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ASSET RETIREMENT OBLIGATIONS - Summary Of Asset Retirement Obligations (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Environmental Exit Cost [Line Items] |  |  |  |
Asset retirement obligations | $ 522 | $ 520 | $ 522 | $ 449
Less: current portion | 17 | 21 |  |
Long-term asset retirement obligations | 505 | 499 |  |
Operating Segments |  |  |  |
Environmental Exit Cost [Line Items] |  |  |  |
Asset retirement obligations | $ 275 | $ 277 |  |

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