NDAQ


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

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

us-gaap:Revenues

us-gaap:CostOfRevenue
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:OperatingExpenses
us-gaap:ConsolidationItems
us-gaap:CostsAndExpenses

us-gaap:GeneralAndAdministrativeExpense

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

us-gaap:InterestExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ReceivablesNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:DebtCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:TreasuryStockValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:ShortTermDebtType

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensation

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

ndaq:ContractWithCustomerLiabilityRevenueTranslationAdjustment
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService
ndaq:GrossProfitPercentage

ndaq:PaymentsAccretionsAndOtherofLongtermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ShortTermDebtType

ndaq:PaymentsRelatedToEmployeeSharesWithheldForTaxes

ndaq:ProceedsFromDisbursementsOfCustomerFunds

ndaq:RegulatoryOperatingExpense
us-gaap:ProductOrService
ndaq:ServicesProvidedOverNumberOfMarketPlaces
us-gaap:ProductOrService, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:AwardType, us-gaap:PlanName
ndaq:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesEarnedMaximum
us-gaap:AwardType, us-gaap:PlanName
ndaq:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod
us-gaap:AwardType, us-gaap:PlanName, us-gaap:SubsequentEventType

ndaq:TotalVolumeInClearedPower

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AmortizationOfIntangibleAssets
us-gaap:ConsolidationItems

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:ConsolidationItems

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:Dividends
us-gaap:SubsequentEventType

us-gaap:CommunicationsAndInformationTechnology

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:ProductOrService

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DefinedContributionPlanCostRecognized

us-gaap:DepreciationAndAmortization
us-gaap:ConsolidationItems
us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense
us-gaap:Dividends
us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:GainLossOnSaleOfBusiness

us-gaap:GainsLossesOnExtinguishmentOfDebt
us-gaap:ConsolidationItems
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:GoodwillAcquiredDuringPeriod
us-gaap:StatementBusinessSegments

us-gaap:GoodwillForeignCurrencyTranslationGainLoss
us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherAccountsPayable

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestPaidNet

us-gaap:InvestmentIncomeInterest

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCommitmentFeePercentage

us-gaap:MarketingAndAdvertisingExpense

us-gaap:NumberOfOperatingSegments

us-gaap:OccupancyNet

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTaxPortionAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:ConsolidationItems
us-gaap:OtherGeneralExpense

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNonoperatingIncome

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PensionAndOtherPostretirementBenefitExpense

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromShortTermDebt
us-gaap:ShortTermDebtType

us-gaap:ProfessionalFees

us-gaap:RepaymentsOfShortTermDebt
us-gaap:ShortTermDebtType

us-gaap:RestructuringCharges
us-gaap:ConsolidationItems
us-gaap:RestructuringCostAndReserve

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOther

us-gaap:SubleaseIncome

us-gaap:TreasuryStockSharesAcquired
us-gaap:StatementClassOfStock

us-gaap:TreasuryStockValueAcquiredParValueMethod
us-gaap:StatementEquityComponents

us-gaap:VariableLeaseCost
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
ndaq:ApproximateCombinedMarketCapitalization
dei:LegalEntity
ndaq:ContractValueOfResaleAndRepurchaseAgreements

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedAfterYearFive
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFive
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree
us-gaap:ProductOrService

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo
us-gaap:ProductOrService
us-gaap:DebtInstrument
ndaq:CreditFacilityAvailableLiquidity

ndaq:DefaultFundContributions
us-gaap:FinancialInstrument

ndaq:DefaultFundContributionsAndMarginDeposits
us-gaap:FinancialInstrument

ndaq:DefaultFundsAndMarginDepositsAssets

ndaq:DefaultFundsAndMarginDepositsLiabilities

ndaq:DerivativeContractsMarketValue
us-gaap:DerivativeInstrumentRisk

ndaq:Financialguaranteesobtainedtoprovidefurtherliquidityanddefaultprotectionrelatedtoclearingbusinesses

ndaq:LeaseLiability

ndaq:MarginDeposits
us-gaap:FinancialInstrument

ndaq:SectionThirtyOneFeesPayable
dei:LegalEntity
ndaq:TotalNumberOfDerivativeContractsCleared

us-gaap:AccountsAndNotesReceivableNet

us-gaap:AdditionalPaidInCapital

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AssetsFairValueDisclosure

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance
us-gaap:AwardType

us-gaap:ContractWithCustomerLiability
us-gaap:ProductOrService

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents
us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DerivativeNumberOfInstrumentsHeld
us-gaap:DerivativeInstrumentRisk

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType, us-gaap:PlanName

us-gaap:EquityMethodInvestments

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsGrossExcludingGoodwill
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCredit
us-gaap:ShortTermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LongTermDebtFairValue

us-gaap:MarketableSecuritiesCurrent
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:PreferredStockSharesIssued

us-gaap:PreferredStockSharesOutstanding

us-gaap:RestrictedCashCurrent
us-gaap:Range, us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringAndRelatedCostExpectedCost1
us-gaap:StatementBusinessSegments
us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:TradingSecurities
us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:TradingSecuritiesDebt
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:TreasuryStockShares

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:SharesOutstanding ▁▄▁▄█▄▁▁164165164165166165164164NA167NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesIssued ▂▂▁▂▂▂▁▁▂▂▂▂▁▁▁▁▁▂▂███▇▇▇▇▇▇▇▇▇▇▇▇170171169171171170169169172172171171169169169167166171171217216216213213213213213213213213213213212212NANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▁▁▁▁▁▂▂▂▂▁▁▁▁▁▂▂▂▂▂▂▂▁▁▁▂▂▄▄▃▇█164165163165165165163164166167166166165165165164164168168168168170167167165165165167171177177176197202NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 166NA167167167NA167167168NA170168170169168168171172172173172173172170169NA170173177180180181204209NANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 164NA164165165NA164165166NA166165166165165164166168168168169169167166165NA166169172177176176200205NANANA
us-gaap:EarningsPerShareBasic ▇▇▆▆█▁▆▆▆█▆▆▆▅▄▅▅▅▂▅▄▄▅▄▃▄▄▄▄▅▄▄▄▄▃▃▃1.231.23000000000000040.911.051.49-0.25999999999999980.990.981.061.481.030.891.020.790.420.80.830.790.050.730.60.610.680.530.260.51999999999999980.530.550.490.620.520.590.510.460.290.30.34
us-gaap:EarningsPerShareDiluted ▇▇▆▆█▁▆▆▆█▆▆▆▅▄▅▅▅▂▅▄▄▅▄▃▄▄▄▄▄▄▄▄▄▃▃▃1.221.210.91.041.48-0.260000000000000230.970.971.051.45000000000000021.010.870.990.770.420.780.80.770.050.710.590.590.660.520.250.510.520.530.480.610.510.570.50.460.280.280.33
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▅▅▅▄▆▄▄▆▄▄▄▄▃▃▃▂▂▂▂▂▃▂▂▁▁▁▂▂▃▂▂▁▃▁▂▃135310651096106110391136964102711511019965994971929897905871807858818865898805814744752743823801946838817751876771810889
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ndaq:GlobalInformation█▆▇▆▆▆▅▅▅▃▃▂▁▁▁▁211194198194193186179175174156150144138137134133NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ndaq:InformationServices211NANANA193NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ndaq:MarketServices█▃▄▃▃▅▂▃▅▂▂▃▂▁▁▂933644690665638741586649735610581620606557532572NANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues █▅▅▅▄▆▄▄▆▄▄▄▄▃▃▃▂▂▂▂▂▃▂▂▁▁▁▂▂▃▂▂▁▃▁▂▃1353106510961061103911369641027115110249691000971929897905871807858818865898805814744752743823801946838817751876771810889
us-gaap:CostOfRevenue █▄▄▄▃▅▂▃▅▃▂▃▃▂▂▃▂▁▂▂▂▃▁▂▂▂▂▃▃▅▄▃▃▅▃▄▅652419464438405492364412485388362398388344338371342289351321342369299363326333334399390508422402379486411461522
 us-gaap:CostOfRevenue us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,ndaq:MarketServices█▃▄▃▂▄▂▃▄▂▂▂▂▁▁▂652419464438405492364412485388362398388344338371NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService ndaq:BrokerageClearanceAndExchangeFees173NANANA74NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService ndaq:TransactionRebates479NANANA331NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit █▇▇▆▇▇▆▆▇▇▆▆▆▆▅▅▅▄▄▄▄▅▄▃▂▂▂▂▂▃▂▂▁▂▁▁▁701646632623634644600615666636607602583585559534529518507497523529506451418419409424411438416415372390360349367
us-gaap:OperatingExpenses ▇▆▆▅▅▆▅▅▆▆▄▅▄▅▆▄▃▃█▃▄▅▃▃▄▂▂▂▂▂▂▂▁▁▂▁▁426386406367359403354346393393343358335352385315298301480290332345304292328245239249240243258234207211248218208
 us-gaap:CostsAndExpenses us-gaap:ConsolidationItems us-gaap:CorporateNonSegment█▃█▃▂▆▃▁▇█▅▇905189453774432982936885NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense █▄▅▅▂▆▃▃▃▂▂▄▂▂▂▁▁▂▆▂▄▃▂▂▃▁▂▂▁▂▁▂▁▁▇▂▁61304040164728252218153019191714111946183323171925141515141814151112552011
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us-gaap:ComprehensiveIncomeNetOfTax ▃▇▃▅▄▃▅▃▃▅▅▆▅▄▃▅▄▅▁▂▃▄▅▅▃▄▅▂▅▁▄▆█▂▃▆▅-20350-171531322717031-21209238242161109-2022696210-192-6031992021689123234-57217-174112294479-11329329235
us-gaap:NetIncomeLoss ▇▇▆▆█▁▆▆▆█▆▆▆▅▄▅▅▅▂▅▄▅▅▄▃▄▄▄▄▅▄▅▄▄▄▄▄203203150174247-441631621772461711471691317013213813391231011031138842868993851109210410196616069
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us-gaap:Liabilities ▅▄▄▅▅▆▅▅▆▆▅▅▅▅▅▄▃▃▃▃▃▃▃▃▁▁▁▁▁▄▅█▂▂9400828576538581900910251925395991006598999337908491389054938280206224638866976574690967386430609039853923378439573860816190571302852775217NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▅▅▄▅▅▆▆▆▆▆▆▅▅▆▆▅▃▃▄▄▄▄▄▃▁▁▁▁▁▄▅█▂▂14798139241298014132145031570014855151411579015786150721466014490148081509913717117701210412242126921311612978124861195391889132892089279021131571421718065103559910NANANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
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us-gaap:CashAndCashEquivalentsAtCarryingValue █▂▁▂▃▄▂▂▂▂▄▂▂▁▂▂▁▂▂▁▂▂▁▂▄▃▃▃▃▄▄▃▂▃▄▁▂1015332304333472545324322405377530356386257344331290324328286314384300379591497438491525543578439336526535311419
us-gaap:ReceivablesNetCurrent █▄▄▄▅▄▃▄▆▄▂▄▆▃▄▂▁▂▃▃▄▅▃▃▂▂▂▃▂▃▃▂▂▃568422399415447384356405486423320392467349399333278323344370395434372362317333327341327347344327308361NANANA
us-gaap:OtherAssetsCurrent ▂▄▂▂▅█▆▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▂▁▁▁▂▁163219144165256390304212205187175184163160165164157152145162166150141154124112116126129126127108166125NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:PropertyPlantAndEquipmentNet ▇█▇█▇▇▇▇██▇█▇▆▆▆▅▅▅▅▅▄▄▃▃▃▂▂▂▁▁▁▁▁375384361390370376371370384400379384376342332326305295281288280266249227215211203198195168165166160154NANANA
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 us-gaap:Goodwill us-gaap:StatementBusinessSegments ndaq:GlobalInformation█▇▆▇▇█▇▇██▂▂▁▂▂▂▁▂▁▂▃▄▄▃▃▃23652283223822902289233322832275234523621915188018191863187618791832184318021895198020152021197119561964NANANANANANANANANANANA
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us-gaap:FiniteLivedIntangibleAssetsNet ▆▆▆▇▇▆▇▇██▃▄▄▅▅▂▁▁▁▃▃▃▄▄▁▂▂▂990101710261069109410451070109611451173796820826885911682592615619720768795834837632653661672NANANANANANANANANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:StockholdersEquity ▄▅▄▅▅▄▅▅▆▆▆▅▄▆▆▆▅▆▅▇██▇▆▃▃▃▂▃▂▃▃▃▁5396563953275551549454495602554257255887573555765352575457175697554657165544611762056239605558625200520851354961515249875150502650674683NANANA
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us-gaap:RepaymentsOfLongTermDebt █▁▁█▆▁▁▁▂▁▁█▁6710070051500011525136700NANA555NANA25NANA146NANA111112NA111NANA3570NA1700113NA
us-gaap:PaymentsOfDividends ████▇▆▆▇▄▄▄▄▁78777877737272736363646353NANA41NANA25NANA22NANA21NANANANANANANANANANANANA
us-gaap:PaymentsOfDividends ████▇▆▆▇▄▄▄▄▁78777877737272736363646353NANA41NANA25NANA22NANA21NANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▅▁▅▂▁▁▃█▄▂▂▁▆12201505000542419928190156NANA29NANA30NANANANANA10NANANA50NANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:RepaymentsOfLongTermDebt █▁▁█▆▁▁▁▂▁▁█▁6710070051500011525136700NANA555NANA25NANA146NANA111112NA111NANA3570NA1700113NA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument ndaq:A0875SeniorUnsecuredNotesDueFebruary1320300.00875NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument ndaq:OnePointSevenFiveSeniorUnsecuredNotesDue20290.0175NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument ndaq:OnePointSevenFiveSeniorUnsecuredNotesDueMay1920230.0175NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument ndaq:ThreePointEightFiveSeniorSecuredNotesDueJune3020260.0385NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030,us-gaap:SeniorNotes0.00875NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType srt:Maximum,ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050,us-gaap:SeniorNotes,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

