Amount deposited in term letter of credit account under credit facility

No definition available.

Name:	iep_AmountDepositedInTermLetterOfCreditAccountUnderCreditFacility
Namespace Prefix:	iep_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Term of Interest Rate Derivatives

+ References

No definition available.

+ Details

Name:	iep_TermOfInterestRateDerivatives
Namespace Prefix:	iep_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

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

- Details

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

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

Debt Narrative - Debt Facilities - Automotive (Details) (Automotive Segment [Member], USD $)	6 Months Ended					6 Months Ended			6 Months Ended
	Jun. 30, 2013 Letter of Credit [Member] Tranche C Loan [Member]	Jun. 30, 2013 Revolving Credit Facility [Member] Debt Facility [Member]	Dec. 31, 2012 Revolving Credit Facility [Member] Debt Facility [Member]	Jun. 30, 2013 Letter of Credit [Member] Debt Facility [Member]	Dec. 31, 2012 Letter of Credit [Member] Debt Facility [Member]	Jun. 30, 2013 Term Loan [Member] Debt Facility [Member]	Jun. 30, 2013 Term Loan [Member] Debt Facility [Member] Tranche B Loan [Member]	Jun. 30, 2013 Term Loan [Member] Debt Facility [Member] Tranche C Loan [Member]	Jun. 30, 2013 LIBOR [Member] Term Loan [Member] Debt Facility [Member]	Jun. 30, 2013 Base Rate [Member] Term Loan [Member] Debt Facility [Member]	Jun. 30, 2013 Minimum [Member] LIBOR [Member] Revolving Credit Facility [Member] Debt Facility [Member]	Jun. 30, 2013 Minimum [Member] Base Rate [Member] Revolving Credit Facility [Member] Debt Facility [Member]	Jun. 30, 2013 Maximum [Member] LIBOR [Member] Revolving Credit Facility [Member] Debt Facility [Member]	Jun. 30, 2013 Maximum [Member] Base Rate [Member] Revolving Credit Facility [Member] Debt Facility [Member]
Debt Instrument [Line Items]
Term of Interest Rate Derivatives						5 years
Line of credit facility		$ 540,000,000
Term Loan Facility						2,960,000,000	1,960,000,000	1,000,000,000
Percentage spread on debt									1.9375%	0.9375%	1.50%	0.50%	2.00%	1.00%
Revolving credit facility, unused borrowing availability		492,000,000	451,000,000
Letters of credit outstanding				40,000,000	37,000,000
Amount deposited in term letter of credit account under credit facility	$ 50,000,000