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ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS - NARRATIVE (Details) shares in Millions, $ in Millions |  |  | 1 Months Ended | 2 Months Ended | 9 Months Ended | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Nov. 03, 2023 USD ($) payment | Dec. 31, 2023 USD ($) shares | Sep. 30, 2023 USD ($) | Jan. 31, 2022 USD ($) | Nov. 30, 2021 USD ($) | Oct. 31, 2021 USD ($) | Jul. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) shares | Nov. 03, 2025 USD ($) | Aug. 31, 2023 | Jul. 31, 2023
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-core proved and unproved properties sold |  |  |  | $ 202 |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on disposition of assets |  |  |  | $ 142 |  |  |  |  |  |  |  | $ 522 | $ 308 | $ 192 |  |  |
Disposed of by sale | Permian Basin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  |  | $ 190 |  |  | $ 475 |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  | $ 123 |  |  |  |  |  |  |  |  |  |  |  |
Disposed of by sale | DJ Basin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  |  |  |  |  |  | $ 280 |  |  |  |  |  |  |  |
Disposed of by sale | Ghana Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  |  |  |  | $ 555 |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  |  |  | 750 |  |  |  |  |  |  |  |  |  |
Settlement of certain tax claims related to historical operations in Ghana |  |  |  |  |  |  | $ 170 |  |  |  |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | WES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  |  |  |  |  |  |  | $ 51 | $ 62 | $ 102 |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 5.1 | 10.0 | 14.0 |  |  |
Net proceeds from sale of equity investment |  |  |  |  |  |  |  |  |  |  |  |  | $ 250 | $ 250 |  |  |
Discontinued Operations | Ghana Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
After-tax loss contingency |  |  |  |  |  |  |  |  |  |  | $ 31 |  |  | $ 437 |  |  |
Crownrock L.P. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration upon approval |  |  | $ 12,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares upon approval (in shares) | shares |  |  | 29.6 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crownrock L.P. | Existing Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of debt upon approval |  |  | $ 1,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crownrock L.P. | High end of range | New Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of debt upon approval |  |  | $ 9,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carbon Engineering, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest acquired, percent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 68.00% |
Cash consideration |  | $ 349 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest in acquiree, percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32.00%
Equity interest in acquiree, remeasurement gain | $ 283 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of equal annual payments | payment |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carbon Engineering, Ltd. | Subsequent event | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash consideration |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,100 |  |
Permian EOR Business Unit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-monetary exchange agreement value |  |  |  |  |  |  |  |  |  |  |  | $ 120 |  |  |  |  |
Business combination, contingent consideration, asset |  |  |  |  |  |  |  |  |  | $ 340 |  |  | 340 |  |  |  |
Net purchase price |  |  |  |  |  | $ 285 |  |  |  |  |  |  |  |  |  |  |
Permian Basin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net purchase price |  |  |  |  |  |  |  |  |  | $ 400 |  |  |  |  |  |  |
Pathway and Emerging Low Carbon Opportunities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net purchase price |  |  |  |  |  |  |  |  |  |  |  |  | $ 350 |  |  |  |

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