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Consolidated Statement of Changes in Equity and Comprehensive Income Parenthetical (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Accumulated other comprehensive loss	$ 675	$ 597

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- Definition

Accumulated other comprehensive loss

+ Details

Name:	iep_AccumulatedOtherComprehensiveLoss
Namespace Prefix:	iep
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant