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Commitments and Contingencies (Details 2) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013
Loss Contingencies [Line Items] |  |  |
Environmental costs recognized capitalized in the period | $ 33.8 | $ 22.2 |
Affiliate pension obligations |  |  |
Minimum ownership interest in CVR Energy by Mr. Icahn's affiliates (as a percent) | 80.00% |  |
Number of sponsors of pension plans | 2 |  |
Mr. Icahn's affiliates |  |  |
Affiliate pension obligations |  |  |
Ownership percentage held by controlling stockholder | 82.00% |  |
EHS |  |  |
Loss Contingencies [Line Items] |  |  |
Environmental accruals | 1.4 |  | 1.5
EHS | CRRM |  |  |
Loss Contingencies [Line Items] |  |  |
Cost of renewable identification numbers | 34.7 | 32.1 |
Biofuel blending obligation recorded in other current liabilities | 39.9 |  | 17.4
Affiliate Pension Obligations |  |  |
Affiliate pension obligations |  |  |
Underfunded pension obligation, if ACF and Federal-Mogul plans were voluntarily terminated | $ 483.1 |  | $ 591.8
New Vitol Agreement | CRRM |  |  |
Loss Contingencies [Line Items] |  |  |
Renewal term of agreement | 1 year |  |
Number of days for prior notice of nonrenewal | 180 days |  |

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- Definition Carrying value as of the balance sheet date of obligations pertains to Biofuels blending. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References No definition available. + Details
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 2: 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=25496072&loc=d3e14326-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
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- Definition Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 25 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=28360866&loc=d3e11660-110855 + Details
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