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Debt Narrative - Reporting Segment Debt (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |
Amortization of deferred financing costs and debt discounts and premiums | $ 5 | $ 10 | $ 14
Energy Segment | CVR 2022 Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt face amount | $ 500 |  |
Interest rate on debt instrument | 6.50% |  |
Energy Segment | CVR Partners 2023 Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt face amount | $ 645 |  |
Interest rate on debt instrument | 9.25% |  |
Energy Segment | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Borrowing availability on credit facilities | $ 444 | 382 |
Energy Segment | CVR Refining credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Letters of credit outstanding | 6 | 28 |
Automotive Segment | IEP Auto Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Debt face amount | 370 | 337 |
Borrowing availability on credit facilities | 90 | 75 |
Letters of credit outstanding | $ 40 | $ 33 |
Weighted average interest rate on debt | 4.37% | 3.58% |
Food Packaging Segment | Viskase credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate on debt instrument | 6.05% | 4.88% |

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