Inventories - Components of Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Inventories:
Manufacturing supplies	$ 41.7	$ 38.0
Raw materials	132.0	121.8
Work in process	491.2	418.4
Finished products	584.8	527.8
Subtotal	1,249.7	1,106.0
Allowance for surplus and obsolete inventory	(58.4)	(63.3)
Total Inventories, net	$ 1,191.3	$ 1,042.7

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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.

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