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Commitments and Contingencies Commitments and Contingencies (Details) (USD $) | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  | 0 Months Ended |  | 6 Months Ended |  | 6 Months Ended | 12 Months Ended | 6 Months Ended |  |  |  | 6 Months Ended | 12 Months Ended
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Jun. 30, 2012 Principal Owners and Affiliates [Member] | Dec. 31, 2011 Principal Owners and Affiliates [Member] | Jun. 30, 2012 ACF [Member] | Dec. 31, 2011 ACF [Member] | Jun. 30, 2012 Starfire Holding Corporation [Member] | Jun. 30, 2012 Railcar Segment [Member] ARI [Member] ARI Joint Venture [Member] | Aug. 05, 2009 Railcar Segment [Member] ARI [Member] ARI Joint Venture [Member] | Jun. 30, 2012 Railcar Segment [Member] ARI [Member] ARI Joint Venture [Member] Term Loan [Member] | Jun. 30, 2012 Railcar Segment [Member] ARI [Member] ARI Joint Venture [Member] Revolving Credit Facility [Member] | Jun. 30, 2012 Automotive Segment [Member] | Dec. 31, 2011 Automotive Segment [Member] | Dec. 29, 2009 Tropicana [Member] Exit Facility [Member] | Mar. 08, 2010 Tropicana [Member] Exit Facility [Member] Term Loan [Member] | Mar. 08, 2010 Tropicana [Member] Exit Facility [Member] Revolving Credit Facility [Member] | Aug. 12, 2010 Tropicana [Member] Gaming Segment [Member] | Mar. 08, 2010 Investment Funds [Member] Exit Facility [Member] Term Loan [Member] | Mar. 08, 2010 Investment Funds [Member] Exit Facility [Member] Revolving Credit Facility [Member] | Jun. 30, 2012 CVR Energy, Inc. [Member] Energy Segment [Member] | Jun. 30, 2012 PSC Metals [Member] Metals Segment [Member] | Dec. 31, 2011 PSC Metals [Member] Metals Segment [Member] | Jun. 30, 2012 PSC Metals [Member] Metals Segment [Member] Cleveland OH Scrap Processing Facility [Member] scrap_processing_facilities | Dec. 31, 2011 PSC Metals [Member] Metals Segment [Member] Cleveland OH Scrap Processing Facility [Member] | Jun. 30, 2012 Federal-Mogul [Member] Automotive Segment [Member] | Dec. 31, 2011 Federal-Mogul [Member] Automotive Segment [Member] | Jun. 30, 2012 WPH [Member] Home Fashion Segment [Member] | Dec. 31, 2011 WPH [Member] Home Fashion Segment [Member] | Jun. 30, 2012 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]
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average increase in annual property tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,000,000 | $ 12,000,000 | $ 11,000,000 | $ 11,000,000
Term Loan Facility |  |  |  |  |  |  |  | 60,000,000 |  |  |  |  | 130,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term Loan Facility, discount percentage |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility |  |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  | 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of loan to joint venture held |  |  |  |  |  |  | 50.00% |  |  |  |  | 50.00% |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding commitment, percentage of loan |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued environmental liabilities |  |  |  |  |  |  |  |  |  | 15,000,000 | 16,000,000 |  |  |  |  |  |  |  | 28,000,000 | 30,000,000 |  |  |  |  | 1,000,000 | 1,000,000 |  |  |  |  |
Negotiated settlement to resolve Port Refinery environmental matter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 225,000 |  |  |  |  |  |  |  |  |  |  |  |
Possible material additional losses, above and beyond best estimate of required remediation costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 41,000,000 |  |  |  |  |  |  |  |
Asset Retirement Obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21,000,000 | 22,000,000 |  |  |  |  |  |  |
Outstanding balance of loans due from ARI Joint Venture to ARI |  |  |  |  |  | 37,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding commitment, remaining obligation |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensatory damages sought |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  | 18,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of scrap processing facilities requiring refrigerant extraction services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |  |  |  |  |
Number of years refrigerant extraction services must be offered at scrap processing facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |
Costs associated with required injunctive relief, low estimate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 |  |  |  |  |  |  |  |  |  |
Costs associated with required injunctive relief, high estimate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,700,000 |  |  |  |  |  |  |  |  |  |
Civil penalty assessed and paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 199,000 |  |  |  |  |  |  |  |  |
Affiliate ownership in parent company general partner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |
Affiliate ownership interest | 93.00% | 92.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan, Funded Status of Plan |  |  | 134,000,000 | 112,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Percentage by Mr. Icahn |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Best estimate of the reasonably possible loss exposure in excess of the amount accrued for environmental loss contingencies at an individual site. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 96-1 -Paragraph 163 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 + Details
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