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        <link:definition>1052 - Disclosure - Fair value measurements (Tables)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1057 - Disclosure - Significant accounting policies - Additional Information (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1060 - Disclosure - Acquisitions - Consideration Paid for Acquired Identifiable Assets and Liabilities (Parenthetical) (Detail)</link:definition>
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        <link:definition>1061 - Disclosure - Acquisitions - Pro forma Information (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1064 - Disclosure - Investment securities - Investment Ratings of All Privately Issued Mortgage-Backed Securities, Collateralized Debt Obligations and Other Debt Securities (Detail)</link:definition>
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        <link:definition>1065 - Disclosure - Investment securities - Amortized Cost and Estimated Fair Value of Collateralized Mortgage Obligations (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1067 - Disclosure - Investment securities - Changes in Credit Losses Associated with Debt Securities for which Other-Than-Temporary Impairment Losses (Detail)</link:definition>
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        <link:definition>1068 - Disclosure - Investment securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail)</link:definition>
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        <link:definition>1070 - Disclosure - Loans and leases - Total Gross Loans and Leases Outstanding (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1072 - Disclosure - Loans and leases - Outstanding Principal Balance and Carrying Amount of Loans that is Included in Consolidated Balance Sheet (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1075 - Disclosure - Loans and leases - Loan Modification Activities that were Considered Troubled Debt Restructurings (Detail)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
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        <link:definition>1077 - Disclosure - Loans and leases - Minimum Future Lease Payments to be Received from Lease Financings (Detail)</link:definition>
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        <link:definition>1080 - Disclosure - Allowance for credit losses - Impaired Loans and Leases (Detail)</link:definition>
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  <element name="ChangeInFairValueOfNonrecurringFairValueMeasuredLoansForChargeOffsAndImpairmentReserves" id="mtb_ChangeInFairValueOfNonrecurringFairValueMeasuredLoansForChargeOffsAndImpairmentReserves" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangesInAllowanceForCreditLossesTableTextBlock" id="mtb_ChangesInAllowanceForCreditLossesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangesInCreditLossesAssociatedWithDebtSecuritiesForWhichOtherThanTemporaryImpairmentLossesTableTextBlock" id="mtb_ChangesInCreditLossesAssociatedWithDebtSecuritiesForWhichOtherThanTemporaryImpairmentLossesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangesInLevelThreeAssetsAndLiabilitiesMeasuredAtEstimatedFairValueOnRecurringBasisTableTextBlock" id="mtb_ChangesInLevelThreeAssetsAndLiabilitiesMeasuredAtEstimatedFairValueOnRecurringBasisTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangesInLevelThreePensionPlanAssetsMeasuredAtFairValueOnRecurringBasisTableTextBlock" id="mtb_ChangesInLevelThreePensionPlanAssetsMeasuredAtFairValueOnRecurringBasisTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="ClassOfFinancingReceivableWithNoRelatedAllowanceMember" id="mtb_ClassOfFinancingReceivableWithNoRelatedAllowanceMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CollateralizedDebtObligationsBackedByAmericanDepositorySharesMember" id="mtb_CollateralizedDebtObligationsBackedByAmericanDepositorySharesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CollateralizedDebtObligationsBackedByTrustPreferredSecuritiesMember" id="mtb_CollateralizedDebtObligationsBackedByTrustPreferredSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CollateralizedMortgageObligationsAmortizedCost" id="mtb_CollateralizedMortgageObligationsAmortizedCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CollateralizedMortgageObligationsEstimatedFairValue" id="mtb_CollateralizedMortgageObligationsEstimatedFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CollectivelyEvaluatedForImpairmentMember" id="mtb_CollectivelyEvaluatedForImpairmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CombinationOfConcessionTypesMember" id="mtb_CombinationOfConcessionTypesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CombinedOutstandingPrincipalAmountOfMortgageBackedSecuritiesIssuedByQualifiedSpecialPurposeTrustsHeldByUnrelatedParties" id="mtb_CombinedOutstandingPrincipalAmountOfMortgageBackedSecuritiesIssuedByQualifiedSpecialPurposeTrustsHeldByUnrelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="CommercialFinancialLeasingMember" id="mtb_CommercialFinancialLeasingMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommercialLoansAndLeasesMember" id="mtb_CommercialLoansAndLeasesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommercialMortgageLoansOfPrivatelyHeldCompany" id="mtb_CommercialMortgageLoansOfPrivatelyHeldCompany" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommercialRealEstateExcludingResidentialBuilderAndDeveloperAndOtherConstructionMember" id="mtb_CommercialRealEstateExcludingResidentialBuilderAndDeveloperAndOtherConstructionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommercialRealEstateSegmentMember" id="mtb_CommercialRealEstateSegmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsRegardingCommercialLettersOfCredit" id="mtb_CommitmentsRegardingCommercialLettersOfCredit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsRegardingFinancialGuaranteesAndIndemnificationContracts" id="mtb_CommitmentsRegardingFinancialGuaranteesAndIndemnificationContracts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsRegardingStandbyLettersOfCredit" id="mtb_CommitmentsRegardingStandbyLettersOfCredit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsTableTextBlock" id="mtb_CommitmentsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditAbstract" id="mtb_CommitmentsToExtendCreditAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForCommercialAndOther" id="mtb_CommitmentsToExtendCreditForCommercialAndOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForCommercialRealEstateLoansToBeSold" id="mtb_CommitmentsToExtendCreditForCommercialRealEstateLoansToBeSold" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForHomeEquityLinesOfCredit" id="mtb_CommitmentsToExtendCreditForHomeEquityLinesOfCredit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForOtherCommercialRealEstateAndConstruction" id="mtb_CommitmentsToExtendCreditForOtherCommercialRealEstateAndConstruction" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForOtherResidentialRealEstate" id="mtb_CommitmentsToExtendCreditForOtherResidentialRealEstate" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToExtendCreditForResidentialRealEstateLoansToBeSold" id="mtb_CommitmentsToExtendCreditForResidentialRealEstateLoansToBeSold" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToOriginateRealEstateLoansForSale" id="mtb_CommitmentsToOriginateRealEstateLoansForSale" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="CommitmentsToSellRealEstateLoansMember" id="mtb_CommitmentsToSellRealEstateLoansMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsToSellRealEstateLoansNotionalAmount" id="mtb_CommitmentsToSellRealEstateLoansNotionalAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="CommonStockIssuable" id="mtb_CommonStockIssuable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommonStockIssuableMember" id="mtb_CommonStockIssuableMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="CondensedFinancialInformationParentCompanyBalanceSheetsTableTextBlock" id="mtb_CondensedFinancialInformationParentCompanyBalanceSheetsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CondensedFinancialInformationParentCompanyStatementOfOperationsTableTextBlock" id="mtb_CondensedFinancialInformationParentCompanyStatementOfOperationsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CondensedFinancialInformationParentCompanyStatementsOfCashFlowsTableTextBlock" id="mtb_CondensedFinancialInformationParentCompanyStatementsOfCashFlowsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="ConsolidationSecuritizedTrustsIncreaseDecreaseAccruedInterestAndOther" id="mtb_ConsolidationSecuritizedTrustsIncreaseDecreaseAccruedInterestAndOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConsolidationSecuritizedTrustsIncreaseDecreaseInvestmentSecuritiesHeldForSale" id="mtb_ConsolidationSecuritizedTrustsIncreaseDecreaseInvestmentSecuritiesHeldForSale" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConsolidationSecuritizedTrustsIncreaseDecreaseLoans" id="mtb_ConsolidationSecuritizedTrustsIncreaseDecreaseLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConsolidationSecuritizedTrustsIncreaseDecreaseLongTermBorrowings" id="mtb_ConsolidationSecuritizedTrustsIncreaseDecreaseLongTermBorrowings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="ConsumerLoansDue" id="mtb_ConsumerLoansDue" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConversionOfConvertibleSecuritiesDuringPeriodValue" id="mtb_ConversionOfConvertibleSecuritiesDuringPeriodValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="CreditRiskDerivativeMember" id="mtb_CreditRiskDerivativeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CriticizedAccrualMember" id="mtb_CriticizedAccrualMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DebtInstrumentMaturityYear" id="mtb_DebtInstrumentMaturityYear" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DebtInstrumentWeightedAverageBasisSpreadOnVariableRate" id="mtb_DebtInstrumentWeightedAverageBasisSpreadOnVariableRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DebtSecurityMember" id="mtb_DebtSecurityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DecreaseInAmortizedCostOfAvailableForSaleInvestmentSecuritiesDueToAmendedConsolidationRules" id="mtb_DecreaseInAmortizedCostOfAvailableForSaleInvestmentSecuritiesDueToAmendedConsolidationRules" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementAndOtherEmployeeBenefits" id="mtb_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementAndOtherEmployeeBenefits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxAssetsUnrealizedGainsOnTradingSecurities" id="mtb_DeferredTaxAssetsUnrealizedGainsOnTradingSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DefinedBenefitPlanChangeInBenefitObligationAndPlanAssetsTableTextBlock" id="mtb_DefinedBenefitPlanChangeInBenefitObligationAndPlanAssetsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DefinedBenefitPlanContributionsByEmployerToQualifiedBenefitPensionPlans" id="mtb_DefinedBenefitPlanContributionsByEmployerToQualifiedBenefitPensionPlans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DefinedBenefitPlanFairValueOfPlanAssetsDisclosureTableTextBlock" id="mtb_DefinedBenefitPlanFairValueOfPlanAssetsDisclosureTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DefinedBenefitPlanPeriodForApplyingUltimateHealthCareCostTrendRate" id="mtb_DefinedBenefitPlanPeriodForApplyingUltimateHealthCareCostTrendRate" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DefinedBenefitPlanSettlementsAndCurtailmentsBenefitObligation" id="mtb_DefinedBenefitPlanSettlementsAndCurtailmentsBenefitObligation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="DisclosureAllowanceForCreditLossesChangesInAllowanceForCreditLossesAbstract" id="mtb_DisclosureAllowanceForCreditLossesChangesInAllowanceForCreditLossesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DisclosureAllowanceForCreditLossesImpairedLoansAndLeasesAbstract" id="mtb_DisclosureAllowanceForCreditLossesImpairedLoansAndLeasesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DisclosureAllowanceForCreditLossesInterestIncomeRecognizedOnLoansAbstract" id="mtb_DisclosureAllowanceForCreditLossesInterestIncomeRecognizedOnLoansAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DisclosureAllowanceForCreditLossesRecordedInvestmentInLoansAndLeasesOnBasisOfCompanysImpairmentMethodologyAbstract" id="mtb_DisclosureAllowanceForCreditLossesRecordedInvestmentInLoansAndLeasesOnBasisOfCompanysImpairmentMethodologyAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LoansAcquiredInTransferImpairedAsPercentageOfAssets" id="mtb_LoansAcquiredInTransferImpairedAsPercentageOfAssets" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LoansAndLeasesReceivableConsumerInstallmentRevolvingAndHomeEquity" id="mtb_LoansAndLeasesReceivableConsumerInstallmentRevolvingAndHomeEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LoansAndLeasesReceivableNetOfDeferredIncomeByAccrualStatusTableTextBlock" id="mtb_LoansAndLeasesReceivableNetOfDeferredIncomeByAccrualStatusTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LoansAndLeasesReceivableTableTextBlock" id="mtb_LoansAndLeasesReceivableTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LoansReceivableGross" id="mtb_LoansReceivableGross" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="LongTermVariableRateAdvancesFromFhlbMember" id="mtb_LongTermVariableRateAdvancesFromFhlbMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MAndTBankMember" id="mtb_MAndTBankMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MAndTCapitalTrustFourFixedRatesDueTwoZeroSixEightMember" id="mtb_MAndTCapitalTrustFourFixedRatesDueTwoZeroSixEightMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MAndTCapitalTrustOneFixedRatesDueTwoZeroTwoSevenMember" id="mtb_MAndTCapitalTrustOneFixedRatesDueTwoZeroTwoSevenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="MAndTMember" id="mtb_MAndTMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumBorrowingCapacityUnderCreditFacilityWithUnaffiliatedCommercialBank" id="mtb_MaximumBorrowingCapacityUnderCreditFacilityWithUnaffiliatedCommercialBank" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" id="mtb_MaximumContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumCreditRiskForRecourseAssociatedWithLoansSoldUnderFederalNationalMortgageAssociationDelegatedUnderwritingAndServicingProgram" id="mtb_MaximumCreditRiskForRecourseAssociatedWithLoansSoldUnderFederalNationalMortgageAssociationDelegatedUnderwritingAndServicingProgram" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumEmployerContributionOnEmployeesQualifiedContribution" id="mtb_MaximumEmployerContributionOnEmployeesQualifiedContribution" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumExposureToLossOfInvestmentsInRealEstatePartnerships" id="mtb_MaximumExposureToLossOfInvestmentsInRealEstatePartnerships" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumPercentageOfCashReceivedOnSecuritizationOfResidentialMortgageLoansAllocatedToCapitalizedServicingRights" id="mtb_MaximumPercentageOfCashReceivedOnSecuritizationOfResidentialMortgageLoansAllocatedToCapitalizedServicingRights" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MinimumAlternativeTaxExpenseRecognizedForGainsOrLossesOnBankInvestmentSecurities" id="mtb_MinimumAlternativeTaxExpenseRecognizedForGainsOrLossesOnBankInvestmentSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MinimumContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" id="mtb_MinimumContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MinimumPercentageOfInterestIncomeAndOtherIncomeForSeparateDisclosure" id="mtb_MinimumPercentageOfInterestIncomeAndOtherIncomeForSeparateDisclosure" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MinorityInterestInPrivatelyHeldCompany" id="mtb_MinorityInterestInPrivatelyHeldCompany" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MortgageBackedSecuritiesIssuedByPrivateEnterpriseMember" id="mtb_MortgageBackedSecuritiesIssuedByPrivateEnterpriseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="MortgageBackedSecuritiesSecuritizedByPrivatelyHeldCompanyAvailableForSale" id="mtb_MortgageBackedSecuritiesSecuritizedByPrivatelyHeldCompanyAvailableForSale" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="MortgageRelatedCommitmentsToOriginateRealEstateLoansForSaleMember" id="mtb_MortgageRelatedCommitmentsToOriginateRealEstateLoansForSaleMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NamingRightsOfFootballStadiumPerYear" id="mtb_NamingRightsOfFootballStadiumPerYear" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="NetIncomeLossAvailableToCommonStockholdersBasicBeforeUnvestedStockBasedCompensationAwardsAdjustment" id="mtb_NetIncomeLossAvailableToCommonStockholdersBasicBeforeUnvestedStockBasedCompensationAwardsAdjustment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="NetInvestmentInDirectFinancingAndLeveragedTypeLeases" id="mtb_NetInvestmentInDirectFinancingAndLeveragedTypeLeases" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="NonTaxableGainRecordedInConnectionWithAcquisition" id="mtb_NonTaxableGainRecordedInConnectionWithAcquisition" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NotionalAmountOfForeignCurrencyAndOtherDerivativeInstrumentsNotDesignatedAsHedgingInstruments" id="mtb_NotionalAmountOfForeignCurrencyAndOtherDerivativeInstrumentsNotDesignatedAsHedgingInstruments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="NumberOfBankingOfficesOperated" id="mtb_NumberOfBankingOfficesOperated" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfIndependentPricingSourcesUsedToValuePrivatelyIssuedResidentialMortgageBackedSecuritiesValuedWithInternalModeling" id="mtb_NumberOfIndependentPricingSourcesUsedToValuePrivatelyIssuedResidentialMortgageBackedSecuritiesValuedWithInternalModeling" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfInvestmentSecurities" id="mtb_NumberOfInvestmentSecurities" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfStateAndLocalJurisdictionsWhereCompanyFilesIncomeTaxReturns" id="mtb_NumberOfStateAndLocalJurisdictionsWhereCompanyFilesIncomeTaxReturns" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="OtherAssetsForItsInvestmentInCommonSecuritiesRecognizedByCompanyOfVariousTrusts" id="mtb_OtherAssetsForItsInvestmentInCommonSecuritiesRecognizedByCompanyOfVariousTrusts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherCommercialConstructionMember" id="mtb_OtherCommercialConstructionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentsBeforeTax" id="mtb_OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentsBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedWithOttiInNetIncomeBeforeTax" id="mtb_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedWithOttiInNetIncomeBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="OtherComprehensiveIncomeReclassificationAdjustmentTransferOfAfsSecuritiesToHtmUnrealizedHoldingLossesBeforeTax" id="mtb_OtherComprehensiveIncomeReclassificationAdjustmentTransferOfAfsSecuritiesToHtmUnrealizedHoldingLossesBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
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  <element name="ScheduleOfAccountingPoliciesTable" id="mtb_ScheduleOfAccountingPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfAccumulatedOtherComprehensiveIncomeLossTable" id="mtb_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems" id="mtb_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesTable" id="mtb_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfAvailableForSaleSecuritiesAndHeldToMaturitySecuritiesLineItems" id="mtb_ScheduleOfAvailableForSaleSecuritiesAndHeldToMaturitySecuritiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfBorrowingsLineItems" id="mtb_ScheduleOfBorrowingsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfBorrowingsTable" id="mtb_ScheduleOfBorrowingsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfCapitalLeasesFutureMinimumPaymentsReceivableLineItems" id="mtb_ScheduleOfCapitalLeasesFutureMinimumPaymentsReceivableLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfCapitalLeasesFutureMinimumPaymentsReceivableTable" id="mtb_ScheduleOfCapitalLeasesFutureMinimumPaymentsReceivableTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfComponentsOfIncomeTaxExpenseBenefitLineItems" id="mtb_ScheduleOfComponentsOfIncomeTaxExpenseBenefitLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfComponentsOfIncomeTaxExpenseBenefitTable" id="mtb_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfEquityMethodInvestmentsJointVenturesLineItems" id="mtb_ScheduleOfEquityMethodInvestmentsJointVenturesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfIdentifiableIntangibleAssetsAcquiredAsPartOfBusinessCombinationLineItems" id="mtb_ScheduleOfIdentifiableIntangibleAssetsAcquiredAsPartOfBusinessCombinationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfIncomeTaxesLineItems" id="mtb_ScheduleOfIncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfIncomeTaxesTable" id="mtb_ScheduleOfIncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfIncomeTaxExpenseBenefitReconciliationTableTextBlock" id="mtb_ScheduleOfIncomeTaxExpenseBenefitReconciliationTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfLongTermDebtByMaturityTableTextBlock" id="mtb_ScheduleOfLongTermDebtByMaturityTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfMaturitiesOfLongTermDebtLineItems" id="mtb_ScheduleOfMaturitiesOfLongTermDebtLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfMaturitiesOfLongTermDebtTable" id="mtb_ScheduleOfMaturitiesOfLongTermDebtTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfStockOptionsLineItems" id="mtb_ScheduleOfStockOptionsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfStockOptionsTable" id="mtb_ScheduleOfStockOptionsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="SecuritiesIssuedByFinancialInstitutionsAndOtherEntitiesBackedByTrustPreferredSecuritiesAtCost" id="mtb_SecuritiesIssuedByFinancialInstitutionsAndOtherEntitiesBackedByTrustPreferredSecuritiesAtCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SecuritiesWithDisclosedRatingAmortizedCost" id="mtb_SecuritiesWithDisclosedRatingAmortizedCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SecuritiesWithDisclosedRatingEstimatedFairValue" id="mtb_SecuritiesWithDisclosedRatingEstimatedFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SecuritizationAndTransferOfResidentialMortgageLoansToQualifiedSpecialPurposeTrusts" id="mtb_SecuritizationAndTransferOfResidentialMortgageLoansToQualifiedSpecialPurposeTrusts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SegmentReportingInformationDepreciationAndOtherAmortization" id="mtb_SegmentReportingInformationDepreciationAndOtherAmortization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SegmentsNonInterestExpenseExcludingAmortizationAndDepreciation" id="mtb_SegmentsNonInterestExpenseExcludingAmortizationAndDepreciation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesCFixedRateCumulativePerpetualPreferredStockMember" id="mtb_SeriesCFixedRateCumulativePerpetualPreferredStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesDFixedRateNonCumulativePerpetualPreferredStockMember" id="mtb_SeriesDFixedRateNonCumulativePerpetualPreferredStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesDMember" id="mtb_SeriesDMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesFixedRateCumulativePerpetualPreferredStockMember" id="mtb_SeriesFixedRateCumulativePerpetualPreferredStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ServicingAssetAtAmortizedValueConsolidationOfLoanSecuritizationTrusts" id="mtb_ServicingAssetAtAmortizedValueConsolidationOfLoanSecuritizationTrusts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ServicingAssetAtAmortizedValueOriginations" id="mtb_ServicingAssetAtAmortizedValueOriginations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ServicingAssetsAtAmortizedValuePurchases" id="mtb_ServicingAssetsAtAmortizedValuePurchases" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ServicingRightsPurchasedFromPrivatelyHeldCompanyRelatedToResidentialMortgageLoan" id="mtb_ServicingRightsPurchasedFromPrivatelyHeldCompanyRelatedToResidentialMortgageLoan" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExpirationPeriod" id="mtb_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExpirationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageGrantDateFairValue" id="mtb_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageGrantDateFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssued" id="mtb_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardStockIssuedInPeriodWeightedAverageGrantDateFairValue" id="mtb_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockIssuedInPeriodWeightedAverageGrantDateFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SignificantAccountingPoliciesLineItems" id="mtb_SignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SignificantAccountingPoliciesTable" id="mtb_SignificantAccountingPoliciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="SignificantCommitmentsLineItems" id="mtb_SignificantCommitmentsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SignificantCommitmentsTable" id="mtb_SignificantCommitmentsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="SmallBalanceCommercialMortgageLoansMember" id="mtb_SmallBalanceCommercialMortgageLoansMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SouthernFinancialCapitalTrustThreeVariableRateDueTwoZeroThreeThreeMember" id="mtb_SouthernFinancialCapitalTrustThreeVariableRateDueTwoZeroThreeThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SouthernFinancialStatutoryTrustOneFixedRatesDueTwoZeroThreeZeroMember" id="mtb_SouthernFinancialStatutoryTrustOneFixedRatesDueTwoZeroThreeZeroMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockBasedCompensationPlansOther" id="mtb_StockBasedCompensationPlansOther" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroOneEightMember" id="mtb_SubordinatedNotesDueTwoZeroOneEightMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroOneSevenMember" id="mtb_SubordinatedNotesDueTwoZeroOneSevenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroOneThreeVariableRateCommencedInTwoZeroZeroEightMember" id="mtb_SubordinatedNotesDueTwoZeroOneThreeVariableRateCommencedInTwoZeroZeroEightMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroOneZeroMember" id="mtb_SubordinatedNotesDueTwoZeroOneZeroMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroTwoOneVariableRateCommencingTwoZeroOneSixMember" id="mtb_SubordinatedNotesDueTwoZeroTwoOneVariableRateCommencingTwoZeroOneSixMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubordinatedNotesDueTwoZeroTwoZeroVariableRateCommencingTwoZeroOneFiveMember" id="mtb_SubordinatedNotesDueTwoZeroTwoZeroVariableRateCommencingTwoZeroOneFiveMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfLeaseFinancingReceivablesTableTextBlock" id="mtb_SummaryOfLeaseFinancingReceivablesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfMergerRelatedExpensesAssociatedWithAcquisitionsAbstract" id="mtb_SummaryOfMergerRelatedExpensesAssociatedWithAcquisitionsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfMergerRelatedExpensesAssociatedWithAcquisitionsTableTextBlock" id="mtb_SummaryOfMergerRelatedExpensesAssociatedWithAcquisitionsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SupplementalPensionPlanMember" id="mtb_SupplementalPensionPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxableEquivalentAdjustment" id="mtb_TaxableEquivalentAdjustment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TenYearWarrantSeriesCPreferredMember" id="mtb_TenYearWarrantSeriesCPreferredMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TenYearWarrantSeriesDPreferredMember" id="mtb_TenYearWarrantSeriesDPreferredMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TenYearWarrantSeriesPreferredMember" id="mtb_TenYearWarrantSeriesPreferredMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TotalAssets" id="mtb_TotalAssets" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TreasuryStockPolicyTextBlock" id="mtb_TreasuryStockPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TrustPreferredSecuritiesMember" id="mtb_TrustPreferredSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnallocatedMember" id="mtb_UnallocatedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnfundedCommitmentsIncludedInCompanysMaximumExposureToLossOfInvestmentsInRealEstatePartnerships" id="mtb_UnfundedCommitmentsIncludedInCompanysMaximumExposureToLossOfInvestmentsInRealEstatePartnerships" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnrealizedLossesOnTrustPreferredSecuritiesIssuedByFinancialInstitutionsAndSecuritiesBackedByTrustPreferredSecurities" id="mtb_UnrealizedLossesOnTrustPreferredSecuritiesIssuedByFinancialInstitutionsAndSecuritiesBackedByTrustPreferredSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnrealizedLossesPertainToPrivatelyIssuedResidentialMortgageBackedSecurities" id="mtb_UnrealizedLossesPertainToPrivatelyIssuedResidentialMortgageBackedSecurities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnrecognizedIncomeTaxBenefitsMember" id="mtb_UnrecognizedIncomeTaxBenefitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnrecognizedTaxBenefitsAcquiredInBusinessCombination" id="mtb_UnrecognizedTaxBenefitsAcquiredInBusinessCombination" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnvestedStockBasedCompensationAwards" id="mtb_UnvestedStockBasedCompensationAwards" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ValueAddedInShareholdersEquityDueToAcquisition" id="mtb_ValueAddedInShareholdersEquityDueToAcquisition" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="VariableInterestEntitiesAndAssetSecuritizationsTextBlock" id="mtb_VariableInterestEntitiesAndAssetSecuritizationsTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAverageContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" id="mtb_WeightedAverageContractualInterestRatesOfLongTermAgreementsToRepurchaseSecurities" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAverageInterestRate" id="mtb_WeightedAverageInterestRate" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAverageOptionAdjustedSpreadOverMarketImpliedForwardLondonInterbankOfferedRatesUsedToDetermineDiscountRate" id="mtb_WeightedAverageOptionAdjustedSpreadOverMarketImpliedForwardLondonInterbankOfferedRatesUsedToDetermineDiscountRate" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAveragePercentageOfFairValueInputsCommitmentExpirations" id="mtb_WeightedAveragePercentageOfFairValueInputsCommitmentExpirations" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAveragePercentageOfFairValueInputsLossSeverity" id="mtb_WeightedAveragePercentageOfFairValueInputsLossSeverity" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAveragePercentageOfFairValueInputsProbabilityOfDefault" id="mtb_WeightedAveragePercentageOfFairValueInputsProbabilityOfDefault" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WeightedAverageRelianceOnInternalModelPricingInPercentage" id="mtb_WeightedAverageRelianceOnInternalModelPricingInPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WilmingtonDueTwoZeroOneEightMember" id="mtb_WilmingtonDueTwoZeroOneEightMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WilmingtonDueTwoZeroOneThreeMember" id="mtb_WilmingtonDueTwoZeroOneThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WilmingtonTrustCorporationAcquisitionMember" id="mtb_WilmingtonTrustCorporationAcquisitionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WilmingtonTrustNaMember" id="mtb_WilmingtonTrustNaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
