| DEI Document | Feb. 22, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 22, 2021 |
| Entity Registrant Name | DIAMONDBACK ENERGY, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-35700 |
| Entity Tax Identification Number | 45-4502447 |
| Entity Address, Address Line One | 500 West Texas |
| Entity Address, Address Line Two | Suite 1200 |
| Entity Address, City or Town | Midland, |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 79701 |
| City Area Code | 432 |
| Local Phone Number | 221-7400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | FANG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001539838 |
