| DEI Document and Entity Information | Aug. 01, 2019 |
| Cover page. | |
| City Area Code | 713 |
| Local Phone Number | 651-7000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000821189 |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Entity Incorporation, State or Country Code | DE |
| Document Type | 8-K |
| Document Period End Date | Aug. 1, 2019 |
| Entity File Number | 1-9743 |
| Entity Tax Identification Number | 47-0684736 |
| Trading Symbol | EOG |
| Security Exchange Name | NYSE |
| Amendment Flag | false |
| Entity Registrant Name | EOG RESOURCES, INC. |
| Entity Address, Address Line One | 1111 Bagby, Sky Lobby 2 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77002 |
