MMC


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

Table of contents



us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:GainLossOnInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:OperatingExpenses

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
dei:LegalEntity
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:Subsegments
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

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

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ReceivablesNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:EquitySecuritiesFvNi
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:DebtCurrent

us-gaap:DividendsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtAndCapitalLeaseObligations
us-gaap:BalanceSheetLocation
us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:UnrecognizedTaxBenefits
us-gaap:ValuationAllowanceByDeferredTaxAsset
us-gaap:DeferredTaxAssetsValuationAllowance

mmc:AverageSharePriceCommonStock

mmc:BusinessCombinationConsiderationTransferredAssetsAcquired

mmc:BusinessCombinationContingentandDeferredConsideration
us-gaap:BusinessAcquisition

mmc:DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
mmc:DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations
us-gaap:RetirementPlanType

mmc:EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities

mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedinEarningsNet
us-gaap:FairValueByLiabilityClass
mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityOtherAdjustments

mmc:IncreaseDecreaseinOperatingLeaseLiabilities

mmc:IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
mmc:InterestIncomeFiduciaryAssets
us-gaap:StatementBusinessSegments
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
mmc:LeaseObligationsPercent

mmc:LeasesRightOfUseAssetAmortization

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansNetofTax

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansTax

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandPostretirementBenefitPlansBeforeTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax

mmc:PaymentsForPreviousAcquisitionContingentConsideration
us-gaap:BusinessAcquisition

mmc:PaymentsForPreviousAcquisitionDeferredConsideration
us-gaap:BusinessAcquisition

mmc:PaymentsforAcquisitionsDeferredandContingentConsideration

mmc:PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense

mmc:ProceedsFromPreviousDispositionContingentConsideration
us-gaap:StatementEquityComponents
mmc:StockIssuedDuringPeriodValueSharebasedCompensationandEmployeeStockPurchasePlanAndRelatedTaxDeficiency
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

us-gaap:BusinessAcquisitionsProFormaRevenue

us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanOtherCosts
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedContributionPlanCostRecognized

us-gaap:Depreciation
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:DividendsShareBasedCompensationCash

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent

us-gaap:EquitySecuritiesFvNiRealizedGainLoss

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FinitelivedIntangibleAssetsAcquired1
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GoodwillOtherIncreaseDecrease
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:InvestmentType

us-gaap:IncomeTaxReconciliationChangeInEnactedTaxRate

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInReceivables

us-gaap:InvestmentIncomeInterest

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
us-gaap:StatementEquityComponents
us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:StatementEquityComponents

us-gaap:OtherCostAndExpenseOperating

us-gaap:PaymentsForProceedsFromInvestments

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForRepurchaseOfEquity

us-gaap:PaymentsForRestructuring
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries

us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToMinorityShareholders
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOrSaleOfEquity

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:RepaymentsOfDebt
us-gaap:LongtermDebtType
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RestructuringCharges
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:Subsegments
us-gaap:BusinessAcquisition
us-gaap:RestructuringReserveSettledWithoutCash2
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveTranslationAdjustment
us-gaap:RestructuringCostAndReserve

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod

us-gaap:ShortTermLeaseCost

us-gaap:StockIssued1

us-gaap:SubleaseIncome
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:VariableLeaseCost

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

dei:EntityNumberOfEmployees

mmc:AccruedFeesandOtherRevenueReceivableGrossCurrent

mmc:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansAdjustmentTax

mmc:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

mmc:AdvancedPremiumsandClaimsReceivableGrossCurrent
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
mmc:BusinessCombinationContingentConsiderationAssetFairValueDisclosure
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
mmc:BusinessCombinationContingentConsiderationLiabilityFairValueDisclosure
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:BusinessAcquisition
mmc:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAssetsIncludingGoodwill

mmc:CashandInvestmentsHeldinFiduciaryCapacityNoncurrent

mmc:DeferredTaxAssetsDeferredIncomeNetOfValuationAllowance

mmc:DeferredTaxAssetsNetNetOfValuationAllowance

mmc:DeferredTaxAssetsOperatingLossCarryforwardsDomesticNetOfValuationAllowance

mmc:DeferredTaxAssetsOperatingLossCarryforwardsForeignNetofValuationAllowance

mmc:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndPostretirementBenefitsNetofValuationAllowance

mmc:DeferredTaxAssetsTaxDeferredExpenseOtherNetOfValuationAllowance

mmc:DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsNetofValuationAllowance
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
mmc:DefinedBenefitPlanCumulativeEmployerContributionsInExcessOfNetPeriodicCost

mmc:DefinedContributionPlanEmployeeStockOwnershipPlanESOPSharesinESOPValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
mmc:FiduciaryAssetsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

mmc:FiduciaryLiabilitiesGrossNoncurrent

mmc:FiniteLivedIntangibleAssetExpectedAmortizationafterYearFour

mmc:LesseeOperatingLeaseLeaseNotyetCommencedAmount
us-gaap:BalanceSheetLocation
mmc:LiabilitiesForErrorsAndOmissionsCurrent

mmc:LiabilityForErrorsAndOmissions

mmc:LiabilityForErrorsAndOmissionsCurrentAndNoncurrent

mmc:PaymentofContingentConsideration

mmc:PaymentsForPreviousAcquisitionDeferredandContingentConsideration

mmc:PercentageOfOpenOffices
us-gaap:LitigationCase
mmc:ReinsurancePolicyAmountReinsuredByThirdParty

mmc:StockholdersEquitySubtotalBeforeTreasuryStock

mmc:UncollectedPremiumsandClaimsNetofRelatedPayables

us-gaap:AccountsReceivableGrossCurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType, us-gaap:StatementEquityComponents
us-gaap:AccumulatedOtherComprehensiveIncomeLossBeforeTax1

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization

us-gaap:CapitalizedComputerSoftwareNet
us-gaap:CapitalizedContractCost
us-gaap:CapitalizedContractCostNet
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability
us-gaap:DebtInstrument
us-gaap:DebtInstrumentUnusedBorrowingCapacityAmount
us-gaap:Range
us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

us-gaap:DeferredIncomeTaxAssetsNet
us-gaap:BalanceSheetLocation

us-gaap:DeferredIncomeTaxLiabilities
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxLiabilitiesDeferredExpense

us-gaap:DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings
us-gaap:IncomeTaxAuthority
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear

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

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EquityMethodInvestments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:InvestmentType

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
us-gaap:FairValueByLiabilityClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:RetirementPlanName, us-gaap:RetirementPlanSponsorLocation
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:InvestmentsFairValueDisclosure

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCredit
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:LossContingencyAccrualAtCarryingValue

us-gaap:LossContingencyEstimateOfPossibleLoss
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherAssetsFairValueDisclosure
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherIntangibleAssetsNet

us-gaap:OtherReceivablesGrossCurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringAndRelatedCostCostIncurredToDate1
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:RestructuringReserve
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:Subsegments
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType
us-gaap:ShortTermDebtType, us-gaap:SubsequentEventType
us-gaap:FairValueByMeasurementBasis
us-gaap:ShorttermDebtFairValue
us-gaap:StatementClassOfStock
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Allocated Share Based Compensation Expense
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Property Plant And Equipment Net
Current Assets
Other Assets Current
NonCurrent Assets
Deferred Income Tax Assets Net
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Common Stock Shares Outstanding
DividendsAndRepurchase
Payments Of Dividends Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockSharesOutstanding ▁▂▂▁▁▁▁▁▁▁▁▁▁▂▂▂▂▃▃▃▃▄▄▄▅▆▆▇▇█████▇▇▇▇▆▆▇█▇▇▇▇507.0509.0508.0507.0506.0506.0504.0505.0507.0507.0504.0504.0505.0508.0509.0511.0513.0515.0514.0516.0519.0521.0522.0522.0531.0538.0540.0542.0546.0549.0547.0547.0549.0550.0545.0544.0544.0546.0539.0538.0541.0548.0541.0543.0542.0541.0
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█513.0514.0NA512.0511.0510.0NA511.0512.0511.0NA510.0512.0514.0NA519.0520.0522.0NA523.0525.0526.0NA533.0541.0545.0NA551.0556.0556.0NA558.0559.0557.0NA552.0553.0551.0NA549.0555.0552.0NA548.0545.0536.0
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█508.0509.0NA507.0506.0505.0NA506.0507.0505.0NA504.0507.0508.0NA512.0514.0515.0NA518.0521.0521.0NA528.0535.0539.0NA544.0549.0548.0NA549.0551.0548.0NA544.0545.0542.0NA540.0547.0544.0NA543.0541.0533.0
us-gaap:EarningsPerShareBasic ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▃▃▄▄▃▃▄▄▃▂▃▄▃▂▃▃▃▂▃▃▂▂▂▂1.611.930.740.621.131.490.770.60.661.420.30.551.051.360.060.770.981.10.850.730.910.920.720.610.780.890.540.550.780.810.550.460.710.750.48000000000000020.440.60.640.470.240.510.590.37000000000000010.30.430.46
us-gaap:EarningsPerShareDiluted ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▃▃▄▄▃▃▄▄▃▂▃▄▃▂▃▃▃▂▃▃▂▂▂▂1.61.910.730.621.121.480.760.590.651.40.30.541.041.340.060.760.961.090.840.730.90.910.710.610.770.880.540.540.770.80.540.450.690.740.470.440.590.630.459999999999999960.240.50.580.37000000000000010.30.430.45
  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██▆▅▅▇▅▅▆▅▄▃▄▅▄▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▁▂▂▁▁5033.05098.04434.03987.04219.04673.04281.03991.04374.04096.03730.03519.03746.04012.03701.03350.03508.03515.03375.03145.03389.03346.03348.03124.03237.03224.03257.03151.03311.03271.03125.02941.03098.03133.03008.02856.0NANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,mmc:ConsultingSegment███▅▄▆█▆▇▅▇▅▅▅▆▄▄▃▄▃▃▃▄▃▃▂▄▃▃▂▃▂▂▁▂▂1892.01873.01902.01696.01616.01762.01885.01785.01800.01673.01805.01656.01650.01668.01739.01587.01592.01526.01582.01513.01539.01478.01616.01540.01487.01421.01566.01541.01520.01432.01492.01437.01410.01362.01439.01405.0NANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,mmc:RiskandInsuranceServicesSegment██▅▄▆▇▅▄▅▅▃▃▄▅▃▂▃▃▂▂▃▃▂▂▂▂▂▂▂▃▂▁▂▂▁▁3141.03225.02532.02291.02603.02911.02396.02206.02574.02423.01925.01863.02096.02344.01962.01763.01916.01989.01793.01632.01850.01868.01732.01584.01750.01803.01691.01610.01791.01839.01633.01504.01688.01771.01569.01451.0NANANANANANANANANANA
  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 _ _▇█▃▃▅▆▃▂▃▅▃▃▄▅▄▃▄▄▃▃▄▄▃▂▃▄▃▂▃▃▂▂▃▃▂▁▂▂▂▁▂▂▁1228.01358.0571.0540.0885.01070.0592.0467.0680.0938.0621.0541.0691.0908.0686.0597.0764.0809.0633.0572.0726.0733.0594.0461.0629.0735.0536.0445.0647.0673.0489.0404.0577.0607.0406.0378.0518.0527.0391.0310.0465.0472.0325.0NANANA
  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:AllocatedShareBasedCompensationExpense █▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▄▂▂▂▂▁▁▁▁▁▁▁▁▂▂▂▁▃▃▃▃▃▃▃▃▃▃▃▄▃98.078.071.072.075.072.068.067.060.057.047.047.049.050.038.036.047.028.021.023.023.020.018.016.017.016.015.019.015.026.026.030.020.034.035.037.039.041.041.041.043.040.044.040.048.042.0
us-gaap:ComprehensiveIncomeNetOfTax ██▆▇█▄▅▄▆▇▄▄▅█▆▆██▂▆▅▇▅▅▇▅▁▄▆▆█▆▅▆▄▆▅▆▁▃▆▆▄▆▄▅864.0896.0412.0750.0837.0-38.0267.0-101.0395.0773.0-6.053.0171.0842.0546.0374.0797.0825.0-368.0391.0268.0604.0277.0124.0586.0239.0-658.09.0532.0356.0895.0475.0332.0341.0-43.0351.0237.0512.0-599.0-125.0387.0442.041.0436.076.0173.0
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▄█▃▂▄▇▃▂▆▆▄▂▃▄▁▂▄▅▃▃▄▅▄▄▆▇▃▄▄▇▂▄▄▆▂▄▄▄▂▃▄▄▂▂▄▂7.015.05.04.08.013.05.03.012.011.06.03.05.06.01.04.06.09.05.05.08.09.06.08.010.013.05.07.07.013.04.06.07.011.04.06.08.07.04.05.07.06.03.03.06.04.0
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ██▆▇█▄▅▃▆▇▄▄▅█▆▆██▂▆▅▇▅▅▇▅▁▄▆▆█▆▅▅▄▆▅▆▁▃▆▆▄▆▄▅871.0911.0417.0754.0845.0-25.0272.0-98.0407.0784.00.056.0176.0848.0547.0378.0803.0834.0-363.0396.0276.0613.0283.0132.0596.0252.0-653.016.0539.0369.0899.0481.0339.0352.0-39.0357.0245.0519.0-595.0-120.0394.0448.044.0439.082.0177.0
us-gaap:GainLossOnInvestments ▇▆▇▄▃▅▅▆▆▅▆▁▇▅▆▅▅▅▅▅▅▅▅█▅▅▅▇▅▆▆▆▇▇▅▅▅▇▅▅▅▇▇▅▆▆19.011.025.0-14.0-31.0-2.02.07.08.05.012.0-52.028.00.012.0-2.05.00.02.00.01.0-3.0-1.037.00.02.00.027.0-3.013.011.014.023.021.05.0-5.04.020.0-4.0-1.0-6.019.019.0-4.017.08.0
us-gaap:IncomeLossFromContinuingOperations ▁█820.0983.0NA316.0572.0754.0391.0303.0332.0716.0153.0276.0531.0690.027.0393.0501.0569.0436.0379.0472.0481.0374.0321.0419.0485.0264.0298.0433.0444.0303.0254.0393.0401.0261.0240.0NANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity ▁█7.015.0NA4.08.013.05.03.012.011.06.03.05.06.01.04.06.09.05.05.08.09.06.08.010.013.05.07.07.013.04.06.07.011.04.06.0NANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇█▃▃▅▆▃▂▃▆▁▂▄▅▄▃▄▄▃▃▄▄▃▃▃▄▂▂▄▄▂▂▃▃▂▂▃▃▂▁▂▃1209.01322.0540.0459.0787.01007.0531.0414.0550.0944.0224.0385.0719.0916.0642.0537.0711.0753.0588.0525.0681.0686.0551.0457.0595.0704.0368.0432.0608.0649.0438.0383.0564.0588.0370.0336.0483.0507.0344.0198.0415.0447.0NANANANA
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest ▁█827.0998.0NA320.0580.0767.0396.0306.0344.0727.0159.0279.0536.0696.028.0397.0507.0578.0441.0384.0480.0490.0380.0329.0429.0498.0269.0305.0440.0457.0307.0260.0400.0412.0265.0246.0339.0354.0244.0133.0286.0319.0192.0128.0-29.0274.0
us-gaap:IncomeTaxExpenseBenefit ▆▅▃▃▄▄▃▃▄▄▂▃▄▄█▃▄▃▃▃▄▄▃▃▃▄▃▃▃▄▃▃▃▃▃▃▃▃▃▂▃▃▃▂▁▃382.0324.0161.0139.0207.0240.0135.0108.0206.0217.065.0106.0183.0220.0614.0140.0204.0175.0147.0141.0201.0196.0171.0128.0166.0206.099.0127.0168.0192.0131.0123.0164.0176.0105.090.0144.0153.0100.065.0129.0128.0106.055.0-60.0103.0
us-gaap:IncomeTaxesPaidNet █▂▇▅▁▃▆▂▅▂▄▂▆▂281.0122.0259.0187.091.0136.0219.0115.0196.0131.0177.0106.0221.0128.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpense ▆▆▇▇▇▇▇▇█▇▅▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▂▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▃▃▃110.0118.0128.0128.0132.0127.0130.0133.0141.0120.092.069.068.061.059.060.060.058.048.047.048.046.046.041.040.036.036.045.042.042.043.040.040.044.046.044.045.046.050.049.049.051.053.060.060.060.0
us-gaap:InterestPaidNet ▂▆▂▆▂▆▁█▂▃▁▄▁▃43.0191.044.0189.049.0199.040.0246.043.098.039.0118.027.080.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▄▃▄▄▃▃▄▄▃▃▄▄▃▃▃▃▃▂▃▃▂▂▃▃820.0983.0374.0316.0572.0754.0391.0303.0332.0716.0153.0276.0531.0690.029.0393.0501.0569.0436.0379.0472.0481.0375.0323.0419.0482.0294.0297.0431.0443.0303.0253.0388.0413.0259.0241.0329.0347.0256.0130.0282.0325.0203.0168.0236.0248.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▄█▃▂▄▇▃▂▆▆▄▂▃▄▁▂▄▅▃▃▄▅▄▄▆▇▃▄▄▇▂▄▄▆▂▄▄▄▂▃▄▄▂▂▄▂7.015.05.04.08.013.05.03.012.011.06.03.05.06.01.04.06.09.05.05.08.09.06.08.010.013.05.07.07.013.04.06.07.011.04.06.08.07.04.05.07.06.03.03.06.04.0
us-gaap:OperatingExpenses █▇█▆▆▇▇▇▇▅▅▄▅▅▄▃▃▃▃▃▃▃▃▃▃▂▃▃▃▃▃▂▂▂▃▂▂▂▂▂▂▂▂▁▃▁3789.03725.03845.03428.03304.03581.03672.03501.03669.03133.03091.02963.03043.03092.02999.02744.02731.02694.02731.02563.02650.02603.02744.02654.02596.02480.02710.02696.02653.02591.02626.02528.02511.02519.02596.02467.02508.02524.02517.02496.02463.02412.02460.02285.02656.02210.0
us-gaap:OperatingIncomeLoss ▇█▄▄▆▇▄▄▅▆▄▄▅▆▅▄▅▅▄▄▅▅▄▄▄▅▄▃▄▅▄▃▄▄▃▃▄▄▃▃▄▄▃▂▁▃1228.01358.0571.0540.0885.01070.0592.0467.0680.0938.0621.0541.0691.0908.0686.0597.0764.0809.0633.0572.0726.0733.0594.0461.0629.0735.0536.0445.0647.0673.0489.0404.0577.0607.0406.0378.0518.0527.0391.0310.0465.0472.0325.0239.0-50.0425.0
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax NA-91.0755.0497.0237.0-930.0517.0-475.015.094.06.0-242.0-516.0223.065.0126.0289.0235.0-404.0-54.0-333.013.0-187.0-276.0243.0-423.0-311.0-419.0137.078.00.0256.0-84.0-256.030.0167.0-177.0162.0NANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▅▅▇▇▂▅▃▆▆▅▄▄▆█▅▇▆▂▅▄▆▅▄▆▄▁▄▆▅█▆▅▅▄▆▅▆44.0-87.038.0434.0265.0-792.0-124.0-404.063.057.0-159.0-223.0-360.0152.0517.0-19.0296.0256.0-804.012.0-204.0123.0-98.0-199.0167.0-243.0-952.0-288.0101.0-87.0592.0222.0-56.0-72.0-302.0110.0-92.0165.0NANANANANANANANA
us-gaap:ProfitLoss ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▄▃▄▄▃▃▄▄▃▃▄▄▃▃▃▃▃▂▃▃▂▂▃▃827.0998.0379.0320.0580.0767.0396.0306.0344.0727.0159.0279.0536.0696.030.0397.0507.0578.0441.0384.0480.0490.0381.0331.0429.0495.0299.0304.0438.0456.0307.0259.0395.0424.0263.0247.0337.0354.0260.0135.0289.0331.0206.0171.0242.0252.0
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ██▆▅▆▇▆▅▆▅▄▄▄▅▄▃▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▃▂▂▂▂▂▂▂▂▂▁▁▁5017.05083.04416.03968.04189.04651.04264.03968.04349.04071.03712.03504.03734.04000.03685.03341.03495.03503.03364.03135.03376.03336.03338.03115.03225.03215.03246.03141.03300.03264.03115.02932.03088.03126.03002.02845.03026.03051.02908.02806.02928.02884.02785.02524.02606.02635.0
  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 █████▇▇▇█▇▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁32953.032273.033049.032681.032169.031391.031357.031097.032116.030137.021578.021129.021159.021379.020429.019690.019442.018969.018190.018358.018076.018128.018216.017724.017413.016834.017840.017987.017588.016577.016980.016976.015838.015537.016288.015736.015202.015010.015454.015121.015451.015073.015310.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity █████▇▇▇█▇▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁32953.032273.033049.032681.032169.031391.031357.031097.032116.030137.021578.021129.021159.021379.020429.019690.019442.018969.018190.018358.018076.018128.018216.017724.017413.016834.017840.017987.017588.016577.016980.016976.015838.015537.016288.015736.015202.015010.015454.015121.015451.015073.015310.0NANANA
  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:AssetsCurrent ▃▃▄▄▄▄▃▃▃█▂▂▂▂▂▁▁▁▁▁▁▁▁▂▁▁▂▃▂▂▂▂▁▁▂▂▁▁▂▁▁▁▁7573.07549.08155.08312.08097.07749.07068.07056.07526.012675.05934.05966.06175.06270.05562.05215.05182.04981.04884.05209.04930.04798.05044.05526.05299.05177.06055.06852.06414.05563.06300.06161.05214.05097.05963.05651.05195.05035.05648.05030.05186.04936.05276.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▂▆▇▄▃▂▂▃▂▂▁▂▂▂▂▁▁▂▃▁▁▃▃▁▂▅█▅▃▇▆▂▂▇▆▃▃▆▄▄▃▅▄▃▂888.01120.02089.02388.01711.01480.01155.01213.01294.01117.01066.0951.01036.01168.01205.01078.0966.0930.01026.01388.0974.0918.01374.01330.0930.01104.01958.02649.02005.01380.02303.02174.01230.01263.02301.02044.01504.01410.02113.01714.01659.01330.01894.01695.01510.01167.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▁▂▇█▅▄▂▃▃▂▂▁▂▂▂888.01120.02089.02388.01711.01480.01155.01213.01294.01117.01066.0951.01036.01168.01205.0NANANA1026.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ReceivablesNetCurrent █▇▇▇█▇▇▆▇▅▄▅▅▅▄▃▄▃▃▃▃▃▂▂▃▂▂▂▃▂▂▂▂▂▁▁▁▁▁▁▁▂▁5839.05597.05326.05236.05647.05558.05236.05198.05553.04630.04317.04476.04601.04562.04133.03909.03984.03795.03643.03603.03721.03647.03471.03517.03659.03380.03377.03496.03706.03462.03310.03294.03345.03176.03058.03059.03102.03008.02906.02925.03111.03212.03035.0NANANA
us-gaap:OtherAssetsCurrent ██▇▆▇▇▆▆▆▅▅▅▅▅▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▃▃▃▃846.0832.0740.0688.0739.0711.0677.0645.0679.0569.0551.0539.0538.0540.0224.0228.0232.0256.0215.0218.0235.0233.0199.0213.0235.0227.0199.0229.0223.0237.0205.0234.0229.0222.0194.0214.0208.0227.0253.0391.0416.0394.0347.0NANANA
  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:PropertyPlantAndEquipmentGross NANA3015.0NANANA2859.0NANANA2543.0NANANA2538.0NANANA2408.0NANANA2394.0NANANA2448.0NANANA2425.0NANANA2391.0NANANA2273.0NANANA2233.0NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA1326.0NANANA1268.0NANANA1159.0NANANA1179.0NANANA1113.0NANANA1133.0NANANA1193.0NANANA1201.0NANANA1168.0NANANA1101.0NANANA1079.0NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandAndBuildingNANA379.0NANANA377.0NANANA377.0NANANA385.0NANANA389.0NANANA396.0NANANA401.0NANANA408.0NANANA412.0NANANA405.0NANANA402.0NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA1310.0NANANA1214.0NANANA1007.0NANANA974.0NANANA906.0NANANA865.0NANANA854.0NANANA816.0NANANA811.0NANANA767.0NANANA752.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▇▆▆▆▆▅▆▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▂▁2317.02197.02159.02113.02052.02012.02001.01944.02018.01889.01842.01863.01857.01889.01826.01822.01758.01729.01683.01694.01666.01651.01621.01657.01663.01635.01639.01655.01663.01616.01597.01611.01595.01586.01582.01551.01535.01535.01469.01483.01366.01461.01411.0NANANA
us-gaap:AmortizationOfIntangibleAssets █▄▄▄▇▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁189.0100.086.091.0174.086.079.084.0100.051.048.047.043.045.047.042.040.040.031.032.034.033.030.031.024.024.022.022.020.022.019.018.017.018.019.019.017.017.015.018.016.016.014.016.019.017.0
us-gaap:PropertyPlantAndEquipmentNet ▆▆███▇█▆▅▂▁▁▁▂▂▂▂▂▂▂▃▃▄▅▆▅▆▆▇▆▆▆▅▅▆▆▅▅▅▅▆▆▆816.0830.0856.0864.0866.0850.0858.0816.0799.0716.0701.0707.0698.0713.0712.0728.0721.0722.0725.0717.0736.0757.0773.0786.0807.0794.0809.0822.0843.0825.0828.0824.0804.0793.0809.0807.0800.0795.0804.0804.0823.0828.0822.0NANANA
us-gaap:Goodwill ███▇▇▇▇▇▇▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁15775.015458.015517.015034.014797.014412.014671.014286.014479.09739.09599.09435.09177.09194.09089.09100.08821.08769.08369.07975.07945.07950.07889.07506.07381.07160.07241.07179.07230.07159.06893.06865.06804.06752.06792.06679.06643.06675.06562.06539.06595.06557.06420.06286.06157.06085.0
us-gaap:IntangibleAssetsNetExcludingGoodwill NANA2699.0NANANA2774.0NANANA1437.0NANANA1274.0NANANA1126.0NANANA1036.0NANANA692.0NANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▇▇▇▇▇▇▇▇█▄▄▃▃▃▃▃▃▃▃▂▂▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁2717.02603.02699.02711.02761.02663.02774.02869.03083.01464.01437.01329.01234.01256.01274.01320.01233.01291.01126.0907.0955.01035.01036.0836.0774.0672.0692.0635.0641.0640.0472.0488.0477.0447.0469.0434.0443.0454.0401.0394.0405.0436.0403.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset █▇███████▇▁1983.01824.01894.01884.01882.01885.01921.01957.02016.01625.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▆▆▆▆▆▆█▇█▆▆▅▆▆▆▄▆▅▄▄▄▅▄▄▄▄▄▃▂▂▂▂▁▁▁▁▂▂▁▁▂▂▂1509.01482.01458.01428.01476.01519.01757.01653.01764.01423.01539.01381.01535.01535.01430.01225.01529.01325.01213.01212.01220.01290.01177.01221.01219.01209.01200.0976.0934.0937.0882.0838.0742.0739.0772.0748.0828.0841.0795.0793.0914.0881.0919.0NANANA
us-gaap:EquitySecuritiesFvNi ███▆█▁▁▁76.074.072.058.072.018.019.019.0NANA146.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:AccountsPayableAndAccruedLiabilitiesCurrent ▇▇█▆▆▆▆▅▆▄▄▄▄▄▃▃▃▃▂▂▂▂▂▁▁▁▂▂▂▂▂▂2830.02940.03050.02662.02668.02611.02746.02479.02600.02244.02234.02293.02246.02343.02083.02002.02027.02033.01969.01862.01868.01879.01886.01759.01748.01699.01883.01800.01849.01895.01861.01830.0NANA1721.0NANANANANANANANANANANA
us-gaap:AccruedIncomeTaxesCurrent ██▅▇█▆▄▅▄▆▃▄▅▆▄▅▄▄▃▅▄▃▃▂▅▃▄▄▅▄▃▃▄▃▂▃▂▂▁▂▂▁▁353.0368.0247.0318.0367.0256.0179.0251.0165.0256.0157.0179.0216.0261.0199.0229.0193.0202.0146.0213.0182.0128.0154.0107.0209.0136.0178.0199.0209.0176.0148.0148.0171.0148.0110.0154.0111.080.063.080.0110.049.062.0NANANA
us-gaap:DebtCurrent ▂▄▂▅▅█▅▄▆▆▂▃▂▂▂▁▁▂▂▂▂▂▁▁▁▁▁▃▂▂▂516.01015.0517.01216.01216.02409.01215.01139.01663.01562.0314.0638.0439.0512.0262.013.0162.0412.0312.0262.0261.0265.012.062.0111.061.011.0640.0333.0432.0334.0NANANANANANANANANANANANANANANA
us-gaap:DividendsPayableCurrent NA238.0NA237.0NA231.00.0232.0232.0211.00.0211.0212.0193.00.0193.0194.0176.00.0178.0178.0163.00.0163.0166.0151.00.0153.0154.0139.00.0138.0139.0128.0NA126.0126.0121.0NA119.0NANA0.0NANANA
us-gaap:LiabilitiesCurrent ▆▇▇▇▆██▇▇▆▅▄▃▃▄▃▃▂▃▃▂▂▃▂▂▁▃▃▂▂▃▃▁▁▂▂▂▁▃▂▂▁▂5816.06123.06556.06530.05928.06859.06679.06204.06382.05739.04924.04727.04216.04122.04262.03814.03649.03588.04082.03825.03504.03159.03708.03404.03208.02753.03705.04130.03530.03343.03809.03893.02964.02840.03564.03506.03170.03032.03739.03384.03242.02889.03105.0NANANA
us-gaap:LongTermDebtCurrent ▄▇▄█▅▅█▄▆▆▃▄▂▂▂▁▁▂▂▂▂▁▁▁▁▁▁▅▃▃▃▄▁▁▂▂▂▂▂▂▂▂▁516.01015.0517.01216.0716.0716.01215.0514.0814.0814.0314.0563.0264.0263.0262.013.012.0262.0262.0262.0261.013.012.062.061.061.011.0640.0333.0332.0334.0583.010.010.0260.0259.0259.0259.0260.0260.0260.0261.08.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent █████████▇▁342.0342.0342.0335.0332.0334.0342.0341.0347.0291.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:LongTermDebt ▁▃▃██▅▅▅▆10773.011257.011313.012748.012701.011947.011956.011943.012273.0NA5824.0NANANANANANANANANANANANANANANA3368.0NANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▁▁▃▆█▅▃▆▆10257.010242.010796.011532.011985.011231.010741.011429.011459.0NA5510.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations NANA10796.0NANANA10741.0NANA11472.05510.05512.05813.05815.05225.05475.05479.05479.04495.04494.04496.04748.04402.04422.03825.03828.03376.03379.03212.02619.02621.02623.02703.02705.02658.02660.02663.02664.02668.02670.02773.02771.03026.0NANANA
 us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:BalanceSheetLocation us-gaap:OtherNoncurrentLiabilitiesNANA561.0NANANA565.0NANANA421.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▇██▆▆▆▇▅▅▄▅▄▄▄▅▅▅▅▅▅▅▅▅▆▅▅▆▁▁▁▁▅▅▅▅▃▃▃▄▁▁▂▂2539.02594.02662.02163.02197.02248.02336.01998.02044.01874.01911.01727.01768.01842.01888.01948.01986.02025.02076.01969.02004.02042.02058.02114.02072.02070.02244.01094.01123.01135.01150.01975.01979.01993.02094.01594.01574.01606.01655.01148.01178.01220.01211.0NANANA
us-gaap:MinorityInterest ▄▅▄▅▅▄▄▅█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁156.0162.0156.0161.0166.0156.0150.0177.0272.077.073.085.081.081.083.085.081.087.080.083.081.092.089.095.089.091.079.082.077.082.070.078.067.073.064.070.071.067.057.058.053.058.047.0NANANA
us-gaap:OtherLiabilitiesNoncurrent █▆▆▆▆▅▅▅▇▄▅▅▄▄▅▂▂▂▂▂▃▃▃▃▃▂▃▃▃▃▃▂▁▁▁▂▂▂▂▂▂▃▃1720.01514.01485.01450.01415.01361.01397.01388.01594.01194.01362.01322.01262.01267.01311.01006.0949.0958.0957.0999.01045.01089.01128.01083.01079.0986.01041.01114.01129.01083.01052.0985.0906.0853.0906.0920.0985.0971.0984.01008.01027.01054.01123.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent █████████▇▁1992.01850.01924.01902.01902.01898.01926.01957.01981.01590.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▂▁█▆340.0332.0380.0363.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▂▁█▅297.0289.0331.0315.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▃▁█▄265.0257.0288.0270.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive ▄▁█▃244.0235.0256.0242.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive █▁█▆901.0678.0905.0855.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▇▆▆▅▃▄▄▅▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▃▂▃▄▅▄▄▃▂▂▂▂▂▂▁▂▂▂▂10264.09596.09260.08752.08392.07451.07943.07797.08337.07986.07584.07538.07797.08021.07442.07131.07074.06619.06272.06754.06705.06771.06602.06343.06872.06863.07133.07915.08228.08043.07975.07120.06846.06713.06606.06580.06344.06265.05940.06465.06780.06687.06415.0NA6043.06014.0
us-gaap:AdditionalPaidInCapitalCommonStock ▅▃▅▄▃▂▄▃▂▁▃▂▂▁▂▂▂▂▃▃▂▂▄▃▃▃▄▄▄▄▆▆▅▅▇▆▆▆█▇▇▆█945.0851.0943.0882.0814.0746.0862.0796.0736.0681.0817.0771.0732.0682.0784.0783.0763.0733.0842.0812.0789.0777.0861.0851.0842.0837.0930.0922.0914.0909.01028.01010.01002.0993.01107.01076.01053.01018.01156.01123.01092.01050.01185.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁17597.016780.016272.015902.016060.015490.015199.014811.014741.014642.014347.014196.014131.013812.013140.013113.012915.012606.012388.011953.011751.011460.011302.010928.010768.010515.010335.010042.09897.09620.09452.09151.09036.08786.08628.08371.08257.08053.07949.07696.07688.07528.07436.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▂▂▁▁▂▃▃▃▃▄▄▅▄▃▃▃▂▄▄▄▄▄▅▄▅▆▇▇▇▆▅▆▆▆▆▆▆████-5153.0-5197.0-5110.0-5148.0-5582.0-5847.0-5055.0-4931.0-4527.0-4590.0-4647.0-4488.0-4265.0-3905.0-4043.0-4560.0-4541.0-4837.0-5093.0-4289.0-4301.0-4097.0-4220.0-4122.0-3923.0-4090.0-3847.0-2895.0-2607.0-2708.0-2621.0-3213.0-3435.0-3379.0-3307.0-3005.0-3115.0-3023.0-3188.0-2333.0-2078.0-2183.0-2300.0NANANA
us-gaap:TreasuryStockValue █▇▇█████▇▇▇▇▇▇▆▆▆▅▅▅▅▄▄▄▃▂▂▂▂▁▁▁▁▁▁▁▁▁▂▂▁▁▁3842.03561.03562.03606.03627.03655.03774.03617.03446.03385.03567.03587.03443.03210.03083.02851.02705.02531.02506.02366.02176.02022.01991.01970.01465.01051.0925.0797.0614.0421.0515.0467.0385.0321.0447.0493.0483.0411.0595.0640.0536.0327.0514.0NANANA
us-gaap:MinorityInterest ▄▅▄▅▅▄▄▅█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁156.0162.0156.0161.0166.0156.0150.0177.0272.077.073.085.081.081.083.085.081.087.080.083.081.092.089.095.089.091.079.082.077.082.070.078.067.073.064.070.071.067.057.058.053.058.047.0NANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▁▇▇▇▁▆▆▇▂▇▇▇▃▆▆▆▄▆▆▆▄▆▆▆▄▆▆▆▃▆▆▆▂▆▆▇▁▆▆▇▁▆85.0-133.069.069.066.0-129.024.023.059.0-101.046.046.049.0-75.037.036.033.0-43.030.024.026.0-36.015.020.021.0-40.011.021.012.0-59.023.024.020.0-89.029.034.039.0-118.037.035.044.0-129.031.0NANANA
 us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▄▃▃▃▁▂█▅▄▃▅▁▂▃▂▁▄▂▃▂▂▃▅▂▄▁▃13.09.08.09.00.04.029.017.012.07.018.0-1.05.08.03.00.012.02.08.03.05.06.015.02.012.01.07.0NANA0.011.0NANANA21.0-1.0NANA5.04.0NANANANANANA
  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 ▇▂██▇▁▇▇▅▂▇▆▆▂▆▆▆▂▆▆▆▁▆▆▄▁▆▆▅▂▆▆▅▁▅▅▅▁▆▅▆▂▅▂▅▂1158.0-408.01383.01421.01216.0-638.01070.01050.0517.0-276.01109.0906.0777.0-364.0756.0794.0742.0-399.0895.0883.0810.0-581.0908.0874.0112.0-530.0971.0883.0638.0-380.0766.0738.0430.0-593.0572.0684.0569.0-503.0710.0665.0706.0-376.0672.0-222.0523.0-251.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▇▇▇▇▇▇▁▇▇▆▇▇▇▇▇▆▆▇▇▇▆▇▇▇▆▇▇▆▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇-370.0-67.0-168.0-82.0-319.0-245.0-167.0-74.0-5243.0-187.0-337.0-473.0-209.0-70.0-97.0-321.0-77.0-461.0-798.0-68.0-64.0-126.0-522.0-215.0-334.0-194.0-406.0-235.0-165.0-416.0-147.0-105.0-202.08.0-214.0-85.0-168.0-116.0-184.0-52.0-53.0-168.0-282.0970.0-11.0-142.0
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▁▂▂▄▂▂▁█▂▂▂▃▂▂▂▃▂▂▂▃▂▂▂▂▂▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂-1040.0-451.0-1717.0-784.0-719.01340.0-1031.0-987.0-1502.06826.0-563.0-515.0-526.0294.0-482.0-543.0-681.0697.0-284.0-407.0-621.0245.0-276.0-142.0-494.071.0-1091.0121.0127.0-118.0-484.0242.0-228.0-364.0-109.0-164.0-215.0-145.0-116.0-420.0-343.0-128.0-199.0-666.0-109.0-156.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▄▄▅▅▅▄▄▁█▅▄-232.0-969.0-299.0677.0231.0325.0-58.0-81.0-6182.06410.0115.0-85.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:DeferredIncomeTaxExpenseBenefit ▄▃▃▃▃▃▂▃▄▂▁▃▃▃█▃▃▃▃▃▃▃▂▅▃▄▃▃▃▄▃▄▃▃▄▃▂▃▄▃▂▄▄▇▇▄105.014.034.0-1.0-2.09.0-11.013.091.0-9.0-105.032.023.011.0344.010.017.025.025.0-5.026.022.0-70.0124.03.087.08.020.024.059.046.066.020.051.078.0-7.0-10.035.087.018.0-37.0110.056.0265.0265.0100.0
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▂██▇▁▇▇▅▂▇▆▆▂▆▆▆▂▆▆▆▁▆▆▄▁▆▆▅▂▆▆▅▁▅▅▅▁▆▅▆▂▅▂▅▂1158.0-408.01383.01421.01216.0-638.01070.01050.0517.0-276.01109.0906.0777.0-364.0756.0794.0742.0-399.0895.0883.0810.0-581.0908.0874.0112.0-530.0971.0883.0638.0-380.0766.0738.0430.0-593.0572.0684.0569.0-503.0710.0665.0706.0-376.0672.0-222.0523.0-251.0
us-gaap:NetIncomeLoss ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▄▃▄▄▃▃▄▄▃▃▄▄▃▃▃▃▃▂▃▃▂▂▃▃820.0983.0374.0316.0572.0754.0391.0303.0332.0716.0153.0276.0531.0690.029.0393.0501.0569.0436.0379.0472.0481.0375.0323.0419.0482.0294.0297.0431.0443.0303.0253.0388.0413.0259.0241.0329.0347.0256.0130.0282.0325.0203.0168.0236.0248.0
us-gaap:ProfitLoss ▇█▄▃▅▆▄▃▃▆▂▃▅▆▁▄▄▅▄▄▄▄▄▃▄▄▃▃▄▄▃▃▄▄▃▃▃▃▃▂▃▃▂▂▃▃827.0998.0379.0320.0580.0767.0396.0306.0344.0727.0159.0279.0536.0696.030.0397.0507.0578.0441.0384.0480.0490.0381.0331.0429.0495.0299.0304.0438.0456.0307.0259.0395.0424.0263.0247.0337.0354.0260.0135.0289.0331.0206.0171.0242.0252.0
us-gaap:ShareBasedCompensation █▅▄▄▅▄▄▄▃▂▁▁98.078.071.072.075.072.068.067.060.057.047.047.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▆▇▇▇▇▇▇▇▁▇▇▆▇▇▇▇▇▆▆▇▇▇▆▇▇▇▆▇▇▆▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇-370.0-67.0-168.0-82.0-319.0-245.0-167.0-74.0-5243.0-187.0-337.0-473.0-209.0-70.0-97.0-321.0-77.0-461.0-798.0-68.0-64.0-126.0-522.0-215.0-334.0-194.0-406.0-235.0-165.0-416.0-147.0-105.0-202.08.0-214.0-85.0-168.0-116.0-184.0-52.0-53.0-168.0-282.0970.0-11.0-142.0
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▃▃▃▄▆█▇▄▃▄▄▃▂▄▃▄▂▃▂▂▁▃▃▄▄▄▄▅▅▆▅▅▄▃▅▅▁▃▂▃▂▃▁▂▃82.069.070.078.082.0118.0137.0123.088.073.092.087.077.058.085.073.082.062.079.060.063.051.076.073.085.091.083.083.0103.099.0113.096.0104.088.071.0100.098.051.075.063.075.067.078.050.063.080.0
  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 ▂▂▁▂▂▄▂▂▁█▂▂▂▃▂▂▂▃▂▂▂▃▂▂▂▂▂▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂-1040.0-451.0-1717.0-784.0-719.01340.0-1031.0-987.0-1502.06826.0-563.0-515.0-526.0294.0-482.0-543.0-681.0697.0-284.0-407.0-621.0245.0-276.0-142.0-494.071.0-1091.0121.0127.0-118.0-484.0242.0-228.0-364.0-109.0-164.0-215.0-145.0-116.0-420.0-343.0-128.0-199.0-666.0-109.0-156.0
us-gaap:RepaymentsOfLongTermDebt ▃▁█▃▁▃▂▂▃▁▂▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁▂▁▁▁▂▁▁▁▁▁▄▁▁505.04.01504.0504.04.0503.0304.0303.0454.03.0253.04.03.03.02.057.0251.05.03.03.03.03.053.03.03.02.04.0322.02.03.03.02.03.0252.02.03.02.0252.03.02.04.02.02.0553.02.02.0
us-gaap:PaymentsOfDividendsCommonStock ████████▆▆▇▆▆▅▆▆▅▄▅▅▄▄▄▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▂▂▁▁▂▁▁▁241.0237.0241.0236.0234.0232.0235.0233.0212.0210.0213.0211.0194.0189.0195.0194.0176.0175.0178.0178.0165.0161.0164.0166.0151.0151.0153.0154.0138.0137.0139.0139.0128.0127.0128.0127.0121.0121.0122.0123.0118.0117.0119.0112.0112.0109.0
us-gaap:PaymentsForRepurchaseOfCommonStock █▁322.0112.0NANANANA185.0200.0100.00.00.0175.0250.0250.0300.0200.0200.0200.0175.0215.0210.0200.075.0550.0475.0300.0200.0250.0250.0100.0150.0150.0150.0100.050.080.0NANA0.0126.0NANANANANANA
  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 Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value507509508507506506504505507507504504505508509511513515514516519521522522531538540542546549547547549550545544544546539538541548541543542541530514
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value513514512511510511512511510512514519520522523525526533541545551556556558559557552553551549555552548545536
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value508509507506505506507505504507508512514515518521521528535539544549548549551548544545542540547544543541533
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value1.611.930.740.621.131.490.770.60.661.420.30.551.051.360.060.770.981.10.850.730.910.920.720.610.780.890.540.550.780.810.550.460.710.750.480.440.60.640.470.240.510.590.370.30.430.46
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
Value1.61.910.730.621.121.480.760.590.651.40.30.541.041.340.060.760.961.090.840.730.90.910.710.610.770.880.540.540.770.80.540.450.690.740.470.440.590.630.460.240.50.580.370.30.430.45
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

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value98787172757268676057474749503836472821232320181617161519152626302034353739414141434044404842
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.01.51.61.81.81.51.61.71.41.41.31.31.31.21.01.11.30.80.60.70.70.60.50.50.50.50.50.60.50.80.81.00.61.11.21.31.31.31.41.51.51.41.61.61.81.6

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value864896412750837-38.0267-101.0395773-6.053171842546374797825-368.0391268604277124586239-658.09.0532356895475332341-43.0351237512-599.0-125.03874424143676173
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax17.217.69.318.920.0-0.86.3-2.59.119.0-0.21.54.621.114.811.222.823.6-10.912.57.918.18.34.018.27.4-20.30.316.110.928.716.210.810.9-1.412.37.816.8-20.6-4.513.215.31.517.32.96.6

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.0155.04.08.0135.03.012116.03.05.06.01.04.06.09.05.05.08.09.06.08.010.0135.07.07.0134.06.07.0114.06.08.07.04.05.07.06.03.03.06.04.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.30.10.10.20.30.10.10.30.30.20.10.10.10.00.10.20.30.10.20.20.30.20.30.30.40.20.20.20.40.10.20.20.40.10.20.30.20.10.20.20.20.10.10.20.2

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value871911417754845-25.0272-98.04077840.056176848547378803834-363.0396276613283132596252-653.016539369899481339352-39.0357245519-595.0-120.03944484443982177
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax17.417.99.419.020.2-0.56.4-2.59.419.30.01.64.721.214.811.323.023.8-10.812.68.218.48.54.218.57.8-20.10.516.311.328.916.411.011.3-1.312.58.117.0-20.5-4.313.515.51.617.43.16.7

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value191125-14.0-31.0-2.02.07.08.05.012-52.0280.012-2.05.00.02.00.01.0-3.0-1.0370.02.00.027-3.013111423215.0-5.04.020-4.0-1.0-6.01919-4.0178.0
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.40.20.6-0.4-0.7-0.00.00.20.20.10.3-1.50.70.00.3-0.10.10.00.10.00.0-0.1-0.01.20.00.10.00.9-0.10.40.40.50.70.70.2-0.20.10.7-0.1-0.0-0.20.70.7-0.20.70.3

us-gaap:GainLossOnInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

mmc:AlexanderForbesGroupHoldingsLimited


Gain
Period End2020-12-312020-09-302020-06-30
Value0.00.0-23.0
Percentage of GainLossOnInvestments0.0-0.074.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.0-0.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:AlexanderForbesGroupHoldingsLimited0.00.00.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value82098331657275439130333271615327653169027393501569436379472481374321419485264298433444303254393401261240
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.319.38.013.716.29.27.67.617.64.17.914.217.20.711.814.316.213.012.114.014.411.210.313.015.18.19.513.113.69.78.712.712.88.78.4

Income Loss From Continuing Operations Attributable To Noncontrolling Entity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value7.0154.08.0135.03.012116.03.05.06.01.04.06.09.05.05.08.09.06.08.010.0135.07.07.0134.06.07.0114.06.0
Percentage of IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.30.10.20.30.10.10.30.30.20.10.10.10.00.10.20.30.10.20.20.30.20.30.30.40.20.20.20.40.10.20.20.40.10.2

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value120913225404597871007531414550944224385719916642537711753588525681686551457595704368432608649438383564588370336483507344198415447
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.126.012.211.618.821.712.510.412.623.26.011.019.322.917.416.120.321.517.516.720.220.616.514.718.421.911.313.818.419.914.113.118.318.812.311.816.016.611.87.114.215.5

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value82799832058076739630634472715927953669628397507578441384480490380329429498269305440457307260400412265246339354244133286319192128-29.0274
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.519.68.113.816.59.37.77.917.94.38.014.417.40.811.914.516.513.112.214.214.711.410.613.315.58.39.713.314.09.98.913.013.28.88.611.211.68.44.79.811.16.95.1-1.110.4

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3823241611392072401351082062176510618322061414020417514714120119617112816620699127168192131123164176105901441531006512912810655-60.0103
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.66.43.63.54.95.23.22.74.75.31.83.04.95.516.74.25.85.04.44.56.05.95.14.15.16.43.04.05.15.94.24.25.35.63.53.24.85.03.42.34.44.43.82.2-2.33.9

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value28112225918791136219115196131177106221128
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.62.45.94.72.22.95.12.94.53.24.83.05.93.2

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value110118128128132127130133141120926968615960605848474846464140363645424243404044464445465049495153606060
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.22.32.93.23.22.73.03.43.22.92.52.01.81.51.61.81.71.71.41.51.41.41.41.31.21.11.11.41.31.31.41.41.31.41.51.51.51.51.71.71.71.81.92.42.32.3

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value431914418949199402464398391182780
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.93.81.04.81.24.30.96.21.02.41.13.40.72.0

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
Value82098337431657275439130333271615327653169029393501569436379472481375323419482294297431443303253388413259241329347256130282325203168236248
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 RevenueFromContractWithCustomerIncludingAssessedTax16.319.38.58.013.716.29.27.67.617.64.17.914.217.20.811.814.316.213.012.114.014.411.210.413.015.09.19.513.113.69.78.612.613.28.68.510.911.48.84.69.611.37.36.79.19.4

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.0155.04.08.0135.03.012116.03.05.06.01.04.06.09.05.05.08.09.06.08.010.0135.07.07.0134.06.07.0114.06.08.07.04.05.07.06.03.03.06.04.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.30.10.10.20.30.10.10.30.30.20.10.10.10.00.10.20.30.10.20.20.30.20.30.30.40.20.20.20.40.10.20.20.40.10.20.30.20.10.20.20.20.10.10.20.2

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3789372538453428330435813672350136693133309129633043309229992744273126942731256326502603274426542596248027102696265325912626252825112519259624672508252425172496246324122460228526562210
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax75.573.387.186.478.977.086.188.284.477.083.384.681.577.381.482.178.176.981.281.878.578.082.285.280.577.183.585.880.479.484.386.281.380.686.586.782.982.786.689.084.183.688.390.5101.983.9

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value122813585715408851070592467680938621541691908686597764809633572726733594461629735536445647673489404577607406378518527391310465472325239-50.0425
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.526.712.913.621.123.013.911.815.623.016.715.418.522.718.617.921.923.118.818.221.522.017.814.819.522.916.514.219.620.615.713.818.719.413.513.317.117.313.411.015.916.411.79.5-1.916.1

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

mmc:CorporateAndEliminations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-66.0-63.0-71.0-71.0-66.0-66.0-109.0-68.0-115.0-74.0-56.0-43.0-48.0-55.0-51.0-46.0-47.0-45.0-45.0-51.0-49.0-47.0-54.0-49.0-46.0
Percentage of OperatingIncomeLoss-5.4-4.6-12.4-13.1-7.5-6.2-18.4-14.6-16.9-7.9-9.0-7.9-6.9-6.1-7.4-7.7-6.2-5.6-7.1-8.9-6.7-6.4-9.1-10.6-7.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-1.3-1.2-1.6-1.8-1.6-1.4-2.6-1.7-2.6-1.8-1.5-1.2-1.3-1.4-1.4-1.4-1.3-1.3-1.3-1.6-1.5-1.4-1.6-1.6-1.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:CorporateAndEliminations412.5420.00.0373.7220.0300.00.0295.7460.0296.00.0286.7400.0458.30.0511.1361.5375.00.0510.0376.9470.00.0544.4383.3

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1294142164261195111367015357951012677584739963737643811854678623775780648510675781589503695718531454626655450427
Percentage of OperatingIncomeLoss105.4104.6112.4113.1107.5106.2118.4114.6116.9107.9109.0107.9106.9106.1107.4107.7106.2105.6107.1108.9106.7106.4109.1110.6107.3106.3109.9113.0107.4106.7108.6112.4108.5107.9110.8113.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax25.828.014.515.422.724.416.413.518.324.918.216.719.824.120.019.223.224.420.219.923.023.419.416.420.924.318.116.021.122.017.015.520.321.015.015.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments25.727.90.015.322.524.30.013.418.224.70.016.619.724.00.019.223.124.30.019.822.923.30.016.320.924.20.016.021.022.00.015.420.220.90.015.0

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

us-gaap:OperatingSegments, mmc:ConsultingSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value344361179278255282336317278279294291267247321329283241265308285245294285248248250274247225221232205187140205
Percentage of OperatingIncomeLoss28.026.631.351.528.826.456.867.940.929.747.353.838.627.246.855.137.029.841.953.839.333.449.561.839.433.746.661.638.233.445.257.435.530.834.554.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax6.97.14.17.06.16.17.98.06.46.97.98.37.26.28.79.88.16.97.99.88.47.38.89.17.77.77.78.77.56.97.17.96.66.04.77.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:ConsultingSegment18.219.30.016.415.816.00.017.815.416.70.017.616.214.80.020.717.815.80.020.418.516.60.018.516.717.50.017.816.215.70.016.114.513.70.014.6

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value9501060463333696854365218517733383293472716416314528613413315490535354225427533339229448493310222421468310222
Percentage of OperatingIncomeLoss77.478.181.161.778.679.861.746.776.078.161.754.268.378.960.652.669.175.865.255.167.573.059.648.867.972.563.251.569.273.363.455.073.077.176.458.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax18.920.910.58.416.618.48.65.511.918.010.38.412.617.911.39.415.117.512.310.014.516.010.67.213.216.610.47.313.615.110.07.613.615.010.37.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:RiskandInsuranceServicesSegment30.232.90.014.526.729.30.09.920.130.30.015.722.530.50.017.827.630.80.019.326.528.60.014.224.429.60.014.225.026.80.014.824.926.40.015.3

us-gaap:OperatingIncomeLoss us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-10.0-10.0-9.0-10.0-9.0-8.0-3.0-10.0-10.0-8.0-9.0-8.07.0-10.0-20.0-19.019-18.0
Percentage of OperatingIncomeLoss-0.8-0.7-1.6-1.9-1.0-0.7-0.5-2.1-1.5-0.9-1.4-1.51.0-1.1-2.9-3.22.5-2.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.2-0.2-0.2-0.3-0.2-0.2-0.1-0.3-0.2-0.2-0.2-0.20.2-0.2-0.5-0.60.5-0.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-91.0755497237-930.0517-475.015946.0-242.0-516.022365126289235-404.0-54.0-333.013-187.0-276.0243-423.0-311.0-419.0137780.0256-84.0-256.030167-177.0162
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-1.817.112.55.7-20.012.1-12.00.32.30.2-6.9-13.85.61.83.88.36.7-12.0-1.7-9.90.4-5.6-8.97.5-13.2-9.6-13.34.22.40.08.7-2.7-8.21.05.9-5.85.3

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value44-87.038434265-792.0-124.0-404.06357-159.0-223.0-360.0152517-19.0296256-804.012-204.0123-98.0-199.0167-243.0-952.0-288.0101-87.0592222-56.0-72.0-302.0110-92.0165
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.9-1.70.910.96.3-17.0-2.9-10.21.41.4-4.3-6.4-9.63.814.0-0.68.57.3-23.90.4-6.03.7-2.9-6.45.2-7.6-29.3-9.23.1-2.719.07.6-1.8-2.3-10.13.9-3.05.4

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value204.0-717.0-63.028138-641.07148-37.0-165.019156-71.0463-140.0-7.024-412.0651291108976-76.0180-641.0131-36.0-165.0590-34.029184
Percentage of OtherComprehensiveIncomeLossNetOfTax45.5-4.6-1886.8-14.510.6-17.4516.9-17.676.2-64.9103.8-8.5-43.3-46.789.6736.8-2.49.451.2541.7-63.289.4-90.8-38.2-45.5-74.167.3-45.5-35.6189.799.7-15.3-51.8-255.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.40.1-16.2-1.60.73.0-15.01.81.1-0.9-4.40.54.2-1.812.6-4.2-0.20.7-12.22.13.83.32.72.4-2.45.6-19.74.2-1.1-5.118.9-1.20.95.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value44-87.038434265-792.0-124.0-404.06357-159.0-223.0-360.0152517-19.0296256-804.012-204.0123-98.0-199.0167-243.0-952.0-288.0101-87.0592222-56.0-72.0-302.0110-92.0165
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.9-1.70.910.96.3-17.0-2.9-10.21.41.4-4.3-6.4-9.63.814.0-0.68.57.3-23.90.4-6.03.7-2.9-6.45.2-7.6-29.3-9.23.1-2.719.07.6-1.8-2.3-10.13.9-3.05.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


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
Value24-91.0755497237-930.0517-475.015946.0-242.0-516.022365126289235-404.0-54.0-333.013-187.0-276.0243-423.0-311.0-419.0137780.0256-84.0-256.0
Percentage of OtherComprehensiveIncomeLossNetOfTax54.5104.61986.8114.589.4117.4-416.9117.623.8164.9-3.8108.5143.3146.712.6-663.297.691.850.2-450.0163.210.6190.8138.7145.5174.132.7145.5135.6-89.70.0115.3150.0355.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.5-1.817.112.55.7-20.012.1-12.00.32.30.2-6.9-13.85.61.83.88.36.7-12.0-1.7-9.90.4-5.6-8.97.5-13.2-9.6-13.34.22.40.08.7-2.7-8.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value82799837932058076739630634472715927953669630397507578441384480490381331429495299304438456307259395424263247337354260135289331206171242252
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.519.68.68.113.816.59.37.77.917.94.38.014.417.40.811.914.516.513.112.214.214.711.410.613.315.49.29.713.314.09.98.812.813.68.88.711.111.68.94.89.911.57.46.89.39.6

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value7.0155.04.08.013282612116.03.05.06.01.04.06.09.05.05.08.09.06.08.010.0135.07.07.0134.06.07.0114.0
Percentage of ProfitLoss0.81.51.31.21.41.77.18.53.51.53.81.10.90.93.31.01.21.61.11.31.71.81.62.42.32.61.72.31.62.91.32.31.82.61.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.30.10.10.20.30.70.70.30.30.20.10.10.10.00.10.20.30.10.20.20.30.20.30.30.40.20.20.20.40.10.20.20.40.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value82098337431657275439130333271615327653169029393501569436379472481375323419482294297431443303253388413259
Percentage of ProfitLoss99.298.598.798.898.698.398.799.096.598.596.298.999.199.196.799.098.898.498.998.798.398.298.497.697.797.498.397.798.497.198.797.798.297.498.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.319.38.58.013.716.29.27.67.617.64.17.914.217.20.811.814.316.213.012.114.014.411.210.413.015.09.19.513.113.69.78.612.613.28.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


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
Value5017508344163968418946514264396843494071371235043734400036853341349535033364313533763336333831153225321532463141330032643115293230883126300228453026305129082806292828842785252426062635
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax dei:LegalEntity

mmc:MarshMcLennanCompaniesInc.


