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Inventories (Schedule of Inventories) (Details) - USD ($)
$ in Millions
Jan. 31, 2019
Oct. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 119.9 $ 112.5
Work-in-process 12.6 12.6
Finished goods 353.7 343.7
Inventories, net $ 486.2 $ 468.8