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, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 578.2	$ 679.4	$ 1,749.3	$ 1,961.8
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	263.7	306.2	779.6	891.1
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	185.2	222.7	577.3	642.0
Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net sales	$ 129.3	$ 150.5	$ 392.4	$ 428.7