Common Stock Par Or Stated Value Per Share

Shares Outstanding

us-gaap:SharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value164165164165166165164164167
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0

Shares Issued

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value170171169171171170169169172172171171169170169169167167166171171170217216216214213213213213213213213213213213213213212212211
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value164165163165165165163164166167166166165166165165164164164168168168168168170169167167165165165167171173177177176175197202211
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value166167167167167167168170168170169168168171172172173172173172170169170173177180180181204209
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value164164165165164165166166165166165165164166168168168169169167166165166169172177176176200205
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.231.23000000000000040.911.051.49-0.25999999999999980.990.981.061.481.030.891.020.790.420.80.830.790.050.730.60.610.680.530.260.51999999999999980.530.550.490.620.520.590.510.460.290.30.34
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.221.210.91.041.48-0.260000000000000230.970.971.051.45000000000000021.010.870.990.770.420.780.80.770.050.710.590.590.660.520.250.510.520.530.480.610.510.570.50.460.280.280.33
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value135310651096106110391136964102711511019965994971929897905871807858818865898805814744752743823801946838817751876771810889
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0000000650514650
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.64.35.04.85.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.00.00.00.64.35.04.85.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.0100.0100.0100.0100.0100.0

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-03-31
Value010
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value128128124123131133131131132131126122
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.512.011.311.612.611.713.612.811.512.913.112.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.512.011.311.612.611.713.612.811.512.913.112.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:CorporateServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ndaq:GlobalInformation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value211194198194193186179175174156150144138135137134133
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.618.218.118.318.616.418.617.015.115.315.514.514.20.014.714.914.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.618.218.118.318.616.418.617.015.115.315.514.514.20.014.714.914.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:GlobalInformation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ndaq:InformationServices



Period End2020-03-312019-03-31
Value211193
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.618.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.618.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:InformationServices100.0100.0

us-gaap:OperatingSegments, ndaq:MarketServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value933644690665638741586649735610581620606594557532572
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.060.563.062.761.465.260.863.263.959.960.262.462.40.060.059.363.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.060.563.062.761.465.260.863.263.959.960.262.462.40.060.059.363.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:MarketServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ndaq:MarketTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value819984797776686660716258
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.09.37.77.47.46.77.16.45.27.06.45.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.09.37.77.47.46.77.16.45.27.06.45.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:MarketTechnology100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:TechnologyService



Period End2020-03-312019-03-31
Value8177
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.07.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.07.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:TechnologyService100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1353106510961061103911369641027115110249691000971929897905871807858818865898805814744752743823801946838817751876771810889
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.5100.4100.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Cost Of Revenue

us-gaap:CostOfRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value652419464438405492364412485388362398388344338371342289351321342369299363326333334399390508422402379486411461522
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.239.342.341.339.043.337.840.142.138.137.540.040.037.037.741.039.335.840.939.239.541.137.144.643.844.345.048.548.753.750.449.250.555.553.356.958.7

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ndaq:MarketServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value652419464438405492364412485388362398388374344338371
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.239.342.341.339.043.337.840.142.138.137.540.040.00.037.037.741.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:MarketServices69.965.167.265.963.566.462.163.566.063.662.364.264.063.061.863.564.9

Cost Of Goods And Services Sold

us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

ndaq:BrokerageClearanceAndExchangeFees



Period End2020-03-312019-03-31
Value17374
Percentage of CostOfGoodsAndServicesSold100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.87.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ndaq:BrokerageClearanceAndExchangeFees0.00.0

ndaq:TransactionRebates



Period End2020-03-312019-03-31
Value479331
Percentage of CostOfGoodsAndServicesSold276.9447.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.431.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ndaq:TransactionRebates0.00.0

Gross Profit

us-gaap:GrossProfit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value701646632623634644600615666636607602583585559534529518507497523529506451418419409424411438416415372390360349367
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.860.757.758.761.056.762.259.957.962.462.960.660.063.062.359.060.764.259.160.860.558.962.955.456.255.755.051.551.346.349.650.849.544.546.743.141.3

Operating Expenses

us-gaap:OperatingExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value426386406367359403354346393393343358335352385315298301480290332345304292328245239249240243258234207211248218208
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.536.237.034.634.635.536.733.734.138.635.536.034.537.942.934.834.237.355.935.538.438.437.835.944.132.632.230.330.025.730.828.627.624.132.226.923.4

Costs And Expenses

us-gaap:ConsolidationItems

us-gaap:CostsAndExpenses

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value905189453774432982936885
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.74.88.14.23.66.54.52.87.19.17.08.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.0483.3164.0182.4147.8170.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value61304040164728252218153019191714111946183323171925141515141814151112552011
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.52.83.63.81.54.12.92.41.91.81.63.02.02.01.91.51.32.45.42.23.82.62.12.33.41.92.01.81.71.91.71.81.51.47.12.51.2

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value2752602262562752412462692732432642442482331742192312172720719118420215990174170175171195158181165179112131159
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.324.420.624.126.521.225.526.223.723.827.424.525.525.119.424.226.526.93.125.322.120.525.119.512.123.122.921.321.320.618.922.222.020.414.516.217.9

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-90-51-89-45-37-74-43-23-40-51-26-43-29-62-39-85-35
Percentage of OperatingIncomeLoss-32.7-19.6-39.4-17.6-13.5-30.7-17.5-8.6-14.7-21.0-9.8-17.6-11.70.0-16.7-48.9-16.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.7-4.8-8.1-4.2-3.6-6.5-4.5-2.2-3.5-5.0-2.7-4.3-3.00.0-4.2-9.5-3.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.0-383.3-80.0-100.0-56.5-86.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value454445444641423752514545434142413436363732
Percentage of OperatingIncomeLoss16.416.919.917.216.717.017.113.819.021.017.018.417.30.018.023.615.50.015.617.1118.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.34.14.14.14.43.64.43.64.55.04.74.54.40.04.54.63.80.04.14.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:CorporateServices35.234.436.335.835.130.832.128.239.438.935.736.90.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, ndaq:GlobalInformation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value13411812612212411811711211310011110510293979697
Percentage of OperatingIncomeLoss48.745.455.847.745.149.047.641.641.441.242.043.041.10.041.655.244.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.911.111.511.511.910.412.110.99.89.811.510.610.50.010.410.710.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:GlobalInformation63.560.863.662.964.263.465.464.064.964.174.072.973.968.970.871.672.9

us-gaap:OperatingSegments, ndaq:MarketServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value178124129127135142121134147122118121119118114105113
Percentage of OperatingIncomeLoss64.747.757.149.649.158.949.249.853.850.244.749.648.00.048.960.351.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.211.611.812.013.012.512.613.012.812.012.212.212.30.012.311.712.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:MarketServices19.119.318.719.121.219.220.620.620.020.020.319.519.619.920.519.719.8

us-gaap:OperatingSegments, ndaq:MarketTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value825158714991211616132319171023121110
Percentage of OperatingIncomeLoss2.99.66.63.12.55.83.73.30.48.66.16.65.20.08.29.84.60.05.25.137.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.62.31.40.80.71.20.90.90.12.11.71.61.30.02.01.91.10.01.41.41.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ndaq:MarketTechnology9.925.317.910.19.118.413.213.61.729.625.827.60.00.00.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value26272931373838373836343637373228282728293030322624242424243031302526252625
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.52.62.93.63.33.93.63.33.53.53.63.84.03.63.13.23.33.33.53.53.34.03.23.23.23.22.93.03.23.73.73.33.03.23.22.8

Interest Expense Debt

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

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value2732522152393133282092882392132362132171991461952061921417916215617113559153134125137170131152143
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.223.719.622.530.128.921.728.020.820.924.521.422.321.416.321.523.723.81.621.918.717.421.216.67.920.318.015.217.118.015.618.619.0

Income Loss From Continuing Operations Before Income Taxes Domestic

Income Loss From Continuing Operations Before Income Taxes Foreign

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value70496565663724612662-3365664868766368605566153584717684533536140494351292546
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.65.96.16.432.74.812.35.4-3.26.76.64.97.38.57.07.87.40.66.87.15.97.25.82.39.06.14.06.66.44.86.05.75.83.83.15.2

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value4116601072226967227286733263518111161372237141417
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.01.55.510.12.12.310.07.02.32.76.93.32.73.92.11.21.58.15.02.74.51.91.82.1

Profit Loss

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value-20350-171531322717031-21209238242161109-2022696210-192-6031992021689123234-57217-174112294479-11329329235
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.532.9-1.614.412.72.417.63.0-1.820.524.724.316.611.7-2.225.011.026.0-22.4-7.33.611.025.120.61.216.431.5-6.927.1-18.413.436.063.8-12.93.840.626.4

