XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Operating Units Other Segments (Details) | 3 Months Ended
--- | ---
Mar. 31, 2016 distribution_centers real_estate_properties real_estate_property_units manufacturing_facilities
Real Estate Segment [Member] |
Segment Reporting Information [Line Items] |
Number of Real Estate commercial rental properties | real_estate_properties | 15
Ferrous Resources [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 77.20%
ARI [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 60.70%
Viskase [Member] |
Segment Reporting Information [Line Items] |
Percentage of equity ownership in subsidiary | 73.30%
Number of Manufacturing Facilities | manufacturing_facilities | 9
Number of Distribution Centers | distribution_centers | 6
Net sales from customers located outside the U.S. | 69.00%
MASSACHUSETTS | Real Estate Segment [Member] |
Segment Reporting Information [Line Items] |
Number of units of residential housing in future development | 239
FLORIDA | Real Estate Segment [Member] |
Segment Reporting Information [Line Items] |
Number of units of residential housing in future development | 1,128

X
- Definition Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage + References No definition available. + Details
Name: | iep_DisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountriesPercentage
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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611443-123010 + Details
Name: | us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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