Business Segment Information - Schedule of Net Sales to Unaffiliated Customers by Country of Domicile (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 679.4	$ 660.0	$ 1,961.8	$ 1,881.3
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	306.2	302.1	891.1	856.8
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	222.7	224.0	642.0	637.8
Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 150.5	$ 133.9	$ 428.7	$ 386.7