Restructuring Charges - Additional Information (Details) $ in Millions	3 Months Ended		12 Months Ended
	Oct. 31, 2020 USD ($) Plant	Oct. 31, 2019 USD ($) Plant	Oct. 31, 2020 USD ($) Plant employee	Oct. 31, 2019 USD ($) employee Plant	Oct. 31, 2018 USD ($) employee Plant
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 11.9	$ 5.8	$ 38.7	$ 26.1	$ 18.6
Number of plants closed (plant) | Plant	16		16
Number of employees severed (employee) | employee			658	430	322
Amounts remaining to be incurred	$ 22.8		$ 22.8
Rigid Industrial Packaging & Services
Restructuring Cost and Reserve [Line Items]
Restructuring charges			26.3
Amounts remaining to be incurred	16.2		16.2
Rigid Industrial Packaging and Services and Flexible Products and Services
Restructuring Cost and Reserve [Line Items]
Number of plants closed (plant) | Plant		12		12	5
Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			26.4	$ 22.5	$ 14.8
Employee Separation Costs | Rigid Industrial Packaging & Services
Restructuring Cost and Reserve [Line Items]
Restructuring charges			21.0
Amounts remaining to be incurred	10.6		10.6
Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			12.3	$ 3.6	$ 3.8
Other Costs | Rigid Industrial Packaging & Services
Restructuring Cost and Reserve [Line Items]
Restructuring charges			5.3
Amounts remaining to be incurred	$ 5.6		$ 5.6