| Cover | May 27, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 27, 2021 |
| Entity Registrant Name | CVR ENERGY, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-33492 |
| Entity Tax Identification Number | 61-1512186 |
| Entity Address, Address Line One | 2277 Plaza Drive, Suite 500 |
| Entity Address, City or Town | Sugar Land |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77479 |
| City Area Code | 281 |
| Local Phone Number | 207-3200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value per share |
| Trading Symbol | CVI |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001376139 |
| Amendment Flag | false |
