RESTRUCTURING CHARGES - Amounts Expected to be Incurred, Amounts Incurred, and Amounts Remaining to Be Incurred (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	$ 18.1		$ 18.1
Amounts Incurred During the Six Months Ended April 30, 2022	3.7	$ 12.0	7.2	$ 15.1
Amounts Remaining to be Incurred	10.9		10.9
Employee separation costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the Six Months Ended April 30, 2022	2.3		3.9
Other restructuring costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the Six Months Ended April 30, 2022	1.4		3.3
Global Industrial Packaging
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	13.8		13.8
Amounts Incurred During the Six Months Ended April 30, 2022			4.8
Amounts Remaining to be Incurred	9.0		9.0
Global Industrial Packaging | Employee separation costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	10.1		10.1
Amounts Incurred During the Six Months Ended April 30, 2022			3.3
Amounts Remaining to be Incurred	6.8		6.8
Global Industrial Packaging | Other restructuring costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	3.7		3.7
Amounts Incurred During the Six Months Ended April 30, 2022			1.5
Amounts Remaining to be Incurred	2.2		2.2
Paper Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	4.3		4.3
Amounts Incurred During the Six Months Ended April 30, 2022			2.4
Amounts Remaining to be Incurred	1.9		1.9
Paper Packaging & Services | Employee separation costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	1.1		1.1
Amounts Incurred During the Six Months Ended April 30, 2022			0.6
Amounts Remaining to be Incurred	0.5		0.5
Paper Packaging & Services | Other restructuring costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	3.2		3.2
Amounts Incurred During the Six Months Ended April 30, 2022			1.8
Amounts Remaining to be Incurred	$ 1.4		$ 1.4