Revenue
Period End2020-09-302020-06-302020-03-31
Value0.00.017000
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.0365.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.00.0365.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:MarshMcLennanCompaniesInc.0.00.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems

mmc:CorporateAndEliminations


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-16.0-15.0-18.0-19.0-30.0-22.0-17.0-23.0-25.0-25.0-18.0-15.0-12.0-12.0-16.0-9.0-13.0-12.0-11.0-10.0-13.0-10.0-10.0-9.0-12.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.3-0.3-0.4-0.5-0.7-0.5-0.4-0.6-0.6-0.6-0.5-0.4-0.3-0.3-0.4-0.3-0.4-0.3-0.3-0.3-0.4-0.3-0.3-0.3-0.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.3-0.3-0.4-0.5-0.7-0.5-0.4-0.6-0.6-0.6-0.5-0.4-0.3-0.3-0.4-0.3-0.4-0.3-0.3-0.3-0.4-0.3-0.3-0.3-0.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:CorporateAndEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value503350984434398742194673428139914374409637303519374640123701335035083515337531453389334633483124323732243257315133113271312529413098313330082856
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.3100.3100.4100.5100.7100.5100.4100.6100.6100.6100.5100.4100.3100.3100.4100.3100.4100.3100.3100.3100.4100.3100.3100.3100.4100.3100.3100.3100.3100.2100.3100.3100.3100.2100.2100.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.3100.3100.4100.5100.7100.5100.4100.6100.6100.6100.5100.4100.3100.3100.4100.3100.4100.3100.3100.3100.4100.3100.3100.3100.4100.3100.3100.3100.3100.2100.3100.3100.3100.2100.2100.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination, mmc:ConsultingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1215181926211620222417111211168.09.01210.09.010.09.09.09.08.08.010.010.08.07.09.08.07.07.05.010.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.30.40.50.60.50.40.50.50.60.50.30.30.30.40.20.30.30.30.30.30.30.30.30.20.20.30.30.20.20.30.30.20.20.20.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.30.40.50.60.50.40.50.50.60.50.30.30.30.40.20.30.30.30.30.30.30.30.30.20.20.30.30.20.20.30.30.20.20.20.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:IntersegmentElimination mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-09-30
Value4.00.00.04.01.01.03.03.01.01.04.00.01.00.01.04.00.01.01.03.01.01.00.04.01.01.00.03.00.01.01.03.01.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.00.00.10.00.00.10.10.00.00.10.00.00.00.00.10.00.00.00.10.00.00.00.10.00.00.00.10.00.00.00.10.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.00.00.10.00.00.10.10.00.00.10.00.00.00.00.10.00.00.00.10.00.00.00.10.00.00.00.10.00.00.00.10.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:IntersegmentElimination mmc:RiskandInsuranceServicesSegment100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:ConsultingSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value189218731902169616161762188517851800167318051656165016681739158715921526158215131539147816161540148714211566154115201432149214371410136214391405
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax37.736.843.142.738.637.944.245.041.441.148.647.344.241.747.247.545.643.647.048.345.644.348.449.446.144.248.249.146.143.947.949.045.743.647.949.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax37.736.843.142.738.637.944.245.041.441.148.647.344.241.747.247.545.643.647.048.345.644.348.449.446.144.248.249.146.143.947.949.045.743.647.949.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value314132252532229126032911239622062574242319251863209623441962176319161989179316321850186817321584175018031691161017911839163315041688177115691451
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.663.457.357.762.162.656.255.659.259.551.953.256.158.653.252.854.856.853.352.154.856.051.950.954.356.152.151.354.356.352.451.354.756.752.351.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.663.457.357.762.162.656.255.659.259.551.953.256.158.653.252.854.856.853.352.154.856.051.950.954.356.152.151.354.356.352.451.354.756.752.351.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments, us-gaap:Subsegments

us-gaap:OperatingSegments, mmc:ConsultingSegment, mmc:MercerConsultingGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302012-12-312012-09-30
Value127412881312121611491251132612801260115512281175115811711193114911091077109611091079103911401090104610611054
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax25.425.329.730.627.426.931.132.329.028.433.133.531.029.332.434.431.730.732.635.432.031.134.235.032.435.337.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax25.425.329.730.627.426.931.132.329.028.433.133.531.029.332.434.431.730.732.635.432.031.134.235.032.435.337.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:ConsultingSegment mmc:MercerConsultingGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:ConsultingSegment, mmc:OliverWymanGroupConsultingGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302012-12-312012-09-30
Value618585590480467511559505540518577481492497546438483449486404460439476450441378351
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.311.513.412.111.111.013.112.712.412.715.513.713.212.414.813.113.812.814.412.913.613.214.314.413.712.612.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.311.513.412.111.111.013.112.712.412.715.513.713.212.414.813.113.812.814.412.913.613.214.314.413.712.612.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:ConsultingSegment mmc:OliverWymanGroupConsultingGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment, mmc:GuyCarpenterReinsuranceGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302012-12-312012-09-30
Value489896163276435835161283400670108220336641242273295387223262286375217262276199250
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.717.63.77.010.418.03.87.19.216.52.96.39.016.06.68.28.411.06.68.48.511.26.58.48.66.68.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.717.63.77.010.418.03.87.19.216.52.96.39.016.06.68.28.411.06.68.48.511.26.58.48.66.68.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:RiskandInsuranceServicesSegment mmc:GuyCarpenterReinsuranceGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment, mmc:MarshInsuranceGroup


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302012-12-312012-09-30
Value265223292369201521682076223519232174175318171643176017031720149016211602157013701564149315151322147413701201
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax52.945.853.650.851.844.652.448.550.043.148.946.947.142.646.744.646.445.746.743.746.344.845.442.445.745.642.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax52.945.853.650.851.844.652.448.550.043.148.946.947.142.646.744.646.445.746.743.746.344.845.442.445.745.642.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:OperatingSegments mmc:RiskandInsuranceServicesSegment mmc:MarshInsuranceGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

mmc:Career, mmc:ConsultingSegment


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
Value187178238220156173250247189170236235177164
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.73.55.45.53.73.75.96.24.34.26.46.74.74.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.73.55.45.53.73.75.96.24.34.26.46.74.74.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:Career mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:Health, mmc:ConsultingSegment


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
Value462487445430432486455441458442449415429442
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.29.610.110.810.310.410.711.110.510.912.111.811.511.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.29.610.110.810.310.410.711.110.510.912.111.811.511.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:Health mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:Wealth, mmc:ConsultingSegment


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
Value625623629566561592621592613543543525552565
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.512.314.214.313.412.714.614.914.113.314.615.014.814.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.512.314.214.313.412.714.614.914.113.314.615.014.814.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:Wealth mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments

mmc:ConsultingSegment


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
Value18921873190216961616176218851785180016731805165616501668
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax37.736.843.142.738.637.944.245.041.441.148.647.344.241.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax37.736.843.142.738.637.944.245.041.441.148.647.344.241.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:RiskandInsuranceServicesSegment


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
Value31413225253222912603291123962206257424231925186320962344
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.663.457.357.762.162.656.255.659.259.551.953.256.158.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.663.457.357.762.162.656.255.659.259.551.953.256.158.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementBusinessSegments, us-gaap:Subsegments

mmc:ConsultingSegment, mmc:MercerConsultingGroup


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
Value12741288131212161149125113261280126011551228117511581171
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax25.425.329.730.627.426.931.132.329.028.433.133.531.029.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax25.425.329.730.627.426.931.132.329.028.433.133.531.029.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:ConsultingSegment mmc:MercerConsultingGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:ConsultingSegment, mmc:OliverWymanGroupConsultingGroup


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
Value618585590480467511559505540518577481492497
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.311.513.412.111.111.013.112.712.412.715.513.713.212.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.311.513.412.111.111.013.112.712.412.715.513.713.212.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:ConsultingSegment mmc:OliverWymanGroupConsultingGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:RiskandInsuranceServicesSegment, mmc:GuyCarpenterReinsuranceGroup


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
Value488895162274433827152273392663102215332637
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.717.63.76.910.317.83.66.99.016.32.76.18.915.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax9.717.63.76.910.317.83.66.99.016.32.76.18.915.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:RiskandInsuranceServicesSegment mmc:GuyCarpenterReinsuranceGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:RiskandInsuranceServicesSegment, mmc:MarshGuyCarpenter


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
Value31383220252622832594288823712175254824001906184520812331
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.563.357.257.561.962.155.654.858.659.051.352.755.758.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax62.563.357.257.561.962.155.654.858.659.051.352.755.758.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:RiskandInsuranceServicesSegment mmc:MarshGuyCarpenter100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:RiskandInsuranceServicesSegment, mmc:MarshInsuranceGroup


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
Value26502325236420092161206122191902215617371804163017491694
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax52.845.753.550.651.644.352.047.949.642.748.646.546.842.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax52.845.753.550.651.644.352.047.949.642.748.646.546.842.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:RiskandInsuranceServicesSegment mmc:MarshInsuranceGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

mmc:International, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value124612011098883994108310728881059876812704808
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.823.624.922.323.723.325.122.424.421.521.920.121.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.823.624.922.323.723.325.122.424.421.521.920.121.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:International mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:UnitedStatesandCanada, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value14041124126611261167978114710141097
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax28.022.128.728.427.921.026.925.625.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax28.022.128.728.427.921.026.925.625.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax mmc:UnitedStatesandCanada mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value347274269254298238255242291165169167183
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax6.95.46.16.47.15.16.06.16.74.14.64.84.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax6.95.46.16.47.15.16.06.16.74.14.64.84.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax srt:AsiaPacific mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:LatinAmerica, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10390141939991156110116781219699
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.11.83.22.32.42.03.72.82.71.93.32.72.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.11.83.22.32.42.03.72.82.71.93.32.72.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax srt:LatinAmerica mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EMEA, mmc:RiskandInsuranceServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value796837688536597754661536652633522441526
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax15.916.515.613.514.316.215.513.515.015.514.112.614.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax15.916.515.613.514.316.215.513.515.015.514.112.614.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:EMEA mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3295332273330493268132169313913135731097321163013721578211292115921379204291969019442189691819018358180761812818216177241741316834178401798717588165771698016976158381553716288157361520215010154541512115451150731531015337
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

mmc:CorporateAndEliminations


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2866-4463.0-2293.0-4261.0-3308.0-1559.0-334.0
Percentage of Assets8.7-14.2-10.6-20.9-18.2-8.6-1.9
Percentage of Assets8.7-14.2-10.6-20.9-18.2-8.6-1.9
Percentage of Assets mmc:CorporateAndEliminations100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value30183358202387124690214981977518127165431503513922
Percentage of Assets91.3114.2110.6120.9118.2108.6101.697.492.390.1
Percentage of Assets91.3114.2110.6120.9118.2108.6101.697.492.390.1
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, mmc:ConsultingSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9571972280038200677064855916517852034820
Percentage of Assets29.031.037.140.137.235.633.230.531.931.2
Percentage of Assets29.031.037.140.137.235.633.230.531.931.2
Percentage of Assets us-gaap:OperatingSegments mmc:ConsultingSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value206122609815868164901472813290122111136598329102
Percentage of Assets62.483.273.580.781.073.068.466.960.458.9
Percentage of Assets62.483.273.580.781.073.068.466.960.458.9
Percentage of Assets us-gaap:OperatingSegments mmc:RiskandInsuranceServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3295332273330493268132169313913135731097321163013721578211292115921379204291969019442189691819018358180761812818216177241741316834178401798717588165771698016976158381553716288157361520215010154541512115451150731531015337
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value757375498155831280977749706870567526126755934596661756270556252155182498148845209493047985044552652995177605568526414556363006161521450975963565151955035564850305186493652764931
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.023.424.725.425.224.722.522.723.442.127.528.229.229.327.226.526.726.326.828.427.326.527.731.230.430.833.938.136.533.637.136.332.932.836.635.934.233.536.533.333.632.734.532.2

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value888112020892388171114801155121312941117106695110361168120510789669301026138897491813741330930110419582649200513802303217412301263230120441504141021131714165913301894169515101167177716852133
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.56.37.35.34.73.73.94.03.74.94.54.95.55.95.55.04.95.67.65.45.17.57.55.36.611.014.711.48.313.612.87.88.114.113.09.99.413.711.310.78.812.40.00.00.011.60.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value88811202089238817111480115512131294111710669511036116812051026
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.56.37.35.34.73.73.94.03.74.94.54.95.55.95.6

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value58395597532652365647555852365198555346304317447646014562413339093984379536433603372136473471351736593380337734963706346233103294334531763058305931023008290629253111321230352724
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.717.316.116.017.617.716.716.717.315.420.021.221.721.320.219.920.520.020.019.620.620.119.119.821.020.118.919.421.120.919.519.421.120.418.819.420.420.018.819.320.121.319.817.8

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value846832740688739711677645679569551539538540224228232256215218235233199213235227199229223237205234229222194214208227253391416394347279
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.62.22.12.32.32.22.12.11.92.62.62.52.51.11.21.21.31.21.21.31.31.11.21.31.31.11.31.31.41.21.41.41.41.21.41.41.51.62.62.72.62.31.8

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value301528592543253824082394244824252391227322332182
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.19.111.812.413.213.113.714.314.714.714.614.2

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:FurnitureAndFixtures


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
Value13261268115911791113113311931201116811011079
Percentage of PropertyPlantAndEquipmentGross44.044.445.646.546.247.348.749.548.848.448.3
Percentage of Assets4.04.05.45.86.16.26.77.17.27.17.0
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LandAndBuilding


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
Value379377377385389396401408412405402
Percentage of PropertyPlantAndEquipmentGross12.613.214.815.216.216.516.416.817.217.818.0
Percentage of Assets1.11.21.71.92.12.22.22.42.52.62.6
Percentage of Assets us-gaap:LandAndBuilding0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


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
Value131012141007974906865854816811767752
Percentage of PropertyPlantAndEquipmentGross43.442.539.638.437.636.134.933.633.933.733.7
Percentage of Assets4.03.94.74.85.04.74.84.85.05.04.9
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value23172197215921132052201220011944201818891842186318571889182618221758172916831694166616511621165716631635163916551663161615971611159515861582155115351535146914831366146114111332
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.06.86.56.56.46.46.46.36.36.38.58.88.88.88.99.39.09.19.39.29.29.18.99.39.69.79.29.29.59.79.49.510.110.29.79.910.110.29.59.88.89.79.28.7

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value189100869117486798410051484743454742404031323433303124242222202219181718191917171518161614161917
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value816830856864866850858816799716701707698713712728721722725717736757773786807794809822843825828824804793809807800795804804823828822850873
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.62.62.62.72.72.72.62.52.43.23.33.33.33.53.73.73.84.03.94.14.24.24.44.64.74.54.64.85.04.94.95.15.15.05.15.35.35.25.35.35.55.45.50.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:GB


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value115149919194115120121121133
Percentage of PropertyPlantAndEquipmentNet13.417.413.012.813.014.914.814.615.016.5
Percentage of Assets0.30.50.40.40.50.60.70.70.70.9
Percentage of Assets country:GB0.00.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value492462403399412460483494494505
Percentage of PropertyPlantAndEquipmentNet57.553.857.556.056.859.559.759.761.162.8
Percentage of Assets1.51.51.92.02.32.52.72.93.03.3
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.0

mmc:OtherGeographicAreas


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value707874879092847769646773
Percentage of PropertyPlantAndEquipmentNet8.29.110.612.212.411.910.49.38.58.08.28.6
Percentage of Assets0.20.20.30.40.50.50.50.50.40.40.40.5
Percentage of Assets mmc:OtherGeographicAreas0.00.00.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value105101747876
Percentage of PropertyPlantAndEquipmentNet12.311.810.611.010.5
Percentage of Assets0.30.30.30.40.4
Percentage of Assets srt:AsiaPacific0.00.00.00.00.0

srt:Europe


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7468595753
Percentage of PropertyPlantAndEquipmentNet8.67.98.48.07.3
Percentage of Assets0.20.20.30.30.3
Percentage of Assets srt:Europe0.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value157751545815517150341479714412146711428614479973995999435917791949089910088218769836979757945795078897506738171607241717972307159689368656804675267926679664366756562653965956557642062866157608559906825
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets47.947.947.046.046.045.946.845.945.132.344.544.743.443.044.546.245.446.246.043.444.043.943.342.342.442.540.639.941.143.240.640.443.043.541.742.443.744.542.543.242.743.541.90.00.00.039.10.0

us-gaap:Goodwill us-gaap:BusinessAcquisition

mmc:CurrentFiscalPeriodAcquisitions


Goodwillus-gaap:
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value3385934624661424962489597626410116155515333703635567462617833561881247235033426711393
Percentage of Goodwill2.13.83.13.11.034.733.81.06.54.31.30.26.15.94.24.16.60.90.80.89.94.72.50.26.54.94.63.71.61.4
Percentage of Assets1.01.81.41.40.516.015.20.32.91.90.50.12.72.71.91.93.10.40.30.34.32.01.10.12.61.91.91.60.70.5
Percentage of Assets mmc:CurrentFiscalPeriodAcquisitions0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

mmc:ConsultingSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value39003800380040003600310030003000290028002800260027002700260026002500250025002300230023002300220022002200220022002200220022002200
Percentage of Goodwill24.724.624.526.624.321.520.421.020.028.829.227.629.429.428.628.628.328.529.928.828.928.929.229.329.830.730.430.630.430.731.932.0
Percentage of Assets11.811.811.512.211.29.99.69.69.09.313.012.312.812.612.713.212.913.213.712.512.712.712.612.412.613.112.312.212.513.313.013.0
Percentage of Assets mmc:ConsultingSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

mmc:RiskandInsuranceServicesSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value11900117001170011000112001130011700113001160069006800680065006500650065006300630059005700560057005600530052005000500050005000490047004700
Percentage of Goodwill75.475.775.473.275.778.479.779.180.170.870.872.170.870.771.571.471.471.870.571.570.571.771.070.670.569.869.169.669.268.468.268.5
Percentage of Assets36.136.335.433.734.836.037.336.336.122.931.532.230.730.431.833.032.433.232.431.031.031.430.729.929.929.728.027.828.429.627.727.7
Percentage of Assets mmc:RiskandInsuranceServicesSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value269927741437127411261036692
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.86.76.26.25.73.9

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value271726032699271127612663277428693083146414371329123412561274132012331291112690795510351036836774672692635641640472488477447469434443454401394405436403229
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.18.28.38.68.58.89.29.64.96.76.35.85.96.26.76.36.86.24.95.35.75.74.74.44.03.93.53.63.92.82.93.02.92.92.82.93.02.62.62.62.92.61.5

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerLists


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-06-302016-03-312015-12-312014-12-31
Value2543259713311154998870940934609
Percentage of FiniteLivedIntangibleAssetsNet94.293.692.690.688.691.190.890.288.0
Percentage of Assets7.78.36.25.65.54.85.25.13.4
Percentage of Assets us-gaap:CustomerLists0.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value256224572543254925902499259727022899136113311226113111401154119211281169998831934
Percentage of FiniteLivedIntangibleAssetsNet94.394.494.294.093.893.893.694.294.093.092.692.291.790.890.690.391.590.588.691.690.2
Percentage of Assets7.87.67.77.88.18.08.38.79.04.56.25.85.35.35.66.15.86.25.54.55.1
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value15514615616217116417716718410310610310311612012810512212876859510283
Percentage of FiniteLivedIntangibleAssetsNet5.75.65.86.06.26.26.45.86.07.07.47.88.39.29.49.78.59.511.48.48.99.29.812.0
Percentage of Assets0.50.50.50.50.50.50.60.50.60.30.50.50.50.50.60.70.50.60.70.40.50.50.60.5
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value19831824189418841882188519211957201616250.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets6.05.75.75.85.96.06.16.36.35.40.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value150914821458142814761519175716531764142315391381153515351430122515291325121312121220129011771221121912091200976934937882838742739772748828841795793914881919924
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.64.64.44.44.64.85.65.35.54.77.16.57.37.27.06.27.97.06.76.66.77.16.56.97.07.26.75.45.35.75.24.94.74.84.74.85.45.65.15.25.95.86.06.0

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value7674725872181919146
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.10.10.10.7

us-gaap:EquitySecuritiesFvNi us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherAssets, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value63605945593.04.05.0133
Percentage of EquitySecuritiesFvNi82.981.181.977.681.916.721.126.391.1
Percentage of Assets0.20.20.20.10.20.00.00.00.6
Percentage of Assets us-gaap:OtherAssets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherAssets, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value63605945593.04.05.0133
Percentage of EquitySecuritiesFvNi82.981.181.977.681.916.721.126.391.1
Percentage of Assets0.20.20.20.10.20.00.00.00.6
Percentage of Assets us-gaap:OtherAssets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:InvestmentType

us-gaap:EquitySecurities


Equity
Period End2020-12-312019-12-312018-12-31
Value7219146
Percentage of EquitySecuritiesFvNi100.0100.0100.0
Percentage of Assets0.20.10.7
Percentage of Assets us-gaap:EquitySecurities0.00.00.0

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value283029403050266226682611274624792600224422342293224623432083200220272033196918621868187918861759174816991883180018491895186118301721
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.69.19.28.18.38.38.88.08.17.410.410.910.611.010.210.210.410.710.810.110.310.410.49.910.010.110.610.010.511.411.010.810.6

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value3533682473183672561792511652561571792162611992291932021462131821281541072091361781992091761481481711481101541118063801104962
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.10.71.01.10.80.60.80.50.80.70.81.01.21.01.21.01.10.81.21.00.70.80.61.20.81.01.11.21.10.90.91.11.00.71.00.70.50.40.50.70.30.4

Debt Current

us-gaap:DebtCurrent

us-gaap:DebtCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value516101551712161216240912151139166315623146384395122621316241231226226126512621116111640333432334
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.63.11.63.73.87.73.93.75.25.21.53.02.12.41.30.10.82.21.71.41.41.50.10.30.60.40.13.61.92.62.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
Period End2021-03-312020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302010-12-31
Value2382372310.02322322110.02112121930.01931941760.01781781630.01631661510.01531541390.01381391281261261211190.0
Percentage of DividendsPayableCurrent100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.70.70.00.70.70.70.01.01.00.90.01.01.00.90.01.01.00.90.00.91.00.90.00.90.90.80.00.80.90.80.80.80.80.80.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value58166123655665305928685966796204638257394924472742164122426238143649358840823825350431593708340432082753370541303530334338093893296428403564350631703032373933843242288931053715
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.619.019.820.018.421.921.320.019.919.022.822.419.919.320.919.418.818.922.420.819.417.420.419.218.416.420.823.020.120.222.422.918.718.321.922.320.920.224.222.421.019.220.324.2

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-07-152011-06-302011-03-312010-12-312009-12-31
Value516101551712167167161215514814814314563264263262131226226226226113126261611164033333233458310.010.02602592592592602606002602618.0558
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.63.11.63.72.22.33.91.72.52.71.52.71.21.21.30.10.11.41.41.41.40.10.10.30.40.40.13.61.92.02.03.40.10.11.61.61.71.71.71.70.01.71.70.13.6

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
Value3423423423353323343423413472910.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.01.11.01.01.01.11.11.11.11.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312014-12-31
Value10773112571131312748127011194711956119431227358243368
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.734.934.239.039.538.138.138.438.227.018.9

us-gaap:LongTermDebt us-gaap:DebtInstrument

mmc:A1.349SeniorDebtObligationsDue2026


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6606506776416156056096036180.0
Percentage of LongTermDebt6.15.86.05.04.85.15.15.05.00.0
Percentage of Assets2.02.02.02.01.91.91.91.91.90.0
Percentage of Assets mmc:A1.349SeniorDebtObligationsDue20260.00.00.00.00.00.00.00.00.00.0

mmc:A1.979SeniorDebtObligationsDue2030


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6456386646356126046076026170.0
Percentage of LongTermDebt6.05.75.95.04.85.15.15.05.00.0
Percentage of Assets2.02.02.01.91.91.91.91.91.90.0
Percentage of Assets mmc:A1.979SeniorDebtObligationsDue20300.00.00.00.00.00.00.00.00.00.0

mmc:A2.250SeniorDebtObligationsDue2030


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value7387387377377370.0
Percentage of LongTermDebt6.96.66.55.85.80.0
Percentage of Assets2.22.32.22.32.30.0
Percentage of Assets mmc:A2.250SeniorDebtObligationsDue20300.00.00.00.00.00.0

mmc:A225SeniorDebtObligationsDue2030


Long
Period End2020-12-31
Value737
Percentage of LongTermDebt6.5
Percentage of Assets2.2
Percentage of Assets mmc:A225SeniorDebtObligationsDue20300.0

mmc:A3.50SeniorDebtObligationsDue2020


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value7006996996986986970.0
Percentage of LongTermDebt5.55.55.95.85.85.70.0
Percentage of Assets2.12.22.22.22.22.20.0
Percentage of Assets mmc:A3.50SeniorDebtObligationsDue20200.00.00.00.00.00.00.0

mmc:A3.50SeniorDebtObligationsDue2025


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value498498498497497497497497497496
Percentage of LongTermDebt4.64.44.43.93.94.24.24.24.08.5
Percentage of Assets1.51.51.51.51.51.61.61.61.52.3
Percentage of Assets mmc:A3.50SeniorDebtObligationsDue20250.00.00.00.00.00.00.00.00.00.0

mmc:A3.75SeniorDebtObligationsDue2026


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value598598597597597597597597597596
Percentage of LongTermDebt5.65.35.34.74.75.05.05.04.910.2
Percentage of Assets1.81.91.81.81.91.91.91.91.92.8
Percentage of Assets mmc:A3.75SeniorDebtObligationsDue20260.00.00.00.00.00.00.00.00.00.0

mmc:A3.875SeniorDebtObligationsDue2024


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9969959959959949949949939930.0
Percentage of LongTermDebt9.28.88.87.87.88.38.38.38.10.0
Percentage of Assets3.03.13.03.03.13.23.23.23.10.0
Percentage of Assets mmc:A3.875SeniorDebtObligationsDue20240.00.00.00.00.00.00.00.00.00.0

mmc:A4.75SeniorDebtObligationsDue2039


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4954954954954954944944944940.0
Percentage of LongTermDebt4.64.44.43.93.94.14.14.14.00.0
Percentage of Assets1.51.51.51.51.51.61.61.61.50.0
Percentage of Assets mmc:A4.75SeniorDebtObligationsDue20390.00.00.00.00.00.00.00.00.00.0

mmc:A4.90SeniorDebtObligationsDue2049


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1237123712371237123712371237123712360.0
Percentage of LongTermDebt11.511.010.99.79.710.410.310.410.10.0
Percentage of Assets3.83.83.73.83.83.93.94.03.80.0
Percentage of Assets mmc:A4.90SeniorDebtObligationsDue20490.00.00.00.00.00.00.00.00.00.0

mmc:A500MillionTwoYearTermLoanFacility


Long
Period End2020-09-302020-06-302020-03-312019-12-31
Value5005005000.0
Percentage of LongTermDebt3.93.94.20.0
Percentage of Assets1.51.61.60.0
Percentage of Assets mmc:A500MillionTwoYearTermLoanFacility0.00.00.00.0

mmc:FloatingRateSeniorDebtObligationsDue2021


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2992992992982982980.0
Percentage of LongTermDebt2.32.42.52.52.52.40.0
Percentage of Assets0.90.91.01.01.00.90.0
Percentage of Assets mmc:FloatingRateSeniorDebtObligationsDue20210.00.00.00.00.00.00.0

mmc:MortgageDue2035


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value324327331334338341345347351358
Percentage of LongTermDebt3.02.92.92.62.72.92.92.92.96.1
Percentage of Assets1.01.01.01.01.11.11.11.11.11.7
Percentage of Assets mmc:MortgageDue20350.00.00.00.00.00.00.00.00.00.0

mmc:OtherDebtInstruments


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5.04.05.04.05.06.07.05.04.04.0
Percentage of LongTermDebt0.00.00.00.00.00.10.10.00.00.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets mmc:OtherDebtInstruments0.00.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationDue2047


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value493493493493493493492492492492
Percentage of LongTermDebt4.64.44.43.93.94.14.14.14.08.4
Percentage of Assets1.51.51.51.51.51.61.61.61.52.3
Percentage of Assets mmc:SeniorDebtObligationDue20470.00.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligations3.30Due2023


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value349349349349349349349348348348
Percentage of LongTermDebt3.23.13.12.72.72.92.92.92.86.0
Percentage of Assets1.11.11.11.11.11.11.11.11.11.6
Percentage of Assets mmc:SeniorDebtObligations3.30Due20230.00.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationsDue2021


Long
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value500500500499499499499499499
Percentage of LongTermDebt4.44.43.93.94.24.24.24.18.6
Percentage of Assets1.51.51.51.61.61.61.61.62.3
Percentage of Assets mmc:SeniorDebtObligationsDue20210.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationsDue2022


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value499499499499499498498498498497
Percentage of LongTermDebt4.64.44.43.93.94.24.24.24.18.5
Percentage of Assets1.51.51.51.51.61.61.61.61.62.3
Percentage of Assets mmc:SeniorDebtObligationsDue20220.00.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationsDue2024MemberDomain


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value598598598597597597597597
Percentage of LongTermDebt5.34.74.75.05.05.04.910.3
Percentage of Assets1.81.81.91.91.91.91.92.8
Percentage of Assets mmc:SeniorDebtObligationsDue2024MemberDomain0.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationsDue2029


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1499149914991499149914991499149914990.0
Percentage of LongTermDebt13.913.313.311.811.812.512.512.612.20.0
Percentage of Assets4.54.64.54.64.74.84.84.84.70.0
Percentage of Assets mmc:SeniorDebtObligationsDue20290.00.00.00.00.00.00.00.00.00.0

mmc:SeniorDebtObligationsDue2033


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value298298298298298298298298298297
Percentage of LongTermDebt2.82.62.62.32.32.52.52.52.45.1
Percentage of Assets0.90.90.90.90.90.91.01.00.91.4
Percentage of Assets mmc:SeniorDebtObligationsDue20330.00.00.00.00.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1025710242107961153211985112311074111429114595510
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.131.732.735.337.335.834.336.835.725.5

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2020-12-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1079610741114725510551258135815522554755479547944954494449647484402442238253828337633793212261926212623270327052658266026632664266826702773277130263034
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.734.338.125.526.127.527.225.627.828.228.924.724.524.926.224.224.922.022.718.918.818.315.815.415.517.117.416.316.917.517.717.317.717.918.419.819.8

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet us-gaap:BalanceSheetLocation

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherNoncurrentLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value561565421
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0
Percentage of Assets1.71.82.0
Percentage of Assets us-gaap:OtherNoncurrentLiabilities0.00.00.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value25392594266221632197224823361998204418741911172717681842188819481986202520761969200420422058211420722070224410941123113511501975197919932094159415741606165511481178122012111182
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.78.08.16.66.87.27.46.46.46.28.98.28.48.69.29.910.210.711.410.711.111.311.311.911.912.312.66.16.46.86.811.612.512.812.910.110.410.710.77.67.68.17.97.7

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-31
Value28282932
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent1.11.21.51.7
Percentage of Assets0.10.10.10.2
Percentage of Assets country:US us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.0

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-31
Value1784157814391407
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent67.067.675.374.5
Percentage of Assets5.45.06.76.9
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.00.0

us-gaap:ForeignPlan, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7058546478
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent2.62.52.83.43.8
Percentage of Assets0.20.20.30.30.4
Percentage of Assets us-gaap:ForeignPlan us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value727634345343414
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent27.327.118.118.219.9
Percentage of Assets2.22.01.61.72.3
Percentage of Assets us-gaap:ForeignPlan us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1561621561611661561501772727773858181838581878083819289958991798277827078677364707167575853584735
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.50.50.50.60.80.30.30.40.40.40.40.40.40.50.40.50.40.50.50.50.50.50.40.50.40.50.40.50.40.50.40.40.50.40.40.40.30.40.30.2

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1720151414851450141513611397138815941194136213221262126713111006949958957999104510891128108310799861041111411291083105298590685390692098597198410081027105411231025
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.24.74.54.44.44.34.54.55.04.06.36.36.05.96.45.14.95.15.35.45.86.06.26.16.25.95.86.26.46.56.25.85.75.55.65.86.56.56.46.76.67.07.36.7

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
Value19921850192419021902189819261957198115900.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets6.05.75.85.85.96.06.16.36.25.30.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value340332380363
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets1.01.01.11.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value297289331315
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.90.91.01.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value265257288270
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.80.80.90.8

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value244235256242
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0
Percentage of Assets0.70.70.80.7

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value901678905855
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0
Percentage of Assets2.72.12.72.6

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2334219222662237223422322268229823281881
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.16.86.96.86.97.17.27.47.26.2

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value2643248025702547
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets8.07.77.87.8

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value309288304310
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.90.90.90.9

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302010-03-312009-12-312008-12-31
Value102649596926087528392745179437797833779867584753877978021744271317074661962726754670567716602634368726863713379158228804379757120684667136606658063446265594064656780668764156043601458635760
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.129.728.026.826.123.725.325.126.026.535.135.736.837.536.436.236.434.934.536.837.137.436.235.839.540.840.044.046.848.547.041.943.243.240.641.841.741.738.442.843.944.441.90.00.038.20.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-4102.0-4122.0-4126.0-3409.0-3346.0-3374.0-3512.0-2871.0-2942.0-2990.0-2953.0-2892.0-3232.0-3124.0-3393.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-40.0-43.0-44.6-39.0-39.9-45.3-44.2-36.8-35.3-37.4-38.9-38.9-51.5-47.3-47.6
Percentage of Assets-12.4-12.8-12.5-10.4-10.4-10.7-11.2-9.2-9.2-9.9-13.7-14.2-17.8-17.1-19.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-5153.0-5197.0-5110.0-5148.0-5582.0-5847.0-5055.0-4931.0-4527.0-4590.0-4647.0-4488.0-4265.0-3905.0-4043.0-4560.0-4541.0-4837.0-5093.0-4289.0-4301.0-4097.0-4220.0-4122.0-3923.0-4090.0-3847.0-2895.0-2607.0-2708.0-2621.0-3213.0-3435.0-3379.0-3307.0-3005.0-3115.0-3023.0-3188.0-2333.0-2078.0-2183.0-2300.0-2138.0-2406.0-2246.0-2171.0-2098.0-351.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-50.2-54.2-55.2-58.8-66.5-78.5-63.6-63.2-54.3-57.5-61.3-59.5-54.7-48.7-54.3-63.9-64.2-73.1-81.2-63.5-64.1-60.5-63.9-65.0-57.1-59.6-53.9-36.6-31.7-33.7-32.9-45.1-50.2-50.3-50.1-45.7-49.1-48.3-53.7-36.1-30.6-32.6-35.90.0-39.8-37.3-37.0-36.40.0
Percentage of Assets-15.6-16.1-15.5-15.8-17.4-18.6-16.1-15.9-14.1-15.2-21.5-21.2-20.2-18.3-19.8-23.2-23.4-25.5-28.0-23.4-23.8-22.6-23.2-23.3-22.5-24.3-21.6-16.1-14.8-16.3-15.4-18.9-21.7-21.7-20.3-19.1-20.5-20.1-20.6-15.4-13.4-14.5-15.00.00.00.0-14.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value-1051.0-1075.0-984.0-1739.0-2236.0-2473.0-1543.0-2060.0-1585.0-1600.0-1694.0-1165.0-1880.0-1102.0-459.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-10.2-11.2-10.6-19.9-26.6-33.2-19.4-26.4-19.0-20.0-22.3-15.7-30.0-16.7-6.4
Percentage of Assets-3.2-3.3-3.0-5.3-7.0-7.9-4.9-6.6-4.9-5.3-7.9-5.7-10.3-6.0-2.6
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312008-12-31
Value945851943882814746862796736681817771732682784783763733842812789777861851842837930922914909102810101002993110710761053101811561123109210501185115912111245
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest9.28.910.210.19.710.010.910.28.88.510.810.29.48.510.511.010.811.113.412.011.811.513.013.412.312.213.011.611.111.312.914.214.614.816.816.416.616.219.517.416.115.718.50.020.721.6
Percentage of Assets2.92.62.92.72.52.42.72.62.32.33.83.63.53.23.84.03.93.94.64.44.44.34.74.84.85.05.25.15.25.56.15.96.36.46.86.86.96.87.57.47.17.07.70.07.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value15616215616116615615017727277738581818385818780838192899589917982778270786773647071675758535847454337353831
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.51.71.71.82.02.11.92.33.31.01.01.11.01.01.11.21.11.31.31.21.21.41.31.51.31.31.11.00.91.00.91.11.01.11.01.11.11.11.00.90.80.90.70.00.70.60.60.70.0
Percentage of Assets0.50.50.50.50.50.50.50.60.80.30.30.40.40.40.40.40.40.50.40.50.40.50.50.50.50.50.40.50.40.50.40.50.40.50.40.40.50.40.40.40.30.40.30.00.00.00.20.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value17597167801627215902160601549015199148111474114642143471419614131138121314013113129151260612388119531175111460113021092810768105151033510042989796209452915190368786862883718257805379497696768875287436723671877062703372377732
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest171.4174.9175.7181.7191.4207.9191.4190.0176.8183.3189.2188.3181.2172.2176.6183.9182.6190.5197.5177.0175.3169.3171.2172.3156.7153.2144.9126.9120.3119.6118.5128.5132.0130.9130.6127.2130.2128.5133.8119.0113.4112.6115.90.0118.9117.4120.0125.60.0
Percentage of Assets53.452.049.248.749.949.348.547.645.948.666.567.266.864.664.366.666.466.568.165.165.063.262.061.761.862.557.955.856.358.055.753.957.156.553.053.254.353.751.450.949.849.948.60.00.00.045.90.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-3842.0-3561.0-3562.0-3606.0-3627.0-3655.0-3774.0-3617.0-3446.0-3385.0-3567.0-3587.0-3443.0-3210.0-3083.0-2851.0-2705.0-2531.0-2506.0-2366.0-2176.0-2022.0-1991.0-1970.0-1465.0-1051.0-925.0-797.0-614.0-421.0-515.0-467.0-385.0-321.0-447.0-493.0-483.0-411.0-595.0-640.0-536.0-327.0-514.0-448.0-491.0-509.0-806.0-1223.0-1362.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-37.4-37.1-38.5-41.2-43.2-49.1-47.5-46.4-41.3-42.4-47.0-47.6-44.2-40.0-41.4-40.0-38.2-38.2-40.0-35.0-32.5-29.9-30.2-31.1-21.3-15.3-13.0-10.1-7.5-5.2-6.5-6.6-5.6-4.8-6.8-7.5-7.6-6.6-10.0-9.9-7.9-4.9-8.00.0-8.1-8.5-13.7-21.20.0
Percentage of Assets-11.7-11.0-10.8-11.0-11.3-11.6-12.0-11.6-10.7-11.2-16.5-17.0-16.3-15.0-15.1-14.5-13.9-13.3-13.8-12.9-12.0-11.2-10.9-11.1-8.4-6.2-5.2-4.4-3.5-2.5-3.0-2.8-2.4-2.1-2.7-3.1-3.2-2.7-3.9-4.2-3.5-2.2-3.40.00.00.0-5.30.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value9458519438828147468627967366818177717326827847837637338428127897778618518428379309229149091028101010029931107107610531018115611231092105011851211
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.92.62.92.72.52.42.72.62.32.33.83.63.53.23.84.03.93.94.64.44.44.34.74.84.85.05.25.15.25.56.15.96.36.46.86.86.96.87.57.47.17.07.77.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value175971678016272159021606015490151991481114741146421434714196141311381213140131131291512606123881195311751114601130210928107681051510335100429897962094529151903687868628837182578053794976967688752874367033
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets53.452.049.248.749.949.348.547.645.948.666.567.266.864.664.366.666.466.568.165.165.063.262.061.761.862.557.955.856.358.055.753.957.156.553.053.254.353.751.450.949.849.948.645.9

