| Document and Entity Information | Oct. 30, 2019 |
| Document And Entity Information [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 30, 2019 |
| Entity Registrant Name | HESS CORP |
| Entity Central Index Key | 0000004447 |
| Entity Emerging Growth Company | false |
| Entity File Number | 1-1204 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 13-4921002 |
| Entity Address, Address Line One | 1185 Avenue of the Americas |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | 212 |
| Local Phone Number | 997-8500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of each class | Common Stock |
| Trading Symbol | HES |
| Name of exchange on which registered | NYSE |
