Document and Entity Information
| Document and Entity Information | Sep. 21, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | EOG RESOURCES INC |
| Amendment Flag | false |
| Entity Central Index Key | 0000821189 |
| Document Type | 8-K |
| Document Period End Date | Sep. 21, 2021 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-9743 |
| Entity Tax Identification Number | 47-0684736 |
| Entity Address, Address Line One | 1111 Bagby |
| Entity Address, Address Line Two | Sky Lobby 2 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77002 |
| 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 |
| Security 12b Title | Common Stock, par value $0.01 per share |
| Trading Symbol | EOG |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |