| DEI Document and Entity Information | Nov. 05, 2020 | May 07, 2020 |
| Cover [Abstract] | ||
| 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 | Nov. 5, 2020 | |
| 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 | |
| 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 |
