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Commitments and Contingencies Commitments and Contingencies (Details) (USD $) | 3 Months Ended | 9 Months Ended | 0 Months Ended | 9 Months Ended |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended | 9 Months Ended |  |  |  |  | 9 Months Ended |  | 9 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Aug. 05, 2013 Principal Owners and Affiliates [Member] | Sep. 30, 2013 Principal Owners and Affiliates [Member] | Sep. 30, 2013 ACF [Member] | Dec. 31, 2012 ACF [Member] | Sep. 30, 2013 Starfire Holding Corporation [Member] | Jan. 31, 2013 Gaming Segment [Member] | Sep. 30, 2013 Gaming Segment [Member] | Sep. 30, 2012 Gaming Segment [Member] | Sep. 30, 2013 Gaming Segment [Member] | Sep. 30, 2012 Gaming Segment [Member] | Sep. 30, 2013 Railcar Segment [Member] | Sep. 30, 2012 Railcar Segment [Member] | Sep. 30, 2013 Railcar Segment [Member] | Sep. 30, 2012 Railcar Segment [Member] | Sep. 30, 2013 Metals Segment [Member] | Sep. 30, 2012 Metals Segment [Member] | Sep. 30, 2013 Metals Segment [Member] | Sep. 30, 2012 Metals Segment [Member] | Sep. 30, 2013 Automotive Segment [Member] | Sep. 30, 2012 Automotive Segment [Member] | Sep. 30, 2013 Automotive Segment [Member] | Sep. 30, 2012 Automotive Segment [Member] | Dec. 31, 2012 Automotive Segment [Member] | Sep. 30, 2013 Home Fashion Segment [Member] | Sep. 30, 2012 Home Fashion Segment [Member] | Sep. 30, 2013 Home Fashion Segment [Member] | Sep. 30, 2012 Home Fashion Segment [Member] | Sep. 30, 2013 Energy Segment [Member] | Sep. 30, 2012 Energy Segment [Member] | Sep. 30, 2013 Energy Segment [Member] | Sep. 30, 2012 Energy Segment [Member] | Aug. 12, 2010 Tropicana [Member] Gaming Segment [Member] | Sep. 30, 2013 CRRM [Member] Energy Segment [Member] | Sep. 30, 2013 PSC Metals [Member] Metals Segment [Member] | Dec. 31, 2012 PSC Metals [Member] Metals Segment [Member] | Sep. 30, 2013 WPH [Member] Home Fashion Segment [Member] | Dec. 31, 2012 WPH [Member] Home Fashion Segment [Member] | Sep. 30, 2013 Federal-Mogul [Member] Automotive Segment [Member] | Dec. 31, 2012 Federal-Mogul [Member] Automotive Segment [Member] | Sep. 30, 2013 Icahn Enterprises G.P. [Member] Principal Owners and Affiliates [Member] | Dec. 31, 2011 CRNF [Member] Energy Segment [Member] | Dec. 31, 2010 CRNF [Member] Energy Segment [Member] | Dec. 31, 2009 CRNF [Member] Energy Segment [Member] | Dec. 31, 2008 CRNF [Member] Energy Segment [Member] | Sep. 30, 2013 Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Dec. 31, 2011 Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Sep. 30, 2013 Minimum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Sep. 30, 2013 Maximum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Sep. 30, 2013 Tax settlement loss | Sep. 30, 2012 Tax settlement loss | Sep. 30, 2013 Tax settlement loss | Sep. 30, 2012 Tax settlement loss
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued environmental liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,000,000 |  | $ 15,000,000 |  | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | $ 29,000,000 | $ 29,000,000 | $ 1,000,000 | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Possible material additional losses, above and beyond best estimate of required remediation costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages sought |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax refund as result of Trop AC tax appeal settlement |  |  |  |  |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other income (loss), net | 82,000,000 | (171,000,000) | 130,000,000 | (162,000,000) |  |  |  |  |  |  | (1,000,000) | 0 | 0 | (3,000,000) | 0 | (2,000,000) | (2,000,000) | (2,000,000) | 0 | 5,000,000 | 0 | 1,000,000 | (4,000,000) | (4,000,000) | (37,000,000) | 9,000,000 |  | 2,000,000 | 1,000,000 | 3,000,000 | 3,000,000 | 79,000,000 | (169,000,000) | [1] | 184,000,000 | (171,000,000) | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (23,000,000) | 0
Average increase in annual property tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 | 12,000,000 | 11,000,000 | 11,000,000 |  |  |  |  |  |  |  |
Negotiated settlement to resolve Port Refinery environmental matter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 |  |  |  |  |  |  |  |  |
Number of scrap processing facilities requiring refrigerant extraction services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |  |
Number of years refrigerant extraction services must be offered at scrap processing facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |
Costs associated with required injunctive relief, high estimate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  | 63,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 900,000 | 1,300,000 |  |  |  |
Civil penalty assessed and paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 199,000 |  |  |  |  |  |
Affiliate ownership in parent company general partner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Affiliate ownership interest |  |  |  |  | 89.40% | 89.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan, Funded Status of Plan |  |  |  |  |  |  | (703,000,000) | 130,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Percentage by Mr. Icahn |  |  |  |  |  |  |  |  | 99.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor |  |  |  |  |  |  |  |  | 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Retirement Obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28,000,000 | $ 29,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Energy segment results are for the period May 5, 2012 through September 30, 2012.

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