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v2.4.1.9

Net Income Per LP Unit (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 0 Months Ended
--- | --- | --- | ---
Feb. 20, 2015 | Mar. 31, 2015 | Mar. 31, 2014 | Apr. 22, 2015 | May 06, 2015
Earnings Per LP Unit [Line Items] |  |  |  |  |
Net income (loss) attributable to Icahn Enterprises |  | $ 161 us-gaap_NetIncomeLoss | $ (29)us-gaap_NetIncomeLoss |  |
Net income (loss) attributable to Icahn Enterprises allocable to limited partners (98.01% allocation) |  | 158 us-gaap_NetIncomeLossAllocatedToLimitedPartners | (28)us-gaap_NetIncomeLossAllocatedToLimitedPartners |  |
Basic income (loss) per LP unit |  | $ 1.28 us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax | $ (0.24)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax |  |
Basic weighted average LP units outstanding |  | 123,000,000 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding | 117,000,000 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding |  |
Dilutive effect of unit distribution declared (income) |  | 0 iep_DilutiveSecuritiesEffectOnEarningsPerUnitFromDistributionOfDepositaryUnits |  |  |
Dilutive effect of unit distribution declared (units) |  | 1,000,000 iep_AdditionalSharesIncludedInCalculationOfDilutedEpsAsResultOfPotentiallyDilutiveEffectOfUnitDistribution |  |  |
Diluted income (loss) per LP unit |  | $ 1.27 us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted | $ (0.24)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted |  |
Diluted weighted average LP units outstanding |  | 124,000,000 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstandingDiluted | 117,000,000 us-gaap_WeightedAverageLimitedPartnershipUnitsOutstandingDiluted |  |
Distribution declared per depositary unit | $ 1.50 us-gaap_CommonStockDividendsPerShareDeclared |  |  |  |
Depositary units [Member] |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |
Distribution payable |  | $ 188 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_CapitalUnitsByClassAxis = us-gaap_CommonStockMember |  |  |
Mr. Icahn and his affiliates [Member] |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |
Affiliate ownership interest in Icahn Enterprises |  | 88.40%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest / iep_MembersOrPartnersAxis = iep_PrincipalOwnersAndAffiliatesMember |  |  |
Unit distribution [Member] | Depositary units [Member] |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |
Distribution Made to Limited Partner, Unit Distribution |  |  |  | 1,713,935 us-gaap_DistributionMadeToLimitedPartnerUnitDistribution / us-gaap_CapitalUnitsByClassAxis = us-gaap_CommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_UnitDistributionMember |
Ownership percentage [Member] | Mr. Icahn and his affiliates [Member] |  |  |  |  |
Earnings Per LP Unit [Line Items] |  |  |  |  |
Affiliate ownership interest in Icahn Enterprises |  |  |  |  | 88.50%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest / iep_MembersOrPartnersAxis = iep_PrincipalOwnersAndAffiliatesMember / us-gaap_SubsequentEventTypeAxis = iep_OwnershippercentageMember

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