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  <xsd:import namespace="http://xbrl.sec.gov/country/2023" schemaLocation="https://xbrl.sec.gov/country/2023/country-2023.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2023" schemaLocation="https://xbrl.sec.gov/stpr/2023/stpr-2023.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd-sub/2023" schemaLocation="https://xbrl.sec.gov/ecd/2023/ecd-sub-2023.xsd" />
  <xsd:element name="FiniteLivedAndInfiniteLivedIntangibleAssetsBySegmentLineItems" id="iep_FiniteLivedAndInfiniteLivedIntangibleAssetsBySegmentLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherComprehensiveIncomeLossGainlossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax" id="iep_OtherComprehensiveIncomeLossGainlossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StarfireHoldingCorporationMember" id="iep_StarfireHoldingCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccountingPoliciesTable" id="iep_AccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccountingPoliciesLineItems" id="iep_AccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferedTaxLiabilitiesNetOfDeferredTaxAssets" id="iep_DeferedTaxLiabilitiesNetOfDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NetGainFromInvestmentActivitiesMember" id="iep_NetGainFromInvestmentActivitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IcahnEnterprisesHoldingsMember" id="iep_IcahnEnterprisesHoldingsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ReportingSegmentsMember" id="iep_ReportingSegmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerAggregateOwnershipInterestOfParentAndHoldingCompanySubsidiaries" id="iep_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerAggregateOwnershipInterestOfParentAndHoldingCompanySubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NotionalExposureOfDerivativesShortPosition" id="iep_NotionalExposureOfDerivativesShortPosition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsBySegmentTable" id="iep_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsBySegmentTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxAssetsLeaseArrangements" id="iep_DeferredTaxAssetsLeaseArrangements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherIncomeLossNotSpecifiedMember" id="iep_OtherIncomeLossNotSpecifiedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AffiliateOwnershipInParentCompanyGeneralPartner" id="iep_AffiliateOwnershipInParentCompanyGeneralPartner" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GoodwillAndIntangibleAssetsTable" id="iep_GoodwillAndIntangibleAssetsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AmericanEntertainmentPropertiesCorpMember" id="iep_AmericanEntertainmentPropertiesCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RealEstateSegmentMember" id="iep_RealEstateSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ViskaseMember" id="iep_ViskaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherAssetsAndDueFromCorrespondentBrokers" id="iep_OtherAssetsAndDueFromCorrespondentBrokers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OthercomprehensiveincomegainlossreclassificationadjustmentfromAOCIaftertax" id="iep_OthercomprehensiveincomegainlossreclassificationadjustmentfromAOCIaftertax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="MembersOrPartnersAxis" id="iep_MembersOrPartnersAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeTaxDisclosureDifferentBetweenBookBasisAndTaxBasisOfNetAssets" id="iep_IncomeTaxDisclosureDifferentBetweenBookBasisAndTaxBasisOfNetAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="DifferenceInBookBasisAndTaxBasisOfNetAssetsNotSubjectToIncomeTaxesTableTextBlock" id="iep_DifferenceInBookBasisAndTaxBasisOfNetAssetsNotSubjectToIncomeTaxesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PrincipalOwnersAndAffiliatesMember" id="iep_PrincipalOwnersAndAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancialStatementScheduleParentCompanyBalanceSheetTableTextBlock" id="iep_FinancialStatementScheduleParentCompanyBalanceSheetTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ConsolidatedVIEMember" id="iep_ConsolidatedVIEMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfEarningsPerLpUnitTable" id="iep_ScheduleOfEarningsPerLpUnitTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IndustrialMember" id="iep_IndustrialMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DefinedBenefitPlanPlanassetsmeasuredatfairvalue" id="iep_DefinedBenefitPlanPlanassetsmeasuredatfairvalue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ConsumerCyclicalMember" id="iep_ConsumerCyclicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentOfOtherIncomeLossNetLineItems" id="iep_ComponentOfOtherIncomeLossNetLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxLiabilitiesInvestmentInSubsidiaries" id="iep_DeferredTaxLiabilitiesInvestmentInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FinancialStatementScheduleParentCompanyDebtNoteTableTextBlock" id="iep_FinancialStatementScheduleParentCompanyDebtNoteTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FoodPackagingSegmentMember" id="iep_FoodPackagingSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherFinancingLeasesMember" id="iep_OtherFinancingLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HoldingCompanyMember" id="iep_HoldingCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancialStatementScheduleParentCompanyStatementOfOperationsTableTextBlock" id="iep_FinancialStatementScheduleParentCompanyStatementOfOperationsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CvrEnergyIncMember" id="iep_CvrEnergyIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxLiabilityInvestmentInPartnerships" id="iep_DeferredTaxLiabilityInvestmentInPartnerships" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AutomotiveSegmentMember" id="iep_AutomotiveSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CvrPartnersLpMember" id="iep_CvrPartnersLpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SegmentgeographicOtherMember" id="iep_SegmentgeographicOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PrimaryUnderlyingRiskAbstract" id="iep_PrimaryUnderlyingRiskAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PensionOtherPostRetirementBenefitsandEmployeeBenefitPlans.Abstract" id="iep_PensionOtherPostRetirementBenefitsandEmployeeBenefitPlans.Abstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GoodwillAndIntangibleAssetsLineItems" id="iep_GoodwillAndIntangibleAssetsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfFairValueOfDefinedBenefitPlanAssetTableTextBlock" id="iep_ScheduleOfFairValueOfDefinedBenefitPlanAssetTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TechnologyMember" id="iep_TechnologyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HomeFashionSegmentMember" id="iep_HomeFashionSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DerivativesNotDesignatedAsHedgingInstrumentsFairValueLineItems" id="iep_DerivativesNotDesignatedAsHedgingInstrumentsFairValueLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfFiniteLivedAndInfiniteLivedIntangibleAssetsTableTextBlock" id="iep_ScheduleOfFiniteLivedAndInfiniteLivedIntangibleAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationOfProfitsAndLossesInConsolidatedAffiliatedPartnershipsPolicyTextBlock" id="iep_AllocationOfProfitsAndLossesInConsolidatedAffiliatedPartnershipsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingLeaseTermAndDiscountRateTableTextBlock" id="iep_OperatingLeaseTermAndDiscountRateTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OwnershipPercentageByPrincipalOwner" id="iep_OwnershipPercentageByPrincipalOwner" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="IncomeTaxDisclosureBookBasisOfNetAssets" id="iep_IncomeTaxDisclosureBookBasisOfNetAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="A2025NotesMember" id="iep_A2025NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancialStatementScheduleParentCompanyStatementOfCashFlowsTableTextBlock" id="iep_FinancialStatementScheduleParentCompanyStatementOfCashFlowsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccumulatedOtherComprehensiveIncomeLossTextBlock" id="iep_AccumulatedOtherComprehensiveIncomeLossTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Othercomprehensiveincomelossforeigncurrencytranslationadjustmentsbeforereclassificationadjustmentafteroftax" id="iep_Othercomprehensiveincomelossforeigncurrencytranslationadjustmentsbeforereclassificationadjustmentafteroftax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PurchasesToCoverSecuritiesSoldNotYetPurchased" id="iep_PurchasesToCoverSecuritiesSoldNotYetPurchased" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NotionalExposureOfDerivativesLongPosition" id="iep_NotionalExposureOfDerivativesLongPosition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ConsumerNonCyclicalMember" id="iep_ConsumerNonCyclicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PartnerNameDomain" id="iep_PartnerNameDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeTaxDisclosureTaxBasisOfNetAssets" id="iep_IncomeTaxDisclosureTaxBasisOfNetAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="Lossonextinguishmentofdebtnoncash" id="iep_Lossonextinguishmentofdebtnoncash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="MachineryEquipmentAndFurnitureMember" id="iep_MachineryEquipmentAndFurnitureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasicMaterialsMember" id="iep_BasicMaterialsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentFundsMember" id="iep_InvestmentFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommonControlAcquisitionsAndDispositionsPolicyTextBlock" id="iep_CommonControlAcquisitionsAndDispositionsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FiniteLivedIntangibleAssetsGrossAndNetAbstract" id="iep_FiniteLivedIntangibleAssetsGrossAndNetAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentOfOtherIncomeLossNetNameDomain" id="iep_ComponentOfOtherIncomeLossNetNameDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PublicUnitholdersMember" id="iep_PublicUnitholdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EnergySegmentMember" id="iep_EnergySegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentSegmentMember" id="iep_InvestmentSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccruedExpensesAndOtherLiabilitiesMember" id="iep_AccruedExpensesAndOtherLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralPartnershipPolicyPolicyTextBlock" id="iep_GeneralPartnershipPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="New2024NotesMember" id="iep_New2024NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExpenseSharingAgreementMember" id="iep_ExpenseSharingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Revenuecurrentportionofremainingperformanceobligation" id="iep_Revenuecurrentportionofremainingperformanceobligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CvrRefiningLpMember" id="iep_CvrRefiningLpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubsidiaryIndemnityAgreementPensionFundingContingenciesAsResultOfBeingInControlledGroupDistributionLimitationNetWorthFloor" id="iep_SubsidiaryIndemnityAgreementPensionFundingContingenciesAsResultOfBeingInControlledGroupDistributionLimitationNetWorthFloor" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ComponentOfOtherIncomeLossNeTable" id="iep_ComponentOfOtherIncomeLossNeTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedCashMember" id="iep_RestrictedCashMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterestFairValue" id="iep_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterestFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="OtherSegmentsAndHoldingCompanyMember" id="iep_OtherSegmentsAndHoldingCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentOfOtherIncomeLossNetAxis" id="iep_ComponentOfOtherIncomeLossNetAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="HeldforsalepolicyPolicyTextBlock" id="iep_HeldforsalepolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionofBusinessTable" id="iep_DescriptionofBusinessTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OperatingAndFinanceLeaseLiabilityMaturitiesTableTextBlock" id="iep_OperatingAndFinanceLeaseLiabilityMaturitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="Accumulatedothercomprehensiveincomelossdefinedbenefitplansnetoftax" id="iep_Accumulatedothercomprehensiveincomelossdefinedbenefitplansnetoftax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="IcahnEnterprisesGPMember" id="iep_IcahnEnterprisesGPMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangesinAccumulatedOtherComprehensiveLossAbstract" id="iep_ChangesinAccumulatedOtherComprehensiveLossAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="A2026NotesMember" id="iep_A2026NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionofBusinessLineItems" id="iep_DescriptionofBusinessLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EarningsPerLpUnitLineItems" id="iep_EarningsPerLpUnitLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredTaxAssetTaxCredits" id="iep_DeferredTaxAssetTaxCredits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="A2027NotesMember" id="iep_A2027NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PaymentsForAdditionalInterestsInConsolidatedSubsidiaries" id="iep_PaymentsForAdditionalInterestsInConsolidatedSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="UnrealizedGainOnDerivativeContracts" id="iep_UnrealizedGainOnDerivativeContracts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="PaymentsForTurnaroundExpenditures" id="iep_PaymentsForTurnaroundExpenditures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PharmaSegmentMember" id="iep_PharmaSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncentivePlan2017Member" id="iep_IncentivePlan2017Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CommunicationMember" id="iep_CommunicationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetSales" id="iep_NetSales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CostOfGoodsSoldNew" id="iep_CostOfGoodsSoldNew" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NewNotes2027Member" id="iep_NewNotes2027Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NewNotesDue2025Member" id="iep_NewNotesDue2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NewNotesDue20259Member" id="iep_NewNotesDue20259Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AggregateCashDistributionsToDepositaryUnitHolders" id="iep_AggregateCashDistributionsToDepositaryUnitHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NoncashInvestmentSegmentContributionsFromNoncontrollingInterests" id="iep_NoncashInvestmentSegmentContributionsFromNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="UtilitiesMember" id="iep_UtilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BrettIcahnMember" id="iep_BrettIcahnMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfApprovedTherapies" id="iep_NumberOfApprovedTherapies" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfProductCandidateInActiveClinicalDevelopment" id="iep_NumberOfProductCandidateInActiveClinicalDevelopment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VivusMember" id="iep_VivusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentsFinancialInformationTableTextBlock" id="iep_InvestmentsFinancialInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FutureMaturitiesDueOnDebt" id="iep_FutureMaturitiesDueOnDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="PaymentToAcquireSecurities" id="iep_PaymentToAcquireSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromSaleOfSecurities" id="iep_ProceedsFromSaleOfSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DueFromBrokers" id="iep_DueFromBrokers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="RecordedRevenueWithRespectToDeferredRevenueOutstanding" id="iep_RecordedRevenueWithRespectToDeferredRevenueOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="OtherRevenueAndExpenseRecognitionPolicyTextBlock" id="iep_OtherRevenueAndExpenseRecognitionPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccumulatedOtherComprehensiveLossPolicyPolicyTextBlock" id="iep_AccumulatedOtherComprehensiveLossPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TurnaroundTermOfPlants" id="iep_TurnaroundTermOfPlants" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RefineriesMember" id="iep_RefineriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NitrogenFertilizerPlantsMember" id="iep_NitrogenFertilizerPlantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IcahnEnterprisesHoldingsLimitedPartnersMember" id="iep_IcahnEnterprisesHoldingsLimitedPartnersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="A2029NotesMember" id="iep_A2029NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentFundsTotalFairvalue" id="iep_InvestmentFundsTotalFairvalue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="HealthCaresMember" id="iep_HealthCaresMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AssetsLeasedMember" id="iep_AssetsLeasedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ComprehensiveIncomeAttributableToLimitedPartnerNetOfTax" id="iep_ComprehensiveIncomeAttributableToLimitedPartnerNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ComprehensiveIncomeAttributableToGeneralPartnerNetOfTax" id="iep_ComprehensiveIncomeAttributableToGeneralPartnerNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StatementOfCashFlowPolicyTextBlock" id="iep_StatementOfCashFlowPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OtherOperatingRevenue" id="iep_OtherOperatingRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncomeLossFromNonConsolidatedAffiliatesMember" id="iep_IncomeLossFromNonConsolidatedAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GainLossOnDebtExtinguishmentMember" id="iep_GainLossOnDebtExtinguishmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RenewableFuelStandardObligation" id="iep_RenewableFuelStandardObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TenderOfferUnitholdersDistributionThresholdTradingDays" id="iep_TenderOfferUnitholdersDistributionThresholdTradingDays" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CashHeldAtConsolidatedAffiliatedPartnershipsMember" id="iep_CashHeldAtConsolidatedAffiliatedPartnershipsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PartnershipContributionsReceivable" id="iep_PartnershipContributionsReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LegalSettlementLossMember" id="iep_LegalSettlementLossMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentSegmentDistributions" id="iep_InvestmentSegmentDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CallOptionLawsuitsMember" id="iep_CallOptionLawsuitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="VariableInterestEntitiesAssetsUnderManagementPercentage" id="iep_VariableInterestEntitiesAssetsUnderManagementPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ProceedsFromPaymentsForInvestmentSegmentDistributions" id="iep_ProceedsFromPaymentsForInvestmentSegmentDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PortfolioManagerTerm" id="iep_PortfolioManagerTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfPortfolios" id="iep_NumberOfPortfolios" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfLumpSumPaymentsAfterTerm" id="iep_NumberOfLumpSumPaymentsAfterTerm" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FinancialsMember" id="iep_FinancialsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredTaxAssetsInvestmentInPartnerships" id="iep_DeferredTaxAssetsInvestmentInPartnerships" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ViskaseAndAcfIndustriesLlcMember" id="iep_ViskaseAndAcfIndustriesLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RinExpenseBenefit" id="iep_RinExpenseBenefit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MinimumCarbonDioxideSupplyThresholdFeePerYear" id="iep_MinimumCarbonDioxideSupplyThresholdFeePerYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MinimumCarbonDioxideSupplyMaximumFeePayable" id="iep_MinimumCarbonDioxideSupplyMaximumFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SubsidiaryBankruptcyAndDeconsolidationAbstract" id="iep_SubsidiaryBankruptcyAndDeconsolidationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubsidiaryBankruptcyAndDeconsolidation" id="iep_SubsidiaryBankruptcyAndDeconsolidation" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SubsidiaryDeconsolidationNonCashCharges" id="iep_SubsidiaryDeconsolidationNonCashCharges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueOfConsiderationReceived" id="iep_FairValueOfConsiderationReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebtorInPossessionFinancingMember" id="iep_DebtorInPossessionFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DipCreditAgreementAuthorizedAmount" id="iep_DipCreditAgreementAuthorizedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeconsolidationOfInvestmentInAutoPlusMember" id="iep_DeconsolidationOfInvestmentInAutoPlusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AutoPlusMember" id="iep_AutoPlusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ImpairmentOnRelatedPartyNoteReceivableNet" id="iep_ImpairmentOnRelatedPartyNoteReceivableNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RepurchaseProgramAuthorizedAmountFixedRateSeniorUnsecuredNotes" id="iep_RepurchaseProgramAuthorizedAmountFixedRateSeniorUnsecuredNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RepurchaseProgramAuthorizedAmountDepositaryUnits" id="iep_RepurchaseProgramAuthorizedAmountDepositaryUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SubsidiaryBankruptcyAndDeconsolidationNumberOfSalesOfAutoPlusAssets" id="iep_SubsidiaryBankruptcyAndDeconsolidationNumberOfSalesOfAutoPlusAssets" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SubsidiaryBankruptcyAndDeconsolidationNumberOfSalesOfAutoPlusAssetsNumberOfBidders" id="iep_SubsidiaryBankruptcyAndDeconsolidationNumberOfSalesOfAutoPlusAssetsNumberOfBidders" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RelatedPartyNotesReceivableNetAbstract" id="iep_RelatedPartyNotesReceivableNetAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RelatedPartyNotesReceivableNetTextBlock" id="iep_RelatedPartyNotesReceivableNetTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RelatedPartyNotesReceivableGross" id="iep_RelatedPartyNotesReceivableGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AllowanceForExpectedCreditLossesOnRelatedPartyNotesReceivable" id="iep_AllowanceForExpectedCreditLossesOnRelatedPartyNotesReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AllowanceForExpectedCreditLossesOnRelatedPartyNotesReceivableAbstract" id="iep_AllowanceForExpectedCreditLossesOnRelatedPartyNotesReceivableAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExpectedCreditLossesOnRelatedPartyNotesReceivableWriteOffs" id="iep_ExpectedCreditLossesOnRelatedPartyNotesReceivableWriteOffs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfRelatedPartyNotesReceivableAndRelatedAllowanceForExpectedCreditLossesTableTextBlock" id="iep_ScheduleOfRelatedPartyNotesReceivableAndRelatedAllowanceForExpectedCreditLossesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SubsidiaryBankruptcyAndDeconsolidationCreditBidForPortionOfItsSeniorSecuredDebtorInPossessionLoan" id="iep_SubsidiaryBankruptcyAndDeconsolidationCreditBidForPortionOfItsSeniorSecuredDebtorInPossessionLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AepPlcMember" id="iep_AepPlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RelatedPartyTransactionAmountRedeemedInAccordanceWithManagerAgreement" id="iep_RelatedPartyTransactionAmountRedeemedInAccordanceWithManagerAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CommoditySwapPositionsMember" id="iep_CommoditySwapPositionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommunicationDebtSecuritiesMember" id="iep_CommunicationDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MaterialsDebtSecuritiesMember" id="iep_MaterialsDebtSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AutoPlusAuctionTransactionMember" id="iep_AutoPlusAuctionTransactionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="A9.75Percent2029NotesMember" id="iep_A9.75Percent2029NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeTaxReconciliationUncertainTaxPositions" id="iep_IncomeTaxReconciliationUncertainTaxPositions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncomeTaxReconciliationDeconsolidation" id="iep_IncomeTaxReconciliationDeconsolidation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncomeTaxReconciliationTaxGainOnBooks" id="iep_IncomeTaxReconciliationTaxGainOnBooks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ReservedFundsMember" id="iep_ReservedFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RevenueFromNetSalesAndOtherOperations" id="iep_RevenueFromNetSalesAndOtherOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfCountryClubsOperated" id="iep_NumberOfCountryClubsOperated" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfProductCandidatesInEarlyStageDevelopment" id="iep_NumberOfProductCandidatesInEarlyStageDevelopment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="RepurchaseProgramAggregateAmountSeniorNotesRepurchased" id="iep_RepurchaseProgramAggregateAmountSeniorNotesRepurchased" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="Notes9.000PercentageDue2030Member" id="iep_Notes9.000PercentageDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DividendExpenses" id="iep_DividendExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OpenMarketSaleAgreementEnteredIntoNovember2022Member" id="iep_OpenMarketSaleAgreementEnteredIntoNovember2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PartnersCapitalAccountMaximumSaleOfUnitsAtMarketOffering" id="iep_PartnersCapitalAccountMaximumSaleOfUnitsAtMarketOffering" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OpenMarketSaleAgreementEnteredIntoAugust2024Member" id="iep_OpenMarketSaleAgreementEnteredIntoAugust2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PotentialAggregateSalesProceedsFromEquityOffering" id="iep_PotentialAggregateSalesProceedsFromEquityOffering" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="Unregistered9.75PercentSeniorNotesDue2029Member" id="iep_Unregistered9.75PercentSeniorNotesDue2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Unregistered9PercentSeniorNotesDue2030Member" id="iep_Unregistered9PercentSeniorNotesDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PaymentsForRepurchaseOfSeniorUnsecuredDebt" id="iep_PaymentsForRepurchaseOfSeniorUnsecuredDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LossContingencySettlementAgreementCivilPenaltyAmount" id="iep_LossContingencySettlementAgreementCivilPenaltyAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CarlCIcahnMember" id="iep_CarlCIcahnMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LesseeRightOfUseAssetsAndLiabilitiesTableTextBlock" id="iep_LesseeRightOfUseAssetsAndLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InvestmentInFundsMember" id="iep_InvestmentInFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentSegmentContributions" id="iep_InvestmentSegmentContributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AutomotivePartsMember" id="iep_AutomotivePartsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NitrogenFertilizerProductsMember" id="iep_NitrogenFertilizerProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentsMeasuredAtFairValue" id="iep_InvestmentsMeasuredAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CostOfOtherRevenueFromOperations" id="iep_CostOfOtherRevenueFromOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AutomotiveServicesMember" id="iep_AutomotiveServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CybersecurityRiskManagementStrategyAndGovernanceAbstract" id="iep_CybersecurityRiskManagementStrategyAndGovernanceAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" id="iep_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementProcessesIntegratedFlag" id="iep_CybersecurityRiskManagementProcessesIntegratedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementProcessesIntegratedTextBlock" id="iep_CybersecurityRiskManagementProcessesIntegratedTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementThirdPartyEngagedFlag" id="iep_CybersecurityRiskManagementThirdPartyEngagedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag" id="iep_CybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag" id="iep_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskBoardOfDirectorsOversightTextBlock" id="iep_CybersecurityRiskBoardOfDirectorsOversightTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" id="iep_CybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskProcessForInformingBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" id="iep_CybersecurityRiskProcessForInformingBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskRoleOfManagementTextBlock" id="iep_CybersecurityRiskRoleOfManagementTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag" id="iep_CybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock" id="iep_CybersecurityRiskManagementPositionsOrCommitteesResponsibleTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock" id="iep_CybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock" id="iep_CybersecurityRiskProcessForInformingManagementOrCommitteesResponsibleTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag" id="iep_CybersecurityRiskManagementPositionsOrCommitteesResponsibleReportToBoardFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="A10.00Percent2029NotesMember" id="iep_A10.00Percent2029NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="A2030NotesMember" id="iep_A2030NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RealEstateAndAutomotiveSegmentsMember" id="iep_RealEstateAndAutomotiveSegmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AmountRedeemedFromInvestmentFunds" id="iep_AmountRedeemedFromInvestmentFunds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DipCreditAgreementLoanedAmount" id="iep_DipCreditAgreementLoanedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EstimatedProceedsFromRepaymentOfNotesReceivable" id="iep_EstimatedProceedsFromRepaymentOfNotesReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NotesReceivableRelatedPartiesWriteOff" id="iep_NotesReceivableRelatedPartiesWriteOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingPeriod" id="iep_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LessorOperatingLeasePaymentToBeReceivedYearSix" id="iep_LessorOperatingLeasePaymentToBeReceivedYearSix" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RestrictedDepositaryUnitsMember" id="iep_RestrictedDepositaryUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="XeroxMember" id="iep_XeroxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnrealizedGainOnEquityMethodInvestmentsUnderFairValueOption" id="iep_UnrealizedGainOnEquityMethodInvestmentsUnderFairValueOption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfLawSuitsUnderCallOptionCoverageCase" id="iep_NumberOfLawSuitsUnderCallOptionCoverageCase" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfSharesAcquired" id="iep_NumberOfSharesAcquired" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MaximumNumberOfSharesToBeAcquired" id="iep_MaximumNumberOfSharesToBeAcquired" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="GainOnSaleOfEquityInvestmentMember" id="iep_GainOnSaleOfEquityInvestmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GainOnLeaseTerminationMember" id="iep_GainOnLeaseTerminationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RenewableProductsMember" id="iep_RenewableProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfQuarterlyDistributions" id="iep_NumberOfQuarterlyDistributions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Notes10.000PercentageDue2029Member" id="iep_Notes10.000PercentageDue2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LineOfCreditFacilityIncrementalBorrowingCapacity" id="iep_LineOfCreditFacilityIncrementalBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SeniorSecuredTermLoanMember" id="iep_SeniorSecuredTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecuredOvernightFinancingRateSofrMember" id="iep_SecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProceedsFromDebtRedemptionHeldInTreasury" id="iep_ProceedsFromDebtRedemptionHeldInTreasury" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="Cvr2028NotesMember" id="iep_Cvr2028NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="A8.50SeniorUnsecuredNotesDue2029Member" id="iep_A8.50SeniorUnsecuredNotesDue2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ViskaseCreditFacilityMember" id="iep_ViskaseCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TermLoanMember" id="iep_TermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CVRRefiningCreditFacilityMember" id="iep_CVRRefiningCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CvrPartner2028NotesMember" id="iep_CvrPartner2028NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SwinglineLoanMember" id="iep_SwinglineLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentOfOutstandingSharesOwned" id="iep_PercentOfOutstandingSharesOwned" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
</xsd:schema>
