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  <xs:element id="mar_CashFlowLesseeAbstract" abstract="true" name="CashFlowLesseeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mar_SeriesMMNotesMember" abstract="true" name="SeriesMMNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mar_SeriesPSeniorNotesMember" abstract="true" name="SeriesPSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_CityExpressBrandPortfolioMember" abstract="true" name="CityExpressBrandPortfolioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_DeferredTaxAssetsLeasingArrangements" abstract="false" name="DeferredTaxAssetsLeasingArrangements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_CostOfRevenueNetOfTax" abstract="false" name="CostOfRevenueNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_LesseeOperatingAndFinanceLeaseNumberOfOptionsForRenewal" abstract="false" name="LesseeOperatingAndFinanceLeaseNumberOfOptionsForRenewal" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="mar_PaymentsForAssetAcquisitions" abstract="false" name="PaymentsForAssetAcquisitions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_AvendraLLCMember" abstract="true" name="AvendraLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_ProceedsFromRepaymentsOfCommercialPaperAndLongTermLinesOfCredit" abstract="false" name="ProceedsFromRepaymentsOfCommercialPaperAndLongTermLinesOfCredit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_CommitmentsAndContingenciesDisclosureLineItems" abstract="true" name="CommitmentsAndContingenciesDisclosureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mar_OtherComprehensiveIncomeLossOtherAdjustmentsAfterReclassificationAndTaxParent" abstract="false" name="OtherComprehensiveIncomeLossOtherAdjustmentsAfterReclassificationAndTaxParent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_EffectiveIncomeTaxRateReconciliationIntellectualPropertyRestructuringPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationIntellectualPropertyRestructuringPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="mar_SeriesVNotesMember" abstract="true" name="SeriesVNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SignificantAccountingPoliciesTable" abstract="true" name="SignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="mar_SeriesEENotesMember" abstract="true" name="SeriesEENotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_DefinedContributionPlanPolicyPolicyTextBlock" abstract="false" name="DefinedContributionPlanPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="mar_SeriesHHNotesMember" abstract="true" name="SeriesHHNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SeriesFFNotesMember" abstract="true" name="SeriesFFNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_PaymentsForLoanAdvances" abstract="false" name="PaymentsForLoanAdvances" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_FeeServiceMember" abstract="true" name="FeeServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SeriesRNotesMember" abstract="true" name="SeriesRNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_InternationalSegmentMember" abstract="true" name="InternationalSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SeriesZNotesMember" abstract="true" name="SeriesZNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SeriesJJNotesMember" abstract="true" name="SeriesJJNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_LossContingenciesBySecondaryNatureOfContingencyDomain" abstract="true" name="LossContingenciesBySecondaryNatureOfContingencyDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SelfInsurancePolicyTextBlock" abstract="false" name="SelfInsurancePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="mar_IncreaseDecreaseinCapitalizedContractCostsNet" abstract="false" name="IncreaseDecreaseinCapitalizedContractCostsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_SheratonGrandChicagoHotelMember" abstract="true" name="SheratonGrandChicagoHotelMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_GuaranteeObligationTerm" abstract="false" name="GuaranteeObligationTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="mar_SeriesXNotesMember" abstract="true" name="SeriesXNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_SeriesLLAndMMNotesMember" abstract="true" name="SeriesLLAndMMNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="mar_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalNetOfTax" abstract="false" name="DisposalGroupNotDiscontinuedOperationGainLossOnDisposalNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mar_DeferredTaxAssetsTaxCreditCarryforwardsNotSubjectToExpiration" abstract="false" name="DeferredTaxAssetsTaxCreditCarryforwardsNotSubjectToExpiration" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_SeriesCCNotesMember" abstract="true" name="SeriesCCNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_AssetsHeldForSalePolicyTextBlock" abstract="false" name="AssetsHeldForSalePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="mar_SuretyBonds" abstract="false" name="SuretyBonds" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_ValuationOfIntangiblesAndLongLivedAssetsPolicyTextBlock" abstract="false" name="ValuationOfIntangiblesAndLongLivedAssetsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="mar_PurchaseObligationToBePaidAfterYearThree" abstract="false" name="PurchaseObligationToBePaidAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_SharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognized" abstract="false" name="SharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognized" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_JWMFamilyEnterpriseL.P.Member" abstract="true" name="JWMFamilyEnterpriseL.P.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_IncomeStatementDataResultingFromRelatedPartyTransactionsTableTextBlock" abstract="false" name="IncomeStatementDataResultingFromRelatedPartyTransactionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="mar_CostsIncurredtoObtainContractsMember" abstract="true" name="CostsIncurredtoObtainContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_DepreciationAmortizationandOtherExcludingCapitalizedContractCostAmortization" abstract="false" name="DepreciationAmortizationandOtherExcludingCapitalizedContractCostAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_RightofUseAssetObtainedinExchangeforLeaseLiabilityAbstract" abstract="true" name="RightofUseAssetObtainedinExchangeforLeaseLiabilityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="mar_NoncashIncomeTaxExpense" abstract="false" name="NoncashIncomeTaxExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_SeriesIINotesMember" abstract="true" name="SeriesIINotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_OperatingLossCarryforwardsTaxableIncomeReduction" abstract="false" name="OperatingLossCarryforwardsTaxableIncomeReduction" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="mar_ContractServicesExcludingLoyaltyProgramMember" abstract="true" name="ContractServicesExcludingLoyaltyProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="mar_ContractAcquisitionCostsAndOtherMember" abstract="true" name="ContractAcquisitionCostsAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
