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ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS - NARRATIVE (Details) shares in Millions, a in Millions, $ in Millions | 1 Months Ended | 2 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 31, 2022 USD ($) shares | Jan. 31, 2022 USD ($) | Nov. 30, 2021 USD ($) | Oct. 31, 2021 USD ($) | Jul. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Oct. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) shares | Aug. 31, 2020 USD ($) a
Permian Basin | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  | $ 190 |  |  | $ 475 |  |  |  |  |  |  |  |  |
Gain on sale |  | $ 123 |  |  |  |  |  |  |  |  |  |  |  |
DJ Basin | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  |  |  | $ 280 |  |  |  |  |  |  |  |
WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale | $ 62 |  |  |  |  |  |  |  |  |  |  | $ 102 |  |
Number of shares sold (in shares) | shares | 10.0 |  |  |  |  |  |  |  |  |  |  | 14.0 | 14.0 |
Net proceeds from sale of equity investment | $ 250 |  |  |  |  |  |  |  |  |  |  | $ 250 | $ 250 |
Non-core Permian acreage | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on sale |  |  |  |  |  |  |  |  |  | $ 820 |  |  |  |
Oil and Gas Columbia Assets | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on sale |  |  |  |  |  |  | $ 353 |  |  |  |  |  |  |
Wyoming, Colorado, and Utah Assets | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |
Loss on sale |  |  |  |  |  |  |  | 440 |  |  |  |  |  |
Area of land sold (in acres) | a |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.5
Area of fee surface acres (in acres) | a |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.0
Sale consideration |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,330
Liabilities associated with sale |  |  |  |  |  |  |  | $ 329 |  |  |  |  |  |
Ghana Operations | Disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received for divested assets |  |  |  | $ 555 |  |  |  |  |  |  |  |  |  |
Sale consideration |  |  |  | 750 |  |  |  |  |  |  |  |  |  |
Settlement of certain tax claims related to historical operations in Ghana |  |  |  | $ 170 |  |  |  |  |  |  |  |  |  |
Ghana Operations | Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
After-tax loss contingency |  |  |  |  |  |  |  |  |  |  | $ 31 |  | $ 437 |
Permian EOR Business Unit |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Acquisition, Disposition and Other Transactions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
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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