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Inventories | 12 Months Ended
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Dec. 31, 2019
Inventory, Net [Abstract] |
Inventories | Inventories Inventories, at December 31, consist of the following:
| 2019 |  | 2018
Raw materials | $ | 101.3 |  |  | $ | 100.8 |
Work-in-process | 44.1 |  |  | 49.5 |
Finished goods | 34.3 |  |  | 47.3 |
Operating and other supplies | 140.9 |  |  | 146.2 |
Inventories | $ | 320.6 |  |  | $ | 343.8 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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- References No definition available. + Details
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