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Related Party Transactions - Narrative (Details) $ in Millions |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2018 sponsor | Jul. 31, 2018 | Aug. 31, 2018 | Dec. 31, 2018 sponsor | Jun. 30, 2018 USD ($) | Dec. 31, 2017 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |
Minimum ownership interest in CVR Energy for eligibility to file as member of AEPC consolidated federal income tax group | 80.00% |  |  | 80.00% |  |
Number of sponsors of pension plans | sponsor | 2 |  |  | 2 |  |
Affiliate Pension Obligations |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Aggregate underfunded pension obligation if pension plans voluntarily terminated by affiliate | $ |  |  |  |  | $ 435 | $ 424
Majority Shareholder |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage held by controlling stockholder |  |  | 71.00% |  |  |
IEP Energy LLC | Majority Shareholder |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage held by controlling stockholder | 71.00% | 82.00% |  |  |  |
AEPC | Majority Shareholder |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Minimum ownership interest in CVR Energy for eligibility to file as member of AEPC consolidated federal income tax group | 80.00% |  |  | 80.00% |  |
Joint Venture Agreement | CVR Refining | Enable JV |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Initial term of agreement |  |  |  | 20 years |  |

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- Definition Represents the percentage of ownership interest in CVR Energy by Mr. Icahn's affiliates. + References No definition available. + Details
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- Definition Number of Sponsors of Pension Plans + References No definition available. + Details
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- Definition Represents the underfunded pension obligation of affiliates for which the Company is joint and severally liable. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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