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(Details) | 12 Months Ended
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Dec. 31, 2012
Principal Owners and Affiliates [Member] |
Entity Information [Line Items] |
Affiliate ownership interest in Icahn Enterprises (in units) | 97,764,251
Affiliate ownership interest in Icahn Enterprises | 93.20%
Icahn Enterprises G.P. [Member] |
Entity Information [Line Items] |
General partner ownership percentage in Icahn Enterprises | 1.00%
Aggregate general partner ownership interest of parent and operating subsidiary | 1.99%
Icahn Enterprises Holdings [Member] |
Entity Information [Line Items] |
Percentage of equity ownership in operating subsidiary | 99.00%
Icahn Enterprises G.P. [Member] |
Entity Information [Line Items] |
General partner ownership interest in Icahn Enterprises Holdings | 1.00%

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