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Commitments and Contingencies Commitments and Contingencies (Details) (USD $) | 3 Months Ended | 0 Months Ended | 3 Months Ended |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended |  | 3 Months Ended |  | 0 Months Ended | 3 Months Ended |  |  |  |  | 3 Months Ended |  | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013 | May 06, 2014 Principal Owners and Affiliates [Member] | Mar. 31, 2014 Principal Owners and Affiliates [Member] | Mar. 31, 2014 ACF [Member] | Dec. 31, 2013 ACF [Member] | Mar. 31, 2014 Starfire Holding Corporation [Member] | Jan. 31, 2013 Gaming Segment [Member] | Mar. 31, 2014 Gaming Segment [Member] | Mar. 31, 2013 Gaming Segment [Member] | Dec. 31, 2013 Gaming Segment [Member] | Mar. 31, 2014 Metals Segment [Member] | Mar. 31, 2013 Metals Segment [Member] | Mar. 31, 2014 Automotive Segment [Member] | Mar. 31, 2013 Automotive Segment [Member] | Dec. 31, 2013 Automotive Segment [Member] | Mar. 31, 2014 Home Fashion Segment [Member] | Mar. 31, 2013 Home Fashion Segment [Member] | Mar. 31, 2014 Energy Segment [Member] | Mar. 31, 2013 Energy Segment [Member] | Dec. 31, 2013 Energy Segment [Member] | Aug. 12, 2010 Tropicana [Member] Gaming Segment [Member] | Mar. 31, 2014 CVR Energy, Inc. [Member] Energy Segment [Member] | Mar. 31, 2013 CVR Energy, Inc. [Member] Energy Segment [Member] | Mar. 31, 2014 PSC Metals [Member] Metals Segment [Member] | Dec. 31, 2013 PSC Metals [Member] Metals Segment [Member] | Mar. 31, 2014 WPH [Member] Home Fashion Segment [Member] | Dec. 31, 2013 WPH [Member] Home Fashion Segment [Member] | Mar. 31, 2014 Federal-Mogul [Member] Automotive Segment [Member] | Dec. 31, 2013 Federal-Mogul [Member] Automotive Segment [Member] | Mar. 31, 2014 Icahn Enterprises G.P. [Member] Principal Owners and Affiliates [Member] | Dec. 31, 2008 CRNF [Member] Energy Segment [Member] | Mar. 31, 2014 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] | Mar. 31, 2014 Minimum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Mar. 31, 2014 Maximum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member] | Mar. 31, 2014 Settlement loss with taxing authority [Member] | Mar. 31, 2013 Settlement loss with taxing authority [Member] | Mar. 31, 2014 Settlement loss with taxing authority [Member] Gaming Segment [Member]
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases, Rent Expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,000,000 | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued environmental liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,000,000 |  | 14,000,000 |  |  | 1,000,000 |  | 1,000,000 |  |  |  | 28,000,000 | 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 | 35,000,000 | (45,000,000) |  |  |  |  |  |  | 37,000,000 | 0 |  | 1,000,000 | 0 | 9,000,000 | (33,000,000) |  | 1,000,000 | 0 | 109,000,000 | (14,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32,000,000 | 0 | 32,000,000
Average increase in annual property tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 | 1,700,000 |  |  |
Civil penalty assessed and paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 199,000 |  |  |  |  |
Affiliate ownership in parent company general partner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Affiliate ownership interest |  |  | 88.10% | 88.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan, Funded Status of Plan |  |  |  |  | 483,000,000 | 592,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,000,000 |  |  |  |  |  |  |  |  |
Tax to be paid as result of Trop AC tax appeal settlement |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate tax credits used |  |  |  |  |  |  |  |  |  |  | 16,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Professional Fees |  |  |  |  |  |  |  |  |  |  | $ 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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