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  <xs:element id="cma_UnrecognizedTaxBenefitsDecreaseResultingfromOtherTaxPositionChanges" abstract="false" name="UnrecognizedTaxBenefitsDecreaseResultingfromOtherTaxPositionChanges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_EnergySwapsMember" abstract="true" name="EnergySwapsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_CreditRelatedFinancialInstrumentsDomain" abstract="true" name="CreditRelatedFinancialInstrumentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_PastDuePeriodResidentialMortgageAndHomeEquityLoansPlacedOnNonaccrualStatus" abstract="false" name="PastDuePeriodResidentialMortgageAndHomeEquityLoansPlacedOnNonaccrualStatus" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cma_Tier1CapitalToRiskWeightedAssets" abstract="false" name="Tier1CapitalToRiskWeightedAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit" abstract="false" name="WatchListLettersOfCreditAsPercentageOfTotalLettersOfCredit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_CreditRiskFinancialInstrumentsOffBalanceSheetRiskTableTextBlock" abstract="false" name="CreditRiskFinancialInstrumentsOffBalanceSheetRiskTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_CommonEquityTierOneRiskedBasedCapital" abstract="false" name="CommonEquityTierOneRiskedBasedCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome" abstract="false" name="LoansReceivableCommercialFinancialAndAgriculturalNetOfDeferredIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_CurrentLoans" abstract="false" name="CurrentLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_A4.00NotesDue2029Member" abstract="true" name="A4.00NotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_LoansPastDueAndStillAccruing" abstract="false" name="LoansPastDueAndStillAccruing" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ConservationBuffer" abstract="false" name="ConservationBuffer" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_ScheduleOfConsolidatedStatementsOfComprehensiveIncomeWithChangeInAccountingPrincipleTableTextBlock" abstract="false" name="ScheduleOfConsolidatedStatementsOfComprehensiveIncomeWithChangeInAccountingPrincipleTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_ThreePointEightZeroPercentSubNotesDue2026Member" abstract="true" name="ThreePointEightZeroPercentSubNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_RetailBankMember" abstract="true" name="RetailBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_RiskManagementDerivativesMember" abstract="true" name="RiskManagementDerivativesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_AverageReserveRequirement" abstract="false" name="AverageReserveRequirement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LeasesSupplementalBalanceSheetTableTextBlock" abstract="false" name="LeasesSupplementalBalanceSheetTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_OpenTaxYearsSecondGrouping" abstract="false" name="OpenTaxYearsSecondGrouping" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:gYearListItemType"/>
  <xs:element id="cma_DeferredTaxAssetsStateValuationAllowance" abstract="false" name="DeferredTaxAssetsStateValuationAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LeasesSupplementalCashFlowTableTextBlock" abstract="false" name="LeasesSupplementalCashFlowTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_CreditRelatedFinancialInstruments" abstract="false" name="CreditRelatedFinancialInstruments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DepositorySharesIssued" abstract="false" name="DepositorySharesIssued" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cma_CashDividendsPaidToParentCompanyByBankSubsidiaries" abstract="false" name="CashDividendsPaidToParentCompanyByBankSubsidiaries" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DebtInstrumentMaturityYear" abstract="false" name="DebtInstrumentMaturityYear" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="cma_CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" abstract="false" name="CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_CommercialLendingFees" abstract="false" name="CommercialLendingFees" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LetterOfCreditFees" abstract="false" name="LetterOfCreditFees" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_NonInterestIncomeExcludingNetSecuritiesGains" abstract="false" name="NonInterestIncomeExcludingNetSecuritiesGains" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DeferredTaxLiabilityHedginggainsandlosses" abstract="false" name="DeferredTaxLiabilityHedginggainsandlosses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ConsumerFinancingReceivableMember" abstract="true" name="ConsumerFinancingReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_CommercialRealEstateLineOfBusinessClassificationDomain" abstract="true" name="CommercialRealEstateLineOfBusinessClassificationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_BusinessBankMember" abstract="true" name="BusinessBankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_SevenPointEightSevenFivePercentageSubordinatedNoteDue2026Member" abstract="true