MPC


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfGoodsAndServicesSold
us-gaap:DisposalGroupClassification

us-gaap:CostsAndExpenses
us-gaap:DisposalGroupClassification

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestAndDebtExpense
us-gaap:DisposalGroupClassification

us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:DisposalGroupClassification
us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupClassification

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

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

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:DisposalGroupClassification

us-gaap:Assets
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:Liabilities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:Cash
us-gaap:BalanceSheetLocation

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:DisposalGroupClassification

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:InventoryNet
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:InventoryLIFOReserve

us-gaap:OtherAssetsCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
mpc:MajorAssetClass, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Goodwill
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AccountsPayableCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AccruedIncomeTaxesCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DebtCurrent

us-gaap:LiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:OperatingLeaseLiabilityCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:OtherLiabilitiesCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LiabilitiesNoncurrent

us-gaap:DebtAndCapitalLeaseObligations
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtAndCapitalLeaseObligations
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:RetirementPlanType

us-gaap:MinorityInterest

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

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
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:AmortizationOfFinancingCosts

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupClassification

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:ShareRepurchaseProgram
us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities
us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

mpc:CapitalExpenditure
us-gaap:ConsolidationItems
mpc:CapitalExpendituresAndInvestments
us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems
mpc:CapitalExpendituresExcludingCapitalizedInterest

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents
mpc:DeferredIncomeTaxChargeBenefitFromChangesInEquity
us-gaap:StatementEquityComponents
mpc:Deferredincometaximpactfromchangesinequity
us-gaap:Energy, us-gaap:TransactionType
mpc:DerivativeInstrumentsPercentageOfDerivativeContractsExpiration1
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
mpc:DiscontinuedOperationCurrentIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
mpc:DiscontinuedOperationDeferredIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation

mpc:EffectiveIncomeTaxReconciliationCARESActlegislation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
mpc:FairValueInputsProbabilityOfRenewal
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
mpc:FairValueInputsProbabilityOfRenewalFirstTerm
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
mpc:FairValueInputsProbabilityofRenewalSecondTerm

mpc:ImpairmentCharges
us-gaap:ConsolidationItems

mpc:IncomeTaxReconciliationAccrualOfUnrecognizedTaxBenefits

mpc:IncreaseDecreaseInAccrualForCapitalExpenditures
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
mpc:LineOfCreditFacilityTermination

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation
us-gaap:StatementEquityComponents

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

mpc:PensionandOtherPostretirementBenefitNet
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
mpc:ProceedsFromDivestitureOfBusinessesNetOfTax
us-gaap:DisposalGroupClassification
mpc:RevenueFromContractWithCustomerExcludingAssessedTaxAndOtherIncome

mpc:RevenuesAndOtherIncome
us-gaap:DisposalGroupClassification

us-gaap:AssetImpairmentCharges
us-gaap:ConsolidationItems
us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:StatementEquityComponents
us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet
us-gaap:StatementEquityComponents

us-gaap:CostsAndExpensesRelatedParty
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
us-gaap:DisposalGroupClassification
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
us-gaap:DisposalGroupClassification
us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EffectOfLIFOInventoryLiquidationOnIncome

us-gaap:EquityMethodInvestmentDividendsOrDistributions
us-gaap:IncomeStatementLocation
us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:GainLossOnDispositionOfAssets
us-gaap:DisposalGroupClassification

us-gaap:GoodwillImpairmentLoss
us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:GoodwillTransfers
us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:ImpairmentOfLongLivedAssetsHeldForUse
us-gaap:IncomeStatementLocation
us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
us-gaap:DisposalGroupClassification

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate

us-gaap:IncomeTaxReconciliationMinorityInterestIncomeExpense

us-gaap:IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:InterestCostsCapitalizedAdjustment

us-gaap:InterestExpenseOther
us-gaap:ConsolidationItems
us-gaap:InterestPaidCapitalized

us-gaap:InventoryLIFOReserveEffectOnIncomeNet

us-gaap:InventoryLIFOReservePeriodCharge
us-gaap:ConsolidationItems

us-gaap:InvestmentIncomeInterest

us-gaap:LongTermPurchaseCommitmentAmount

us-gaap:LossContingencyDamagesPaidValue

us-gaap:LossContingencyDamagesSoughtValue

us-gaap:NetCashProvidedByUsedInDiscontinuedOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetIncomeLossAttributableToNonredeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents
us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingIncome
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapitalAccountRedemptions
us-gaap:ConsolidatedEntities
us-gaap:PartnersCapitalAccountUnitsRedeemed

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve

us-gaap:PaymentsOfDebtIssuanceCosts
us-gaap:ConsolidationItems
us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToFundLongtermLoansToRelatedParties

us-gaap:PaymentsToMinorityShareholders

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:ProceedsFromLongTermLinesOfCredit
us-gaap:DebtInstrument

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets

us-gaap:RepaymentsOfCommercialPaper
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:RepaymentsOfDebt
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:RepaymentsOfLongTermLinesOfCredit
us-gaap:DebtInstrument

us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated

us-gaap:RestructuringCharges
us-gaap:ConsolidatedEntities, us-gaap:RestructuringCostAndReserve
us-gaap:ConsolidationItems
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveAccrualAdjustment1
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringReserveSettledWithoutCash2

us-gaap:RevenueFromRelatedParties
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationForfeited
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType
us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:TaxesExcludingIncomeAndExciseTaxes
us-gaap:DisposalGroupClassification
us-gaap:StatementEquityComponents
us-gaap:TemporaryEquityOtherChanges
us-gaap:ConsolidatedEntities
us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:ShareRepurchaseProgram
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

mpc:DeferredTaxAssetsDebtFinancing

mpc:DeferredTaxAssetsFinanceLeaseObligations

mpc:DeferredTaxAssetsOperatingLeaseObligations

mpc:EnergyRelatedInventoryRefinedProducts

mpc:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquityPortionRelatedToGoodwillAndOtherAssetsNotAmortized

mpc:InventorybeforeValuationReserve

mpc:MatchingBuySellReceivables

mpc:Numberofbrandedoutlets

mpc:Numberofdirectdealerlocations

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligationCurrent

us-gaap:AssetRetirementObligationsNoncurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:ConsolidatedEntities
us-gaap:CommercialPaper

us-gaap:CrudeOilAndNaturalGasLiquids

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

us-gaap:DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:DebtWeightedAverageInterestRate
us-gaap:DebtInstrument

us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeAverageForwardPrice
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeCollateralObligationToReturnCash
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeForwardPrice

us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset
us-gaap:Energy, us-gaap:DerivativeInstrumentRisk, us-gaap:Position, us-gaap:TransactionType
us-gaap:DerivativeNonmonetaryNotionalAmount
us-gaap:Energy, us-gaap:Position, us-gaap:TransactionType
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration

us-gaap:EmployeeRelatedLiabilitiesCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:Ownership, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestments
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities, us-gaap:StatementBusinessSegments
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FinanceLeaseLiability
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:LongtermDebtType

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

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FinancialSupportToNonconsolidatedLegalEntity, us-gaap:GuaranteeObligationsByNature
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:IncomeTaxesReceivable

us-gaap:InvestmentsAndCash
us-gaap:BalanceSheetLocation
us-gaap:DebtInstrument
us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:LineOfCredit
us-gaap:DebtInstrument
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:DebtInstrument
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:DebtInstrument

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
dei:LegalEntity, us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
dei:LegalEntity, us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
us-gaap:ConsolidatedEntities
us-gaap:NotesPayable

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivable

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableCurrent

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInFourYears

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears

us-gaap:OperatingLeasesFutureMinimumPaymentsReceivableThereafter
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherInventorySupplies
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:PercentageOfLIFOInventory

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:RecordedThirdPartyEnvironmentalRecoveriesReceivable

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount
us-gaap:StatementEquityComponents

us-gaap:RestrictedCashCurrent

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit

us-gaap:StockRepurchaseProgramAuthorizedAmount1
us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
us-gaap:ConsolidatedEntities

