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INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Deferred tax assets: |  |  |  |
Operating loss and other carryforwards | $ 589 | $ 390 |  |
Pension and OPEB liabilities | 129 | 155 |  |
Environmental | 69 | 67 |  |
Product inventories | 53 | 92 |  |
State and local | 36 | 9 |  |
Lease liabilities | 87 | 79 |  |
Other liabilities | 151 | 180 |  |
Total deferred tax assets before valuation allowance | 1,114 | 972 |  |
Deferred tax asset valuation allowance | (388) | (396) | $ (390) | $ (409)
Net deferred tax assets | 726 | 576 |  |
Deferred tax liabilities: |  |  |  |
Investment in ventures | (181) | (192) |  |
Lease assets | (88) | (79) |  |
Property, plant and equipment and mineral rights | (811) | (837) |  |
Intangible assets | (441) | (27) |  |
Other assets | (59) | (76) |  |
Total deferred tax liabilities | (1,580) | (1,211) |  |
Net deferred tax liabilities | $ (854) | $ (635) |  |

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