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  <xsd:element name="ExpenseSharingAgreementMember" id="iep_ExpenseSharingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <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="DescriptionofBusinessTable" id="iep_DescriptionofBusinessTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" 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="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="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="AggregateCashDistributionsToDepositaryUnitHolders" id="iep_AggregateCashDistributionsToDepositaryUnitHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" 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="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="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="RevenueCurrentPortionOfRemainingPerformanceObligations" id="iep_RevenueCurrentPortionOfRemainingPerformanceObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <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="TemporaryEquityReversalOfDistributionPayable" id="iep_TemporaryEquityReversalOfDistributionPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <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="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="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="NoncashInvestmentSegmentDistributionsToNoncontrollingInterests" id="iep_NoncashInvestmentSegmentDistributionsToNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <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="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="LossContingencyClassActionFiledNumber" id="iep_LossContingencyClassActionFiledNumber" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CarlCIcahnMember" id="iep_CarlCIcahnMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LineOfCreditFacilityAdditionalBorrowingCapacity" id="iep_LineOfCreditFacilityAdditionalBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <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:schema>
