XML 78 R65.htm IDEA: XBRL DOCUMENT v2.4.1.9

Financial Instruments Investment Segment and Holding Company Narrative (Details) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Non-cash investment segment contribution	$ 0iep_Noncashinvestmentsegmentcontribution		$ 185,000,000iep_Noncashinvestmentsegmentcontribution	$ 0iep_Noncashinvestmentsegmentcontribution
Cash collateral posted for derivative positions	1,248,000,000us-gaap_CollateralAlreadyPostedAggregateFairValue		255,000,000us-gaap_CollateralAlreadyPostedAggregateFairValue
Credit default swaps(1)
Derivative [Line Items]
Short Notional Exposure	1,493,000,000iep_NotionalExposureOfDerivativesShortPosition / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CreditDefaultSwapMember	[1]	0iep_NotionalExposureOfDerivativesShortPosition / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CreditDefaultSwapMember
Investment Segment [Member] | Investment Funds [Member]
Derivative [Line Items]
Open Option Contracts Written, Covered Put Options on Existing Short Positions	2,400,000,000iep_OpenOptionContractsWrittenCoveredPutOptionsOnExistingShortPositions / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember		8,000,000,000iep_OpenOptionContractsWrittenCoveredPutOptionsOnExistingShortPositions / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Fair value of derivative instruments with credit-risk related contingent features in a liability position	614,000,000us-gaap_CreditRiskDerivativeLiabilitiesAtFairValue / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember		639,000,000us-gaap_CreditRiskDerivativeLiabilitiesAtFairValue / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Open Option Contract Written, Potential Payment Amount	2,500,000,000iep_OpenOptionContractWrittenPotentialPaymentAmount / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember		8,000,000,000iep_OpenOptionContractWrittenPotentialPaymentAmount / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Investment Segment [Member] | Investment Funds [Member] | Total Return Swap [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Derivatives			14,000,000us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_TotalReturnSwapMember / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Investment Segment [Member] | Investment Funds [Member] | Put Option [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Derivatives	(1,000,000)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_PutOptionMember / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember		131,000,000us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_PutOptionMember / dei_LegalEntityAxis = iep_InvestmentFundsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Holding Company [Member] | Investment Segment [Member]
Derivative [Line Items]
Non-cash Investment segment contribution (derivative liability shares transferred)			9.7iep_NoncashInvestmentsegmentcontributionderivativeliabilitysharestransferred / us-gaap_CounterpartyNameAxis = iep_HoldingCompanyMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Non-cash investment segment contribution			234,000,000iep_Noncashinvestmentsegmentcontribution / us-gaap_CounterpartyNameAxis = iep_HoldingCompanyMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Koala [Member] | Investment Segment [Member]
Derivative [Line Items]
Non-cash Investment segment contribution (derivative liability shares transferred)			7.7iep_NoncashInvestmentsegmentcontributionderivativeliabilitysharestransferred / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iep_KoalaMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
Non-cash investment segment contribution			$ 185,000,000iep_Noncashinvestmentsegmentcontribution / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iep_KoalaMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember
[1] The short notional amount on our credit default swap positions is approximately $9.3 billion as of December 31, 2014. However, because credit spreads cannot compress below zero, our downside short notional exposure to loss is approximately $1.5 billion.

X

- Definition

Non-cash investment segment contribution

+ References

No definition available.

+ Details

Name:	iep_Noncashinvestmentsegmentcontribution
Namespace Prefix:	iep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Non-cash Investment segment contribution (derivative liability shares transferred)

+ References

No definition available.

+ Details

Name:	iep_NoncashInvestmentsegmentcontributionderivativeliabilitysharestransferred
Namespace Prefix:	iep_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Notional Exposure of Derivatives, Short Position

+ References

No definition available.

+ Details

Name:	iep_NotionalExposureOfDerivativesShortPosition
Namespace Prefix:	iep_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Open Option Contracts Written, Covered Put Options on Existing Short Positions

+ References

No definition available.

+ Details

Name:	iep_OpenOptionContractsWrittenCoveredPutOptionsOnExistingShortPositions
Namespace Prefix:	iep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The maximum payout of the open option contracts written for the investment.

+ References

No definition available.

+ Details

Name:	iep_OpenOptionContractWrittenPotentialPaymentAmount
Namespace Prefix:	iep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624258-113959

+ Details

Name:	us-gaap_CollateralAlreadyPostedAggregateFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value of credit risk derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4K

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5708775-113959

+ Details

Name:	us-gaap_CreditRiskDerivativeLiabilitiesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

Name:	us-gaap_UnrealizedGainLossOnDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_CounterpartyNameAxis=iep_HoldingCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CreditDefaultSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=iep_KoalaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=iep_InvestmentSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: