Accounting Policies - Property Plant and Equipment (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 2,474.8	$ 2,193.9
Less: Accumulated depreciation	1,192.9	1,061.8
Property, plant and equipment, net	1,281.9	1,132.1	$ 976.0
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	19.9	19.9
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	356.1	330.9
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	1,764.9	1,582.3
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 333.9	$ 260.8