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v2.4.1.9

Operating Units Energy Segment (Details) | 3 Months Ended
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Mar. 31, 2015
CVR Refining, LP [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 4.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_CvrRefiningLpMember
CVR Refining, LP [Member] | Energy Segment [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 66.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_CvrRefiningLpMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
CVR Partners, LP [Member] | Energy Segment [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 53.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_CvrPartnersLpMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
CVR Energy, Inc. [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 82.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_CvrEnergyIncMember
Nitrogen Fertilizer [Member] | Energy Segment [Member] |
Segment Reporting Information [Line Items] |
Ton-per-day ammonia unit facility | 1,225 iep_ProductionTonsOfAmmoniaPerDay / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = naics_ZZ325311 / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
Ton-per-day of Urea and Ammonium Nitrate unit facility | 3,000 iep_ProductionTonsOfUreaAndAmmoniumNitratePerDay / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = naics_ZZ325311 / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
Cubic feet of hydrogen per day gasifiation complex | 84,000,000 iep_ProductionCubicFeetOfHydrogenPerDay / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = naics_ZZ325311 / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
Coffeyville, Kansas [Member] | Petroleum [Member] | Energy Segment [Member] |
Segment Reporting Information [Line Items] |
Barrels per day | 115,000 iep_ProductionBarrelsOfOilPerDay / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = us-gaap_CrudeOilMember / iep_PropertyLocationAxis = iep_CoffeyvilleKansasMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember
Wynnewood, Oklahoma [Member] | Petroleum [Member] | Energy Segment [Member] |
Segment Reporting Information [Line Items] |
Barrels per day | 70,000 iep_ProductionBarrelsOfOilPerDay / us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis = us-gaap_CrudeOilMember / iep_PropertyLocationAxis = iep_WynnewoodOklahomaMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember

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- Definition Production, Barrels of Oil Per Day + References No definition available. + Details
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Namespace Prefix: | iep_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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- Definition Production, Cubic Feet of Hydrogen Per Day + References No definition available. + Details
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- Definition Production, Tons of Ammonia Per Day + References No definition available. + Details
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Balance Type: | na
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- Definition Production, Tons of Urea and Ammonium Nitrate Per Day + References No definition available. + Details
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Namespace Prefix: | iep_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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- Details
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Balance Type: | na
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- Definition The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=iep_CvrEnergyIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=iep_CvrPartnersLpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=iep_CvrRefiningLpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | iep_PropertyLocationAxis=iep_CoffeyvilleKansasMember
Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
Name: | iep_PropertyLocationAxis=iep_WynnewoodOklahomaMember
Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |