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SEGMENTS (Tables) | 3 Months Ended
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Mar. 31, 2023
Segment Reporting [Abstract] |
Schedule of Industry Segments | The following table presents Occidental’s industry segments:
millions | Oil and gas (a) | Chemical | Midstream and marketing (b) | Corporate and eliminations (c) | Total
Three months ended March 31, 2023 |  |  |  |  |
Net sales | $ | 5,325 |  | $ | 1,405 |  | $ | 751 |  | $ | (256) |  | $ | 7,225 |
Income (loss) before income taxes | $ | 1,640 |  | $ | 472 |  | $ | 2 |  | $ | (380) |  | $ | 1,734 |
Income tax expense | — |  | — |  | — |  | (471) |  | (471) |
Net income (loss) | $ | 1,640 |  | $ | 472 |  | $ | 2 |  | $ | (851) |  | $ | 1,263 |
Three months ended March 31, 2022 |  |  |  |  |
Net sales | $ | 6,075 |  | $ | 1,684 |  | $ | 882 |  | $ | (292) |  | $ | 8,349 |
Income (loss) before income taxes | $ | 2,898 |  | $ | 671 |  | $ | (50) |  | $ | (436) |  | $ | 3,083 |
Income tax expense | — |  | — |  | — |  | 1,793 |  | 1,793 |
Net income (loss) | $ | 2,898 |  | $ | 671 |  | $ | (50) |  | $ | 1,357 |  | $ | 4,876 |
(a) The three months ended March 31, 2023 included a $26 million litigation settlement gain. The three months ended March 31, 2022 included $125 million of gains related to the sale of certain non-strategic assets in the Permian Basin. (b) The three months ended March 31, 2023 included a $26 million impairment charge included in Income from equity investments. The three months ended March 31, 2022 included $198 million of net derivative mark-to-market losses. (c) The three months ended March 31, 2022 included a tax benefit of $2.6 billion in connection with Occidental's legal entity reorganization, which is further discussed in the Income Taxes section of the Management’s Discussion and Analysis of Financial Condition and Results of Operations in Part I, Item 2 of this Form 10-Q, as well as a $135 million gain on interest rate swaps and $65 million of Anadarko acquisition-related costs.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 + Details
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