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INVENTORIES | 12 Months Ended
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Dec. 31, 2023
Inventory Disclosure [Abstract] |
INVENTORIES | NOTE 8. INVENTORIES
| December 31,
| 2023 |  | 2022
Inventories | ($ in millions)
Supplies | $ | 160.3 |  |  | $ | 137.6 |
Raw materials | 171.1 |  |  | 201.2 |
Work in process | 153.5 |  |  | 199.6 |
Finished goods | 507.6 |  |  | 559.3 |
Inventories excluding LIFO reserve | 992.5 |  |  | 1,097.7 |
LIFO reserve | (133.7) |  |  | (155.8) |
Inventories, net | $ | 858.8 |  |  | $ | 941.9 |
Inventories valued using the LIFO method comprised 56% and 59% of the total inventories at December 31, 2023 and 2022, respectively. The replacement cost of our inventories would have been approximately $133.7 million and $155.8 million higher than that reported at December 31, 2023 and 2022, respectively.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//330/tableOfContent + Details
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