Supplemental Balance Sheet Information (Inventory) (Details) - USD ($) $ in Millions	Jul. 31, 2018	Jul. 31, 2017
Inventory, Net [Abstract]
Raw materials	$ 128.7	$ 96.3
Work in process	27.4	19.7
Finished products	178.0	177.5
Inventories, net	$ 334.1	$ 293.5

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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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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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 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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