914944133134191157
Percentage of CashAndCashEquivalentsAtCarryingValue4.36.05.311.07.717.811.620.518.225.829.922.023.310.912.816.517.210.719.011.612.17.36.55.34.31.61.65.2
Percentage of Assets0.40.40.30.50.70.70.30.30.30.40.30.20.30.30.30.30.30.30.30.30.50.10.00.10.10.10.00.2
Percentage of Assets lmca:LibertyBravesGroup10.511.59.613.118.118.78.98.98.211.05.94.15.85.97.17.27.46.96.98.011.64.41.50.00.00.00.00.0

lmca:LibertyFormulaOneGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value22251783168415861767109458741933437216015119827028242044362616822055445676522896
Percentage of CashAndCashEquivalentsAtCarryingValue56.559.659.581.944.260.748.060.447.958.844.742.540.825.927.453.659.558.529.923.445.175.737.876.782.4
Percentage of Assets4.94.03.83.63.82.51.31.00.80.80.40.40.50.60.71.01.11.50.50.71.81.50.31.72.6
Percentage of Assets lmca:LibertyFormulaOneGroup18.514.915.014.115.39.65.13.73.03.31.51.31.72.32.43.43.65.05.60.00.00.03.90.00.0

lmca:LibertySiriusXmGroup


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1542103099613719243864931332369891126174658615234173330287611526102112153294482148135
Percentage of CashAndCashEquivalentsAtCarryingValue39.234.435.27.148.121.440.319.233.915.525.435.535.963.159.829.923.330.851.165.042.816.955.726.037.241.121.712.4
Percentage of Assets3.42.32.30.34.20.91.10.30.50.20.20.30.41.51.50.60.40.80.91.91.70.30.40.50.91.50.50.4
Percentage of Assets lmca:LibertySiriusXmGroup4.73.23.10.45.71.21.60.40.80.30.30.40.62.32.20.80.61.21.12.21.90.40.40.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value4006303928771974403118351306773751671452451563107910477947541081572211
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.86.86.54.58.74.23.01.81.71.51.11.11.32.52.51.91.82.61.80.7

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value823777823771673700767778849728364440428394358353363280240274276244247278332228235243240204206225259237286288
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.71.91.81.51.61.71.81.91.70.91.11.00.90.90.80.90.70.80.90.90.80.80.91.10.70.80.70.70.60.60.70.80.73.43.7

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value60343237656670948841646438537136044641448337629932635722725826325722838534829829834030529028420723030314845
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.00.91.31.51.10.91.10.90.80.91.11.01.10.90.70.80.90.70.80.90.80.81.31.10.91.01.00.90.90.80.60.70.91.80.6

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value22392262246925412352
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0
Percentage of Assets5.15.16.06.17.5

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:GB


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-31
Value18161212
Percentage of NoncurrentAssets0.80.70.50.5
Percentage of Assets0.00.00.00.0
Percentage of Assets country:GB0.00.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value22212246245725292352
Percentage of NoncurrentAssets99.299.399.599.5100.0
Percentage of Assets5.05.16.06.07.5
Percentage of Assets country:US0.00.00.00.00.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-31
Value2021992062141971981972042071821621701681541461671651163745473939444032353841361083055267.03.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value19247192241921819956199561993919939199521994819927183861838618383183831838318395183981831314345143451434514345143451434514345143451434514391143891438914365142031422114215332332332
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.243.243.745.643.245.445.145.745.645.445.044.244.043.243.844.044.544.745.745.446.447.348.146.846.145.646.042.542.242.741.641.842.043.94.04.30.0

us-gaap:Goodwill dei:LegalEntity, us-gaap:BusinessAcquisition

lmca:SiriusXmHoldings, lmca:Stitcher


Goodwilldei:
Period End2020-10-16
Value218
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets lmca:SiriusXmHoldings lmca:Stitcher0.0

us-gaap:Goodwill us-gaap:ReportingUnit

lmca:SiriusXmHoldings


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1511115088150821582015820158031581615812157911425014247
Percentage of Goodwill78.578.578.579.379.379.379.379.379.277.577.5
Percentage of Assets33.133.934.336.134.235.836.236.236.034.933.9
Percentage of Assets lmca:SiriusXmHoldings0.00.00.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value50855232537854895653579059406079622263675715583059526015613162426373646710721070106810801097111211251081109611451170120812009649871039120135108
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.111.812.212.512.213.213.413.914.214.514.014.014.214.114.614.915.415.83.43.43.53.63.73.63.63.43.53.43.43.63.52.82.93.21.41.70.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

lmca:FiaAgreement


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value279128392888293829873037308731363185323432843331337834263473351635583601
Percentage of FiniteLivedIntangibleAssetsNet54.954.353.753.552.852.552.051.651.250.857.557.156.857.056.656.355.855.7
Percentage of Assets6.16.46.66.76.56.97.07.27.37.48.08.08.18.18.38.48.68.8
Percentage of Assets lmca:FiaAgreement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312011-12-312010-12-31
Value151915921664173118081885196320462129221218891962203621092183225223242399602616630644659673687702716744759773566587283128
Percentage of FiniteLivedIntangibleAssetsNet29.930.430.931.532.032.633.033.734.234.733.133.734.235.135.636.136.537.156.257.659.059.660.160.561.164.965.365.064.964.458.756.523.323.025.9
Percentage of Assets3.33.63.84.03.94.34.44.74.95.04.64.74.95.05.25.45.65.91.92.02.02.12.22.22.22.22.32.22.22.21.71.80.30.40.0
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LicensingAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312010-12-31
Value1251301341151201251311371431481691741811841921992072032072142212282352422502572642732802942933040.00.0
Percentage of FiniteLivedIntangibleAssetsNet2.52.52.52.12.12.22.22.32.32.33.03.03.03.13.13.23.23.119.320.020.721.121.421.822.223.824.123.823.924.530.429.30.00.0
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.40.40.40.40.50.50.50.50.70.70.70.80.80.80.80.80.80.80.80.90.90.90.00.0
Percentage of Assets us-gaap:LicensingAgreements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-03-312012-12-312010-12-31
Value65067169270573874375976076577337336335729628327528426426324021720820319718812211612813112001051488080
Percentage of FiniteLivedIntangibleAssetsNet12.812.812.912.813.112.812.812.512.312.16.56.26.04.94.64.44.54.124.522.420.319.318.517.716.711.310.611.211.2100.010.914.266.774.1
Percentage of Assets1.41.51.61.61.61.71.71.71.81.80.90.90.90.70.70.70.70.60.80.80.70.70.70.60.60.40.40.40.43.50.30.51.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-31
Value465510
Percentage of OperatingLeaseRightOfUseAsset100.0100.0
Percentage of Assets1.11.2

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value310228682136172416941508201317451689124658378181171564070170969248043537843446535336735632628229629037919217991240238
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.86.54.93.93.73.44.64.03.92.81.41.91.91.71.51.71.71.71.51.41.21.41.61.21.21.11.00.80.90.91.10.60.50.32.93.1

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value156713471583140314011308162115371507134711161097122910641250
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.03.63.23.03.03.73.53.43.12.72.62.92.53.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value221122832070224226382585211322352356249920792235238724631941
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.85.14.75.15.75.94.85.15.45.75.15.45.75.84.6

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:StatementBusinessSegments

lmca:FormulaOneAndBravesHoldings


Contract
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value63862034980666218429738251215428645855259
Percentage of ContractWithCustomerLiabilityCurrent28.927.216.930.625.68.713.316.220.57.412.819.222.43.0
Percentage of Assets1.41.40.81.71.50.40.70.91.20.40.71.11.30.1
Percentage of Assets lmca:FormulaOneAndBravesHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Current

us-gaap:DebtCurrent

us-gaap:DebtCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value15537787439618745906014131317181836768475.0485.06092562562552562582582577547627707774964.04.04.0754
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.41.71.70.24.11.30.10.00.00.00.00.00.00.11.80.10.00.10.01.90.80.80.90.80.80.80.82.22.22.32.21.50.00.00.09.8

us-gaap:DebtCurrent dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

lmca:Anlbc, lmca:BravesHoldingsMixedUseFacilityCreditFacilitiesTotal, us-gaap:RevolvingCreditFacility


Debt
Period End2020-09-30
Value38
Percentage of DebtCurrent39.6
Percentage of Assets0.1
Percentage of Assets lmca:Anlbc lmca:BravesHoldingsMixedUseFacilityCreditFacilitiesTotal us-gaap:RevolvingCreditFacility0.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value54404536449038396015458438883882397339613244337936553587397933543311351228723286299529652813276129702684265032313321329131722760242424523851230
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.910.210.28.813.010.48.88.99.19.07.98.18.78.49.58.08.08.69.210.49.79.89.49.09.58.58.59.59.79.89.28.17.27.64.615.9

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-12-312019-12-31
Value5453
Percentage of OperatingLeaseLiabilityCurrent100.0100.0
Percentage of Assets0.10.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1091289498102101941109710232292124202822275.01548663.0331729401571731281504544253785
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.20.20.20.20.20.30.20.20.10.10.10.10.00.10.10.10.00.00.20.20.00.10.10.10.10.50.50.40.40.10.10.10.41.1

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value18973181081742915510168541514315476147211442414039133881339813270141131395413492135241335480188119753171186896680265576471585260745939466855554881436324195401295
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.640.739.635.436.534.535.033.733.032.032.832.231.733.233.232.232.732.625.625.724.423.523.122.221.120.618.817.917.413.916.114.412.97.56.516.8

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1742017330166861541414980145531541614707144111402613371133801325214077131861344513519133068013751072756862662665466299621355955320517738984778438543592415536541
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.239.037.935.232.433.134.933.733.031.932.732.131.733.131.432.132.732.525.523.823.622.622.221.320.219.817.915.715.211.613.812.912.97.56.47.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value41204228451051885478553556305661588564885103550955775498563156155636579659606288640467047198744878848332877885738961973698019560993710474-8.0-10.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.09.510.211.811.912.612.713.013.514.812.513.213.312.913.413.413.614.119.019.920.722.124.224.325.326.528.125.326.328.928.428.229.332.3-0.1-0.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value105510831101109111211115104710061011978864886884891779786777762751765716626561502354354348375204225234263276285131251
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.42.52.52.42.52.42.32.32.22.12.12.12.11.91.91.91.92.42.42.32.11.91.61.11.11.11.10.60.70.70.80.80.91.63.3

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2020-12-312019-12-31
Value453495
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0
Percentage of Assets1.01.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value80
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value75
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value66
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value66
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value272
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.6

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value507548499511492
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.11.21.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value637
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value130
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1488814670150911619216610161671629516517165961670716595168601688816977169431583915448149801175611705116471138110933109941107511308113981402113976141411408114419143761427764405259
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.633.034.337.035.936.836.937.838.038.040.640.540.439.940.337.837.336.537.537.137.737.536.735.835.636.036.541.441.042.040.842.542.444.177.468.1

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value190081889819601213802208821702219252217822481231952169822369224652247522574214542108420776177161799318051180851813118442189591964020176225942293723877238822397924313247516432524950003310
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.642.544.548.847.849.449.650.851.452.853.153.753.752.853.851.350.950.756.557.058.459.660.860.160.962.564.766.867.370.969.170.671.876.477.368.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC, us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value2.02.02.02.02.02.02.02.02.02.02.02.02.02.02.01.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets lmca:LibertyFormulaOneGroup us-gaap:CommonClassC us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

lmca:AccumulatedOtherComprehensiveIncomeOther


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value104-4.07.0-17.0-31.0-18.0-11.0-1.0-5.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.5-0.00.0-0.1-0.2-0.1-0.1-0.0-0.1
Percentage of Assets0.2-0.00.0-0.0-0.1-0.1-0.0-0.0-0.1
Percentage of Assets lmca:AccumulatedOtherComprehensiveIncomeOther0.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value-7.0-17.0-30.0-6.0-22.0-23.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.0-0.1-0.1-0.0-0.1-0.1
Percentage of Assets-0.0-0.0-0.1-0.0-0.1-0.1
Percentage of Assets us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.0

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value-19.0-12.0-15.0-12.0-9.0-10.0-10.05.020
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.1-0.1-0.1-0.1-0.1-0.00.00.3
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.2
Percentage of Assets us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value222524282688294331102371257527803016326129843246353337643892390036953331871472687820572215311531533148334835640.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest11.712.813.713.814.110.911.712.513.414.113.814.515.716.717.218.217.516.00.50.81.50.49.19.313.013.012.752.167.90.00.0
Percentage of Assets4.95.56.16.76.75.45.86.46.97.47.37.88.58.89.39.38.98.10.30.50.90.36.16.49.29.39.740.246.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-31
Value37337819156120-33.0-61.0-25.0-43.0-38.0-75.0-69.0-39.0-35.0-34.0-52.0-62.0-62.0-54.0-51.0-46.0-51.0-21.04.012
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.20.20.40.10.70.6-0.2-0.3-0.1-0.2-0.2-0.3-0.3-0.2-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.10.00.2
Percentage of Assets0.10.10.20.00.30.3-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.10.00.1
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value412042284510518854785535563056615885648851035509557754985631561556365796596062886404670471987448788483328778857398019560993710474-8.0-10.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest21.722.423.024.324.825.525.725.526.228.023.524.624.824.524.926.226.727.933.634.935.537.139.740.441.642.443.537.941.039.940.942.3-0.1-0.20.00.0
Percentage of Assets9.09.510.211.811.912.612.713.013.514.812.513.213.312.913.413.413.614.119.019.920.722.124.224.325.326.528.125.328.428.229.332.3-0.1-0.10.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value126211220412320132251333913671137481379313600134841364413684134191324713081119681180011706117271160811426113461098111037111121133311416119641185911307112371114130791665829-171.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest66.464.662.961.960.463.062.762.260.558.162.961.259.758.957.955.856.056.366.264.563.362.760.659.858.657.756.653.049.747.246.245.047.931.716.6-5.2
Percentage of Assets27.627.428.030.228.931.131.131.631.130.733.432.932.131.131.128.628.528.537.436.837.037.436.936.035.736.136.635.334.333.333.234.437.021.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.01000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets lmca:LibertyFormulaOneGroup us-gaap:CommonClassC0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value22252428268829433110237125752780301632612984324635333764389239003695333187205720362255221731153153314833483564
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.95.56.16.76.75.45.86.46.97.47.37.88.58.89.39.38.98.10.36.16.06.76.49.29.39.740.246.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1262112204123201322513339136711374813793136001348413644136841341913247130811196811800117061172711608114261134610981110371111211333114161196411931118811185911307112371114130791665
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.627.428.030.228.931.131.131.631.130.733.432.932.131.131.128.628.528.537.436.837.037.436.936.035.736.136.635.335.035.334.333.333.234.437.021.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-312009-12-31
Value37337819156120-33.0-61.0-25.0-43.0-38.0-75.0-69.0-39.0-35.0-34.0-52.0-62.0-62.0-54.0-51.0-46.0-51.0-46.0-40.0-28.0-21.0-3.06.04.04.0-4.0-15.0-13.012295435
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.00.30.3-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.00.00.00.0-0.0-0.0-0.00.10.40.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value41204228451051885478553556305661588564885103550955775498563156155636579659606288640467047198744878848332877885738961973698019560993710474-8.0-10.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.09.510.211.811.912.612.713.013.514.812.513.213.312.913.413.413.614.119.019.920.722.124.224.325.326.528.125.326.328.928.428.229.332.3-0.1-0.1

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-12-312020-09-302020-06-302017-12-312017-09-302017-06-302017-03-312016-12-312013-09-302013-06-302013-03-31
Value0.00.07540.00.00.016170.0-28.010.057
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.0100.00.00.00.0100.00.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-302020-06-302017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.00.07540.00.00.016160.0
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.0100.00.00.00.099.90.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value64668473497178797989555442
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value54526956345460606066454234
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue84.478.882.176.769.476.176.975.975.974.281.877.881.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10.014151715171819192310.0128.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue15.621.217.923.330.623.923.124.124.125.818.222.219.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1414191515141515151515
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1414191515141515151515
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value738497674187312557543598523649521367644624419574336403520389448814338193367315324237270294347282268339183-16.0-39.0108
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.722.024.96.816.327.720.720.918.632.325.915.929.341.121.027.815.728.939.428.132.867.628.015.030.029.129.620.023.329.133.925.424.943.039.2-2.9-7.324.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-38.0-716.0-427.0-106.0-145.0-58.0-96.0-102.025825412-82.0124-424.0-223.0-446.0-671.0-1797.0-254.0-924.039-125.0-337.0-66.0-27.0144-10.0-132.0-158.0-111.0-524.0-35.0-2562.0357332-706.0-4.0592
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-31.8-15.8-3.9-7.6-2.9-3.7-3.69.212.60.6-3.55.6-27.9-11.2-21.6-31.4-128.8-19.2-66.72.9-10.4-27.9-5.1-2.213.3-0.9-11.1-13.6-11.0-51.1-3.2-237.745.271.1-127.2-0.7134.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value267383652-2147.020313881-469.0-700.0-685.0-531.0-398.0-1281.0-170.053-91.04.01902-644.0246140-288.0-388.0-329.0-722.032-10.0-294.077-894.094-13.01331-599.0-185.0-1.0-152.0-829.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.317.024.1-78.6106.41.93.1-16.4-25.0-34.0-26.4-17.2-58.3-11.22.7-4.40.2136.3-48.817.810.2-23.9-32.1-25.6-59.13.0-0.9-24.86.6-88.49.2-1.2123.5-75.9-39.6-0.2-28.3-188.4

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value967162903-2057.0219652953322802191.0-112.0-516.03225340-327.0509
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.67.233.3-75.3115.026.320.40.82.910.90.0-4.8-23.52.112.71.9-15.336.5

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value42-143.0-52.0-9.0-73.039-76.081615435605220-1350.011050126202276611477171170827032-93.01885102-377.0-51.010636431
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value738497674187312557543598523649521367644624419574336403520389448814338193367315324237270294347282268339183-16.0-39.0108
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.722.024.96.816.327.720.720.918.632.325.915.929.341.121.027.815.728.939.428.132.867.628.015.030.029.129.620.023.329.133.925.424.943.039.2-2.9-7.324.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value417-116.0-905.0-114.0-326.0-76.0-45.0193116-158.0-40.0268172131111316894-21.01191158036544-22.061-19.07333502255276968062106221937150
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.5-5.1-33.4-4.2-17.1-3.8-1.76.84.1-7.9-2.011.67.88.655.88.14.4-1.59.08.35.930.33.6-1.75.0-1.86.72.84.32.253.96.88.91021.822.739.8174.534.1

us-gaap:NetIncomeLoss lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value25-59.0-62.0-31.0-38.053-44.01226-71.01841-2.0-52.04.022-2.0-49.0-40.0-22.032-25.0-11.010.0-4.0-15.0
Percentage of NetIncomeLoss6.050.96.927.211.7-69.797.86.222.444.9-45.015.3-1.2-39.70.413.1-2.1233.3-33.6-19.140.0-6.8-25.0-45.5-6.678.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.9-2.6-2.3-1.1-2.02.6-1.70.40.9-3.50.91.8-0.1-3.40.21.1-0.1-3.5-3.0-1.62.3-2.1-0.90.8-0.3-1.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyBravesGroup11.6-368.8-177.1-28.2-345.5240.9-129.45.712.5-322.756.220.5-1.1-185.720.011.9-1.1-980.0-222.2-20.224.4-625.0-68.88.4-3.9-300.0

lmca:LibertyFormulaOneGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value55-46.042-95.0-200.0-343.0-127.041-77.0-148.0-184.0429.0-17.0415-37.0-27.0-96.04041-45.0291
Percentage of NetIncomeLoss13.239.7-4.683.361.3451.3282.221.2-66.493.7460.015.75.2-13.037.3-22.0-28.7457.133.635.7-56.279.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.9-2.01.6-3.5-10.5-17.0-4.81.4-2.7-7.4-9.21.80.4-1.120.8-1.8-1.3-6.93.03.0-3.324.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertyFormulaOneGroup11.0-25.68.7-15.9-833.3-879.5-24.36.5-12.4-60.2-38.36.51.5-14.972.8-7.4-4.4-100.00.00.00.00.0

lmca:LibertySiriusXmGroup


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value337-11.0-885.012-88.021412614016761126185165200694183123124119968210170895347
Percentage of NetIncomeLoss80.89.597.8-10.527.0-281.6-280.072.5144.0-38.6-315.069.095.9152.762.4108.9130.9-590.5100.083.5102.527.7159.1-404.586.9-247.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.7-0.5-32.70.4-4.610.64.84.96.03.06.38.07.513.234.88.95.78.99.06.96.08.45.86.94.34.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lmca:LibertySiriusXmGroup15.6-0.5-40.40.6-4.711.06.17.08.43.58.412.611.514.549.413.39.19.69.17.56.68.45.97.64.74.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value528-14.0-1088.0-43.0-262.02.020262192-127.0313662552131429261156441861691404278941991913087106726191161588110103220938151
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.4-0.6-40.2-1.6-13.70.10.89.26.8-6.31.515.811.614.071.712.67.33.214.112.210.235.57.43.28.11.811.97.39.17.160.410.514.71027.922.139.6174.734.3

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-183.07164786569763171988382316936265675560624563383857
Percentage of ProfitLoss16.8-165.1-24.43900.0325.026.339.6-24.4229.026.832.538.522.135.639.7147.736.032.542.914.550.6153.738.4200.043.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.82.63.43.92.52.42.71.53.54.23.85.415.84.52.94.75.14.04.45.13.74.93.13.55.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-905.0-114.0-326.0-76.0-45.0193116-158.0-40.0268172131111316894-21.01191168036544-22.061-19.073
Percentage of ProfitLoss83.2265.1124.4-3800.0-225.073.760.4124.4-129.073.267.561.577.964.460.3-47.764.068.657.185.549.4-53.761.6-100.056.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-33.4-4.2-17.1-3.8-1.76.84.1-7.9-2.011.67.88.655.88.14.4-1.59.08.45.930.33.6-1.75.0-1.86.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value60638168456774767686474653464885534441413434575647446653494952524841487.05.06.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation dei:LegalEntity

lmca:SiriusXmHoldings


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4751585852555865574933303634
Percentage of ShareBasedCompensation78.381.071.685.3115.682.178.485.575.057.070.265.267.973.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-38.0-716.0-427.0-106.0-145.0-58.0-96.0-102.025825412-82.0124-424.0-223.0-446.0-671.0-1797.0-254.0-924.039-125.0-337.0-66.0-27.0144-10.0-132.0-158.0-111.0-524.0-35.0-2562.0357332-706.0-4.0592
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-31.8-15.8-3.9-7.6-2.9-3.7-3.69.212.60.6-3.55.6-27.9-11.2-21.6-31.4-128.8-19.2-66.72.9-10.4-27.9-5.1-2.213.3-0.9-11.1-13.6-11.0-51.1-3.2-237.745.271.1-127.2-0.7134.5

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value999113611011888172117108113138741028911014111015625015893671203775644142456675683826
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.010.01226192431223515181.08.06.0294543102175925637446.04335
Percentage of PaymentsToAcquireProductiveAssets9.111.08.823.616.127.318.018.832.413.313.01.47.86.726.431.939.165.470.058.260.255.236.716.257.354.7

lmca:LibertyFormulaOneGroup


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value4.03.04.03.0122.017163.08.03.08.02.01.00.08.01.0
Percentage of PaymentsToAcquireProductiveAssets4.03.32.92.710.22.39.913.72.87.12.210.82.01.10.05.70.4

lmca:LibertySiriusXmGroup


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value8678120818762124797090117659282818865547465373044303130
Percentage of PaymentsToAcquireProductiveAssets86.985.788.273.673.770.572.167.564.879.684.887.890.292.173.662.459.134.629.641.139.844.836.781.141.346.9

us-gaap:PaymentsToAcquireProductiveAssets lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems

lmca:LibertyBravesGroup, us-gaap:CorporateNonSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9.010.01226192431223515
Percentage of PaymentsToAcquireProductiveAssets9.111.08.823.616.127.318.018.832.413.3

lmca:LibertyFormulaOneGroup, us-gaap:CorporateNonSegment


Payments
Period End2020-12-312020-09-302019-12-31
Value0.00.014
Percentage of PaymentsToAcquireProductiveAssets0.00.08.1

lmca:LibertySiriusXmGroup, lmca:OperatingSegmentsAndCorporateNonSegment


Payments
Period End2021-06-302021-03-31
Value12297
Percentage of PaymentsToAcquireProductiveAssets123.2106.6

lmca:LibertySiriusXmGroup, srt:ConsolidationEliminations


Payments
Period End2021-06-302021-03-31
Value-36.0-19.0
Percentage of PaymentsToAcquireProductiveAssets-36.4-20.9

us-gaap:PaymentsToAcquireProductiveAssets lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:FormulaOne


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.03.04.03.02.02.03.02.03.08.0
Percentage of PaymentsToAcquireProductiveAssets4.03.32.92.71.72.31.71.72.87.1

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:LiveNation


Payments
Period End2021-06-302021-03-31
Value3619
Percentage of PaymentsToAcquireProductiveAssets36.420.9

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:SiriusXmHoldings


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8678120818762124797090
Percentage of PaymentsToAcquireProductiveAssets86.985.788.273.673.770.572.167.564.879.6

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value12758197.05.0824.05.09.011114.06.03931023184375.0227510.011140.01672.01.00.025661829312162052.0
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value267383652-2147.020313881-469.0-700.0-685.0-531.0-398.0-1281.0-170.053-91.04.01902-644.0246140-288.0-388.0-329.0-722.032-10.0-294.077-894.094-13.01331-599.0-185.0-1.0-152.0-829.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.317.024.1-78.6106.41.93.1-16.4-25.0-34.0-26.4-17.2-58.3-11.22.7-4.40.2136.3-48.817.810.2-23.9-32.1-25.6-59.13.0-0.9-24.86.6-88.49.2-1.2123.5-75.9-39.6-0.2-28.3-188.4

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302012-12-312012-09-30
Value270410901860203198285310022139196691313077272661317877322375318447265661118335434436681275540270171214025000.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value192059333617115123725261958164674110435961264115428830286371154873607051113781573.06582768775282110488868441.05040.00.0750
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends dei:LegalEntity

us-gaap:PaymentsOfDividends

lmca:SiriusXmHoldings


Payments
Period End2021-06-302021-03-312020-12-31
Value606162
Percentage of PaymentsOfDividends100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-12-312015-09-302015-06-302015-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value136107114660.01386968842229815018731473.0242580.00.00.00.00.0140818.015579
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber dei:LegalEntity

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

lmca:SiriusXmHoldings


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value180198196201203228252258
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber dei:LegalEntity, us-gaap:AwardType

lmca:SiriusXmHoldings, us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-31
Value184208
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

lmca:LibertyBravesGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0020.0020.0020.0020.1240.1560.1720.1770.1780.1780.1790.1790.1790.1790.180.1890.1890.197
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.00.00.00.00.10.10.10.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3.4823.4883.4751.421.3991.4011.2671.1441.2281.2681.2761.2731.2731.2761.2311.2151.2151.2241.0731.0691.083
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber1.91.80.00.70.70.70.00.50.50.50.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value0.0010.0010.0010.0010.2950.3310.360.360.3620.3810.3920.40.40.4020.440.455
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.00.00.00.00.10.10.10.00.00.00.00.00.00.00.00.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1111109.659.9579.9658.2848.4218.8918.9156.6846.6676.7426.7724.764.6894.7174.7822.611
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber6.25.60.04.95.04.90.03.73.53.50.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0050.0050.0050.0221.2061.311.3421.4031.4121.4381.5871.6261.6381.6831.8762.0182.1162.189
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber0.00.00.00.00.50.50.50.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1011101010109.8171111111111111111111110111111
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber6.15.60.05.25.05.00.05.04.74.60.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice dei:LegalEntity

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

lmca:SiriusXmHoldings


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.365.264.614.584.564.394.324.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice dei:LegalEntity, us-gaap:AwardType

lmca:SiriusXmHoldings, us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-31
Value4.734.46
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

lmca:LibertyBravesGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value11.8911.8911.8911.8911.4311.4311.4411.4411.4211.4211.4311.4311.4311.4311.4411.311.2911.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice257.9259.6260.70.0260.4264.6266.00.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value24.8624.8524.8121.6621.6921.6621.8217.1516.8616.716.5816.5316.5416.5216.2716.1816.1816.1114.9214.8814.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice463.8472.40.0469.8473.6475.00.0390.7390.3388.40.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value12.6312.6312.6312.6311.6811.6811.7111.7111.6911.6911.6911.6911.6911.6911.5611.55
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice274.0275.8277.00.0266.1270.4272.30.00.00.00.00.00.00.00.00.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value32.7832.7431.7830.7830.7630.7331.1628.6428.728.6726.9226.8926.7726.724.5924.3924.3424.1615.18
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice611.6622.40.0667.7671.6673.90.0652.4664.4666.70.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value31.031.031.022.6219.8219.8319.8519.8419.819.7919.7919.7819.7619.7419.7119.3919.3619.35
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice672.5676.9679.80.0451.5459.0461.60.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value35.2835.2434.9634.234.1934.1633.929.529.4229.3928.8528.7928.7728.5227.6627.4827.3926.3825.9125.6425.57
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice658.2670.00.0741.9746.5749.10.0672.0681.0683.50.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod dei:LegalEntity, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

lmca:SiriusXmHoldings, us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-06-302019-09-302019-06-302019-03-31
Value3.010.07.0251.011
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:StatementClassOfStock

lmca:LibertyBravesGroup, srt:ChiefExecutiveOfficer, lmca:PerformanceBasedRestrictedStockUnit, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312019-12-312019-09-30
Value0.00.0310.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.00.30.00.0

lmca:LibertyFormulaOneGroup, srt:ChiefExecutiveOfficer, lmca:PerformanceBasedRestrictedStockUnit, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312019-12-312019-09-30
Value0.00.0650.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.00.70.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value16001670165114782025166715071396903544
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value16781790181417182350269830173277114196
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4324053873653042542.0302934158
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value2932161741125049-5.0-9.0-6.0-30.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:AcquisitionAndRestructuringCosts

lmca:AcquisitionAndRestructuringCosts


Acquisition
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value4.00.0241.00.07.0
Percentage of AcquisitionAndRestructuringCosts100.00.0100.0100.00.0100.0

lmca:AdjustedOibda

lmca:AdjustedOibda


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-03-31
Value813714729667549564648854815614650811727489633695698467442485455391364473418373359392372294319379271-17.0
Percentage of AdjustedOibda100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:AdjustedOibda lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value53-22.0-4.05.0-28.0-26.0-24.04561-33.0-12.07263-35.0-44.04827-29.0-12.01612-36.0-11.0305.0-21.0
Percentage of AdjustedOibda6.5-3.1-0.50.7-5.1-4.6-3.75.37.5-5.4-1.88.98.7-7.2-7.06.93.9-6.2-2.73.32.6-9.2-3.06.31.2-5.6

lmca:LibertyFormulaOneGroup


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-31
Value6359788.0-26.0-42.0971541365992156128-1.0138104155-13.0-13.0-7.0-12.0
Percentage of AdjustedOibda7.78.310.71.2-4.7-7.415.018.016.79.614.219.217.6-0.221.815.022.2-2.9-2.7-1.5-3.1

lmca:LibertySiriusXmGroup


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value697677655654603632575655618588570583536525539543516496467482450439385451420404
Percentage of AdjustedOibda85.794.889.898.1109.8112.188.776.775.895.887.771.973.7107.485.278.173.9106.2105.799.498.9112.3105.895.3100.5108.3

lmca:AdjustedOibda lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems

lmca:LibertyBravesGroup, us-gaap:CorporateNonSegment


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value53-22.0-4.05.0-28.0-26.0-24.04561-33.0-12.07263-35.0
Percentage of AdjustedOibda6.5-3.1-0.50.7-5.1-4.6-3.75.37.5-5.4-1.88.98.7-7.2

lmca:LibertyFormulaOneGroup, lmca:OperatingSegmentsAndCorporateNonSegment


Adjusted
Period End2021-06-302021-03-312020-06-302020-03-31
Value6359-130.0-63.0
Percentage of AdjustedOibda7.78.3-23.7-11.2

lmca:LibertyFormulaOneGroup, us-gaap:CorporateNonSegment


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3.0-7.0-12.0-6.0-10.0-10.0-13.0-8.0-9.0-6.0-13.0-2.0-6.0-4.0
Percentage of AdjustedOibda-0.4-1.0-1.6-0.9-1.8-1.8-2.0-0.9-1.1-1.0-2.0-0.2-0.8-0.8

lmca:LibertySiriusXmGroup, lmca:OperatingSegmentsAndCorporateNonSegment


Adjusted
Period End2021-06-302021-03-312020-06-302020-03-31
Value707525276632
Percentage of AdjustedOibda87.073.550.3112.1

lmca:LibertySiriusXmGroup, srt:ConsolidationEliminations


Adjusted
Period End2021-06-302021-03-312020-06-30
Value-10.0152327
Percentage of AdjustedOibda-1.221.359.6

lmca:LibertySiriusXmGroup, us-gaap:CorporateNonSegment


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-2.0-5.0-5.0-7.0-12.0-7.0-7.0-4.0-4.0-2.0-1.0-4.0-6.0-5.0
Percentage of AdjustedOibda-0.2-0.7-0.7-1.0-2.2-1.2-1.1-0.5-0.5-0.3-0.2-0.5-0.8-1.0

lmca:AdjustedOibda lmca:EconomicPerformanceGroup, us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

lmca:LibertyFormulaOneGroup, us-gaap:OperatingSegments, lmca:FormulaOne


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value66669014-16.0-32.0110162145651051581343.0
Percentage of AdjustedOibda8.19.212.32.1-2.9-5.717.019.017.810.616.219.518.40.6

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:LiveNation


Adjusted
Period End2021-06-302021-03-312020-06-30
Value10.0-152.0-327.0
Percentage of AdjustedOibda1.2-21.3-59.6

lmca:LibertySiriusXmGroup, us-gaap:OperatingSegments, lmca:SiriusXmHoldings


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value699682660661615639582659622590574587542530
Percentage of AdjustedOibda86.095.590.599.1112.0113.389.877.276.396.188.372.474.6108.4

lmca:AssetAcquisitionWorkingCapitalAdjustments dei:LegalEntity, us-gaap:BusinessAcquisition

lmca:AssetAcquisitionWorkingCapitalAdjustments

lmca:SiriusXmHoldings, lmca:Stitcher


Asset
Period End2020-10-16
Value6000000.0
Percentage of AssetAcquisitionWorkingCapitalAdjustments100.0

lmca:ClassOfWarrantOrRightPriceOfWarrantsOrRights dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

lmca:ClassOfWarrantOrRightPriceOfWarrantsOrRights

lmca:LibertyMediaAcquisitionSponsorLlc, lmca:LmacWorkingCapitalLoan


Class
Period End2021-04-15
Value1.5
Percentage of ClassOfWarrantOrRightPriceOfWarrantsOrRights100.0

lmca:ClassOfWarrantOrRightPriceOfWarrantsOrRights dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:SubsequentEventType

lmca:LibertyMediaAcquisitionSponsorLlc, lmca:LmacWorkingCapitalLoan, us-gaap:SubsequentEvent


Class
Period End2021-04-15
Value1.5
Percentage of ClassOfWarrantOrRightPriceOfWarrantsOrRights100.0

lmca:ClassOfWarrantOrRightWarrantsIssued us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

lmca:ClassOfWarrantOrRightWarrantsIssued

lmca:LibertyMediaAcquisitionCorporation, us-gaap:Warrant, lmca:LibertyMediaAcquisitionSponsorLlc, us-gaap:SubsequentEvent, us-gaap:PrivatePlacement


Class
Period End2021-01-26
Value10000000.0
Percentage of ClassOfWarrantOrRightWarrantsIssued100.0

lmca:ComprehensiveIncomeLossAttributableToNonredeemableNoncontrollingInterest

lmca:ComprehensiveIncomeLossAttributableToNonredeemableNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-06-302020-03-31
Value113506868
Percentage of ComprehensiveIncomeLossAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0

lmca:ComprehensiveIncomeLossAttributableToRedeemableNoncontrollingInterest

lmca:ComprehensiveIncomeLossAttributableToRedeemableNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-31
Value0.053
Percentage of ComprehensiveIncomeLossAttributableToRedeemableNoncontrollingInterest0.0100.0

lmca:DebtInstrumentCommitmentFeePercentage lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

lmca:DebtInstrumentCommitmentFeePercentage

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldingsMarginLoan


Debt
Period End2021-02-24
Value0.5
Percentage of DebtInstrumentCommitmentFeePercentage100.0

lmca:DebtInstrumentCommitmentFeePercentage us-gaap:DebtInstrument

lmca:LiveNationMarginLoan


Debt
Period End2020-11-09
Value0.5
Percentage of DebtInstrumentCommitmentFeePercentage0.0

lmca:FounderSharesPurchased us-gaap:ConsolidatedEntities

lmca:FounderSharesPurchased

lmca:LibertyMediaAcquisitionCorporation


Founder
Period End2020-11-30
Value14
Percentage of FounderSharesPurchased100.0

lmca:InsuranceCoverageAmount dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType

lmca:InsuranceCoverageAmount

lmca:SiriusXmHoldings, lmca:Sxm7Satellite


Insurance
Period End2021-06-302021-03-31
Value0.0225
Percentage of InsuranceCoverageAmount0.0100.0

lmca:OperatingCostsAndExpensesNet

lmca:OperatingCostsAndExpensesNet


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value20884951548510010922320385
Percentage of OperatingCostsAndExpensesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:OtherComprehensiveIncomeLossCreditRiskOnFairValueDebtInstrumentsGainLossNetOfTax

lmca:OtherComprehensiveIncomeLossCreditRiskOnFairValueDebtInstrumentsGainLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-5.0-48.031-151.02121613-23.010.0-13.056-10.0-12.0-2.0
Percentage of OtherComprehensiveIncomeLossCreditRiskOnFairValueDebtInstrumentsGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:OtherComprehensiveIncomeLossOnGainsLossesOnEarlyExtinguishmentOfDebt

lmca:OtherComprehensiveIncomeLossOnGainsLossesOnEarlyExtinguishmentOfDebt


Other
Period End2021-06-30
Value-1000000.0
Percentage of OtherComprehensiveIncomeLossOnGainsLossesOnEarlyExtinguishmentOfDebt100.0

lmca:PaymentTaxWithholdingShareBasedPaymentArrangementNet

lmca:PaymentTaxWithholdingShareBasedPaymentArrangementNet


Payment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value232234408.0381104417408.041
Percentage of PaymentTaxWithholdingShareBasedPaymentArrangementNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:PaymentsForInvestmentsInTrustAccounts

lmca:PaymentsForInvestmentsInTrustAccounts


Payments
Period End2021-06-302021-03-31
Value0.0575
Percentage of PaymentsForInvestmentsInTrustAccounts0.0100.0

lmca:PaymentsToReceivedAcquireBusinessesNetOfCashAcquired

lmca:PaymentsToReceivedAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302019-12-312019-09-30
Value3280.0-626.00.0
Percentage of PaymentsToReceivedAcquireBusinessesNetOfCashAcquired100.00.0100.00.0

lmca:PaymentsToSettleObligationUnderCallSpread lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

lmca:PaymentsToSettleObligationUnderCallSpread

lmca:LibertySiriusXmGroup, lmca:LiveNation


Payments
Period End2021-04-30
Value384
Percentage of PaymentsToSettleObligationUnderCallSpread100.0

lmca:PaymentsToSettleObligationUnderCallSpread lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:SubsequentEventType

lmca:LibertySiriusXmGroup, lmca:LiveNation, us-gaap:SubsequentEvent


Payments
Period End2021-04-30
Value384
Percentage of PaymentsToSettleObligationUnderCallSpread100.0

lmca:PercentageOfBaseSalaryAgreedToBeWaived us-gaap:TitleOfIndividual, us-gaap:AwardType

lmca:PercentageOfBaseSalaryAgreedToBeWaived

srt:ChiefExecutiveOfficer, lmca:TimeBasedRestrictedStockUnits


Percentage
Period End2020-12-31
Value0
Percentage of PercentageOfBaseSalaryAgreedToBeWaived0.0

lmca:PercentageOfBaseSalaryOfThreeQuartersInLieuOfWhichTimeBasedRSUWasGranted us-gaap:TitleOfIndividual, us-gaap:AwardType

lmca:PercentageOfBaseSalaryOfThreeQuartersInLieuOfWhichTimeBasedRSUWasGranted

srt:ChiefExecutiveOfficer, lmca:TimeBasedRestrictedStockUnits


Percentage
Period End2020-12-31
Value0
Percentage of PercentageOfBaseSalaryOfThreeQuartersInLieuOfWhichTimeBasedRSUWasGranted0.0

lmca:ProceedsToSettleObligationUnderCallSpread dei:LegalEntity, lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

lmca:ProceedsToSettleObligationUnderCallSpread

lmca:FormulaOne, lmca:LibertySiriusXmGroup, lmca:LiveNation


Proceeds
Period End2021-04-30
Value384
Percentage of ProceedsToSettleObligationUnderCallSpread100.0

lmca:ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest

lmca:ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-06-302020-03-31
Value528-67.0-262.02.0
Percentage of ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0100.0

lmca:ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-06-302020-03-31
Value111496478
Percentage of ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest21.0-73.1-24.43900.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-06-302020-03-31
Value417-116.0-326.0-76.0
Percentage of ProfitLossExcludingNetEarningsLossAttributableToRedeemableNoncontrollingInterest79.0173.1124.4-3800.0

lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus

lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions

lmca:SiriusXmHoldings, lmca:CopyrightRoyaltyBoardProceedsToDetermineRateForStatutoryWebcasting, us-gaap:PendingLitigation


Proposed
Period End2020-11-30
Value0.0028
Percentage of ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions100.0

lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus

lmca:ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions

lmca:SiriusXmHoldings, lmca:CopyrightRoyaltyBoardProceedsToDetermineRateForStatutoryWebcasting, us-gaap:PendingLitigation


Proposed
Period End2020-11-30
Value0.0031
Percentage of ProposedIncreasedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions100.0

lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus

lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions

lmca:SiriusXmHoldings, lmca:CopyrightRoyaltyBoardProceedsToDetermineRateForStatutoryWebcasting, us-gaap:PendingLitigation


Proposed
Period End2020-11-30
Value0.0011
Percentage of ProposedStatutoryRateForCommercialWebcastersPerPerformanceForNonSubscriptionTransmissions100.0

lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions dei:LegalEntity, us-gaap:LitigationCase, us-gaap:LitigationStatus

lmca:ProposedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions

lmca:SiriusXmHoldings, lmca:CopyrightRoyaltyBoardProceedsToDetermineRateForStatutoryWebcasting, us-gaap:PendingLitigation


Proposed
Period End2020-11-30
Value0.0016
Percentage of ProposedStatutoryRateForCommercialWebcastersPerPerformanceForSubscriptionTransmissions100.0

lmca:ReductionInFutureBorrowingCapacity lmca:EconomicPerformanceGroup, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

lmca:ReductionInFutureBorrowingCapacity

lmca:LibertySiriusXmGroup, lmca:Pandora, lmca:SiriusXmCreditFacility, us-gaap:LetterOfCredit


Reduction
Period End2021-06-302021-03-312020-12-31
Value01000000.00
Percentage of ReductionInFutureBorrowingCapacity0.0100.00.0

lmca:ReturnOfInvestmentInEquityMethodAffiliates

lmca:ReturnOfInvestmentInEquityMethodAffiliates


Return
Period End2020-09-302020-06-302020-03-31
Value0.00.0105
Percentage of ReturnOfInvestmentInEquityMethodAffiliates0.00.0100.0

lmca:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue us-gaap:RelatedPartyTransactionsByRelatedParty

lmca:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue

srt:ChiefExecutiveOfficer


Share
Period End2020-12-312019-12-31
Value1919
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue100.0100.0

lmca:ShareOfOtherComprehensiveEarningsLossOfEquityAffiliates

lmca:ShareOfOtherComprehensiveEarningsLossOfEquityAffiliates


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value2.01.0116.04.0-30.09.0-8.0-3.0-3.0-18.0-9.02.03.07.02.0-7.0-2.0-5.0-4.0-1.05.0-7.0-6.0-8.02.03.02.08.0
Percentage of ShareOfOtherComprehensiveEarningsLossOfEquityAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:SharesAttributableToDebentures lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

lmca:SharesAttributableToDebentures

lmca:LibertySiriusXmGroup, lmca:LiveNation, lmca:Exchangeable0.5SeniorDebenturesDue2050


Shares
Period End2020-11-30
Value10.0
Percentage of SharesAttributableToDebentures100.0

lmca:SharesAttributableToDebentures us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

lmca:LiveNation, lmca:Exchangeable0.5SeniorDebenturesDue2050


Shares
Period End2020-11-30
Value10.0
Percentage of SharesAttributableToDebentures100.0

lmca:SharesAttributableToDebenturesSold lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

lmca:SharesAttributableToDebenturesSold

lmca:LibertyFormulaOneGroup, lmca:Atandt, lmca:Exchangeable2.25SeniorDebenturesDue2046


Shares
Period End2021-06-30
Value5330000.0
Percentage of SharesAttributableToDebenturesSold100.0

lmca:SubscriberAcquisitionCosts

lmca:SubscriberAcquisitionCosts


Subscriber
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-03-31
Value89861051104899114101104108118110119123127119126127131121129132141133137122126120124123124131970.0
Percentage of SubscriberAcquisitionCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

lmca:SubsidiarySharesRepurchasedBySubsidiary

lmca:SubsidiarySharesRepurchasedBySubsidiary


Subsidiary
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-03-312012-03-31
Value334522685471156243200485898576652328253094132124783062899-229.0-402.0-594.0-370.0-564.0-549.0-535.0-507.0-704.0-865.0-81.00.0-466.00.0
Percentage of SubsidiarySharesRepurchasedBySubsidiary100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0

lmca:TemporaryEquityChangeInRedemptionValue

lmca:TemporaryEquityChangeInRedemptionValue


Temporary
Period End2021-06-302021-03-31
Value-7.065
Percentage of TemporaryEquityChangeInRedemptionValue100.0100.0

lmca:TemporaryEquityInitialRecognitionOfRedeemableNoncontrollingInterests

lmca:TemporaryEquityInitialRecognitionOfRedeemableNoncontrollingInterests


Temporary
Period End2021-06-302021-03-31
Value0.0522
Percentage of TemporaryEquityInitialRecognitionOfRedeemableNoncontrollingInterests0.0100.0

lmca:UnitsIssuedDuringPeriod us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

lmca:UnitsIssuedDuringPeriod

lmca:LibertyMediaAcquisitionCorporation, us-gaap:SubsequentEvent, us-gaap:IPO


Units
Period End2021-01-26
Value57
Percentage of UnitsIssuedDuringPeriod100.0

lmca:LibertyMediaAcquisitionCorporation, us-gaap:SubsequentEvent, us-gaap:OverAllotmentOption


Units
Period End2021-01-26
Value7.5
Percentage of UnitsIssuedDuringPeriod13.0

lmca:UnitsIssuedDuringPeriod us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock

lmca:LibertyMediaAcquisitionCorporation, us-gaap:IPO


Units
Period End2021-01-26
Value57
Percentage of UnitsIssuedDuringPeriod100.0

lmca:LibertyMediaAcquisitionCorporation, us-gaap:OverAllotmentOption


Units
Period End2021-01-26
Value7.5
Percentage of UnitsIssuedDuringPeriod13.0

lmca:UnrealizedGainLossOnIntergroupInterest lmca:EconomicPerformanceGroup

lmca:UnrealizedGainLossOnIntergroupInterest

lmca:LibertyBravesGroup


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value-1.0283610.07.0-95.016-2.02.02622-13.0-28.0-5.028-12.0-3.0-28.0-25.027
Percentage of UnrealizedGainLossOnIntergroupInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Unrealized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value241.0242328
Percentage of UnrealizedGainLossOnIntergroupInterest-2400.03.666.7230.0400.0

lmca:LibertySiriusXmGroup


Unrealized
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.0-4.0-31.0
Percentage of UnrealizedGainLossOnIntergroupInterest0.00.0-57.132.6

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value232234408.038408.0415328406310.0221533
Percentage of AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value232234408.038408.0415328406310.0221533
Percentage of AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges dei:LegalEntity

us-gaap:AssetImpairmentCharges

lmca:SiriusXmHoldings


Asset
Period End2021-06-302021-03-31
Value0.018
Percentage of AssetImpairmentCharges0.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

lmca:SiriusXmHoldings, lmca:Stitcher


Business
Period End2020-10-16
Value296
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessExitCosts1

us-gaap:BusinessExitCosts1


Business
Period End2020-12-31
Value6000000.0
Percentage of BusinessExitCosts1100.0

us-gaap:CashDividendsPaidToParentCompany dei:LegalEntity

us-gaap:CashDividendsPaidToParentCompany

lmca:SiriusXmHoldings


Cash
Period End2021-06-302021-03-312020-12-31
Value464747
Percentage of CashDividendsPaidToParentCompany100.0100.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests


Consolidation
Period End2021-06-302019-12-312019-09-30
Value6.00.08.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests100.00.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-03-312014-12-31
Value-13.0-45.0-17.0-30.0-8.0-20.0-23.0-35.0-13.0-21.0-3.0-28.0-21.0-13.0-8.0-7.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests-216.70.00.00.00.00.00.0-437.50.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-03-312014-12-31
Value194517308.020234313213.02821138.07.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests316.70.00.00.00.00.00.0537.50.00.00.00.00.00.00.00.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value328516680486165243193464898604646334222954162114772994602221580-588.0-3663.0553560534-3781.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value92138162923260631272081641971327.0801196411967662452-12.0-261.0275826-387.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary28.026.723.818.919.424.732.627.423.227.230.539.531.827.128.630.324.922.414.310.83.32.07.14.910.44.910.2

us-gaap:NoncontrollingInterest


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value236378518394133183130337690440449202152152971473582323941981528-576.0-3402.0526502508-3394.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesRepurchaseOfSharesBySubsidiary72.073.376.281.180.675.367.472.676.872.869.560.568.272.971.469.775.177.685.789.296.798.092.995.189.695.189.8

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 dei:LegalEntity, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

lmca:FormulaOne, us-gaap:RevolvingCreditFacility, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-09-302019-05-23
Value2.52.50.02
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:VariableRate

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldingsMarginLoan, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-02-242020-03-312019-03-312018-03-312016-10-31
Value2.02.050.02050.02050.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.00.00.00.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:DebtInstrument, us-gaap:VariableRate

lmca:LiveNationMarginLoan, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2020-11-092018-12-10
Value2.01.8
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.0

us-gaap:DebtInstrumentRedemptionPricePercentage lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

us-gaap:DebtInstrumentRedemptionPricePercentage

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldings4.625SeniorNotesDue2023


Debt
Period End2020-07-09
Value1.008
Percentage of DebtInstrumentRedemptionPricePercentage100.0

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldings5.375SeniorNotesDue2025


Debt
Period End2020-07-09
Value1.027
Percentage of DebtInstrumentRedemptionPricePercentage101.9

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

lmca:LiveNation, lmca:Exchangeable0.5SeniorDebenturesDue2050


Debt
Period End2020-11-30
Value100.0
Percentage of DebtInstrumentRedemptionPricePercentage0.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value268264271279266267271271271248224234231216209228223164829293879096928487909290787988702612119.0
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0-2000000.04000000.09000000.0-2000000.0-8000000.01000000.0-3000000.02000000.0-3000000.02000000.04000000.01000000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:GoodwillAcquiredDuringPeriod


Goodwill
Period End2021-03-312019-03-312017-03-312014-03-312013-03-31
Value6.0154139682414015
Percentage of GoodwillAcquiredDuringPeriod100.0100.0100.0100.0100.0

us-gaap:GoodwillAcquiredDuringPeriod us-gaap:ReportingUnit

lmca:SiriusXmHoldings


Goodwill
Period End2021-03-312019-03-31
Value6.01541
Percentage of GoodwillAcquiredDuringPeriod100.0100.0

us-gaap:ImpairmentOfLeasehold dei:LegalEntity

us-gaap:ImpairmentOfLeasehold

lmca:SiriusXmHoldings


Impairment
Period End2021-06-302021-03-31
Value01000000.0
Percentage of ImpairmentOfLeasehold0.0100.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

lmca:SiriusXmHoldings, lmca:Sxm7Satellite


Impairment
Period End2021-06-302021-03-31
Value0.0220
Percentage of ImpairmentOfLongLivedAssetsHeldForUse0.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-48.0-95.0-144.0-187.0-193.0-62.0-63.05534-20.0-54.05822-8.0-63.015516-4.0-29.03718-12.0-32.0290.0-37.0-60.0-6.0-12.0-35.0-20.0-8.0-21.0173914122912
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value8.03.08.0-5.0-1.04.05.04.07.02.04.02.03.03.06.0681.03.03.02.02.02.03.02.02.02.0
Percentage of IncomeLossFromEquityMethodInvestments-16.7-3.2-5.62.70.5-6.5-7.97.320.6-10.0-7.43.413.6-37.5-9.543.96.2-75.0-10.35.411.1-16.7-9.46.90.0-5.4

lmca:LibertyFormulaOneGroup


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value14151.01.0-46.0-64.0-62.05834-18.0-49.05820-12.0-66.05320-10.0-34.03314-21.0
Percentage of IncomeLossFromEquityMethodInvestments-29.2-15.8-0.7-0.523.8103.298.4105.5100.090.090.7100.090.9150.0104.834.2125.0250.0117.289.277.8175.0

lmca:LibertySiriusXmGroup


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-70.0-113.0-153.0-183.0-146.0-2.0-6.0-7.0-7.0-4.0-9.0-2.0-1.01.0-3.034-5.03.02.02.02.07.02.01.03.0-7.0
Percentage of IncomeLossFromEquityMethodInvestments145.8118.9106.297.975.63.29.5-12.7-20.620.016.7-3.4-4.5-12.54.821.9-31.2-75.0-6.95.411.1-58.3-6.23.40.018.9

us-gaap:IncomeLossFromEquityMethodInvestments lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

lmca:LibertyBravesGroup, lmca:OtherEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value8.03.08.0-5.0-1.04.05.04.07.02.04.02.03.03.06.0681.03.03.02.0
Percentage of IncomeLossFromEquityMethodInvestments-16.7-3.2-5.62.70.5-6.5-7.97.320.6-10.0-7.43.413.6-37.5-9.543.96.2-75.0-10.35.4

lmca:LibertyFormulaOneGroup, lmca:LiveNation


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value0.00.0-46.0-66.0-57.05430-23.0-54.05419-16.0-69.04323-15.0-37.0339.0-17.0
Percentage of IncomeLossFromEquityMethodInvestments-0.0-0.023.8106.590.598.288.2115.0100.093.186.4200.0109.527.7143.8375.0127.689.250.0141.7

lmca:LibertyFormulaOneGroup, lmca:OtherEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value14151.01.00.02.0-5.04.04.05.05.04.01.04.03.010.0-3.05.03.0
Percentage of IncomeLossFromEquityMethodInvestments-29.2-15.8-0.7-0.5-0.0-3.27.97.311.8-25.0-9.36.94.5-50.0-4.86.5-18.8-125.0-10.3

lmca:LibertySiriusXmGroup, lmca:LiveNation


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value-67.0-111.0-144.0-177.0-144.0
Percentage of IncomeLossFromEquityMethodInvestments139.6116.8100.094.774.6

lmca:LibertySiriusXmGroup, lmca:OtherEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-6.0-6.0-6.0-6.0-6.0-6.0-1.0-7.0-6.0-7.0-7.0-3.0
Percentage of IncomeLossFromEquityMethodInvestments12.56.34.23.23.19.71.6-12.7-17.635.013.0-5.2

lmca:LibertySiriusXmGroup, lmca:SiriusXmCanada


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.04.0-3.00.04.04.0-5.00.0-1.03.0-2.01.0-1.01.0-3.034-5.03.02.02.02.07.02.01.03.0-7.0
Percentage of IncomeLossFromEquityMethodInvestments-6.2-4.22.1-0.0-2.1-6.57.90.0-2.9-15.03.71.7-4.5-12.54.821.9-31.2-75.0-6.95.411.1-58.3-6.23.40.018.9

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value111-53.0-14.0-422.0145145-10.0-110.0-64.0284-75.0-289.0142354-84.0-28.0-132.0-3.0148-132.038223103-225.0305625.0-73.0277458-97.0-74.03593-117.0-45.0116
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingAssets

us-gaap:IncreaseDecreaseInOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1688.0-114.0-92.020634-58.0-22.06419-88.0202.097-45.0-42.045-8.0-54.0-22.0282367-15.0134222.0172827-45.0-65.0-11.0-66.0-124.085227.0
Percentage of IncreaseDecreaseInOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements lmca:EconomicPerformanceGroup

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

lmca:LibertyBravesGroup


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value9000000.09000000.09000000.09000000.010000000.010000000.010000000.010000000.010000000.09000000.09000000.010000000.010000000.010000000.010000000.09000000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value8000000.07000000.06000000.05000000.01000000.02000000.02000000.02000000.01000000.01000000.02000000.02000000.07000000.06000000.01000000.01000000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements88.977.866.755.610.020.020.020.010.011.122.220.070.060.010.011.1

lmca:LibertySiriusXmGroup


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value2000000.01000000.01000000.01000000.04000000.04000000.04000000.04000000.05000000.04000000.04000000.04000000.04000000.04000000.02000000.02000000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements22.211.111.111.140.040.040.040.050.044.444.440.040.040.020.022.2

us-gaap:InsuranceRecoveries dei:LegalEntity, us-gaap:PropertyPlantAndEquipmentByType

us-gaap:InsuranceRecoveries

lmca:SiriusXmHoldings, lmca:Sxm7Satellite


Insurance
Period End2021-06-30
Value140
Percentage of InsuranceRecoveries100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-31
Value0.053
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest0.0100.0

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax us-gaap:FinancialInstrument

us-gaap:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax

lmca:DebtMeasuredAtFairValue


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-8.0-60.039-193.02727517-29.012-16.0
Percentage of OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0-1000000.00-1000000.00-6000000.0-1000000.01000000.01000000.02000000.000-1000000.0-2000000.000-1000000.0-2000000.001000000.0-4000000.0-1000000.00-3000000.06000000.02000000.0-2000000.04000000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax0.0100.00.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-4.01.050-51.0-24.0-10.053-58.00.0-3.0303.01.0-17.042-48.06.0-4.05.0-12.0-20.0-3.00.0-5.0-8.0-6.015-6.042-39.0-65.00.0-5.0-83.08.0-4.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value5.0-8.0203.0-16.0-3.0-2.07.08.05.02.0-49.0121.0130-11.03117-15.03.0-32.0188.0141739-35.0-1.0-58.07.0590.0-66.074
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value141415161617161617191515141515151515
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

lmca:SiriusXmHoldings, lmca:Stitcher


Payments
Period End2020-10-16
Value272
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

lmca:SiriusXmHoldings, lmca:EWScrippsCompany


Payments
Period End2020-07-13
Value265
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0

lmca:SiriusXmHoldings, lmca:Stitcher


Payments
Period End2020-10-16
Value272
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering

us-gaap:ProceedsFromIssuanceInitialPublicOffering


Proceeds
Period End2021-06-302021-03-31
Value0.0575
Percentage of ProceedsFromIssuanceInitialPublicOffering0.0100.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

lmca:LibertyMediaAcquisitionCorporation, us-gaap:SubsequentEvent, us-gaap:IPO


Proceeds
Period End2021-01-26
Value575
Percentage of ProceedsFromIssuanceInitialPublicOffering0.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering us-gaap:ConsolidatedEntities, us-gaap:SubsidiarySaleOfStock

lmca:LibertyMediaAcquisitionCorporation, us-gaap:IPO


Proceeds
Period End2021-01-26
Value575
Percentage of ProceedsFromIssuanceInitialPublicOffering0.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-312020-09-302020-06-052017-06-302017-03-312016-12-312016-09-30
Value0.00.075438815500.00.0
Percentage of ProceedsFromIssuanceOfCommonStock0.00.0100.0100.0100.00.00.0

us-gaap:ProceedsFromIssuanceOfDebt lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

us-gaap:ProceedsFromIssuanceOfDebt

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldingsMarginLoan


Proceeds
Period End2021-02-24
Value125
Percentage of ProceedsFromIssuanceOfDebt100.0

us-gaap:ProceedsFromIssuanceOfDebt lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

lmca:LibertySiriusXmGroup, lmca:SiriusXm3.125PercentageSeniorNotesDue2026, us-gaap:SubsequentEvent


Proceeds
Period End2021-08-01
Value1000
Percentage of ProceedsFromIssuanceOfDebt0.0

lmca:LibertySiriusXmGroup, lmca:SiriusXm3.875PercentageSeniorNotesDue2031, us-gaap:SubsequentEvent


Proceeds
Period End2021-08-01
Value1500
Percentage of ProceedsFromIssuanceOfDebt0.0

us-gaap:ProceedsFromIssuanceOfWarrants us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceOfWarrants

lmca:LibertyMediaAcquisitionCorporation, us-gaap:Warrant, lmca:LibertyMediaAcquisitionSponsorLlc, us-gaap:SubsequentEvent, us-gaap:PrivatePlacement


Proceeds
Period End2021-01-26
Value15
Percentage of ProceedsFromIssuanceOfWarrants100.0

us-gaap:ProceedsFromIssuanceOfWarrants us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsidiarySaleOfStock

lmca:LibertyMediaAcquisitionCorporation, us-gaap:Warrant, lmca:LibertyMediaAcquisitionSponsorLlc, us-gaap:PrivatePlacement


Proceeds
Period End2021-01-26
Value15
Percentage of ProceedsFromIssuanceOfWarrants100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-10.0-24.0-24.0-46.0-13.0-7.00.0-37.0-22.05.0-4.050-68.04.03.05.0-33.02.05.0131.00.0-6.010.0-19.0-8.08.012-36.09.08.0-65.07.03.00.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.00.03.010.05316301721551.02349.01.0141.03.068120.00.04062730.087
Percentage of ProceedsFromSaleOfProductiveAssets0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0

us-gaap:RelatedPartyTransactionAmountsOfTransaction us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:RelatedPartyTransactionAmountsOfTransaction

lmca:QurateRetailLibertyTripadvisorLibertyBroadbandLmacGciLiberty


Related
Period End2021-06-302021-03-312020-06-302020-03-31
Value8.08.07.010.0
Percentage of RelatedPartyTransactionAmountsOfTransaction100.0100.0100.0100.0

lmca:QurateRetailTripcoLibertyBroadbandExpediaHoldingsGciLiberty


Related
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6.06.07.010.07.0238.08.09.08.05.08.07.06.07.05.0
Percentage of RelatedPartyTransactionAmountsOfTransaction0.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty dei:LegalEntity, us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

lmca:SiriusXmHoldings, lmca:PandoraSoundcloudAdvertisingAgreement, lmca:SoundcloudHoldingsLlc


Related
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value14131310.012139.0
Percentage of RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges dei:LegalEntity

us-gaap:RestructuringCharges

lmca:SiriusXmHoldings


Restructuring
Period End2020-09-302020-06-30
Value0.024
Percentage of RestructuringCharges0.0100.0

us-gaap:RestructuringCostsAndAssetImpairmentCharges dei:LegalEntity

us-gaap:RestructuringCostsAndAssetImpairmentCharges

lmca:SiriusXmHoldings


Restructuring
Period End2021-06-302021-03-31
Value0.025
Percentage of RestructuringCostsAndAssetImpairmentCharges0.0100.0

us-gaap:RestructuringSettlementAndImpairmentProvisions

us-gaap:RestructuringSettlementAndImpairmentProvisions


Restructuring
Period End2021-06-302021-03-312020-06-30
Value-137.024524
Percentage of RestructuringSettlementAndImpairmentProvisions100.0100.0100.0

us-gaap:RevenueFromRelatedParties dei:LegalEntity, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:RevenueFromRelatedParties

lmca:SiriusXmHoldings, lmca:SiriusXmCanada


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2525242523252525242425252324
Percentage of RevenueFromRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue dei:LegalEntity, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

lmca:SiriusXmHoldings, us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312019-09-302019-06-302019-03-31
Value0.085.950.13-0.085.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.00.0162.0560.0210.0060.1370.3750.00.00.0070.0050.00.00.0460.0160.00.00.1680.0050.004
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.7480.8050.0320.0131.6810.7280.00.02.2310.0220.00.02.0260.0760.00.02.263
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.04675.039.2152.4216.71227.0194.10.00.031871.4440.00.00.04404.3475.00.00.01347.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.00.290.9860.0380.0130.3881.1070.00.00.4910.0330.00.00.6330.1150.00.920.1480.0440.025
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.01812.548.0181.0216.7283.2295.20.00.07014.3660.00.00.01376.1718.80.00.088.1880.0625.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:StatementClassOfStock

lmca:LibertyBravesGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value0.021
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod100.0

lmca:LibertyBravesGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.00.016
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.0100.0

lmca:LibertyBravesGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2020-09-302020-06-302020-03-312019-09-30
Value0.00.00.1370.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.00.0100.00.0

lmca:LibertyFormulaOneGroup, lmca:Formula1Employees, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.00.7180.00.01.4350.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.04487.50.00.01047.40.0

lmca:LibertyFormulaOneGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value0.032
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod152.4

lmca:LibertyFormulaOneGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.00.03
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.0187.5

lmca:LibertyFormulaOneGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2020-09-302020-06-302020-03-312019-09-30
Value0.00.00.2460.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.00.0179.60.0

lmca:LibertySiriusXmGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value0.038
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod181.0

lmca:LibertySiriusXmGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.00.033
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.0206.2

lmca:LibertySiriusXmGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.00.2570.00.00.3880.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.01606.20.00.0283.20.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:StatementClassOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

srt:ChiefExecutiveOfficer, lmca:LibertyBravesGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value352220.0313340.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross100.0100.0

srt:ChiefExecutiveOfficer, lmca:LibertyFormulaOneGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value544510.0588950.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross154.6188.0

srt:ChiefExecutiveOfficer, lmca:LibertySiriusXmGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value665140.0927330.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross188.8295.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue lmca:EconomicPerformanceGroup, us-gaap:TitleOfIndividual, us-gaap:StatementClassOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

lmca:LibertyBravesGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value-3.3999999999999987e-07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

lmca:LibertyBravesGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.01.007e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

lmca:LibertyBravesGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2020-09-302020-06-302020-03-312019-09-30
Value0.00.04.67e-060.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-0.00.00.00.0

lmca:LibertyFormulaOneGroup, lmca:Formula1Employees, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.01.596e-050.00.07.55e-060.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0-0.00.00.00.0

lmca:LibertyFormulaOneGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value1.7700000000000013e-06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-520.6

lmca:LibertyFormulaOneGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.01.596e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

lmca:LibertyFormulaOneGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2020-09-302020-06-302020-03-312019-09-30
Value0.00.07.55e-060.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-0.00.00.00.0

lmca:LibertySiriusXmGroup, lmca:LibertyEmployees, us-gaap:CommonClassC


Share
Period End2020-09-30
Value8.099999999999987e-07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-238.2

lmca:LibertySiriusXmGroup, lmca:LibertyEmployeesAndDirectors, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-31
Value0.01.373e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

lmca:LibertySiriusXmGroup, srt:ChiefExecutiveOfficer, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.01.373e-050.00.08.720000000000001e-060.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0-0.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:StatementClassOfStock

srt:ChiefExecutiveOfficer, lmca:LibertyBravesGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value2.636e-052.9100000000000003e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

srt:ChiefExecutiveOfficer, lmca:LibertyFormulaOneGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value4.3009999999999996e-054.385e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

srt:ChiefExecutiveOfficer, lmca:LibertySiriusXmGroupCommonClassC


Share
Period End2020-12-312019-12-31
Value4.2130000000000005e-054.711e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice lmca:EconomicPerformanceGroup

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

lmca:LibertyBravesGroup


Share
Period End2021-06-302021-03-31
Value011.89
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0100.0

lmca:LibertyFormulaOneGroup


Share
Period End2021-06-302021-03-31
Value012.63
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0106.2

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.5815.360.8605.0511.19-0.14-0.160.1511.52-1.40.88-5.0417.5300.1-1.9610.91-0.070
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0129.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-1.7322.91-1.3212.59-9.5514.29-0.212.86011.1800.650.729.71
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0192.70.00.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassA


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.39019.94-0.18-0.010.4719.51-0.26-0.060.119.65-0.030.152.5415.080.080.55
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.1431.52.60.034.7123.76-0.91-0.562.2419.65-0.20.140.3719.50.340.381.915.52-0.420.47
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0264.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value031.246.42-0.060.0520.071.20027.730.20023.34-0.080023.450.660.16
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value045.884.50.210.0328.612.440033.94-0.010031.560.060033.98
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0146.970.1-350.060.0142.6203.30.00.0122.4-5.00.00.0135.2-75.00.00.0144.9

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value045.341.97-0.32-0.2639.874.550040.53-0.160042.50.530-2.0939.210.250.06
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0145.130.7533.3-520.0198.7379.20.00.0146.2-80.00.00.0182.1-662.50.00.0167.237.937.5

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised lmca:EconomicPerformanceGroup, us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

lmca:LibertyBravesGroup, us-gaap:CommonClassC


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value6000.03000.01000.008000.03000.0252000.052000.039000.015000.02000.003000.01000.0009000.012000.01000.018000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, us-gaap:CommonClassC


Stock
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value43000.011000.064000.0339000.0865000.0386000.05000.075000.029000.014000.04000.028000.065000.080000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised716.7366.76400.00.0343.3742.3250.00.0966.71400.00.00.0722.2666.7

lmca:LibertySiriusXmGroup, us-gaap:CommonClassA


Stock
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0017000.01184000.0104000.032000.061000.09000.026000.0149000.039000.012000.045000.0193000.0142000.098000.073000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised0.00.0566.7469.8200.082.1406.7450.00.04966.73900.00.00.02144.41183.39800.0405.6

lmca:LibertySiriusXmGroup, us-gaap:CommonClassC


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value141000.031000.0251000.02000.083000.036000.02581000.0199000.068000.075000.027000.027000.0347000.096000.057000.0133000.0294000.0326000.0379000.0106000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised2350.01033.325100.00.01037.51200.01024.2382.7174.4500.01350.00.011566.79600.00.00.03266.72716.737900.0588.9

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-12-312015-09-302015-06-302015-03-31
Value136107114660.01386968842229815018731653-3.0-242.0-58.0
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-12-312015-09-302015-06-302015-03-31
Value136107114660.01386968842229815018731653-3.0-242.0-58.0
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-7.0-1.0-53.0122220-94.082242.00.056652.0-1.0-1.01.00.01.01.0-6.01.00.0-2.014
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-7.0-3.0-5.01.02.0-97.066372.0-121.04150-1.00.0-1.01.00.01.01.03.01.064-66.014
Percentage of StockholdersEquityOther100.05.7-41.74.510.0103.280.5154.2100.00.073.276.9-50.0-0.0100.0100.00.0100.0100.0-50.0100.00.03300.0100.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-31
Value0.0-1.0-50.01715173.01624341515-1.0
Percentage of StockholdersEquityOther-0.0100.094.3141.768.285.0-3.219.5100.00.026.823.1-50.0

us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312015-03-31
Value0.00.06.01.00.00.00.04.064
Percentage of StockholdersEquityOther-0.00.027.35.00.00.00.0200.0-3200.0

us-gaap:TemporaryEquityNetIncome

us-gaap:TemporaryEquityNetIncome


Temporary
Period End2021-06-302021-03-31
Value7000000.0-12000000.0
Percentage of TemporaryEquityNetIncome100.0100.0

dei:EntityCommonStockSharesOutstanding us-gaap:StatementClassOfStock

dei:EntityCommonStockSharesOutstanding

lmca:LibertyBravesGroupCommonClass


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value1010101010101010101010101010
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyBravesGroupCommonClassB


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value0.9818140.9818240.9818240.981860.981860.981860.981860.981860.981860.981860.981860.981860.9867910.986791
Percentage of EntityCommonStockSharesOutstanding9.59.59.59.69.69.69.69.69.69.69.69.69.69.6

lmca:LibertyBravesGroupCommonClassC


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value3939393939393939393939383838
Percentage of EntityCommonStockSharesOutstanding387.2387.2386.9387.6387.9388.0387.9387.9387.9387.9387.8373.3373.5373.5

lmca:LibertyFormulaOneGroupCommonClass


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value2525252525252525252525252525
Percentage of EntityCommonStockSharesOutstanding250.5250.5250.5250.4250.6250.5250.6250.6250.5250.4250.4250.4250.4250.2

lmca:LibertyFormulaOneGroupCommonClassB


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value2.4481152.4481412.4481412.4489032.4491852.4534852.4534852.4534852.4541262.4544482.4544482.4544482.4667782.466778
Percentage of EntityCommonStockSharesOutstanding23.723.723.723.823.923.923.924.024.024.024.024.024.124.1

lmca:LibertyFormulaOneGroupCommonClassC


Entity
Period End2020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value203203203203203202202202202202202201186173
Percentage of EntityCommonStockSharesOutstanding1972.71972.71972.11977.41979.41980.11980.41980.51979.81979.71979.11967.01825.71698.7

lmca:LibertySiriusXmGroupCommonClass


Entity
Period End2021-01-312020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value99101101102102102102102102102102102102102102
Percentage of EntityCommonStockSharesOutstanding0.0983.5983.5993.51002.51003.41003.51003.61003.51003.51002.91002.71002.61002.41001.2

lmca:LibertySiriusXmGroupCommonClassB


Entity
Period End2021-01-312020-07-312020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312018-04-302018-01-312017-10-312017-07-312017-04-30
Value9.8022329.8081059.8082329.8082329.8107779.8147779.8215319.8215319.8215319.8215319.8215319.8215319.8215319.8708569.870856
Percentage of EntityCommonStockSharesOutstanding0.095.195.195.195.595.795.895.995.995.995.995.995.996.496.4

lmca:LibertySiriusXmGroupCommonClassC


Entity
Period End2021-01-312020-07-312020-04-302020-01-31
Value229232202203
Percentage of EntityCommonStockSharesOutstanding0.02252.31962.71969.0

lmca:AggregateCoverageAmountUnderInsurancePolicy dei:LegalEntity

lmca:AggregateCoverageAmountUnderInsurancePolicy

lmca:SiriusXmHoldings


Aggregate
Period End2020-12-31
Value225
Percentage of AggregateCoverageAmountUnderInsurancePolicy100.0

lmca:CompensationGuaranteeAggregateTotal dei:LegalEntity

lmca:CompensationGuaranteeAggregateTotal

lmca:Anlbc


Compensation
Period End2021-06-302021-03-312020-09-30
Value392387332
Percentage of CompensationGuaranteeAggregateTotal100.0100.0100.0

lmca:CompensationGuaranteeAggregateTotal us-gaap:StatementBusinessSegments

lmca:Anlbc


Compensation
Period End2020-12-31
Value287
Percentage of CompensationGuaranteeAggregateTotal0.0

lmca:DebtInstrumentMinimumLiquidityToBeMaintained dei:LegalEntity, us-gaap:DebtInstrument

lmca:DebtInstrumentMinimumLiquidityToBeMaintained

lmca:FormulaOne, lmca:SeniorLoanFacilities


Debt
Period End2020-09-30
Value200
Percentage of DebtInstrumentMinimumLiquidityToBeMaintained100.0

lmca:DebtInstrumentMinimumLiquidityToBeMaintained lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

lmca:LibertyFormulaOneGroup, us-gaap:RevolvingCreditFacility


Debt
Period End2020-12-31
Value200
Percentage of DebtInstrumentMinimumLiquidityToBeMaintained0.0

lmca:DebtInstrumentNetOfUnamortizedDiscountPremium dei:LegalEntity

lmca:DebtInstrumentNetOfUnamortizedDiscountPremium

lmca:Anlbc


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value694676674559
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium100.0100.0100.0100.0

lmca:DebtInstrumentNetOfUnamortizedDiscountPremium dei:LegalEntity, us-gaap:DebtInstrument

lmca:Anlbc, lmca:AnlbcTermLoan


Debt
Period End2021-03-312020-12-312019-12-31
Value464649
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium6.86.88.8

lmca:Anlbc, lmca:BravesHoldingsFloatingRateNotes


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value58596065
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium8.48.78.911.6

lmca:Anlbc, lmca:BravesHoldingsMixedUseFacilityCreditFacilitiesTotal


Debt
Period End2020-12-312019-12-31
Value239180
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium35.532.2

lmca:Anlbc, lmca:BravesHoldingsSeniorSecuredNotes


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value181181184190
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium26.126.827.334.0

lmca:Anlbc, lmca:OperatingCreditFacility


Debt
Period End2020-12-312019-12-31
Value11545
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium17.18.1

lmca:Anlbc, lmca:StadiumCreditFacility


Debt
Period End2021-06-30
Value46
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium6.6

lmca:FormulaOne, lmca:SeniorLoanFacilities


Debt
Period End2021-06-302021-03-312018-01-312017-08-032017-08-02
Value29002900290033003100
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium417.9429.00.00.00.0

lmca:DebtInstrumentNetOfUnamortizedDiscountPremium dei:LegalEntity, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

lmca:Anlbc, lmca:BravesHoldingsMixedUseFacilityCreditFacilitiesTotal, us-gaap:RevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-31
Value254245239
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium36.636.235.5

lmca:Anlbc, lmca:OperatingCreditFacility, us-gaap:RevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-31
Value125115115
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium18.017.017.1

lmca:DebtInstrumentNetOfUnamortizedDiscountPremium lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

lmca:LibertyBravesGroup, lmca:NotesAndLoans


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value694676674559
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup, lmca:Exchangeable2.25SeniorDebenturesDue2046


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value26206209257
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium3.730.531.046.0

lmca:LibertyFormulaOneGroup, lmca:Liberty1CashConvertibleNotesDue2023


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value621580582585
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium89.585.886.4104.7

lmca:LibertyFormulaOneGroup, lmca:SeniorLoanFacility


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value2902290329042907
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium418.2429.4430.9520.0

lmca:LibertyFormulaOneGroup, us-gaap:OtherDebtSecurities


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value71737432
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium10.210.811.05.7

lmca:LibertySiriusXmGroup, lmca:A1.375CashConvertibleSeniorNotesDue2023


Debt
Period End2021-06-302021-03-312020-12-31
Value133013091251
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium191.6193.6185.6

lmca:LibertySiriusXmGroup, lmca:Exchangeable0.5SeniorDebenturesDue2050


Debt
Period End2021-06-302021-03-312020-12-31
Value10631067982
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium153.2157.8145.7

lmca:LibertySiriusXmGroup, lmca:Exchangeable2.125SeniorDebenturesDue2048


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value419414418423
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium60.461.262.075.7

lmca:LibertySiriusXmGroup, lmca:Exchangeable2.25SeniorDebenturesDue2048


Debt
Period End2021-06-302021-03-312020-12-31
Value517514475
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium74.576.070.5

lmca:LibertySiriusXmGroup, lmca:Exchangeable2.75SeniorDebenturesDue2049


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value635628628632
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium91.592.993.2113.1

lmca:LibertySiriusXmGroup, lmca:Pandora1.75PercentConvertibleSeniorNotesDue2023


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value173172170163
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium24.925.425.229.2

lmca:LibertySiriusXmGroup, lmca:SiriusXm3.875SeniorNotesDue2022


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value998998997995
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium143.8147.6147.9178.0

lmca:LibertySiriusXmGroup, lmca:SiriusXm4.0SeniorNotesDue2028


Debt
Period End2021-06-30
Value1978
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium285.0

lmca:LibertySiriusXmGroup, lmca:SiriusXm4.125PercentageSeniorNotesDue2030


Debt
Period End2021-06-302021-03-312020-12-31
Value148514841484
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium214.0219.5220.2

lmca:LibertySiriusXmGroup, lmca:SiriusXm4.625SeniorNotesDue2024


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value1489148914881485
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium214.6220.3220.8265.7

lmca:LibertySiriusXmGroup, lmca:SiriusXm5.00SeniorNotesDue2027


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value1490149014901488
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium214.7220.4221.1266.2

lmca:LibertySiriusXmGroup, lmca:SiriusXm5.375SeniorNotesDue2026


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value994993993992
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium143.2146.9147.3177.5

lmca:LibertySiriusXmGroup, lmca:SiriusXm5.50SeniorNotesDue2029


Debt
Period End2021-06-302021-03-312020-12-312019-12-31
Value1238123812371236
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium178.4183.1183.5221.1

lmca:LibertySiriusXmGroup, lmca:SiriusXmCreditFacility


Debt
Period End2021-03-312020-12-31
Value1023649
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium151.396.3

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldingsMarginLoan


Debt
Period End2021-06-302021-03-312020-12-312020-04-222019-12-31
Value875875750750350
Percentage of DebtInstrumentNetOfUnamortizedDiscountPremium126.1129.4111.30.062.6

lmca:DebtInstrumentRedemptionPrice lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

lmca:DebtInstrumentRedemptionPrice

lmca:LibertySiriusXmGroup, lmca:SiriusXM4.625SeniorNotesDue2023


Debt
Period End2020-07-31
Value507
Percentage of DebtInstrumentRedemptionPrice100.0

lmca:LibertySiriusXmGroup, lmca:SiriusXm4.625SeniorNotesDue2024


Debt
Period End2020-07-09
Value507
Percentage of DebtInstrumentRedemptionPrice0.0

lmca:DeferredTaxAssetDiscountOnExchangeableDebentures

lmca:DeferredTaxAssetDiscountOnExchangeableDebentures


Deferred
Period End2020-12-312019-12-312013-12-312012-12-31
Value2545340.0
Percentage of DeferredTaxAssetDiscountOnExchangeableDebentures100.0100.0100.00.0

lmca:DeferredTaxAssetsInterestExpenseCarryforwardsNotSubjectToExpiration us-gaap:IncomeTaxAuthority

lmca:DeferredTaxAssetsInterestExpenseCarryforwardsNotSubjectToExpiration

us-gaap:DomesticCountry


Deferred
Period End2020-12-312019-12-31
Value9785
Percentage of DeferredTaxAssetsInterestExpenseCarryforwardsNotSubjectToExpiration100.0100.0

us-gaap:ForeignCountry


Deferred
Period End2020-12-312019-12-31
Value214130
Percentage of DeferredTaxAssetsInterestExpenseCarryforwardsNotSubjectToExpiration220.6152.9

lmca:DeferredTaxLiabilitiesAssetsNoncurrent

lmca:DeferredTaxLiabilitiesAssetsNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value2156204321262065200419641913187218241750165116101551151014782025
Percentage of DeferredTaxLiabilitiesAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFiveYearsAfterBalanceSheetDate dei:LegalEntity

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFiveYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Estimated
Period End2020-12-31
Value121
Percentage of EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFiveYearsAfterBalanceSheetDate100.0

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFourYearsAfterBalanceSheetDate dei:LegalEntity

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFourYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Estimated
Period End2020-12-31
Value163
Percentage of EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesFourYearsAfterBalanceSheetDate100.0

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesOneYearAfterBalanceSheetDate dei:LegalEntity

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesOneYearAfterBalanceSheetDate

lmca:SiriusXmHoldings


Estimated
Period End2020-12-31
Value709
Percentage of EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesOneYearAfterBalanceSheetDate100.0

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesThreeYearsAfterBalanceSheetDate dei:LegalEntity

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesThreeYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Estimated
Period End2020-12-31
Value234
Percentage of EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesThreeYearsAfterBalanceSheetDate100.0

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesTwoYearsAfterBalanceSheetDate dei:LegalEntity

lmca:EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesTwoYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Estimated
Period End2020-12-31
Value496
Percentage of EstimatedAmountsPayableForFutureProgrammingAndMusicRoyaltiesTwoYearsAfterBalanceSheetDate100.0

lmca:GuaranteedEmploymentContractDueInFiveYears us-gaap:StatementBusinessSegments

lmca:GuaranteedEmploymentContractDueInFiveYears

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value28
Percentage of GuaranteedEmploymentContractDueInFiveYears100.0

lmca:GuaranteedEmploymentContractDueInFourYears dei:LegalEntity

lmca:GuaranteedEmploymentContractDueInFourYears

lmca:Anlbc


Guaranteed
Period End2021-06-302021-03-312020-09-30
Value484833
Percentage of GuaranteedEmploymentContractDueInFourYears100.0100.0100.0

lmca:GuaranteedEmploymentContractDueInFourYears us-gaap:StatementBusinessSegments

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value28
Percentage of GuaranteedEmploymentContractDueInFourYears0.0

lmca:GuaranteedEmploymentContractDueInOneYear us-gaap:StatementBusinessSegments

lmca:GuaranteedEmploymentContractDueInOneYear

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value128
Percentage of GuaranteedEmploymentContractDueInOneYear100.0

lmca:GuaranteedEmploymentContractDueInThreeYears dei:LegalEntity

lmca:GuaranteedEmploymentContractDueInThreeYears

lmca:Anlbc


Guaranteed
Period End2021-06-302021-03-312020-09-30
Value545442
Percentage of GuaranteedEmploymentContractDueInThreeYears100.0100.0100.0

lmca:GuaranteedEmploymentContractDueInThreeYears us-gaap:StatementBusinessSegments

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value33
Percentage of GuaranteedEmploymentContractDueInThreeYears0.0

lmca:GuaranteedEmploymentContractDueInTwoYears dei:LegalEntity

lmca:GuaranteedEmploymentContractDueInTwoYears

lmca:Anlbc


Guaranteed
Period End2021-06-302021-03-312020-09-30
Value636397
Percentage of GuaranteedEmploymentContractDueInTwoYears100.0100.0100.0

lmca:GuaranteedEmploymentContractDueInTwoYears us-gaap:StatementBusinessSegments

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value43
Percentage of GuaranteedEmploymentContractDueInTwoYears0.0

lmca:GuaranteedEmploymentContractDueReminderOfFiscalYear dei:LegalEntity

lmca:GuaranteedEmploymentContractDueReminderOfFiscalYear

lmca:Anlbc


Guaranteed
Period End2021-06-302021-03-312020-09-30
Value17216772
Percentage of GuaranteedEmploymentContractDueReminderOfFiscalYear100.0100.0100.0

lmca:GuaranteedEmploymentContractDueThereafter dei:LegalEntity

lmca:GuaranteedEmploymentContractDueThereafter

lmca:Anlbc


Guaranteed
Period End2021-06-302021-03-312020-09-30
Value555588
Percentage of GuaranteedEmploymentContractDueThereafter100.0100.0100.0

lmca:GuaranteedEmploymentContractDueThereafter us-gaap:StatementBusinessSegments

lmca:Anlbc


Guaranteed
Period End2020-12-31
Value27
Percentage of GuaranteedEmploymentContractDueThereafter0.0

lmca:IndefiniteLivedIntangibleAssetsTotal

lmca:IndefiniteLivedIntangibleAssetsTotal


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-03-312012-12-31
Value292322920929203299612996129944299442995729953299322806028060280572805728057280692807227986240182401824018240182401824018240182401824018240642403823889344
Percentage of IndefiniteLivedIntangibleAssetsTotal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:MaximumLoansConvertibleIntoWarrants dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

lmca:MaximumLoansConvertibleIntoWarrants

lmca:LibertyMediaAcquisitionSponsorLlc, lmca:LmacWorkingCapitalLoan


Maximum
Period End2021-04-15
Value2500000.0
Percentage of MaximumLoansConvertibleIntoWarrants100.0

lmca:MaximumLoansConvertibleIntoWarrants dei:LegalEntity, us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType, us-gaap:SubsequentEventType

lmca:LibertyMediaAcquisitionSponsorLlc, lmca:LmacWorkingCapitalLoan, us-gaap:SubsequentEvent


Maximum
Period End2021-04-15
Value2500000.0
Percentage of MaximumLoansConvertibleIntoWarrants100.0

lmca:OperatingLossAndTaxCreditCarryforwardsValuationAllowance

lmca:OperatingLossAndTaxCreditCarryforwardsValuationAllowance


Operating
Period End2020-12-31
Value293
Percentage of OperatingLossAndTaxCreditCarryforwardsValuationAllowance100.0

lmca:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossCumulativeValueBeforeTax us-gaap:FinancialInstrument

lmca:OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossCumulativeValueBeforeTax

lmca:DebtMeasuredAtFairValue


Other
Period End2021-06-302021-03-312020-12-312020-09-30
Value107114175136
Percentage of OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossCumulativeValueBeforeTax100.0100.0100.0100.0

lmca:SecuritiesBasketPricePerShare us-gaap:OptionIndexedToIssuersEquityType, us-gaap:StatementClassOfStock

lmca:SecuritiesBasketPricePerShare

lmca:A1.375ConvertibleNotesBondHedgeTransaction, us-gaap:CommonClassA


Securities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value61.0657.4556.0944.3644.5640.2662.5154.4949.849.7346.9455.356.6750.8950.2453.7853.3349.744.5843.0437.78
Percentage of SecuritiesBasketPricePerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:SiriusXmOtherContractualArrangementsAmountsPayableFiveYearsAfterBalanceSheetDate dei:LegalEntity

lmca:SiriusXmOtherContractualArrangementsAmountsPayableFiveYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Sirius
Period End2020-12-31
Value14
Percentage of SiriusXmOtherContractualArrangementsAmountsPayableFiveYearsAfterBalanceSheetDate100.0

lmca:SiriusXmOtherContractualArrangementsAmountsPayableFourYearsAfterBalanceSheetDate dei:LegalEntity

lmca:SiriusXmOtherContractualArrangementsAmountsPayableFourYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Sirius
Period End2020-12-31
Value15
Percentage of SiriusXmOtherContractualArrangementsAmountsPayableFourYearsAfterBalanceSheetDate100.0

lmca:SiriusXmOtherContractualArrangementsAmountsPayableOneYearAfterBalanceSheetDate dei:LegalEntity

lmca:SiriusXmOtherContractualArrangementsAmountsPayableOneYearAfterBalanceSheetDate

lmca:SiriusXmHoldings


Sirius
Period End2020-12-31
Value127
Percentage of SiriusXmOtherContractualArrangementsAmountsPayableOneYearAfterBalanceSheetDate100.0

lmca:SiriusXmOtherContractualArrangementsAmountsPayableThreeYearsAfterBalanceSheetDate dei:LegalEntity

lmca:SiriusXmOtherContractualArrangementsAmountsPayableThreeYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Sirius
Period End2020-12-31
Value23
Percentage of SiriusXmOtherContractualArrangementsAmountsPayableThreeYearsAfterBalanceSheetDate100.0

lmca:SiriusXmOtherContractualArrangementsAmountsPayableTwoYearsAfterBalanceSheetDate dei:LegalEntity

lmca:SiriusXmOtherContractualArrangementsAmountsPayableTwoYearsAfterBalanceSheetDate

lmca:SiriusXmHoldings


Sirius
Period End2020-12-31
Value31
Percentage of SiriusXmOtherContractualArrangementsAmountsPayableTwoYearsAfterBalanceSheetDate100.0

lmca:TargetVotingPowerAdditonalConditionalPercentage us-gaap:StatementScenario, us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement

lmca:TargetVotingPowerAdditonalConditionalPercentage

lmca:TargetVotingPowerLess, lmca:JohnC.MaloneChairman, lmca:ExchangeAgreementWithChairman


Target
Period End2021-06-30
Value0.5
Percentage of TargetVotingPowerAdditonalConditionalPercentage100.0

lmca:TargetVotingPowerPlus, lmca:JohnC.MaloneChairman, lmca:ExchangeAgreementWithChairman


Target
Period End2021-06-30
Value0.5
Percentage of TargetVotingPowerAdditonalConditionalPercentage100.0

lmca:TargetVotingPowerAdditonalConditionalPercentage us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement

lmca:JohnC.MaloneChairman, lmca:ExchangeAgreementWithChairman


Target
Period End2021-07-28
Value0.5
Percentage of TargetVotingPowerAdditonalConditionalPercentage0.0

lmca:TargetVotingPowerPercentage us-gaap:TitleOfIndividual, us-gaap:TypeOfArrangement

lmca:TargetVotingPowerPercentage

lmca:JohnC.MaloneChairman, lmca:ExchangeAgreementWithChairman


Target
Period End2021-07-282021-06-30
Value49.00.5
Percentage of TargetVotingPowerPercentage100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value171820129.06.08.04.03639
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationContingentConsiderationLiability

lmca:SiriusXmHoldings, lmca:Stitcher


Business
Period End2020-10-16
Value30
Percentage of BusinessCombinationContingentConsiderationLiability100.0

us-gaap:BusinessCombinationContingentConsiderationLiability dei:LegalEntity, us-gaap:Range, us-gaap:BusinessAcquisition

lmca:SiriusXmHoldings, srt:Maximum, lmca:Stitcher


Business
Period End2020-10-16
Value60
Percentage of BusinessCombinationContingentConsiderationLiability200.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill dei:LegalEntity, us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

lmca:SiriusXmHoldings, lmca:Stitcher


Business
Period End2020-10-16
Value38
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByAssetClass

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:EstimateOfFairValueFairValueDisclosure


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value258699223180428968507859561
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Cash
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2586992231221295824804537502631289317690441683934496655072143441758593671731590561
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value252627042586166819041370992450354434231
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value252627042586166819041370992450354434231
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:ClassOfWarrantOrRightOutstanding us-gaap:ConsolidatedEntities, us-gaap:ClassOfWarrantOrRight, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsidiarySaleOfStock

us-gaap:ClassOfWarrantOrRightOutstanding

lmca:LibertyMediaAcquisitionCorporation, us-gaap:Warrant, lmca:LibertyMediaAcquisitionSponsorLlc, us-gaap:PrivatePlacement


Class
Period End2021-01-26
Value10.0
Percentage of ClassOfWarrantOrRightOutstanding100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance lmca:EconomicPerformanceGroup

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

lmca:LibertyBravesGroup


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3.53.53.51.41.41.41.31.31.41.41.51.51.51.51.41.41.41.41.31.31.3
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lmca:LibertyFormulaOneGroup


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1111109.710.010.08.38.79.29.37.07.07.17.25.25.15.15.23.1
Percentage of CommonStockCapitalSharesReservedForFutureIssuance317.1317.1297.1692.9714.3714.3638.5669.2657.1664.3466.7466.7473.3480.0371.4364.3364.3371.4238.5

lmca:LibertySiriusXmGroup


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1111101010109.81213131212121313121312131313
Percentage of CommonStockCapitalSharesReservedForFutureIssuance314.3317.1311.4721.4721.4728.6753.8961.5935.7950.0860.0860.0860.0900.0928.6921.4935.7907.11000.01038.51046.2

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1826917452169541542916936154461496414478142691393813421131521301414009138101324313305131867973809975827156693868806656652158916116
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount lmca:EconomicPerformanceGroup

lmca:LibertyBravesGroup


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value694676674714718698559540470480494626629603667585511420338211137108
Percentage of DebtInstrumentCarryingAmount3.83.94.04.64.24.53.73.73.33.43.74.84.84.34.84.43.83.24.22.61.81.5

lmca:LibertyFormulaOneGroup


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value3448362636293632363554505107497949804982498349515027538155825609603364751481
Percentage of DebtInstrumentCarryingAmount18.920.821.423.521.535.334.134.434.935.737.137.638.638.440.442.445.349.118.6

lmca:LibertySiriusXmGroup


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value141271315012651110831258392989298895988198476794475757358802575617049676162916154640764086011
Percentage of DebtInstrumentCarryingAmount77.375.374.671.874.360.262.161.961.860.859.257.656.557.354.853.250.847.777.279.184.584.0

us-gaap:DebtInstrumentCarryingAmount lmca:EconomicPerformanceGroup, us-gaap:DebtInstrument

lmca:LibertyBravesGroup, lmca:NotesAndLoans


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value694676674714718698559540470480
Percentage of DebtInstrumentCarryingAmount3.83.94.04.64.24.53.73.73.33.4

lmca:LibertyFormulaOneGroup, lmca:Exchangeable2.25SeniorDebenturesDue2046


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value25201203204206207208210211212
Percentage of DebtInstrumentCarryingAmount0.11.21.21.31.21.31.41.51.51.5

lmca:LibertyFormulaOneGroup, lmca:SeniorLoanFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2902290229022902290233772902290229022902
Percentage of DebtInstrumentCarryingAmount15.916.617.118.817.121.919.420.020.320.8

lmca:LibertyFormulaOneGroup, us-gaap:OtherDebtSecurities


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value71737476773132323233
Percentage of DebtInstrumentCarryingAmount0.40.40.40.50.50.20.20.20.20.2

lmca:LibertySiriusXmGroup, lmca:SiriusXm4.0SeniorNotesDue2028


Debt
Period End2021-06-30
Value2000
Percentage of DebtInstrumentCarryingAmount10.9

lmca:LibertySiriusXmGroup, lmca:SiriusXmCreditFacility


Debt
Period End2021-03-312020-12-312019-09-302019-03-31
Value102364965582
Percentage of DebtInstrumentCarryingAmount5.93.80.44.2

lmca:LibertySiriusXmGroup, lmca:SiriusXmHoldingsMarginLoan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value875875750750750350350550475800
Percentage of DebtInstrumentCarryingAmount4.85.04.44.94.42.32.33.83.35.7

us-gaap:DebtInstrumentCollateralAmount us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

us-gaap:DebtInstrumentCollateralAmount

lmca:LiveNation, lmca:LiveNationMarginLoan


Debt
Period End2020-12-31
Value659
Percentage of DebtInstrumentCollateralAmount100.0

us-gaap:DebtInstrumentConvertibleConversionPrice1 lmca:EconomicPerformanceGroup, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DebtInstrument

us-gaap:DebtInstrumentConvertibleConversionPrice1

lmca:LibertySiriusXmGroup, lmca:LiveNation, lmca:Exchangeable0.5SeniorDebenturesDue2050


Debt
Period End2020-11-30
Value90.1
Percentage of DebtInstrumentConvertibleConversionPrice1100.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByAssetClass

us-gaap:DebtInstrumentFairValue

us-gaap:EstimateOfFairValueFairValueDisclosure


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4545367824872115154699599010020.0
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Debt
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value454536782487238824012482211522262183210715461510994998995960941990990983102594210020.0
Percentage of DebtInstrumentFairValue100.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value46114718454532373091285636782812272326642487
Percentage of DebtInstrumentFairValue0.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Debt
Period End2021-06-30