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-5153.0-5197.0-5110.0-5148.0-5582.0-5847.0-5055.0-4931.0-4527.0-4590.0-4647.0-4488.0-4265.0-3905.0-4043.0-4560.0-4541.0-4837.0-5093.0-4289.0-4301.0-4097.0-4220.0-4122.0-3923.0-4090.0-3847.0-2895.0-2607.0-2708.0-2621.0-3213.0-3435.0-3379.0-3307.0-3005.0-3115.0-3023.0-3188.0-2333.0-2078.0-2183.0-2300.0-2171.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-15.6-16.1-15.5-15.8-17.4-18.6-16.1-15.9-14.1-15.2-21.5-21.2-20.2-18.3-19.8-23.2-23.4-25.5-28.0-23.4-23.8-22.6-23.2-23.3-22.5-24.3-21.6-16.1-14.8-16.3-15.4-18.9-21.7-21.7-20.3-19.1-20.5-20.1-20.6-15.4-13.4-14.5-15.0-14.2

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38423561356236063627365537743617344633853567358734433210308328512705253125062366217620221991197014651051925797614421515467385321447493483411595640536327514806
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.711.010.811.011.311.612.011.610.711.216.517.016.315.015.114.513.913.313.812.912.011.210.911.18.46.25.24.43.52.53.02.82.42.12.73.13.22.73.94.23.52.23.45.3

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1561621561611661561501772727773858181838581878083819289958991798277827078677364707167575853584735
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.50.50.50.60.80.30.30.40.40.40.40.40.40.50.40.50.40.50.50.50.50.50.40.50.40.50.40.50.40.50.40.40.50.40.40.40.30.40.30.2

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value85-133.0696966-129.0242359-101.0464649-75.0373633-43.0302426-36.0152021-40.0112112-59.0232420-89.0293439-118.0373544-129.031
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-03-312013-12-312012-12-312012-09-302011-12-312011-09-30
Value139.08.09.00.04.02917127.018-1.05.08.03.00.0122.08.03.05.06.0152.0121.07.00.01121-1.05.04.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1158-408.0138314211216-638.010701050517-276.01109906777-364.0756794742-399.0895883810-581.0908874112-530.0971883638-380.0766738430-593.0572684569-503.0710665706-376.0672-222.0523-251.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax23.1-8.031.335.829.0-13.725.126.511.9-6.829.925.920.8-9.120.523.821.2-11.426.628.224.0-17.427.228.13.5-16.529.928.119.3-11.624.625.213.9-19.019.124.018.8-16.524.423.724.1-13.024.1-8.820.1-9.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-370.0-67.0-168.0-82.0-319.0-245.0-167.0-74.0-5243.0-187.0-337.0-473.0-209.0-70.0-97.0-321.0-77.0-461.0-798.0-68.0-64.0-126.0-522.0-215.0-334.0-194.0-406.0-235.0-165.0-416.0-147.0-105.0-202.08.0-214.0-85.0-168.0-116.0-184.0-52.0-53.0-168.0-282.0970-11.0-142.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-7.4-1.3-3.8-2.1-7.6-5.3-3.9-1.9-120.6-4.6-9.1-13.5-5.6-1.8-2.6-9.6-2.2-13.2-23.7-2.2-1.9-3.8-15.6-6.9-10.4-6.0-12.5-7.5-5.0-12.7-4.7-3.6-6.50.3-7.1-3.0-5.6-3.8-6.3-1.9-1.8-5.8-10.138.4-0.4-5.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1040.0-451.0-1717.0-784.0-719.01340-1031.0-987.0-1502.06826-563.0-515.0-526.0294-482.0-543.0-681.0697-284.0-407.0-621.0245-276.0-142.0-494.071-1091.0121127-118.0-484.0242-228.0-364.0-109.0-164.0-215.0-145.0-116.0-420.0-343.0-128.0-199.0-666.0-109.0-156.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-20.7-8.9-38.9-19.8-17.228.8-24.2-24.9-34.5167.7-15.2-14.7-14.17.3-13.1-16.3-19.519.9-8.4-13.0-18.47.3-8.3-4.6-15.32.2-33.63.93.8-3.6-15.58.3-7.4-11.6-3.6-5.8-7.1-4.8-4.0-15.0-11.7-4.4-7.1-26.4-4.2-5.9

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-232.0-969.0-299.0677231325-58.0-81.0-6182.06410115-85.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-4.6-19.1-6.817.15.57.0-1.4-2.0-142.1157.53.1-2.4

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1051434-1.0-2.09.0-11.01391-9.0-105.032231134410.0172525-5.02622-70.01243.0878.02024594666205178-7.0-10.0358718-37.011056265265100
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1158-408.0138314211216-638.010701050517-276.01109906777-364.0756794742-399.0895883810-581.0908874112-530.0971883638-380.0766738430-593.0572684569-503.0710665706-376.0672-222.0523-251.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax23.1-8.031.335.829.0-13.725.126.511.9-6.829.925.920.8-9.120.523.821.2-11.426.628.224.0-17.427.228.13.5-16.529.928.119.3-11.624.625.213.9-19.019.124.018.8-16.524.423.724.1-13.024.1-8.820.1-9.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value82098337431657275439130333271615327653169029393501569436379472481375323419482294297431443303253388413259241329347256130282325203168236248
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 RevenueFromContractWithCustomerIncludingAssessedTax16.319.38.58.013.716.29.27.67.617.64.17.914.217.20.811.814.316.213.012.114.014.411.210.413.015.09.19.513.113.69.78.612.613.28.68.510.911.48.84.69.611.37.36.79.19.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value82799837932058076739630634472715927953669630397507578441384480490381331429495299304438456307259395424263247337354260135289331206171242252
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.519.68.68.113.816.59.37.77.917.94.38.014.417.40.811.914.516.513.112.214.214.711.410.613.315.49.29.713.314.09.98.812.813.68.88.711.111.68.94.89.911.57.46.89.39.6

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value7.0155.04.08.013282612116.03.05.06.01.04.06.09.05.05.08.09.06.08.010.0135.07.07.0134.06.07.0114.0
Percentage of ProfitLoss0.81.51.31.21.41.77.18.53.51.53.81.10.90.93.31.01.21.61.11.31.71.81.62.42.32.61.72.31.62.91.32.31.82.61.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.30.10.10.20.30.70.70.30.30.20.10.10.10.00.10.20.30.10.20.20.30.20.30.30.40.20.20.20.40.10.20.20.40.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value82098337431657275439130333271615327653169029393501569436379472481375323419482294297431443303253388413259
Percentage of ProfitLoss99.298.598.798.898.698.398.799.096.598.596.298.999.199.196.799.098.898.498.998.798.398.298.497.697.797.498.397.798.497.198.797.798.297.498.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.319.38.58.013.716.29.27.67.617.64.17.914.217.20.811.814.316.213.012.114.014.411.210.413.015.09.19.513.113.69.78.612.613.28.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value987871727572686760574747
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-370.0-67.0-168.0-82.0-319.0-245.0-167.0-74.0-5243.0-187.0-337.0-473.0-209.0-70.0-97.0-321.0-77.0-461.0-798.0-68.0-64.0-126.0-522.0-215.0-334.0-194.0-406.0-235.0-165.0-416.0-147.0-105.0-202.08.0-214.0-85.0-168.0-116.0-184.0-52.0-53.0-168.0-282.0970-11.0-142.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-7.4-1.3-3.8-2.1-7.6-5.3-3.9-1.9-120.6-4.6-9.1-13.5-5.6-1.8-2.6-9.6-2.2-13.2-23.7-2.2-1.9-3.8-15.6-6.9-10.4-6.0-12.5-7.5-5.0-12.7-4.7-3.6-6.50.3-7.1-3.0-5.6-3.8-6.3-1.9-1.8-5.8-10.138.4-0.4-5.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value826970788211813712388739287775885738262796063517673859183831039911396104887110098517563756778506380
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1040.0-451.0-1717.0-784.0-719.01340-1031.0-987.0-1502.06826-563.0-515.0-526.0294-482.0-543.0-681.0697-284.0-407.0-621.0245-276.0-142.0-494.071-1091.0121127-118.0-484.0242-228.0-364.0-109.0-164.0-215.0-145.0-116.0-420.0-343.0-128.0-199.0-666.0-109.0-156.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-20.7-8.9-38.9-19.8-17.228.8-24.2-24.9-34.5167.7-15.2-14.7-14.17.3-13.1-16.3-19.519.9-8.4-13.0-18.47.3-8.3-4.6-15.32.2-33.63.93.8-3.6-15.58.3-7.4-11.6-3.6-5.8-7.1-4.8-4.0-15.0-11.7-4.4-7.1-26.4-4.2-5.9

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5054.015045044.05033043034543.02534.03.03.02.0572515.03.03.03.03.0533.03.02.04.03222.03.03.02.03.02522.03.02.02523.02.04.02.02.05532.02.0
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value241237241236234232235233212210213211194189195194176175178178165161164166151151153154138137139139128127128127121121122123118117119112112109
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312011-09-30
Value3221121852001000.00.01752502503002002002001752152102007555047530020025025010015015015010050800.0126
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value31.624.50.730.30.2620.238-0.0050.260.3740.230.0040.2750.2560.2390.170.2620.2860.233-0.0080.2680.2950.2860.0070.2790.2790.292-0.0040.2960.2760.29500.3210.2890.299-0.0020.2680.2980.302-0.0030.3280.3110.2860.0570.30.6740.273
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value79.7164.6953.9447.3939.1534.1430.9729.2929.129.2129.3332.14
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value949698102798286767474787272707164666665677076747710010097105105117128133120113117143176144143154152145199206293351
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:ValuationAllowanceByDeferredTaxAsset

us-gaap:DeferredTaxAssetsValuationAllowance

mmc:DeferredTaxAssetsRelatedToDifferencesRelatedToNonUSOperations


Deferred
Period End2020-12-312019-12-31
Value12354
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0

mmc:DeferredTaxAssetsRelatedToNetOperatingLoss


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value757245111719827065
Percentage of DeferredTaxAssetsValuationAllowance61.0133.30.00.00.00.00.00.00.0

mmc:AverageSharePriceCommonStock

mmc:AverageSharePriceCommonStock


Average
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value134.04114.961.48114.64101.17107.12.4899.9795.7488.540.0884.6881.6482.831.9479.3575.4171.321.1866.9864.1755.86-0.3755.857.7556.371.2652.1549.6747.841.8242.0839.1536.210.533.53
Percentage of AverageSharePriceCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:BusinessCombinationConsiderationTransferredAssetsAcquired

mmc:BusinessCombinationConsiderationTransferredAssetsAcquired


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value13443503249362684131804214751693546276-1.0577839142.010569129830830217449046418731260.0220
Percentage of BusinessCombinationConsiderationTransferredAssetsAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

mmc:BusinessCombinationContingentandDeferredConsideration

mmc:BusinessCombinationContingentandDeferredConsideration


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value202.0117440.00.031352576257.0154.00.0907.03.00.02622598312507.0271132.023140.027
Percentage of BusinessCombinationContingentandDeferredConsideration100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

mmc:BusinessCombinationContingentandDeferredConsideration us-gaap:BusinessAcquisition

mmc:CurrentFiscalPeriodAcquisitions


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value202.0117440.031352576257.0154.00.0907.03.00.02622598312507.0271132.0
Percentage of BusinessCombinationContingentandDeferredConsideration100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections

mmc:DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections


Decreasein
Period End2020-09-30
Value5.0
Percentage of DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections100.0

mmc:DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Decreasein
Period End2020-09-30
Value0.0
Percentage of DecreaseinFairValueofContingentConsiderationDueto5DecreaseinProjections0.0

mmc:DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

mmc:DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations

country:US, us-gaap:PensionPlansDefinedBenefit


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
Value-13.0-13.0-15.0-15.0-15.0-14.0-14.0-15.0-17.0-17.0-17.0-14.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value1.00.00.00.00.00.01.00.00.01.00.01.01.01.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations-7.7-0.0-0.0-0.0-0.0-0.0-5.9-0.0-0.0-7.10.00.00.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value-51.0-48.0-35.0-39.0-41.0-45.0-46.0-45.0-38.0-41.0-39.0-32.0-31.0-30.0-29.0-33.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations392.3369.2233.3260.0273.3321.4328.6300.0223.5241.2229.4228.60.00.00.00.0

mmc:DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value1.00.00.00.00.00.01.00.00.02.01.02.02.02.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations-7.7-0.0-0.0-0.0-0.0-0.0-5.9-0.0-0.0-14.30.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value-64.0-61.0-50.0-54.0-56.0-59.0-60.0-60.0-55.0-58.0-56.0-46.0-45.0-44.0-13.0-17.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCostExcludingCurtailmentsSettlementsandPlanTerminations492.3469.2333.3360.0373.3421.4428.6400.0323.5341.2329.4328.60.00.00.00.0

mmc:EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities

mmc:EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities


Effectof
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-40.0-55.042-4.06.0-12.0-45.059-106.0-23.045-3.041-65.020-87.0-17.0-12.045112325174.0-41.090452.01412-34.0-11.0-23.036-60.0
Percentage of EffectofExchangeRateonCashandCashEquivalentsfromOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedinEarningsNet

mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedinEarningsNet


Fair
Period End2020-12-31
Value18
Percentage of FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedinEarningsNet100.0

mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityOtherAdjustments us-gaap:FairValueByLiabilityClass

mmc:FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityOtherAdjustments

mmc:ContingentConsideration


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2000000.04000000.0-4000000.0-2000000.03000000.0-3000000.01000000.0-3000000.02000000.0-1000000.01000000.0-1000000.02000000.01000000.00-2000000.00-4000000.0-2000000.00000
Percentage of FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.00.00.00.0

mmc:IncreaseDecreaseinOperatingLeaseLiabilities

mmc:IncreaseDecreaseinOperatingLeaseLiabilities


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
Value-90000000.0-82000000.0-97000000.0-90000000.0-78000000.0-86000000.0-87000000.0-85000000.0-82000000.0-73000000.00000
Percentage of IncreaseDecreaseinOperatingLeaseLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

mmc:IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections

mmc:IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections


Increase
Period End2020-09-30
Value-5.0
Percentage of IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections100.0

mmc:IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Increase
Period End2020-09-30
Value0.0
Percentage of IncreaseInFairValueOfContingentConsiderationDueTo5IncreaseInProjections-0.0

mmc:InterestIncomeFiduciaryAssets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

mmc:InterestIncomeFiduciaryAssets

us-gaap:OperatingSegments, mmc:ConsultingSegment


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value0.01.01.01.02.01.01.01.00.01.01.01.01.02.01.01.01.01.01.01.01.01.01.01.01.02.02.02.02.0
Percentage of InterestIncomeFiduciaryAssets0.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3.05.06.08.09.023253126231918151311119.08.06.08.06.06.05.06.05.05.06.06.06.06.06.07.06.08.08.010.0
Percentage of InterestIncomeFiduciaryAssets0.00.00.0800.0900.02300.01250.03100.02600.02300.00.01800.01500.01300.01100.0550.0900.0800.0600.0800.0600.0600.0500.0600.0500.0500.0600.0300.0300.00.0300.00.00.00.0400.00.0

mmc:InterestIncomeFiduciaryAssets us-gaap:StatementBusinessSegments

mmc:RiskandInsuranceServicesSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3.05.06.08.09.02325312623191815135.06.05.05.06.06.06.06.06.07.06.08.08.0
Percentage of InterestIncomeFiduciaryAssets0.00.00.0800.0900.02300.01250.03100.02600.02300.00.01800.01500.01300.0500.0600.0500.0500.0600.0300.0300.00.0300.00.00.00.0400.0

mmc:LeaseObligationsPercent us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty

mmc:LeaseObligationsPercent

srt:OfficeBuilding


Lease
Period End2021-06-302021-03-31
Value099.0
Percentage of LeaseObligationsPercent0.0100.0

mmc:LeasesRightOfUseAssetAmortization

mmc:LeasesRightOfUseAssetAmortization


Leases
Period 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
Value7979114768580798583680.00.0
Percentage of LeasesRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansNetofTax

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansNetofTax


Other
Period End2021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-5.0-35.00.00.00.0140.00.0-1.0400.01.0-1.0-11.04.00.00.0-8.00.02.01.00.0-4.00.00.0580.0
Percentage of OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansNetofTax100.0100.00.00.00.0100.00.00.0100.0100.00.0100.0100.0100.0100.00.00.0100.00.0100.0100.00.0100.00.00.0100.00.0

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansTax

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansTax


Other
Period End2021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-2.0-6.00.00.00.03.00.00.00.09.00.00.00.0-7.01.00.00.0-3.00.00.00.0-1.0-2.00.00.0170.0
Percentage of OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandOtherPostretirementBenefitPlansTax100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0100.00.00.0100.00.00.00.0100.0100.00.00.0100.00.0

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandPostretirementBenefitPlansBeforeTax

mmc:OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandPostretirementBenefitPlansBeforeTax


Other
Period End2021-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-7.0-41.00.00.00.0170.00.0-1.0490.01.0-1.0-18.05.00.00.0-11.00.02.01.0-1.0-6.00.00.0750.0
Percentage of OtherComprehensiveIncomeLossAdjustmentFromMergerofPensionPlansPensionandPostretirementBenefitPlansBeforeTax100.0100.00.00.00.0100.00.00.0100.0100.00.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.00.00.0100.00.0

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-37.0-180.0-113.0-5.0135-80.06438-72.0120-15.0156-120.076-215.0-47.0-15.01634011697101105-161.0169169119-91.0-17.0-24.0-106.0-23.01803.0-132.0
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-29.0-147.0-94.0-3.0109-65.05629-59.0100-13.0129-100.063-177.0-39.0-12.01343695818381-128.013513394-71.0-15.0-21.0-81.0-18.0139-26.0-72.0
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentNetofTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-8.0-33.0-19.0-2.026-15.08.09.0-13.020-2.027-20.013-38.0-8.0-3.0294.021161824-33.0343625-20.0-2.0-3.0-25.0-5.04129-60.0
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansForeignCurrencyTransactionandTranslationAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax


Other
Period End2021-03-312020-06-302019-09-302019-06-302018-09-30
Value-2000000.00-8000000.0-1000000.03000000.0
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentBeforeTax100.00.0100.0100.0100.0

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax

mmc:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax


Other
Period End2021-03-312020-06-302019-09-302019-06-302018-09-30
Value-2000000.00-6000000.0-1000000.03000000.0
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansRemeasurementAdjustmentNetofTax100.00.0100.0100.0100.0

mmc:PaymentsForPreviousAcquisitionContingentConsideration

mmc:PaymentsForPreviousAcquisitionContingentConsideration


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value3.010.0-11.023384.0-1.07.010.06.08.0152.0301.020528.01.01910.0141.01.05.06.0
Percentage of PaymentsForPreviousAcquisitionContingentConsideration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:PaymentsForPreviousAcquisitionContingentConsideration us-gaap:BusinessAcquisition

mmc:PriorFiscalPeriodsAcquisitions


Payments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value112365131310.035351.0401.04253121.03532188.06.014192.04.06.0309.03.0
Percentage of PaymentsForPreviousAcquisitionContingentConsideration110.0100.0171.1325.0185.7100.0583.3233.350.0133.3100.0210.0101.9150.0100.0184.2320.0128.6800.0600.0280.0316.70.00.00.00.00.00.0

mmc:PaymentsForPreviousAcquisitionDeferredConsideration

mmc:PaymentsForPreviousAcquisitionDeferredConsideration


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value57278.0332.0256.0140.0233.06.01340151.03.06.0111.02.01.08.0
Percentage of PaymentsForPreviousAcquisitionDeferredConsideration100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:PaymentsForPreviousAcquisitionDeferredConsideration us-gaap:BusinessAcquisition

mmc:PriorFiscalPeriodsAcquisitions


Payments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value27332.025140.0236.013408.010.011261.01414256.02.02.026151.03.06.0111.0
Percentage of PaymentsForPreviousAcquisitionDeferredConsideration100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0

mmc:PaymentsforAcquisitionsDeferredandContingentConsideration

mmc:PaymentsforAcquisitionsDeferredandContingentConsideration


Paymentsfor
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value32-3.05640295.02110.029112115709.03063342.03324397.02.08.032274.04.020
Percentage of PaymentsforAcquisitionsDeferredandContingentConsideration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense

mmc:PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense


Pensionand
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value85102116758085100979280417282961201231081066575726753291513411232593323020350
Percentage of PensionandOtherPostretirementBenefitContributionsInExcessofCurrentYearExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mmc:ProceedsFromPreviousDispositionContingentConsideration

mmc:ProceedsFromPreviousDispositionContingentConsideration


Proceeds
Period End2021-06-302021-03-31
Value665.0
Percentage of ProceedsFromPreviousDispositionContingentConsideration100.0100.0

mmc:StockIssuedDuringPeriodValueSharebasedCompensationandEmployeeStockPurchasePlanAndRelatedTaxDeficiency us-gaap:StatementEquityComponents

mmc:StockIssuedDuringPeriodValueSharebasedCompensationandEmployeeStockPurchasePlanAndRelatedTaxDeficiency

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value9.041-8.0-1.02.014-39.0-44.0-4.0-35.0-2.0-7.01.0-27.0-38.0-13.0-3.0-66.00.0-1.0-14.0-48.0-5.0-11.0-16.0-53.0-3.0-13.0-7.0-60.0-5.0-16.0-11.0-25.02.0
Percentage of StockIssuedDuringPeriodValueSharebasedCompensationandEmployeeStockPurchasePlanAndRelatedTaxDeficiency100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4111344212811924925039182203117123685426175352556169544561174696757194101688622696
Percentage of StockIssuedDuringPeriodValueSharebasedCompensationandEmployeeStockPurchasePlanAndRelatedTaxDeficiency455.6275.6-550.0-2100.01400.0850.0-638.5-568.2-975.0-520.0-1000.0-442.91700.0-455.6-178.9-415.4-866.7-265.20.0-2500.0-400.0-352.1-1080.0-409.1-381.2-328.3-2300.0-515.4-814.3-323.3-2020.0-425.0-781.8-904.04800.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value00-1000000.000
Percentage of AdjustmentsToAdditionalPaidInCapitalOther0.00.0100.00.00.0

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic


Business
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.611.930.621.131.490.610.911.420.310.551.051.360.060.770.981.110.830.730.910.920.770.610.790.90.50.550.790.820.560.460.720.740.490.440.610.640.450.240.510.570.360.23-0.060.5
Percentage of BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted

us-gaap:BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted


Business
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.61.910.621.121.480.60.91.40.320.541.041.340.060.760.961.090.830.730.90.920.750.610.780.890.490.540.780.80.550.460.710.730.480.440.60.630.440.230.50.560.350.23-0.060.5
Percentage of BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value82098337731657475442130646371715827553269030392502568430379472482400326422482297298431446307253391417266242330348257131282321209171239
Percentage of BusinessAcquisitionsProFormaNetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaRevenue

us-gaap:BusinessAcquisitionsProFormaRevenue


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value501750834442396841894657426539674346408038243514374840023684334934963515364331373376334335263120324132153295314333063277323229353099318730672848303030582933280629302929285425682655
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:BusinessCombinationConsiderationTransferred1


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value1355.04922452.00.0574817737946915636432241.0509782142.01035982712993219939904442247155
Percentage of BusinessCombinationConsiderationTransferred1100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

mmc:CurrentFiscalPeriodAcquisitions


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1355.04922450.0574817738246915636432241.0509782142.010357827129932199399044422
Percentage of BusinessCombinationConsiderationTransferred1100.0100.0100.0100.00.0100.0100.0100.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.096.7100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5.044245.0464027135.0487.0244.05.055-2.0761070.00.04.01483910.02.0195.02.038-6.035240.03.0
Percentage of BusinessCombinationConsiderationTransferredLiabilitiesIncurred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


Business
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-1.0-8.016-20.0-10.0360.09.0-18.06.0-12.07.0-5.06.0-17.07.0-20.04.0-29.0-9.01.0-4.0152.0-2.0148.03.0-6.08.06.09.01.0-12.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

mmc:CurrentFiscalPeriodAcquisitions


Business
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-09-302015-06-302014-09-302014-06-302013-09-30
Value2.0-8.07.04.0-69.0161.03.0-5.0-1.0-1.03.0-1.05.010.01.02.03.00.05.05.00.0
Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

mmc:CurrentFiscalPeriodAcquisitions


Business
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-09-302015-06-302014-09-302014-06-302013-09-30
Value355248153524864.08036113.0534034288.07.04815463813
Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1422381072.012928915371138169
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value38341317382912311917
Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1000000.00001000000.0001000000.000000
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.00.00.00.0100.00.00.0100.00.00.00.00.00.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-22000000.0-23000000.0-18000000.0-18000000.0-18000000.0-18000000.0-11000000.0-11000000.0-11000000.0-11000000.0-14000000.0-14000000.0-14000000.0-13000000.0-9000000.0-9000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.00.0-1800.00.00.00.0-1100.00.00.0-1400.00.00.00.00.00.0

us-gaap:ForeignPlan, 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
Value0-1000000.00000001000000.0-1000000.00000-1000000.00000
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.00.00.00.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignPlan, 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-29000000.0-29000000.0-23000000.0-22000000.0-22000000.0-22000000.0-16000000.0-14000000.0-15000000.0-15000000.0-22000000.0-22000000.0-23000000.0-24000000.0-33000000.0-33000000.0-33000000.0-31000000.0-22000000.0-24000000.0-24000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.00.0-2200.00.00.00.0-1400.00.00.0-2200.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0-1000000.01000000.00001000000.0002000000.0-1000000.00000001000000.000
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.0100.00.00.00.0100.00.00.0200.00.00.00.00.00.00.00.00.00.00.0

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-51000000.0-52000000.0-41000000.0-40000000.0-40000000.0-40000000.0-27000000.0-25000000.0-26000000.0-26000000.0-36000000.0-36000000.0-37000000.0-37000000.0-42000000.0-42000000.0-43000000.0-40000000.0-41000000.0-43000000.0-42000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.00.00.0-4000.00.00.00.0-2500.00.00.0-3600.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:ForeignPlan, 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
Value0.0-1.0-1.00.00.0-1.0-1.00.00.0-1.00.0-1.00.0-1.0-1.00.0-1.00.00.00.00.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0100.0100.00.00.0100.0100.00.00.0100.00.0100.00.0100.0100.00.0100.00.00.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

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
Value0.0-1.0-1.00.00.0-1.0-1.00.00.0-1.01.0-1.0-1.0-1.0-1.01.00.01.01.01.01.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0100.0100.00.00.0100.0100.00.00.0100.00.0100.00.0100.0100.00.0-0.00.00.00.00.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value02.4202.692800.02720000.03650000.03210000.036400
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate0.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value01.9202.544300.02570000.03480000.03070000.034-0.00010
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate0.079.30.094.50.094.50.00.00.095.30.00.00.095.60.00.00.093.40.00.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value04.7205.256900.05310000.05740000.05830000.0664-0.00010
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets0.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0100.00.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value01.8501.742400.01760000.01740000.01730000.017700
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease0.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-31
Value2829
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value81828686878686868586898990898989
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, 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
Value130126129126120124133128132127123124128132146143140135131137147
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets160.5153.7150.0146.5137.9144.2154.7148.8155.3147.7138.2139.3142.2148.3164.0160.70.00.00.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

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
Value211208215212207210219214217213212213218221235232230224225232242
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets260.5253.7250.0246.5237.9244.2254.7248.8255.3247.7238.2239.3242.2248.3264.0260.70.00.00.00.00.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.01.00.00.00.01.00.00.00.00.01.00.01.00.0
Percentage of DefinedBenefitPlanInterestCost0.0100.00.00.00.0100.00.00.00.00.0100.00.0100.00.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value46465353545360616060595859596666
Percentage of DefinedBenefitPlanInterestCost0.00.00.05300.00.00.00.06100.00.00.00.00.05900.00.06600.00.0

us-gaap:ForeignPlan, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


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
Value1.01.00.00.01.01.00.00.01.01.00.00.01.00.01.00.01.01.00.01.0
Percentage of DefinedBenefitPlanInterestCost0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignPlan, 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
Value403946595053675961595556585960595856646672
Percentage of DefinedBenefitPlanInterestCost0.00.00.05900.00.00.00.05900.00.00.00.00.05800.00.06000.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


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
Value1.01.01.00.01.01.01.00.01.01.00.01.01.01.01.01.01.02.00.01.0
Percentage of DefinedBenefitPlanInterestCost0.00.0100.00.00.00.0100.00.00.00.00.0100.00.0100.00.00.00.00.00.00.0

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
Value868599112104106127120121119114114117118126125124122130132138
Percentage of DefinedBenefitPlanInterestCost0.00.00.011200.00.00.00.012000.00.00.00.00.011700.00.012600.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:ForeignPlan, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.00.00.00.00.00.00.00.01.00.00.00.01.00.01.02.01.01.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.00.00.00.00.00.00.00.0100.00.00.00.0100.00.0100.0100.0100.0100.0

us-gaap:ForeignPlan, 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-49.0-47.0-35.0-39.0-41.0-44.0-45.0-46.0-41.04.0-38.0-41.0-39.018-31.0-31.0-30.0-28.0-29.0-37.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-4900.00.00.00.00.00.00.00.00.00.0-3800.00.00.00.0-3100.00.0-3000.0-1400.0-2900.0-3700.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-03-31
Value1.00.00.00.00.00.00.00.01.00.00.01.02.01.02.03.02.02.0-125.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.00.00.00.00.00.00.00.0100.00.00.00.0200.00.0200.0150.0200.0200.00.0

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-62.0-61.0-62.0-50.0-54.0-56.0-59.0-59.0-60.0-56.0-12.0-55.0-58.0-56.04.0-45.0-45.0-44.0-10.0-13.0-21.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-6200.00.00.00.00.00.00.00.00.00.00.0-5500.00.00.00.0-4500.00.0-4400.0-500.0-1300.0-2100.0

us-gaap:DefinedBenefitPlanOtherCosts

us-gaap:DefinedBenefitPlanOtherCosts


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-71.0-71.0-70.0-60.0-63.0-64.0-62.0-69.0-70.0-64.0-21.0-63.0-65.0-66.0-16.0-62.0-63.0-60.0
Percentage of DefinedBenefitPlanOtherCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanOtherCosts us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.00.00.00.00.00.00.00.00.00.00.00.02.01.02.0
Percentage of DefinedBenefitPlanOtherCosts-1.4-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-3.2-1.6-3.3

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-72.0-71.0-71.0-60.0-63.0-64.0-62.0-69.0-70.0-64.0-21.0-63.0-65.0-66.0-16.0-64.0-64.0-62.0
Percentage of DefinedBenefitPlanOtherCosts101.4100.0101.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0103.2101.6103.3

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-2000000.000-3000000.000-4000000.0-42000000.0000-52000000.0-1000000.00-1000000.01000000.00-1000000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.00.00.0100.00.00.0100.0100.00.00.00.0100.0100.00.0100.0100.00.0100.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanType

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-2000000.000-3000000.000-4000000.0-42000000.0000-52000000.0-1000000.00-1000000.01000000.00-1000000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.00.00.0100.00.00.0100.0100.00.00.00.0100.0100.00.0100.0100.00.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:ForeignPlan, 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
Value10.010.09.010.09.08.03.010.010.08.09.08.07.010.020191918181719
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:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

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
Value10.010.09.010.09.08.03.010.010.08.09.08.07.010.020191918454346
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0250.0252.9242.1

us-gaap:DefinedContributionPlanCostRecognized us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedContributionPlanCostRecognized

country:GB


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value343930333128242219
Percentage of DefinedContributionPlanCostRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3939353736373336353533
Percentage of DefinedContributionPlanCostRecognized114.7100.00.0123.3109.1119.40.0128.6145.8159.1173.7

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1049710894919788868574757779807878768077777678817779777776747573717369766867666767666769687480
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.04722.04710.04596498812314190.02092103810.0193191350-1.01761783220.01621653011.01511532741.01361382520.0
Percentage of DividendsCommonStockCash0.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DividendsShareBasedCompensationCash us-gaap:StatementEquityComponents

us-gaap:DividendsShareBasedCompensationCash

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3.03.02.03.02.04.08.06.02.02.02.02.02.01.02.02.01.01.02.01.03.01.01.01.01.01.00.01.01.01.01.02.00.03.02.0
Percentage of DividendsShareBasedCompensationCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period 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
Value20-43.020312253-132.070-70.04647-94.0-3.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate


Effective
Period End2021-06-30
Value8.3
Percentage of EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent


Effective
Period End2021-03-312020-03-312019-03-312018-03-31
Value-1.1-0.026-0.032-0.024
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiRealizedGainLoss

us-gaap:EquitySecuritiesFvNiRealizedGainLoss


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-8.0-16.0-2.0-1.00.04.03.03.01125
Percentage of EquitySecuritiesFvNiRealizedGainLoss100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value33-16.0-7.01.0446.09.011138.06.05.06.05.08.0-16.04.0-13.0135.03.0211110.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:FairValueByLiabilityClass

mmc:ContingentConsideration


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value161.018-11.01.06.09.0118.06.05.05.08.0-16.0-13.0135.03.0211110.0148.05.04.0166.09.01.0-12.0-34.01.01.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings0.00.0-112.5157.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

mmc:ContingentConsideration


Fair
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value970.066303.0-7.02911208.0206.0152.00.0348.01.00.08.03124418.0443.012555.08.0130.08.01.08.010.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

mmc:ContingentConsideration


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.0112365135.01310.03515351.0401.04253121.03532188.06.014192.04.06.0309.03.02.03.010.06.01.013
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:FinitelivedIntangibleAssetsAcquired1


Finitelived
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-31
Value-2.03.018691-77.0-49.017347117315911972622.01.042
Percentage of FinitelivedIntangibleAssetsAcquired1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finitelived
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302017-09-30
Value-2.02.016986-86.0-55.016356714368
Percentage of FinitelivedIntangibleAssetsAcquired1100.066.790.994.5111.7112.294.394.489.970.1

us-gaap:OtherIntangibleAssets


Finitelived
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-31
Value0.01.0175.09.06.0994.010.0160.029622.00.02.0
Percentage of FinitelivedIntangibleAssetsAcquired1-0.033.39.15.5-11.7-12.25.75.65.810.10.029.923.7100.00.04.8

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GainLossOnSaleOfOtherAssets


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value46-3.0-15.0-4.0-8.03.0-20.0-15.0-21.00.0-5.0520.01.0-1.00.0-3.0-6.0-3.00.0-1.0-2.016-2.00.0-1.042-2.0-1.0-1.00.04.0-3.0-2.0-10.0-1.00.0-12.0-34.00.0-6.053
Percentage of GainLossOnSaleOfOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:GoodwillOtherIncreaseDecrease

us-gaap:GoodwillOtherIncreaseDecrease


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2159154-241.0-61.0401-327.026058-43.0-180.036118-90.0367-116.0-45.0-37.0-64.0-18.06.00.0-226.043
Percentage of GoodwillOtherIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:OperatingSegments, mmc:ConsultingSegment


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.00.00.04.06.00.05.05.0-4.04.05.03.05.03.05.04.05.05.05.04.08.05.05.03.02.00.00.00.0
Percentage of IncomeLossFromEquityMethodInvestments100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OperatingSegments, mmc:RiskandInsuranceServicesSegment


Income
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1420-6.014-1.09.010.04.02.03.04.07.0-1.03.02.07.02.01.04.06.01.02.02.00.02.0-1.04.06.00.0-2.02.07.01.01.0
Percentage of IncomeLossFromEquityMethodInvestments0.02000.00.00.0-25.0150.00.080.040.0-75.0100.0140.0-33.360.066.7140.050.020.080.0120.025.025.040.00.066.7-50.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:InvestmentType

us-gaap:PrivateEquityFunds


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1710.09.02.0-6.0-1.03.03.05.02.0
Percentage of IncomeLossFromEquityMethodInvestments0.00.0900.00.00.0-25.050.00.0100.040.0

us-gaap:IncomeTaxReconciliationChangeInEnactedTaxRate

us-gaap:IncomeTaxReconciliationChangeInEnactedTaxRate


Income
Period End2021-06-10
Value100
Percentage of IncomeTaxReconciliationChangeInEnactedTaxRate100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-43.0-73.0385-15.011-140.0246-155.0-50.07926-33.0-105.013576-41.0-8.060-5.0-60.036-21.053-128.0-46.0-54.04720-26.053
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-12.0121-90.0-54.011391-78.0114-90.096-27.0-31.0-43.061-40.032-11.056-86.03061-26.053-99.068-37.0-16.0-2.033284.0-14.01439-44.0393217-11.0-31.063-20.05515-1.0-37.0
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value538-1180.0638417330-1178.0435389216-886.0380302291-905.0341301309-888.0351296286-931.0342340268-927.0295352284-764.0271336112-727.0248308218-702.0295234205-627.0256211202-682.0
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value159152-67.0473443-34.0-33.037-7.0-15.0-2.0-2.0-11.0-4.0-25.043-11.0-17.03.03440-4.06.0-28.0133.0-19.035-1.037-20.05456-48.0180-151.01428.02.073
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-06-302015-03-31
Value12654-17.071-83.0-57.0-58.026321.0-15.08.0
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6226349418-38.0-23.0-185.0-6.042-2.021-27.0173237455-46.0-94.07.061-71.039-42.025-82.0-110.0-36.046-85.020950161-37.0-27.01334226-61.0291450-28.0-161.02915
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value276275152-466.07631346-353.0128309-132.0-178.031357206-70.0172146-8.0-118.0105175-66.0-156.02731.0-124.0-210.024215016-54.0163120-4.0-45.092101-21.0-192.0-102.0172-32.0-177.035273
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.02.01.02.02.05.04.02.0283.02.03.03.03.02.02.02.01.00.02.02.04.03.03.03.05.06.05.05.05.05.04.04.06.06.06.06.07.09.05.07.07.06.03.04.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2860280726502495242925552478243725372282216320832135222420981906193519451918181718721854190018781826173018961904187618391833182417661803180217601776179617671753172817211690158616141575
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value118124150123120125127131137116
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-2.00.02.0-3.0173951950.00.00.00.0
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.00.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9594108999792959410082
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OperatingLeaseImpairmentLoss


Operating
Period End2020-12-312019-12-312019-09-30
Value252.07.0
Percentage of OperatingLeaseImpairmentLoss100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value105991141099410310410110087
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax


Other
Period End2021-06-302021-03-312020-12-31
Value-17.053-184.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1000000.00-1000000.000-1000000.00-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.00001000000.01000000.001000000.0-2000000.01000000.000-8000000.0-3000000.0-2000000.0-3000000.0-5000000.0-6000000.0-5000000.0-6000000.0-7000000.0-8000000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax100.00.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value00-1000000.00000-1000000.0-1000000.00-1000000.0-1000000.0-1000000.00001000000.0001000000.0-2000000.01000000.000-6000000.0-2000000.0-1000000.0-2000000.0-3000000.0-4000000.0-3000000.0-4000000.0-6000000.0-2000000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax0.00.0100.00.00.00.00.0100.0100.00.0100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

mmc:AccumulatedDefinedBenefitPlansAdjustmentForeignCurrencyTranslationAdjustmentsAttributableToParent


Other
Period End2021-06-302020-06-30
Value-44.0-5.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax100.0100.0

mmc:AccumulatedDefinedBenefitPlansAdjustmentRemeasurementAttributableToParent


Other
Period End2021-06-30
Value15
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax-34.1

mmc:AccumulatedDefinedBenefitPlansAdjustmentSettlementAttributableToParent


Other
Period End2021-06-30
Value2.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax-4.5

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302020-06-30
Value24241
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax-54.5-4820.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-127.04.0403234-821.0-152.0-419.04435-215.0-255.0-387.0123226-17.093-119.0-244.0117-295.0-953.0-325.068-121.0540171-103.0-117.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

mmc:AccumulatedDefinedBenefitPlansAdjustmentForeignCurrencyTranslationAdjustmentsAttributableToParent


Other
Period End2021-06-302020-06-30
Value-32.0-3.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.0-1.3

mmc:AccumulatedDefinedBenefitPlansAdjustmentRemeasurementAttributableToParent


Other
Period End2021-06-30
Value14
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.0

mmc:AccumulatedDefinedBenefitPlansAdjustmentSettlementAttributableToParent


Other
Period End2021-06-30
Value2.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-16.0-36.0-751.0-94.0-3.0109-669.05629-59.0-221.0-13.0129-100.0379-173.0-40.0-6.0-508.03698806831-126.0128-642.094-69.0-199.0538-85.0-18.0139
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.028.3-18775.0-23.3-1.3-13.3440.1-13.465.9-168.6102.85.1-33.3-81.30.00.00.0-2.70.0-211.80.086.0-57.1-12.7-107.7-43.467.4-28.9-101.5164.599.6-49.717.5-118.8

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302020-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value8.0234-215.0-255.0-387.0123433-52.0263226-900.0-17.0-235.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.0

us-gaap:AccumulatedTranslationAdjustment


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
Value24-91.0755497237-930.0517-475.015946.0-242.0-516.022365126289235-404.0-54.0-333.013-187.0-276.0243-423.0-311.0-419.0137780.0256-84.0-256.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.071.718875.0123.3101.3113.3-340.1113.434.1268.6-2.894.9133.3181.30.00.00.0104.00.0317.60.014.0157.1113.1207.7143.432.6128.9201.5-64.50.0149.781.6218.8

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

mmc:AccumulatedDefinedBenefitPlansAdjustmentForeignCurrencyTranslationAdjustmentsAttributableToParent


Other
Period End2021-06-302020-06-30
Value-12.0-2.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0

mmc:AccumulatedDefinedBenefitPlansAdjustmentRemeasurementAttributableToParent


Other
Period End2021-06-30
Value1.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax-8.3

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value48-85.0-161.0427275-766.0-290.0-393.07653-213.0-214.0-337.0144595-49.0309263-851.031-171.0151-91.0-183.0163-190.0-1329.0-249.094-128.0955217-36.0-8.0-474.099-71.0175
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302020-06-30
Value2434
Percentage of OtherComprehensiveIncomeLossBeforeTax50.012.4

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value24-91.0759500241-941.0514-475.013969.0-237.0-529.022865127290235-369.0-52.0-334.013-181.0-278.0246-426.0-313.0-421.0136715.0254-85.0-260.035171-191.0162
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.04.0-11.0-3.00.0-2.02.03.05.0-13.05.00.01.01.00.0352.0-1.00.06.0-2.03.0-3.0-2.0-2.0-1.0-7.05.0-2.0-1.0-4.05.04.0-14.00.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-24.0-6.092073-34.0-175.0804-82.0-63.043222-23.0-192.084-548.01685.0-33.0502-82.0-163.0-138.0-90.0-94.083-236.01016-172.042199-948.037-50.0-252.050972-120.0-14.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-4.071763-28.0-138.0641-71.0-48.037165-19.0-156.071-463.01407.0-24.0412-65.0-129.0-110.0-89.0-76.076-180.0641-131.036165-590.034-29.0-184.033258-86.0-5.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-2.020310.0-6.0-37.0163-11.0-15.06.057-4.0-36.013-85.028-2.0-9.090-17.0-34.0-28.0-1.0-18.07.0-56.0375-41.06.034-358.03.0-21.0-68.017714-34.0-9.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value5243403940341825297635363694434240424243424968767712544748757573726160
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-52000000.0-41000000.0-40000000.0-40000000.0-40000000.0-25000000.0-25000000.0-26000000.0-26000000.0-35000000.0-36000000.0-37000000.0-37000000.0-42000000.0-43000000.0-42000000.0-40000000.0-41000000.0-41000000.0-43000000.0-41000000.0-51000000.0-67000000.0-76000000.0-77000000.0-85000000.0-57000000.0-49000000.0-51000000.0-80000000.0-81000000.0-78000000.0-78000000.0-68000000.0-68000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-40000000.0-32000000.0-31000000.0-32000000.0-29000000.0-21000000.0-19000000.0-20000000.0-20000000.0-26000000.0-29000000.0-28000000.0-30000000.0-41000000.0-33000000.0-33000000.0-30000000.0-31000000.0-29000000.0-31000000.0-29000000.0-29000000.0-44000000.0-50000000.0-52000000.0-59000000.0-39000000.0-34000000.0-36000000.0-55000000.0-55000000.0-50000000.0-49000000.0-73000000.0-16000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-12000000.0-9000000.0-9000000.0-8000000.0-11000000.0-4000000.0-6000000.0-6000000.0-6000000.0-9000000.0-7000000.0-9000000.0-7000000.0-1000000.0-10000000.0-9000000.0-10000000.0-10000000.0-12000000.0-12000000.0-12000000.0-22000000.0-23000000.0-26000000.0-25000000.0-26000000.0-18000000.0-15000000.0-15000000.0-25000000.0-26000000.0-28000000.0-29000000.05000000.0-52000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value403431312928151922592927298433333032293130274550521.0373334525147456714
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value129.09.08.0116.03.06.07.0176.09.07.010.010.09.010.010.0131212222326251117141423242627-6.046
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4.02.0-199.0-7.010.026-166.01113-4.0-54.09.023-8.078-30.0137.0-47.01933287.016-4.053-377.039-7.0-41.0363-5.02064-172.0-11.02110.0-374.03516-12.0
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302020-06-30
Value4.06.0
Percentage of OtherComprehensiveIncomeLossTax100.060.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value929918119593387510261194106411328519288809088689018387967498137467787498447767707508147927777527937047457167947077327287507437356917706991042635
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromInvestments

us-gaap:PaymentsForProceedsFromInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value6.0-4.0-5.01.0-46.0-57.010.09.0-87.0-115.0-5.0-2.012-9.0-8.033-1.0-11.0-6.00.02.02.02.0-27.03.087-123.0119-2.00.0-3.0-8.010.0-92.06.0-34.03.05.02.0-31.0-33.0-1.0
Percentage of PaymentsForProceedsFromInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.02.02.08.08.0-9.0254.0452.07.0-1.01.01.0-2.0-2.0-2.00.0-1.01.0-3.0-1.0-6.0-1.02.01.05.01.00.0-1.08.00.0-1.0-1.0-2.0-2.00.01.02.02.02.0-1.04.01.01.0-5.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRepurchaseOfEquity

us-gaap:PaymentsForRepurchaseOfEquity


Payments
Period End2021-03-312012-09-302012-06-302011-09-302011-06-302010-12-31
Value11918010012623585
Percentage of PaymentsForRepurchaseOfEquity100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1928152126384.02641413439338.01418142510.07.01210.04.0125.07.09.0145.0157.01118292217202912172330
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:BusinessAcquisition

mmc:JardineLloydThompsonGroupplc


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value18265742666112283
Percentage of PaymentsForRestructuring94.792.9380.0200.0253.8160.53050.0319.2

us-gaap:PaymentsForRestructuring us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve

mmc:JardineLloydThompsonGroupplc, mmc:InformationTechnology


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6.07.0156.0171736
Percentage of PaymentsForRestructuring31.625.0100.028.665.444.7900.0

mmc:JardineLloydThompsonGroupplc, mmc:LegalConsultingandOtherOutsideServices


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value8.07.0331117162437
Percentage of PaymentsForRestructuring42.125.0220.052.465.442.1600.0142.3

mmc:JardineLloydThompsonGroupplc, mmc:RealEstateRelatedCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5.02.010.0110.04.09.05.0
Percentage of PaymentsForRestructuring26.37.166.752.40.010.5225.019.2

mmc:JardineLloydThompsonGroupplc, us-gaap:EmployeeSeverance


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-1.010.0-1.01432245332
Percentage of PaymentsForRestructuring-5.335.7-6.766.7123.163.21325.0123.1

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value8.0203.06.01431-4.02236372530184.07.0129.0216.04.07.05.02.01.02.02.01.02.02.03.03.04.09.0173.07.08.0203.08.0
Percentage of PaymentsForRestructuring42.171.420.028.653.881.6-100.084.687.890.273.576.954.550.050.066.764.384.060.057.158.350.050.08.340.028.611.114.340.020.042.936.450.058.613.641.240.069.025.047.1

us-gaap:OtherRestructuring


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value118.01215127.08.04.05.04.09.09.0154.07.06.05.04.04.03.05.05.02.0113.05.08.0123.0124.0
Percentage of PaymentsForRestructuring57.928.680.071.446.218.4200.015.412.29.826.523.145.550.050.033.335.716.040.042.941.750.050.091.760.071.488.985.760.080.057.1

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5.0931.0163.01120.02.01.0865.00.01.0610.01.00.0481.00.01.0371.00.01.0478.01.06.0495.06.03.0655.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries

us-gaap:PaymentsToAcquireAdditionalInterestInSubsidiaries


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-30
Value0.00.00.03.05.0250.00.0
Percentage of PaymentsToAcquireAdditionalInterestInSubsidiaries0.00.00.0100.0100.0100.00.00.0

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireBusinessesGross


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1153.03752012.00.0571714235739313129282201.0419775112.0775522122162014932633312031880.012820295347158.09020538193-9.0
Percentage of PaymentsToAcquireBusinessesGross100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

mmc:CurrentFiscalPeriodAcquisitions


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1153.03752010.0571714235739313129282201.0419775112.07755621221620149326333120
Percentage of PaymentsToAcquireBusinessesGross100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.7100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value109-3.03622005.00.0536014034839212024262171.0411725112.0755211712441613833643193417901.0139246960103219.0104244501.0197
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value138.08.04.04.018-2.03.0114.0154.05.06.08.01.0121.09.01.05.06.0132.0141.07.00.0121.0-10.00.08.0130.00.00.015
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.00.00.0100.0

us-gaap:ProceedsFromDivestitureOfBusinesses us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ProceedsFromDivestitureOfBusinesses

mmc:CertainBusinessesPrimarilyintheU.S.U.K.andCanada


Proceeds
Period End2020-12-312020-09-30
Value5.00.0
Percentage of ProceedsFromDivestitureOfBusinesses100.00.0

us-gaap:ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates

us-gaap:ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.00.0867.04.0601650.01051.01.03.00.00.00.00.00.00.00.00.02.00.00.03.0-2.00.02.00.0-1.00.00.01.08.010759.0110
Percentage of ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.00.00.00.00.00.00.00.0100.00.00.0100.0100.00.0100.00.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromIssuanceOfDebt


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.00.07370.00.00.0-3.06462-1.00.00.05920.00.00.09870.00.00.0347-8.05994945000.07985950.01.04960.0500.00.00.02480.0
Percentage of ProceedsFromIssuanceOfDebt0.00.0100.00.00.00.0100.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.0100.00.00.00.0100.00.0

us-gaap:ProceedsFromIssuanceOrSaleOfEquity

us-gaap:ProceedsFromIssuanceOrSaleOfEquity


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value403534322244262431772124163232402173342339924532431047354449298487113597561877391123891310.08.010.0
Percentage of ProceedsFromIssuanceOrSaleOfEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.0-1000.020000.03000.0
Percentage of ProceedsFromLinesOfCredit0.0100.0100.00.0100.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.02.01.00.06.02.01.01.00.02.00.01.04.00.03.01.0-1.04.00.01.00.01.00.01.01.01.00.01.03.00.01.01.02.03.00.01.0-1.03.00.01.03.0-5.07.01.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.00.0100.0100.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.00.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302020-06-30
Value-51000000.0-39000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-06-302020-06-30
Value-52000000.0-40000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax102.0102.6

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-40000000.0-34000000.0-31000000.0-31000000.0-29000000.0-28000000.0-15000000.0-19000000.0-22000000.0-56000000.0-32000000.0-27000000.0-29000000.0-30000000.0-29000000.0-30000000.0-21000000.0-45000000.0-50000000.0-52000000.0-1000000.0-37000000.0-33000000.0-34000000.0-52000000.0-51000000.0-47000000.0-45000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-36000000.0-40000000.0-34000000.0-31000000.0-31000000.0-29000000.0-28000000.0-15000000.0-19000000.0-22000000.0-56000000.0-32000000.0-27000000.0-29000000.0-84000000.0-33000000.0-33000000.0-30000000.0-96000000.0-29000000.0-31000000.0-30000000.0-21000000.0-45000000.0-50000000.0-52000000.0-1000000.0-37000000.0-33000000.0-34000000.0-52000000.0-51000000.0-47000000.0-45000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-06-302020-06-30
Value-37000000.0-32000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.0103.2

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302020-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-36000000.0-31000000.0-56000000.0-32000000.0-27000000.0-29000000.0-84000000.0-33000000.0-33000000.0-30000000.0-96000000.0-29000000.0-31000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302020-06-30
Value-15000000.0-8000000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Reclassification
Period End2021-06-302020-06-30
Value-15000000.0-8000000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0

us-gaap:RepaymentsOfDebt us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:RepaymentsOfDebt

mmc:TermLoanFacility, mmc:A500MillionOneYearTermLoanFacility


Repayments
Period End2020-12-312020-09-302020-03-31
Value5005001000
Percentage of RepaymentsOfDebt100.0100.0100.0

us-gaap:RepaymentsOfDebt us-gaap:LongtermDebtType

mmc:FloatingRateNotes


Repayments
Period End2020-12-31
Value300
Percentage of RepaymentsOfDebt60.0

us-gaap:SeniorNotes


Repayments
Period End2021-04-152020-12-312020-03-312019-09-302018-10-31
Value500700500300250
Percentage of RepaymentsOfDebt0.0140.050.00.00.0

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

us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Repayments
Period End2021-04-15
Value500
Percentage of RepaymentsOfDebt0.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value12114623119.056126.0386631586.08.08.0159.0351.05.03.0203.03.02.02.04.04.02.05.0
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition

mmc:JardineLloydThompsonGroupplc


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value19237044578014358
Percentage of RestructuringCharges158.3209.1152.2191.3518.2888.9255.4483.3

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve

mmc:JardineLloydThompsonGroupplc, mmc:AcquisitionRelated


Restructuring
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1923445780779820
Percentage of RestructuringCharges158.3209.1191.3518.2888.9641.71633.352.6

mmc:JardineLloydThompsonGroupplc, mmc:InformationTechnology


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4.07.0178.0162136
Percentage of RestructuringCharges33.363.637.034.8145.5233.364.3

mmc:JardineLloydThompsonGroupplc, mmc:LegalConsultingandOtherOutsideServices


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.08.021162020289.0
Percentage of RestructuringCharges58.372.745.769.6181.8222.250.075.0

mmc:JardineLloydThompsonGroupplc, mmc:RealEstateRelatedCosts


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value6.06.0271115161721
Percentage of RestructuringCharges50.054.558.747.8136.4177.830.4175.0

mmc:JardineLloydThompsonGroupplc, us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2.02.05.09.06.0236219
Percentage of RestructuringCharges16.718.210.939.154.5255.6110.7158.3

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

mmc:JardineLloydThompsonGroupplc, mmc:AcquisitionRelated, mmc:ConsultingSegment


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value6.06.020147.010.08.05.05.0
Percentage of RestructuringCharges50.054.543.560.963.6111.114.341.783.3

mmc:JardineLloydThompsonGroupplc, mmc:AcquisitionRelated, mmc:RiskandInsuranceServicesSegment


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11164625396195587519
Percentage of RestructuringCharges91.7145.5100.0108.7354.5677.8169.6483.31250.050.0

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

us-gaap:CorporateNonSegment, mmc:JardineLloydThompsonGroupplc, mmc:AcquisitionRelated


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.01.04.05.0119.04014181.0
Percentage of RestructuringCharges16.79.18.721.7100.0100.071.4116.7300.02.6

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

mmc:GlobalInformationTechnologyHRFunctionsAndFutureRent


Restructuring
Period End2021-06-30
Value12
Percentage of RestructuringCharges100.0

mmc:SeveranceandFutureRent


Restructuring
Period End2021-03-31
Value11
Percentage of RestructuringCharges100.0

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4.05.0249.01.05.0296.01.0375927465.07.05.0145.0351.02.02.0141.02.00.00.02.02.00.01.0
Percentage of RestructuringCharges33.345.552.239.19.155.651.850.016.797.489.487.179.383.387.562.593.355.6100.0100.040.066.770.033.366.70.00.050.050.00.020.0

us-gaap:OtherRestructuring


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value8.06.0221410.04.0276.05.01.07.04.0121.01.03.01.04.00.00.03.01.06.02.01.02.02.02.02.02.04.0
Percentage of RestructuringCharges66.754.547.860.990.944.448.250.083.32.610.612.920.716.712.537.56.744.40.00.060.033.330.066.733.3100.0100.050.050.0100.080.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve, us-gaap:Subsegments

mmc:SeveranceandConsultingCosts, mmc:MarshInsuranceGroup


Restructuring
Period End2020-09-302020-06-302020-03-31
Value0.00.02.0
Percentage of RestructuringCharges0.00.022.2

mmc:SeveranceandConsultingCosts, mmc:MercerConsultingGroup


Restructuring
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value112.04.010.02210.0
Percentage of RestructuringCharges47.818.244.483.3366.726.3

us-gaap:RestructuringReserveSettledWithoutCash2 us-gaap:BusinessAcquisition

us-gaap:RestructuringReserveSettledWithoutCash2

mmc:JardineLloydThompsonGroupplc


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4.04.0167.0111316
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserveSettledWithoutCash2 us-gaap:BusinessAcquisition, us-gaap:RestructuringCostAndReserve

mmc:JardineLloydThompsonGroupplc, mmc:InformationTechnology


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.02.03.00.00.0
Percentage of RestructuringReserveSettledWithoutCash20.028.627.30.00.0

mmc:JardineLloydThompsonGroupplc, mmc:RealEstateRelatedCosts


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4.04.0165.09.01212
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0100.071.481.892.375.0

us-gaap:RestructuringReserveTranslationAdjustment

us-gaap:RestructuringReserveTranslationAdjustment


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-03-312014-12-312014-09-302013-12-31
Value-8000000.0-1000000.04000000.0-5000000.00-8000000.0-4000000.02000000.0-3000000.04000000.0-1000000.002000000.05000000.0-1000000.0-3000000.0-3000000.00-1000000.0-1000000.03000000.0-1000000.01000000.0-1000000.0-4000000.0
Percentage of RestructuringReserveTranslationAdjustment100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserveTranslationAdjustment us-gaap:RestructuringCostAndReserve

us-gaap:OtherRestructuring


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-03-312014-12-312014-09-302013-12-31
Value-8000000.0-1000000.03000000.0-4000000.00-5000000.0-3000000.02000000.01000000.01000000.0-1000000.01000000.01000000.03000000.00-2000000.0-2000000.00-1000000.0-1000000.04000000.0-1000000.000-5000000.0
Percentage of RestructuringReserveTranslationAdjustment100.0100.075.080.00.062.575.0100.0-33.325.0100.00.050.060.0-0.066.766.70.0100.0100.0133.3100.00.0-0.0125.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value22922993350792845670.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value600000.02000000.0700000.0600000.0500000.02300000.0400000.0400000.0600000.03200000.0300000.0500000.0200000.02300000.01200000.0900000.0400000.03300000.0800000.0400000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2000000.01000000.001000000.01000000.01000000.01000000.04000000.02000000.01000000.0
Percentage of ShortTermLeaseCost100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssued1

us-gaap:StockIssued1


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value162122.04.0122011.02.04.01581.01.03.01250.01.02.0852.01.03.0674.01.03.0643.03.010.0922.010.08.01306.0
Percentage of StockIssued1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


Sublease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.08.04.05.05.05.06.04.04.04.0
Percentage of SubleaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312011-09-30
Value3221120.02853001000.00.017525025030020020020017521521020075550475300200250250100150150150100-410.080-722.0126
Percentage of TreasuryStockValueAcquiredCostMethod100.0</