Acquisition Pro Forma Table (Details) (CVR Energy, Inc. [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011
CVR Energy, Inc. [Member]
Business Acquisition [Line Items]
Revenues	$ 9,547	$ 10,061
Net income	490	1,385
Net income attributable to Icahn Enterprises Holdings	$ 262	$ 682

Business Acquisition, Pro Forma Net Income (Loss) Attributable to Parent

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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