SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Inventory (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Disclosure Text Block [Abstract] | ||
| Finished and semi-finished goods | $ 2,401 | $ 2,393 |
| Raw materials | 1,848 | 2,208 |
| Total product inventories | 4,249 | 4,601 |
| Manufacturing supplies and critical spares | 523 | 493 |
| Inventories | 4,772 | 5,094 |
| Excess of current cost over LIFO cost of iron ore inventories | 158 | 142 |
| Effect of inventory build | $ (57) | $ 64 |
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- References No definition available.
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- Definition The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The aggregated amount of merchandise or goods held by the entity and readily available for future sale plus items held by the entity which are partially complete or in the process of being readied for future sale. This amount is net of valuation reserves and adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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