XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Description of Business and Basis of Presentation (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015
Entity Information [Line Items] |  |
Debt | $ 12,530 | $ 12,594
Fair value of long-term debt | 12,100 | 12,200
Cash held at consolidated affiliated partnerships and restricted cash | 751 | 1,282
Restricted cash [Member] |  |
Entity Information [Line Items] |  |
Cash held at consolidated affiliated partnerships and restricted cash | $ 564 | 966
Icahn Enterprises G.P. [Member] |  |
Entity Information [Line Items] |  |
General partner ownership percentage in Icahn Enterprises | 1.00% |
General partner ownership interest in Icahn Enterprises Holdings | 1.00% |
Aggregate general partner ownership interest of parent and operating subsidiary | 1.99% |
Mr. Icahn and his affiliates [Member] |  |
Entity Information [Line Items] |  |
Affiliate ownership interest in Icahn Enterprises | 89.10% |
Icahn Enterprises Holdings [Member] |  |
Entity Information [Line Items] |  |
Percentage of equity ownership in operating subsidiary | 99.00% |
Debt | $ 12,530 | 12,594
Cash held at consolidated affiliated partnerships and restricted cash | 751 | 1,282
Debt [Member] |  |
Entity Information [Line Items] |  |
Affect on prior year financial statements from adopting new accounting principle |  | 39
Energy Segment [Member] |  |
Entity Information [Line Items] |  |
Debt | 668 | 667
Cash held at consolidated affiliated partnerships and restricted cash | 0 | 0
Energy Segment [Member] | Cash and Cash Equivalents [Member] |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 198 | 237
Energy Segment [Member] | Property, Plant and Equipment [Member] |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 2,667 | 2,674
Energy Segment [Member] | Inventories |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 259 | 290
Energy Segment [Member] | Goodwill |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 0 | 574
Energy Segment [Member] | Intangible assets, net |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 332 | 337
Energy Segment [Member] | Other assets |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 78 | 102
Energy Segment [Member] | Accounts payable, accrued expenses and other liabilities [Member] |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities | 335 | 333
Energy Segment [Member] | Debt [Member] |  |
Entity Information [Line Items] |  |
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities | $ 668 | $ 667

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: | dei_EntityInformationLineItems
Namespace Prefix: | dei_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Aggregate Ownership interest of Parent and Holding Company Subsidiaries + References No definition available. + Details
Name: | iep_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerAggregateOwnershipInterestOfParentAndHoldingCompanySubsidiaries
Namespace Prefix: | iep_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Subsidiary of Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest + References No definition available. + Details
Name: | iep_SubsidiaryOfLimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix: | iep_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units or percentage investment held by one or more members or limited partners of the LLC or LP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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
- Definition The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=64801991&loc=d3e5710-111685 + Details
Name: | us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=64801991&loc=d3e5710-111685 + Details
Name: | us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=iep_RestrictedCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iep_MembersOrPartnersAxis=iep_IcahnEnterprisesGPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iep_MembersOrPartnersAxis=iep_PrincipalOwnersAndAffiliatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_DebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_InventoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_GoodwillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=iep_IntangibleassetsnetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=iep_AccountspayableaccruedexpensesandotherliabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |