XML 18 R46.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Operating Units Other Segments (Details) (USD $) | 3 Months Ended | 0 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 | Oct. 02, 2013 | Dec. 31, 2014
Real Estate Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Real Estate commercial rental properties | 28 us-gaap_NumberOfRealEstateProperties / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Pledged assets | 30,000,000 us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | $ 31,000,000 us-gaap_PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember
ARI [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of equity ownership in subsidiary | 55.60%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_AriMember |  |
Viskase [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of equity ownership in subsidiary | 73.30%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_ViskaseMember |  |
Nnumber of Manufacturing Facilities | 9 iep_NnumberOfManufacturingFacilities / dei_LegalEntityAxis = iep_ViskaseMember |  |
Number of Distribution Centers | 9 iep_NumberOfDistributionCenters / dei_LegalEntityAxis = iep_ViskaseMember |  |
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage | 70.00%iep_DisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountriesPercentage / dei_LegalEntityAxis = iep_ViskaseMember |  |
ARL [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of equity ownership in subsidiary | 75.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_ArlMember |  |
ARL [Member] | Railcar Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of equity ownership in subsidiary |  | 75.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest / dei_LegalEntityAxis = iep_ArlMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
MASSACHUSETTS | Real Estate Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of units of residential housing in future development | 267 iep_NumberOfUnitsOfResidentialHousingInFutureDevelopment / iep_LocationOfOperationsStateOrCountryAxis = stpr_MA / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
FLORIDA | Real Estate Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of units of residential housing in future development | 1,327 iep_NumberOfUnitsOfResidentialHousingInFutureDevelopment / iep_LocationOfOperationsStateOrCountryAxis = stpr_FL / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |

X
- Definition Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage + References No definition available. + Details
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Namespace Prefix: | iep_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nnumber of Manufacturing Facilities + References No definition available. + Details
Name: | iep_NnumberOfManufacturingFacilities
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Distribution Centers + References No definition available. + Details
Name: | iep_NumberOfDistributionCenters
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Units of Residential Housing in Future Development + References No definition available. + Details
Name: | iep_NumberOfUnitsOfResidentialHousingInFutureDevelopment
Namespace Prefix: | iep_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=34720971&loc=SL6224234-111729 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | instant

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- Details
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Period Type: | duration

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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
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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- Details
Name: | iep_LocationOfOperationsStateOrCountryAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | iep_LocationOfOperationsStateOrCountryAxis=stpr_MA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iep_RealEstateSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |