HXL


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense
us-gaap:DebtInstrument
us-gaap:InterestExpenseDebt

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:ProfitLoss

us-gaap:ResearchAndDevelopmentExpense

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

us-gaap:SellingGeneralAndAdministrativeExpense

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

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets
us-gaap:StatementBusinessSegments

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

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

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:IntangibleAssetsNetIncludingGoodwill
us-gaap:StatementBusinessSegments

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebtNoncurrent
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DeferredFinanceCostsNoncurrentNet
us-gaap:DebtInstrument

us-gaap:DeferredIncomeTaxLiabilitiesNet

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

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:StockholdersEquity
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

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

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock

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

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

hxl:ChangeInUnbilledRevenueEarnedOverTime
us-gaap:StatementBusinessSegments
us-gaap:Range, us-gaap:DebtInstrument
hxl:DebtInstrumentCovenantInterestCoverageRatio
us-gaap:Range, us-gaap:DebtInstrument
hxl:DebtInstrumentsCovenantLeverageRatio
us-gaap:Range, us-gaap:StatementScenario, us-gaap:DebtInstrument
us-gaap:Range, us-gaap:DebtInstrument
hxl:DebtInstrumentsCovenantLeverageRatioUnderCertainAcquisitions

hxl:DiscreteTaxBenefitFromRevaluationOfDeferredTaxLiabilities

hxl:DiscreteTaxExpenseBenefitFromRevaluationOfDeferredTaxLiabilities

hxl:GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments
us-gaap:StatementBusinessSegments

hxl:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments

hxl:MergerAndRestructuringExpensesNetOfPayments

hxl:NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
dei:EntityAddressesAddressType, us-gaap:Range, us-gaap:StatementGeographical
hxl:PercentageOfContributionToWasteTonnage
us-gaap:DebtInstrument, us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument
hxl:PercentageOfReductionInInterestRateOnSeniorNotes
us-gaap:DebtInstrument
hxl:ProceedsFromIssueOfSeniorNotesInSettlementOfDerivatives

hxl:ProceedsFromPaymentsToStockPlans

hxl:RepaymentOfFinanceLeaseObligationAndOtherDebtNet

hxl:RestructuringReserveSettledAndReceivedWithoutCash
us-gaap:RestructuringCostAndReserve

hxl:ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations
us-gaap:StatementEquityComponents

hxl:StandardProductWarrantyAccrualPeriodDecreaseExcludingWarrantiesIssued

hxl:StandardProductWarrantyExpenseBenefit

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AssetImpairmentCharges

us-gaap:DeferredIncomeTaxesAndTaxCredits
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
us-gaap:AwardType
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityInterestRateDuringPeriod
us-gaap:RetirementPlanType
us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:Range, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
us-gaap:StatementEquityComponents
us-gaap:Range, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherOperatingIncomeExpenseNet
dei:LegalEntity, us-gaap:RestructuringCostAndReserve
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve
us-gaap:DebtInstrument
us-gaap:PaymentsOfDebtIssuanceCosts
us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:ProceedsFromLongTermLinesOfCredit
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:DebtInstrumentRedemptionPeriod
us-gaap:RepaymentsOfUnsecuredDebt

us-gaap:RestructuringCharges
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveTranslationAdjustment
us-gaap:RestructuringCostAndReserve

hxl:AccrualForEnvironmentalLossContingenciesHighEndOfRange

hxl:DeferredTaxAssetsInventoryReserves

hxl:DeferredTaxAssetsOtherComprehensiveIncome
us-gaap:Range, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
hxl:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
hxl:DefinedBenefitPlanEstimatedFutureBenefitPayments
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
hxl:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsExcessAccumulatedBenefitObligations
us-gaap:DerivativeInstrumentRisk
hxl:DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
hxl:DerivativeAssetsPrepaidExpensesAndOtherNonCurrentAssets
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
hxl:DerivativeInstrumentPrincipalAmortizationInNextTwelveMonths
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
hxl:DerivativeInstrumentPrincipalAmortizationInYearFive
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
hxl:DerivativeInstrumentPrincipalAmortizationInYearFour
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
hxl:DerivativeInstrumentPrincipalAmortizationInYearThree
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
hxl:DerivativeInstrumentPrincipalAmortizationInYearTwo

hxl:FinanceLeaseObligationsNoncurrentAndOtherLongTermDebt

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetTaxExpenseBenefitAmount

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsTaxAmount

hxl:MultiemployerPlanExpectedContributionsInNextFiscalYear

hxl:NetDeferredFinancingCostsNonCurrentContraLiability

hxl:StockholdersEquityIncludingTreasuryStockValue

us-gaap:AccrualForEnvironmentalLossContingencies
dei:EntityAddressesAddressType, us-gaap:StatementGeographical
us-gaap:LossContingenciesByNatureOfContingency

us-gaap:AccruedEnvironmentalLossContingenciesCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:BusinessAcquisition, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized

us-gaap:ContractWithCustomerAssetNet
us-gaap:StatementBusinessSegments

us-gaap:ContractWithCustomerAssetNetCurrent
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument
us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DeferredFinanceCostsCurrentNet
us-gaap:DebtInstrument
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:Range, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeAmountOfHedgedItem
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssetsCurrent
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
dei:LegalEntity
us-gaap:EquityMethodInvestmentOwnershipPercentage

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:LongTermDebtFairValue

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwardsValuationAllowance
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
us-gaap:RetirementPlanType

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:StandardProductWarrantyAccrual

us-gaap:TreasuryStockShares

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Liability
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Long Term Debt Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Income Loss
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
InventoryNet
Inventory Work In Process Net Of Reserves
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ██████████████████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.0NANANA
us-gaap:CommonStockSharesIssued ████████▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▂▂▂▁▁110.0109.9109.7109.6109.6109.5109.3109.3109.0108.8108.5108.5108.4108.3107.8107.5107.5107.3106.7106.6106.5106.4106.0106.0105.9105.8104.8104.7104.7104.5104.0103.9103.8103.5102.4102.2102.2102.0101.0100.4100.3100.099.5NANANA
us-gaap:CommonStockSharesOutstanding NANA83.6NANANA83.6NANANA84.8NANANA89.6NANANA91.4NANANA93.5NANANA95.5NANANA98.9NANANA99.9NANANA98.8NANANA99.5NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁84.784.0NA84.083.784.3NA86.186.286.0NA88.189.991.2NA91.492.092.9NA94.194.694.8NA97.398.297.9NA97.799.2100.6NA101.7101.8102.1NA102.1102.0101.7NA101.1100.7100.4NA100.099.799.0
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁84.184.0NA83.883.783.7NA85.185.285.0NA87.088.890.0NA90.190.791.4NA92.793.193.4NA95.896.696.2NA95.897.398.5NA99.7100.0100.4NA100.3100.299.8NA99.098.698.2NA97.797.597.3
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.71.1NA1.51.60.6NA0.10.10.3NA0.20.10.2NA0.10.10.2NA0.40.40.6NA0.10.10.2NA0.20.20.2NA0.00.30.8NA0.50.50.5NA0.31.11.0NA0.80.9NA
us-gaap:EarningsPerShareBasic NANA-0.230.12-0.010.510.870.940.950.850.780.920.770.680.970.770.680.710.650.740.710.60.570.560.640.710.550.580.520.510.470.490.490.430.370.40.480.40.40.330.380.270.230.160.240.16
us-gaap:EarningsPerShareDiluted NANA-0.230.12-0.010.50.860.930.940.840.760.910.760.680.960.760.670.70.640.720.70.590.560.550.630.70.540.570.510.50.460.480.480.430.360.390.470.390.390.320.370.260.230.160.230.16
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▃▁▁▃▂▅▇██▇▇█▇▆█▇▆▆▆▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▄▅▅▅▅▄▅▄3e-08-1.7000000000000001e-07-2.3e-071.2e-07-1e-085.1e-078.699999999999996e-079.399999999999999e-079.499999999999999e-078.5e-077.799999999999998e-079.200000000000001e-077.7e-076.800000000000001e-079.699999999999998e-077.7e-076.800000000000001e-077.1e-076.499999999999999e-077.4e-077.1e-076e-075.7e-075.6e-076.4e-077.1e-075.5e-075.8e-075.2e-075.1e-074.6999999999999995e-074.9e-074.9e-074.3e-073.699999999999999e-074.0000000000000003e-074.8e-074.0000000000000003e-074.0000000000000014e-073.3e-073.8e-072.7e-07NANANANA
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▃▁▁▃▂▅▇██▇▇█▇▆█▇▆▆▆▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▄▅▅▅▅▄▅▄3e-08-1.7000000000000001e-07-2.3e-071.2e-07-1e-085e-078.599999999999999e-079.300000000000001e-079.399999999999999e-078.4e-077.599999999999998e-079.100000000000001e-077.6e-076.800000000000001e-079.6e-077.6e-076.7e-077e-076.400000000000001e-077.2e-077e-075.9e-075.6e-075.5e-076.3e-077e-075.4e-075.699999999999999e-075.1e-075e-074.600000000000002e-074.8e-074.8e-074.3e-073.600000000000001e-073.9e-074.6999999999999995e-073.9e-074.0000000000000014e-073.2e-073.7e-072.6e-07NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hxl:CompositeMaterials█▁255.5250.4NA223.5321.6463.3NA471.3505.5506.9NA450.0466.1463.8NA415.3412.4404.6NA414.4444.2413.9NA363.3373.5367.4360.1342.9NANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hxl:EngineeredProducts█▁80.273.7NA71.972.9103.0NA124.5125.0122.3NA107.7101.795.5NA92.694.091.3NA102.397.3101.9NA101.4102.2104.4111.7109.0NANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▃▂▂▁▃▆▇██▇▇▇▇▇▇▇▇▆▇▇▇▇▆▆▇▇▆▆▆▆▆▆▆▆▅▅▆▆▅▅▅▅▄16.2-10.2-20.4-37.66.465.797.4109.9115.1102.895.896.596.582.493.289.189.778.687.089.1100.183.981.278.090.682.677.179.075.174.667.069.071.963.054.360.073.960.649.446.049.447.231.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▃▁▃▅▃▃█▄▆▅▄▆▂▇▇▇█▆▃▆▄▆▄▅▆▃▃▃▅▅▆▆▅▃▄▅▄▅▃▃▄▅7.7-33.16.262.516.35.8115.637.376.766.339.779.3-4.297.2100.3105.5126.780.917.969.935.176.437.055.088.22.818.411.450.049.275.373.958.323.041.451.525.354.08.98.643.150.2NANANANA
us-gaap:CostOfGoodsAndServicesSold ▁▁▁▂▄▆▇▇██▇▆▆▆▅▅▅258.4257.2265.4273.4323.8400.1417.8414.6440.2442.7410.6397.5402.7397.5369.5355.9351.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ▃▃▂▁▃▇▇███▇▇▇▇▇▇▇▆▇▇▇▇▆▆▇▇▆▆▆▆▅▅▆▅▅▅▅▅▄▄▄▄▃▄▄▃61.953.130.413.554.9140.9146.5157.9168.8167.2150.4143.0144.8142.6142.2135.6139.9134.1135.6135.7150.3143.0127.8124.1139.1141.8128.5122.0129.1129.2113.1112.1116.8112.095.699.2105.5106.485.686.587.083.067.670.578.466.1
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▄▂▂▁▃▆▇██▇▇▇▇▇▇▇▇▇▇▇█▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▅▅▅▅▄▄▅▄6.9-20.5-29.8-47.3-4.353.786.898.9103.290.885.485.987.874.485.882.182.972.481.783.694.078.376.073.488.180.775.076.473.172.865.467.168.861.352.557.869.857.647.143.846.538.126.822.433.417.2
us-gaap:IncomeTaxExpenseBenefit ▆▅▅▁▅▇▇▇█▇▇▆▇▇▆▇▇▆█▇██▇▇█▇▇▇██▇▇▇▇▇▇▇▇▆▇▆▇▆▆▇▆4.0-7.5-12.3-56.9-3.611.814.418.223.620.620.67.820.014.1-1.813.622.18.622.816.128.722.722.420.727.012.922.421.222.922.818.818.720.617.915.618.022.118.48.112.09.312.24.06.810.61.5
us-gaap:InterestExpense ▆▇▆▆▇█▇▇██▇▇▆▅▅▅▄▄▃▄▄▄▃▃▂▁▁▁▁▁▁▁▁▁▁▁▂▂▁▁▂▃9.310.39.49.710.712.010.611.011.912.010.410.68.78.07.47.06.86.25.35.55.75.65.24.62.51.92.12.12.01.81.61.92.11.71.82.23.03.02.32.22.94.2NANA7.16.6
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument hxl:AmendedSeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFourNA0.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss NANA-19.49.7-1.042.473.280.380.972.266.180.168.861.688.169.761.664.659.568.266.156.053.953.561.768.152.955.850.650.147.148.748.543.636.939.848.039.639.532.237.426.422.915.623.115.8
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▂▁▁▃▂▅▇▇█▇▇▇▇▆█▇▆▆▆▇▇▆▆▆▆▇▆▆▆▆▅▅▅▅▅▅▅▅▅▄▅▄▄▃2.2-14.0-19.49.7-1.042.473.280.380.972.266.180.168.861.688.169.761.664.659.568.266.156.053.953.561.768.152.955.850.650.147.148.748.543.636.939.848.039.639.532.237.426.422.915.6NANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted █▁2.2-14.0NA9.7-1.042.4NA80.380.972.2NA80.168.861.6NA69.761.664.6NA68.266.156.0NA53.561.768.1NA55.850.6NANANANANANANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▃▂▂▁▃▆▇██▇▇▇▇▇▇▇▇▆▇▇▇▇▆▆▇▇▆▆▆▆▆▆▆▆▅▅▆▆▅▅▅▅▄▄▅▄16.2-10.2-20.4-37.66.465.797.4109.9115.1102.895.896.596.582.493.289.189.778.687.089.1100.183.981.278.090.682.677.179.075.174.667.069.071.963.054.360.073.960.649.446.049.447.231.034.540.523.8
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▄▇▇▅▃▇▃▅▅▃▅▁▇▆▇█▅▂▅▃▅▄▅▆▁▃▂▅▅▅▆▅▄▆▅▄4.2-12.031.938.78.8-24.934.7-33.1-1.4-2.8-19.3-0.4-57.431.612.628.749.49.1-43.5-0.4-21.410.8-18.1-2.917.8-50.6-23.9-36.50.50.410.819.26.6-17.011.37.5-18.1NANANANANANANANANA
us-gaap:ProfitLoss ▃▁▁▃▂▅▇██▇▇█▇▇2.2-14.0-19.49.7-1.042.473.280.380.972.266.180.168.861.6NANANANANANANANANANANA68.1NA55.850.650.1NA48.748.543.6NA39.848.039.6NA32.237.426.4NANA23.115.8
us-gaap:ResearchAndDevelopmentExpense ▅▅▄▄▅▇▆▇▇██▇▆▇▆▅▅▆▅▅▅▅▄▄▄▆▆▃▄▇▄▄▃▄▃▂▂▃▂▂▂▂▁▁▂▁11.511.610.610.711.314.013.214.214.214.915.213.913.013.812.911.812.112.612.111.511.611.710.810.610.412.513.310.110.913.610.410.210.111.010.08.98.69.28.27.97.98.67.87.38.37.4
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▂▂▂▁▃▇▇▇██▇▇▇▇▆▆▆▅▅▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▂▂▂▂▁320.3310.3295.8286.9378.7541.0564.3572.5609.0609.9561.0540.5547.5540.1511.7491.5491.3478.8483.5500.5522.6497.7464.9448.8475.7471.8471.8451.9470.1461.7426.8412.3422.6416.5387.3391.6399.2400.1355.3351.8353.7331.6311.0294.5305.1263.0
us-gaap:SellingGeneralAndAdministrativeExpense ▃▅▁▁▁▇▄▄▅█▃▃▄▇▄▄▅▆▄▄▅▇▄▄▅▇▅▃▅▆▄▃▄▅▃▃▃▄▂▃▃▃▂▂▃▃31.139.625.924.624.146.535.933.839.549.531.732.635.346.436.134.738.142.936.535.138.647.435.835.538.146.738.132.937.141.035.732.934.838.031.330.332.536.628.029.929.732.928.828.729.631.4
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▆▆▆▇▇█▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁2917.42893.52917.82972.13222.53433.33128.63155.23195.13166.02824.12846.52836.12884.72780.92737.22627.32575.52400.62390.62369.62321.62187.42240.72200.12087.22036.41959.81947.41904.71836.11761.41695.01638.01603.11566.91517.31466.91376.11321.11319.41276.91258.1NANANA
us-gaap:Liabilities ▅▅▅▅▇█▆▇▇▇▆▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁1414.61406.61407.61472.71785.62012.21682.51737.41752.71793.61502.11479.21436.31322.21285.81310.51297.01312.81155.71131.21144.51104.11007.81045.4953.1921.7886.5832.6791.2739.7675.7641.6653.8627.6609.0618.0622.8602.6573.9531.8542.9557.9598.7NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▆▆▆▇▇█▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁2917.42893.52917.82972.13222.53433.33128.63155.23195.13166.02824.12846.52836.12884.72780.92737.22627.32575.52400.62390.62369.62321.62187.42240.72200.12087.22036.41959.81947.41904.71836.11761.41695.01638.01603.11566.91517.31466.91376.11321.11319.41276.91258.1NANANA
us-gaap:StockholdersEquity ▇▇█▇▇▇▇▇▇▆▆▆▇█▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▂▂▂▁▁1502.81486.91510.21499.41436.91421.11446.11417.81442.41372.41322.01367.31399.81562.51495.11426.71330.31262.71244.91259.41225.11217.51179.61195.31247.01165.51149.91127.21156.21165.01160.41119.81041.21010.4994.1948.9894.5864.3802.2789.3NANA659.4NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▃▂▁▂▆█▄▅▅▅▃▄▄▄▃▄▃▃▂▃▃▄▃▄▄▄▃▃▄▄▃▃▃▂▂▂▂▂▁▁▁▁▁619.3569.4535.9575.8849.61040.3704.9771.6798.1782.3675.8699.0707.8715.9656.7707.5648.4686.8607.0641.1684.6691.9633.8727.5752.0711.2681.7668.5693.8701.7656.4653.1626.3599.1575.7584.2591.6584.8524.3530.0522.4503.5497.7NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▃▂▃▂▆█▂▂▂▂▁▂▁▂▂▃▂▂▁▂▁▁▂▂▁▁▂▁▂▂▂▂▂▁▁▂▁▂▂▂▂▂▃▂▂▂115.382.0103.368.0257.2329.364.447.055.443.732.747.239.149.860.1119.145.582.135.245.738.924.251.843.235.322.770.937.743.850.065.559.756.718.332.643.232.648.749.548.455.950.6117.278.584.065.7
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▃▂▃▂▆█▂▁▂▁▁▁115.382.0103.368.0257.2329.364.447.055.443.732.747.2NANA60.1NANANA35.2NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▃▂▁▂▃▆▅▇██▆▆▇▇▅▅▆▆▅▆▇█▅▆▇▇▅▆▆▆▅▅▅▆▅▅▅▅▄▄▄▄▃168.7164.4125.4149.9191.6266.7227.6288.9313.3324.3260.9270.3287.2295.6248.7245.0253.3267.4245.6254.4290.3310.1234.0257.6283.7289.8233.5255.6281.5280.9232.4236.2246.1269.1229.0242.2250.4251.0199.3208.5207.8210.0173.9NANANA
us-gaap:InventoryNet ▃▃▃▅▇█▇█▇▇▆▆▆▆▆▆▆▆▆▇▇▇▆▇▇▆▆▆▅▅▅▄▄▄▃▃▄▃▃▃▂▂▁232.4217.4213.5262.9316.6354.4333.1352.2339.3334.5297.8308.7305.4300.8314.0313.4313.0303.6291.0315.1331.5333.1307.2326.2326.8314.4290.1300.7288.4283.9265.3260.3251.7245.9232.8235.7242.2232.0215.7213.3207.9198.7169.9NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▃▃▂▃▁▂▁▁▂▁▂▁▂▂▂▂▂▂▂▁▁▁▂██▆▆▅▆▆▇49.850.738.046.129.534.027.127.130.426.133.929.138.434.533.930.036.633.735.225.923.924.540.8100.5106.284.387.274.580.186.993.2NANANA81.3NANA53.159.859.850.8NA36.7NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NoncurrentAssets NANA2210.5NANANA2289.7NANANA2018.8NANANA2015.0NANANA1697.8NANANA1484.5NANANA1332.3NANANA1151.7NANANA972.2NANANA779.5NANANA654.5NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:ESNANA57.7NANANA57.2NANANA56.6NANANA61.7NANANA56.2NANANA59.8NANANA68.5NANANA73.2NANANA68.2NANANA60.5NANANA58.4NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:FRNANA398.5NANANA387.1NANANA397.7NANANA402.7NANANA217.2NANANA112.1NANANA68.7NANANA55.8NANANA37.9NANANA36.0NANANA36.3NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:GBNANA144.4NANANA151.9NANANA146.1NANANA151.6NANANA130.8NANANA133.4NANANA116.2NANANA92.6NANANA83.8NANANA68.4NANANA53.7NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA1523.3NANANA1609.2NANANA1332.1NANANA1304.4NANANA1213.8NANANA1109.9NANANA990.1NANANA854.6NANANA733.5NANANA568.2NANANA467.8NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical hxl:InternationalNANA687.2NANANA680.5NANANA686.7NANANA710.6NANANA484.0NANANA374.6NANANA342.2NANANA297.1NANANA238.7NANANA211.3NANANA186.7NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical hxl:OtherCountriesNANA86.6NANANA84.3NANANA86.3NANANA94.6NANANA79.8NANANA69.3NANANA88.8NANANA75.5NANANA48.8NANANA46.4NANANA38.3NANANA
us-gaap:PropertyPlantAndEquipmentGross █████████▇▇▇▇▇▇▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁3122.33109.83139.73103.33094.93071.53075.13014.53005.32894.52839.92839.82800.12815.12743.92662.32593.12476.42378.42341.22240.62197.42099.42056.01974.51891.91868.71808.31767.11701.81661.21574.91521.01480.01459.21391.01324.71271.61223.51170.31139.81106.01063.9NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ███▇▇▇▆▆▆▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁1321.31281.41265.51226.01193.11156.01132.31090.81083.4991.8963.4945.6920.5913.0877.6836.8807.6775.7752.8751.5717.7705.7673.8662.8646.8630.7630.5630.5627.2610.5593.8579.6560.2549.1544.8532.8516.2511.3501.4506.3502.4487.2465.6NANANA
us-gaap:AmortizationOfIntangibleAssets ▄▅█▁▂▅▁▇▅▄1.71.82.01.51.61.81.51.91.81.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ▇▇█████████████▇▇▇▆▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▁▁▁▁1801.01828.41874.21877.31901.81915.51942.81923.71921.91902.71876.51894.21879.61902.11866.31825.51785.51700.71625.61589.71522.91491.71425.61393.21327.71261.21238.21177.81139.91091.31067.4995.3960.8930.9914.4858.2808.5760.3722.1664.0637.4618.8598.3NANANA
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures ▄▅▅▅▅▅▅▅▆▆▅▅▅▆▅██▇▆▅▅▁▃▃▃▃▃▂▁▁▂▁▂▁▁▁▁▁▁▁▁▁▁43.444.444.745.745.047.946.545.851.850.948.745.944.651.047.767.163.962.853.148.348.420.930.433.133.932.034.224.323.222.123.322.323.322.622.621.922.822.421.721.921.620.719.9NANANA
us-gaap:Goodwill ▅▄█▁192.3191.9193.1190.9NANA189.8187.8189.6189.4107.7NANANA110.1NANANA66.6NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill NANA9.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁█80.982.5NA85.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA75.4NANANA81.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetIncludingGoodwill ██████████▄▄▄▄▄▂▁▁▁▂▂▂▁▁▁▁▁▁▁▁▁▁▁273.2274.4277.8276.6275.6276.6280.4279.4283.6286.2142.3144.6145.3150.2148.774.073.572.672.273.974.876.558.959.259.559.159.860.461.161.161.060.957.4NA57.8NANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA58.5NANANA66.567.567.261.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▇▇██▆▆▆▆▆▆▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁180.5176.9185.2196.7150.5153.0154.0134.7139.7143.980.862.858.865.561.563.156.052.642.737.638.940.638.727.727.023.722.528.829.418.517.715.813.313.817.216.914.915.617.617.618.322.122.4NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▃▃▂▁▂▆▇▇█▇▇▆▆▇▆▅▆▆▆▆▆▆▆▅▆▆█▅▅▅▅▄▄▅▄▄▅▄▆▄▄▄▂86.888.570.061.173.2151.9157.6164.5177.8165.2161.9143.1147.1154.8144.1128.6139.5141.7137.3149.3140.4142.6148.9134.2146.0140.1175.0131.2128.0131.8135.9108.3114.2125.2115.7104.3121.3119.2141.7113.9108.7107.883.0NANANA
us-gaap:AccruedLiabilitiesCurrent ▄▃▃▃▅▅▃▅▅▆▄▂▃▁▁▇▇▇▃▇▇▆██▇█▇▇█▇▇▇▅▅▅▆▅▄▅▅▆▄▅81.772.265.465.697.6106.763.4102.6105.3112.979.650.468.646.940.7125.0127.0128.963.5122.6130.4120.7143.7143.3134.9139.2134.3125.7136.8129.3129.8130.294.5106.7103.0108.1100.987.193.294.9109.189.395.3NANANA
us-gaap:LiabilitiesCurrent ▃▃▁▁▃▆▇███▇▅▅▅▄▄▅▅▅▅▅▄▅▅▅▅▆▄▅▄▅▄▂▄▃▃▄▃▄▃▃▂▂235.6219.9183.1175.5219.9309.9322.6347.0359.7349.9326.7270.9293.8270.8262.1257.8270.8274.8271.9276.6271.6264.2292.6277.5280.9279.5310.6259.7267.6263.9268.7243.3213.7247.3235.3229.5241.4220.8247.5220.7227.1208.5205.9NANANA
us-gaap:LongTermDebtCurrent ▁▁▁▁▁▁███████▄▄▄▄▄▄0.90.30.90.50.50.69.59.39.79.79.49.39.34.44.34.24.34.24.3NANANANANANA0.21.32.8NANA3.0NANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent NANA12.0NANANA12.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebtNoncurrent ▅▅▅▅▇█▆▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▁▁▁904.5912.0925.5998.71264.71389.51050.61115.21115.81160.0947.4980.7930.1835.6805.6829.6817.3837.0684.4670.2706.8688.0576.5596.4508.0480.0415.0430.0NANA292.0NANANANANANANANANANANANANANANA
us-gaap:DebtAndCapitalLeaseObligations ▁▁▁▂▆█▃▄905.4912.3926.4999.21265.21390.11060.11124.5NANA956.8NANANANANANANANANANANANANANANANANA397.8354.8295.0266.8314.0273.9256.6296.4299.9309.3250.9248.8251.4NA332.2NANANA
us-gaap:DeferredFinanceCostsNoncurrentNet NANA2.7NANANA3.7NANANA2.2NANANA3.1NANANA4.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFiveNANA1.7NANANA2.0NANANA2.4NANANA2.8NANANA3.2NANANA3.5NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySevenNANA3.4NANANA3.9NANANA4.4NANANA5.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFourNANA3.5NANANA3.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▂▁█143.1141.5153.0NANANA155.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▆▆▇█▇▇▇▁52.452.253.955.554.153.153.341.9NANA42.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▃▃▃███▃▇▇▇▆▆▅▅▅▇▇▆▅▆▅▅▃▅▅▅▄▅▄▄▃▄▄▄▂▄▃▃▁▃▃▃▁79.081.092.1243.0246.9259.7100.3233.3234.8241.6186.0184.9171.1173.0172.7223.1208.9201.0159.4184.4166.1151.9100.1171.5164.2162.2122.2142.9128.6123.873.9136.3131.1121.852.4109.2100.787.019.674.273.781.026.3NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent NANA46.5NANANA53.6NA56.450.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA10.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA8.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA7.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA5.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA23.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▇▇█▇▇▇▇▇▇▆▆▆▇█▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▂▂▂▁▁1502.81486.91510.21499.41436.91421.11446.11417.81442.41372.41322.01367.31399.81562.51495.11426.71330.31262.71244.91259.41225.11217.51179.61195.31247.01165.51149.91127.21156.21165.01160.41119.81041.21010.4994.1948.9894.5864.3802.2789.3NANA659.4NANANA
us-gaap:CommonStockValue ██████████████████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.01.0NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁869.7861.5849.7845.1844.6845.1829.9826.7817.9811.8798.3795.2792.0787.7774.3766.5763.1754.9738.8735.0730.2727.4715.8712.9709.7706.8678.5674.2671.3663.7642.3644.9640.1632.5617.0612.2609.2604.3589.2579.9573.7562.9552.3NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████████▇▇▇▇▆▆▆▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁1984.61982.41996.42015.82006.12007.11978.91920.01854.11786.01726.51673.31606.21548.71496.11419.11360.61309.11254.71205.21147.31091.41044.4999.9956.1904.0845.5792.6736.8686.2636.1589.0540.3491.8448.2411.3371.5323.5283.9244.4212.2174.8148.4NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▅▅▄▂▂▃▁▃▃▃▄▄▇▆▅▄▂▁▃▂▄▃▃▃▂▅▆███▇▆▆▆▆▆▇▆▇██▇-73.2-78.7-59.6-85.2-138.0-155.3-118.7-161.1-118.1-113.9-108.0-81.6-80.8-7.8-45.0-57.2-93.0-158.1-174.4-132.8-134.5-103.5-123.9-107.0-108.5-135.0-69.7-35.29.29.810.7-17.5-42.7-52.5-31.9-36.4-48.1-25.4-39.8-9.214.48.7-15.1NANANA
us-gaap:TreasuryStockValue ███████▇▇▇▇▇▆▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁1279.41279.41277.41277.41276.91276.91245.11168.91112.61112.61095.91020.7918.7767.2731.4702.8701.5644.3575.3549.1519.0498.9457.8411.6311.4311.4305.4305.4262.1195.7129.797.697.562.440.239.239.139.132.126.824.828.427.2NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▁▅▄▃▁█▅▅▃▆▅▄▃▅▅40.1-1.2107.383.465.08.6213.8120.1111.345.9143.0121.294.662.6120.2126.1NANANANANANANANANANANANANANANANANANANANANANANANA60.416.9NANA28.82.9
us-gaap:NetCashProvidedByUsedInInvestingActivities █████▇▇▆▇▁▇▇▇▆▄▆-4.3-4.9-2.8-7.4-13.2-27.2-41.4-63.4-43.0-219.5-36.6-49.0-42.4-59.5-120.8-54.1NANANANANANANANANANANANANANANANANANANANANANANANA-31.9-35.9NANA-7.5-12.6
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃▁▃█▂▄▄▇▃▄▄▄▄▄-3.100000000000002-13.5-71.6-267.8-123.9284.8-156.2-63.4-56.7184.9-120.5-63.5-57.8-15.5-59.3-1.8NANANANANANANANANANANANANANANANANANANANANANANANA-24.1-52.9NANA2.2-30.1
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▄▄▁▃█▄▄▄▄▄33.3-21.335.3-189.2-72.1264.917.4-8.411.711.0-14.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DepreciationDepletionAndAmortization ▇▇▇▇▇▇▇▇▇█▆▆▆▆▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▁▂▂▂▂▂▁▁▁▂▁▁▁▁34.234.534.935.634.935.534.634.434.038.732.331.229.829.828.226.825.124.424.323.523.322.219.919.318.918.318.617.817.717.116.514.713.814.314.214.714.314.013.713.713.814.113.913.713.612.0
us-gaap:IncreaseDecreaseInAccountsReceivable ▅▇▃▂▁▇▁▄▄▇▄▄▅▇▅▄▄▆▅▃▄█▄▃▄█▄▄▅▇▄▄▃▇▁▄▅▇▄▅▄▆▄▄▆▅3.942.0-29.0-46.7-76.342.0-66.0-18.5-11.459.4-7.0-15.72.241.2-0.5-17.3-21.919.50.6-36.6-15.468.8-20.5-26.6-4.870.3-15.0-19.51.648.3-6.5-14.5-25.640.2-73.1-9.46.148.3-3.66.4-4.730.1-6.2-23.636.615.7
us-gaap:IncreaseDecreaseInInventories ▆▆▁▁▂▇▃▇▆█▅▆▆▆▅▅▅▆▄▄▅▇▄▅▆█▅▇▆▇▆▆▆▆▃▅▆▆▆▆▆▇▃▆▆▆14.27.6-55.2-59.6-41.026.4-26.420.54.032.3-6.93.514.014.6-9.0-4.90.710.9-15.8-17.61.920.7-21.2-2.310.637.9-5.821.05.318.33.24.94.116.2-35.9-8.015.213.57.010.37.224.3-25.813.615.313.6
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▆▅▇▆█▆▄▅▇▆▅▆▃▆▃▄▅▆▅▆▄▆▆▃█▇▇▇▅▅▄▆▆▅▁▆▆▇▆▆▄█▄█▆▆2.5-0.25.12.86.00.7-3.6-0.93.60.2-0.41.0-5.91.6-5.8-3.6-0.20.5-2.30.2-3.00.72.5-7.57.13.23.33.00.1-2.5-3.12.71.1-1.7-12.32.70.64.80.92.2-4.05.8-4.36.00.72.0
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▁▅▄▃▁█▅▅▃▆▅▄▃▅▅40.1-1.2107.383.465.08.6213.8120.1111.345.9143.0121.294.662.6120.2126.1NANANANANANANANANANANANANANANANANANANANANANANANA60.416.9NANA28.82.9
us-gaap:NetIncomeLoss NANA-19.49.7-1.042.473.280.380.972.266.180.168.861.688.169.761.664.659.568.266.156.053.953.561.768.152.955.850.650.147.148.748.543.636.939.848.039.639.532.237.426.422.915.623.115.8
us-gaap:ProfitLoss ▃▁▁▃▂▅▇██▇▇█▇▇2.2-14.0-19.49.7-1.042.473.280.380.972.266.180.168.861.6NANANANANANANANANANANA68.1NA55.850.650.1NA48.748.543.6NA39.848.039.6NA32.237.426.4NANA23.115.8
us-gaap:ShareBasedCompensation ▄▆▃▂▁█▃▃▃▇▃▃▃▆▃▃▃▆▃▂▃▆▃▂▃▇▃▃▃▆▄▃▃▆▃▃▃▅▃▃▃▅▃▃▃▄4.39.02.40.3-1.714.42.42.42.411.12.22.02.19.92.12.22.410.92.50.82.310.52.70.82.412.03.22.52.78.84.22.73.38.72.72.63.07.52.62.52.46.41.92.22.65.7
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █████▇▇▆▇▁▇▇▇▆▄▆-4.3-4.9-2.8-7.4-13.2-27.2-41.4-63.4-43.0-219.5-36.6-49.0-42.4-59.5-120.8-54.1NANANANANANANANANANANANANANANANANANANANANANANANA-31.9-35.9NANA-7.5-12.6
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▁▁▁▁▂▃▄▆▄▅▃▄▄▅▅▅▇▇█▆▆▇▅▇▆█▆▆▆▅▅▄▄▄▅▆▅▇▅▃▃▃▂▂▁▂4.34.92.87.413.227.241.463.438.261.133.948.342.459.556.852.183.785.596.175.870.685.456.083.071.395.065.775.264.255.061.841.143.948.154.864.561.582.958.531.731.935.917.611.17.512.6
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃▁▃█▂▄▄▇▃▄▄▄▄▄-3.100000000000002-13.5-71.6-267.8-123.9284.8-156.2-63.4-56.7184.9-120.5-63.5-57.8-15.5-59.3-1.8NANANANANANANANANANANANANANANANANANANANANANANANA-24.1-52.9NANA2.2-30.1
us-gaap:PaymentsOfDividendsCommonStock NANA0.00.00.014.214.314.412.812.712.913.111.211.211.311.210.010.110.110.110.39.39.49.79.69.6NANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NANA0.00.00.024.676.155.70.011.274.9101.8150.930.128.31.257.163.726.230.020.034.946.1NANANA0.045.566.248.340.00.035.015.0NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value110109109109109109109109109108108108108108107107107107106106106106106106105105104104104104104103103103102102102102101100100100999898
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value838384899193959899989998
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value848484838486868688899191929294949497989797991001011011021021021011011001001009999
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value84848383838585858788909090919293939596969597989910010010010099999898979797
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value700000.01100000.01500000.01600000.0600000.0100000.0100000.0300000.0200000.0100000.0200000.0100000.0100000.0200000.0400000.0400000.0600000.0100000.0100000.0200000.0200000.0200000.0200000.00300000.0800000.0500000.0500000.0500000.0300000.01100000.01000000.0800000.0900000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.230.12-0.010.510.870.940.950.850.780.920.770.680.970.770.680.710.650.740.710.60.570.560.640.710.550.580.520.510.470.490.490.430.370.40.480.40.40.330.380.270.230.160.240.16
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.230.12-0.010.50.860.930.940.840.760.910.760.680.960.760.670.70.640.720.70.590.560.550.630.70.540.570.510.50.460.480.480.430.360.390.470.390.390.320.370.260.230.160.230.16
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.03-0.17-0.230.12-0.010.510.870.940.950.850.780.920.770.680.970.770.680.710.650.740.710.60.570.560.640.710.550.580.520.510.470.490.490.430.370.40.480.40.40.330.380.27
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.03-0.17-0.230.12-0.010.50.860.930.940.840.760.910.760.680.960.760.670.70.640.720.70.590.560.550.630.70.540.570.510.50.460.480.480.430.360.390.470.390.40.320.370.26
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value7.7-33.16.262165.81153776663979-4.29710010512680176935763755882.81811504975735823415125548.98.64350
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.4-10.72.121.84.31.120.56.512.610.97.114.7-0.818.019.621.525.816.93.714.06.715.48.012.318.50.63.92.510.610.717.617.913.85.510.713.26.313.52.52.412.215.1

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value258257265273323400417414440442410397402397369355351
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax80.782.989.795.385.574.074.072.472.372.673.273.573.673.672.272.471.5

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value615330135414014615716816715014314414214213513913413513515014312712413914112812212912911311211611295991051068586878367707866
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.317.110.34.714.526.026.027.627.727.426.826.526.426.427.827.628.528.028.027.128.828.727.527.729.230.127.227.027.528.026.527.227.626.924.725.326.426.624.124.624.625.021.723.925.725.1

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.9-20.5-29.8-47.3-4.353869810390858587748582827281839478767388807576737265676861525769574743463826223317
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.2-6.6-10.1-16.5-1.19.915.417.316.914.915.215.916.013.816.816.716.915.116.916.718.015.716.316.418.517.115.916.915.515.815.316.316.314.713.614.817.514.413.312.513.111.58.67.610.96.5

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.0-7.5-12.3-56.9-3.61114182320207.82014-1.813228.622162822222027122221222218182017151822188.1129.3124.06.8101.5
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-2.4-4.2-19.8-1.02.22.63.23.93.43.71.43.72.6-0.42.84.51.84.73.25.54.64.84.65.72.74.74.74.94.94.44.54.94.34.04.65.54.62.33.42.63.71.32.33.50.6

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value9.3109.49.710121011111210108.78.07.47.06.86.25.35.55.75.65.24.62.51.92.12.12.01.81.61.92.11.71.82.23.03.02.32.22.94.27.16.6
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.93.33.23.42.82.21.91.92.02.01.92.01.61.51.41.41.41.31.11.11.11.11.11.00.50.40.40.50.40.40.40.50.50.40.50.60.80.70.60.60.81.32.32.5

Interest Expense Debt

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument

us-gaap:InterestExpenseDebt

hxl:AmendedSeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Interest
Period End2021-03-31
Value900000.0
Percentage of InterestExpenseDebt100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:AmendedSeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour0.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-19.49.7-1.04273808072668068618869616459686656535361685255505047484843363948393932372622152315
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.63.4-0.37.813.014.013.311.811.814.812.611.417.214.212.513.512.313.612.611.311.611.913.014.411.212.310.810.911.011.811.510.59.510.212.09.911.19.210.68.07.45.37.66.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value2.2-14.0-19.49.7-1.0427380807266806861886961645968665653536168525550504748484336394839393237262215
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-4.5-6.63.4-0.37.813.014.013.311.811.814.812.611.417.214.212.513.512.313.612.611.311.611.913.014.411.212.310.810.911.011.811.510.59.510.212.09.911.19.210.68.07.45.3

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.2-14.09.7-1.042808072806861
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-4.53.4-0.37.814.013.311.814.812.611.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-30
Value2.2-14.09.7-1.0428080728068616961646866565361685550
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-4.53.4-0.37.814.013.311.814.812.611.414.212.513.513.612.611.311.913.014.412.310.8

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16-10.2-20.4-37.66.465971091151029596968293898978878910083817890827779757467697163546073604946494731344023
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.1-3.3-6.9-13.11.712.117.319.218.916.917.117.917.615.318.218.118.316.418.017.819.216.917.517.419.017.516.317.516.016.215.716.717.015.114.015.318.515.113.913.114.014.210.011.713.39.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-14.2-22.3-12.21.7-13.2-32.3-10.1-10.5-13.0-24.5-10.7-11.5-12.5-18.5-13.7-13.0-14.5-16.3-13.3-12.6-13.2-19.2
Percentage of OperatingIncomeLoss-87.7218.659.8-4.5-206.2-49.2-10.4-9.6-11.3-23.8-11.2-11.9-13.0-22.5-14.7-14.6-16.2-20.7-15.3-14.1-13.2-22.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.4-7.2-4.10.6-3.5-6.0-1.8-1.8-2.1-4.0-1.9-2.1-2.3-3.4-2.7-2.6-3.0-3.4-2.8-2.5-2.5-3.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:CorporateReconcilingItemsAndEliminations92.2161.60.0-20.083.5127.70.045.160.5126.90.066.961.696.40.079.396.095.30.077.869.8106.1

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

us-gaap:OperatingSegments, hxl:CompositeMaterials


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value247.4-14.3-36.62091861001111129792939195909281878810190817491897874
Percentage of OperatingIncomeLoss151.2-72.570.197.3314.1139.389.291.197.1109.4101.595.996.5110.4102.4101.0102.7104.2100.199.7101.5108.2100.695.0100.7108.0102.194.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.62.4-4.8-12.85.316.915.417.518.418.417.317.117.016.818.618.318.717.118.017.719.418.217.616.519.218.916.716.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hxl:CompositeMaterials9.63.00.0-16.46.219.70.021.222.122.20.020.620.019.60.021.722.320.20.021.422.921.90.020.424.424.30.021.7

us-gaap:OperatingSegments, hxl:EngineeredProducts


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5.94.76.1-2.7-0.56.5202016149.315159.91112121313121112121414141616
Percentage of OperatingIncomeLoss36.4-46.1-29.97.2-7.89.921.118.514.214.49.716.116.512.012.313.613.516.515.214.511.714.715.418.215.917.821.121.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.52.1-0.9-0.11.23.73.52.72.41.72.92.91.82.22.52.52.72.72.62.22.52.73.23.03.13.53.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hxl:EngineeredProducts7.46.40.0-3.8-0.76.30.016.313.012.10.014.415.610.40.013.112.914.20.012.612.012.10.014.014.114.10.015.3

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value4.2-12.031388.8-24.934-33.1-1.4-2.8-19.3-0.4-57.4311228499.1-43.5-0.4-21.410-18.1-2.917-50.6-23.9-36.50.50.410196.6-17.0117.5-18.1
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-3.910.813.52.3-4.66.1-5.8-0.2-0.5-3.4-0.1-10.55.92.55.810.11.9-9.0-0.1-4.12.2-3.9-0.63.7-10.7-5.1-8.10.10.12.54.71.6-4.12.91.9-4.5

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value2.2-14.0-19.49.7-1.0427380807266806861685550504848433948393237262315
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-4.5-6.63.4-0.37.813.014.013.311.811.814.812.611.414.412.310.810.911.811.510.510.212.09.99.210.68.07.66.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1111101011141314141415131313121112121211111110101012131010131010101110.08.98.69.28.27.97.98.67.87.38.37.4
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.73.63.73.02.62.32.52.32.42.72.62.42.62.52.42.52.62.52.32.22.42.32.42.22.62.82.22.32.92.42.52.42.62.62.32.22.32.32.22.22.62.52.52.72.8

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value320310295286378541564572609609561540547540511491491478483500522497464448475471471451470461426412422416387391399400355351353331311294305263
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-15.4-13.8-6.8-8.5-15.8-25.3-20.1-23.3-21.5-19.3-18.0-17.2-20.3-19.2-15.4-16.4-15.1-17.1-14.5-16.2-18.9-18.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.8-4.4-2.3-3.0-4.2-4.7-3.6-4.1-3.5-3.2-3.2-3.2-3.7-3.6-3.0-3.3-3.1-3.6-3.0-3.2-3.6-3.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.8-4.4-2.3-3.0-4.2-4.7-3.6-4.1-3.5-3.2-3.2-3.2-3.7-3.6-3.0-3.3-3.1-3.6-3.0-3.2-3.6-3.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:CorporateReconcilingItemsAndEliminations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:IntersegmentElimination, hxl:CompositeMaterials


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value14135.97.81524192321191717201915161517120-16.2-18.9-18.1126-15.919201316181816171816121414
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.64.32.02.74.14.63.44.13.53.13.23.23.73.62.93.33.13.625.0-3.2-3.6-3.627.2-3.54.24.32.93.63.94.03.84.14.34.03.13.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.64.32.02.74.14.63.44.13.53.13.23.23.73.62.93.33.13.625.0-3.2-3.6-3.627.2-3.54.24.32.93.63.94.03.84.14.34.03.13.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination hxl:CompositeMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntersegmentElimination, hxl:EngineeredProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value0.80.60.90.70.40.50.70.00.00.18.6-0.20.00.10.80.40.50.10.60.10.50.60.80.90.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.30.20.10.10.10.00.00.01.8-0.00.00.00.20.10.10.00.10.00.10.10.20.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.30.20.10.10.10.00.00.01.8-0.00.00.00.20.10.10.00.10.00.10.10.20.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination hxl:EngineeredProducts100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hxl:CompositeMaterials


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value255250223321463471505506450466463415412404414444413363373367360342361356324312324324298299316
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.880.777.984.985.682.383.083.183.385.185.984.583.984.582.885.083.280.978.577.976.375.976.977.276.175.876.878.077.076.679.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.880.777.984.985.682.383.083.183.385.185.984.583.984.582.885.083.280.978.577.976.375.976.977.276.175.876.878.077.076.679.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hxl:CompositeMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hxl:EngineeredProducts


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value807371721031241251221071019592949110297101101102104111109108105102999791899182
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.023.825.119.319.021.720.520.119.918.617.718.819.119.120.418.620.522.621.522.123.724.123.122.823.924.223.222.023.023.420.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.023.825.119.319.021.720.520.119.918.617.718.819.119.120.418.620.522.621.522.123.724.123.122.823.924.223.222.023.023.420.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hxl:EngineeredProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

hxl:CommercialAerospaceMarketApplications


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value153147126128203362379385416415385373383382361352349347
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.047.642.844.953.867.167.367.468.468.168.769.070.170.970.671.771.072.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.047.642.844.953.867.167.367.468.468.168.769.070.170.970.671.771.072.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:CommercialAerospaceMarketApplications100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:IndustrialMarketApplications


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value595149496666697680867777726754565454
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.616.416.717.217.512.312.313.413.314.213.914.213.212.510.611.411.111.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.616.416.717.217.512.312.313.413.314.213.914.213.212.510.611.411.111.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:IndustrialMarketApplications100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:SpaceAndDefenseMarketApplications


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1061111191081081111151091111079790919096828776
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.436.040.537.928.620.620.419.218.417.717.416.716.716.718.816.817.916.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.436.040.537.928.620.620.419.218.417.717.416.716.716.718.816.817.916.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:SpaceAndDefenseMarketApplications100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value240237225215306438443448484487447432445444413398397387390398425395370347393387307359379374273329342341253313331332236277290270210234250
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.276.476.275.280.981.178.678.379.580.079.780.181.482.380.881.280.980.980.879.681.479.579.777.482.782.265.179.580.881.264.080.081.182.065.480.283.183.066.678.782.281.567.779.682.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.276.476.275.280.981.178.678.379.580.079.780.181.482.380.881.280.980.980.879.681.479.579.777.482.782.265.179.580.881.264.080.081.182.065.480.283.183.066.678.782.281.567.779.682.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:CompositeMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:EngineeredProducts


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value797370717210212012412512211310710195989294919210297101941011021041101091091051009998928892828475897775706966
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.823.623.824.819.118.921.421.720.520.020.319.918.617.719.218.819.119.119.220.418.620.520.322.621.522.123.524.223.222.923.624.223.322.222.723.620.721.021.225.521.822.822.523.721.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.823.623.824.819.118.921.421.720.520.020.319.918.617.719.218.819.119.119.220.418.620.520.322.621.522.123.524.223.222.923.624.223.322.222.723.620.721.021.225.521.822.822.523.721.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hxl:EngineeredProducts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value31392524244635333949313235463634384236353847353538463832374135323438313032362829293228282931
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.712.88.88.66.48.66.45.96.58.15.76.06.48.67.17.17.89.07.57.07.49.57.77.98.09.98.17.37.98.98.48.08.29.18.17.78.19.17.98.58.49.99.39.79.711.9

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value29172893291729723222343331283155319531662824284628362884278027372627257524002390236923212187224022002087203619591947190418361761169516381603156615171466137613211319127612581246
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value61-6.249865256
Percentage of Assets2.1-0.21.73.12.22.6
Percentage of Assets2.1-0.21.73.12.22.6
Percentage of Assets hxl:CorporateReconcilingItemsAndEliminations100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, hxl:CompositeMaterials


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value23822669250124152127189216001479
Percentage of Assets81.685.388.686.988.686.578.680.6
Percentage of Assets81.685.388.686.988.686.578.680.6
Percentage of Assets us-gaap:OperatingSegments hxl:CompositeMaterials100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hxl:EngineeredProducts


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value473465272279220239241244
Percentage of Assets16.214.99.710.09.210.911.813.3
Percentage of Assets16.214.99.710.09.210.911.813.3
Percentage of Assets us-gaap:OperatingSegments hxl:EngineeredProducts100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value141414061407147217852012168217371752179315021479143613221285131012971312115511311144110410071045953921886832791739675641653627609618622602573531542557598671
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets48.548.648.249.655.458.653.855.154.956.753.252.050.645.846.247.949.451.048.147.348.347.646.146.743.344.243.542.540.638.836.836.438.638.338.039.441.041.141.740.341.143.747.653.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value29172893291729723222343331283155319531662824284628362884278027372627257524002390236923212187224022002087203619591947190418361761169516381603156615171466137613211319127612581246
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-312008-12-31
Value1502148615101499143614211446141714421372132213671399156214951426133012621244125912251217117911951247116511491127115611651160111910411010994948894864802789659575509
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.551.451.850.444.641.446.244.945.143.346.848.049.454.253.852.150.649.051.952.751.752.453.953.356.755.856.557.559.461.263.263.661.461.762.060.659.058.958.359.752.446.20.0

us-gaap:StockholdersEquity us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5.35.6100.8-12.3-18.7-8.4-23.7-13.8-11.4-10.6-2.7-3.1138.6-25.9
Percentage of StockholdersEquity0.40.40.70.1-0.9-1.3-0.6-1.7-1.0-0.8-0.8-0.2-0.20.90.6-2.1
Percentage of Assets0.20.20.40.0-0.4-0.5-0.3-0.8-0.4-0.4-0.4-0.1-0.10.50.3-1.1
Percentage of Assets us-gaap:ForeignExchangeForward us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-42.3-42.1-40.4-22.6-21.6-21.5-22.4-15.4-15.7-15.8-15.4-18.6-18.0-19.3-18.5-16.2-15.6-14.6
Percentage of StockholdersEquity-2.8-2.8-2.7-1.5-1.5-1.5-1.5-1.1-1.1-1.2-1.2-1.4-1.3-1.2-1.2-1.1-1.2-1.2
Percentage of Assets-1.4-1.5-1.4-0.8-0.7-0.6-0.7-0.5-0.5-0.5-0.5-0.7-0.6-0.7-0.7-0.6-0.6-0.6
Percentage of Assets hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312017-03-312016-12-312015-12-31
Value-40.4-22.4-15.4-18.5-14.8-14.6-22.7
Percentage of StockholdersEquity-2.7-1.5-1.2-1.2-1.2-1.2-1.9
Percentage of Assets-1.4-0.7-0.5-0.7-0.6-0.6-1.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1110154.1-11.0-19.6-6.9-21.6-11.4-8.5-5.84.54.314
Percentage of StockholdersEquity0.80.71.00.3-0.8-1.4-0.5-1.5-0.8-0.6-0.40.30.31.0
Percentage of Assets0.40.40.50.1-0.3-0.6-0.2-0.7-0.4-0.3-0.20.20.20.5
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-73.2-78.7-59.6-85.2-138.0-155.3-118.7-161.1-118.1-113.9-108.0-81.6-80.8-7.8-45.0-57.2-93.0-158.1-174.4-123.9-69.710-31.9-39.8-15.1-7.0-8.7
Percentage of StockholdersEquity-4.9-5.3-3.9-5.7-9.6-10.9-8.2-11.4-8.2-8.3-8.2-6.0-5.8-0.5-3.0-4.0-7.0-12.5-14.0-10.5-6.10.9-3.2-5.0-2.3-1.2-1.7
Percentage of Assets-2.5-2.7-2.0-2.9-4.3-4.5-3.8-5.1-3.7-3.6-3.8-2.9-2.8-0.3-1.6-2.1-3.5-6.1-7.3-5.7-3.40.6-2.0-2.9-1.2-0.60.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-42.6-46.8-34.8-66.7-105.4-114.2-89.4-124.1-91.0-89.6-86.8-67.5-67.1-9.7-41.3-53.9-82.6-132.0-141.1-86.6
Percentage of StockholdersEquity-2.8-3.1-2.3-4.4-7.3-8.0-6.2-8.8-6.3-6.5-6.6-4.9-4.8-0.6-2.8-3.8-6.2-10.5-11.3-7.3
Percentage of Assets-1.5-1.6-1.2-2.2-3.3-3.3-2.9-3.9-2.8-2.8-3.1-2.4-2.4-0.3-1.5-2.0-3.1-5.1-5.9-4.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value869861849845844845829826817811798795792787774738715678642617589552535526
Percentage of StockholdersEquity57.957.956.356.458.859.557.458.356.759.260.458.256.650.451.859.360.759.055.462.173.483.893.0103.3
Percentage of Assets29.829.829.128.426.224.626.526.225.625.628.327.927.927.327.830.832.733.335.038.542.843.942.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.01.01.01.01.01.01.0
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.10.10.10.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value198419821996201520062007197819201854178617261673160615481496125410448456364482831487114
Percentage of StockholdersEquity132.1133.3132.2134.4139.6141.2136.8135.4128.5130.1130.6122.4114.799.1100.1100.888.573.554.845.135.422.512.32.9
Percentage of Assets68.068.568.467.862.358.563.360.958.056.461.158.856.653.753.852.347.741.534.628.020.611.85.70.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-1279.4-1279.4-1277.4-1277.4-1276.9-1276.9-1245.1-1168.9-1112.6-1112.6-1095.9-1020.7-918.7-767.2-731.4-575.3-457.8-305.4-129.7-40.2-32.1-27.2-24.7-23.8
Percentage of StockholdersEquity-85.1-86.0-84.6-85.2-88.9-89.9-86.1-82.4-77.1-81.1-82.9-74.7-65.6-49.1-48.9-46.2-38.8-26.6-11.2-4.0-4.0-4.1-4.3-4.7
Percentage of Assets-43.9-44.2-43.8-43.0-39.6-37.2-39.8-37.0-34.8-35.1-38.8-35.9-32.4-26.6-26.3-24.0-20.9-15.0-7.1-2.5-2.3-2.2-2.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6195695355758491040704771798782675699707715656707648686607641684691633727752711681668693701656653626599575584591584524530522503497461
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.219.718.419.426.430.322.524.525.024.723.924.625.024.823.625.824.726.725.326.828.929.829.032.534.234.133.534.135.636.835.737.136.936.635.937.339.039.938.140.139.639.439.637.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value115821036825732964475543324739496011945823545382451433522703743506559561832433248494855501177884651105028
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.02.83.52.38.09.62.11.51.71.41.21.71.41.72.24.41.73.21.51.91.61.02.41.91.61.13.51.92.22.63.63.43.31.12.02.82.13.33.63.74.24.09.30.00.00.08.80.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value11582103682573296447554332476035
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.02.83.52.38.09.62.11.51.71.41.21.72.21.5

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value168164125149191266227288313324260270287295248245253267245254290310234257283289233255281280232236246269229242250251199208207210173158
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.85.74.35.05.97.87.39.29.810.29.29.510.110.28.99.09.610.410.210.612.313.410.711.512.913.911.513.014.514.712.713.414.516.414.315.516.517.114.515.815.716.413.812.7

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value232217213262316354333352339334297308305300314313313303291315331333307326326314290300288283265260251245232235242232215213207198169157
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.07.57.38.89.810.310.611.210.610.610.510.810.810.411.311.411.911.812.113.214.014.314.014.614.915.114.215.314.814.914.414.814.815.014.515.016.015.815.716.115.815.613.512.6

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312012-03-312011-12-312011-09-302011-06-302010-12-31
Value4950384629342727302633293834333036333525232440100106848774808693815359595036
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.81.31.60.91.00.90.91.00.81.21.01.41.21.21.11.41.31.51.11.01.11.94.54.84.04.33.84.14.65.15.13.64.34.53.92.9

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value22102289201820151697148413321151972779654658
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.873.271.572.570.767.965.462.760.656.652.052.8

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:ES


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value575756615659687368605869
Percentage of NoncurrentAssets2.62.52.83.13.34.05.16.47.07.88.910.5
Percentage of Assets2.01.82.02.22.32.73.44.04.34.44.65.5
Percentage of Assets country:ES0.00.00.00.00.00.00.00.00.00.00.00.0

country:FR


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value398387397402217112685537363640
Percentage of NoncurrentAssets18.016.919.720.012.87.65.24.83.94.65.56.1
Percentage of Assets13.712.414.114.59.05.13.43.02.42.62.93.2
Percentage of Assets country:FR0.00.00.00.00.00.00.00.00.00.00.00.0

country:GB


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1441511461511301331169283685348
Percentage of NoncurrentAssets6.56.67.27.57.79.08.78.08.68.88.27.3
Percentage of Assets4.94.95.25.55.46.15.75.05.25.04.33.9
Percentage of Assets country:GB0.00.00.00.00.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value152316091332130412131109990854733568467458
Percentage of NoncurrentAssets68.970.366.064.771.574.874.374.275.472.971.569.6
Percentage of Assets52.251.447.246.950.650.748.646.545.841.337.236.8
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.0

hxl:International


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value687680686710484374342297238211186200
Percentage of NoncurrentAssets31.129.734.035.328.525.225.725.824.627.128.530.4
Percentage of Assets23.621.824.325.620.217.116.816.214.915.414.816.0
Percentage of Assets hxl:International0.00.00.00.00.00.00.00.00.00.00.00.0

hxl:OtherCountries


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value868486947969887548463842
Percentage of NoncurrentAssets3.93.74.34.74.74.76.76.65.06.05.96.5
Percentage of Assets3.02.73.13.43.33.24.44.13.03.43.03.4
Percentage of Assets hxl:OtherCountries0.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value3122310931393103309430713075301430052894283928392800281527432662259324762378234122402197209920561974189118681808176717011661157415211480145913911324127112231170113911061063
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets107.0107.5107.6104.496.089.598.395.594.191.4100.699.898.797.698.797.398.796.299.197.994.694.796.091.889.790.691.892.390.789.390.589.489.790.491.088.887.386.788.988.686.486.684.6

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

hxl:AssetsHeldUnderFinanceLeases


Property
Period End2020-12-312019-12-312018-12-31
Value5.95.93.5
Percentage of PropertyPlantAndEquipmentGross0.20.20.1
Percentage of Assets0.20.20.1
Percentage of Assets hxl:AssetsHeldUnderFinanceLeases0.00.00.0

us-gaap:Building


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value686687660624523405386396298278253
Percentage of PropertyPlantAndEquipmentGross21.922.423.222.722.019.320.723.920.422.823.8
Percentage of Assets23.522.023.422.421.818.519.021.618.620.320.1
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value23124915132245454842325733517795
Percentage of PropertyPlantAndEquipmentGross7.48.15.311.719.126.122.715.523.014.59.0
Percentage of Assets7.98.05.411.618.925.120.814.020.912.97.6
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2108202619191698133610941008957783732680
Percentage of PropertyPlantAndEquipmentGross67.265.967.661.956.252.154.057.653.759.864.0
Percentage of Assets72.364.868.061.155.750.049.552.148.953.254.1
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1071051059663515050413534
Percentage of PropertyPlantAndEquipmentGross3.43.43.73.52.72.52.73.12.92.93.2
Percentage of Assets3.73.43.73.52.72.42.52.82.62.62.7
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value132112811265122611931156113210901083991963945920913877836807775752751717705673662646630630630627610593579560549544532516511501506502487465
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets45.344.343.441.337.033.736.234.633.931.334.133.232.531.631.630.630.730.131.431.430.330.430.829.629.430.231.032.232.232.132.332.933.133.534.034.034.034.936.438.338.138.237.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1700000.01800000.02000000.01500000.01600000.01800000.01500000.01900000.01800000.01700000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value500000.0500000.0700000.0300000.0400000.0500000.0400000.0500000.0600000.0500000.0
Percentage of AmortizationOfIntangibleAssets29.427.835.020.025.027.826.726.333.329.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets hxl:CompositeMaterials0.00.00.00.00.00.00.00.00.00.0

hxl:EngineeredProducts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1200000.01300000.01300000.01200000.01200000.01300000.01100000.01400000.01200000.01200000.0
Percentage of AmortizationOfIntangibleAssets70.672.265.080.075.072.273.373.766.770.6
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets hxl:EngineeredProducts0.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1801182818741877190119151942192319211902187618941879190218661825178517001625158915221491142513931327126112381177113910911067995960930914858808760722664637618598602
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets61.763.264.263.259.055.862.161.060.260.166.466.566.365.967.166.768.066.067.766.564.364.365.262.260.360.460.860.158.557.358.156.556.756.857.054.853.351.852.550.348.348.547.648.3

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4344444545474645515048454451476763625348482030333332342423222322232222212222212121201917
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.51.51.51.41.41.51.51.61.61.71.61.61.81.72.52.42.42.22.02.00.91.41.51.51.51.71.21.21.21.31.31.41.41.41.41.51.51.61.71.61.61.61.4

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Investments
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7.78.2142130
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures17.217.629.244.456.5
Percentage of Assets0.30.30.50.81.2
Percentage of Assets hxl:CorporateReconcilingItemsAndEliminations12.5-132.328.824.656.9

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hxl:CompositeMaterials


Investments
Period End2020-12-312019-12-312018-12-312015-12-312014-12-31
Value2.02.22.41010
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures4.54.74.933.229.8
Percentage of Assets0.10.10.10.50.5
Percentage of Assets us-gaap:OperatingSegments hxl:CompositeMaterials0.10.10.10.50.6

us-gaap:OperatingSegments, hxl:EngineeredProducts


Investments
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3536322623202423
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures78.377.665.955.643.566.870.2100.0
Percentage of Assets1.21.21.11.01.00.91.21.3
Percentage of Assets us-gaap:OperatingSegments hxl:EngineeredProducts7.47.811.89.510.58.510.09.5

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value19219119319018918718918910711066
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.66.66.66.46.16.05.96.03.84.02.8

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

hxl:ArcTechnologiesLlc, hxl:EngineeredProducts


Goodwillus-gaap:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value8282828282
Percentage of Goodwill42.543.343.743.343.7
Percentage of Assets2.82.62.62.62.6
Percentage of Assets hxl:ArcTechnologiesLlc hxl:EngineeredProducts0.00.00.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value77747476
Percentage of Goodwill40.239.269.269.8
Percentage of Assets2.72.42.62.8
Percentage of Assets hxl:CompositeMaterials0.00.00.00.0

hxl:EngineeredProducts


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1151153333
Percentage of Goodwill59.860.830.830.2
Percentage of Assets4.03.71.21.2
Percentage of Assets hxl:EngineeredProducts0.00.00.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2020-12-31
Value9300000.0
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0
Percentage of Assets0.3

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-09-30
Value808285
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0
Percentage of Assets2.82.92.9

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312019-12-31
Value7581
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0
Percentage of Assets2.62.6

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value27327427727627527628027928328614214414515014874737272737476585959595960616161605757
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.59.59.38.68.19.08.98.99.05.05.15.15.25.32.72.82.83.03.13.23.32.72.62.72.82.93.13.13.23.33.53.43.6

us-gaap:IntangibleAssetsNetIncludingGoodwill us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value969698969393969496969810010010510357575656575860424343434344454545444141
Percentage of IntangibleAssetsNetIncludingGoodwill35.435.235.534.734.133.934.333.634.233.869.069.469.370.269.778.278.177.877.778.378.679.172.773.073.172.873.173.573.873.673.873.772.172.1
Percentage of Assets3.33.33.43.22.92.73.13.03.03.13.53.53.63.73.72.12.22.22.32.42.52.62.01.92.02.12.12.32.32.42.52.52.42.6
Percentage of Assets hxl:CompositeMaterials0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.02.70.00.00.03.00.00.03.2

hxl:EngineeredProducts


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value176177179180181182184185186189444444444516161616161616161616161616161616161616
Percentage of IntangibleAssetsNetIncludingGoodwill64.664.864.565.365.966.165.766.465.866.231.030.630.729.830.321.821.922.222.321.721.420.927.327.026.927.226.926.526.226.426.226.327.927.9
Percentage of Assets6.16.16.16.15.65.35.95.95.86.01.61.61.61.61.60.60.60.60.70.70.70.70.70.70.70.80.80.80.80.80.90.90.91.0
Percentage of Assets hxl:EngineeredProducts0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.06.70.00.00.06.60.00.07.5

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value5866676761
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets2.02.12.12.11.9

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value18017618519615015315413413914380625865616356524237384038272723222829181715131317161415171718222223
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.26.16.36.64.74.54.94.34.44.52.92.22.12.32.22.32.12.01.81.61.61.71.81.21.21.11.11.51.51.01.00.90.80.81.11.11.01.11.31.31.41.71.81.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value86887061731511571641771651611431471541441281391411371491401421481341461401751311281311351081141251151041211191411131081078374
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.12.42.12.34.45.05.25.65.25.75.05.25.45.24.75.35.55.76.25.96.16.86.06.66.78.66.76.66.97.46.16.77.67.26.78.08.110.38.68.28.46.66.0

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value817265659710663102105112795068464012512712863122130120143143134139134125136129129130941061031081008793941098995
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.52.22.23.03.12.03.33.33.62.81.82.41.61.54.64.85.02.65.15.55.26.66.46.16.76.66.47.06.87.17.45.66.56.46.96.65.96.87.28.37.07.6

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value235219183175219309322347359349326270293270262257270274271276271264292277280279310259267263268243213247235229241220247220227208205201
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.17.66.35.96.89.010.311.011.311.111.69.510.49.49.49.410.310.711.311.611.511.413.412.412.813.415.313.313.713.914.613.812.615.114.714.615.915.118.016.717.216.316.416.2

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-03-312014-12-312014-09-302013-12-31
Value900000.0300000.0900000.0500000.0500000.0600000.09500000.09300000.09700000.09700000.09400000.09300000.09300000.04400000.04300000.04200000.04300000.04200000.04300000.0200000.01300000.02800000.03000000.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.30.30.30.30.30.30.30.20.20.20.20.20.20.00.10.10.2

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-12-312019-12-31
Value1212
Percentage of OperatingLeaseLiabilityCurrent100.0100.0
Percentage of Assets0.40.4

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value904912925998126413891050111511151160947980930835805829817837684670706688576596508480415430292
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.031.531.733.639.240.533.635.334.936.633.534.532.829.029.030.331.132.528.528.029.829.626.426.623.123.020.421.915.9

us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument

hxl:SeniorUnsecuredCreditFacility


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value207214228302568693313379378202
Percentage of LongTermDebtNoncurrent22.923.524.630.244.949.929.834.033.921.3
Percentage of Assets7.17.47.810.217.620.210.012.011.87.2
Percentage of Assets hxl:SeniorUnsecuredCreditFacility0.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel

hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour, us-gaap:FairValueInputsLevel2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value207214228302568693313379378
Percentage of LongTermDebtNoncurrent22.923.524.630.244.949.929.834.033.9
Percentage of Assets7.17.47.810.217.620.210.012.011.8
Percentage of Assets hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour us-gaap:FairValueInputsLevel20.00.00.00.00.00.00.00.00.0

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value9059129269991265139010601124956397354295266314273256296299309250248251332
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.031.531.733.639.340.533.935.633.920.418.616.115.118.516.716.018.919.821.118.218.819.126.4

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredFinanceCostsNoncurrentNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2700000.03700000.02200000.03100000.04000000.0
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.2

us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument

hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFive


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1700000.02000000.02400000.02800000.03200000.03500000.0
Percentage of DeferredFinanceCostsNoncurrentNet63.054.1109.190.380.00.0
Percentage of Assets0.10.10.10.10.10.2
Percentage of Assets hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFive0.00.00.00.00.00.0

hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value3400000.03900000.04400000.05000000.0
Percentage of DeferredFinanceCostsNoncurrentNet125.9105.4200.0161.3
Percentage of Assets0.10.10.20.2
Percentage of Assets hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven0.00.00.00.0

hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Deferred
Period End2020-12-312019-12-31
Value3500000.03700000.0
Percentage of DeferredFinanceCostsNoncurrentNet129.6100.0
Percentage of Assets0.10.1
Percentage of Assets hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour0.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312019-12-31
Value143141153155
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets4.94.95.25.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value525253555453534142
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.81.81.91.71.51.71.31.5

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

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1919191919191818171817171716
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent37.637.536.035.035.936.335.543.00.00.041.00.00.00.0
Percentage of Assets0.70.70.70.70.60.60.60.60.60.60.60.60.60.6
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1919171919181818182018212019
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent36.536.632.834.835.735.435.543.20.00.044.80.00.00.0
Percentage of Assets0.70.70.60.60.60.50.60.60.60.60.70.70.70.7
Percentage of Assets srt:Europe us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2.22.22.22.62.62.62.62.72.83.92.83.93.23.93.63.73.43.9
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent4.24.24.14.74.84.94.96.40.00.06.70.00.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.2
Percentage of Assets hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.22.62.83.63.9
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent4.14.96.70.00.0
Percentage of Assets0.10.10.10.10.2
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value798192243246259100233234241186184171173172223208201159184166151100171164162122142128123731361311215210910087197473812637
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.83.28.27.77.63.27.47.37.66.66.56.06.06.28.28.07.86.67.77.06.54.67.77.57.86.07.36.66.54.07.77.77.43.37.06.65.91.45.65.66.32.13.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2020-12-312019-12-312019-06-302019-03-31
Value46535650
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0
Percentage of Assets1.61.71.81.6

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value8900000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value7800000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value5700000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value23
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-30
Value586667
Percentage of OperatingLeaseLiability100.0100.0100.0
Percentage of Assets2.02.12.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value67
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets2.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312009-12-312008-12-31
Value1502148615101499143614211446141714421372132213671399156214951426133012621244125912251217117911951247116511491127115611651160111910411010994948894864802789659575509
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets51.551.451.850.444.641.446.244.945.143.346.848.049.454.253.852.150.649.051.952.751.752.453.953.356.755.856.557.559.461.263.263.661.461.762.060.659.058.958.359.752.446.20.0

us-gaap:StockholdersEquity us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5.35.6100.8-12.3-18.7-8.4-23.7-13.8-11.4-10.6-2.7-3.1138.6-25.9
Percentage of StockholdersEquity0.40.40.70.1-0.9-1.3-0.6-1.7-1.0-0.8-0.8-0.2-0.20.90.6-2.1
Percentage of Assets0.20.20.40.0-0.4-0.5-0.3-0.8-0.4-0.4-0.4-0.1-0.10.50.3-1.1
Percentage of Assets us-gaap:ForeignExchangeForward us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-42.3-42.1-40.4-22.6-21.6-21.5-22.4-15.4-15.7-15.8-15.4-18.6-18.0-19.3-18.5-16.2-15.6-14.6
Percentage of StockholdersEquity-2.8-2.8-2.7-1.5-1.5-1.5-1.5-1.1-1.1-1.2-1.2-1.4-1.3-1.2-1.2-1.1-1.2-1.2
Percentage of Assets-1.4-1.5-1.4-0.8-0.7-0.6-0.7-0.5-0.5-0.5-0.5-0.7-0.6-0.7-0.7-0.6-0.6-0.6
Percentage of Assets hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-312017-03-312016-12-312015-12-31
Value-40.4-22.4-15.4-18.5-14.8-14.6-22.7
Percentage of StockholdersEquity-2.7-1.5-1.2-1.2-1.2-1.2-1.9
Percentage of Assets-1.4-0.7-0.5-0.7-0.6-0.6-1.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1110154.1-11.0-19.6-6.9-21.6-11.4-8.5-5.84.54.314
Percentage of StockholdersEquity0.80.71.00.3-0.8-1.4-0.5-1.5-0.8-0.6-0.40.30.31.0
Percentage of Assets0.40.40.50.1-0.3-0.6-0.2-0.7-0.4-0.3-0.20.20.20.5
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-73.2-78.7-59.6-85.2-138.0-155.3-118.7-161.1-118.1-113.9-108.0-81.6-80.8-7.8-45.0-57.2-93.0-158.1-174.4-123.9-69.710-31.9-39.8-15.1-7.0-8.7
Percentage of StockholdersEquity-4.9-5.3-3.9-5.7-9.6-10.9-8.2-11.4-8.2-8.3-8.2-6.0-5.8-0.5-3.0-4.0-7.0-12.5-14.0-10.5-6.10.9-3.2-5.0-2.3-1.2-1.7
Percentage of Assets-2.5-2.7-2.0-2.9-4.3-4.5-3.8-5.1-3.7-3.6-3.8-2.9-2.8-0.3-1.6-2.1-3.5-6.1-7.3-5.7-3.40.6-2.0-2.9-1.2-0.60.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-42.6-46.8-34.8-66.7-105.4-114.2-89.4-124.1-91.0-89.6-86.8-67.5-67.1-9.7-41.3-53.9-82.6-132.0-141.1-86.6
Percentage of StockholdersEquity-2.8-3.1-2.3-4.4-7.3-8.0-6.2-8.8-6.3-6.5-6.6-4.9-4.8-0.6-2.8-3.8-6.2-10.5-11.3-7.3
Percentage of Assets-1.5-1.6-1.2-2.2-3.3-3.3-2.9-3.9-2.8-2.8-3.1-2.4-2.4-0.3-1.5-2.0-3.1-5.1-5.9-4.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value869861849845844845829826817811798795792787774738715678642617589552535526
Percentage of StockholdersEquity57.957.956.356.458.859.557.458.356.759.260.458.256.650.451.859.360.759.055.462.173.483.893.0103.3
Percentage of Assets29.829.829.128.426.224.626.526.225.625.628.327.927.927.327.830.832.733.335.038.542.843.942.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.11.01.01.01.01.01.01.0
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.10.10.10.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value198419821996201520062007197819201854178617261673160615481496125410448456364482831487114
Percentage of StockholdersEquity132.1133.3132.2134.4139.6141.2136.8135.4128.5130.1130.6122.4114.799.1100.1100.888.573.554.845.135.422.512.32.9
Percentage of Assets68.068.568.467.862.358.563.360.958.056.461.158.856.653.753.852.347.741.534.628.020.611.85.70.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-1279.4-1279.4-1277.4-1277.4-1276.9-1276.9-1245.1-1168.9-1112.6-1112.6-1095.9-1020.7-918.7-767.2-731.4-575.3-457.8-305.4-129.7-40.2-32.1-27.2-24.7-23.8
Percentage of StockholdersEquity-85.1-86.0-84.6-85.2-88.9-89.9-86.1-82.4-77.1-81.1-82.9-74.7-65.6-49.1-48.9-46.2-38.8-26.6-11.2-4.0-4.0-4.1-4.3-4.7
Percentage of Assets-43.9-44.2-43.8-43.0-39.6-37.2-39.8-37.0-34.8-35.1-38.8-35.9-32.4-26.6-26.3-24.0-20.9-15.0-7.1-2.5-2.3-2.2-2.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01100000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value869861849845844845829826817811798795792787774766763754738735730727715712709706678674671663642644640632617612609604589579573562552535
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.829.829.128.426.224.626.526.225.625.628.327.927.927.327.828.029.029.330.830.730.831.332.731.832.333.933.334.434.534.835.036.637.838.638.539.140.241.242.843.943.544.143.942.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1984198219962015200620071978192018541786172616731606154814961419136013091254120511471091104499995690484579273668663658954049144841137132328324421217414871
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.068.568.467.862.358.563.360.958.056.461.158.856.653.753.851.851.850.852.350.448.447.047.744.643.543.341.540.437.836.034.633.431.930.028.026.224.522.120.618.516.113.711.85.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-73.2-78.7-59.6-85.2-138.0-155.3-118.7-161.1-118.1-113.9-108.0-81.6-80.8-7.8-45.0-57.2-93.0-158.1-174.4-132.8-134.5-103.5-123.9-107.0-108.5-135.0-69.7-35.29.29.810-17.5-42.7-52.5-31.9-36.4-48.1-25.4-39.8-9.2148.7-15.1-7.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-2.5-2.7-2.0-2.9-4.3-4.5-3.8-5.1-3.7-3.6-3.8-2.9-2.8-0.3-1.6-2.1-3.5-6.1-7.3-5.6-5.7-4.5-5.7-4.8-4.9-6.5-3.4-1.80.50.50.6-1.0-2.5-3.2-2.0-2.3-3.2-1.7-2.9-0.71.10.7-1.2-0.6

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12791279127712771276127612451168111211121095102091876773170270164457554951949845741131131130530526219512997976240393939322624282724
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.944.243.843.039.637.239.837.034.835.138.835.932.426.626.325.726.725.024.023.021.921.520.918.414.214.915.015.613.510.37.15.55.83.82.52.52.62.72.32.01.92.22.22.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value40-1.210783658.62131201114514312194621201266016282.9
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.5-0.436.329.117.21.637.921.018.37.525.522.417.311.623.525.717.15.19.41.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value-4300000.0-4900000.0-2800000.0-7400000.0-13200000.0-27200000.0-41400000.0-63400000.0-43000000.0-219500000.0-36600000.0-49000000.0-42400000.0-59500000.0-120800000.0-54100000.0-31900000.0-35900000.0-7500000.0-12600000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-1.6-0.9-2.6-3.5-5.0-7.3-11.1-7.1-36.0-6.5-9.1-7.7-11.0-23.6-11.0-9.0-10.8-2.5-4.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value-3.100000000000002-13.5-71.6-267.8-123.9284-156.2-63.4-56.7184-120.5-63.5-57.8-15.5-59.3-1.8-24.1-52.92.2-30.1
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.0-4.4-24.2-93.3-32.752.6-27.7-11.1-9.330.3-21.5-11.7-10.6-2.9-11.6-0.4-6.8-16.00.7-11.4

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value33-21.335-189.2-72.126417-8.41111-14.5
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.4-6.911.9-65.9-19.049.03.1-1.51.91.8-2.6

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value34343435343534343438323129292826252424232322191918181817171716141314141414141313131413131312
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Depreciation
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312017-12-312017-09-302017-03-312016-12-312016-09-302016-06-30
Value0.10.00.00.10.00.00.10.00.10.10.10.00.00.1
Percentage of DepreciationDepletionAndAmortization0.30.00.00.30.00.00.30.00.40.40.40.00.00.4

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

us-gaap:OperatingSegments, hxl:CompositeMaterials


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value30303131303130303034302827272624232222212120181717161716
Percentage of DepreciationDepletionAndAmortization89.289.389.489.088.389.689.089.288.590.292.992.692.392.392.992.592.892.292.692.391.891.992.091.791.591.392.592.1

us-gaap:OperatingSegments, hxl:EngineeredProducts


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value3.63.73.73.94.03.73.83.73.83.82.32.32.32.31.91.91.81.81.81.81.81.81.61.51.51.51.41.3
Percentage of DepreciationDepletionAndAmortization10.510.710.611.011.510.411.010.811.29.87.17.47.77.76.77.17.27.47.47.77.78.18.07.87.98.27.57.3

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.942-29.0-46.7-76.342-66.0-18.5-11.459-7.0-15.72.241-0.5-17.3-21.9190.6-36.6-15.468-20.5-26.6-4.870-15.0-19.51.648-6.5-14.5-25.640-73.1-9.46.148-3.66.4-4.730-6.2-23.63615
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value147.6-55.2-59.6-41.026-26.4204.032-6.93.51414-9.0-4.90.710-15.8-17.61.920-21.2-2.31037-5.8215.3183.24.94.116-35.9-8.015137.0107.224-25.8131513
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.5-0.25.12.86.00.7-3.6-0.93.60.2-0.41.0-5.91.6-5.8-3.6-0.20.5-2.30.2-3.00.72.5-7.57.13.23.33.00.1-2.5-3.12.71.1-1.7-12.32.70.64.80.92.2-4.05.8-4.36.00.72.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value40-1.210783658.62131201114514312194621201266016282.9
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.5-0.436.329.117.21.637.921.018.37.525.522.417.311.623.525.717.15.19.41.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-19.49.7-1.04273808072668068618869616459686656535361685255505047484843363948393932372622152315
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.63.4-0.37.813.014.013.311.811.814.812.611.417.214.212.513.512.313.612.611.311.611.913.014.411.212.310.810.911.011.811.510.59.510.212.09.911.19.210.68.07.45.37.66.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-06-302010-03-31
Value2.2-14.0-19.49.7-1.0427380807266806861685550504848433948393237262315
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-4.5-6.63.4-0.37.813.014.013.311.811.814.812.611.414.412.310.810.911.811.510.510.212.09.99.210.68.07.66.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.39.02.40.3-1.7142.42.42.4112.22.02.19.92.12.22.4102.50.82.3102.70.82.4123.22.52.78.84.22.73.38.72.72.63.07.52.62.52.46.41.92.22.65.7
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value3.48.2-1.7-1.38.51.00.96.20.61.15.61.01.06.80.10.96.8
Percentage of ShareBasedCompensation79.191.1-566.776.559.041.737.555.930.052.456.645.541.762.412.539.164.8

us-gaap:ShareBasedCompensation us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hxl:CompositeMaterials


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value0.80.61.5-0.34.71.21.14.11.20.93.61.11.23.40.71.13.10.71.13.60.9
Percentage of ShareBasedCompensation18.66.7500.017.632.650.045.836.960.042.936.450.050.031.287.547.829.587.545.830.036.0

us-gaap:OperatingSegments, hxl:EngineeredProducts


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value0.10.20.5-0.11.20.20.40.80.20.10.70.10.20.70.10.30.60.10.20.50.2
Percentage of ShareBasedCompensation2.32.2166.75.98.38.316.77.210.04.87.14.58.36.412.513.05.712.58.34.28.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value-4300000.0-4900000.0-2800000.0-7400000.0-13200000.0-27200000.0-41400000.0-63400000.0-43000000.0-219500000.0-36600000.0-49000000.0-42400000.0-59500000.0-120800000.0-54100000.0-31900000.0-35900000.0-7500000.0-12600000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.3-1.6-0.9-2.6-3.5-5.0-7.3-11.1-7.1-36.0-6.5-9.1-7.7-11.0-23.6-11.0-9.0-10.8-2.5-4.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.34.92.87.4132741633861334842595652838596757085568371956575645561414348546461825831313517117.512
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302011-06-302011-03-312010-06-302010-03-31
Value-3.100000000000002-13.5-71.6-267.8-123.9284-156.2-63.4-56.7184-120.5-63.5-57.8-15.5-59.3-1.8-24.1-52.92.2-30.1
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.0-4.4-24.2-93.3-32.752.6-27.7-11.1-9.330.3-21.5-11.7-10.6-2.9-11.6-0.4-6.8-16.00.7-11.4

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.00.00.0141414121212131111111110.0101010109.39.49.79.69.6
Percentage of PaymentsOfDividendsCommonStock0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.00.00.02476550.0117410115030281.2576326302034460.0456648400.03515
Percentage of PaymentsForRepurchaseOfCommonStock0.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value58.036.8-0.0540.2190.1840.0010.2270.0910.2280.1650.2670.2440.3050.290.2820.3060.160.2770.3130.3130.2790.30.2920.320.320.320.0570.2740.20.320.3040.317
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1600000.01300000.01500000.01700000.02300000.02300000.02800000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value51.0747.9238.9731.1826.0823.7519.12
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value801331121141134811973584129
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value138746642608112196121117114
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value10187.512162543423212201918
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6.944485458576062493936
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:ChangeInUnbilledRevenueEarnedOverTime

hxl:ChangeInUnbilledRevenueEarnedOverTime


Change
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1000000.0800000.05800000.01200000.0-3200000.03300000.0-6000000.0-3200000.0-6000000.0-2500000.02900000.0
Percentage of ChangeInUnbilledRevenueEarnedOverTime100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:ChangeInUnbilledRevenueEarnedOverTime us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Change
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3400000.0-1600000.03200000.0-500000.01400000.01700000.0-1700000.01400000.01800000.0-2400000.0500000.0
Percentage of ChangeInUnbilledRevenueEarnedOverTime340.0-200.055.2-41.7-43.851.528.3-43.8-30.096.017.2

hxl:EngineeredProducts


Change
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2400000.02600000.01700000.0-4600000.01600000.0-4300000.0-4600000.0-7800000.0-100000.02400000.0
Percentage of ChangeInUnbilledRevenueEarnedOverTime300.044.8141.7143.848.571.7143.8130.04.082.8

hxl:DebtInstrumentCovenantInterestCoverageRatio us-gaap:Range, us-gaap:DebtInstrument

hxl:DebtInstrumentCovenantInterestCoverageRatio

srt:Minimum, hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Debt
Period End2020-12-31
Value0
Percentage of DebtInstrumentCovenantInterestCoverageRatio0.0

hxl:DebtInstrumentsCovenantLeverageRatio us-gaap:Range, us-gaap:DebtInstrument

hxl:DebtInstrumentsCovenantLeverageRatio

srt:Maximum, hxl:AmendedSeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Debt
Period End2020-12-31
Value4.25
Percentage of DebtInstrumentsCovenantLeverageRatio100.0

srt:Maximum, hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Debt
Period End2020-12-31
Value0
Percentage of DebtInstrumentsCovenantLeverageRatio0.0

hxl:DebtInstrumentsCovenantLeverageRatio us-gaap:Range, us-gaap:StatementScenario, us-gaap:DebtInstrument

srt:Maximum, srt:ScenarioForecast, hxl:AmendedSeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Debt
Period End2021-09-302021-06-302021-03-312020-12-31
Value4.255.05.754.25
Percentage of DebtInstrumentsCovenantLeverageRatio0.00.00.0100.0

hxl:DebtInstrumentsCovenantLeverageRatioUnderCertainAcquisitions us-gaap:Range, us-gaap:DebtInstrument

hxl:DebtInstrumentsCovenantLeverageRatioUnderCertainAcquisitions

srt:Maximum, hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Debt
Period End2020-12-31
Value0
Percentage of DebtInstrumentsCovenantLeverageRatioUnderCertainAcquisitions0.0

hxl:DiscreteTaxBenefitFromRevaluationOfDeferredTaxLiabilities

hxl:DiscreteTaxBenefitFromRevaluationOfDeferredTaxLiabilities


Discrete
Period End2021-03-31
Value3200000.0
Percentage of DiscreteTaxBenefitFromRevaluationOfDeferredTaxLiabilities100.0

hxl:DiscreteTaxExpenseBenefitFromRevaluationOfDeferredTaxLiabilities

hxl:DiscreteTaxExpenseBenefitFromRevaluationOfDeferredTaxLiabilities


Discrete
Period End2021-06-30
Value2700000.0
Percentage of DiscreteTaxExpenseBenefitFromRevaluationOfDeferredTaxLiabilities100.0

hxl:GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments

hxl:GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4100000.0-5200000.03200000.02500000.0600000.0-2000000.02500000.0-2300000.03300000.0-3600000.0
Percentage of GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1600000.0-2700000.03300000.02500000.0600000.0-2000000.0-2400000.01900000.0-2100000.0
Percentage of GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments39.051.9103.1100.0100.0100.0104.357.658.3

hxl:EngineeredProducts


Goodwill
Period End2021-03-312019-06-302019-03-31
Value-2500000.01400000.0-1500000.0
Percentage of GoodwillAndIntangibleAssetsCurrencyTranslationAndOtherAdjustments48.142.441.7

hxl:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments

hxl:IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.9-13.0-17.5000000000000049.6-0.74172807970647867608768606358676555535261675255505046484843363947393931372522152215
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:MergerAndRestructuringExpensesNetOfPayments

hxl:MergerAndRestructuringExpensesNetOfPayments


Merger
Period End2021-06-302021-03-312020-06-302020-03-31
Value-4.01.5-5.012
Percentage of MergerAndRestructuringExpensesNetOfPayments100.0100.0100.0100.0

hxl:NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables

hxl:NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.84.03.16.01121305350574543
Percentage of NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hxl:CompositeMaterials


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3.43.64.7102051495641
Percentage of NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables89.590.078.391.392.295.797.898.895.2

us-gaap:OperatingSegments, hxl:EngineeredProducts


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.40.41.31.01.72.31.10.72.1
Percentage of NetImpactOfCapitalExpenditurePaymentsAndAccruedPayables10.510.021.78.77.84.32.21.24.8

hxl:PercentageOfContributionToWasteTonnage dei:EntityAddressesAddressType, us-gaap:Range, us-gaap:StatementGeographical

hxl:PercentageOfContributionToWasteTonnage

hxl:OmegaChemicalCorporationSuperfundSiteWhite, srt:Maximum, stpr:CA


Percentage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.158200.021800.001100.0207
Percentage of PercentageOfContributionToWasteTonnage100.00.0100.00.0100.00.0100.0

hxl:OmegaChemicalCorporationSuperfundSiteWhite, srt:Minimum, stpr:CA


Percentage
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.18800.012-0.00050.000400.0121
Percentage of PercentageOfContributionToWasteTonnage55.00.055.00.036.40.058.5

hxl:PercentageOfReductionInInterestRateOnSeniorNotes us-gaap:DebtInstrument, us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

hxl:PercentageOfReductionInInterestRateOnSeniorNotes

hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven, us-gaap:TreasuryLock, us-gaap:InterestRateLockCommitments


Percentage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302017-12-312017-09-302017-06-302017-02-282017-03-31
Value00.2500.247500.0025000000.00250.0025
Percentage of PercentageOfReductionInInterestRateOnSeniorNotes0.0100.00.0100.00.0100.00.00.00.00.00.0100.0100.0

hxl:ProceedsFromIssueOfSeniorNotesInSettlementOfDerivatives us-gaap:DebtInstrument

hxl:ProceedsFromIssueOfSeniorNotesInSettlementOfDerivatives

hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven


Proceeds
Period End2021-06-302021-03-31
Value010000000.0
Percentage of ProceedsFromIssueOfSeniorNotesInSettlementOfDerivatives0.0100.0

hxl:ProceedsFromPaymentsToStockPlans

hxl:ProceedsFromPaymentsToStockPlans


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.00.82.2-0.31.2-6.40.75.93.5-3.00.61.11.5-2.25.41.25.9-0.31.33.70.3-5.00.12.20.610
Percentage of ProceedsFromPaymentsToStockPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:RepaymentOfFinanceLeaseObligationAndOtherDebtNet

hxl:RepaymentOfFinanceLeaseObligationAndOtherDebtNet


Repayment
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value100000.0300000.0200000.0100000.0100000.0200000.0200000.0200000.0
Percentage of RepaymentOfFinanceLeaseObligationAndOtherDebtNet100.0100.0100.0100.0100.0100.0100.0100.0

hxl:RestructuringReserveSettledAndReceivedWithoutCash

hxl:RestructuringReserveSettledAndReceivedWithoutCash


Restructuring
Period End2021-06-302021-03-31
Value-4100000.0800000.0
Percentage of RestructuringReserveSettledAndReceivedWithoutCash100.0100.0

hxl:RestructuringReserveSettledAndReceivedWithoutCash us-gaap:RestructuringCostAndReserve

hxl:ImpairmentAndOther


Restructuring
Period End2021-06-302021-03-31
Value-4100000.0800000.0
Percentage of RestructuringReserveSettledAndReceivedWithoutCash100.0100.0

hxl:ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations

hxl:ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8.29.80.0-0.58.08.26.18.03.03.77.7
Percentage of ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value8.2110.5-0.5158.86.1133.24.313
Percentage of ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations100.0120.40.0100.0190.0107.3100.0168.8106.7116.2174.0

us-gaap:TreasuryStock


Share
Period End2021-03-312020-09-302020-03-312019-09-302019-03-312018-09-302018-06-302018-03-31
Value-2.0-0.5-7.2-0.6-5.5-0.2-0.6-5.7
Percentage of ShareBasedCompensationExpenseAndExerciseOfSharesIncludingTreasuryStockAcquiredForTaxObligations-20.40.0-90.0-7.3-68.8-6.7-16.2-74.0

hxl:StandardProductWarrantyAccrualPeriodDecreaseExcludingWarrantiesIssued

hxl:StandardProductWarrantyAccrualPeriodDecreaseExcludingWarrantiesIssued


Standard
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value200000.0300000.0400000.01500000.02300000.0-200000.01000000.0300000.01400000.0500000.0700000.0600000.01400000.0600000.0600000.0800000.01100000.0800000.02600000.03300000.01000000.01000000.0700000.0400000.01700000.01100000.02500000.01000000.0-500000.01000000.0
Percentage of StandardProductWarrantyAccrualPeriodDecreaseExcludingWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:StandardProductWarrantyExpenseBenefit

hxl:StandardProductWarrantyExpenseBenefit


Standard
Period End2021-06-302021-03-312020-09-302020-03-312019-09-302019-06-302019-03-31
Value-500000.0200000.0400000.01300000.0-100000.0600000.02400000.0
Percentage of StandardProductWarrantyExpenseBenefit100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.61.50.50.20.20.3-0.20.20.60.30.40.50.40.30.10.20.00.40.30.30.80.30.30.30.20.30.30.70.30.30.30.31.00.50.60.41.60.50.70.50.55.40.57.40.91.5
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2020-09-30
Value9.4
Percentage of AssetImpairmentCharges100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits

us-gaap:DeferredIncomeTaxesAndTaxCredits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1.9-8.8-5.4-45.90.5-0.67.02.52.64.21.8142.610-11.3137.1-5.11225111313161111-10.8291.619-1.70.5161.29.66.0
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312018-12-312018-09-302017-12-312017-09-302017-06-30
Value-200000.0-200000.0-100000.00-100000.0-100000.0-100000.0-100000.0-100000.0-100000.0-100000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-200000.0-300000.0-100000.0-100000.0-100000.0-100000.0-100000.00-100000.0-100000.0-100000.00-100000.0-100000.0-100000.00-100000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0150.0100.00.0100.0100.00.00.00.00.0100.0-0.00.00.0100.0-0.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value200000.0200000.0300000.0200000.0200000.0200000.0200000.0300000.00600000.0300000.0300000.0300000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses-100.0-100.00.0-200.0-200.00.00.00.0-0.00.00.0-300.0-300.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.10.20.10.20.20.10.10.20.10.2-0.13.60.70.10.10.2
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.11.12.71.10.91.01.91.01.11.21.21.30.91.62.50.8
Percentage of DefinedBenefitPlanContributionsByEmployer1100.0550.02700.0550.0450.01000.01900.0500.01100.0600.0-1200.036.1128.61600.02500.0400.0

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

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value900000.0900000.01800000.01700000.01700000.01700000.02200000.02100000.02200000.02200000.02300000.02400000.02300000.02400000.02300000.02000000.02100000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0100000.0100000.0200000.0100000.0100000.0100000.0200000.0100000.0200000.0200000.0100000.0200000.0100000.0200000.0100000.0100000.0
Percentage of DefinedBenefitPlanInterestCost0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value600000.0500000.0900000.0900000.0800000.0900000.01200000.01100000.01100000.01100000.01000000.01200000.01100000.01100000.01300000.01100000.01100000.0
Percentage of DefinedBenefitPlanInterestCost0.0500.0900.0450.0800.0900.01200.0550.01100.0550.0500.01200.0550.01100.0650.01100.01100.0

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

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value500000.0500000.0500000.0500000.0500000.0500000.0500000.0500000.0400000.0500000.0700000.0400000.0500000.0400000.0900000.0800000.0700000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value200000.0100000.0-400000.0-500000.0-500000.0-500000.0-700000.0-700000.0-800000.0-700000.0-900000.0-900000.0-900000.0-900000.0-500000.0-600000.0-700000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost40.020.0-80.0-100.0-100.0-100.0-140.0-140.0-200.0-140.0-128.6-225.0-180.0-225.0-55.6-75.0-100.0

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

us-gaap:DefinedBenefitPlanServiceCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value300000.0200000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0400000.0200000.0300000.0300000.0200000.0400000.0400000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value300000.0200000.0400000.0200000.0300000.0200000.0200000.0300000.0200000.0300000.0300000.0300000.0200000.0300000.0300000.0300000.0200000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0133.366.7100.066.766.7100.066.7100.075.0150.066.7100.0150.075.050.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.5-1.60.1-0.9-0.7-1.02.3-1.30.90.3-0.2-0.1-6.02.01.74.09.91.5-4.30.8-1.64.2-2.41.52.5-16.6-16.0-0.1-0.1-0.23.36.82.1-4.76.81.4-3.23.2
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value600000.0-1700000.02400000.02600000.00-1300000.01200000.0-1700000.0100000.0-300000.0-400000.0-600000.0-5100000.02100000.0900000.03400000.03900000.0400000.0-4500000.00-1400000.01200000.03300000.0-4200000.0300000.0-3300000.0-1400000.0-3300000.0-400000.0-200000.01100000.02100000.0200000.0-1300000.01000000.01700000.0-2600000.0800000.0-3200000.0-3600000.0900000.05300000.0-2400000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-700000.0-1000000.0-1900000.0100000.0-300000.0500000.0800000.0-400000.01300000.02000000.01300000.02000000.01000000.01300000.0500000.01200000.0800000.0800000.0600000.0700000.0800000.0400000.0300000.0800000.0600000.0300000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions

us-gaap:IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-600000.0-1100000.0-1900000.0100000.0-300000.0500000.0800000.0-400000.01300000.02000000.01300000.0
Percentage of IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance


Income
Period End2020-09-30
Value-46.2
Percentage of IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2030-6.1-32.8-76.4-18.8-2.6-2.3-1.71923-24.5177.07.7-14.85.9-0.91.2-18.48.50.814-10.3-10.4-5.329-6.85.6116.38.2-16.120-6.6-1.1101715-17.61124-22.7-9.7351.5
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-4.26.8-9.7-7.2-1.97.6-6.7-3.310.05.83.6-7.915-2.61.5-4.3-5.58.4-3.21.73.62.0-3.10.86.1-0.9-15.712-7.56.41.3-7.011-2.72.20.01.1-2.6-0.9-1.12.11.0-0.10.7-1.61.2
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AwardType

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:EmployeeStockOption


Incremental
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value300000.00100000.0-100000.0300000.00600000.0600000.0600000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Incremental
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value300000.0-100000.0100000.0-100000.0300000.0-100000.0400000.0400000.0400000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.00.0100.0100.0100.00.066.766.766.7

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod

hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Line
Period End2021-06-302021-03-312020-12-31
Value0.053.990.4
Percentage of LineOfCreditFacilityInterestRateDuringPeriod100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent us-gaap:RetirementPlanType

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:PensionPlansDefinedBenefit


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value100000.0200000.01500000.0500000.0600000.0500000.01700000.0800000.0900000.0800000.01800000.01000000.0
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.7-7.5174911-41.138-46.1-6.5-7.3-30.1-1.0-72.03912356211
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts


Oci
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-0.2-1.90.01.00.50.3-0.2-0.21.3-0.7-0.3
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent-4.325.30.0-2.4-1.1-4.62.720.0-1.8-1.8-0.8

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.76.42.6122.8-17.310-13.5-5.4-4.3-14.0-0.4
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent14.9-85.314.524.424.142.127.229.383.158.946.540.0

us-gaap:AccumulatedTranslationAdjustment


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.2-12.031388.8-24.834-33.1-1.4-2.8-19.3-0.4-57.4311228499.1
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent89.4160.0178.277.675.960.390.671.821.538.464.140.079.780.899.280.679.579.1

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.21.7171.00.1-0.9-0.3-0.10.4-3.20.6-1.30.82.30.60.80.2-6.2-0.4-1.2-0.3-4.1-0.81.3-1.34.6-1.50.3-15.71.40.0-2.6100.5-0.70.46.6-0.7-0.2-0.7
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.5-5.411158.6-12.614-10.2-2.9-2.7-10.30.2-16.94.8
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax

us-gaap:CommodityContract, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.90.2-0.6-1.5-2.11.3-5.90.80.90.7
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.9-1.4-1.8-2.6-5.7-4.4-4.7-3.8-2.8-1.8
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax211.1-700.0300.0173.3271.4-338.579.7-475.0-311.1-257.1

us-gaap:InterestRateSwap, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-3.8-14.1-9.40.30.3-0.40.20.30.40.4
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax-422.2-7050.01566.7-20.0-14.3-30.8-3.437.544.457.1

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

us-gaap:CommodityContract, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value200000.0100000.0100000.0400000.0500000.0300000.0200000.0200000.0200000.0200000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value400000.0300000.0500000.0600000.01300000.01100000.01100000.0900000.0600000.0400000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax200.0300.0500.0150.0260.0366.7550.0450.0300.0200.0

us-gaap:InterestRateSwap, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-900000.03200000.0100000.0100000.0100000.00100000.0100000.0100000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax-450.03200.025.020.033.30.050.050.050.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

srt:Maximum, us-gaap:InterestRateSwap, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-30
Value2400000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax1200.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1500000.01100000.0-1200000.0-2000000.0-4400000.0-3300000.0-3600000.0-3000000.0-2200000.0-1300000.0-2500000.0-700000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value1900000.01400000.0-1800000.0-2600000.0-5700000.0-4400000.0-4700000.0-3800000.0-2800000.0-1800000.0-900000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value5.5-19.1255217-36.642-43.0-4.2-5.9-26.4-0.8-73.03512356516-41.61.7-31.020-16.91.526-65.3-34.5-44.4-0.6-0.928259.8-20.64.511-22.7
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-0.2-1.7-1.0-0.10.90.1-0.4-0.61.3-0.8-0.6
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-3.68.9-1.9-0.6-2.5-2.46.875.0-1.8-2.2-1.7

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.5-5.411158.6-12.714-10.2-2.9-2.7-10.30.2
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent27.328.344.928.649.734.734.723.769.045.839.0-25.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5.5-19.15217-36.6-43.0-4.2-5.9-0.8-73.035
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.2-12.031388.8-24.834-33.1-1.4-2.8-19.3-0.4-57.4311228499.1
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent76.462.8124.673.350.967.881.877.033.347.573.150.078.688.8103.380.275.955.8

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax us-gaap:Range, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

srt:Maximum, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-30
Value-100000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value-200000.0100000.0-100000.0100000.0100000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax200.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax us-gaap:Range, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

srt:Maximum, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-30
Value-100000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value-300000.0100000.0500000.0100000.0200000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax300.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.5-5.511142.8-17.314-16.9-5.2-3.6
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:ForeignExchangeForward, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.2-3.98.6112.0-13.611-12.9-4.6-2.1-10.4-0.3
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312012-06-302011-09-30
Value-3.1-12.1-14.3-15.8-13.1-14.79.6-2.7
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet dei:LegalEntity, us-gaap:RestructuringCostAndReserve

hxl:WoodwardInc, hxl:TerminatedMerger


Other
Period End2021-03-31
Value-14.7
Percentage of OtherOperatingIncomeExpenseNet121.5

us-gaap:OtherOperatingIncomeExpenseNet us-gaap:ConsolidationItems

hxl:CorporateReconcilingItemsAndEliminations


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.1-0.1-0.60.6-2.2-13.8
Percentage of OtherOperatingIncomeExpenseNet3.20.84.2-3.816.893.9

us-gaap:OtherOperatingIncomeExpenseNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hxl:CompositeMaterials


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-2.8-12.7-6.6-16.4-8.5-0.6
Percentage of OtherOperatingIncomeExpenseNet90.3105.046.2103.864.94.1

us-gaap:OperatingSegments, hxl:EngineeredProducts


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.20.7-7.10.0-2.4-0.3
Percentage of OtherOperatingIncomeExpenseNet6.5-5.849.7-0.018.32.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-31
Value5.210
Percentage of PaymentsForRestructuring100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

hxl:ImpairmentAndOther


Payments
Period End2021-06-302021-03-31
Value0.82.7
Percentage of PaymentsForRestructuring15.426.0

us-gaap:EmployeeSeverance


Payments
Period End2021-06-302021-03-31
Value4.47.7
Percentage of PaymentsForRestructuring84.674.0

us-gaap:PaymentsOfDebtIssuanceCosts us-gaap:DebtInstrument

us-gaap:PaymentsOfDebtIssuanceCosts

hxl:SeniorUnsecuredCreditFacility


Payments
Period End2020-12-312019-12-31
Value0.00.3
Percentage of PaymentsOfDebtIssuanceCosts0.0100.0

us-gaap:ProceedsFromLongTermLinesOfCredit us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:ProceedsFromLongTermLinesOfCredit

hxl:SeniorUnsecuredCreditFacilityDueTwoThousandTwentyFour


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value300.00.039210370
Percentage of ProceedsFromLongTermLinesOfCredit100.00.00.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:AccountingStandardsUpdate201613


Provision
Period End2020-12-31
Value0
Percentage of ProvisionForDoubtfulAccounts0.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.811-7.7-2.9-5.7-4.5-4.1-3.1-2.3-1.4-3.7-0.21.01.90.5-0.2-3.0-4.8
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

hxl:AccumulatedDefinedBenefitPlansAndPostretirementPlansCosts


Reclassification
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value0.0-0.20.00.10.10.20.20.20.40.00.10.3
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent-0.0-1.7-0.0-1.8-2.2-6.5-8.7-14.3-200.00.05.3-150.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.811-8.9-2.9-5.8-4.6-4.3-3.3-2.5-1.6-3.7-0.6
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0101.7115.6100.0101.8102.2104.9106.5108.7114.3100.0300.0

us-gaap:RepaymentsOfUnsecuredDebt us-gaap:DebtInstrumentRedemptionPeriod

us-gaap:RepaymentsOfUnsecuredDebt

hxl:SeniorUnsecuredCreditFacilityDueTwoThousandTwentyFour


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.0141042661251216969
Percentage of RepaymentsOfUnsecuredDebt100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-09-302020-06-30
Value5.6111513
Percentage of RestructuringCharges100.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

hxl:ImpairmentAndOther


Restructuring
Period End2021-06-302021-03-31
Value4.91.9
Percentage of RestructuringCharges87.516.0

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-31
Value0.710.0
Percentage of RestructuringCharges12.584.0

us-gaap:RestructuringReserveTranslationAdjustment

us-gaap:RestructuringReserveTranslationAdjustment


Restructuring
Period End2021-06-302021-03-31
Value-300000.0600000.0
Percentage of RestructuringReserveTranslationAdjustment100.0100.0

us-gaap:RestructuringReserveTranslationAdjustment us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-31
Value-300000.0600000.0
Percentage of RestructuringReserveTranslationAdjustment100.0100.0

hxl:AccrualForEnvironmentalLossContingenciesHighEndOfRange

hxl:AccrualForEnvironmentalLossContingenciesHighEndOfRange


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1616161616161616161628286.59.26.88.8
Percentage of AccrualForEnvironmentalLossContingenciesHighEndOfRange100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:DeferredTaxAssetsInventoryReserves

hxl:DeferredTaxAssetsInventoryReserves


Deferred
Period End2020-12-312019-12-31
Value9.611
Percentage of DeferredTaxAssetsInventoryReserves100.0100.0

hxl:DeferredTaxAssetsOtherComprehensiveIncome

hxl:DeferredTaxAssetsOtherComprehensiveIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6.16.34.10.24.68.89.16.014138.8
Percentage of DeferredTaxAssetsOtherComprehensiveIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets us-gaap:Range, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

hxl:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets

srt:Maximum, srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.030.0320.04750.04750.0475
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets100.0100.0100.0100.0100.0

srt:Minimum, srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.01450.020.020.020.03
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets48.362.542.142.163.2

hxl:DefinedBenefitPlanEstimatedFutureBenefitPayments us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

hxl:DefinedBenefitPlanEstimatedFutureBenefitPayments

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value222323
Percentage of DefinedBenefitPlanEstimatedFutureBenefitPayments100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value806966
Percentage of DefinedBenefitPlanEstimatedFutureBenefitPayments360.5296.2283.3

hxl:DefinedBenefitPlanEstimatedFutureBenefitPayments us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.43.13.54.0
Percentage of DefinedBenefitPlanEstimatedFutureBenefitPayments10.813.215.00.0

hxl:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsExcessAccumulatedBenefitObligations us-gaap:RetirementPlanSponsorLocation

hxl:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsExcessAccumulatedBenefitObligations

srt:Europe


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value18141414
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsExcessAccumulatedBenefitObligations100.0100.0100.0100.0

hxl:DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets us-gaap:DerivativeInstrumentRisk

hxl:DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets

us-gaap:CommodityContract


Derivative
Period End2021-06-302020-12-31
Value3.71.5
Percentage of DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets100.0100.0

hxl:DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:ForeignExchangeForward, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6.77.4104.60.40.11.3
Percentage of DerivativeAssetsPrepaidExpensesAndOtherCurrentAssets181.10.0713.30.00.00.00.0

hxl:DerivativeAssetsPrepaidExpensesAndOtherNonCurrentAssets us-gaap:DerivativeInstrumentRisk

hxl:DerivativeAssetsPrepaidExpensesAndOtherNonCurrentAssets

us-gaap:CommodityContract


Derivative
Period End2021-03-31
Value2000000.0
Percentage of DerivativeAssetsPrepaidExpensesAndOtherNonCurrentAssets100.0

hxl:DerivativeInstrumentPrincipalAmortizationInNextTwelveMonths us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

hxl:DerivativeInstrumentPrincipalAmortizationInNextTwelveMonths

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value50
Percentage of DerivativeInstrumentPrincipalAmortizationInNextTwelveMonths100.0

hxl:DerivativeInstrumentPrincipalAmortizationInYearFive us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

hxl:DerivativeInstrumentPrincipalAmortizationInYearFive

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value70
Percentage of DerivativeInstrumentPrincipalAmortizationInYearFive100.0

hxl:DerivativeInstrumentPrincipalAmortizationInYearFour us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

hxl:DerivativeInstrumentPrincipalAmortizationInYearFour

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value50
Percentage of DerivativeInstrumentPrincipalAmortizationInYearFour100.0

hxl:DerivativeInstrumentPrincipalAmortizationInYearThree us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

hxl:DerivativeInstrumentPrincipalAmortizationInYearThree

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value50
Percentage of DerivativeInstrumentPrincipalAmortizationInYearThree100.0

hxl:DerivativeInstrumentPrincipalAmortizationInYearTwo us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

hxl:DerivativeInstrumentPrincipalAmortizationInYearTwo

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value50
Percentage of DerivativeInstrumentPrincipalAmortizationInYearTwo100.0

hxl:FinanceLeaseObligationsNoncurrentAndOtherLongTermDebt

hxl:FinanceLeaseObligationsNoncurrentAndOtherLongTermDebt


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2000000.02800000.02500000.01900000.02100000.02200000.02000000.02000000.02200000.02100000.0800000.0
Percentage of FinanceLeaseObligationsNoncurrentAndOtherLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetTaxExpenseBenefitAmount

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetTaxExpenseBenefitAmount


Foreign
Period End2020-12-312020-09-30
Value1800000.0-100000.0
Percentage of ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetTaxExpenseBenefitAmount100.0100.0

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsTaxAmount

hxl:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsTaxAmount


Foreign
Period End2021-06-302021-03-31
Value-1300000.0-1100000.0
Percentage of ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsTaxAmount100.0100.0

hxl:MultiemployerPlanExpectedContributionsInNextFiscalYear

hxl:MultiemployerPlanExpectedContributionsInNextFiscalYear


Multiemployer
Period End2020-12-31
Value2000000.0
Percentage of MultiemployerPlanExpectedContributionsInNextFiscalYear100.0

hxl:NetDeferredFinancingCostsNonCurrentContraLiability

hxl:NetDeferredFinancingCostsNonCurrentContraLiability


Net
Period End2020-12-312019-12-312018-12-312017-12-31
Value3500000.04200000.04800000.05500000.0
Percentage of NetDeferredFinancingCostsNonCurrentContraLiability100.0100.0100.0100.0

hxl:StockholdersEquityIncludingTreasuryStockValue

hxl:StockholdersEquityIncludingTreasuryStockValue


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27822766278727762713269826912586255524852417238823182329222621292031190718201808174417161637160615581476145514321418136012901217113810721034988933903834816801747686600
Percentage of StockholdersEquityIncludingTreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccrualForEnvironmentalLossContingencies


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value2300000.02300000.02400000.02500000.02600000.02700000.02500000.02500000.02600000.02600000.02700000.02800000.02900000.02700000.02800000.02800000.02900000.03100000.03200000.03400000.03500000.02800000.02900000.03000000.03600000.03900000.05000000.06900000.07200000.02800000.03900000.04200000.05700000.06700000.06600000.06900000.07700000.03400000.05000000.05700000.04700000.07300000.08300000.09200000.0
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies dei:EntityAddressesAddressType, us-gaap:StatementGeographical

hxl:OmegaChemicalCorporationSuperfundSiteWhite, stpr:CA


Accrual
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value200000.0300000.0300000.0300000.0300000.0300000.0300000.0300000.0400000.0500000.0600000.0600000.0600000.0600000.0600000.0600000.0700000.0700000.0300000.0300000.0400000.0500000.0600000.0
Percentage of AccrualForEnvironmentalLossContingencies8.011.511.112.012.011.511.511.114.317.222.221.421.420.719.418.820.620.010.710.313.313.912.0

us-gaap:AccrualForEnvironmentalLossContingencies us-gaap:LossContingenciesByNatureOfContingency

hxl:DamageToNaturalResourcesInTheLowerPassaicRiverWatershed


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-31
Value2100000.02100000.02100000.02100000.02000000.02000000.02000000.02000000.02100000.02100000.02100000.02200000.02200000.02000000.02000000.02000000.02100000.02000000.02100000.02100000.02200000.01900000.01900000.02100000.0200000.0
Percentage of AccrualForEnvironmentalLossContingencies91.391.387.584.076.974.180.080.080.880.877.878.675.974.171.471.472.464.565.661.862.967.965.542.05.1

us-gaap:AccruedEnvironmentalLossContingenciesCurrent

us-gaap:AccruedEnvironmentalLossContingenciesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-312011-12-312011-09-302011-06-302010-12-31
Value200000.0300000.0500000.0600000.0700000.0800000.0600000.0600000.0700000.0700000.0800000.0900000.01000000.0800000.0900000.0900000.01000000.01400000.01400000.01700000.01800000.01000000.01100000.01400000.01800000.02100000.03200000.05000000.05300000.03400000.04200000.03300000.03100000.03200000.04200000.0
Percentage of AccruedEnvironmentalLossContingenciesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value800000.0600000.0300000.0300000.0400000.0300000.0400000.0900000.01800000.01200000.01500000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized us-gaap:BusinessAcquisition, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized

hxl:OxfordPerformanceMaterials, us-gaap:FairValueInputsLevel3


Business
Period End2020-12-312019-12-312018-12-312017-12-31
Value3300000.03100000.03000000.02900000.0
Percentage of BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized100.0100.0100.0100.0

hxl:OxfordPerformanceMaterialsInc, us-gaap:FairValueInputsLevel3


Business
Period End2021-06-302021-03-312020-09-30
Value400000.03300000.03200000.0
Percentage of BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized0.00.00.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value404243485455525659535043373538
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet us-gaap:StatementBusinessSegments

hxl:CompositeMaterials


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value7.69.47.88.71111121113111215171415
Percentage of ContractWithCustomerAssetNet18.822.218.117.821.820.424.320.422.121.425.534.845.141.539.6

hxl:EngineeredProducts


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value323235404244394446423728202023
Percentage of ContractWithCustomerAssetNet81.277.881.982.278.279.675.779.677.978.674.565.254.958.560.4

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4042434854555256595350
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateEffectivePercentage

hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFive


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.014.954.834.830.04830.04830.04830.04830.04830.04830.04840.04840.04840.04840.04840.04850.04850.0485
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312017-02-28
Value4.064.03.873.870.03870.03870.03880.03880.03880.03880.03880.03880.03880.03880.03860.03860.0380.0387
Percentage of DebtInstrumentInterestRateEffectivePercentage81.080.880.180.180.180.180.380.380.380.380.280.280.280.279.679.678.40.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument

us-gaap:DebtInstrumentUnamortizedDiscount

hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFiveAndSeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1300000.01400000.01500000.01500000.01600000.01700000.01700000.01800000.01900000.01900000.02000000.02100000.02100000.02200000.02300000.0700000.0
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsCurrentNet

us-gaap:DeferredFinanceCostsCurrentNet


Deferred
Period End2020-12-312019-12-31
Value3500000.03700000.0
Percentage of DeferredFinanceCostsCurrentNet100.0100.0

us-gaap:DeferredFinanceCostsNet us-gaap:DebtInstrument

us-gaap:DeferredFinanceCostsNet

hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFiveAndSeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value3200000.03400000.03500000.03700000.03800000.04000000.04200000.04300000.04500000.04700000.04800000.05000000.05200000.05400000.05500000.02500000.0
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2020-12-312019-12-31
Value7221
Percentage of DeferredIncomeTaxAssetsNet100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value218208178156173130119
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-31
Value1600000.01700000.01700000.0
Percentage of DeferredTaxAssetsCapitalLossCarryforwards100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-31
Value8400000.09900000.09300000.0
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value14411911597119139181159170157151
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9671676558606063566461
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9.98.68.110135.03.511352134
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7.67.78.47.11616161412119.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5.213151320212418141415
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value141311111212109.28.21.2
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value8800000.06000000.04000000.01300000.0400000.0300000.0600000.0800000.0200000.0400000.0800000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value19418916314416011810863503929
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

srt:Europe


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value26212020
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value23191721
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation89.392.687.7100.5

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanType

hxl:UnitedKingdomDefinedBenefitPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value194162135163141
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation746.0754.9667.5780.40.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value4.53.02.13.1
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value51302126
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax1144.41003.31019.0861.3

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-1.6-1.8-3.0-3.3-4.3
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax-35.6-60.0-142.9-106.50.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value-4.53.0-3.1-3.1
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value-50.128-20.0-26.6
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax1113.3960.0645.2858.1

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1.6-1.83.03.34.3
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax-35.6-60.0-96.8-106.50.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value1400000.01300000.01400000.0100000.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3433314545444547474642383632
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:Range, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

srt:Maximum, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.0180.0280.0320.0320.036
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

srt:Maximum, srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.01450.02050.03050.02550.0295
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate80.673.295.379.781.9

srt:Minimum, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.0040.0210.0280.0280.031
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate22.275.087.587.586.1

srt:Minimum, srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value00.00350.01250.0120.0125
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate0.012.539.137.534.7

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1.30.0250.0370.030.0330.034
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate7222.289.3115.693.891.70.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3.00.030.030.030.03
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2320182119
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value220188160189164
Percentage of DefinedBenefitPlanBenefitObligation948.1929.1884.1885.5833.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value2.63.13.34.14.45.3
Percentage of DefinedBenefitPlanBenefitObligation11.215.318.119.222.30.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value2.32.613
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value423739
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter1847.81438.5282.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.71.01.21.5
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter30.438.58.60.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value3.41.41.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value8.25.04.4
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths241.2357.1440.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.40.50.50.5
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths11.835.750.00.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value0.2111.2
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value7.68.96.3
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive3800.074.8525.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.30.30.40.5
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive150.02.533.30.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value121.21.2
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value9.86.35.5
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour78.4525.0458.3

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.30.40.40.5
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour2.433.333.30.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value2000000.02300000.02900000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value6400000.05700000.06400000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree320.0247.8220.7

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value300000.0400000.0500000.0500000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree15.017.417.20.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value1900000.04100000.03200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value5900000.06300000.04500000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo310.5153.7140.6

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value400000.0500000.0500000.0500000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo21.112.215.60.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value3400000.01400000.0900000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value400000.0500000.0500000.0500000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear11.835.755.60.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value3400000.03400000.01400000.01400000.01400000.0900000.0900000.0900000.04600000.04600000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value5600000.05600000.05000000.05000000.05000000.05000000.05000000.05000000.05000000.05000000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear164.7164.7357.1357.1357.1555.6555.6555.6108.7108.7

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear us-gaap:RetirementPlanType

hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans


Defined
Period End2021-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value400000.0400000.0400000.0200000.0500000.0500000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear11.88.78.70.00.00.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value233214184201171160165149128110
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2.20.60.50.20.2132120
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.90.30.30.10.182.972.8

us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1342061771951652139142122
Percentage of DefinedBenefitPlanFairValueOfPlanAssets57.496.596.496.796.613.723.795.695.4

us-gaap:FairValueInputsLevel3


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value976.86.26.55.75.65.76.55.95.1
Percentage of DefinedBenefitPlanFairValueOfPlanAssets41.73.23.43.23.33.53.44.44.64.6

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel1, us-gaap:CashAndCashEquivalents


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.20.60.50.2
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.90.30.30.1

us-gaap:FairValueInputsLevel2, hxl:DiversifiedGrowthFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value69554448
Percentage of DefinedBenefitPlanFairValueOfPlanAssets29.525.924.123.8

us-gaap:FairValueInputsLevel2, hxl:LiabilityDrivenInvestments


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value48293138
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.513.917.219.2

us-gaap:FairValueInputsLevel2, us-gaap:EquityFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value17284456
Percentage of DefinedBenefitPlanFairValueOfPlanAssets7.413.224.127.9

us-gaap:FairValueInputsLevel3, hxl:DiversifiedInvestmentFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.52.42.02.32.1
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.11.11.11.11.2

us-gaap:FairValueInputsLevel3, us-gaap:OtherInsuranceProductLine


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value944.44.24.23.6
Percentage of DefinedBenefitPlanFairValueOfPlanAssets40.62.12.32.12.1

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:InvestmentType

hxl:DiversifiedGrowthFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value69554448
Percentage of DefinedBenefitPlanFairValueOfPlanAssets29.525.924.123.8

hxl:DiversifiedInvestmentFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.52.42.02.3
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.11.11.11.1

hxl:LiabilityDrivenInvestments


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value48293138
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.513.917.219.2

us-gaap:CashAndCashEquivalents


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.20.60.50.2
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.90.30.30.1

us-gaap:EquityFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value17284456
Percentage of DefinedBenefitPlanFairValueOfPlanAssets7.413.224.127.9

us-gaap:OtherInsuranceProductLine


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value944.44.24.2
Percentage of DefinedBenefitPlanFairValueOfPlanAssets40.62.12.32.1

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value233214184201171
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:RetirementPlanType

hxl:UnitedKingdomDefinedBenefitPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value226207178195165
Percentage of DefinedBenefitPlanFairValueOfPlanAssets96.896.896.696.896.7

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

hxl:AllOtherRegionsEquityFund


Defined
Period End2020-12-312019-12-312018-12-31
Value5.10.1080.197
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0100.0

hxl:DiversifiedGrowthFunds


Defined
Period End2020-12-312019-12-312018-12-31
Value27.10.2230.28
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage531.4206.5142.1

hxl:DiversifiedInvestmentFunds


Defined
Period End2020-12-312019-12-312018-12-31
Value1.10.0110.011
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage21.610.25.6

hxl:LiabilityDrivenInvestments


Defined
Period End2020-12-312019-12-312018-12-31
Value23.90.1650.232
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage468.6152.8117.8

hxl:UKEquityFunds


Defined
Period End2020-12-312019-12-312018-12-31
Value2.20.0470.132
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage43.143.567.0

us-gaap:OtherInsuranceProductLine


Defined
Period End2020-12-312019-12-312018-12-31
Value40.60.0210.022
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage796.119.411.2

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

hxl:AllOtherRegionsEquityFund


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value5.10.0920.1440.1660.1870.1930.1950.277
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0100.0100.0100.0100.0100.0

hxl:DiversifiedGrowthFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value29.50.2590.2410.2380.2410.2760.276
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations578.4281.5167.4143.4128.9143.0141.5

hxl:DiversifiedInvestmentFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.10.0110.0110.0120.0120.0130.020.0190.0240.0260.026
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations21.612.07.67.26.46.710.36.90.00.00.0

hxl:LiabilityDrivenInvestments


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value20.50.1380.1720.1920.2010.2230.234
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations402.0150.0119.4115.7107.5115.5120.0

hxl:UKEquityFunds


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.20.040.0970.1120.1260.130.130.2810.280.2780.299
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations43.143.567.467.567.467.466.7101.40.00.00.0

us-gaap:CashAndCashEquivalents


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1.00.0040.0030.0010.0010.0030.0040.007
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations19.64.32.10.60.51.62.12.5

us-gaap:OtherInsuranceProductLine


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value40.60.020.0230.0210.0210.0220.0150.0240.024
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations796.121.716.012.711.211.47.78.70.0

us-gaap:DerivativeAmountOfHedgedItem us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:DerivativeAmountOfHedgedItem

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-11-30
Value270
Percentage of DerivativeAmountOfHedgedItem100.0

us-gaap:DerivativeAssets us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssets

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-31
Value1.72.90.3
Percentage of DerivativeAssets100.0100.0100.0

us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-31
Value3.92.12.2
Percentage of DerivativeAssets229.472.4733.3

us-gaap:ForeignExchangeForward, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-06-302012-03-312011-12-31
Value7.99.4167.41.00.44.30.50.41.21.65.25.8191613131.21.01.91.37.21.34.03.50.91.12.010.01114122.76.61.82.70.6
Percentage of DerivativeAssets464.7324.15333.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-06-302012-03-312011-12-31
Value1314187.41.00.44.30.50.61.52.26.06.7201614141.9121.91.37.21.34.03.50.91.22.310.01114122.76.61.82.70.6
Percentage of DerivativeAssets794.1496.66133.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeAssetsCurrent

us-gaap:DerivativeAssetsCurrent


Derivative
Period End2021-03-312020-12-312020-11-30
Value2900000.0300000.01700000.0
Percentage of DerivativeAssetsCurrent100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-31
Value3.92.12.2
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:ForeignExchangeForward, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7.99.5167.21.00.23.70.30.41.11.34.85.21814137.20.31.81.24.10.92.22.50.30.31.79.210119.02.30.93.62.40.82.20.62.05.92.3
Percentage of DerivativeFairValueOfDerivativeAsset202.6452.4727.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


Derivative
Period End2020-09-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value0.20.20.20.10.10.30.50.60.31.30.16.51.01.00.20.13.10.41.80.90.60.80.30.81.22.63.70.40.13.12.91.00.50.10.3
Percentage of DerivativeFairValueOfDerivativeAsset0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:CommodityContract


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312015-09-30
Value1.13.26.28.95.44.64.74.62.50.8
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:ForeignExchangeForward, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1.62.72.56.5172415311817158.59.20.92.84.38.4243320231422172232125.20.20.40.60.63.15.51.64.48.02.36.62.40.22.6
Percentage of DerivativeFairValueOfDerivativeLiability0.00.0227.3203.1279.0279.8287.0687.0397.9371.7612.00.00.00.00.00.00.00.00.00.00.00.00.02225.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value0.10.40.10.10.10.40.10.20.10.11.00.30.11.60.10.50.30.11.40.10.40.10.710.05.55.90.60.20.10.84.40.10.50.40.23.81.7
Percentage of DerivativeFairValueOfDerivativeLiability0.00.09.11.61.98.72.14.34.00.00.00.00.00.00.00.00.00.00.00.00.012.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilities

hxl:CrossCurrencyAndInterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-31
Value3.21.211
Percentage of DerivativeLiabilities100.0100.0100.0

us-gaap:CommodityContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.21.13.26.28.95.44.64.74.62.5
Percentage of DerivativeLiabilities16.79.90.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeForward, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value1.73.22.66.5172415321817158.6101.22.95.98.524342024142218234218110.80.60.70.63.9
Percentage of DerivativeLiabilities53.1266.723.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value4.94.6149.7233321372422188.9101.53.36.38.824342124142219234318111.41.11.31.34.52.7
Percentage of DerivativeLiabilities153.1383.3133.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DerivativeLiabilitiesCurrent


Derivative
Period End2021-06-302021-03-312020-12-312019-12-312018-12-31
Value1.12.83.6179.7
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
Period End2021-03-312020-12-312020-11-30
Value1.2113.2
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:DerivativeInstrumentRisk

us-gaap:CommodityContract


Derivative
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value0.20.71.71.10.8
Percentage of DerivativeLiabilitiesNoncurrent0.00.00.00.00.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:ForeignExchangeForward, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value0.60.50.73.67.02.97.5
Percentage of DerivativeLiabilitiesNoncurrent0.041.70.00.00.00.00.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

srt:Maximum, us-gaap:ForeignExchangeForward, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2020-12-31
Value0.1
Percentage of DerivativeLiabilitiesNoncurrent0.9

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

us-gaap:CommodityContract


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.36.89.11015202020
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value6556434848507470666275686864736662668958575043
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

hxl:PerformanceBasedRestrictedStockUnits


Employee
Period End2020-12-312019-12-312018-12-312017-12-31
Value1700000.02100000.02000000.02000000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0

hxl:ServicesBasedRestrictedStockUnits


Employee
Period End2020-12-312019-12-31
Value8800000.06100000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized517.6290.5

us-gaap:EmployeeStockOption


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3800000.01500000.01300000.01200000.01100000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized223.571.465.060.00.0

us-gaap:EquityMethodInvestmentOwnershipPercentage dei:LegalEntity

us-gaap:EquityMethodInvestmentOwnershipPercentage

hxl:AerospaceCompositesMalaysiaSdnBhd


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-31
Value50.050.050.050.00.50.50.50.50.50.50.50.50.5
Percentage of EquityMethodInvestmentOwnershipPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:HexcutServices


Equity
Period End2020-12-312019-12-312019-06-302019-03-312018-12-312018-09-30
Value25.00.250.250.250.250.25
Percentage of EquityMethodInvestmentOwnershipPercentage50.050.050.050.050.050.0

hxl:HexcutServicesSAS


Equity
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value25.025.025.00.250.250.25
Percentage of EquityMethodInvestmentOwnershipPercentage50.050.050.050.050.050.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-312019-12-31
Value2200000.02400000.0
Percentage of FinanceLeaseLiability100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value900000.0300000.0900000.0500000.0500000.0600000.0600000.0600000.0700000.0700000.0300000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2020-12-312019-12-31
Value1300000.01800000.0
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-31
Value-20300000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value41
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value7000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value6700000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value6700000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value7000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value7000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months


Foreign
Period End2021-06-302021-03-312020-12-312020-09-30
Value5800000.05200000.06500000.0-1200000.0
Percentage of ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months100.0100.0100.0100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value899495114121136137129126123122114118122135133133127116136130139131142138133130128118105991009893867584808069
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value10793941211651751541821701701311431371331261331301251201291441421201371381331111181171161031009999951061061028662
Percentage of InventoryRawMaterialsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value35292326304240394240435049445246485053495650544650484853526162605353515351494838
Percentage of InventoryWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value12
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

hxl:SeniorUnsecuredRevolvingCreditFacilityMaturesInJuneTwoThousandTwentyFour


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value543536772698
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:LongTermDebtFairValue

hxl:SeniorUnsecuredNotesFourPointSevenPercentDueTwoThousandTwentyFive, us-gaap:FairValueInputsLevel2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value330326336334326346323324325314307305306313321323322318
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hxl:SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySeven, us-gaap:FairValueInputsLevel2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value428418432431427408416415412400386387390397410410410403
Percentage of LongTermDebtFairValue129.6128.1128.6129.1130.9118.0128.7128.3126.8127.4125.6126.9127.4126.8127.7126.8127.4126.4

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-31
Value3.0
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312011-12-31
Value6.71.71125171337
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCountry


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312011-12-31
Value380273249242222207168
Percentage of OperatingLossCarryforwards5674.616100.02167.0945.31291.31502.9446.6

us-gaap:OperatingLossCarryforwardsValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:ForeignCountry


Operating
Period End2020-12-31
Value500000.0
Percentage of OperatingLossCarryforwardsValuationAllowance100.0

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

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.83.83.81.31.31.31.40.90.91.00.91.04.84.5
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1.61.00.91.71.71.30.60.30.41.20.41.01.20.3
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities42.126.323.7130.8130.8100.042.933.344.4120.044.4100.025.06.7

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities us-gaap:RetirementPlanType

hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value0.40.40.40.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities10.510.510.538.538.538.535.755.655.650.055.650.010.40.011.10.00.00.0

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value0.40.50.50.50.5
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities10.535.755.611.10.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2323232020202018181918182221
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2020182121201918192119222119
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent87.785.980.2101.4101.497.696.197.4102.1109.8106.1117.098.693.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent us-gaap:RetirementPlanType

hxl:PostretirementHealthCareAndLifeInsuranceBenefitPlans


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2.62.62.63.13.13.13.13.23.34.43.34.43.74.44.14.23.94.4
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent11.111.111.215.015.015.015.316.917.622.818.223.416.70.019.20.00.00.0

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.63.13.34.14.4
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent11.215.318.219.20.0

us-gaap:RestructuringReserve

us-gaap:RestructuringReserve


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value1215144.71.6
Percentage of RestructuringReserve100.0100.0100.0100.0100.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-12-312019-12-31
Value1215141.6
Percentage of RestructuringReserve100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

hxl:PerformanceBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value300000.0312690.0336300.0367760.0400000.0400000.0400000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0

hxl:ServicesBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value500000.0425470.0452180.0490740.0500000.0500000.0500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber166.7136.1134.5133.4125.0125.0125.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

hxl:PerformanceBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value68.7760.4851.7545.3542.6636.5931.68
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0

hxl:ServicesBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value47.9848.0641.6536.7533.7231.7327.76
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue69.879.580.581.079.086.787.6

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2020-12-31
Value4000000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value900000.0900000.01100000.01300000.01800000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value46.2941.032.8625.2721.99
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value8.331295357
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:EmployeeStockOption


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value5.728264553
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrual

us-gaap:StandardProductWarrantyAccrual


Standard
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value1.82.52.63.03.04.55.56.66.56.94.83.85.23.93.65.86.26.45.56.77.06.76.17.96.08.0115.95.24.34.55.24.94.05.15.16.26.05.75.44.95.04.33.73.8
Percentage of StandardProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value2626262626262524242423222018181717161514141312119.59.59.39.38.26.65.14.34.33.32.52.52.52.52.22.02.02.12.22.01.9
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UndistributedEarningsOfForeignSubsidiaries


Undistributed
Period End2020-12-31
Value720
Percentage of UndistributedEarningsOfForeignSubsidiaries100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-31
Value2400000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:AllowanceForCreditLoss


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value0.80.60.30.30.40.3
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowanceOfDeferredTaxAssets


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value6.9444854585760624939363016
Percentage of ValuationAllowancesAndReservesBalance862.57450.016266.718300.014725.019266.70.00.00.00.00.00.00.0

Line plots across dimensions of each concept


Operating Margin
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating  Marginus-gaap: Consolidation Items, us-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Operating Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:Assets
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Assetsus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:AmortizationOfIntangibleAssets
us-gaap:StatementBusinessSegments
(None,)
Amortization Of Intangible Assetsus-gaap: Statement Business Segments
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Investments In Affiliates Subsidiaries Associates And Joint Venturesus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:IntangibleAssetsNetIncludingGoodwill
us-gaap:StatementBusinessSegments
(None,)
Intangible Assets Net Including Goodwillus-gaap: Statement Business Segments
us-gaap:DeferredFinanceCostsNoncurrentNet
us-gaap:DebtInstrument
(None,)
Deferred Finance Costs Noncurrent Netus-gaap: Debt Instrument
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
(None, 'us-gaap:PensionPlansDefinedBenefit')
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrentus-gaap: Retirement Plan Sponsor Location, us-gaap: Retirement Plan Type
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanType
(None,)
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrentus-gaap: Retirement Plan Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Depreciation Depletion And Amortizationus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:ShareBasedCompensation
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Share Based Compensationus-gaap: Consolidation Items, us-gaap: Statement Business Segments