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value203203150174247-441631621772461711471691317013213813391231011031138842868993851109210410196616069
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.019.113.716.423.8-3.916.915.815.424.117.714.817.414.17.814.615.816.51.015.011.711.514.010.85.611.412.011.310.611.611.012.713.411.07.97.47.8

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-03-31
Value203247
Percentage of NetIncomeLoss100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.023.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.0

Net Income Loss Available To Common Stockholders Basic

Net Income Loss Available To Common Stockholders Diluted

Net Income Loss Attributable To Noncontrolling Interest

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value1479813924129801413214503157001485515141157901578615072146601449014150148081509913717118611177012104122421208712692131161297812577124861195391889132892089279021140911315714217180651620710355991010722
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value940082857653858190091025192539599100659899933790849138872090549382802062526224638866976293657469096738639364306090398539233784395738609105816190571302811478527752175763
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets63.559.559.060.762.165.362.363.463.762.761.962.063.161.661.162.158.552.752.952.854.752.151.852.751.950.851.550.943.443.042.444.342.864.662.063.772.170.851.052.653.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value1479813924129801413214503157001485515141157901578615072146601449014150148081509913717118611177012104122421208712692131161297812577124861195391889132892089279021140911315714217180651620710355991010722
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value53965639532755515494544956025542572558875735557653525430575457175697560955465716554457936117620562396184605558625200520851354961515249764987515050264718506746834932
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.540.541.039.337.934.737.736.636.337.338.138.036.938.438.937.941.547.347.147.245.347.948.247.348.149.248.549.056.657.057.655.657.135.337.936.227.829.148.947.346.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value527042903499436347366370545757275638552954464921494745604346459647223284316034463688340035573718351931633072261016081492132914101406657356776429101758510288028883424
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.630.827.030.932.740.636.737.835.735.036.133.634.132.229.330.434.427.726.828.530.128.128.028.327.125.124.621.817.516.314.915.815.646.643.145.256.352.527.829.131.9

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-31
Value10153323043334725453243224053775303563864032573443313012903243284272863143844253003795914974384915255065435784393153365265355943114193741325
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.92.42.32.43.33.52.22.12.62.43.52.42.72.81.72.32.42.52.52.72.73.52.32.43.03.42.43.26.45.44.95.55.83.64.14.12.41.93.25.30.05.50.00.00.00.0

Receivables Net Current

us-gaap:ReceivablesNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value568422399415447384356405486423320392467429349399333316278323344389370395434393372362317333327341327308347344327298308361301
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.03.12.93.12.42.42.73.12.72.12.73.23.02.42.62.42.72.42.72.83.22.93.03.33.13.03.03.53.63.73.83.62.22.62.41.81.83.03.62.8

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value16321914416525639030421220518717518416316716016516415815715214515116216615012614115412411211612612911012612710893166125112
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.61.11.21.82.52.01.41.31.21.21.31.11.21.11.11.21.31.31.31.21.21.31.31.21.01.11.31.31.21.31.41.40.81.00.90.60.61.61.31.0

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value375384361390370376371370384400379384376362342332326323305295281292288280266268249227215211203198195193168165166164160154164
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.82.82.82.62.42.52.42.42.52.52.62.62.62.32.22.42.72.62.42.32.42.32.12.02.12.01.92.32.32.32.22.21.41.31.20.91.01.51.61.5

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-05-022016-03-312016-02-252016-02-242016-02-012015-12-312015-09-302015-06-302015-03-312015-01-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value63266366623263826380636363696355654965866154623760706027620662361485663918654539554215469535011155385802606861736186619160485309533552865103521050615046534553395127504145264800
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.745.748.045.244.040.542.942.041.541.740.842.541.942.641.941.30.041.30.00.00.045.546.145.243.70.045.845.746.347.649.249.650.657.858.459.357.257.835.938.437.629.631.648.745.744.8

us-gaap:StatementBusinessSegments

ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value450460439449451455503504489490491683677674467
Percentage of Goodwill7.17.27.07.07.17.27.97.97.57.48.011.011.211.28.7
Percentage of Assets3.03.33.43.23.12.93.43.33.13.13.34.74.74.83.9
Percentage of Assets ndaq:CorporateServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ndaq:GlobalInformation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value236522832238229022892333228322752345236219151880181918061863187618791823183218431802179418951980201520192021197119561964
Percentage of Goodwill37.435.935.935.935.936.735.835.835.835.931.130.130.030.030.030.133.233.833.833.733.732.432.732.632.632.632.632.636.836.8
Percentage of Assets16.016.417.216.215.814.915.415.014.915.012.712.812.612.812.612.413.715.415.615.214.714.814.915.115.516.116.216.521.321.5
Percentage of Assets ndaq:GlobalInformation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.074.20.00.00.078.10.00.00.079.078.077.880.180.0

ndaq:MarketServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value325133423292337233683430343534253527354635603504341233903485349930472941296029842923308132223367342634333439335929414790475545934735460246094679
Percentage of Goodwill51.452.552.852.852.853.953.953.953.953.857.856.256.256.256.256.153.854.554.654.654.655.655.555.555.555.555.555.555.489.890.090.090.990.991.391.3
Percentage of Assets22.024.025.423.923.221.823.122.622.322.523.623.923.524.023.523.222.224.825.124.723.925.525.425.726.427.327.528.132.052.553.351.552.532.735.028.9
Percentage of Assets ndaq:MarketServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.042.60.00.00.041.40.00.00.044.143.646.259.267.50.00.00.037.90.032.6

ndaq:MarketTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value260281263271272145148151188188188170162157748749621519523535522549556586596598594585277161159152159153150156
Percentage of Goodwill4.14.44.24.24.32.32.32.42.92.93.12.72.72.612.112.011.09.69.69.89.89.99.69.79.79.79.69.75.23.03.03.03.13.03.03.0
Percentage of Assets1.82.02.01.91.90.91.01.01.21.21.21.21.11.15.15.04.54.44.44.44.34.54.44.54.64.84.84.93.01.81.81.71.81.11.11.0
Percentage of Assets ndaq:MarketTechnology0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.047.50.00.00.048.80.00.00.054.054.954.144.548.80.00.00.044.10.037.6

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value22002249223923042329230023282351243224682091210220822094274027712085195919812009199520772213231323622386240923831619165016451625168016481657176717731719168015131631
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.916.217.216.316.114.615.715.515.415.613.914.314.414.818.518.415.216.516.816.616.317.217.417.618.219.019.319.917.618.118.418.218.611.712.612.49.810.616.215.315.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value9901017102610691094104510701096114511737968208268438859116825735926156196337207687958158348376326536616721648
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.77.37.97.67.56.77.27.27.37.45.35.65.76.06.06.05.04.85.05.15.15.25.75.96.16.56.77.06.97.27.47.511.7

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ndaq:ForeignCurrencyTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value-108-104-124-108-109-85-81-84-64-65-64-80-97-102-85-83-74-95-92-86-99-68-37-8234-11-15-1-21-21
Percentage of FiniteLivedIntangibleAssetsNet-10.9-10.2-12.1-10.1-10.0-8.1-7.6-7.7-5.6-5.5-8.0-9.8-11.7-12.1-9.6-9.1-10.9-16.6-15.5-14.0-16.0-10.7-5.1-1.00.30.40.5-1.3-0.20.8-0.2-3.1-1.3
Percentage of Assets-0.7-0.7-1.0-0.8-0.8-0.5-0.5-0.6-0.4-0.4-0.4-0.5-0.7-0.7-0.6-0.5-0.5-0.8-0.8-0.7-0.8-0.6-0.3-0.10.00.00.0-0.1-0.00.1-0.0-0.2-0.1
Percentage of Assets ndaq:ForeignCurrencyTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1023106410911115113910761102112911551182828888909930952973740651666680695680733750766783797813614633640649658
Percentage of FiniteLivedIntangibleAssetsNet103.3104.6106.3104.3104.1103.0103.0103.0100.9100.8104.0108.3110.0110.3107.6106.8108.5113.6112.5110.6112.3107.4101.897.796.496.195.697.197.296.996.896.639.9
Percentage of Assets6.97.68.47.97.96.97.47.57.37.55.56.16.36.66.46.45.45.55.75.65.75.65.85.75.96.26.46.86.76.97.27.34.7
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DevelopedTechnologyRights



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value614445474939373941433111131416181416171921192223252730321516
Percentage of FiniteLivedIntangibleAssetsNet6.24.34.44.44.53.73.53.63.63.73.91.31.61.71.82.02.12.82.93.13.43.03.13.03.13.33.63.82.42.5
Percentage of Assets0.40.30.30.30.30.20.20.30.30.30.20.10.10.10.10.10.10.10.10.20.20.20.20.20.20.20.20.30.20.2
Percentage of Assets us-gaap:DevelopedTechnologyRights0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1413141515151212131311112321122223223344444
Percentage of FiniteLivedIntangibleAssetsNet1.41.31.41.41.41.41.11.11.11.10.10.10.10.10.20.30.30.20.20.30.30.30.30.40.30.20.40.40.60.60.60.60.2
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value303289303328310291330338371412391383398390406423317281273264276244247255243170166182121125129941011191191331491498584119
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.12.32.32.11.92.22.22.32.62.62.62.72.82.72.82.32.42.32.22.32.01.91.91.91.41.31.51.31.41.41.11.10.80.90.90.80.90.80.81.1

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value5450422736924531564165705799614860365262472349874886408240544308442929442852314634402980319434243578280027072416111492780598785960304980591997958231236723342856
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.830.428.432.138.941.839.040.638.233.331.334.033.728.827.428.532.324.824.226.028.124.725.226.127.622.321.720.212.110.29.011.19.542.837.941.654.250.822.923.626.6

Debt Current

us-gaap:DebtCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value11463915394671239875808768960480
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.72.84.23.38.55.65.45.16.13.0

Long Term Debt Current

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value183148146149218198176174237177168149187175159172175158173188207189182188227228255252217172149160147164175180151142138172119
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.11.11.51.31.21.11.51.11.11.01.31.21.11.11.31.31.51.61.71.61.41.41.71.82.02.12.41.91.71.81.61.21.31.30.80.91.31.71.1

Other Accrued Liabilities Current

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-31
Value171161147132321253173115161859411517412913416116913814712513311613513518614111412711611911512012012115115814911913471
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.10.92.21.61.20.81.00.50.60.81.20.90.91.11.21.21.21.01.11.01.11.01.41.10.91.11.31.31.31.31.30.91.11.10.80.71.30.7

Long Term Debt

us-gaap:LongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value29622996293930222328295630723079315537273589305836213603236424352313234524082514263427182785196619761986199620072117221322092321
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.021.522.621.416.118.820.720.320.023.623.820.925.025.519.920.719.118.518.419.420.921.823.321.421.622.322.422.215.016.815.514.3

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value296229962939302223282956307230793155372732423603368937312565236424152281230623132345240820842589267326471829193119411951196220722168206921502181184619121867
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.021.522.621.416.118.820.720.320.023.622.425.524.924.718.719.920.518.818.819.118.518.416.120.621.422.119.921.121.821.921.714.716.514.611.913.517.819.317.4

Deferred Tax Liabilities Noncurrent

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312015-03-312014-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value20111131199109101111111012
Percentage of MinorityInterest100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value171179170175180137154177168162142146144144140161160142143147154159137148147153182192192196192198182179177187195198182170197
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.31.31.21.20.91.01.21.11.00.91.01.01.00.91.11.21.21.21.21.31.31.11.11.11.21.51.62.12.12.22.22.01.31.31.31.11.21.81.71.8

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value53965639532755515494544956025542572558875735557653525430575457175697560955465716554457936117620562396184605558625200520851354961515249764987515050264718506746834932
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.540.541.039.337.934.737.736.636.337.338.138.036.938.438.937.941.547.347.147.245.347.948.247.348.149.248.549.056.657.057.655.657.135.337.936.227.829.148.947.346.0

Common Stock Value

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value51405027490148294732455843994309414639703787368035953479375736793609357134643366327632923231313430322976285727652699267826142547247623912310220021082004186717661610
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.736.137.834.232.629.029.628.526.325.125.125.124.824.625.424.426.330.129.427.826.827.225.523.923.423.722.923.129.429.329.328.527.417.017.615.511.712.418.017.815.0

Treasury Stock Value

us-gaap:TreasuryStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value3643363283273272972912902892472412252211761691661451111051049441114511171026100510231027105910581063101790686076977078679631021210
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.42.52.32.31.92.01.91.81.61.61.51.51.21.11.11.10.90.90.90.80.39.08.57.98.08.28.611.511.611.911.410.06.15.85.44.44.93.02.10.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value-1909-1686-1833-1666-1645-1530-1184-1191-1060-862-825-892-987-979-882-860-770-864-847-805-883-682-325-142-71-67-51-139-218-185-222-368-218-350-346-62-82-272-268-647-406
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-12.9-12.1-14.1-11.8-11.3-9.7-8.0-7.9-6.7-5.5-5.5-6.1-6.8-6.9-6.0-5.7-5.6-7.3-7.2-6.7-7.2-5.6-2.6-1.1-0.5-0.5-0.4-1.2-2.4-2.0-2.5-4.1-2.4-2.5-2.6-0.4-0.5-1.7-2.6-6.5-3.8

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value3803391011863373601427937530095270244284631742551492383810817134-164
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.131.89.217.532.431.71.527.232.629.49.827.225.10.06.819.428.220.031.65.113.520.94.5-2.10.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-154-10932-89-74-3176159-8-81731-96-8-66-18-1279-294-14-101-1363-24-6533-8
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.4-10.22.9-8.4-7.1-2.77.915.5-0.7-80.23.2-9.7-0.80.0-1.9-142.6-32.5-1.9-13.4-1.77.9-2.9-8.74.3-1.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value468-208-156-271-302-121-71-498-33736546-272-192-69-135112428-35-82-86-159-27-172-68-121
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.6-19.5-14.2-25.5-29.1-10.7-7.4-48.5-29.335.84.8-27.4-19.80.0-14.5125.33.1-4.7-10.9-11.6-19.9-3.3-22.9-8.8-14.9

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value3803391011863373601427937530095270244284631742551492383810817134-164
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.131.89.217.532.431.71.527.232.629.49.827.225.10.06.819.428.220.031.65.113.520.94.5-2.10.5

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value203203150174247-441631621772461711471691317013213813391231011031138842868993851109210410196616069
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.019.113.716.423.8-3.916.915.815.424.117.714.817.414.17.814.615.816.51.015.011.711.514.010.85.611.412.011.310.611.611.012.713.411.07.97.47.8

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-03-31
Value203247
Percentage of NetIncomeLoss100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.023.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.0

Profit Loss

Depreciation Depletion And Amortization

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-154-10932-89-74-3176159-8-81731-96-8-66-18-1279-294-14-101-1363-24-6533-8
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.4-10.22.9-8.4-7.1-2.77.915.5-0.7-80.23.2-9.7-0.80.0-1.9-142.6-32.5-1.9-13.4-1.77.9-2.9-8.74.3-1.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value263925432039272916423828362324312024221610121115
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value468-208-156-271-302-121-71-498-33736546-272-192-69-135112428-35-82-86-159-27-172-68-121
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.6-19.5-14.2-25.5-29.1-10.7-7.4-48.5-29.335.84.8-27.4-19.80.0-14.5125.33.1-4.7-10.9-11.6-19.9-3.3-22.9-8.8-14.9

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value64400665150000140498150
Percentage of ProceedsFromIssuanceOfLongTermDebt100.00.00.0100.0100.00.00.00.00.0100.0100.0100.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ndaq:A0875SeniorUnsecuredNotesDueFebruary132030, us-gaap:SeniorNotes



Period End2020-03-31
Value644
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0

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

ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-04-30
Value485
Percentage of ProceedsFromIssuanceOfLongTermDebt0.0

us-gaap:ShortTermDebtType

ndaq:OneBillionFiveYearRevolvingCreditFacility



Period End2020-03-31
Value799
Percentage of ProceedsFromIssuanceOfLongTermDebt124.1

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value67100700515000115251367005552514611111211135701700113
Percentage of RepaymentsOfLongTermDebt100.00.00.0100.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-31
Value7877787773727273636364635341252221
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-31
Value7877787773727273636364635341252221
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312013-03-312012-03-31
Value1220150500054241992819015629301050
Percentage of PaymentsForRepurchaseOfCommonStock100.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value67100700515000115251367005552514611111211135701700113
Percentage of RepaymentsOfLongTermDebt100.00.00.0100.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

ndaq:A0875SeniorUnsecuredNotesDueFebruary132030



Period End2020-03-31
Value0.00875
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:A0875SeniorUnsecuredNotesDueFebruary1320300.0

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDue2029



Period End2020-03-31
Value0.0175
Percentage of DebtInstrumentInterestRateStatedPercentage200.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:OnePointSevenFiveSeniorUnsecuredNotesDue20290.0

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDueMay192023



Period End2020-03-31
Value0.0175
Percentage of DebtInstrumentInterestRateStatedPercentage200.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:OnePointSevenFiveSeniorUnsecuredNotesDueMay1920230.0

ndaq:ThreePointEightFiveSeniorSecuredNotesDueJune302026



Period End2020-03-31
Value0.0385
Percentage of DebtInstrumentInterestRateStatedPercentage440.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:ThreePointEightFiveSeniorSecuredNotesDueJune3020260.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030, us-gaap:SeniorNotes



Period End2020-03-31
Value0.00875
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030 us-gaap:SeniorNotes0.0

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

ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-02-29
Value0.03875
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021 us-gaap:SeniorNotes us-gaap:SubsequentEvent0.0

ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-04-30
Value0.0325
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050 us-gaap:SeniorNotes us-gaap:SubsequentEvent0.0

ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-02-29
Value0.00875
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030 us-gaap:SeniorNotes us-gaap:SubsequentEvent0.0

us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

srt:Maximum, ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-04-30
Value0.0525
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum ndaq:ThreePointTwoFiveSeniorUnsecuredNotesDue2050 us-gaap:SeniorNotes us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value0.256-0.0160000000000000140.3020.2720.2110.251999999999999950.220.4380.259-0.102000000000000010.2750.310.2210.3420.5210.3230.330.310.360.310.380.34
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value00000000000011112222333444557799991010101010
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value56.9454.3253.6852.9149.6149.1948.0847.3845.0943.8443.041.929.6422.3223.7225.9427.8727.7427.7927.8727.6927.5626.9826.2925.725.2124.2923.9921.4121.118.4618.3518.3418.3318.318.2916.9218.1818.08
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value24373.017046.011951.0575786.0250.061341.04453.036735.0448015.0104630.022877.050659.0559698.0570806.0747958.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value26780.00.00.0127685.051914.045812.0834.0678.0130507.00.01228.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod109.90.00.022.220765.674.718.71.829.10.05.4

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value45091.00.00.0297931.099622.00.00.02571.0481504.00.0523.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod185.00.00.051.739848.80.00.07.0107.50.02.3

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value1722212016181818151818191516141491212107888
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value3243463463650
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.00.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-31
Value1044362333363539586376356429399551374464418276366357476
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Repayments Of Short Term Debt

Proceeds From Sale Of Short Term Investments

ndaq:ContractWithCustomerLiabilityRevenueTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-3-223401
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment100.0100.0100.0100.0100.00.0100.0

us-gaap:ProductOrService

ndaq:AnnualRenewalFeesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0-1000000.01000000.00.00.00.00.0
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment-0.050.050.00.00.00.00.0

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.01000000.00.00.00.00.0-1000000.0
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment-0.0-50.00.00.00.00.0-100.0

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.00.0-1000000.01000000.01000000.00.00.0
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment-0.0-0.0-50.033.325.00.00.0

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value12-11010
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment-33.3-100.0-50.033.30.00.00.0

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4-431301
Percentage of ContractWithCustomerLiabilityRevenueTranslationAdjustment133.3200.0150.033.375.00.0100.0

ndaq:ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition



Period End2020-03-312019-12-312019-09-30
Value279-45-44
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition100.0100.0100.0

us-gaap:ProductOrService

ndaq:AnnualRenewalFeesAndOther



Period End2020-03-312019-12-312019-09-30
Value181-59-57
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition64.9131.1129.5

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-30
Value2129
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition7.5-4.4-20.5

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-30
Value486-11
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition17.2-13.325.0

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-30
Value766
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition2.5-13.3-13.6

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-30
Value621
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition2.2-4.4-2.3

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-30
Value16-28
Percentage of ContractWithCustomerLiabilitycurrentperiodadditionsnetofrecognition5.74.4-18.2

us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService

ndaq:GrossProfitPercentage

ndaq:MarketServices, us-gaap:TransferredAtPointInTime



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.720.00100000000000000090.650.640.65-0.00400000000000000360.630.650.66
Percentage of GrossProfitPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:MarketServices, us-gaap:TransferredOverTime



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.28-0.00100000000000000090.350.360.350.00400000000000000360.370.350.34
Percentage of GrossProfitPercentage38.9-100.053.856.253.8-100.058.753.851.5

ndaq:PaymentsAccretionsAndOtherofLongtermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value680-5783-294416776742-33578-18
Percentage of PaymentsAccretionsAndOtherofLongtermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ndaq:A0875SeniorUnsecuredNotesDueFebruary132030, us-gaap:SeniorNotes



Period End2020-03-31
Value-11
Percentage of PaymentsAccretionsAndOtherofLongtermDebt-1.6

ndaq:FourPointTwoFivePercentSeniorUnsecuredNotesDueJune12024, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.00.00.00.00.0-1000000.00.00.00.00.00.0-1000000.0
Percentage of PaymentsAccretionsAndOtherofLongtermDebt0.0-0.00.0-0.00.00.0-14.30.00.00.0-0.00.05.6

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDue2029, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-30
Value10-189
Percentage of PaymentsAccretionsAndOtherofLongtermDebt1.531.610.8

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDueMay192023, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value10-1938-20158438-20-11-24-46-9
Percentage of PaymentsAccretionsAndOtherofLongtermDebt1.533.345.869.034.150.057.150.0-27.0-550.072.7-8.050.0

ndaq:ThreePointEightFiveSeniorSecuredNotesDueJune302026, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.00.0-1000000.00.00.00.00.00.00.00.0-1000000.00.0
Percentage of PaymentsAccretionsAndOtherofLongtermDebt0.0-0.00.03.40.00.00.00.00.00.0-0.0-0.2-0.0

ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value671-1928-9158438-20-11-24-48-8
Percentage of PaymentsAccretionsAndOtherofLongtermDebt98.733.333.731.034.150.057.150.0-27.0-550.072.7-8.344.4

us-gaap:ShortTermDebtType

ndaq:OneBillionFiveYearRevolvingCreditFacility



Period End2020-03-31
Value0.0
Percentage of PaymentsAccretionsAndOtherofLongtermDebt0.0

ndaq:PaymentsRelatedToEmployeeSharesWithheldForTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value288103061142616247712334
Percentage of PaymentsRelatedToEmployeeSharesWithheldForTaxes100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:ProceedsFromDisbursementsOfCustomerFunds



Period End2020-03-312019-03-31
Value036
Percentage of ProceedsFromDisbursementsOfCustomerFunds0.0100.0

ndaq:RegulatoryOperatingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value788878888898886777777788788999899991010
Percentage of RegulatoryOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:ServicesProvidedOverNumberOfMarketPlaces

ndaq:SurveillanceTechnology



Period End2020-03-31
Value160.0
Percentage of ServicesProvidedOverNumberOfMarketPlaces100.0

us-gaap:ProductOrService, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

ndaq:CashEquitiesTradingMarkets, country:US, ndaq:MarketServices



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.00.00.03.00.00.0
Percentage of ServicesProvidedOverNumberOfMarketPlaces1.90.00.00.00.00.0

ndaq:OptionsMarkets, country:US, ndaq:MarketServices



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6.00.00.06.00.00.0
Percentage of ServicesProvidedOverNumberOfMarketPlaces3.80.00.00.00.00.0

us-gaap:StatementBusinessSegments

ndaq:MarketTechnology



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value100.00.00.0100.00.00.010.090.00.00.01.089.0
Percentage of ServicesProvidedOverNumberOfMarketPlaces62.50.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AwardType, us-gaap:PlanName

ndaq:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesEarnedMaximum

ndaq:PerformanceSharesNegativeShareholderReturn, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.00.00.00.01.00.00.00.01.00.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesEarnedMaximum100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2.00.00.00.02.00.00.00.02.00.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesEarnedMaximum200.00.00.00.0200.00.00.00.0200.00.00.0

us-gaap:AwardType, us-gaap:PlanName

ndaq:SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-09-302019-06-302019-03-312018-03-312017-03-31
Value26780.00.00.051914.014497.056533.0
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod100.00.00.0100.0100.0100.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-09-302019-06-302019-03-312018-03-312017-03-31
Value43684.00.00.099622.0237876.0538892.0
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod163.10.00.0191.91640.9953.2

us-gaap:AwardType, us-gaap:PlanName, us-gaap:SubsequentEventType

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram, us-gaap:SubsequentEvent



Period End2020-02-252019-02-22
Value26780.051914.0
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod0.00.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram, us-gaap:SubsequentEvent



Period End2020-02-252019-02-22
Value43684.099622.0
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAdditionalGrantsinPeriod0.00.0

ndaq:TotalVolumeInClearedPower



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-06-302013-03-312012-06-30
Value292.0228.0194.0170.0250.0214.0276.0305.0272.0288.0264.0268.0379.0420.0363.0429.0884.0460.0867.0
Percentage of TotalVolumeInClearedPower100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1722212016181818151818191519191617181415161414991212121010107810
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType

us-gaap:EmployeeStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1000000.01000000.01000000.01000000.01000000.00.01000000.01000000.01000000.00.01000000.01000000.01000000.01000000.01000000.01000000.01000000.0
Percentage of AllocatedShareBasedCompensationExpense5.94.54.85.06.20.05.65.66.70.05.65.36.70.05.35.36.2

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-30
Value12171514121313131110111191112910118910885587766
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value25252526262627282825222223231917151515171818181313131313141313
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2525252626262728282522222323231917
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302014-09-302014-06-302014-03-312013-06-302013-03-312012-09-30
Value751059146-1010243116123594351428258-3
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value751059146-10102431162012359
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value68229-30-176-4721020-7330-152177-9046142-90
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-07-232019-09-302019-04-232019-06-302019-01-292019-03-312018-12-312018-07-242018-09-302018-06-302018-03-262018-03-312018-01-302018-03-312017-12-312017-09-302017-06-302017-03-312016-10-262016-09-302016-06-302016-03-282016-01-282016-03-312015-09-302015-06-302015-03-312014-09-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value0.470.47000000000000020.470.470.470.470.440.440.439999999999999950.440.440.00.440.440.380.820.37999999999999990.380.380.320.320.320.00.320.250.570.250.250.150.150.280.130.130.130.130.130.13
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Dividends

ndaq:DividendDeclarationDateFirstQuarter



Period End2020-01-28
Value0.47
Percentage of CommonStockDividendsPerShareDeclared0.0

us-gaap:SubsequentEventType

us-gaap:SubsequentEvent



Period End2020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-312017-01-312015-10-222015-07-232015-04-302015-01-312014-10-312014-07-31
Value0.490.470.470.470.470.440.440.440.320.250.250.250.150.150.15
Percentage of CommonStockDividendsPerShareDeclared0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommunicationsAndInformationTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value3535333333333230323431303028272523233522232222201591817171716171314161414
Percentage of CommunicationsAndInformationTechnology100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value782018-58198208222
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:AnnualRenewalFeesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value111-54566161
Percentage of ContractWithCustomerLiabilityRevenueRecognized1.35.05.693.128.329.327.5

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value1826-1038
Percentage of ContractWithCustomerLiabilityRevenueRecognized23.110.033.317.219.2

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value265-418403940
Percentage of ContractWithCustomerLiabilityRevenueRecognized33.325.0-22.2-31.020.218.818.0

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value105588-215
Percentage of ContractWithCustomerLiabilityRevenueRecognized12.825.027.8-13.84.0-1.06.8

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5330778
Percentage of ContractWithCustomerLiabilityRevenueRecognized6.415.016.7-0.03.53.43.6

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1847-20495247
Percentage of ContractWithCustomerLiabilityRevenueRecognized23.120.038.934.524.725.021.2

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-156-2015-1631324-27-914-12-21292-55-10-233616-8-110-938
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:DefinedContributionPlanCostRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value4343343343334332
Percentage of DefinedContributionPlanCostRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value48474748485153535348474745464138343434343535332827272625262826272525252727
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value000088816
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingExpense0.00.00.00.0100.0100.0100.0100.0

us-gaap:Dividends

us-gaap:DividendsCommonStockCash

ndaq:DividendDeclarationDateFirstQuarter



Period End2020-01-28
Value78
Percentage of DividendsCommonStockCash100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value787778777372720136
Percentage of DividendsCommonStockCash0.00.00.00.00.00.00.00.00.0

us-gaap:SubsequentEventType

us-gaap:SubsequentEvent



Period End2020-04-302020-01-312019-10-312019-07-312019-04-302019-01-312018-10-312018-07-31
Value8178777878737272
Percentage of DividendsCommonStockCash0.00.00.00.00.00.00.00.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-127-7-2-821-1300582-70
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense



Period End2020-03-312019-03-31
Value54
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0

us-gaap:GainLossOnSaleOfBusiness



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-09-30
Value0000270-8410000-14
Percentage of GainLossOnSaleOfBusiness0.00.00.00.0100.00.0100.0100.00.00.00.00.0100.0

us-gaap:GainsLossesOnExtinguishmentOfDebt



Period End2020-03-312019-03-31
Value-360
Percentage of GainsLossesOnExtinguishmentOfDebt100.00.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-3600000
Percentage of GainsLossesOnExtinguishmentOfDebt100.00.00.00.00.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030, us-gaap:SeniorNotes



Period End2020-03-31
Value-36
Percentage of GainsLossesOnExtinguishmentOfDebt100.0

us-gaap:GoodwillAcquiredDuringPeriod



Period End2020-03-312019-03-312016-03-312015-03-31
Value133137145111
Percentage of GoodwillAcquiredDuringPeriod100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

ndaq:GlobalInformation



Period End2020-03-312019-03-312016-03-312015-03-31
Value133016111
Percentage of GoodwillAcquiredDuringPeriod100.00.011.0100.0

ndaq:MarketServices



Period End2020-03-312019-03-312016-03-31
Value0038
Percentage of GoodwillAcquiredDuringPeriod0.00.026.2

ndaq:MarketTechnology



Period End2020-03-312019-03-312016-03-31
Value013791
Percentage of GoodwillAcquiredDuringPeriod0.0100.062.8

us-gaap:GoodwillForeignCurrencyTranslationGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-173-409154-212044114-194-37-2110617443
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-10-21102433-1-14-1-110133
Percentage of GoodwillForeignCurrencyTranslationGainLoss5.85.16.5-100.03.37.5-7.17.22.74.89.47.57.0

ndaq:GlobalInformation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-51-14552-1441568-70-17-6356113
Percentage of GoodwillForeignCurrencyTranslationGainLoss29.535.533.850.036.735.457.136.145.928.633.035.130.2

ndaq:MarketServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-91-21080-46222710-102-19-14569222
Percentage of GoodwillForeignCurrencyTranslationGainLoss52.651.351.9200.051.751.571.452.651.466.752.852.951.2

ndaq:MarketTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-21-331211025-3-800585
Percentage of GoodwillForeignCurrencyTranslationGainLoss12.18.17.8-50.08.35.7-21.44.1-0.0-0.04.74.611.6

us-gaap:IncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312013-09-302011-09-302011-06-302010-09-302010-06-302009-09-302009-06-30
Value1713151045565254242122114-111110-18
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value28-131-713427-5-5465616-46121436-14426-17-199-44344
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value204-67-60-74186-67-57-77208-47-66
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-5349201-7959316-5941511-98-89-67-58-522810-80-5518-5414
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccountsPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-03-31
Value2998-136101-4088-20497097-13888-27-18-42-8-2673-132-37-12-80
Percentage of IncreaseDecreaseInOtherAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-6945-58-1022881763-1-3950-289-18-416-34-17177-9-80239368631
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value-836-5-16535174103517-44-5-19-2013205-27-2928-27-14-23
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value17435-13-305024-41-7512781-72-72385-3642-144-92026-6380-9
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value10111021202332343333343330444033
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value33231262232732563315
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value2233323221222111111112223422233222232
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value19518917516917517816417319718216916316116816415215014414713614515815012611711611311311211811511210210498100105
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost



Period End2020-03-312019-09-302019-06-302019-03-31
Value25242424
Percentage of LeaseCost100.0100.0100.0100.0

us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityCommitmentFeePercentage

srt:Maximum, ndaq:OneBillionFiveYearRevolvingCreditFacility, us-gaap:RevolvingCreditFacility



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0040.00.00.00.004
Percentage of LineOfCreditFacilityCommitmentFeePercentage100.00.00.00.0100.0

srt:Minimum, ndaq:OneBillionFiveYearRevolvingCreditFacility, us-gaap:RevolvingCreditFacility



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.001250.00.00.00.00125
Percentage of LineOfCreditFacilityCommitmentFeePercentage31.20.00.00.031.2

us-gaap:MarketingAndAdvertisingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value910810101071099787886667598787666645555433
Percentage of MarketingAndAdvertisingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NumberOfOperatingSegments



Period End2020-03-312019-12-312019-09-30
Value4.00.00.0
Percentage of NumberOfOperatingSegments100.00.00.0

us-gaap:OccupancyNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value25252424242323232526232323231920222121262425262322262223232323232321221918
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost



Period End2020-03-312019-09-302019-06-302019-03-31
Value20191920
Percentage of OperatingLeaseCost100.0100.0100.0100.0

us-gaap:OperatingLeasePayments



Period End2020-03-312019-03-31
Value2018
Percentage of OperatingLeasePayments100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent



Period End2020-03-312019-03-31
Value-215-106
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-03-31
Value-223-115
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTaxPortionAttributableToParent



Period End2020-03-312019-03-31
Value89
Percentage of OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTaxPortionAttributableToParent100.0100.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-03-31
Value-223-115
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0

us-gaap:ConsolidationItems

us-gaap:OtherGeneralExpense

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value101243211232-210
Percentage of OtherGeneralExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-03-31
Value1-1-3-150-5-1-6-3-73-14-7-1-3-41-7-1
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNonoperatingIncome



Period End2020-03-312019-03-31
Value50
Percentage of OtherNonoperatingIncome100.00.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-7017620060-303110-40010
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.00.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.00.00.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302014-06-30
Value36001100000009
Percentage of PaymentsOfDebtExtinguishmentCosts100.00.00.0100.00.00.00.00.00.00.00.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312012-12-312012-09-302010-09-302009-09-30
Value15713001931010007760002132261540721
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.00.00.0100.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireShortTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-03-312010-09-302010-03-312009-09-30
Value92195732101011276216270755714193144609611212512181141911996
Percentage of PaymentsToAcquireShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementBenefitExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value55555745694441044
Percentage of PensionAndOtherPostretirementBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value024001080-8294000
Percentage of ProceedsFromDivestitureOfBusinessesNetOfCashDivested0.0100.00.00.0100.00.0100.0100.00.00.00.0

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value6440068000000
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt100.00.00.0100.00.00.00.00.00.0

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

ndaq:ZeroPointEightSevenFivePercentSeniorUnsecuredNotesDue2030, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-02-29
Value648
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt0.0

us-gaap:ProceedsFromLinesOfCredit



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value79915000014002045
Percentage of ProceedsFromLinesOfCredit100.0100.00.00.00.00.0100.00.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-03-31
Value20
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.00.0

us-gaap:ProceedsFromRepaymentsOfCommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-42-14872-73265-3541-193-18326-340
Percentage of ProceedsFromRepaymentsOfCommercialPaper100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11411412017113875160647560133811206413410094
Percentage of ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromShortTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value17881727108511746929045618401791
Percentage of ProceedsFromShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermDebtType

us-gaap:CommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9891727108511746929045618401791
Percentage of ProceedsFromShortTermDebt55.3100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProfessionalFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value27283130373933343744393836403535334233374239413529272423222322211820192017
Percentage of ProfessionalFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfShortTermDebt



Period End2020-03-312018-03-31
Value10311809
Percentage of RepaymentsOfShortTermDebt100.0100.0

us-gaap:ShortTermDebtType

us-gaap:CommercialPaper



Period End2020-03-312018-03-31
Value10311809
Percentage of RepaymentsOfShortTermDebt100.0100.0

us-gaap:RestructuringCharges



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-31
Value12930000000003398215009810179
Percentage of RestructuringCharges100.0100.0100.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value12930000000000339
Percentage of RestructuringCharges100.0100.0100.00.00.00.00.00.00.00.00.00.0100.0100.0

us-gaap:RestructuringCostAndReserve

ndaq:AssetImpairment



Period End2020-03-312019-12-312019-09-302016-06-302016-03-312015-06-302015-03-312013-03-312012-12-312012-09-302012-06-302012-03-31
Value3123536913024
Percentage of RestructuringCharges25.011.176.715.233.3300.06.011.137.50.011.844.4

ndaq:ConsultingServices



Period End2020-03-31
Value3
Percentage of RestructuringCharges25.0

us-gaap:ContractTermination



Period End2020-03-31
Value2
Percentage of RestructuringCharges16.7

us-gaap:EmployeeSeverance



Period End2020-03-312019-12-312019-09-302016-06-302016-03-312015-09-302015-06-302015-03-312013-03-312012-06-302012-03-31
Value1531842318695
Percentage of RestructuringCharges8.355.610.054.544.425.0150.012.066.752.955.6

us-gaap:OtherRestructuring



Period End2020-03-312019-12-312019-09-302016-06-302016-03-312015-09-302015-06-302015-03-312013-03-312012-06-30
Value3-129223111
Percentage of RestructuringCharges25.0-11.16.727.322.225.0150.00.711.15.9

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability



Period End2020-03-312019-03-31
Value016
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability0.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate

us-gaap:EmployeeStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.150.00.150.00.150.00.150.150.150.150.150.150.150.00.15
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value32205.025563.024607.037096.065798.023623.037849.0157175.034190.018827.052655.056473.079164.052787.071543.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value12833.05652.01985.06974.013984.03697.0613.015408.06629.0-299.06360.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod39.822.18.118.821.315.71.69.819.4-1.612.1

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6079.00.00.00.06101.01079.00.00.00.00.04319.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod18.90.00.00.09.34.60.00.00.00.08.2

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value79.090.62999999999999551.20000000000000281.810000000000002370.350.57000000000000031.19999999999999572.150000000000005759.940.60999999999999942.5300000000000012.670000000000001746.4835.3832.37
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value82.40.40000000000000570.17000000000000170.319999999999993274.540.98999999999999490.150000000000005681.349999999999994359.34-0.0300000000000011371.6799999999999997
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue104.263.514.217.7106.0173.712.562.899.0-4.966.4

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value96.220.00.00.0103.2981.570.00.00.00.0-1.1200000000000045
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue121.70.00.00.0146.814310.50.00.00.00.0-44.3

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value102.240.299999999999997160.270000000000010236.919999999999987577.54-0.109999999999999430.07999999999999830.2800000000000011481.411.40000000000000570.18999999999999773-0.03000000000000113765.9262.8149.22
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value84.170.00.01.48000000000000482.080.60999999999999940.069999999999993180.06000000000000227480.230.00.020000000000010232
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue82.30.00.021.4105.9-554.587.521.498.60.010.5

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value82.910.00.03.29999999999999793.250.00.00.170000000000001790.750.00.020000000000003126
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue81.10.00.047.7120.3-0.00.060.7111.50.010.5

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value365385.056053.015483.041287.0435765.033255.022583.058887.0588107.07160.0626232.0125798.0343633.0236303.0132157.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3668.0135251.04526.01319.06888.0163555.00.00.06702.0191344.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod1.0241.329.23.21.6491.80.00.01.12672.40.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value300767.00.00.00.0431751.00.00.00.0655204.00.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod82.30.00.00.099.10.00.00.0111.40.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-31
Value68.481.9900000000000020.31000000000000232.079999999999998357.071.10000000000000140.67000000000000171.619999999999997445.250.13000000000000256-5.6199999999999971.219999999999998942.8336.4526.94
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value66.123.12999999999999552.6000000000000085-0.02000000000001023264.939.0900000000000030.00.049.4-3.7899999999999990.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue96.6157.3838.7-1.0113.8826.40.00.0109.2-2915.4-0.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value81.570.00.00.093.250.00.00.064.080.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue119.10.00.00.0163.40.00.00.0141.60.0-0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value2113111421249214173155116732763021118711
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:Vesting

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

ndaq:AtOrAboveManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheOne



Period End2020-03-31
Value0.333
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

ndaq:AtOrAboveManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheThree



Period End2020-03-31
Value0.333
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

ndaq:AtOrAboveManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheTwo



Period End2020-03-31
Value0.333
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

ndaq:BelowManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheOne



Period End2020-03-31
Value0.25
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage75.1

ndaq:BelowManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheThree



Period End2020-03-31
Value0.5
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage150.2

ndaq:BelowManagerLevel, us-gaap:RestrictedStock, us-gaap:ShareBasedCompensationAwardTrancheTwo



Period End2020-03-31
Value0.25
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage75.1

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1000000.00.01000000.042606.01000000.01000000.00.058887.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.00.0100.0100.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value0000000000000000000000010000
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value172221201618181815
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2881030611
Percentage of StockholdersEquityOther100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:SubleaseIncome



Period End2020-03-312019-09-302019-06-302019-03-31
Value1121
Percentage of SubleaseIncome100.0100.0100.0100.0

us-gaap:TreasuryStockSharesAcquired



Period End2020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312015-03-312013-03-312011-12-31
Value101002100020003
Percentage of TreasuryStockSharesAcquired100.00.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

ndaq:OtherRepurchasesOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-03-312014-03-312013-03-312012-12-312012-09-302012-03-31
Value271509.072437.09247.07875.0346691.069563.09987.012655.0519714.071115.0226875.042854.0668038.0534909.0551919.080912.0453860.022139.0107325.0
Percentage of TreasuryStockSharesAcquired23.00.00.60.00.00.01.70.541.318.394.80.030.1109.20.025.20.00.00.0

us-gaap:TreasuryStockValueAcquiredParValueMethod



Period End2020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value122015005424199281901560551629
Percentage of TreasuryStockValueAcquiredParValueMethod100.00.0100.00.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-31
Value12201505005424199
Percentage of TreasuryStockValueAcquiredParValueMethod100.00.0100.00.00.0100.0100.0100.0

us-gaap:VariableLeaseCost



Period End2020-03-312019-09-302019-06-302019-03-31
Value6675
Percentage of VariableLeaseCost100.0100.0100.0100.0

us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

ndaq:ApproximateCombinedMarketCapitalization

country:US, ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-30
Value12900000149000001340000013300000
Percentage of ApproximateCombinedMarketCapitalization100.0100.0100.0100.0

srt:Europe, ndaq:CorporateServices



Period End2020-03-312019-12-312019-09-302019-06-30
Value1300000160000014000001500000
Percentage of ApproximateCombinedMarketCapitalization10.110.710.411.3

dei:LegalEntity

ndaq:ContractValueOfResaleAndRepurchaseAgreements

ndaq:NasdaqClearingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1000300210038005500500410034003300230050004400630019006300550064001100
Percentage of ContractValueOfResaleAndRepurchaseAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedAfterYearFive



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2332143
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedAfterYearFive100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:InitialListingFees



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2332143
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedAfterYearFive100.0100.0100.0100.0100.0100.0100.0

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value394211157146258
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:AnnualRenewalFeesAndOther



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value18226160113
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear46.20.938.941.143.8

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value4039212439
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear10.218.513.416.415.1

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value9480363552
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear23.937.922.924.020.2

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value21268613
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear5.312.35.14.15.0

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value10105311
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear2.54.73.22.14.3

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302018-09-302018-06-30
Value4754261830
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInRemainderOfYear11.925.616.612.311.6

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFive



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5855576
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFive100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:InitialListingFees



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5755576
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFive100.087.5100.0100.0100.0100.0100.0

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.01000000.00.00.00.00.00.0
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFive0.012.50.00.00.00.00.0

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value981110882018
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8810987109
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour88.9100.090.990.0100.087.550.050.0

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10110132
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour11.10.09.110.00.012.515.011.1

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value00000077
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearFour0.00.00.00.00.00.035.038.9

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1212272421194038
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.00.00.00.00.00.01000000.00.0
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree0.00.00.00.00.00.02.50.0

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1111151311101514
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree91.791.755.654.252.452.637.536.8

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value11333266
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree8.38.311.112.514.310.515.015.8

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0098771818
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearThree0.00.033.333.333.336.845.047.4

ndaq:ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value503813187615413183
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value42207332110
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo8.05.315.38.04.95.616.012.0

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1024622934321
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo20.05.335.125.314.85.632.825.3

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1919252420202322
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo38.050.019.127.632.837.017.626.5

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value437777109
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo8.07.95.38.011.513.07.610.8

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1312332722213421
Percentage of ContractWithCustomerLiabilityExpectedToBeRecognizedInYearTwo26.031.625.231.036.138.926.025.3

us-gaap:DebtInstrument

ndaq:CreditFacilityAvailableLiquidity

ndaq:ClearinghouseCreditFacilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value193203198211210220219218185187188182172170181182209202204206179197211227218219220211216217215204206
Percentage of CreditFacilityAvailableLiquidity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:DefaultFundContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value505570525561553499515559536490494461433403421423474448451444357367378390392358314229229195191180163
Percentage of DefaultFundContributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

ndaq:Defaultfundcontributioncapitalresourcesavailable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value400458422473464436463489
Percentage of DefaultFundContributions79.280.480.484.383.987.489.987.5

ndaq:Defaultfundcontributionmemberpostedsurplusbalance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1051121038889635270
Percentage of DefaultFundContributions20.819.619.615.716.112.610.112.5

ndaq:NordicClearingMembersCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value414387406438475370407427
Percentage of DefaultFundContributions82.067.977.378.185.974.179.076.4

ndaq:NordicClearingMembersNonCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9118311912378129108132
Percentage of DefaultFundContributions18.032.122.721.914.125.921.023.6

ndaq:DefaultFundContributionsAndMarginDeposits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value7299672362986757689379448249861184168165858782077378710370296742708872637658756479797969888097039876110711148810228
Percentage of DefaultFundContributionsAndMarginDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

ndaq:CentralBankCertificates



Period End2020-03-312019-12-312018-12-31
Value10248961017
Percentage of DefaultFundContributionsAndMarginDeposits14.013.312.8

ndaq:EuropeanGovernmentDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value388508380
Percentage of DefaultFundContributionsAndMarginDeposits5.37.64.8

ndaq:NordicClearingMembersCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value32412996242231613274474242194441
Percentage of DefaultFundContributionsAndMarginDeposits44.444.638.546.847.559.751.151.6

ndaq:NordicClearingMembersNonCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value40583727387635963619320240304170
Percentage of DefaultFundContributionsAndMarginDeposits55.655.461.553.252.540.348.948.4

ndaq:SupranationalsAndStateOwnedEnterpriseDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value27814885
Percentage of DefaultFundContributionsAndMarginDeposits3.82.21.1

us-gaap:DemandDeposits



Period End2020-03-312019-12-312018-12-31
Value106913283094
Percentage of DefaultFundContributionsAndMarginDeposits14.619.838.9

us-gaap:RepurchaseAgreements



Period End2020-03-312019-12-312018-12-31
Value482116166
Percentage of DefaultFundContributionsAndMarginDeposits6.61.72.1

ndaq:DefaultFundsAndMarginDepositsAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value324129962422316132744742421944414026398838933671363333013323341136142228217523312635219425132579225319611934141222920919420415817
Percentage of DefaultFundsAndMarginDepositsAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:DefaultFundsAndMarginDepositsLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value324129962422316132744742421944414026398838933671363333013323341136142228217523312635219425132579225319611934141222920919420415817
Percentage of DefaultFundsAndMarginDepositsLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:DerivativeContractsMarketValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value157710481485151714752202190425501863149616671593152616072224284532542854299325102692248019782517292626501359211714481567161220711905
Percentage of DerivativeContractsMarketValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

ndaq:CommodityForwardsAndOptions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value382267359411577119611061447769524646578550613
Percentage of DerivativeContractsMarketValue24.225.524.227.139.154.358.156.741.335.038.836.336.038.1

ndaq:FixedIncomeOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value711602925889674600520763724729700700743727
Percentage of DerivativeContractsMarketValue45.157.462.358.645.727.227.329.938.948.742.043.948.745.2

ndaq:IndexOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value172658184731359180132111181185101116
Percentage of DerivativeContractsMarketValue10.96.25.55.54.96.14.83.17.17.410.911.66.67.2

ndaq:StockOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value312114120133151271187260238132140130132151
Percentage of DerivativeContractsMarketValue19.810.98.18.810.212.39.810.212.88.88.48.28.79.4

ndaq:Financialguaranteesobtainedtoprovidefurtherliquidityanddefaultprotectionrelatedtoclearingbusinesses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value101111111112121213141313121313
Percentage of Financialguaranteesobtainedtoprovidefurtherliquidityanddefaultprotectionrelatedtoclearingbusinesses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ndaq:LeaseLiability



Period End2020-03-312019-12-31
Value368392
Percentage of LeaseLiability100.0100.0

ndaq:MarginDeposits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value679461535773619663407445773480527880767580937746694567006608631966146815720771207622760285029313948410713111749999
Percentage of MarginDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

ndaq:NordicClearingMembersCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value28272609201627232799437238124014
Percentage of MarginDeposits41.642.434.943.944.158.749.349.9

ndaq:NordicClearingMembersNonCashContributions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value39673544375734733541307339224038
Percentage of MarginDeposits58.457.665.156.155.941.350.750.1

ndaq:SectionThirtyOneFeesPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value16113234170691092122512812831169811082716080982514782124261547482191457197106
Percentage of SectionThirtyOneFeesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ndaq:TotalNumberOfDerivativeContractsCleared

ndaq:NasdaqClearingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11111222221111221
Percentage of TotalNumberOfDerivativeContractsCleared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsAndNotesReceivableNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value21912121113
Percentage of AccountsAndNotesReceivableNet100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value25272632258527132732271626762712292630243012301129633104304630623001301130323257324332224354432843024278427042613776377138043797379837933790378037843780377637743736
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2191313131091314169533
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure



Period End2020-03-312019-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312010-12-31
Value002103242026111757180219082688232225562687240820292100152840939832818454290
Percentage of AssetsFairValueDisclosure0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value10101010111111105555566666666777122444436666
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType

us-gaap:EmployeeStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value11111122222222
Percentage of CommonStockCapitalSharesReservedForFutureIssuance15.916.316.516.516.817.318.218.342.036.237.339.341.134.3

us-gaap:ContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value472274337401478281348406287
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

ndaq:AnnualRenewalFeesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1822611201774601133
Percentage of ContractWithCustomerLiability38.60.718.129.937.01.417.227.81.0

ndaq:CorporateSolutionsRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value444141384036464937
Percentage of ContractWithCustomerLiability9.315.012.29.58.412.813.212.112.9

ndaq:InformationServicesRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1048282899680787340
Percentage of ContractWithCustomerLiability22.029.924.322.220.128.522.418.013.9

ndaq:InitialListingFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value666968666566656764
Percentage of ContractWithCustomerLiability14.025.220.216.513.623.518.716.522.3

ndaq:ListingOfAdditionalSharesFees



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value161417182220222834
Percentage of ContractWithCustomerLiability3.45.15.04.54.67.16.36.911.8

ndaq:MarketTechnologyRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6066687078757776109
Percentage of ContractWithCustomerLiability12.724.120.217.516.326.722.118.738.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value416211267333402194257310161
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption

us-gaap:AccountingStandardsUpdate201613, us-gaap:RetainedEarnings



Period End2020-01-01
Value-12
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-01
Value-12
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentCarryingAmount

ndaq:A0875SeniorUnsecuredNotesDueFebruary132030, us-gaap:SeniorNotes



Period End2020-03-312019-12-31
Value6550
Percentage of DebtInstrumentCarryingAmount100.00.0

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDue2029, us-gaap:SeniorNotes



Period End2020-03-312019-12-312018-12-31
Value6556650
Percentage of DebtInstrumentCarryingAmount100.00.00.0

ndaq:OnePointSevenFiveSeniorUnsecuredNotesDueMay192023, us-gaap:SeniorNotes



Period End2020-03-312019-12-312018-12-31
Value658668682
Percentage of DebtInstrumentCarryingAmount100.50.00.0

ndaq:ThreePointEightFiveSeniorSecuredNotesDueJune302026, us-gaap:SeniorNotes



Period End2020-03-312019-12-312018-12-31
Value497497496
Percentage of DebtInstrumentCarryingAmount75.90.00.0

ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021, us-gaap:SeniorNotes



Period End2020-03-312019-12-312018-12-31
Value0671686
Percentage of DebtInstrumentCarryingAmount0.00.00.0

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

ndaq:ThreePointEightSevenFivePercentSeniorUnsecuredNotesDueJune72021, us-gaap:SeniorNotes, us-gaap:SubsequentEvent



Period End2020-02-29
Value600
Percentage of DebtInstrumentCarryingAmount0.0

us-gaap:DebtLongtermAndShorttermCombinedAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4108338734783489356738313880384741154207374335523603
Percentage of DebtLongtermAndShorttermCombinedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilitiesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value50755252551050350113799600602726732702720626
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNumberOfInstrumentsHeld



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value319369482498714925946946249773522810579542897704825745327105815730
Percentage of DerivativeNumberOfInstrumentsHeld100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

ndaq:CommodityForwardsAndOptions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value000001110221032103
Percentage of DerivativeNumberOfInstrumentsHeld0.60.60.60.60.61.72.12.42.23.02.93.03.03.63.53.43.22.9

ndaq:FixedIncomeOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value521151152216116201410514107419
Percentage of DerivativeNumberOfInstrumentsHeld18.823.022.624.022.423.223.523.023.521.621.221.821.015.014.515.115.518.6

ndaq:IndexOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value184735231149352413443221115038261449
Percentage of DerivativeNumberOfInstrumentsHeld61.051.051.149.648.649.849.650.352.047.747.046.346.052.052.250.752.047.1

ndaq:StockOptionsAndFutures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6231812624171152620137282216833
Percentage of DerivativeNumberOfInstrumentsHeld19.625.525.825.928.425.424.824.422.327.628.829.030.029.329.930.829.431.7

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value13218813711911819914511511117013012411020717512987171121947114311010096154115845911186745613210588711229774114
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value5158667345555864725456636952
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value10111417111412131691113
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized19.619.021.223.324.425.520.720.322.216.719.620.6

