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v3.21.1

Segment Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Selected Information [Line Items] |  |  |  |  |
Document Period End Date |  | Mar. 31, 2021 |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |  |
Operating Revenues and Other |  | $ 3,694,000,000 | $ 4,718,000,000 |  |
Operating Income (Loss) |  | 932,000,000 | 58,000,000 |  |
Other Income, Net |  | (4,000,000) | 18,000,000 |  |
Interest Expense, Net |  | (47,000,000) | (45,000,000) |  |
Income Before Income Taxes |  | 881,000,000 | 31,000,000 |  |
Total Assets |  | 36,171,000,000 |  |  | $ 35,805,000,000
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Property, Plant and Equipment |  |  | 1,456,000,000 |  |
United States |  |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |  |
Operating Revenues and Other |  | 3,606,000,000 | 4,661,000,000 |  |
Operating Income (Loss) |  | 890,000,000 | 105,000,000 | [1] |
Total Assets |  | 35,395,000,000 |  |  | 35,048,000,000
Trinidad |  |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |  |
Operating Revenues and Other |  | 76,000,000 | 42,000,000 |  |
Operating Income (Loss) |  | 43,000,000 | 13,000,000 |  |
Total Assets |  | 586,000,000 |  |  | 546,000,000
Other International |  |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |  |
Operating Revenues and Other | [2] | 12,000,000 | 15,000,000 |  |
Operating Income (Loss) | [2] | (1,000,000) | (60,000,000) | [3] |
Total Assets | [4] | $ 190,000,000 |  |  | $ 211,000,000
Pretax Impairment Charges for Proved Oil and Gas Properties and Other Property, Plant and Equipment |  |  | $ 60,000,000 |  |
[1] | EOG recorded pretax impairment charges of $1,456 million for the three months ended March 31, 2020, for proved oil and gas properties, leasehold costs and other assets due to the decline in commodity prices.
[2] | Other International primarily consists of EOG's China and Canada operations. EOG began an exploration program in Oman in the third quarter of 2020.
[3] | EOG recorded pretax impairment charges of $60 million for the three months ended March 31, 2020, for firm commitment contracts related to its decision to exit the Horn River Basin in British Columbia, Canada.
[4] | Other International primarily consists of EOG's China and Canada operations. EOG began an exploration program in Oman in the third quarter of 2020.

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD. + References No definition available. + Details
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