" name="SevenPointEightSevenFivePercentageSubordinatedNoteDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_LongestExpirationYearLettersOfCredit" abstract="false" name="LongestExpirationYearLettersOfCredit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="cma_CarryingValueOfUnusedCommitmentsToExtendCredit" abstract="false" name="CarryingValueOfUnusedCommitmentsToExtendCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LoanClassificationDomain" abstract="true" name="LoanClassificationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_CreditQualityAndAllowanceForCreditLossesAbstract" abstract="true" name="CreditQualityAndAllowanceForCreditLossesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cma_InterestAndDividendIncomeSecuritiesAFSAndHTM" abstract="false" name="InterestAndDividendIncomeSecuritiesAFSAndHTM" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_OtherComprehensiveIncomeLossReclassificationAdjustmentPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicDefinedBenefitCostNetOfTax" abstract="false" name="OtherComprehensiveIncomeLossReclassificationAdjustmentPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicDefinedBenefitCostNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_TotalInternallyClassifiedWatchListLettersOfCredit" abstract="false" name="TotalInternallyClassifiedWatchListLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_CumulativeEffectOfChangeInAccountingPrinciple" abstract="false" name="CumulativeEffectOfChangeInAccountingPrinciple" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DefinedBenefitPlanYearThatReachesUltimateTrendRateInCurrentExpense" abstract="false" name="DefinedBenefitPlanYearThatReachesUltimateTrendRateInCurrentExpense" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="cma_DefinedBenefitPlanMarketRelatedValuePlanAssetsAmortizationPeriod" abstract="false" name="DefinedBenefitPlanMarketRelatedValuePlanAssetsAmortizationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cma_ThresholdDaysPastDueOtherConsumerPlacedOnNonaccrualStatus" abstract="false" name="ThresholdDaysPastDueOtherConsumerPlacedOnNonaccrualStatus" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cma_CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInAllowanceForCreditLossesOnLendingRelatedCommitments" abstract="false" name="CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInAllowanceForCreditLossesOnLendingRelatedCommitments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LowIncomeHousingTaxCreditsMember" abstract="true" name="LowIncomeHousingTaxCreditsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_LoanClassificationAxis" abstract="true" name="LoanClassificationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_MethodofAssessingEffectivenessDomain" abstract="true" name="MethodofAssessingEffectivenessDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DefinedBenefitPlanActuarialGainLossAmortizationAdjustmentAllowablePercentage" abstract="false" name="DefinedBenefitPlanActuarialGainLossAmortizationAdjustmentAllowablePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_NoninterestDomain" abstract="true" name="NoninterestDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_ChangeInAccountingPrincipleConsolidatedBalanceSheetsTable" abstract="true" name="ChangeInAccountingPrincipleConsolidatedBalanceSheetsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_IncreaseDecreaseInOtherInvestingAssetsAndLiabilitiesNet" abstract="false" name="IncreaseDecreaseInOtherInvestingAssetsAndLiabilitiesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LoansReceivableUnusedCommitment" abstract="false" name="LoansReceivableUnusedCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_AssetsFairValueDisclosureExcludingAssetsValuedatNAV" abstract="false" name="AssetsFairValueDisclosureExcludingAssetsValuedatNAV" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_Tier1RiskBasedCapital" abstract="false" name="Tier1RiskBasedCapital" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_LeverageRatio" abstract="false" name="LeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_ShortCutMethodMember" abstract="true" name="ShortCutMethodMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_SignificantGroupConcentrationsOfCreditRiskAbstract" abstract="true" name="SignificantGroupConcentrationsOfCreditRiskAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cma_NumberOfMajorBusinessSegments" abstract="false" name="NumberOfMajorBusinessSegments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cma_CommercialRealEstateLineOfBusinessClassificationAxis" abstract="true" name="CommercialRealEstateLineOfBusinessClassificationAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_Purchases" abstract="false" name="Purchases" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LoansReceivableCommercialMortgageNetOfDeferredIncome" abstract="false" name="LoansReceivableCommercialMortgageNetOfDeferredIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_NetIncreaseInFixedAssets" abstract="false" name="NetIncreaseInFixedAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ReturnOnAverageAssets" abstract="false" name="ReturnOnAverageAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DefinedBenefitPlanActualRateOfReturnOnPlanAssets" abstract="false" name="DefinedBenefitPlanActualRateOfReturnOnPlanAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_BalanceAtBeginningAndEndOfPeriod" abstract="false" name="BalanceAtBeginningAndEndOfPeriod" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LeaseExpenseTableTextBlock" abstract="false" name="LeaseExpenseTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_Othersourcesofnoninterestincome" abstract="false" name="Othersourcesofnoninterestincome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_BankcardHomeEquityAndOtherMember" abstract="true" name="BankcardHomeEquityAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_Interestexpenseonhedgedmediumandlongtermdebt" abstract="false" name="Interestexpenseonhedgedmediumandlongtermdebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_FourPercentagesubordinatedNotesDue2025Member" abstract="true" name="FourPercentagesubordinatedNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_ShareRepurchaseProgramMember" abstract="true" name="ShareRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_DepositsCustomerCertificatesDeposits" abstract="false" name="DepositsCustomerCertificatesDeposits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DeferredTaxAssetsFederalValuationAllowance" abstract="false" name="DeferredTaxAssetsFederalValuationAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_OperatingLossCarryforwardsExpirationDateFederal" abstract="false" name="OperatingLossCarryforwardsExpirationDateFederal" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="cma_FinanceOtherMember" abstract="true" name="FinanceOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_Dayonedecreaseintheoverallallowanceforcreditlosses" abstract="false" name="Dayonedecreaseintheoverallallowanceforcreditlosses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_InterestRateSwapAgreementMaturity" abstract="false" name="InterestRateSwapAgreementMaturity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DeferredTaxAssetsNetUnrealizedGainsOnInvestmentSecuritiesAvailableForSale" abstract="false" name="DeferredTaxAssetsNetUnrealizedGainsOnInvestmentSecuritiesAvailableForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_TotalAutomotiveLoans" abstract="false" name="TotalAutomotiveLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_CreditRelatedFinancialInstrumentsAxis" abstract="true" name="CreditRelatedFinancialInstrumentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_EffectiveIncomeTaxRateReconciliationInterestOnIncomeTaxLiabilities" abstract="false" name="EffectiveIncomeTaxRateReconciliationInterestOnIncomeTaxLiabilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_Dayspastduedefinedassubsequentdefault" abstract="false" name="Dayspastduedefinedassubsequentdefault" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cma_RightOfUseROUAssets" abstract="false" name="RightOfUseROUAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_MethodofAssessingEffectivenessAxis" abstract="true" name="MethodofAssessingEffectivenessAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_TaxCreditsandBenefitsRelatedToTaxCreditEntitiesDomain" abstract="true" name="TaxCreditsandBenefitsRelatedToTaxCreditEntitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_OtherTaxBenefitsRelatedToTaxCreditEntitiesMember" abstract="true" name="OtherTaxBenefitsRelatedToTaxCreditEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_NetCreditRelatedChargeOffs" abstract="false" name="NetCreditRelatedChargeOffs" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_CommercialRealEstateBusinessLineMember" abstract="true" name="CommercialRealEstateBusinessLineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_SchedulesOfConcentrationOfRiskOutstandingLoansAndUnusedCommitmentsFromCommercialRealEstateTableTextBlock" abstract="false" name="SchedulesOfConcentrationOfRiskOutstandingLoansAndUnusedCommitmentsFromCommercialRealEstateTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_TaxCreditsandBenefitsRelatedToTaxCreditEntitiesAxis" abstract="true" name="TaxCreditsandBenefitsRelatedToTaxCreditEntitiesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_CreditRelatedFinancialInstrumentsTable" abstract="true" name="CreditRelatedFinancialInstrumentsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_IncreaseDecreaseInOtherFinancingAssetsAndLiabilitiesNet" abstract="false" name="IncreaseDecreaseInOtherFinancingAssetsAndLiabilitiesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_PastDuePeriodBusinessLoansPlacedOnNonaccrualStatus" abstract="false" name="PastDuePeriodBusinessLoansPlacedOnNonaccrualStatus" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cma_CashCollateralPostedForDerivativesInLiabilityPosition" abstract="false" name="CashCollateralPostedForDerivativesInLiabilityPosition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_AdvanceToSubsidiaryBank" abstract="false" name="AdvanceToSubsidiaryBank" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_FixedInterestRateSwaps" abstract="false" name="FixedInterestRateSwaps" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