us-gaap:TreasuryStockShares
us-gaap:StatementEquityComponents

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
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
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Debt Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Declared
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ███████████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁10.010.010.010.010.010.010.010.010.010.010.07.07.07.07.07.07.07.07.07.07.07.07.07.07.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.0NANANANANA
us-gaap:CommonStockSharesIssued ███████████▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁983.0981.0980.0980.0979.0979.0978.0978.0978.0976.0975.0735.0735.0734.0734.0733.0732.0731.0731.0731.0730.0730.0729.0729.0728.0364.0363.0363.0363.0363.0362.0362.0362.0361.0361.0359.0358.0358.0357.0357.0356.0NANANANANA
us-gaap:CommonStockSharesAuthorized ▄▄▄▄2000.02000.02000.02000.0NANANANANANA2000.01000.0NANANANANANANANANANANANANANANANANANANA1000.01000.01000.01000.01000.01000.0NA1000.0NANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁654.0651.0NA650.0653.0648.0NA660.0666.0673.0NA456.0464.0480.0NA508.0517.0530.0NA530.0531.0531.0NA538.0544.0275.0NA284.0289.0295.0NA311.0324.0333.0NA340.0341.0350.0NA357.0358.0358.0NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█650.0651.0NA650.0650.0648.0NA656.0662.0673.0NA451.0459.0476.0NA504.0513.0525.0NA527.0528.0529.0NA535.0541.0273.0NA282.0287.0293.0NA309.0322.0331.0NA338.0340.0348.0NA356.0356.0356.0NANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:StockCompensationPlan▁█3.010.0NA12.09.010.0NA4.04.07.0NA0.01.00.0NA1.00.02.0NA3.04.03.0NA1.01.0NANA0.0NANANA1.0NANANA2.05.0NANA4.04.0NANANANANA
us-gaap:EarningsPerShareBasic █▅▅▄▅▁▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▄13.09-0.370.4499999999999993-1.360.01-14.250.681.671.67-0.011.381.632.30.084.131.790.940.060.430.281.510.0030.351.771.523.262.882.382.970.682.090.541.842.192.263.612.391.71-0.213.182.251.490.640.781.14-0.81
us-gaap:EarningsPerShareDiluted █▅▅▄▅▁▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▄13.0-0.370.4499999999999993-1.360.01-14.250.681.661.66-0.011.351.622.270.084.091.770.930.060.430.271.510.0030.351.761.513.242.862.362.950.672.070.541.832.172.243.592.381.7-0.213.162.241.480.640.771.13-0.81
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare █▇▇▇▇▁███▇4.6000000000000004e-07-7.3e-07-6e-08-1.9299999999999997e-06-2.8e-07-1.474e-054.0000000000000003e-071.28e-061.28e-06-1.7000000000000001e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare █▇▇▇▇▁███▇4.5000000000000003e-07-7.3e-07-6e-08-1.9299999999999997e-06-2.8e-07-1.474e-054.0000000000000003e-071.2700000000000001e-061.2700000000000001e-06-1.7000000000000001e-07NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▅▃▁▁▁▅▇▇█▆▇▄▃▂30893.023938.019188.018663.018028.030076.037010.037380.040249.033930.038275.026707.025952.021877.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,mpc:Midstream██▇▇▆▇█▇▇▇▇▃▂▁2309.02249.02157.02147.01974.02160.02258.02164.02149.02189.02175.01629.01512.01344.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,mpc:RefiningAndMarketing█▅▃▃▁▅▇▇█▆▇▄▄▃28584.021689.017031.016516.011275.021145.026688.026537.029154.024363.027783.019682.019173.015961.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▇▇▇▆▇▁▇██▇███▇██▇▇▇▇█▇▇██████▇▇▇▇████▇▇██▇965.0217.0390.0-1057.0981.0-11817.0841.02024.02042.0669.02017.01403.01711.0440.01119.01576.0982.0292.0553.0435.01315.075.0338.01549.01335.01470.01259.01062.01369.0361.01008.0301.0960.01156.01189.01819.01482.01035.0-71.01852.01394.0886.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax █▅▅▄▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▅▅▅▅▅▅8683.0-241.0107.0-884.0-1.0-9240.0335.01044.01096.0-14.0975.0802.01055.035.02024.0900.0484.027.0320.0139.0798.01.0181.0945.0830.0891.0713.0662.0842.0198.0627.0217.0721.0807.0780.01232.01179.0613.0-353.01128.0828.0541.073.0270.0481.0NA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest █▅▅▅▅▁▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8973.065.0396.0-607.0266.0-10224.0154.01316.01357.0252.01219.01006.01235.0233.02133.01001.0575.098.0382.0213.0780.0-78.0162.0955.0843.0903.0720.0669.0851.0206.0632.0222.0727.0812.0784.01232.01179.0613.0NANANANANANANANA
us-gaap:CostOfGoodsAndServicesSold ▇▄▃▂▁▅▇▇█▆▇▄▄▃▃▂▂27177.021084.017216.016673.013777.022821.027301.027300.029682.025756.028112.020457.019517.017370.018855.016617.016101.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▆▄▃▃▁█▆▆▇▆▆▄▃▃▃▃▂▂▂▂▂▁▂▂▃▂▄▅▅▄▄▅▅▄▃▃▃▃▃▃▃▂▂▂▂28862.022665.017797.018605.014217.035897.030467.029178.031646.027946.030524.021729.020734.018544.020117.017810.017372.016101.016731.016025.015475.012755.015341.017209.019246.015770.021084.024419.025564.022984.023924.025973.024743.022189.019522.019354.018950.019319.019599.018894.019469.017052.017110.015485.015189.0NA
us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity █████▁▅█290.0306.0289.0277.0267.0-984.0-181.0272.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▇▇▆▇▁▇██▇███▇██▇▇▇▇█▇▇██████▇█▇██████▇██▇▇▇▇593.0-136.057.0-1416.0636.0-12155.0539.01707.01720.0363.01632.01163.01516.0257.0959.01419.0824.0142.0417.0294.01178.0-67.0235.01479.01271.01389.01187.01012.01321.0315.0969.0254.0915.01108.01144.01870.01290.0934.0-180.01744.01333.0822.0361.0439.0640.0NA
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest █▇▇▇▇▁▇██▇588.0-170.0250.0-980.084.0-10536.077.01113.01109.0150.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▆▆▆▅▇▁▇▇▇▇▇▇▇▆▃▇▇▆▇▆▇▆▆█▇█▇▇▇▇▇▆▇▇▇██▇▆██▇▇▇▇5.034.0-193.0-436.0360.0-1937.0277.0340.0353.0104.0437.0222.0281.022.0-1166.0415.0250.041.0128.075.0395.011.067.0521.0432.0486.0382.0333.0457.0108.0338.081.0316.0378.0385.0646.0476.0338.0-105.0611.0531.0293.0131.0162.0235.0NA
us-gaap:IncomeTaxesPaidNet ▄▂▂▁▂▂▃▂▄▂▄▃▂▂▆▃▃▂▃▃▂▁▄▄█▃▅▇▄▂▂▄▇▂▅▅▄▂▆▂318.01.0-49.0-136.015.0-9.0115.014.0320.042.0271.0113.034.06.0521.0185.0194.04.0112.097.059.0-128.0319.0247.0879.0160.0393.0670.0294.05.072.0308.0724.0-5.0435.0392.0365.019.0563.050.0NANA3.01.0NANA
us-gaap:InterestAndDebtExpense █▇▇▇▇▇▆▇▇▆█▅▄▄▃▃▃▃▃▃▃▃▂▁▁▂▂▁▁▁372.0353.0333.0359.0345.0338.0302.0317.0322.0306.0385.0240.0195.0183.0160.0157.0158.0150.0136.0141.0137.0142.0103.070.064.081.072.050.048.046.0NANA45.048.0NANA17.022.0NANANANANANANANA
us-gaap:InterestExpenseDebt ▇▇█████▇▇▇▇▅▅▅▄▄▄▃▃▃▃▃▂▂▁▂▂▁▁▁▁▁▁▁▁▁337.0351.0360.0376.0373.0357.0354.0352.0350.0340.0351.0233.0229.0213.0180.0172.0173.0163.0147.0153.0149.0153.099.077.069.080.075.056.049.049.048.050.049.048.049.049.0NA46.046.045.0NA31.05.05.0NANA
us-gaap:InterestPaidNet ▇▇▇▇▇▇▇▇▇▆█▆▃▅▃▅▃▄▃▄▃▄▂▄▂▄▂▃▂▃▁▃▂▃▂▂▁▂▁313.0336.0334.0300.0298.0303.0303.0292.0310.0269.0367.0241.067.0212.079.0215.074.0157.078.0158.082.0160.010.0132.02.0128.04.080.02.080.0-5.080.03.083.0-2.053.0-32.048.0-30.0NANANANANANANA
us-gaap:NetIncomeLoss █▅▅▄▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8512.0-242.0285.0-886.09.0-9234.0443.01095.01106.0-7.0951.0737.01055.037.02016.0903.0483.030.0227.0145.0801.01.0187.0948.0826.0891.0798.0672.0855.0199.0626.0168.0593.0725.0755.01224.0814.0596.0-75.01133.0802.0529.0230.0277.0405.0-289.0
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▅▅▄▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8512.0-242.0284.0-886.09.0-9234.0443.01095.01106.0-7.0951.0737.01054.037.02015.0903.0483.030.0227.0145.0800.01.0186.0947.0825.0890.0797.0671.0854.0199.0624.0168.0592.0724.0754.01222.0812.0NA-75.01131.0802.0NANANANANA
us-gaap:OperatingIncomeLoss ▇▇▇▆▇▁▇██▇███▇██▇▇▇▇█▇▇██████▇▇▇▇████▇▇██▇▇▇▇965.0217.0390.0-1057.0981.0-11817.0841.02024.02042.0669.02017.01403.01711.0440.01119.01576.0982.0292.0553.0435.01315.075.0338.01549.01335.01470.01259.01062.01369.0361.01008.0301.0960.01156.01189.01819.01482.01035.0-71.01852.01394.0886.0420.0496.0721.0NA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▄▂▄▄▄▃▃▄▄▄▅▄▄▄▄▄▄▅▄▄▄▄▄▄▄▃▄▄▄▄▅▅▅▄▄█▄▁▄▄171.01.0-178.02.0-10.0-6.0-108.0-51.0-10.0-7.024.065.00.0-2.08.0-3.01.0-3.093.0-6.0-3.00.0-6.0-3.04.00.0-85.0-10.0-13.0-1.01.049.0128.082.025.08.0365.017.0-278.0-5.026.0NANANANANA
us-gaap:ProfitLoss █▅▅▅▅▁▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8802.064.0574.0-609.0276.0-10218.0262.01367.01367.0259.01195.0941.01235.0235.02125.01004.0574.0101.0289.0219.0783.0-78.0168.0958.0839.0903.0805.0679.0864.0207.0631.0173.0599.0730.0759.01224.0814.0596.0-75.01133.0802.0529.0NANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇▄▃▃▂▅▆▇█▆█▄▄▃▄▃▃▂▂▂▂▁▂▃▄▂▄▅▆▅▅▆▅▅▄▄▄▄▃▄▄▃▃▂▂▁29615.022711.017972.017408.015024.025215.028008.031043.033547.028081.032333.022787.022118.018694.021055.019210.018180.016288.017155.016618.016811.012755.015607.018716.020537.017191.022250.025438.026844.023285.024897.026256.025677.023330.020686.021048.020242.020265.019420.020616.020760.017842.017433.015897.015795.013362.0
us-gaap:Revenues ▇▄▃▃▂▅▇▇█▆█▄▄▃▄▃▃▂▂▂▂▁▂▃▄▂▄▅▆▅▅▆▅▅▄▄▄▄▃▄▄▃▃▂▂▁29615.022711.017972.017408.015024.025215.031092.031043.033547.028267.032333.022988.022317.018866.021055.019210.018180.016288.017155.016618.016811.012755.015607.018716.020537.017191.022250.025438.026844.023285.024897.026256.025677.023330.020686.021048.020242.020265.019420.020616.020760.017842.017433.015897.015795.013362.0
us-gaap:SellingGeneralAndAdministrativeExpense ▄▄▄▄▅▆▅▆▆▆█▃▃▂▃▂▃▂▂▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▁▂▂▁▂▂▂▁▁▁▁625.0575.0630.0673.0746.0821.0790.0833.0904.0881.01147.0445.0424.0402.0457.0412.0485.0389.0406.0420.0401.0378.0433.0392.0393.0358.0371.0342.0316.0346.0336.0305.0358.0249.0279.0305.0376.0263.0302.0299.0288.0217.0260.0226.0228.0NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets █▇▇▇▇▇████▇▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▂▂▁▁▁▁▁▁▁94300.086651.085158.084020.084593.086317.098556.098139.096896.096436.092940.053031.051736.050364.049047.046806.045447.045821.044413.043293.044133.041758.043115.030161.030653.030182.030460.031705.029376.029159.028385.029003.029695.030773.027223.026583.024681.025306.025745.025225.023964.0NA23232.0NANANA
us-gaap:Liabilities ███▇▇▇█▇▇▇▆▄▄▄▃▃▃▃▂▂▂▂▂▁▂▂▂▂▂▂▁▂▂▂▁▁▁▁▁▁▁57607.057172.054938.053506.052776.054121.055449.054515.052830.052574.047887.032997.031915.030501.027219.026004.024883.025024.023210.022336.023205.022264.023440.017236.018363.018202.019070.020439.018339.018401.017053.017739.017498.018361.015118.015116.014355.016090.016240.015176.014987.0NA14988.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▇▇████▇▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▂▂▁▁▁▁▁▁▁94300.086651.085158.084020.084593.086317.098556.098139.096896.096436.092940.053031.051736.050364.049047.046806.045447.045821.044413.043293.044133.041758.043115.030161.030653.030182.030460.031705.029376.029159.028385.029003.029695.030773.027223.026583.024681.025306.025745.025225.023964.0NA23232.0NANANA
us-gaap:StockholdersEquity ▆▄▅▅▅▅█████▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁28921.021592.022199.022453.023741.024088.033694.033738.034207.033951.035175.015166.014958.014988.014033.012930.012636.013070.013557.013395.013490.012902.013237.012277.011643.011338.010751.010849.010620.010344.010920.010851.011784.012000.011694.011467.010326.09216.09505.010049.08977.09036.08244.08485.08693.0NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent █▆▆▅▃▃▄▄▃▃▃▃▃▂▂▂▂▂▂▁▂▁▁▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂38592.030361.028287.026200.014643.015693.020170.019139.018396.018151.018023.015873.015548.014525.013401.011631.010443.011042.010401.09545.010304.08097.09471.010861.011431.011053.011339.012887.013596.013448.012737.013531.014252.015297.013029.012516.010706.011580.012001.011669.010513.0NA10056.0NANANA
us-gaap:Cash 4080.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▁▁▁▂▂▂▂▂▁▂▄▄▄▃▂▂▂▁▁▂▁▂▂▂▂▂▂▂▂▂▂▃▄▄▃▂▂▃▃▂▁▁▁▁11839.0624.0415.0618.01091.01690.01527.01525.01247.0877.01687.04992.04999.04653.03011.02088.01450.02167.0887.0709.01754.0308.01127.02044.01881.02078.01494.01854.02125.02166.02292.02018.03069.04737.04860.03387.01895.02205.03079.02957.01622.0219.0118.0117.0154.0NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▁▁▁▁▂▂▂▂▁▂▄▄▄▃▂▂▂▁11839.0625.0416.0620.01093.01694.01529.01528.01249.0908.01725.04995.05004.04657.03015.02095.01454.02170.0892.0NANANA1136.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▆▄▃▃▄▆▆▆▅▄▄▃▃▃▂▂▂▂▂▂▁▁▂▂▂▂▄▄▄▄▄▄▄▃▃▃▄▄▃▃9771.07468.05760.04911.04361.05583.07872.07461.07603.06893.05853.05408.04919.04613.04695.03900.03259.03284.03617.03136.03199.02602.02927.03124.03876.03364.04058.05271.05725.05420.05559.05593.06163.05509.04610.05101.04708.05867.05459.04913.05041.0NA4393.0NANANA
us-gaap:InventoryNet ▇▆▆▅▆▅█▇▇██▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▃▃▁▂▂▁▁▁▁8879.08407.07999.07403.08086.07445.010243.09696.09088.09833.09837.05339.05485.05111.05550.05493.05548.05392.05656.05524.05209.04983.05225.05556.05540.05437.05642.05608.05621.05689.04689.05714.04830.04879.03449.03889.04030.03352.03320.03615.03679.0NA3071.0NANANA
us-gaap:InventoryLIFOReserve NANANA1185.01740.03220.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent ███▇▄▃▂▂▂▂▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁2685.02695.02724.02199.01105.0975.0528.0457.0458.0548.0646.0134.0145.0148.0145.0150.0186.0199.0241.0176.0142.0204.0192.0137.0134.0174.0145.0154.0125.0173.0197.0206.0190.0172.0110.0139.073.0156.0141.0183.0170.0NA65.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA17697.0NANANA16362.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ▇▇▇▇█████▇▇▅▅▄▄▄▄▄▄▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁59794.059539.059339.059324.066004.065470.064623.063290.062902.061882.061213.043276.041985.041176.040538.039718.039002.038406.038006.037526.036877.036215.035604.026361.026007.025621.025302.024712.022277.021987.021793.021375.021106.020890.019409.019051.018689.018309.018073.017660.017366.0NA16624.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇█▇▇▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁21798.021048.020304.019567.020979.020137.019008.018256.017567.016791.016155.015559.015054.014558.014095.013682.013216.012737.012241.011829.011365.010896.010440.010067.09724.09380.09041.08713.08427.08133.07872.07580.07307.07040.06766.06519.06275.06063.05845.05634.05431.0NA4900.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ▆▇▇▇███████▄▄▄▄▄▄▄▄▄▄▄▄▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁37996.038491.039035.039757.045025.045333.045615.045034.045335.045091.045058.027717.026931.026618.026443.026036.025786.025669.025765.025697.025512.025319.025164.016294.016283.016241.016261.015999.013850.013854.013921.013795.013799.013850.012643.012532.012414.012246.012228.012026.011935.0NA11724.0NANANA
us-gaap:Goodwill ▄▄▄▄▅▅█████▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁8256.08256.08256.08256.012710.012710.020040.021277.020277.020229.020184.03713.03586.03586.03586.03586.03586.03586.03587.03648.03648.03649.04019.01565.01566.01566.01566.01537.0937.0938.0938.0938.0938.0930.0930.0930.0925.0842.0842.0842.0842.0NA837.0NANANA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill NANA71.0NANANA94.0NANANA94.0NANANA95.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill NANA2360.0NANANA2928.0NANANA3314.0NANANA726.0NANANA725.0NANANA719.0NANANA287.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationshipsNANA2240.0NANANA2663.0NANANA2923.0NANANA515.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:OtherIntangibleAssetsNANA9.0NANANA110.0NANANA157.0NANANA49.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:RoyaltyAgreementsNANA46.0NANANA55.0NANANA59.0NANANA66.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:TrademarksAndTradeNamesNANA65.0NANANA100.0NANANA175.0NANANA1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▅▅▅▅▇█▇███▁1500.01514.01521.01640.02454.02562.02459.02522.02588.02680.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▅▅▅▇█▆▆▇▇▇▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁2532.02594.02637.02705.04021.04363.03374.03442.03571.03727.03777.0818.0833.0818.0830.0784.0809.0820.0833.0849.0876.0886.0839.0368.0379.0420.0429.0420.0303.0317.0326.0322.0378.0369.0300.0305.0334.0336.0372.0367.0351.0NA303.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent █▆▄▃▃▄█▇▇▇▆▄▄▄▅▃▂▂▂▂▂▁▂▂▃▂▃▅▅▆▅▅▅▅▃▃▃▄▅▄▄12170.09953.07803.06701.06110.08106.011623.011380.010905.010568.09366.08016.08113.07066.08297.06159.05307.05343.05593.05055.05214.04083.04743.04993.06225.05387.06661.08726.08934.09313.08234.08961.08601.08872.06785.06951.06155.07803.08169.06974.07313.0NA6453.0NANANA
us-gaap:AccruedIncomeTaxesCurrent █▂▂▂▃▂▂▂▂▃▃▂▂▂▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂5219.01034.01105.01023.01272.01098.01186.01015.01223.01529.01446.0657.0713.0639.0169.0361.0177.0135.0153.0163.0336.0145.0184.0845.0517.0933.0647.0586.0909.0614.0513.0609.0612.0965.0598.0709.0604.0582.0558.0983.0NANA524.0NANANA
us-gaap:DebtCurrent ▁▅█▇▅▅▃▂▂▂▂▁▁▁▂▁▁▁▁▁▁▁▁▃▃▃▁▁▁▁▁▁▁▁▁▁▁70.01786.02854.02500.01715.01710.0711.0557.0554.0550.0544.026.026.026.0624.029.029.028.028.028.027.0215.029.0780.0780.0776.027.026.026.024.023.023.023.022.019.020.019.0NA15.0NANANANANANANA
us-gaap:LiabilitiesCurrent █▆▆▅▄▅▆▆▆▆▅▃▃▂▃▂▂▂▂▁▂▁▁▂▃▂▃▃▄▄▃▃▃▄▂▂▂▃▃▃▂19512.016085.015663.014246.011504.013569.016147.015339.014890.015147.013216.09634.09715.08372.010478.07647.06758.06866.07146.06340.06782.05595.06345.07686.08725.08346.08579.010372.011055.010846.09824.010401.010241.010728.08203.08308.07568.09201.09591.08612.08549.0NA8620.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▆▆▇▇██████▁473.0475.0497.0531.0625.0630.0604.0586.0615.0613.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▆▇▇██▇▇▇█▆▄▄▃▃▃▃▃▃▃▃▃▄▃▃▃▃▃▄▂▃▂▃▂▁▁▂▂▂▁▂929.0744.0822.0900.0967.0918.0897.0862.0815.0929.0708.0442.0431.0304.0296.0268.0376.0350.0378.0326.0359.0391.0426.0309.0365.0321.0354.0324.0519.0265.0275.0190.0315.0152.0112.077.0204.0201.0180.0125.0247.0NA168.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA4736.0NANANA2769.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DebtAndCapitalLeaseObligations ▇█████▇▇▇▇▇▅▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁28761.032935.032044.032345.032605.032040.029282.029294.028855.028571.027980.018968.017801.017807.013418.013269.013106.013112.011069.011077.011583.012104.012475.06753.06760.06766.06657.06283.03639.03659.03395.03401.03406.03411.03355.03342.03327.0NA3299.0NANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations ▇█▇███▇▇▇▇▇▅▅▅▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁28250.030694.028730.029377.030451.029899.028127.028282.027853.027565.026980.018423.017241.017232.012322.012753.012577.012570.010544.010538.011032.011351.011896.05912.05918.05967.06610.06238.03612.03635.03373.03380.03387.03394.03342.03329.03316.0NA3292.0NANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▇██▇▇▇██▆▅▅▂▂▂▁▃▃▃▃▃▃5704.06215.06203.05703.05914.05772.06392.06180.05235.05011.04864.03206.03144.03120.02654.03935.03923.03888.03861.03682.03520.0NA3285.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▇▇█▆▆▆▆▅▅▅▅▂▃▃▃▂▂▃▂▃▃▃▃▃▃▃▃▂▂▁▁▂▂▃▄▄▄▆▆▅▅1850.01958.02121.01816.01772.01703.01643.01487.01610.01567.01509.01045.01156.01126.01099.01029.0998.01085.01055.01174.01242.01216.01179.01139.01143.01123.01099.0937.0906.0855.0771.0895.0929.01214.01266.01270.01348.01809.01783.01522.01489.0NA1493.0NANANA
us-gaap:MinorityInterest ▆▆▆▆▇▇█████▄▄▄▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁▁6804.06919.07053.07093.07108.07140.08445.08918.08854.08907.08874.03865.03860.03875.06795.06872.06928.06727.06646.06562.06445.06592.06438.0648.0647.0642.0639.0417.0417.0414.0412.0413.0413.0412.0411.0NANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▄▄▄▅▇▇▇▇██▁1020.01007.01014.01116.01850.01949.01875.01962.02068.02153.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA373.0NANANA590.0665.0650.0629.0619.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA243.0NANANA402.0572.0562.0545.0553.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA170.0NANANA287.0388.0383.0370.0389.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA111.0NANANA222.0277.0273.0262.0295.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA224.0NANANA634.0855.0837.0832.0858.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆▄▅▅▅▅█████▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁28921.021592.022199.022453.023741.024088.033694.033738.034207.033951.035175.015166.014958.014988.014033.012930.012636.013070.013557.013395.013490.012902.013237.012277.011643.011338.010751.010849.010620.010344.010920.010851.011784.012000.011694.011467.010326.09216.09505.010049.08977.09036.08244.08485.08693.0NA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▅▅▅▅▅█████▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▁▁▁▁▁▁▂▂▂▁▁▁▁35725.028511.029252.029546.030849.031228.042139.042656.043061.042858.044049.019031.018818.018863.020828.019802.019564.019797.020203.019957.019935.019494.019675.012925.012290.011980.011390.011266.011037.010758.011332.011264.012197.012412.012105.011467.010326.09216.09505.0NANANA8244.0NANANA
us-gaap:CommonStockValue ███████████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁10.010.010.010.010.010.010.010.010.010.010.07.07.07.07.07.07.07.07.07.07.07.07.07.07.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.0NANANANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███████████▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁33238.033222.033208.033183.033208.033169.033157.033125.033785.033764.033729.013703.013688.013669.011262.011236.011185.011159.011060.011005.010996.010982.011071.09929.09912.09890.09844.09833.09822.09803.09768.09748.09737.09676.09527.09563.09426.09410.09482.0NANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▆▂▃▃▃▄███▇▇▇▇▆▇▆▅▅▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▁▁▁12160.04029.04650.04744.06008.06380.015990.015891.015146.014391.014755.014119.013589.012745.012864.011044.010344.010046.010206.010169.010215.09584.09752.09736.08959.08269.07515.06856.06325.05591.05507.05007.04969.04489.03880.03241.02136.01407.0898.01062.0NANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅▄▆▆▆▆▇████▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▇▇▇▇▇▇▆▅▅▅▁▁▄▄-340.0-511.0-512.0-334.0-336.0-326.0-320.0-212.0-161.0-151.0-144.0-168.0-233.0-233.0-231.0-239.0-236.0-237.0-234.0-327.0-321.0-318.0-318.0-312.0-309.0-313.0-313.0-228.0-218.0-205.0-204.0-205.0-254.0-382.0-464.0-489.0-497.0-862.0-879.0-601.0-596.0NA-623.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType,us-gaap:StatementEquityComponents us-gaap:OtherPostretirementBenefitPlansDefinedBenefit,us-gaap:AccumulatedDefinedBenefitPlansAdjustment▁▁▁▄▄▄▄▇▇▇▇▆▆▆▆████▅▆-176.0-178.0-181.0-116.0-117.0-117.0-116.0-23.0-23.0-23.0-23.0-51.0-50.0-49.0-48.0-9.0-8.0-8.0-7.0-70.0-69.0NA-70.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType,us-gaap:StatementEquityComponents us-gaap:PensionPlansDefinedBenefit,us-gaap:AccumulatedDefinedBenefitPlansAdjustment▆▁▁▅▅▅▅▆▇▇██▆▆▆▄▄▄▄▃▄-167.0-340.0-338.0-222.0-225.0-216.0-212.0-197.0-147.0-138.0-132.0-119.0-186.0-189.0-190.0-235.0-233.0-235.0-233.0-263.0-258.0NA-255.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents mpc:AccumulatedGainLossNetWorkersCompensation▁▇▇▂▅▇█▇█2.06.06.03.05.06.07.06.07.0NA9.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentNANA6.0NANANA7.0NANANA9.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▁▁▁▁▁▁▁▃▃▃▃▃▃▃███1.01.01.01.01.01.01.02.02.02.02.02.02.02.04.04.04.0NA4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue ███████▇▇▇▇▆▆▆▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▁▁16147.015158.015157.015150.015149.015145.015143.015076.014573.014063.013175.012495.012093.011200.09869.09118.08664.07905.07482.07459.07407.07353.07275.07083.06926.06512.06299.05616.05313.04849.04155.03703.02672.01787.01253.0NANANANANANANANANANANA
us-gaap:MinorityInterest ▆▆▆▆▇▇█████▄▄▄▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁▁6804.06919.07053.07093.07108.07140.08445.08918.08854.08907.08874.03865.03860.03875.06795.06872.06928.06727.06646.06562.06445.06592.06438.0648.0647.0642.0639.0417.0417.0414.0412.0413.0413.0412.0411.0NANANANANANANANANANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▁█272.0300.0NA301.0279.0300.0NA289.0295.0305.0285.0186.0182.0179.0173.0165.0149.0142.0137.0131.0128.0121.011.011.09.09.07.08.06.06.06.06.05.04.0NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▃▅▅▄▁▇██▆█▅▇▂█▆▄▅▄▃▇▃▄▅▄▅▃▅▄▄▅▃▂▇▇▆▃▃▄▆▃▄▆▃1380.0454.01328.01321.0538.0-768.02409.02787.02622.01623.02727.01182.02386.0-137.02746.01901.0849.01113.0991.0405.02263.0327.0808.01069.0994.01190.0388.01078.0878.0766.01355.0407.0-436.02079.02043.01833.0269.0347.0638.01719.037.0915.01927.0-5.0NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities █▃▂▂▂▂▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▁▃▃▂▃▃▂▂▃▂▃▃▃▃▂▂▃15670.0-267.0-433.0-747.0-989.0-1088.0-1686.0-1695.0-1360.0-1520.0-4775.0-1377.0-740.0-778.0-779.0-603.0-656.0-1356.0-724.0-721.0-769.0-727.0-2013.0-572.0-468.0-388.0-519.0-3343.0-321.0-360.0-505.0-333.0-236.0-1682.0-419.0-235.0-487.0-311.0-340.0-309.02428.0-484.0-1683.0-290.0NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▆▅▅▆█▅▅▅▅▅▆▅█▅▅▅▇▆▅▆▆▆▆▅▆▆█▅▅▅▅▅▅▆▆▆▅▆▆▅▆▆▆-5970.016.0-1057.0-949.0-150.02021.0-722.0-813.0-921.0-920.0-1222.0186.0-1299.02557.0-1044.0-660.0-910.01523.0-89.0-729.0-48.0-419.0288.0-334.0-723.0-218.0-229.01994.0-598.0-532.0-576.0-1125.0-996.0-520.0-151.0-106.0-92.0-910.0-176.0-75.0-1062.0-330.0-243.0258.0NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AmortizationOfFinancingCosts ▇█▇▇▆▅▅▄▄▁▇▆▆▇▇▆▆▆▅▇▅▆▃▂19.022.020.019.016.014.014.010.09.00.019.016.017.018.018.016.015.015.014.018.014.015.07.02.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxExpenseBenefit ▆▆█▅▇▄▇█▇▆▆▆▆▆▁▆▆▆▆▇▇▆▇▆▆▆▆▆▆▆▆▆▆▆▆▆▇▇▆▆▆▆▆▇-73.024.0522.0-298.0160.0-625.0251.0412.0233.0127.05.040.021.0-19.0-1290.034.028.0-5.059.0160.0177.0-2.0140.06.0-10.0-2.0-116.0-35.0-77.0-14.01.0-12.028.06.067.097.0136.0192.0-6.095.046.0-12.026.0161.0NANA
us-gaap:DepreciationDepletionAndAmortization ▇▇▇▇███▇▇▇▇▄▄▄▄▄▄▄▄▄▄▄▃▄▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁871.0844.0849.0830.0935.0962.0978.0855.0886.0919.0874.0555.0533.0528.0540.0517.0521.0536.0504.0507.0500.0490.0413.0508.0362.0363.0359.0322.0325.0320.0332.0299.0302.0287.0283.0246.0236.0230.0230.0227.0218.0216.0218.0234.0269.0NA
us-gaap:IncreaseDecreaseInAccountsReceivable █▇▆▆▃▂▅▄▆▆▁▅▅▄▆▆▅▄▅▄▅▄▄▃▅▃▃▄▅▄▅▄▆▆▄▅▃▅▅▄▅▅▅▅2224.01723.0863.0789.0-1218.0-1899.0409.0-135.0713.01037.0-2298.0484.0321.0-96.0797.0640.0-11.0-333.0465.0-67.0601.0-325.0-361.0-752.0512.0-691.0-1218.0-585.0300.0-139.0-34.0-565.0655.0884.0-491.0393.0-1159.0406.0545.0-127.0275.0471.0223.0283.0NANA
us-gaap:IncreaseDecreaseInInventories ▆▆▃▂▂▆▆▆▂▅▂▄▆▃▅▄▅▄▅▆▄▄▅▅▅▄▅▄▄█▁█▄▆▃▄▇▅▄▄█▃▃▆472.0408.0-585.0-748.0-839.0422.0548.0558.0-744.04.0-716.0-149.0374.0-440.057.0-56.0157.0-264.0141.0315.0-160.0-226.06.016.0103.0-205.055.0-192.0-77.01000.0-1025.0875.0-62.0517.0-440.0-142.0665.032.0-294.0-64.0949.0-336.0-531.0369.0NANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▄▂█▅▂▅▅▁▁▄▄▄▄▄1.0-5.017.04.0-6.04.06.0-11.0-10.01.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▃▅▅▄▁▇██▆█▅▇▂█▆▄▅▄▃▇▃▄▅▄▅▃▅▄▄▅▃▂▇▇▆▃▃▄▆▃▄▆▃1380.0454.01328.01321.0538.0-768.02409.02787.02622.01623.02727.01182.02386.0-137.02746.01901.0849.01113.0991.0405.02263.0327.0808.01069.0994.01190.0388.01078.0878.0766.01355.0407.0-436.02079.02043.01833.0269.0347.0638.01719.037.0915.01927.0-5.0NANA
us-gaap:NetIncomeLoss █▅▅▄▅▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8512.0-242.0285.0-886.09.0-9234.0443.01095.01106.0-7.0951.0737.01055.037.02016.0903.0483.030.0227.0145.0801.01.0187.0948.0826.0891.0798.0672.0855.0199.0626.0168.0593.0725.0755.01224.0814.0596.0-75.01133.0802.0529.0230.0277.0405.0-289.0
us-gaap:ProfitLoss █▅▅▅▅▁▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅8802.064.0574.0-609.0276.0-10218.0262.01367.01367.0259.01195.0941.01235.0235.02125.01004.0574.0101.0289.0219.0783.0-78.0168.0958.0839.0903.0805.0679.0864.0207.0631.0173.0599.0730.0759.01224.0814.0596.0-75.01133.0802.0529.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▃▂▂▂▂▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▁▃▃▂▃▃▂▂▃▂▃▃▃▃▂▂▃15670.0-267.0-433.0-747.0-989.0-1088.0-1686.0-1695.0-1360.0-1520.0-4775.0-1377.0-740.0-778.0-779.0-603.0-656.0-1356.0-724.0-721.0-769.0-727.0-2013.0-572.0-468.0-388.0-519.0-3343.0-321.0-360.0-505.0-333.0-236.0-1682.0-419.0-235.0-487.0-311.0-340.0-309.02428.0-484.0-1683.0-290.0NANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▂▂▂▄▅█▇▆▆▇▄▄▄▄▃▃▃▄▄▄▄▄▃▂▂▃▂▂▁▂▂▁▁▂▂▂▂▂▂▁▁▂▁302.0304.0457.0420.0848.01062.01551.01404.01178.01241.01263.0849.0711.0755.0804.0663.0655.0610.0745.0716.0686.0745.0721.0513.0375.0389.0528.0383.0302.0267.0473.0309.0229.0195.0403.0331.0326.0309.0341.0327.0274.0243.0296.0287.0NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▆▅▅▆█▅▅▅▅▅▆▅█▅▅▅▇▆▅▆▆▆▆▅▆▆█▅▅▅▅▅▅▆▆▆▅▆▆▅▆▆▆-5970.016.0-1057.0-949.0-150.02021.0-722.0-813.0-921.0-920.0-1222.0186.0-1299.02557.0-1044.0-660.0-910.01523.0-89.0-729.0-48.0-419.0288.0-334.0-723.0-218.0-229.01994.0-598.0-532.0-576.0-1125.0-996.0-520.0-151.0-106.0-92.0-910.0-176.0-75.0-1062.0-330.0-243.0258.0NANA
us-gaap:PaymentsOfDividendsCommonStock ██████▇▇▇▇▆▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁381.0379.0377.0378.0378.0377.0344.0348.0352.0354.0317.0207.0211.0219.0195.0202.0186.0190.0190.0190.0170.0169.0170.0171.0136.0136.0138.0141.0122.0123.0126.0129.0113.0116.0116.0119.085.087.089.0NANANANANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ShareRepurchaseProgram mpc:ModifiedDutchAuctionTenderNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value10000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value983981980980979979978978978976975735735734734733732731731731730730729729728364363363363363362362362361361359358358357357356
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-06-302012-03-312011-12-31
Value983981980980979979978978978976975735735734734733732731731731730730729729728364363363726363362362362361361358358357
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0200.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2021-06-302021-03-312020-12-312020-09-302018-12-312018-09-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2000200020002000200010001000100010001000100010001000
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value654651650653648660666673456464480508517530530531531538544275284289295311324333340341350357358358
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value650651650650648656662673451459476504513525527528529535541273282287293309322331338340348356356356
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:StockCompensationPlan


