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Inventories (Notes) | 3 Months Ended
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Mar. 31, 2021
Inventory Disclosure [Abstract] |
Inventory Disclosure [Text Block] | 3. INVENTORIES We state our inventories at the lower of cost or net realizable value. The cost of our inventories is determined using the first-in first-out method. When we determine that our gross inventories exceed usage requirements, or if inventories become obsolete or otherwise not saleable, we record a provision for such loss as a component of our inventory accounts. Inventories consist of the following:
|  | March 31, 2021 |  | December 31, 2020
|  | (in millions)
Raw materials and work-in-progress |  | $ | 296.3 |  |  | $ | 276.2 |
Finished goods |  | 65.6 |  |  | 70.4 |
Gross inventories |  | 361.9 |  |  | 346.6 |
Inventory valuation reserves |  | (23.8) |  |  | (23.4) |
Inventories, net |  | $ | 338.1 |  |  | $ | 323.2 |

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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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