_Stockoptionsexcludedbecauseexercisepricesweregreaterthanaveragemarketpriceofshares" abstract="false" name="Stockoptionsexcludedbecauseexercisepricesweregreaterthanaveragemarketpriceofshares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cma_OperatingLossCarryforwardsExpirationDateState" abstract="false" name="OperatingLossCarryforwardsExpirationDateState" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="cma_Taxbenefitsfromemployeestocktransactions" abstract="false" name="Taxbenefitsfromemployeestocktransactions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_EnergyCapsAndFloorsPurchasedMember" abstract="true" name="EnergyCapsAndFloorsPurchasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_DocumentAndEntityInformationAbstract" abstract="true" name="DocumentAndEntityInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cma_ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementCashFlowSwapsTable" abstract="true" name="ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementCashFlowSwapsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_OtherComprehensiveIncomeLossReclassificationAdjustmentPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicDefinedBenefitCostTax" abstract="false" name="OtherComprehensiveIncomeLossReclassificationAdjustmentPensionAndOtherPostretirementBenefitPlansRecognizedInNetPeriodicDefinedBenefitCostTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ChangeInAccountingPrincipleConsolidatedStatementsOfCashFlowsTable" abstract="true" name="ChangeInAccountingPrincipleConsolidatedStatementsOfCashFlowsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cma_CommercialAndOtherMember" abstract="true" name="CommercialAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_FairValueAmountOfDerivativeCreditRiskParticipationAgreements" abstract="false" name="FairValueAmountOfDerivativeCreditRiskParticipationAgreements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_EnergyCapsAndFloorsWrittenMember" abstract="true" name="EnergyCapsAndFloorsWrittenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_Carryingvalueofhedgeditem" abstract="false" name="Carryingvalueofhedgeditem" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_NotionalAmountOfDerivativeCreditRiskParticipationAgreements" abstract="false" name="NotionalAmountOfDerivativeCreditRiskParticipationAgreements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_FloatingRateBasedonFHLBAuctionDue2026Member" abstract="true" name="FloatingRateBasedonFHLBAuctionDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_BusinessLoansMember" abstract="true" name="BusinessLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_CarryingValueOfStandbyAndCommercialLettersOfCredit" abstract="false" name="CarryingValueOfStandbyAndCommercialLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_LoansWithTermsExtendedInAccordanceWithCARESAct" abstract="false" name="LoansWithTermsExtendedInAccordanceWithCARESAct" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees" abstract="false" name="CarryingValueOfStandbyAndCommercialLettersOfCreditIncludedInDeferredFees" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ChangeInAccountingPrincipleConsolidatedBalanceSheetsLineItems" abstract="true" name="ChangeInAccountingPrincipleConsolidatedBalanceSheetsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cma_EffectsOfFairValueHedgingOnTheConsolidatedStatementsOfComprehensiveIncomeTableTextBlock" abstract="false" name="EffectsOfFairValueHedgingOnTheConsolidatedStatementsOfComprehensiveIncomeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_TransfersIntoOrOutOfLevelOneOrLevelTwoOrLevelThree" abstract="false" name="TransfersIntoOrOutOfLevelOneOrLevelTwoOrLevelThree" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_OtherTaxCreditEntitiesMember" abstract="true" name="OtherTaxCreditEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_IncomeLossFromContinuingOperationsBeforeIncomeTaxes" abstract="false" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ConcentrationRiskThresholdPercentage" abstract="false" name="ConcentrationRiskThresholdPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cma_WealthManagementMember" abstract="true" name="WealthManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_FinanceMember" abstract="true" name="FinanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_AllowanceForOffBalanceSheetCreditLosses" abstract="false" name="AllowanceForOffBalanceSheetCreditLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_SoftwareExpenses" abstract="false" name="SoftwareExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cma_ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementFairValueSwapsTableTextBlock" abstract="false" name="ScheduleOfWeightedAverageMaturityAndInterestRatesOnRiskManagementFairValueSwapsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cma_LowIncomeHousingTaxCreditEntitiesMember" abstract="true" name="LowIncomeHousingTaxCreditEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cma_DeferredCompensationPlanAssetsMember" abstract="true" name="DeferredCompensationPlanAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