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302014-09-302013-09-302012-09-302012-06-302011-09-302011-06-30
Value3.010.0129.010.04.04.07.00.01.00.01.00.02.03.04.03.01.01.00.01.02.05.04.04.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13.09-0.370.45-1.360.01-14.250.681.671.67-0.011.381.632.30.084.131.790.940.060.430.281.510.0030.351.771.523.262.882.382.970.682.090.541.842.192.263.612.391.71-0.213.182.251.490.640.781.14-0.81
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value13.0-0.370.45-1.360.01-14.250.681.661.66-0.011.351.622.270.084.091.770.930.060.430.271.510.0030.351.761.513.242.862.362.950.672.070.541.832.172.243.592.381.7-0.213.162.241.480.640.771.13-0.81
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.46-0.73-0.06-1.93-0.28-14.740.41.281.28-0.17
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.45-0.73-0.06-1.93-0.28-14.740.41.271.27-0.17
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8683-241.0107-884.0-1.0-9240.033510441096-14.09758021055352024900484273201397981.018194583089171366284219862721772180778012321179613-353.0112882854173270481
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.3-1.10.6-5.1-0.0-36.61.23.43.3-0.03.03.54.80.29.64.72.70.21.90.84.70.01.25.04.05.23.22.63.10.92.50.82.83.53.85.95.83.0-1.85.54.03.00.41.73.0

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
Value897365396-607.0266-10224.0154131613572521219100612352332133100157598382213780-78.016295584390372066985120663222272781278412321179613
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 RevenueFromContractWithCustomerExcludingAssessedTax30.30.32.2-3.51.8-40.50.54.24.00.93.84.45.61.210.15.23.20.62.21.34.6-0.61.05.14.15.33.22.63.20.92.50.82.83.53.85.95.83.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2717721084172161667313777228212730127300296822575628112204571951717370188551661716101
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax91.892.895.895.891.790.597.587.988.591.786.989.888.292.989.686.588.6

us-gaap:CostOfGoodsAndServicesSold us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Cost
Period End2021-06-302020-06-30
Value27483524
Percentage of CostOfGoodsAndServicesSold10.125.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.323.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsDisposedOfBySale0.00.0

us-gaap:DiscontinuedOperationsHeldforsale


Cost
Period End2021-03-312020-09-302020-03-312019-09-30
Value4906464149566533
Percentage of CostOfGoodsAndServicesSold23.327.821.723.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.626.719.721.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsHeldforsale0.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value288622266517797186051421735897304672917831646279463052421729207341854420117178101737216101167311602515475127551534117209192461577021084244192556422984239242597324743221891952219354189501931919599188941946917052171101548515189
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax97.599.899.0106.994.6142.4108.894.094.399.594.495.493.799.295.592.795.698.997.596.492.1100.098.391.993.791.794.896.095.298.796.198.996.495.194.492.093.695.3100.991.693.895.698.197.496.2

us-gaap:CostsAndExpenses us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Costs
Period End2021-06-302020-06-30
Value28213741
Percentage of CostsAndExpenses9.826.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.524.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsDisposedOfBySale0.00.0

us-gaap:DiscontinuedOperationsHeldforsale


Costs
Period End2021-03-312020-09-302020-03-312019-09-30
Value5032479752226730
Percentage of CostsAndExpenses22.225.814.523.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.227.620.721.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsHeldforsale0.00.00.00.0

Income Loss From Continuing Operations Attributable To Noncontrolling Entity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value290306289277267-984.0-181.0272
Percentage of IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.31.61.61.8-3.9-0.60.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value593-136.057-1416.0636-12155.05391707172036316321163151625795914198241424172941178-67.02351479127113891187101213213159692549151108114418701290934-180.017441333822361439640
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.0-0.60.3-8.14.2-48.21.95.55.11.35.05.16.91.44.67.44.50.92.41.87.0-0.51.57.96.28.15.34.04.91.43.91.03.64.75.58.96.44.6-0.98.56.44.62.12.84.1

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value588-170.0250-980.084-10536.07711131109150
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.0-0.71.4-5.60.6-41.80.33.63.30.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value5.034-193.0-436.0360-1937.027734035310443722228122-1166.04152504112875395116752143248638233345710833881316378385646476338-105.0611531293131162235
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.1-1.1-2.52.4-7.71.01.11.10.41.41.01.30.1-5.52.21.40.30.70.52.30.10.42.82.12.81.71.31.70.51.40.31.21.61.93.12.41.7-0.53.02.61.60.81.01.5

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value3181.0-49.0-136.015-9.01151432042271113346.05211851944.01129759-128.03192478791603936702945.072308724-5.043539236519563503.01.0
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.10.0-0.3-0.80.1-0.00.40.01.00.10.80.50.20.02.51.01.10.00.70.60.4-1.02.01.34.30.91.82.61.10.00.31.22.8-0.02.11.91.80.12.90.20.00.0

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-312012-06-302012-03-31
Value3723533333593453383023173223063852401951831601571581501361411371421037064817250484645481722
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.61.92.12.31.31.11.01.01.11.21.10.91.00.80.80.90.90.80.80.81.10.70.40.30.50.30.20.20.20.20.20.10.1

us-gaap:InterestAndDebtExpense us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Interest
Period End2021-06-302020-06-30
Value2.04.0
Percentage of InterestAndDebtExpense0.51.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsDisposedOfBySale0.00.0

us-gaap:DiscontinuedOperationsHeldforsale


Interest
Period End2021-03-312020-09-302020-03-312019-09-30
Value4.05.06.05.0
Percentage of InterestAndDebtExpense1.11.41.81.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsHeldforsale0.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value3373513603763733573543523503403512332292131801721731631471531491539977698075564949485049484949464645315.05.0
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.52.02.22.51.41.31.11.01.21.11.01.01.10.90.91.01.00.90.90.91.20.60.40.30.50.30.20.20.20.20.20.20.20.20.20.20.20.20.20.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value313336334300298303303292310269367241672127921574157781588216010.01322.01284.0802.080-5.0803.083-2.053-32.048-30.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.51.91.72.01.21.10.90.91.01.11.10.31.10.41.10.41.00.51.00.51.30.10.70.00.70.00.30.00.3-0.00.30.00.4-0.00.3-0.20.2-0.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8512-242.0285-886.09.0-9234.044310951106-7.09517371055372016903483302271458011.01879488268917986728551996261685937257551224814596-75.01133802529230277405-289.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.7-1.11.6-5.10.1-36.61.63.53.3-0.02.93.24.80.29.64.72.70.21.30.94.80.01.25.14.05.23.62.63.20.92.50.62.33.13.65.84.02.9-0.45.53.93.01.31.72.6-2.2

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value8512-242.0284-886.09.0-9234.044310951106-7.09517371054372015903483302271458001.01869478258907976718541996241685927247541222812-75.01131802
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.7-1.11.6-5.10.1-36.61.63.53.3-0.02.93.24.80.29.64.72.70.21.30.94.80.01.25.14.05.23.62.63.20.92.50.62.33.13.65.84.0-0.45.53.9

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value965217390-1057.0981-11817.08412024204266920171403171144011191576982292553435131575338154913351470125910621369361100830196011561189181914821035-71.018521394886420496721
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.31.02.2-6.16.5-46.93.06.56.12.46.26.27.72.45.38.25.41.83.22.67.80.62.28.36.58.65.74.25.11.64.01.13.75.05.78.67.35.1-0.49.06.75.02.43.14.6

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-180.0-157.0-175.0-197.0-188.0-227.0-237.0-198.0-179.0-191.0-219.0-103.0-91.0-88.0-114.0-86.0-83.0-82.0-76.0-67.0-67.0-67.0-75.0-77.0-76.0-80.0-82.0-76.0-61.0-67.0-81.0-59.0-64.0-67.0
Percentage of OperatingIncomeLoss-18.7-72.4-44.918.6-19.21.9-28.2-9.8-8.8-28.6-10.9-7.3-5.3-20.0-10.2-5.5-8.5-28.1-13.7-15.4-5.1-89.3-22.2-5.0-5.7-5.4-6.5-7.2-4.5-18.6-8.0-19.6-6.7-5.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.7-1.0-1.1-1.3-0.9-0.8-0.6-0.5-0.7-0.7-0.5-0.4-0.5-0.5-0.4-0.5-0.5-0.4-0.4-0.4-0.5-0.5-0.4-0.4-0.5-0.4-0.3-0.2-0.3-0.3-0.2-0.2-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1201374-605.0-609.0-256.08022278224422777442425150618015291224166111333746297731474272413177214121551134711591435492110138310841223128818191482
Percentage of OperatingIncomeLoss124.5172.4-155.157.6-26.1-6.8270.9110.9111.5111.2120.2107.3105.3120.2109.4105.4115.4128.1113.7177.7112.1362.7122.2114.4105.8105.5107.0109.1104.8136.3109.2127.2112.9105.8108.3100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.11.6-3.4-3.5-1.73.28.17.26.82.67.56.68.12.85.88.66.22.33.74.78.82.12.69.56.99.06.14.65.32.14.41.54.25.26.28.67.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments3.91.60.0-3.3-1.42.70.06.05.72.20.05.66.92.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:DisposalGroupClassification

us-gaap:CorporateNonSegment, us-gaap:DiscontinuedOperationsHeldforsale


Operating
Period End2020-09-302019-09-30
Value-7.0-8.0
Percentage of OperatingIncomeLoss0.7-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment us-gaap:DiscontinuedOperationsHeldforsale0.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:DirectDealer, mpc:RefiningAndMarketing


Operating
Period End2020-09-302019-09-30
Value103106
Percentage of OperatingIncomeLoss-9.75.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments mpc:DirectDealer mpc:RefiningAndMarketing0.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9779729749608699058899198789088896796175673433553323092452582011673.09310390
Percentage of OperatingIncomeLoss101.2447.9249.7-90.888.6-7.7105.745.443.0135.744.148.436.1128.930.722.533.8105.844.359.315.3222.70.96.07.76.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.34.35.45.55.83.63.23.02.63.22.73.02.83.01.61.81.81.91.41.61.21.30.00.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments mpc:Midstream42.343.20.044.744.041.90.042.540.941.50.041.740.842.20.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value224-598.0-1579.0-1569.0-1619.0-622.0912883906-334.09236661025-133.07321097562-70.02193061080-62.0207145712061316101697112603629712279031105113916911325
Percentage of OperatingIncomeLoss23.2-275.6-404.9148.4-165.05.3108.443.644.4-49.945.847.559.9-30.265.469.657.2-24.039.670.382.1-82.761.294.190.389.580.791.492.0100.396.375.494.195.695.893.089.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-2.6-8.8-9.0-10.8-2.53.32.82.7-1.22.92.94.6-0.73.55.73.1-0.41.31.86.4-0.51.37.85.97.74.63.84.71.63.90.93.54.75.58.06.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments mpc:RefiningAndMarketing0.8-2.80.0-9.5-14.4-2.90.03.33.1-1.40.03.45.3-0.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Operating
Period End2021-06-302020-06-30
Value11942406
Percentage of OperatingIncomeLoss1237.541.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsDisposedOfBySale0.00.0

us-gaap:DiscontinuedOperationsHeldforsale


Operating
Period End2021-03-312020-09-302020-03-312019-09-30
Value307438338344
Percentage of OperatingIncomeLoss141.5-41.4-2.917.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.42.51.31.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsHeldforsale0.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1711.0-178.02.0-10.0-6.0-108.0-51.0-10.0-7.024650.0-2.08.0-3.01.0-3.093-6.0-3.00.0-6.0-3.04.00.0-85.0-10.0-13.0-1.01.04912882258.036517-278.0-5.026
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.0-1.00.0-0.1-0.0-0.4-0.2-0.0-0.00.10.30.0-0.00.0-0.00.0-0.00.5-0.0-0.00.0-0.0-0.00.00.0-0.4-0.0-0.0-0.00.00.20.50.40.10.01.80.1-1.4-0.00.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value2.03.00.0-1.0-93.00.00.00.028-1.0-1.0-1.0-39.0-1.00.0-1.063-1.0
Percentage of OtherComprehensiveIncomeLossNetOfTax1.2300.0-0.016.786.1-0.0-0.0-0.0116.7-1.50.050.0-487.533.30.033.367.716.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0-0.0-0.30.00.00.00.1-0.0-0.0-0.0-0.2-0.00.0-0.00.4-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OtherPostretirementBenefitPlansDefinedBenefit us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value173-2.0-116.03.0-9.0-4.0-15.0-50.0-9.0-6.0-13.0673.01.045-2.02.0-2.030-5.0
Percentage of OtherComprehensiveIncomeLossNetOfTax101.2-200.065.2150.090.066.713.998.090.085.7-54.2103.10.0-50.0562.566.7200.066.732.383.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.6-0.0-0.60.0-0.1-0.0-0.1-0.2-0.0-0.0-0.00.30.00.00.2-0.00.0-0.00.2-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:PensionPlansDefinedBenefit us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

mpc:AccumulatedGainLossNetWorkersCompensation


Other
Period End2020-09-302020-06-302020-03-312019-09-30
Value-2.0-1.0-1.0-1.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-100.010.016.72.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:AccumulatedGainLossNetWorkersCompensation0.00.00.00.0

mpc:AccumulatedGainLossOther


Other
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-30
Value-4.0-2.0-1.0-1.0-1.0-1.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-2.3-100.010.016.72.010.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:AccumulatedGainLossOther0.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value1839.013-1.04.0-42.0-1.0
Percentage of OtherComprehensiveIncomeLossNetOfTax107.0900.0650.010.0-66.782.410.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.00.1-0.00.0-0.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-8.0-8.0-9.0-8.0-9.0-8.0-8.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-4.7-800.0-450.080.0150.015.780.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.1-0.1-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1711.02.0-10.0-6.0-51.0-10.0-7.024650.0-2.08.0-3.01.0-3.093-6.0-6.0-3.0-85.0-10.0-13.0-1.01.04912882258.036517-278.0-5.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.00.0-0.1-0.0-0.2-0.0-0.00.10.30.0-0.00.0-0.00.0-0.00.5-0.0-0.0-0.0-0.4-0.0-0.0-0.00.00.20.50.40.10.01.80.1-1.4-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value880264574-609.0276-10218.0262136713672591195941123523521251004574101289219783-78.01689588399038056798642076311735997307591224814596-75.01133802529
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.70.33.2-3.51.8-40.50.94.44.10.93.74.15.61.310.15.23.20.61.71.34.7-0.61.15.14.15.33.62.73.20.92.50.72.33.13.75.84.02.9-0.45.53.93.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value29615227111797217408150242521528008310433354728081323332278722118186942105519210181801628817155166181681112755156071871620537171912225025438268442328524897262562567723330206862104820242202651942020616207601784217433158971579513362
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


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
Value12781227121612553004486159186337670256635942371936353011
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.35.46.87.220.019.321.120.420.020.218.416.316.416.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.35.46.87.220.019.321.120.420.020.218.416.316.416.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


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
Value3089323938191881866318028300763701037380402493393038275267072595221877
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax104.3105.4106.8107.2120.0119.3132.1120.4120.0120.8118.4117.2117.3117.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax104.3105.4106.8107.2120.0119.3132.1120.4120.0120.8118.4117.2117.3117.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination, mpc:Midstream


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
Value12481199120112321169124212411235121812321207787762631
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.25.36.77.17.84.94.44.03.64.43.73.53.43.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.25.36.77.17.84.94.44.03.64.43.73.53.43.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination mpc:Midstream100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, mpc:RefiningAndMarketing


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
Value302815231834361746755100548244294733293128712379
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.112.214.316.716.416.315.814.612.913.012.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.112.214.316.716.416.315.814.612.913.012.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mpc:Midstream


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
Value23092249215721471974216022582164214921892175162915121344
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.89.912.012.313.18.68.17.06.47.86.77.16.87.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.89.912.012.313.18.68.17.06.47.86.77.16.87.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments mpc:Midstream100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


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
Value2858421689170311651611275211452668826537291542436327783196821917315961
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.595.594.894.975.083.995.385.586.986.885.986.486.785.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.595.594.894.975.083.995.385.586.986.885.986.486.785.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

mpc:MidstreamServicesAndOther


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value117488189680188610578978918591053654
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.95.15.33.53.82.92.73.13.32.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.95.15.33.53.82.92.73.13.32.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:MidstreamServicesAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RefinedProducts


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value20091159361552211621219972789727462296682465328623198151929216158
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.588.789.277.387.299.688.588.487.888.587.087.286.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax88.588.789.277.387.299.688.588.487.888.587.087.286.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:RefinedProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:CrudeOil


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value14461155990100387512297921310
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.46.45.76.73.54.42.63.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.46.45.76.73.54.42.63.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:CrudeOil100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

mpc:MidstreamServicesAndOther, mpc:Midstream


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value768775749685749946712741741884544
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.44.34.34.63.03.42.32.22.62.72.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.44.34.34.63.03.42.32.22.62.72.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:MidstreamServicesAndOther mpc:Midstream100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:MidstreamServicesAndOther, mpc:RefiningAndMarketing


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value406106147971138616112298145105
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.80.60.80.60.40.30.50.40.30.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.80.60.80.60.40.30.50.40.30.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:MidstreamServicesAndOther mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RefinedProducts, mpc:Midstream


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
Value304282181166120169216176190216238238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.21.01.00.80.70.80.60.60.80.71.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.21.01.00.80.70.80.60.60.80.71.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:RefinedProducts mpc:Midstream100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RefinedProducts, mpc:RefiningAndMarketing


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
Value26528198091575515356834116539212062033022221187502242315636
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.687.287.788.255.565.675.765.566.266.869.468.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax89.687.287.788.255.565.675.765.566.266.869.468.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:RefinedProducts mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:ServicesAndOther, mpc:Midstream


Revenue
Period End2021-06-302020-06-30
Value757685
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.64.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.64.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:ServicesAndOther mpc:Midstream100.0100.0

mpc:ServicesAndOther, mpc:RefiningAndMarketing


Revenue
Period End2021-06-302020-06-30
Value160116
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:ServicesAndOther mpc:RefiningAndMarketing100.0100.0

srt:CrudeOil, mpc:RefiningAndMarketing


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value186614461155990100387512297921310
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.36.46.45.76.73.54.42.63.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.36.46.45.76.73.54.42.63.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:CrudeOil mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

mpc:Midstream


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
Value106110509569158059181017929931957968842750713
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.64.65.35.35.43.63.63.02.83.43.03.73.43.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.64.65.35.35.43.63.63.02.83.43.03.73.43.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:Midstream100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RefiningAndMarketing


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
Value285542166117016164939441175282201321437236721975122870165521610513412
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.495.494.794.762.869.578.669.170.670.370.772.672.871.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.495.494.794.762.869.578.669.170.670.370.772.672.871.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:RefiningAndMarketing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:ReportableSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value22711179721740815024252153109231043335472808132151227872211818694
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0111.0100.0100.0100.099.4100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0111.0100.0100.0100.099.4100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax mpc:ReportableSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value29615227111797217408150242521531092310433354728267323332298822317188662105519210181801628817155166181681112755156071871620537171912225025438268442328524897262562567723330206862104820242202651942020616207601784217433158971579513362
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0111.0100.0100.0100.7100.0100.9100.9100.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value6255756306737468217908339048811147445424402457412485389406420401378433392393358371342316346336305358249279305376263302299288217260226228
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.12.53.53.95.03.32.82.72.73.13.52.01.92.22.22.12.72.42.42.52.43.02.82.11.92.11.71.31.21.51.31.21.41.11.31.41.91.31.61.51.41.21.51.41.4

us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Selling
Period End2021-06-302020-06-30
Value4881
Percentage of SellingGeneralAndAdministrativeExpense7.710.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsDisposedOfBySale0.00.0

us-gaap:DiscontinuedOperationsHeldforsale


Selling
Period End2021-03-312020-09-302020-03-312019-09-30
Value73717954
Percentage of SellingGeneralAndAdministrativeExpense12.710.59.66.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.30.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DiscontinuedOperationsHeldforsale0.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value943008665185158840208459386317985569813996896964369294053031517365036449047468064544745821444134329344133417584311530161306533018230460317052937629159283852900329695307732722326583246812530625745252252396423232
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Assetsus-gaap:
Period End2021-03-312020-12-312020-09-302019-12-31
Value11167112011106911135
Percentage of Assets12.913.213.211.3
Percentage of Assets12.913.213.211.3
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale100.0100.0100.0100.0

us-gaap:Assets us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Assetsus-gaap:
Period End2020-12-312019-12-31
Value1120111135
Percentage of Assets13.211.3
Percentage of Assets13.211.3
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value576075717254938535065277654121554495451552830525744788732997319153050127219260042488325024232102233623205222642344017236183631820219070204391833918401170531773917498183611511815116143551609016240151761498714988
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets61.166.064.563.762.462.756.355.554.554.551.562.261.760.655.555.654.854.652.351.652.653.354.457.159.960.362.664.562.463.160.161.258.959.755.556.958.263.663.160.262.564.5

us-gaap:Liabilities us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Liabilitiesus-gaap:
Period End2021-03-312020-12-312020-09-302019-12-31
Value1592174917131748
Percentage of Liabilities2.83.23.23.2
Percentage of Assets1.82.12.01.8
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale14.315.615.515.7

us-gaap:Liabilities us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value17491748
Percentage of Liabilities3.23.2
Percentage of Assets2.11.8
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway15.615.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value943008665185158840208459386317985569813996896964369294053031517365036449047468064544745821444134329344133417584311530161306533018230460317052937629159283852900329695307732722326583246812530625745252252396423232
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value2892121592221992245323741240883369433738342073395135175151661495814988140331293012636130701355713395134901290213237122771164311338107511084910620103441092010851117841200011694114671032692169505100498977903682448485869391728936
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.724.926.126.728.127.934.234.435.335.237.828.628.929.828.627.627.828.530.530.930.630.930.740.738.037.635.334.236.235.538.537.439.739.043.043.141.836.436.939.837.50.035.50.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value385923036128287262001464315693201701913918396181511802315873155481452513401116311044311042104019545103048097947110861114311105311339128871359613448127371353114252152971302912516107061158012001116691051310056
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.935.033.231.217.318.220.519.519.018.819.429.930.128.827.324.823.024.123.422.023.319.422.036.037.336.637.240.646.346.144.946.748.049.747.947.143.445.846.646.343.943.3

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value12981195
Percentage of AssetsCurrent4.65.9
Percentage of Assets1.51.2
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-06-30
Value4080
Percentage of Cash100.0
Percentage of Assets4.3

us-gaap:Cash us-gaap:BalanceSheetLocation

us-gaap:CashAndCashEquivalents


Cashus-gaap:
Period End2021-06-30
Value4080
Percentage of Cash100.0
Percentage of Assets4.3
Percentage of Assets us-gaap:CashAndCashEquivalents0.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value11839624415618109116901527152512478771687499249994653301120881450216788770917543081127204418812078149418542125216622922018306947374860338718952205307929571622219118117154128108
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.60.70.50.71.32.01.51.61.30.91.89.49.79.26.14.53.24.72.01.64.00.72.66.86.16.94.95.87.27.48.17.010.315.417.912.77.78.712.011.76.80.00.50.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value8.0241528675715
Percentage of CashAndCashEquivalentsAtCarryingValue0.13.83.64.56.13.41.0
Percentage of Assets0.00.00.00.00.10.10.0
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Cash
Period End2021-03-312020-12-312020-09-302019-12-31
Value13414098134
Percentage of CashAndCashEquivalentsAtCarryingValue21.533.715.98.8
Percentage of Assets0.20.20.10.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.21.20.91.2

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Cash
Period End2020-12-312019-12-31
Value140134
Percentage of CashAndCashEquivalentsAtCarryingValue33.78.8
Percentage of Assets0.20.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.21.2

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
Value1183962541662010931694152915281249908172549955004465730152095145421708921136
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 Assets12.60.70.50.71.32.01.61.61.30.91.99.49.79.26.14.53.24.72.02.6

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-31
Value1341409812789134180204166
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents21.433.715.811.65.38.811.811.85.5
Percentage of Assets0.20.20.10.20.10.10.20.20.3
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.21.20.90.00.01.20.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value977174685760491143615583787274617603689358535408491946134695390032593284361731363199260229273124387633644058527157255420555955936163550946105101470858675459491350414393
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.48.66.85.85.26.58.07.67.87.16.310.29.59.29.68.37.27.28.17.27.26.26.810.412.611.113.316.619.518.619.619.320.817.916.919.219.123.221.219.521.018.9

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value546536478483567544615
Percentage of AccountsReceivableNetCurrent5.67.28.39.813.09.77.8
Percentage of Assets0.60.60.60.60.70.60.6
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:AccountsReceivableNetCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Accounts
Period End2021-03-312020-12-312020-09-302019-12-31
Value244217238246
Percentage of AccountsReceivableNetCurrent3.33.84.83.1
Percentage of Assets0.30.30.30.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale2.21.92.22.2

us-gaap:AccountsReceivableNetCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Accounts
Period End2020-12-312019-12-31
Value217246
Percentage of AccountsReceivableNetCurrent3.83.1
Percentage of Assets0.30.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.92.2

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value8879840779997403808674451024396969088983398375339548551115550549355485392565655245209498352255556554054375642560856215689468957144830487934493889403033523320361536793071
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.79.48.89.68.610.49.99.410.210.610.110.610.111.311.712.211.812.712.811.811.912.118.418.118.018.517.719.119.516.519.716.315.912.714.616.313.212.914.315.413.2

us-gaap:InventoryNet dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value126128118117115105110
Percentage of InventoryNet1.41.51.51.61.41.41.1
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:InventoryNet us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Inventory
Period End2021-03-312020-12-312020-09-302019-12-31
Value417438409439
Percentage of InventoryNet5.05.55.54.3
Percentage of Assets0.50.50.50.4
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale3.73.93.73.9

us-gaap:InventoryNet us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Inventory
Period End2020-12-312019-12-31
Value438439
Percentage of InventoryNet5.54.3
Percentage of Assets0.50.4
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway3.93.9

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve

us-gaap:InventoryLIFOReserve


Inventory
Period End2020-09-302020-06-302020-03-312019-12-31
Value1185174032200.0
Percentage of InventoryLIFOReserve100.0100.0100.00.0
Percentage of Assets1.42.13.70.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value268526952724219911059755284574585486461341451481451501861992411761422041921371341741451541251731972061901721101397315614118317065
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.83.13.22.61.31.10.50.50.50.60.70.30.30.30.30.30.40.40.50.40.30.50.40.50.40.60.50.50.40.60.70.70.60.60.40.50.30.60.50.70.70.3

us-gaap:OtherAssetsCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value464967604945110
Percentage of OtherAssetsCurrent1.71.82.52.74.44.620.8
Percentage of Assets0.00.10.10.10.10.10.1
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OtherAssetsCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Other
Period End2021-03-312020-12-312020-09-302019-12-31
Value36343428
Percentage of OtherAssetsCurrent1.31.21.55.3
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale0.30.30.30.3

us-gaap:OtherAssetsCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Other
Period End2020-12-312019-12-31
Value3428
Percentage of OtherAssetsCurrent1.25.3
Percentage of Assets0.00.0
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway0.30.3

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AssetsNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value1769716362
Percentage of AssetsNoncurrent100.0100.0
Percentage of Assets20.816.6
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value597945953959339593246600465470646236329062902618826121343276419854117640538397183900238406380063752636877362153560426361260072562125302247122227721987217932137521106208901940919051186891830918073176601736616624
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets63.468.769.770.678.075.865.664.564.964.265.981.681.281.882.784.985.883.885.686.783.686.782.687.484.884.983.177.975.875.476.873.771.167.971.371.775.772.470.270.072.571.6

us-gaap:PropertyPlantAndEquipmentGross mpc:MajorAssetClass, us-gaap:PropertyPlantAndEquipmentByType

mpc:GasGatheringAndTransmissionEquipmentAndFacilities, us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value990980
Percentage of PropertyPlantAndEquipmentGross1.71.5
Percentage of Assets1.21.0
Percentage of Assets mpc:GasGatheringAndTransmissionEquipmentAndFacilities us-gaap:EquipmentLeasedToOtherParty0.00.0

mpc:LandBuildingOfficeEquipmentAndOther, us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value1517
Percentage of PropertyPlantAndEquipmentGross0.00.0
Percentage of Assets0.00.0
Percentage of Assets mpc:LandBuildingOfficeEquipmentAndOther us-gaap:EquipmentLeasedToOtherParty0.00.0

mpc:ProcessingFractionationAndStorageFacilities, us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value867855
Percentage of PropertyPlantAndEquipmentGross1.51.3
Percentage of Assets1.00.9
Percentage of Assets mpc:ProcessingFractionationAndStorageFacilities us-gaap:EquipmentLeasedToOtherParty0.00.0

mpc:Terminalsandrelatedassets, us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value12883
Percentage of PropertyPlantAndEquipmentGross0.20.1
Percentage of Assets0.20.1
Percentage of Assets mpc:Terminalsandrelatedassets us-gaap:EquipmentLeasedToOtherParty0.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value13891365135613461328130812891229123413041294835827811792822802782817795791769762713679639618594588570546526525473
Percentage of PropertyPlantAndEquipmentGross2.32.32.32.32.02.02.01.92.02.12.11.92.02.02.02.12.12.02.12.12.12.12.12.72.62.52.42.42.62.62.52.52.52.4
Percentage of Assets1.51.61.61.61.61.51.31.31.31.41.41.61.61.61.61.81.81.71.81.81.81.81.82.42.22.12.01.92.02.01.91.81.81.7
Percentage of Assets us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.013.20.00.00.028.50.00.00.026.10.00.00.020.615.013.50.011.40.00.07.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value27832277582767727823276962749027193266522647225929256921821317411168891489814489140531368412664123281200911707108502044
Percentage of PropertyPlantAndEquipmentGross46.546.646.646.942.042.042.142.142.141.942.042.141.541.036.836.536.035.633.332.932.632.330.58.1
Percentage of Assets29.532.032.533.132.731.827.627.227.326.927.634.333.733.530.431.030.929.928.528.527.228.025.26.7
Percentage of Assets us-gaap:OperatingSegments mpc:Midstream0.00.00.00.00.00.00.00.00.00.00.00.00.00.074.70.00.00.070.10.00.00.063.684.9

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value30573304163030630155297812951129037284702842927968275901870818314181171949019174189891883519447191791890918631189251855518434182251800117646173291711716982167121653615089
Percentage of PropertyPlantAndEquipmentGross51.151.151.150.845.145.144.945.045.245.245.143.243.644.048.148.348.749.051.251.151.351.453.270.470.971.171.171.477.877.977.978.278.377.7
Percentage of Assets32.435.135.635.935.234.229.529.029.329.029.735.335.436.039.741.041.841.143.844.342.844.643.961.560.160.459.155.759.058.759.857.655.755.4
Percentage of Assets us-gaap:OperatingSegments mpc:RefiningAndMarketing0.00.00.00.00.00.00.00.00.00.00.00.00.00.0111.10.00.00.0107.80.00.00.0106.40.00.00.091.187.383.70.086.882.083.688.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value183034803490220020202263104374752025811997
Percentage of PropertyPlantAndEquipmentGross3.15.45.75.45.36.44.13.42.714.312.0
Percentage of Assets2.13.53.84.54.55.23.42.61.910.08.6
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value20001935
Percentage of PropertyPlantAndEquipmentGross3.43.0
Percentage of Assets2.32.0
Percentage of Assets us-gaap:EquipmentLeasedToOtherParty0.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value217982104820304195672097920137190081825617567167911615515559150541455814095136821321612737122411182911365108961044010067972493809041871384278133787275807307704067666519627560635845563454314900
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.124.323.823.324.823.319.318.618.117.417.429.329.128.928.729.229.127.827.627.325.826.124.233.431.731.129.727.528.727.927.726.124.622.924.924.525.424.022.722.322.721.1

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Accumulated
Period End2021-06-302021-03-312020-12-31
Value892861830
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment4.14.14.1
Percentage of Assets0.91.01.0
Percentage of Assets us-gaap:CorporateNonSegment0.00.00.0

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Accumulated
Period End2021-06-302021-03-312020-12-31
Value682065086217
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment31.330.930.6
Percentage of Assets7.27.57.3
Percentage of Assets us-gaap:OperatingSegments mpc:Midstream0.00.00.0

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Accumulated
Period End2021-06-302021-03-312020-12-31
Value140861367913257
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment64.665.065.3
Percentage of Assets14.915.815.6
Percentage of Assets us-gaap:OperatingSegments mpc:RefiningAndMarketing0.00.00.0

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType

us-gaap:EquipmentLeasedToOtherParty


Accumulated
Period End2020-12-312019-12-31
Value430327
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment2.11.7
Percentage of Assets0.50.3
Percentage of Assets us-gaap:EquipmentLeasedToOtherParty0.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value379963849139035397574502545333456154503445335450914505827717269312661826443260362578625669257652569725512253192516416294162831624116261159991385013854139211379513799138501264312532124141224612228120261193511724
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets40.344.445.847.353.252.546.345.946.846.848.552.352.152.953.955.656.756.058.059.457.860.658.454.053.153.853.450.547.147.549.047.646.545.046.447.150.348.447.547.749.850.5

us-gaap:PropertyPlantAndEquipmentNet dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value20352212052141821815219582203022174
Percentage of PropertyPlantAndEquipmentNet53.655.154.954.948.848.648.6
Percentage of Assets21.624.525.226.026.025.522.5
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Property
Period End2021-06-302021-03-312020-12-31
Value497504526
Percentage of PropertyPlantAndEquipmentNet1.31.31.3
Percentage of Assets0.50.60.6
Percentage of Assets us-gaap:CorporateNonSegment0.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Property
Period End2021-06-302021-03-312020-12-31
Value210122125021460
Percentage of PropertyPlantAndEquipmentNet55.355.255.0
Percentage of Assets22.324.525.2
Percentage of Assets us-gaap:OperatingSegments mpc:Midstream0.00.00.0

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Property
Period End2021-06-302021-03-312020-12-31
Value164871673717049
Percentage of PropertyPlantAndEquipmentNet43.443.543.7
Percentage of Assets17.519.320.0
Percentage of Assets us-gaap:OperatingSegments mpc:RefiningAndMarketing0.00.00.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Property
Period End2021-03-312020-12-312020-09-302019-12-31
Value4885478447114745
Percentage of PropertyPlantAndEquipmentNet12.712.311.810.4
Percentage of Assets5.65.65.64.8
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale43.742.742.642.6

us-gaap:PropertyPlantAndEquipmentNet us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Property
Period End2020-12-312019-12-31
Value47844745
Percentage of PropertyPlantAndEquipmentNet12.310.4
Percentage of Assets5.64.8
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway42.742.6

us-gaap:PropertyPlantAndEquipmentNet us-gaap:PropertyPlantAndEquipmentByType

us-gaap:EquipmentLeasedToOtherParty


Property
Period End2020-12-312019-12-31
Value15701608
Percentage of PropertyPlantAndEquipmentNet4.03.5
Percentage of Assets1.81.6
Percentage of Assets us-gaap:EquipmentLeasedToOtherParty0.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value82568256825682561271012710200402127720277202292018437133586358635863586358635863587364836483649401915651566156615661537937938938938938930930930925842842842842837872
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.89.59.79.815.014.720.321.720.921.021.77.06.97.17.37.77.97.88.18.48.38.79.35.25.15.25.14.83.23.23.33.23.23.03.43.53.73.33.33.33.53.60.0

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

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Goodwilldei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7657765776577657772277229536
Percentage of Goodwill92.792.792.792.760.860.847.6
Percentage of Assets8.18.89.09.19.18.99.7
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:Goodwill us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

mpc:DirectDealer, mpc:RefiningAndMarketing


Goodwillus-gaap:
Period End2020-09-30
Value561
Percentage of Goodwill6.8
Percentage of Assets0.7
Percentage of Assets mpc:DirectDealer mpc:RefiningAndMarketing0.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

mpc:Midstream


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value7695769577597759951710323227622562256225622572616162162
Percentage of Goodwill93.293.261.061.047.551.163.562.961.861.861.965.110.317.3
Percentage of Assets9.09.29.29.09.711.14.65.15.25.15.46.10.50.6
Percentage of Assets mpc:Midstream0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

mpc:RefiningAndMarketing


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-312009-12-31
Value5615610.00.055725020519539539539539550550550551551551551551551551550550554577
Percentage of Goodwill6.86.80.00.027.824.914.515.014.814.814.813.735.135.858.758.758.759.259.259.665.465.365.366.266.2
Percentage of Assets0.70.70.00.05.75.41.11.21.21.21.31.31.81.71.91.91.92.02.12.22.12.22.32.40.0
Percentage of Assets mpc:RefiningAndMarketing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.03.30.03.20.00.03.10.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2020-12-312019-12-312018-12-312017-12-31
Value71949495
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0
Percentage of Assets0.10.10.10.2

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value236029283314726725719287
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.83.03.61.51.61.70.9

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Intangible
Period End2020-12-312019-12-312018-12-312017-12-31
Value224026632923515
Percentage of IntangibleAssetsNetExcludingGoodwill94.990.988.270.9
Percentage of Assets2.62.73.11.1
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.0

us-gaap:OtherIntangibleAssets


Intangible
Period End2020-12-312019-12-312018-12-312017-12-31
Value9.011015749
Percentage of IntangibleAssetsNetExcludingGoodwill0.43.84.76.7
Percentage of Assets0.00.10.20.1
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.0

us-gaap:RoyaltyAgreements


Intangible
Period End2020-12-312019-12-312018-12-312017-12-31
Value46555966
Percentage of IntangibleAssetsNetExcludingGoodwill1.91.91.89.1
Percentage of Assets0.10.10.10.1
Percentage of Assets us-gaap:RoyaltyAgreements0.00.00.00.0

us-gaap:TrademarksAndTradeNames


Intangible
Period End2020-12-312019-12-312018-12-312017-12-31
Value651001751.0
Percentage of IntangibleAssetsNetExcludingGoodwill2.83.45.30.1
Percentage of Assets0.10.10.20.0
Percentage of Assets us-gaap:TrademarksAndTradeNames0.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value15001514152116402454256224592522258826800.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.61.71.82.02.93.02.52.62.72.80.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value297296309323341352365
Percentage of OperatingLeaseRightOfUseAsset19.819.620.319.713.913.714.8
Percentage of Assets0.30.30.40.40.40.40.4
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Operating
Period End2021-03-312020-12-312020-09-302019-12-31
Value587719716653
Percentage of OperatingLeaseRightOfUseAsset38.847.343.726.6
Percentage of Assets0.70.80.90.7
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale5.36.46.55.9

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Operating
Period End2020-12-312019-12-31
Value719653
Percentage of OperatingLeaseRightOfUseAsset47.326.6
Percentage of Assets0.80.7
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway6.45.9

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value25322594263727054021436333743442357137273777818833818830784809820833849876886839368379420429420303317326322378369300305334336372367351303
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.03.13.24.85.13.43.53.73.94.11.51.61.61.71.71.81.81.92.02.02.11.91.21.21.41.41.31.01.11.11.11.31.21.11.11.41.31.41.51.51.3

us-gaap:OtherAssetsNoncurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value95899110061039107411051323
Percentage of OtherAssetsNoncurrent37.838.238.138.426.725.339.2
Percentage of Assets1.01.11.21.21.31.31.3
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OtherAssetsNoncurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Other
Period End2021-03-312020-12-312020-09-302019-12-31
Value169168157170
Percentage of OtherAssetsNoncurrent6.56.45.85.0
Percentage of Assets0.20.20.20.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.51.51.41.5

us-gaap:OtherAssetsNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Other
Period End2020-12-312019-12-31
Value168170
Percentage of OtherAssetsNoncurrent6.45.0
Percentage of Assets0.20.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.51.5

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value12170995378036701611081061162311380109051056893668016811370668297615953075343559350555214408347434993622553876661872689349313823489618601887267856951615578038169697473136453
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.911.59.28.07.29.411.811.611.311.010.115.115.714.016.913.211.711.712.611.711.89.811.016.620.317.821.927.530.431.929.030.929.028.824.926.124.930.831.727.630.527.8

us-gaap:AccountsPayableCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value495474468470471521744
Percentage of AccountsPayableCurrent4.14.86.07.07.76.46.4
Percentage of Assets0.50.50.50.60.60.60.8
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:AccountsPayableCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Accounts
Period End2021-03-312020-12-312020-09-302019-12-31
Value352300301401
Percentage of AccountsPayableCurrent3.53.84.53.5
Percentage of Assets0.40.40.40.4
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale3.22.72.73.6

us-gaap:AccountsPayableCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Accounts
Period End2020-12-312019-12-31
Value300401
Percentage of AccountsPayableCurrent3.83.5
Percentage of Assets0.40.4
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway2.73.6

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value52191034110510231272109811861015122315291446657713639169361177135153163336145184845517933647586909614513609612965598709604582558983524
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.51.21.31.21.51.31.21.01.31.61.61.21.41.30.30.80.40.30.30.40.80.30.42.81.73.12.11.83.12.11.82.12.13.12.22.72.42.32.23.92.3

us-gaap:AccruedIncomeTaxesCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value83677693837280
Percentage of AccruedIncomeTaxesCurrent1.66.56.99.16.56.66.7
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:AccruedIncomeTaxesCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Accrued
Period End2021-03-312020-12-312020-09-302019-12-31
Value160178177171
Percentage of AccruedIncomeTaxesCurrent15.516.117.314.4
Percentage of Assets0.20.20.20.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.41.61.61.5

us-gaap:AccruedIncomeTaxesCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Accrued
Period End2020-12-312019-12-31
Value178171
Percentage of AccruedIncomeTaxesCurrent16.114.4
Percentage of Assets0.20.2
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.61.5

Debt Current

us-gaap:DebtCurrent

us-gaap:DebtCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value701786285425001715171071155755455054426262662429292828282721529780780776272626242323232219201915
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.12.13.43.02.02.00.70.60.60.60.60.00.10.11.30.10.10.10.10.10.10.50.12.62.52.60.10.10.10.10.10.10.10.10.10.10.10.1

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value195121608515663142461150413569161471533914890151471321696349715837210478764767586866714663406782559563457686872583468579103721105510846982410401102411072882038308756892019591861285498620
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.718.618.417.013.615.716.415.615.415.714.218.218.816.621.416.314.915.016.114.615.413.414.725.528.527.728.232.737.637.234.635.934.534.930.131.330.736.437.334.135.737.1

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value754997
Percentage of LiabilitiesCurrent4.86.2
Percentage of Assets0.91.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4734754975316256306045866156130.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.50.50.60.60.70.70.60.60.60.60.0

us-gaap:OperatingLeaseLiabilityCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value63636365696766
Percentage of OperatingLeaseLiabilityCurrent13.313.312.712.211.010.610.9
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Operating
Period End2021-03-312020-12-312020-09-302019-12-31
Value77949490
Percentage of OperatingLeaseLiabilityCurrent16.218.917.714.9
Percentage of Assets0.10.10.10.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale0.70.80.80.8

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Operating
Period End2020-12-312019-12-31
Value9490
Percentage of OperatingLeaseLiabilityCurrent18.914.9
Percentage of Assets0.10.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway0.80.8

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value92974482290096791889786281592970844243130429626837635037832635939142630936532135432451926527519031515211277204201180125247168
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.91.01.11.11.10.90.90.81.00.80.80.80.60.60.60.80.80.90.80.80.91.01.01.21.11.21.01.80.91.00.71.10.50.40.30.80.80.70.51.00.7

us-gaap:OtherLiabilitiesCurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value298274297272265268259
Percentage of OtherLiabilitiesCurrent32.136.836.130.227.429.228.9
Percentage of Assets0.30.30.30.30.30.30.3
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OtherLiabilitiesCurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Other
Period End2021-03-312020-12-312020-09-302019-12-31
Value154170161139
Percentage of OtherLiabilitiesCurrent20.720.717.915.5
Percentage of Assets0.20.20.20.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.41.51.51.2

us-gaap:OtherLiabilitiesCurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Other
Period End2020-12-312019-12-31
Value170139
Percentage of OtherLiabilitiesCurrent20.715.5
Percentage of Assets0.20.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.51.2

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value47362769
Percentage of LiabilitiesNoncurrent100.0100.0
Percentage of Assets5.62.8
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2876132935320443234532605320402928229294288552857127980189681780117807134181326913106131121106911077115831210412475675367606766665762833639365933953401340634113355334233273299
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.538.037.638.538.537.129.729.829.829.630.135.834.435.427.428.328.828.624.925.626.229.028.922.422.122.421.919.812.412.512.011.711.511.112.312.613.512.8

us-gaap:DebtAndCapitalLeaseObligations us-gaap:ConsolidatedEntities

srt:ParentCompany


Debt
Period End2021-06-302020-12-312019-09-302019-06-302019-03-312018-12-31
Value9152115089174911991209114
Percentage of DebtAndCapitalLeaseObligations31.835.931.331.631.932.6
Percentage of Assets9.713.59.39.49.59.8
Percentage of Assets srt:ParentCompany0.00.00.00.00.00.0

srt:Subsidiaries


Debt
Period End2021-06-302020-12-312019-09-302019-06-302019-03-312018-12-31
Value196092053620120144731428313856
Percentage of DebtAndCapitalLeaseObligations68.264.168.750.250.049.5
Percentage of Assets20.824.120.514.914.814.9
Percentage of Assets srt:Subsidiaries0.00.00.00.00.00.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2825030694287302937730451298992812728282278532756526980184231724117232123221275312577125701054410538110321135111896591259185967661062383612363533733380338733943342332933163292
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.035.433.735.036.034.628.528.828.728.629.034.733.334.225.127.227.727.423.724.325.027.227.619.619.319.821.719.712.312.511.911.711.411.012.312.513.412.8

us-gaap:LongTermDebtAndCapitalLeaseObligations dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value19234200521937520042205562046719704
Percentage of LongTermDebtAndCapitalLeaseObligations68.165.367.468.267.568.570.1
Percentage of Assets20.423.122.823.924.323.720.0
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Long
Period End2021-03-312020-12-312020-09-302019-12-31
Value120122113107
Percentage of LongTermDebtAndCapitalLeaseObligations0.40.40.40.4
Percentage of Assets0.10.10.10.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale1.11.11.01.0

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Long
Period End2020-12-312019-12-31
Value122107
Percentage of LongTermDebtAndCapitalLeaseObligations0.40.4
Percentage of Assets0.10.1
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway1.11.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value5704621562035703591457726392618052355011486432063144312026543935392338883861368235203285
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.07.27.36.87.06.76.56.35.45.25.26.06.16.25.48.48.68.58.78.58.07.6

us-gaap:DeferredIncomeTaxLiabilitiesNet dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value11111212111112
Percentage of DeferredIncomeTaxLiabilitiesNet0.20.20.20.20.20.20.2
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value18501958212118161772170316431487161015671509104511561126109910299981085105511741242121611791139114311231099937906855771895929121412661270134818091783152214891493
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.32.52.22.12.01.71.51.71.61.62.02.22.22.22.22.22.42.42.72.82.92.73.83.73.73.63.03.12.92.73.13.13.94.74.85.57.16.96.06.26.4

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Pension
Period End2021-03-312020-12-312020-09-302019-12-31
Value27252326
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent1.41.21.31.6
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale0.20.20.20.2

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Pension
Period End2020-12-312019-12-31
Value2526
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent1.21.6
Percentage of Assets0.00.0
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway0.20.2

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1080984840793708
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent50.959.955.772.267.1
Percentage of Assets1.31.00.91.61.6
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1041659669306347
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent49.140.144.327.832.9
Percentage of Assets1.20.70.70.60.8
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value68046919705370937108714084458918885489078874386538603875679568726928672766466562644565926438648647642639417417414412413413412411
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.28.08.38.48.48.38.69.19.19.29.57.37.57.713.914.715.214.715.015.214.615.814.92.12.12.12.11.31.41.41.51.41.41.31.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value10201007101411161850194918751962206821530.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.11.21.21.32.22.31.92.02.12.20.0

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity, us-gaap:ConsolidatedEntities

mpc:MPLXLP, us-gaap:VariableInterestEntityPrimaryBeneficiary


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value232230244258274284302
Percentage of OperatingLeaseLiabilityNoncurrent22.722.824.123.114.814.616.1
Percentage of Assets0.20.30.30.30.30.30.3
Percentage of Assets mpc:MPLXLP us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsHeldforsale


Operating
Period End2021-03-312020-12-312020-09-302019-12-31
Value486598618575
Percentage of OperatingLeaseLiabilityNoncurrent48.359.055.430.7
Percentage of Assets0.60.70.70.6
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale4.45.35.65.2

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, mpc:Speedway


Operating
Period End2020-12-312019-12-31
Value598575
Percentage of OperatingLeaseLiabilityNoncurrent59.030.7
Percentage of Assets0.70.6
Percentage of Assets us-gaap:DiscontinuedOperationsHeldforsale mpc:Speedway5.35.2

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value373590665650629619
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.60.70.70.70.7

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value243402572562545553
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.60.60.60.6

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value170287388383370389
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.40.40.40.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value111222277273262295
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.20.30.30.30.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value224634855837832858
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.60.90.90.90.9

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-30
Value1511247925482683
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets1.82.52.62.8

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value166528332931308631923423
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.93.03.23.33.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value154
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value2892121592221992245323741240883369433738342073395135175151661495814988140331293012636130701355713395134901290213237122771164311338107511084910620103441092010851117841200011694114671032692169505100498977903682448485869391728936
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.724.926.126.728.127.934.234.435.335.237.828.628.929.828.627.627.828.530.530.930.630.930.740.738.037.635.334.236.235.538.537.439.739.043.043.141.836.436.939.837.50.035.50.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-31
Value357252851129252295463084931228421394265643061428584404919031188181886320828198021956419797202031995719935194941967512925122901198011390112661103710758113321126412197124121210511467103269216950582449172
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets37.932.934.435.236.536.242.843.544.444.447.435.936.437.542.542.343.043.245.546.145.246.745.642.940.139.737.435.537.636.939.938.841.140.344.543.141.836.436.935.50.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-31
Value-340.0-511.0-512.0-334.0-336.0-326.0-320.0-212.0-161.0-151.0-144.0-168.0-233.0-233.0-231.0-239.0-236.0-237.0-234.0-327.0-321.0-318.0-318.0-312.0-309.0-313.0-313.0-228.0-218.0-205.0-204.0-205.0-254.0-382.0-464.0-489.0-497.0-862.0-879.0-623.0-520.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.0-1.8-1.8-1.1-1.1-1.0-0.8-0.5-0.4-0.4-0.3-0.9-1.2-1.2-1.1-1.2-1.2-1.2-1.2-1.6-1.6-1.6-1.6-2.4-2.5-2.6-2.7-2.0-2.0-1.9-1.8-1.8-2.1-3.1-3.8-4.3-4.8-9.4-9.2-7.6-5.7
Percentage of Assets-0.4-0.6-0.6-0.4-0.4-0.4-0.3-0.2-0.2-0.2-0.2-0.3-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.8-0.7-0.8-0.7-1.0-1.0-1.0-1.0-0.7-0.7-0.7-0.7-0.7-0.9-1.2-1.7-1.8-2.0-3.4-3.4-2.70.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value332383322233208331833320833169331573312533785337643372913703136881366911262112361118511159110601100510996109821107199299912989098449833982298039768974897379676952795639426941094820.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest93.0116.5113.5112.3107.6106.278.777.778.578.876.672.072.772.554.156.757.256.454.755.155.256.356.376.880.782.686.487.389.091.186.286.579.878.078.783.491.3102.199.80.0
Percentage of Assets35.238.339.039.539.338.433.633.834.935.036.325.826.527.123.024.024.624.424.925.424.926.325.732.932.332.832.331.033.433.634.433.632.831.435.036.038.237.236.80.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value10.010.010.010.010.010.010.010.010.010.010.07.07.07.07.07.07.07.07.07.07.07.07.07.07.04.04.04.04.04.04.04.04.04.04.04.04.04.04.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value680469197053709371087140844589188854890788743865386038756795687269286727664665626445659264386486476426394174174144124134134124110.00.00.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest19.024.324.124.023.022.920.020.920.620.820.120.320.520.532.634.735.434.032.932.932.333.832.75.05.35.45.63.73.83.83.63.73.43.33.40.00.00.00.00.0
Percentage of Assets7.28.08.38.48.48.38.69.19.19.29.57.37.57.713.914.715.214.715.015.214.615.814.92.12.12.12.11.31.41.41.51.41.41.31.50.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value1216040294650474460086380159901589115146143911475514119135891274512864110441034410046102061016910215958497529736895982697515685663255591550750074969448938803241213614078980.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest34.014.115.916.119.520.437.937.335.233.633.574.272.267.661.855.852.950.750.551.051.249.249.675.372.969.066.060.957.352.048.644.540.736.232.128.320.715.39.40.0
Percentage of Assets12.94.65.55.67.17.416.216.215.614.915.926.626.325.326.223.622.821.923.023.523.123.022.632.329.227.424.721.621.519.219.417.316.714.614.312.28.75.63.50.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value-16147.0-15158.0-15157.0-15150.0-15149.0-15145.0-15143.0-15076.0-14573.0-14063.0-13175.0-12495.0-12093.0-11200.0-9869.0-9118.0-8664.0-7905.0-7482.0-7459.0-7407.0-7353.0-7275.0-7083.0-6926.0-6512.0-6299.0-5616.0-5313.0-4849.0-4155.0-3703.0-2672.0-1787.0-1253.0-852.0-743.0-743.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-45.2-53.2-51.8-51.3-49.1-48.5-35.9-35.3-33.8-32.8-29.9-65.7-64.3-59.4-47.4-46.0-44.3-39.9-37.0-37.4-37.2-37.7-37.0-54.8-56.4-54.4-55.3-49.8-48.1-45.1-36.7-32.9-21.9-14.4-10.4-7.4-7.2-8.10.00.0
Percentage of Assets-17.1-17.5-17.8-18.0-17.9-17.5-15.4-15.4-15.0-14.6-14.2-23.6-23.4-22.2-20.1-19.5-19.1-17.3-16.8-17.2-16.8-17.6-16.9-23.5-22.6-21.6-20.7-17.7-18.1-16.6-14.6-12.8-9.0-5.8-4.6-3.2-3.0-2.90.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value10000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.07000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.04000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value33238332223320833183332083316933157331253378533764337291370313688136691126211236111851115911060110051099610982110719929991298909844983398229803976897489737967695279563942694109482
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.238.339.039.539.338.433.633.834.935.036.325.826.527.123.024.024.624.424.925.424.926.325.732.932.332.832.331.033.433.634.433.632.831.435.036.038.237.236.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value1216040294650474460086380159901589115146143911475514119135891274512864110441034410046102061016910215958497529736895982697515685663255591550750074969448938803241213614078981062
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.94.65.55.67.17.416.216.215.614.915.926.626.325.326.223.622.821.923.023.523.123.022.632.329.227.424.721.621.519.219.417.316.714.614.312.28.75.63.54.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value-340000000.0-511000000.0-512000000.0-334000000.0-336000000.0-326000000.0-320000000.0-212000000.0-161000000.0-151000000.0-144000000.0-168000000.0-233000000.0-233000000.0-231000000.0-239000000.0-236000000.0-237000000.0-234000000.0-327000000.0-321000000.0-318000000.0-318000000.0-312000000.0-309000000.0-313000000.0-313000000.0-228000000.0-218000000.0-205000000.0-204000000.0-205000000.0-254000000.0-382000000.0-464000000.0-489000000.0-497000000.0-862000000.0-879000000.0-601000000.0-596000000.0-623000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.4-0.6-0.6-0.4-0.4-0.4-0.3-0.2-0.2-0.2-0.2-0.3-0.5-0.5-0.5-0.5-0.5-0.5-0.5-0.8-0.7-0.8-0.7-1.0-1.0-1.0-1.0-0.7-0.7-0.7-0.7-0.7-0.9-1.2-1.7-1.8-2.0-3.4-3.4-2.4-2.5-2.7

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value-176000000.0-178000000.0-181000000.0-116000000.0-117000000.0-117000000.0-116000000.0-23000000.0-23000000.0-23000000.0-23000000.0-51000000.0-50000000.0-49000000.0-48000000.0-9000000.0-8000000.0-8000000.0-7000000.0-70000000.0-69000000.0-70000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax51.834.835.434.734.835.936.210.814.315.216.030.421.521.020.83.83.43.43.021.421.522.0
Percentage of Assets-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.2-0.2-0.2
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value-167000000.0-340000000.0-338000000.0-222000000.0-225000000.0-216000000.0-212000000.0-197000000.0-147000000.0-138000000.0-132000000.0-119000000.0-186000000.0-189000000.0-190000000.0-235000000.0-233000000.0-235000000.0-233000000.0-263000000.0-258000000.0-255000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax49.166.566.066.567.066.366.292.991.391.491.770.879.881.182.398.398.799.299.680.480.480.2
Percentage of Assets-0.2-0.4-0.4-0.3-0.3-0.3-0.2-0.2-0.2-0.1-0.1-0.2-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.6-0.6-0.6
Percentage of Assets us-gaap:PensionPlansDefinedBenefit us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

mpc:AccumulatedGainLossNetWorkersCompensation


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2000000.06000000.06000000.03000000.05000000.06000000.07000000.06000000.07000000.09000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-0.6-1.2-1.2-0.9-1.5-1.8-2.2-2.8-4.3-6.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets mpc:AccumulatedGainLossNetWorkersCompensation0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent


Accumulated
Period End2020-12-312019-12-312018-12-31
Value6000000.07000000.09000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-1.2-2.2-6.2
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParent0.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1000000.01000000.01000000.01000000.01000000.01000000.01000000.02000000.02000000.02000000.02000000.02000000.02000000.02000000.04000000.04000000.04000000.04000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-0.3-0.2-0.2-0.3-0.3-0.3-0.3-0.9-1.2-1.3-1.4-1.2-0.9-0.9-1.7-1.7-1.7-1.7
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1614715158151571515015149151451514315076145731406313175124951209311200986991188664790574827459740773537275708369266512629956165313484941553703267217871253
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.117.517.818.017.917.515.415.415.014.614.223.623.422.220.119.519.117.316.817.216.817.616.923.522.621.620.717.718.116.614.612.89.05.84.6

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value68046919705370937108714084458918885489078874386538603875679568726928672766466562644565926438648647642639417417414412413413412411
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.28.08.38.48.48.38.69.19.19.29.57.37.57.713.914.715.214.715.015.214.615.814.92.12.12.12.11.31.41.41.51.41.41.31.5

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value27230030127930028929530528518618217917316514914213713112812111119.09.07.08.06.06.06.06.05.04.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value27230030127930028929530528518618217917316514914213713112812111119.09.07.08.06.06.06.06.05.04.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value138045413281321538-768.02409278726221623272711822386-137.027461901849111399140522633278081069994119038810788787661355407-436.02079204318332693476381719379151927-5.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.72.07.47.63.6-3.08.69.07.85.88.45.210.8-0.713.09.94.76.85.82.413.52.65.25.74.86.91.74.23.33.35.41.6-1.78.99.98.71.31.73.38.30.25.111.1-0.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value15670-267.0-433.0-747.0-989.0-1088.0-1686.0-1695.0-1360.0-1520.0-4775.0-1377.0-740.0-778.0-779.0-603.0-656.0-1356.0-724.0-721.0-769.0-727.0-2013.0-572.0-468.0-388.0-519.0-3343.0-321.0-360.0-505.0-333.0-236.0-1682.0-419.0-235.0-487.0-311.0-340.0-309.02428-484.0-1683.0-290.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.9-1.2-2.4-4.3-6.6-4.3-6.0-5.5-4.1-5.4-14.8-6.0-3.3-4.2-3.7-3.1-3.6-8.3-4.2-4.3-4.6-5.7-12.9-3.1-2.3-2.3-2.3-13.1-1.2-1.5-2.0-1.3-0.9-7.2-2.0-1.1-2.4-1.5-1.8-1.511.7-2.7-9.7-1.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-5970.016-1057.0-949.0-150.02021-722.0-813.0-921.0-920.0-1222.0186-1299.02557-1044.0-660.0-910.01523-89.0-729.0-48.0-419.0288-334.0-723.0-218.0-229.01994-598.0-532.0-576.0-1125.0-996.0-520.0-151.0-106.0-92.0-910.0-176.0-75.0-1062.0-330.0-243.0258
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-20.20.1-5.9-5.5-1.08.0-2.6-2.6-2.7-3.3-3.80.8-5.913.7-5.0-3.4-5.09.4-0.5-4.4-0.3-3.31.8-1.8-3.5-1.3-1.07.8-2.2-2.3-2.3-4.3-3.9-2.2-0.7-0.5-0.5-4.5-0.9-0.4-5.1-1.8-1.41.6

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value1922201916141410.09.00.01916171818161515141814157.02.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-73.024522-298.0160-625.02514122331275.04021-19.0-1290.03428-5.059160177-2.01406.0-10.0-2.0-116.0-35.0-77.0-14.01.0-12.0286.06797136192-6.09546-12.026161
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value871844849830935962978855886919874555533528540517521536504507500490413508362363359322325320332299302287283246236230230227218216218234269
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Depreciation
Period End2021-06-302020-06-30
Value7440
Percentage of DepreciationDepletionAndAmortization8.54.3

us-gaap:OperatingSegments


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value797812808791895917931810859860846538516512526503505522489493483476399352349350344310312308325294297281277240231
Percentage of DepreciationDepletionAndAmortization91.596.295.295.395.795.395.294.797.093.696.896.996.897.097.497.396.997.497.097.296.697.196.669.396.496.495.896.396.096.297.998.398.397.997.997.697.9

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:DirectDealer, mpc:RefiningAndMarketing


Depreciation
Period End2020-09-302019-09-30
Value3019
Percentage of DepreciationDepletionAndAmortization3.62.2

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value33133434333533034534230031830730820519118117116916819114714514414038272626
Percentage of DepreciationDepletionAndAmortization38.039.640.440.435.335.935.035.135.933.435.236.935.834.331.732.732.235.629.228.628.828.69.25.37.27.2

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value466478465456433447430397411427413257252252277266272267272277270273275269268267263257264261277246252236230198191
Percentage of DepreciationDepletionAndAmortization53.556.654.854.946.346.544.046.446.446.547.346.347.347.751.351.552.249.854.054.654.055.766.653.074.073.673.379.881.281.683.482.383.482.281.380.580.9

us-gaap:DepreciationDepletionAndAmortization us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Depreciation
Period End2021-06-302020-06-30
Value1.0102
Percentage of DepreciationDepletionAndAmortization0.110.9

us-gaap:DiscontinuedOperationsHeldforsale


Depreciation
Period End2021-03-312020-09-302020-03-312019-09-30
Value2.0369994
Percentage of DepreciationDepletionAndAmortization0.24.310.311.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value22241723863789-1218.0-1899.0409-135.07131037-2298.0484321-96.0797640-11.0-333.0465-67.0601-325.0-361.0-752.0512-691.0-1218.0-585.0300-139.0-34.0-565.0655884-491.0393-1159.0406545-127.0275471223283
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value472408-585.0-748.0-839.0422548558-744.04.0-716.0-149.0374-440.057-56.0157-264.0141315-160.0-226.06.016103-205.055-192.0-77.01000-1025.0875-62.0517-440.0-142.066532-294.0-64.0949-336.0-531.0369
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.0-5.0174.0-6.04.06.0-11.0-10.01.00.00.00.00.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value138045413281321538-768.02409278726221623272711822386-137.027461901849111399140522633278081069994119038810788787661355407-436.02079204318332693476381719379151927-5.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.72.07.47.63.6-3.08.69.07.85.88.45.210.8-0.713.09.94.76.85.82.413.52.65.25.74.86.91.74.23.33.35.41.6-1.78.99.98.71.31.73.38.30.25.111.1-0.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8512-242.0285-886.09.0-9234.044310951106-7.09517371055372016903483302271458011.01879488268917986728551996261685937257551224814596-75.01133802529230277405-289.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.7-1.11.6-5.10.1-36.61.63.53.3-0.02.93.24.80.29.64.72.70.21.30.94.80.01.25.14.05.23.62.63.20.92.50.62.33.13.65.84.02.9-0.45.53.93.01.31.72.6-2.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value880264574-609.0276-10218.0262136713672591195941123523521251004574101289219783-78.01689588399038056798642076311735997307591224814596-75.01133802529
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.70.33.2-3.51.8-40.50.94.44.10.93.74.15.61.310.15.23.20.61.71.34.7-0.61.15.14.15.33.62.73.20.92.50.72.33.13.75.84.02.9-0.45.53.93.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value15670-267.0-433.0-747.0-989.0-1088.0-1686.0-1695.0-1360.0-1520.0-4775.0-1377.0-740.0-778.0-779.0-603.0-656.0-1356.0-724.0-721.0-769.0-727.0-2013.0-572.0-468.0-388.0-519.0-3343.0-321.0-360.0-505.0-333.0-236.0-1682.0-419.0-235.0-487.0-311.0-340.0-309.02428-484.0-1683.0-290.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.9-1.2-2.4-4.3-6.6-4.3-6.0-5.5-4.1-5.4-14.8-6.0-3.3-4.2-3.7-3.1-3.6-8.3-4.2-4.3-4.6-5.7-12.9-3.1-2.3-2.3-2.3-13.1-1.2-1.5-2.0-1.3-0.9-7.2-2.0-1.1-2.4-1.5-1.8-1.511.7-2.7-9.7-1.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value302304457420848106215511404117812411263849711755804663655610745716686745721513375389528383302267473309229195403331326309341327274243296287
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-5970.016-1057.0-949.0-150.02021-722.0-813.0-921.0-920.0-1222.0186-1299.02557-1044.0-660.0-910.01523-89.0-729.0-48.0-419.0288-334.0-723.0-218.0-229.01994-598.0-532.0-576.0-1125.0-996.0-520.0-151.0-106.0-92.0-910.0-176.0-75.0-1062.0-330.0-243.0258
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-20.20.1-5.9-5.5-1.08.0-2.6-2.6-2.7-3.3-3.80.8-5.913.7-5.0-3.4-5.09.4-0.5-4.4-0.3-3.31.8-1.8-3.5-1.3-1.07.8-2.2-2.3-2.3-4.3-3.9-2.2-0.7-0.5-0.5-4.5-0.9-0.4-5.1-1.8-1.41.6

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value381379377378378377344348352354317207211219195202186190190190170169170171136136138141122123126129113116116119858789
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ShareRepurchaseProgram

us-gaap:PaymentsForRepurchaseOfCommonStock

mpc:ModifiedDutchAuctionTender


Payments
Period End2021-06-15
Value981
Percentage of PaymentsForRepurchaseOfCommonStock100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.031.00.570.160.040.20.210.290.030.190.190.09-0.440.290.30.29-0.010.260.33-0.17-0.010.350.340.35-0.010.330.350.3400.320.350.34-0.010.350.370.36-0.010.350.40.36-0.020.370.37
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value41.9542.5540.4937.0738.1338.0336.1733.7432.6632.3230.8228.9328.8428.5927.9227.1627.0226.9150.9145.4745.2845.0943.7340.0839.8639.8336.17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value62006372483526413844326823623241317126502559
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilities us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentAssets


Deferred
Period End2020-12-312019-12-31
Value3.020
Percentage of DeferredTaxLiabilities0.00.3

us-gaap:OtherNoncurrentLiabilities


Deferred
Period End2020-12-312019-12-31
Value62036392
Percentage of DeferredTaxLiabilities100.0100.3

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1629913964420693821764569675893752
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value232032211197.01212134020141916
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value111110.01110.04.04.03.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0

mpc:CapitalExpenditure

mpc:CapitalExpenditure


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value33125636554659389615451386113210061506841841707881738673759789692682475122345134063426543101322248483336277363355481
Percentage of CapitalExpenditure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:CapitalExpendituresAndInvestments us-gaap:ConsolidationItems

mpc:CapitalExpendituresAndInvestments

us-gaap:OperatingSegments


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value35427237455476210091721152113641290163391788571291075975212977997327516431473054246435569632493433404773502511546317312425
Percentage of CapitalExpendituresAndInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:CapitalExpendituresAndInvestments us-gaap:ConsolidationItems, us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:DirectDealer, mpc:RefiningAndMarketing


Capital
Period End2020-09-302019-09-30
Value6.08.0
Percentage of CapitalExpendituresAndInvestments1.10.5

mpc:CapitalExpendituresAndInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mpc:Midstream


Capital
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
Value17813819930042547487078381482395459360148248845349410703743944033501404715615787
Percentage of CapitalExpendituresAndInvestments50.350.753.254.255.847.050.651.559.763.858.464.767.967.753.659.765.782.546.853.853.754.495.428.833.824.5

us-gaap:OperatingSegments, mpc:RefiningAndMarketing


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1761341752542634596145614303944442261961912621981801923132672782434092982072293733182351782972431341420192182178
Percentage of CapitalExpendituresAndInvestments49.749.346.845.834.545.535.736.931.530.527.224.622.126.828.826.123.914.839.236.537.037.82.855.044.664.553.69.868.552.462.369.453.491.860.658.341.9

mpc:CapitalExpendituresExcludingCapitalizedInterest us-gaap:ConsolidationItems

mpc:CapitalExpendituresExcludingCapitalizedInterest

us-gaap:CorporateNonSegment


Capital
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
Value23211916182756304.010.0357.017183019181622142124603341212322132531542824
Percentage of CapitalExpendituresExcludingCapitalizedInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value269286269257246-1004.0-201.0252240246224185160182938574554658-27.0-79.0-19.010.013
Percentage of ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest

mpc:ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value21202020212020202120201920161616171616169.00.00.00.00.0
Percentage of ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

mpc:DeferredIncomeTaxChargeBenefitFromChangesInEquity us-gaap:StatementEquityComponents

mpc:DeferredIncomeTaxChargeBenefitFromChangesInEquity

us-gaap:AdditionalPaidInCapital


Deferred
Period End2021-06-302021-03-312020-06-302020-03-31
Value-7000000.0-31000000.0-6000000.07000000.0
Percentage of DeferredIncomeTaxChargeBenefitFromChangesInEquity100.0100.0100.0100.0

mpc:Deferredincometaximpactfromchangesinequity us-gaap:StatementEquityComponents

mpc:Deferredincometaximpactfromchangesinequity

us-gaap:AdditionalPaidInCapital


Deferredincometaximpactfromchangesinequityus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-07-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-3.016-6.07.0-1.06426321.01.0250.00.05463.0-15.07.034485.00.065
Percentage of Deferredincometaximpactfromchangesinequity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0

mpc:DerivativeInstrumentsPercentageOfDerivativeContractsExpiration1 us-gaap:Energy, us-gaap:TransactionType

mpc:DerivativeInstrumentsPercentageOfDerivativeContractsExpiration1

mpc:Blendingproducts, us-gaap:ExchangeTraded


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-31.596.45.793.44-0.141.00.1530.101-0.0320.773
Percentage of DerivativeInstrumentsPercentageOfDerivativeContractsExpiration1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RefinedProducts, us-gaap:ExchangeTraded


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value-3.591.1-6.494.5470.010.843-0.0240.0570.020.8940.9710.9251.01.00.921.01.01.0
Percentage of DerivativeInstrumentsPercentageOfDerivativeContractsExpiration111.194.5-112.3101.2-7.184.3-15.756.4-62.5115.70.00.00.00.00.00.00.00.0

mpc:SoybeanOil, us-gaap:ExchangeTraded


Derivative
Period End2021-06-302021-03-31
Value20.372.5
Percentage of DerivativeInstrumentsPercentageOfDerivativeContractsExpiration1-64.475.2

srt:CrudeOil, us-gaap:ExchangeTraded


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-17.681.8-16.797.657-0.0050.948-0.0640.148
Percentage of DerivativeInstrumentsPercentageOfDerivativeContractsExpiration155.984.9-293.0104.53.694.8-41.8146.5

mpc:DiscontinuedOperationCurrentIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

mpc:DiscontinuedOperationCurrentIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Discontinued
Period End2021-05-14
Value4160
Percentage of DiscontinuedOperationCurrentIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation100.0

mpc:DiscontinuedOperationDeferredIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

mpc:DiscontinuedOperationDeferredIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Discontinued
Period End2021-05-14
Value497
Percentage of DiscontinuedOperationDeferredIncomeTaxExpenseBenefitOnGainLossFromDisposalOfDiscontinuedOperation100.0

mpc:EffectiveIncomeTaxReconciliationCARESActlegislation

mpc:EffectiveIncomeTaxReconciliationCARESActlegislation


Effective
Period End2021-06-302020-09-302020-06-302020-03-312019-06-30
Value-23.0-29.0102-343.00.0
Percentage of EffectiveIncomeTaxReconciliationCARESActlegislation100.0100.0100.0100.00.0

mpc:FairValueInputsProbabilityOfRenewal us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

mpc:FairValueInputsProbabilityOfRenewal

us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:FairValueInputsLevel3


Fair
Period End2020-12-31
Value0
Percentage of FairValueInputsProbabilityOfRenewal0.0

mpc:FairValueInputsProbabilityOfRenewalFirstTerm us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

mpc:FairValueInputsProbabilityOfRenewalFirstTerm

us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-31
Value0100.0
Percentage of FairValueInputsProbabilityOfRenewalFirstTerm0.0100.0

mpc:FairValueInputsProbabilityofRenewalSecondTerm us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel

mpc:FairValueInputsProbabilityofRenewalSecondTerm

us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:FairValueInputsLevel3


Fair
Period End2021-06-302021-03-312020-12-31
Value0100.00
Percentage of FairValueInputsProbabilityofRenewalSecondTerm0.0100.00.0

mpc:ImpairmentCharges

mpc:ImpairmentCharges


Impairment
Period End2021-06-302020-12-312020-09-302020-06-302020-03-31
Value56146433259137
Percentage of ImpairmentCharges100.0100.0100.0100.0100.0

mpc:ImpairmentCharges us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Impairment
Period End2021-06-302020-09-302020-06-302020-03-312019-06-302019-03-31
Value-56.0-433.0-25.0-9137.00.00.0
Percentage of ImpairmentCharges-100.0-100.0-100.0-100.00.00.0

mpc:IncomeTaxReconciliationAccrualOfUnrecognizedTaxBenefits

mpc:IncomeTaxReconciliationAccrualOfUnrecognizedTaxBenefits


Income
Period End2021-06-302021-03-31
Value2.014
Percentage of IncomeTaxReconciliationAccrualOfUnrecognizedTaxBenefits100.0100.0

mpc:IncreaseDecreaseInAccrualForCapitalExpenditures

mpc:IncreaseDecreaseInAccrualForCapitalExpenditures


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value29-48.0-92.0-5.0-255.0-166.0-6.0-19.0-46.0-235.0242-10.0126-49.0764518-72.042-26.0-6.0-137.0116-2.027-47.09531-12.0-19.010.03234-3.0
Percentage of IncreaseDecreaseInAccrualForCapitalExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:LineOfCreditFacilityTermination us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument

mpc:LineOfCreditFacilityTermination

srt:ParentCompany, mpc:MPC364DayRevolverdueApril2021


Line
Period End2021-02-28
Value1000
Percentage of LineOfCreditFacilityTermination100.0

srt:ParentCompany, mpc:MPC364DayRevolverdueSeptember2021


Line
Period End2021-06-18
Value1000
Percentage of LineOfCreditFacilityTermination0.0

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value1000000.02000000.02000000.01000000.01000000.02000000.01000000.01000000.02000000.02000000.02000000.0001000000.000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.0

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation us-gaap:StatementEquityComponents

mpc:AccumulatedGainLossNetWorkersCompensation


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-30
Value1000000.02000000.02000000.01000000.01000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWorkersCompensation100.0100.0100.0100.050.0

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-12000000.0-9000000.0-1000000.000-7000000.0-2000000.00-6000000.0-45000000.0-1000000.0-1000000.0-50000000.0-1000000.0-1000000.000-4000000.0-2000000.0-1000000.00-2000000.0-1000000.0-1000000.0-6000000.0-21000000.0-5000000.0-64000000.0-12000000.0-23000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-12000000.0-9000000.0-1000000.000-7000000.0-2000000.00-6000000.0-45000000.0-1000000.0-1000000.0-50000000.0-1000000.0-1000000.000-4000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociPensionAndOtherPostretirementBenefitPlansForSettlementGainLossBeforeTax100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

mpc:PensionandOtherPostretirementBenefitNet

mpc:PensionandOtherPostretirementBenefitNet


Pensionand
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value124-158.04869485546-196.0345252-27.033327927-86.02730-77.0263029-6.0312628142782-127.045
Percentage of PensionandOtherPostretirementBenefitNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:ProceedsFromDivestitureOfBusinessesNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

mpc:ProceedsFromDivestitureOfBusinessesNetOfTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Proceeds
Period End2021-05-14
Value17220
Percentage of ProceedsFromDivestitureOfBusinessesNetOfTax100.0

mpc:RevenueFromContractWithCustomerExcludingAssessedTaxAndOtherIncome us-gaap:DisposalGroupClassification

mpc:RevenueFromContractWithCustomerExcludingAssessedTaxAndOtherIncome

us-gaap:DiscontinuedOperationsDisposedOfBySale


Revenue
Period End2021-06-302020-06-30
Value30814147
Percentage of RevenueFromContractWithCustomerExcludingAssessedTaxAndOtherIncome100.0100.0

mpc:RevenuesAndOtherIncome

mpc:RevenuesAndOtherIncome


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2982722882181871754815198240803130831202336882861532541231322244518984212361938618354163931728416460167901283015679187582058117240223432548126933233452493226274257032334520711212492025720275
Percentage of RevenuesAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mpc:RevenuesAndOtherIncome us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Revenues
Period End2021-06-302020-06-30
Value147634147
Percentage of RevenuesAndOtherIncome49.527.3

us-gaap:DiscontinuedOperationsHeldforsale


Revenues
Period End2021-03-312020-09-302020-03-312019-09-30
Value5339523555607074
Percentage of RevenuesAndOtherIncome23.329.823.122.7

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312010-12-312010-09-302010-06-30
Value1464332578220.00.00.00.029
Percentage of AssetImpairmentCharges100.0100.0100.0100.00.00.00.00.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:ConsolidationItems

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:MaterialReconcilingItems


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value057000000.0-30000000.0-35000000.0-13000000.0-22000000.0-34000000.0-91000000.0-183000000.0-4000000.0-10000000.00
Percentage of BusinessCombinationAcquisitionRelatedCosts0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


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
Value11080203-162.0-375.0-601.01651.0279341-817.0-3270.0-9.03471642920641-716.01278
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value21322-87.0-63.0-79.0-90.0-103.0-136.0
Percentage of CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.580.580.580.580.580.530.530.530.460.460.46
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests us-gaap:StatementEquityComponents

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests

us-gaap:AdditionalPaidInCapital


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-41.0-35.0-4.0-27.02.02.01.0-59.03.04.00.01.01.04.00.00.01510.0-17.0-3.00.0-40.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.00.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet


Consolidation
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-148.0-124.0-16.06.0-7.0-596.01.02.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Consolidation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-07-302019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-34.0-4.0-1.0-43.08.0-5.01.0-55.0-691.02.04.00.01.01.029261.01913106104-3.00.0-40.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet23.03.20.0268.8133.371.40.0115.90.0200.0200.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Consolidation
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-114.0-120.027-2.0-2.095-1.0-1.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet77.096.8-168.8-33.328.6-15.9-100.0-50.0

us-gaap:CostsAndExpensesRelatedParty

us-gaap:CostsAndExpensesRelatedParty


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value219203198187158195192184183204182149138141150148150122150128124107896182761041121301591031037972768457637080981785876712529
Percentage of CostsAndExpensesRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
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
Value-3000000.0-2000000.0-1000000.0-1000000.00-1000000.0001000000.0001000000.0001000000.001000000.00-1000000.000
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.00.0100.00.00.0100.00.00.0100.00.00.0100.00.0100.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value-14000000.0-11000000.0-10000000.0-9000000.0-10000000.0-8000000.0-6000000.0-5000000.0-7000000.0-4000000.0-5000000.0-9000000.0-8000000.0-9000000.0-9000000.0-9000000.0-9000000.0-9000000.0-10000000.0-10000000.0-8000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses466.7550.01000.0900.00.0800.00.00.0-700.00.00.0-900.00.00.0-900.00.0-900.00.01000.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value01000000.0000000-1000000.00-1000000.0-1000000.0-1000000.00-1000000.0-1000000.0-1000000.0-1000000.00
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0100.00.00.00.00.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value-12000000.0-11000000.0-11000000.0-12000000.0-12000000.0-11000000.0-11000000.0-11000000.0-12000000.0-11000000.0-8000000.0-9000000.0-8000000.0-8000000.0-10000000.0-10000000.0-9000000.0-10000000.0-11000000.0-12000000.0-12000000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0-1100.00.00.00.00.00.00.00.00.0800.00.0800.0800.01000.00.0900.01000.01100.01200.00.0

us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid

us-gaap:OtherPensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value4.010.011346.07.06.03.06.01.06.05.0
Percentage of DefinedBenefitPlanBenefitObligationBenefitsPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value121210.09.09.011139.01211119.08.08.07.08.0
Percentage of DefinedBenefitPlanBenefitObligationBenefitsPaid300.0120.00.081.826.5183.30.0128.6200.0366.70.0150.0800.0133.30.0160.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-31
Value0.022682
Percentage of DefinedBenefitPlanContributionsByEmployer0.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value293335333234333131323425242625252426252424
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
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
Value8.07.08.08.09.08.09.09.010.09.08.07.08.07.07.08.07.08.09.09.08.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value232325252425262727282918181819191819181818
Percentage of DefinedBenefitPlanInterestCost287.5328.6312.5312.5266.7312.5288.9300.0270.0311.1362.5257.1225.0257.1271.4237.5257.1237.5200.0200.0225.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
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
Value182017181818161717171513151311141114171616
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value1176673677457475453475074303076273023202521
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost650.0330.0429.4372.2411.1316.7293.8317.6311.8276.5333.3569.2200.0230.8690.9192.9272.7164.3117.6156.2131.2

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-49000000.0-11000000.0-8000000.0-1000000.000-7000000.0-2000000.00-6000000.0-45000000.0-1000000.0-1000000.0-50000000.0-1000000.0-1000000.000-4000000.0-2000000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
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
Value7.010.08.09.09.09.07.08.08.08.08.07.08.07.06.06.06.07.08.08.08.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value727673708369595760585236353633333531282929
Percentage of DefinedBenefitPlanServiceCost1028.6760.0912.5777.8922.2766.7842.9712.5750.0725.0650.0514.3437.5514.3550.0550.0583.3442.9350.0362.5362.5

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-173.0-75.027-23.0-112.0215-63.04918-100.0105-66.0-57.0-28.01.0-9.0-5.0-8.0-91.0-22.0-12.0-55.0188139-73.059505155-116.0-51.0-2.0-161.054-59.09.0-283.0400
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:CommodityContract, us-gaap:CostOfSales


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-168.0-65.031-23.0-105.0131-62.05015-80.093-69.0-56.0-27.04.01.0-7.0-24.0-82.0-19.0-5.0-61.0179140-70.045486145-114.0-61.0-1.0-170.051-60.07.0-251.0356
Percentage of DerivativeGainLossOnDerivativeNet97.186.7114.8100.093.860.998.4102.083.380.088.6104.598.296.4400.0-11.1140.0300.090.186.441.7110.995.2100.795.976.396.293.598.3119.650.0105.694.4101.777.888.789.0

us-gaap:CommodityContract, us-gaap:Sales


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value-5.0-10.0-5.00.0-7.084-1.0-1.03.0-20.0123.0-1.0-1.0-3.0-10.02.016-9.0-3.0-7.06.09.0-1.0-3.0141910.0-2.010.0-1.09.03.01.02.0-32.044
Percentage of DerivativeGainLossOnDerivativeNet2.913.3-18.5-0.06.239.11.6-2.016.720.011.4-4.51.83.6-300.0111.1-40.0-200.09.913.658.3-10.94.8-0.74.123.73.86.51.7-19.650.0-5.65.6-1.722.211.311.0

us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Discontinued
Period End2021-05-14
Value11680
Percentage of DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax100.0

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Discontinued
Period End2021-05-14
Value8020
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationsDisposedOfBySale


Discontinued
Period End2021-06-302020-06-30
Value11940402
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax100.0100.0

us-gaap:DiscontinuedOperationsHeldforsale


Discontinued
Period End2021-03-312020-09-302020-03-312019-09-30
Value303433332339
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax0.00.00.00.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare


Discontinued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value12.630.360.510.570.290.490.280.39
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare


Discontinued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value12.550.360.510.570.290.490.280.39
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale


Discontinued
Period End2021-06-302020-06-30
Value3726210
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation100.0100.0

us-gaap:DiscontinuedOperationsHeldforsale


Discontinued
Period End2021-03-312020-09-302020-03-312019-09-30
Value69621485
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation0.00.00.00.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value381379379380377350351357318207211219196203185190190191170169171171136137139141121124126130113116116119858789
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value381379379380377350351357318207211219196203185190190191170169171171136137139141121124126130113116116119858789
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfLIFOInventoryLiquidationOnIncome

us-gaap:EffectOfLIFOInventoryLiquidationOnIncome


Effect
Period End2020-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3050.0-54.00.0540.01080.00.0-30.00.00.00.00.00.00.00.00.00.00.00.00.03.00.00.01.01.00.00.0
Percentage of EffectOfLIFOInventoryLiquidationOnIncome100.00.0100.00.0100.00.0100.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0100.00.00.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentDividendsOrDistributions


Equity
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
Value1611421499815517518916316214817412812889136115766192787150
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment us-gaap:IncomeStatementLocation

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment

mpc:IncomeLossfromEquityMethodInvestments


Equity
Period End2021-06-302020-12-312020-09-302020-06-302020-03-31
Value130.00.00.01315
Percentage of EquityMethodInvestmentOtherThanTemporaryImpairment100.00.00.00.0100.0

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss


Fair
Period End2021-06-302020-06-302019-03-312018-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-39.0-6.0-5.03.0-5.0-6.0-12.0-8.0-8.0-14.05.0-11.0
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value-5.0-2.0-11.0-6.013-10.09.0-2.0-5.014-21.0-11.03.00.0-17.01.012-6.0-15.0-12.0-5.0-6.0
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.00.00.0100.00.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.00.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-06-30
Value-39.0-6.0-4.0-12.0-7.014-7.09.0-1.0-6.026-20.0-12.03.0-17.0-22.02.012-22.0-6.0-15.0-12.03.0-5.0-6.0-12.0-14.0-19.05.0110.00.00.02.0-1.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements


Fair
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-3000000.0-3000000.0-2000000.0-2000000.0-1000000.0-1000000.0-1000000.0-2000000.0-1000000.0-2000000.03000000.0-4000000.0-4000000.0-3000000.0-8000000.0-6000000.0-1000000.0-3000000.0-8000000.0-1000000.0-2000000.04000000.02000000.0000
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnDispositionOfAssets


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.03.0641.02.04.0854.04.0214171.03.02.0-2.00.07.05.06.01.00.0251.02.0-1.05.07.02.0111.03.01.01.01.0-1.01751.02.02.05.04.01.03.05.02.0
Percentage of GainLossOnDispositionOfAssets0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Gain
Period End2021-06-30
Value11682
Percentage of GainLossOnDispositionOfAssets0.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.0640.073300.00.00.00.00.00.01.0129-144.01440.00.0
Percentage of GoodwillImpairmentLoss0.0100.00.0100.00.00.00.00.00.00.0100.0100.0100.0100.00.00.0

us-gaap:GoodwillImpairmentLoss us-gaap:IncomeStatementLocation

mpc:ImpairmentExpense


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0640.07330
Percentage of GoodwillImpairmentLoss0.0100.00.0100.0

us-gaap:GoodwillImpairmentLoss us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

mpc:ImpairmentExpense, mpc:RefiningAndMarketing


Goodwill
Period End2020-09-30
Value64
Percentage of GoodwillImpairmentLoss100.0

us-gaap:GoodwillImpairmentLoss us-gaap:StatementBusinessSegments

mpc:Midstream


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312016-12-312016-09-302016-06-302016-03-31
Value0.00.00.018141.00.01.0129
Percentage of GoodwillImpairmentLoss0.00.00.024.70.00.0100.0100.0

mpc:RefiningAndMarketing


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312016-12-312016-09-302016-06-302016-03-31
Value0.0640.055160.00.00.00.0
Percentage of GoodwillImpairmentLoss0.0100.00.075.30.00.00.00.0

us-gaap:GoodwillTransfers us-gaap:BusinessAcquisition

us-gaap:GoodwillTransfers

mpc:MPLXWholesaleDistributionBusiness


Goodwill
Period End2020-09-30
Value64
Percentage of GoodwillTransfers100.0

us-gaap:GoodwillTransfers us-gaap:StatementBusinessSegments

mpc:Midstream


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0-64.00.056
Percentage of GoodwillTransfers0.0-100.00.00.0

mpc:RefiningAndMarketing


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0640.0-56.0
Percentage of GoodwillTransfers0.0100.00.00.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse us-gaap:ConsolidatedEntities, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

srt:Subsidiaries, mpc:ImpairmentExpense, mpc:Midstream


Impairment
Period End2020-12-312020-09-302020-03-31
Value6727350
Percentage of ImpairmentOfLongLivedAssetsHeldForUse100.0100.0100.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse us-gaap:IncomeStatementLocation

mpc:DepreciationAndAmortization


Impairment
Period End2021-06-30
Value43
Percentage of ImpairmentOfLongLivedAssetsHeldForUse0.0

mpc:ImpairmentExpense


Impairment
Period End2020-12-312020-09-302020-06-302020-03-31
Value14636925492
Percentage of ImpairmentOfLongLivedAssetsHeldForUse217.91366.70.0140.6

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

mpc:ImpairmentExpense, mpc:RefiningAndMarketing


Impairment
Period End2020-12-312020-09-302020-03-31
Value44342142
Percentage of ImpairmentOfLongLivedAssetsHeldForUse65.71266.740.6

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value8214234324371192318185254
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Income
Period End2021-06-302020-06-30
Value8214192
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0

us-gaap:DiscontinuedOperationsHeldforsale


Income
Period End2021-03-312020-09-302020-03-312019-09-30
Value234371318254
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value9391102117105-1210.064124107991119680868284835751-208.0-50.0223023201532295735209.07.00.08.07.09.02.09.015179.0141818
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate

us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value125-29.0-297.0133-2622.0287361
Percentage of IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationMinorityInterestIncomeExpense

us-gaap:IncomeTaxReconciliationMinorityInterestIncomeExpense


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value100-31.063-81.0-101.010968
Percentage of IncomeTaxReconciliationMinorityInterestIncomeExpense100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses

us-gaap:IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses


Income
Period End2020-09-302020-06-302020-03-312019-06-30
Value130.011570.0
Percentage of IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses100.00.0100.00.0

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncomeTaxReconciliationOtherAdjustments


Income
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-30
Value-12.03.0-1.0111415
Percentage of IncomeTaxReconciliationOtherAdjustments100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value1315-59.033-244.06345
Percentage of IncomeTaxReconciliationStateAndLocalIncomeTaxes100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2656182110911202-1767.0-3453.0560645-186.01483-2482.0-85.01224-1455.021608627.0-215.0748-395.01442-810.0-693.0-1116.0348-939.0-1865.0-676.0-17.01011-564.0239-702.02491-63.0862-1690.0-332.0850663292991018-43.0
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value34-54.063522-185.013351071458719
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalizedAdjustment

us-gaap:InterestCostsCapitalizedAdjustment


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
Value1917263235364645353225211618161418151715161610.0118.08.07.07.07.06.0137.04.04.06.0293630
Percentage of InterestCostsCapitalizedAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.020-1.010.09.0267.0161310.09.09.07.04.07.06.07.0
Percentage of InterestExpenseOther0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidCapitalized us-gaap:ConsolidationItems

us-gaap:InterestPaidCapitalized

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value161421292729403234312521161816131412161515171110.08.08.07.07.07.06.0137.04.0
Percentage of InterestPaidCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryLIFOReserveEffectOnIncomeNet

us-gaap:InventoryLIFOReserveEffectOnIncomeNet


Inventory
Period End2020-09-30
Value530
Percentage of InventoryLIFOReserveEffectOnIncomeNet100.0

us-gaap:InventoryLIFOReservePeriodCharge

us-gaap:InventoryLIFOReservePeriodCharge


Inventory
Period End2020-09-302020-06-302020-03-312019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-530.0-1480.032200.00.00.00.00.00.00.00.0-385.0153700.00.0
Percentage of InventoryLIFOReservePeriodCharge100.0100.0100.00.00.00.00.00.00.00.00.0100.0100.0100.00.00.0

us-gaap:InventoryLIFOReservePeriodCharge us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Inventory
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value5301480-3220.00.00.0
Percentage of InventoryLIFOReservePeriodCharge-100.0-100.0-100.00.00.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-31
Value2.01.00.01.02.06.010.0129.09.016262520117.04.05.01.03.01.01.01.02.02.01.02.02.01.02.02.02.03.02.02.01.01.01.01.01.01.0
Percentage of InvestmentIncomeInterest100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermPurchaseCommitmentAmount

us-gaap:LongTermPurchaseCommitmentAmount


Long
Period End2021-06-302021-03-312020-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1663961253722378-679.0-500.01700-200.0100-300.02000-100.0-2400.024001800
Percentage of LongTermPurchaseCommitmentAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyDamagesPaidValue

us-gaap:LossContingencyDamagesPaidValue


Loss
Period End2020-12-31
Value4000000.0
Percentage of LossContingencyDamagesPaidValue100.0

us-gaap:LossContingencyDamagesSoughtValue

us-gaap:LossContingencyDamagesSoughtValue


Loss
Period End2020-12-312020-09-302020-07-31
Value0.0187187
Percentage of LossContingencyDamagesSoughtValue0.0100.0100.0

us-gaap:NetCashProvidedByUsedInDiscontinuedOperations

us-gaap:NetCashProvidedByUsedInDiscontinuedOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-156.0189380442342448389
Percentage of NetCashProvidedByUsedInDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-5652000000.0-180000000.0-370000000.0-668000000.0-899000000.0-985000000.0-1550000000.0
Percentage of NetCashProvidedByUsedInInvestingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1536265948879196-1216.02020
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToNonredeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNonredeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value269286269257246-1004.0-201.0252240246224185160182938574554658-27.0-79.0-19.010.013
Percentage of NetIncomeLossAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value21202020212020202120201920161616171616169.00.00.00.00.0
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToRedeemableNoncontrollingInterest us-gaap:StatementEquityComponents

mpc:RedeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2120202120202120
Percentage of NetIncomeLossAttributableToRedeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic

us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value298-476.0-40.0-1257.0-183.0-9552.0258841
Percentage of NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value878144-629.0255-10238.01347134623911759221215219210998855785273203774-78.0168958
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value269286257246-1004.0252240246224185160182938574554658-27.0-79.0-19.010.0
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest3.1650.0-40.996.59.818.717.8102.919.120.113.283.14.48.613.364.716.828.6-3.5101.3-11.31.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value8512-242.0-886.09.0-9234.010951106-7.09517371055372016903483302271458011.0187948
Percentage of NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest96.9-550.0140.93.590.281.382.2-2.980.979.986.816.995.691.486.735.383.271.4103.5-1.3111.399.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent


