Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Inventories, net:
Manufacturing supplies	$ 33.5	$ 32.4
Raw materials	107.3	102.4
Work in process	294.9	287.7
Inventory, Finished Goods, Gross	451.6	452.7
Subtotal	887.3	875.2
Allowance for obsolete and surplus inventory	(43.5)	(39.5)
Total Inventories, net	$ 843.8	$ 835.7

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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