Inventories - Schedule of inventories (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021
Inventory, Net [Abstract]
Raw materials and supplies	$ 124.8	$ 115.0
Work in process	251.1	206.2
Finished and purchased products	115.5	104.5
Total inventories	$ 491.4	$ 425.7

Carrying amount, net of reserves and adjustments, as of the balance sheet date of finished goods and purchased parts.

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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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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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