RESTRUCTURING CHARGES - Amounts Expected to be Incurred, Amounts Incurred, and Amounts Remaining to Be Incurred (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018	Oct. 31, 2018
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	$ 38.4		$ 38.4
Amounts Incurred During the nine months ended July 31, 2019	9.1	$ 3.7	20.3	$ 13.8
Amounts Remaining to be Incurred	18.1		18.1		$ 12.0
Employee Separation Costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the nine months ended July 31, 2019	8.2		18.7
Other Costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the nine months ended July 31, 2019	0.9		1.6
Rigid Industrial Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	32.3		32.3
Amounts Incurred During the nine months ended July 31, 2019			15.0
Amounts Remaining to be Incurred	17.3		17.3
Rigid Industrial Packaging & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	25.8		25.8
Amounts Incurred During the nine months ended July 31, 2019			13.6
Amounts Remaining to be Incurred	12.2		12.2
Rigid Industrial Packaging & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	6.5		6.5
Amounts Incurred During the nine months ended July 31, 2019			1.4
Amounts Remaining to be Incurred	5.1		5.1
Flexible Products & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.8		0.8
Amounts Incurred During the nine months ended July 31, 2019			0.0
Amounts Remaining to be Incurred	0.8		0.8
Flexible Products & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.7		0.7
Amounts Incurred During the nine months ended July 31, 2019			0.0
Amounts Remaining to be Incurred	0.7		0.7
Flexible Products & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.1		0.1
Amounts Incurred During the nine months ended July 31, 2019			0.0
Amounts Remaining to be Incurred	0.1		0.1
Paper Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	5.2		5.2
Amounts Incurred During the nine months ended July 31, 2019			5.2
Amounts Remaining to be Incurred	0.0		0.0
Paper Packaging & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	5.0		5.0
Amounts Incurred During the nine months ended July 31, 2019			5.0
Amounts Remaining to be Incurred	0.0		0.0
Paper Packaging & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.2		0.2
Amounts Incurred During the nine months ended July 31, 2019			0.2
Amounts Remaining to be Incurred	0.0		0.0
Land Management
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.1		0.1
Amounts Incurred During the nine months ended July 31, 2019			0.1
Amounts Remaining to be Incurred	0.0		0.0
Land Management | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.1		0.1
Amounts Incurred During the nine months ended July 31, 2019			0.1
Amounts Remaining to be Incurred	$ 0.0		$ 0.0