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value242937452328344046212733
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized47.150.056.161.651.150.958.662.563.938.948.252.4

us-gaap:EquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1721561591471361351311381331311271331281241351327072716967252628293026261313
Percentage of EquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value4449496861447679152
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302010-12-31
Value503501466453428409562550533506481477460436423400392371357345325322318338324307291273262251218204191186190
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ndaq:ForeignCurrencyTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-06-302012-12-312012-06-302011-12-31
Value-94-55-63-52-51-64-62-60-48-46-44-46-56-58-46-45-38-43-40-35-39-26-14-4-31-5-4
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization-18.7-11.0-13.5-11.5-11.9-15.6-11.0-10.9-9.0-9.1-9.1-9.6-12.2-13.3-10.9-11.2-9.7-11.6-11.2-10.1-12.0-8.1-4.4-1.2-1.10.40.0-2.0

us-gaap:CustomerRelationships



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value576532508484460456606579553526502499485464442421403387372358343329314325309292278262250238227216196
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization114.5106.2109.0106.8107.5111.5107.8105.3103.8104.0104.4104.6105.4106.4104.5105.2102.8104.3104.2103.8105.5102.298.796.295.495.195.596.095.494.80.00.096.1

us-gaap:DevelopedTechnologyRights



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value161917181615132624222020252422202423211918161514121210111010
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization3.23.83.64.03.73.72.34.74.54.34.24.25.45.55.25.06.16.25.95.55.55.04.74.13.73.93.44.03.84.0

us-gaap:OtherIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value554332554434665434433333333322222
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization1.01.00.90.70.70.50.90.90.80.80.60.81.31.41.21.00.81.11.10.90.90.90.90.90.91.01.01.10.80.80.00.01.0

us-gaap:FiniteLivedIntangibleAssetsGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value149315181492152215221454163216461678167912771297128612791308131110749449499609449551038110611191122112511108949091852
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ndaq:ForeignCurrencyTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value-202-159-187-160-160-149-143-144-112-111-108-126-153-160-131-128-112-138-132-121-138-94-51-12234-14-16-1-26-25
Percentage of FiniteLivedIntangibleAssetsGross-13.5-10.5-12.5-10.5-10.5-10.2-8.8-8.7-6.7-6.6-8.5-9.7-11.9-12.5-10.0-9.8-10.4-14.6-13.9-12.6-14.6-9.8-4.9-1.10.20.30.4-1.3-0.10.70.00.0-1.3

us-gaap:CustomerRelationships



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1599159615991599159915321708170817081708133013871394139413941394114310381038103810381009104710751075107510751075864871867865854
Percentage of FiniteLivedIntangibleAssetsGross107.1105.1107.2105.1105.1105.4104.7103.8101.8101.7104.2106.9108.4109.0106.6106.3106.4110.0109.4108.1110.0105.7100.997.296.195.895.696.896.695.80.00.046.1

us-gaap:DevelopedTechnologyRights



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value776362656554506565655131383838383839383839353737373940432526
Percentage of FiniteLivedIntangibleAssetsGross5.24.24.24.34.33.73.13.93.93.94.02.43.03.02.92.93.54.14.04.04.13.73.63.33.33.53.63.92.82.9

us-gaap:OtherIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1918181818171717171745777755555556556666666
Percentage of FiniteLivedIntangibleAssetsGross1.31.21.21.21.21.21.01.01.01.00.30.40.50.50.50.50.50.50.50.50.50.50.50.50.40.40.50.50.70.70.00.00.3

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1210123212131235123512551258125512871295129512821256125118551860140313861389139413761444149315451567157115751546987992
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

ndaq:ExchangeAndClearingRegistrations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1257125712571257125712571257125712571257125712571257125712571257790790790790790790790790790790790790790790790790790790790790790
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill103.9102.0103.6101.8101.8100.299.9100.297.797.197.198.0100.1100.567.867.656.357.056.956.757.454.752.951.150.450.350.251.180.079.60.00.00.00.00.00.00.0

ndaq:ForeignCurrencyTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-312011-09-302011-06-302010-12-31
Value-220-198-217-195-196-176-178-181-151-143-141-156-182-188-162-157-138-155-152-147-210-153-104-52-30-26-26-55-37-34-46-74-73-13-56
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill-18.2-16.1-17.9-15.8-15.9-14.0-14.1-14.4-11.7-11.0-10.9-12.2-14.5-15.0-8.7-8.4-9.8-11.2-10.9-10.5-15.3-10.6-7.0-3.4-1.9-1.7-1.7-3.6-3.7-3.40.00.00.00.00.0

us-gaap:LicensingAgreements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value5252525252525252525252525252525151515151515151515151515152787878787878
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill4.34.24.34.24.24.14.14.14.04.04.04.14.14.22.83.73.73.73.73.53.43.33.33.23.23.35.25.10.00.00.00.00.00.00.0

us-gaap:TradeNames



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value121121121121122122127127129129127129129130708708700700700700745756756756756756760760183185184184181181181181181
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill10.09.810.09.89.99.710.110.110.010.09.810.110.310.438.238.149.950.550.450.254.152.450.648.948.248.148.349.218.518.60.00.00.00.00.00.00.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2703275027052757275727092890290129652974257225792542253031633171247723302338235423202399
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCredit

ndaq:CommercialPaperAndLetterOfCredit, ndaq:ClearinghouseCreditFacilities



Period End2020-03-312019-12-312018-12-31
Value0150
Percentage of LineOfCredit0.0100.00.0

us-gaap:ShortTermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

ndaq:OneBillionFiveYearRevolvingCreditFacility



Period End2020-03-31
Value1000
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

ndaq:CommercialPaperAndLetterOfCredit, ndaq:ClearinghouseCreditFacilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value193203198211210220187
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

ndaq:OneBillionFiveYearRevolvingCreditFacility, us-gaap:RevolvingCreditFacility



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value20060845953145972310001000
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity103.6299.5231.8251.7218.6328.60.00.0

us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:RevolvingCreditFacility, us-gaap:SubsequentEvent



Period End2020-04-30
Value700
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity0.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsNonrecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4100360037003700370039004000400043004400400038003800
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value254291201259220268202313224235207300220245238255259201193264194174169203197162190170218223157196215279294320283253343310308
Percentage of MarketableSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:LegalEntity

ndaq:NasdaqClearingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value141147140152151121128108112114113118115133
Percentage of MarketableSecuritiesCurrent55.550.569.758.768.645.163.434.550.048.554.639.352.354.3

us-gaap:OperatingLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-30
Value58616061
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value3103313273430
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.00.0

us-gaap:PreferredStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value0000000001111111111111111
Percentage of PreferredStockSharesIssued0.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockSharesOutstanding



Period End2020-03-312019-12-312019-03-312018-12-312014-12-312014-09-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value00000000000000000000001
Percentage of PreferredStockSharesOutstanding0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0

us-gaap:RestrictedCashCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value293029306741523422
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringAndRelatedCostExpectedCost1

srt:Maximum, ndaq:AssetImpairment



Period End2020-03-312019-12-312019-09-30
Value1008075
Percentage of RestructuringAndRelatedCostExpectedCost1100.0100.0100.0

srt:Minimum, ndaq:AssetImpairment



Period End2020-03-312019-12-312019-09-30
Value907065
Percentage of RestructuringAndRelatedCostExpectedCost190.087.586.7

us-gaap:StatementBusinessSegments

us-gaap:RevenueRemainingPerformanceObligation

ndaq:MarketTechnology



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2453207815023125563125
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312010-12-31
Value1111111111122222333333333332
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value327530.0317251.0458154.0464665.0345273.0314231.0435671.0435450.0450180.0333004.0524049.0529181.0378766.0423967.0558040.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber29.421.329.529.431.919.827.626.624.816.727.420.614.812.717.5

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value000000000111111
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber48.153.651.450.546.252.953.151.346.150.852.939.551.343.151.8

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312010-12-31
Value80.7977.3877.2377.073.1268.6268.268.1567.1657.3456.3350.8450.4545.9245.7345.2239.6135.3635.2335.1433.7430.9930.9430.9525.9623.223.122.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:PlanName

us-gaap:PerformanceShares, ndaq:OneYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value81.2480.8777.8877.8275.3874.0167.3567.367.261.3957.1357.252.5541.3424.17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.6104.5100.8101.1103.1107.998.898.8100.1107.1101.4112.5114.4116.978.0

us-gaap:PerformanceShares, ndaq:ThreeYearPerformanceShareUnitProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-312014-12-31
Value106.4398.3198.3198.3198.796.5796.5596.5596.4778.1878.1878.263.1849.4135.57
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue131.7127.0127.3127.7135.0140.7141.6141.7143.6136.3138.8153.8137.6139.7114.8

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value0000000000001112222233443334555555556
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value56.9450.549.7648.8745.2537.5136.5535.9834.2823.5523.7723.9822.3522.3223.7225.9427.8727.7927.8727.6927.026.3125.7225.0624.8820.9315.4715.1515.113.8513.613.4610.9912.65
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value13201817171518212219211965636977988072607268575352735057834566648778718789
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermBorrowings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value114639153946712398758087689604801544940
Percentage of ShortTermBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ShortTermDebtType

ndaq:OneBillionFiveYearRevolvingCreditFacility



Period End2020-03-312019-12-31
Value-7972
Percentage of ShortTermBorrowings-69.50.5

us-gaap:CommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3493915394675402753092694624801544940
Percentage of ShortTermBorrowings30.5100.0100.0100.043.631.438.235.048.1100.0100.0100.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-312007-12-31
Value5398563953275551549454495602554257255887543056095546571655455794611862076240618460565863520352095136497051614986499651605037472950784693494443032207
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1909-1686-1833-1666-1645-1530-1184-1191-1060-862-979-864-682-67-185-350-272-406-619-5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-35.4-29.9-34.4-30.0-29.9-28.1-21.1-21.5-18.5-14.6-18.0-15.4-11.8-1.1-3.6-7.0-5.8-8.2-14.4-0.2

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value25272632258527132732271626762712292630243104301132224278377137933780373635691189
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest46.846.748.548.949.749.847.848.951.151.457.253.755.669.272.476.179.975.682.953.9

us-gaap:CommonStock



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value222222222222222221
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest



Period End2020-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value200010110111217
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.20.20.20.4

us-gaap:Parent



Period End2020-03-312019-03-31
Value53965494
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value51405027490148294732455843994309414639703479357132922976267823912004161013441030
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest95.289.192.087.086.183.678.577.872.467.464.163.756.848.151.448.042.432.631.246.7

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-364-336-328-327-327-297-291-290-289-247-176-111-41-1005-1058-860-796-10-10-8
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-6.7-6.0-6.2-5.9-6.0-5.5-5.2-5.2-5.0-4.2-3.2-2.0-0.7-16.3-20.3-17.2-16.8-0.2-0.2-0.4

us-gaap:TradingSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value254291201251220259202300214221207277203228238242249189193237181171169186192162145133195201
Percentage of TradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value160169166180194166174153160
Percentage of TradingSecurities63.058.182.671.788.264.186.151.072.4

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:TradingSecuritiesDebt

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312018-12-31
Value149157134
Percentage of TradingSecuritiesDebt100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312018-12-31
Value105134125
Percentage of TradingSecuritiesDebt70.585.493.3

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, ndaq:EuropeanGovernmentDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value149157134
Percentage of TradingSecuritiesDebt100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, ndaq:StateOwnedEnterprisesAndMunicipalitiesDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value352414
Percentage of TradingSecuritiesDebt23.515.310.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, ndaq:SwedishMortgageBonds



Period End2020-03-312019-12-312018-12-31
Value181940
Percentage of TradingSecuritiesDebt12.112.129.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:BankTimeDeposits



Period End2020-03-312019-12-312018-12-31
Value05730
Percentage of TradingSecuritiesDebt0.036.322.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value523441
Percentage of TradingSecuritiesDebt34.921.730.6

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312018-12-31
Value254291259
Percentage of TradingSecuritiesDebt170.5185.4193.3

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, ndaq:EuropeanGovernmentDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value149157134
Percentage of TradingSecuritiesDebt100.0100.0100.0

us-gaap:FairValueMeasurementsRecurring, ndaq:StateOwnedEnterprisesAndMunicipalitiesDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value352414
Percentage of TradingSecuritiesDebt23.515.310.4

us-gaap:FairValueMeasurementsRecurring, ndaq:SwedishMortgageBonds



Period End2020-03-312019-12-312018-12-31
Value181940
Percentage of TradingSecuritiesDebt12.112.129.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:BankTimeDeposits



Period End2020-03-312019-12-312018-12-31
Value05730
Percentage of TradingSecuritiesDebt0.036.322.4

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312018-12-31
Value523441
Percentage of TradingSecuritiesDebt34.921.730.6

us-gaap:TreasuryStockShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value65555555544443333222214848454546464747484641393636373715100
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems


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


us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService


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


us-gaap:Goodwill us-gaap:StatementBusinessSegments


us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass


us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument


us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType