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Long-Term Debt - Additional Information (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Debt Instrument [Line Items] |  |
Accrued interest payable | $ 8 | $ 8
CVR Refining | Senior Notes | 6.50% Senior Notes due November 2022 |  |
Debt Instrument [Line Items] |  |
Accrued interest payable | 5 |
CVR Partners | Senior Notes | 9.25% Senior Secured Notes due June 2023 |  |
Debt Instrument [Line Items] |  |
Accrued interest payable | $ 3 |

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