Net
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value569.06.00.0-3.0-2.06.03.0-3.0
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-12000000.0-10000000.0-11000000.0-11000000.0-12000000.0-11000000.0-11000000.0-11000000.0-12000000.0-11000000.0-9000000.0-9000000.0-9000000.0-9000000.0-11000000.0-10000000.0-10000000.0-11000000.0-12000000.0-13000000.0-12000000.0-12000000.0-12000000.0-13000000.0-12000000.0-13000000.0-12000000.0-13000000.0-12000000.0-13000000.0-12000000.0-13000000.0-11000000.0-13000000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value01000000.0000000-1000000.00-1000000.0-1000000.0-1000000.00-1000000.0-1000000.0-1000000.0-1000000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax-0.0-10.0-0.0-0.0-0.0-0.0-0.0-0.011.1-0.011.111.19.1-0.010.09.18.37.7

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-12000000.0-11000000.0-11000000.0-11000000.0-12000000.0-11000000.0-11000000.0-11000000.0-12000000.0-11000000.0-8000000.0-9000000.0-8000000.0-8000000.0-10000000.0-10000000.0-9000000.0-10000000.0-11000000.0-12000000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax100.0110.0100.0100.0100.0100.0100.0100.0100.0100.088.9100.088.988.990.9100.090.090.991.792.3

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value131-2.0-185.0-2.0-8.0-4.0-105.0-51.0-5.0-1.017331.0-2.0-21.0-3.02.0-1.093-6.0-1.00.0-8.0-6.02.0-2.0-88.0-24.0-16.0-42.012148776
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-65.00.00.0-2.0-93.00.01.00.0280.0-1.00.0-38.00.00.00.0630.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax35.1-0.0-0.050.088.6-0.0-20.0-0.0164.70.0-100.0-0.0181.0-0.00.0-0.067.7-0.0

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value134-2.0-124.0-2.0-8.0-2.0-13.0-51.0-6.0-1.0-21.0332.00.014-3.02.0-1.030-6.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax102.3100.067.0100.0100.050.012.4100.0120.0100.0-123.5100.0200.0-0.0-66.7100.0100.0100.032.3100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value440.0-69.00.03.01.0-32.0-23.03.00.013
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.00.0100.00.0100.0100.0100.0100.0100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-15000000.0-14000000.0-10000000.0-10000000.0-10000000.0-9000000.0-6000000.0-5000000.0-6000000.0-4000000.0-5000000.0-8000000.0-8000000.0-9000000.0-8000000.0-9000000.0-8000000.0-9000000.0-11000000.0-10000000.0-8000000.0-11000000.0-14000000.0-15000000.0-14000000.0-16000000.0-13000000.0-13000000.0-13000000.0-14000000.0-14000000.0-15000000.0-18000000.0-22000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-3000000.0-2000000.0-1000000.0-1000000.00-1000000.0001000000.0001000000.0001000000.001000000.00-1000000.00
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax20.014.310.010.0-0.011.1-0.0-0.0-16.7-0.0-0.0-12.5-0.0-0.0-12.5-0.0-12.5-0.09.1-0.0

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-12000000.0-12000000.0-9000000.0-9000000.0-10000000.0-8000000.0-6000000.0-5000000.0-7000000.0-4000000.0-5000000.0-9000000.0-8000000.0-9000000.0-9000000.0-9000000.0-9000000.0-9000000.0-10000000.0-10000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax80.085.790.090.0100.088.9100.0100.0116.7100.0100.0112.5100.0100.0112.5100.0112.5100.090.9100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:PensionPlansDefinedBenefit, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value10.01.02.02.00.0-1.0-3.00.00.0-2.0-5.0110.01.018-1.01.00.0-1.01.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax us-gaap:StatementEquityComponents

mpc:AccumulatedGainLossNetWorkersCompensation


Other
Period End2021-03-312020-09-302019-09-30
Value-1.00.00.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax-100.00.00.0

us-gaap:OtherComprehensiveIncomeLossTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossTax

mpc:AccumulatedGainLossOther


Other
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value-2.00.0-1.00.0-1.0
Percentage of OtherComprehensiveIncomeLossTax100.00.0100.00.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value613.05.00.01.0-14.00.0
Percentage of OtherComprehensiveIncomeLossTax-3050.00.00.0-0.00.00.0-0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-2.0-3.0-2.0-3.0-3.0-3.0-3.0
Percentage of OtherComprehensiveIncomeLossTax100.00.00.0300.00.00.0300.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-28.0-51.0146103-41.0-17.0-2.078243-39.07934-42.01.0-103.0-48.0-81.030-35.0-41.0-37.017150.0-4.0-42.0-67.02717417.0-22.02.0-8.0-18.0-13.050341.012-17.01.0507.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncome

us-gaap:OtherOperatingIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value11977492267716731303580474530101928443724929284117252954122124128.0181418184.06.010.0171319118.010.0
Percentage of OtherOperatingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PartnersCapitalAccountRedemptions us-gaap:ConsolidatedEntities

us-gaap:PartnersCapitalAccountRedemptions

srt:Subsidiaries


Partners
Period End2020-07-31
Value340
Percentage of PartnersCapitalAccountRedemptions100.0

us-gaap:PartnersCapitalAccountUnitsRedeemed us-gaap:ConsolidatedEntities

us-gaap:PartnersCapitalAccountUnitsRedeemed

srt:Subsidiaries


Partners
Period End2020-07-31
Value18
Percentage of PartnersCapitalAccountUnitsRedeemed100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-30
Value-122000000.0-98000000.0-44000000.00-9000000.0-10000000.0-31000000.0-13000000.0-18000000.0-19000000.0-9000000.0-23000000.0-26000000.0-11000000.0-84000000.0-74000000.0-67000000.0-23000000.0-50000000.0-36000000.0-19000000.0-7000000.0-29000000.0-11000000.0-10000000.0-31000000.0-57000000.0-4000000.0-46000000.0-28000000.0-1000000.00-9000000.0-13000000.00-1000000.01000000.0-3000000.0-1000000.0-3000000.05000000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-312020-12-31
Value1648169
Percentage of PaymentsForRestructuring100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Payments
Period End2021-06-302021-03-312020-12-31
Value5.032134
Percentage of PaymentsForRestructuring31.266.779.3

us-gaap:FacilityClosing


Payments
Period End2021-06-302021-03-312020-12-31
Value111635
Percentage of PaymentsForRestructuring68.833.320.7

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value2.0240.0220.00.0330.00.0535.07.00.0210.010.00.01.0170.00.04.03.0190.00.02.00.00.02.00.06.00.00.00.0
Percentage of PaymentsOfDebtIssuanceCosts100.0100.00.0100.00.00.0100.00.00.0100.0100.0100.00.0100.00.0100.00.0100.0100.00.00.0100.0100.0100.00.00.0100.00.00.0100.00.0100.00.00.00.0

us-gaap:PaymentsToAcquireEquityMethodInvestments us-gaap:ConsolidationItems

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:OperatingSegments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value6251495321416927219727032518710477417553111566486910520925677210742754-177.0-41.0-123.0-38.0-75.0-6.0-5.0-16.0-5.00.0
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsToFundLongtermLoansToRelatedParties

us-gaap:PaymentsToFundLongtermLoansToRelatedParties


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6251495321416927219727032518710477417553111566486910566110721074272177411233875172131154.07.0
Percentage of PaymentsToFundLongtermLoansToRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value29332030332130032029531031532530420519919518918116615815314012812111119.09.07.08.06.06.06.06.05.04.00.00.00.00.0
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties

us-gaap:ProceedsFromCollectionOfLongtermLoansToRelatedParties


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.01.0154.041772317562.00.01.0150.01.0418.0156.0191.00.00.00.03.01.06.00.03.00.01.048171114913.00.0
Percentage of ProceedsFromCollectionOfLongtermLoansToRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromDivestitureOfBusinesses us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:DiscontinuedOperationsDisposedOfBySale, mpc:Speedway


Proceeds
Period End2021-05-14
Value21380
Percentage of ProceedsFromDivestitureOfBusinesses100.0

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromIssuanceOfCommercialPaper


Proceeds
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value136560490.00.00.00.00.00.00.03002003004992640.00.00.00.0
Percentage of ProceedsFromIssuanceOfCommercialPaper100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value30235.00.02.04.04.03.01.02.00.03.09.012197.010.010.03.06.01.01.04.03.05.0215.04.04.013113.06.02854225.0270.0
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value399067853870354054224250500581053602604274111250.096102504200.022411500.012858624650.00.052889026330.02700.00.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.00.0100.00.00.00.00.0

us-gaap:ProceedsFromLongTermLinesOfCredit us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument

us-gaap:ProceedsFromLongTermLinesOfCredit

srt:Subsidiaries, mpc:MPLXRevolvingCreditFacilitydueJuly2024


Proceeds
Period End2021-03-312020-12-31
Value1910820
Percentage of ProceedsFromLongTermLinesOfCredit100.0100.0

us-gaap:ProceedsFromLongTermLinesOfCredit us-gaap:DebtInstrument

mpc:NewMPCFiveYearRevolver


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value23257240.015002000
Percentage of ProceedsFromLongTermLinesOfCredit121.788.40.00.00.0

mpc:TradeReceivablesSecuritizationdueJuly2021


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value2550232550250925
Percentage of ProceedsFromLongTermLinesOfCredit133.5283.50.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-18.0-18.0-5.0-10.0-5.0-15.0-5.0-8.0-30.0-26.0-6.0-3.0-11.0-8.0-3.0-27.0-11.0-6.01.0-22.01.02.02.07.06.0121.04.05.09.04.02.03.010.09.03.0-9.03.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets

us-gaap:ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.07677-6.0235683119.024355.07.07.01527352.0139.02.0777.02.01.0118.02.0152.04.03.06.03.01.0464.02.03.08.08.012574610.0
Percentage of ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfCommercialPaper

us-gaap:RepaymentsOfCommercialPaper


Repayments
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value308153560.00.00.00.00.00.00.0300197300687760.00.00.00.0
Percentage of RepaymentsOfCommercialPaper100.0100.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:RepaymentsOfDebt us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument

us-gaap:RepaymentsOfDebt

srt:Subsidiaries, mpc:MPLXTermLoan


Repayments
Period End2020-09-30
Value1000
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfDebt us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

srt:ParentCompany, mpc:SeniorNotesDueApril2024, us-gaap:SeniorNotes


Repayments
Period End2021-06-30
Value300
Percentage of RepaymentsOfDebt0.0

srt:ParentCompany, mpc:SeniorNotesDueDecember2020, us-gaap:SeniorNotes


Repayments
Period End2020-11-15
Value650
Percentage of RepaymentsOfDebt0.0

srt:ParentCompany, mpc:SeniorNotesDueMarch2021, us-gaap:SeniorNotes


Repayments
Period End2021-03-01
Value1000
Percentage of RepaymentsOfDebt0.0

srt:ParentCompany, mpc:SeniorNotesDueOctober2022, us-gaap:SeniorNotes


Repayments
Period End2020-10-01
Value475
Percentage of RepaymentsOfDebt0.0

srt:Subsidiaries, mpc:FloatingRateSeniorNotesDueSeptember2021, us-gaap:SeniorNotes


Repayments
Period End2020-09-30
Value1000
Percentage of RepaymentsOfDebt100.0

srt:Subsidiaries, mpc:SeniorNotesDueJanuary2025, us-gaap:SeniorNotes


Repayments
Period End2021-01-15
Value750
Percentage of RepaymentsOfDebt0.0

srt:Subsidiaries, mpc:SeniorNotesDueMay2024, us-gaap:SeniorNotes


Repayments
Period End2020-09-30
Value450
Percentage of RepaymentsOfDebt45.0

us-gaap:RepaymentsOfDebt us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

srt:ParentCompany, mpc:SeniorNotesDueDecember2020, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2020-11-15
Value650
Percentage of RepaymentsOfDebt0.0

srt:ParentCompany, mpc:SeniorNotesDueOctober2022, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2020-10-01
Value475
Percentage of RepaymentsOfDebt0.0

srt:Subsidiaries, mpc:FloatingRateSeniorNotesDueSeptember2022, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-09-03
Value1000
Percentage of RepaymentsOfDebt0.0

srt:Subsidiaries, mpc:SeniorNotesDueJanuary2025, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-01-15
Value750
Percentage of RepaymentsOfDebt0.0

srt:Subsidiaries, mpc:SeniorNotesDueOctober2022, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2020-10-15
Value300
Percentage of RepaymentsOfDebt0.0

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value64436613523637564867152151954385085203126311316.052641722576.0207157506461114517936.06.04215166.0206.05.06.05.05.05.06.03.03.03.03.0
Percentage of RepaymentsOfLongTermDebtAndCapitalSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument

us-gaap:RepaymentsOfLongTermLinesOfCredit

srt:Subsidiaries, mpc:MPLXRevolvingCreditFacilitydueJuly2024


Repayments
Period End2021-03-312020-12-31
Value1250740
Percentage of RepaymentsOfLongTermLinesOfCredit100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit us-gaap:DebtInstrument

mpc:NewMPCFiveYearRevolver


Repayments
Period End2021-03-312020-12-312020-09-30
Value10247240.0
Percentage of RepaymentsOfLongTermLinesOfCredit82.098.00.0

mpc:TradeReceivablesSecuritizationdueJuly2021


Repayments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value2550232550250925
Percentage of RepaymentsOfLongTermLinesOfCredit204.0314.20.00.00.0

us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated

us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated


Restructuring
Period End2020-09-30
Value2050.0
Percentage of RestructuringAndRelatedCostNumberOfPositionsEliminated100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2020-12-312020-09-30
Value19348
Percentage of RestructuringCharges100.0100.0

us-gaap:RestructuringCharges us-gaap:ConsolidatedEntities, us-gaap:RestructuringCostAndReserve

srt:Subsidiaries, us-gaap:EmployeeSeverance


Restructuring
Period End2020-09-30
Value36
Percentage of RestructuringCharges10.3

us-gaap:RestructuringCharges us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Restructuring
Period End2020-12-312020-09-30
Value-19.0-348.0
Percentage of RestructuringCharges-100.0-100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2020-09-30
Value159
Percentage of RestructuringCharges45.7

us-gaap:FacilityClosing


Restructuring
Period End2020-09-30
Value189
Percentage of RestructuringCharges54.3

us-gaap:RestructuringReserveAccrualAdjustment1

us-gaap:RestructuringReserveAccrualAdjustment1


Restructuring
Period End2020-12-31
Value19
Percentage of RestructuringReserveAccrualAdjustment1100.0

us-gaap:RestructuringReserveAccrualAdjustment1 us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2020-12-31
Value14
Percentage of RestructuringReserveAccrualAdjustment173.7

us-gaap:FacilityClosing


Restructuring
Period End2020-12-31
Value5.0
Percentage of RestructuringReserveAccrualAdjustment126.3

us-gaap:RestructuringReserveSettledWithoutCash2 us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveSettledWithoutCash2

us-gaap:FacilityClosing


Restructuring
Period End2020-09-30
Value51
Percentage of RestructuringReserveSettledWithoutCash2100.0

us-gaap:RevenueFromRelatedParties

us-gaap:RevenueFromRelatedParties


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value11433835106165210186186186182201199172171157147154572.02.01.02.01.02.01.03.02.02.02.02.03.01.02.02.02823162733
Percentage of RevenueFromRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312012-09-302012-06-302012-03-31
Value2000000.01000000.01000000.001000000.002000000.01000000.0001000000.001000000.01000000.001000000.001000000.001000000.01000000.01000000.00-1000000.01000000.01000000.0002000000.01000000.001000000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.00.0100.00.0100.0100.00.00.0100.00.0100.0100.00.0100.00.0100.00.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value4717193016301128289151424185.01.07.00.05.0-2.0-2.04.02.0-1.0174.02.0-2.09.010.01.03.0245221-1.0332.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Stock
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value2.02.03.01.02.02.0-1.06.03.04.01.03.04.00.00.00.00.00.00.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation4.310.510.06.26.718.2-3.62.120.028.64.216.780.00.00.00.00.0-0.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationForfeited us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationForfeited

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value5.01.01.04.02.0-3.010.03.04.02.08.04.01.02.09.03.03.01.03.03.00.01.06.04.01.02.05.05.00.03.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationForfeited100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value5018183117311932286141827197.010.010.03.06.01.01.04.03.05.0215.04.03.01410.04.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

srt:Subsidiaries, us-gaap:SubsequentEvent


Stock
Period End2021-07-312021-04-302021-01-31
Value4.07.02.0
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312016-12-312016-09-302016-06-302016-03-312014-12-312014-09-302014-06-302014-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.0-1.01.04.01.0-1.0-10.01.08.0-5.0-18.00.00.09.00.00.00.09.013667.0-385.0-251.02582-478.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Stockholders
Period End2020-09-302020-06-302020-03-312014-12-312014-09-302014-06-302014-03-312012-09-302012-06-302012-03-31
Value1.0-1.01.0-18.00.00.09.00.00.00.0
Percentage of StockholdersEquityOther100.0100.0100.0100.00.00.0100.00.00.00.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes

us-gaap:TaxesExcludingIncomeAndExciseTaxes


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1891621221782142512011901741862091231221031151161151081031121111099595104971028698104818288896666647449635968575963
Percentage of TaxesExcludingIncomeAndExciseTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxesExcludingIncomeAndExciseTaxes us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale


Taxes
Period End2021-06-302020-06-30
Value2444
Percentage of TaxesExcludingIncomeAndExciseTaxes12.720.6

us-gaap:DiscontinuedOperationsHeldforsale


Taxes
Period End2021-03-312020-09-302020-03-312019-09-30
Value51495349
Percentage of TaxesExcludingIncomeAndExciseTaxes31.527.521.125.8

us-gaap:TemporaryEquityOtherChanges us-gaap:StatementEquityComponents

us-gaap:TemporaryEquityOtherChanges

mpc:RedeemableNoncontrollingInterest


Temporary
Period End2021-06-30</