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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2019
Inventory Disclosure [Abstract] |
Schedule of Inventory | Inventories at December 31, 2019 and 2018 were as follows (in millions):
|  | 2019 |  | 2018
Raw materials and supplies |  | $ | 164.9 |  |  | $ | 191.5 |
Work-in-process |  | 899.6 |  |  | 914.1 |
Finished goods |  | 161.3 |  |  | 191.1 |
Total inventories at current cost |  | 1,225.8 |  |  | 1,296.7 |
Adjustment from current cost to LIFO cost basis |  | 33.6 |  |  | 2.9 |
Inventory valuation reserves |  | (104.1 | ) |  | (88.5 | )
Total inventories, net |  | $ | 1,155.3 |  |  | $ | 1,211.1 |
Schedule of Inventory Valuation Impact on Income |
|  | Fiscal year ended December 31,
|  | 2019 | 2018 | 2017
LIFO benefit (charge) |  | $ | 25.5 |  | $ | (28.6 | ) | $ | (54.2 | )
NRV benefit (charge) |  | (25.6 | ) | 27.9 |  | 54.0 |
Net cost of sales impact |  | $ | (0.1 | ) | $ | (0.7 | ) | $ | (0.2 | )

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- Definition Disclosure of the values of the inventory by category at the balance sheet date including raw materials, work-in-process, finished goods at current cost, adjusted for LIFO reserves and progress payments + References No definition available. + Details
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