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, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018	Oct. 31, 2018
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	$ 35.6		$ 35.6
Amounts Incurred During the six months ended April 30, 2019	7.5	$ 6.0	11.2	$ 10.1
Amounts Remaining to be Incurred	24.4		24.4		$ 12.0
Employee Separation Costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the six months ended April 30, 2019	7.0		10.5
Other Costs
Restructuring and Related Costs [Line Items]
Amounts Incurred During the six months ended April 30, 2019	0.5		0.7
Rigid Industrial Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	31.2		31.2
Amounts Incurred During the six months ended April 30, 2019			8.0
Amounts Remaining to be Incurred	23.2		23.2
Rigid Industrial Packaging & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	24.5		24.5
Amounts Incurred During the six months ended April 30, 2019			7.3
Amounts Remaining to be Incurred	17.2		17.2
Rigid Industrial Packaging & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	6.7		6.7
Amounts Incurred During the six months ended April 30, 2019			0.7
Amounts Remaining to be Incurred	6.0		6.0
Flexible Products & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	1.2		1.2
Amounts Incurred During the six months ended April 30, 2019			0.0
Amounts Remaining to be Incurred	1.2		1.2
Flexible Products & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.0		0.0
Amounts Incurred During the six months ended April 30, 2019			0.0
Amounts Remaining to be Incurred	0.0		0.0
Flexible Products & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	1.2		1.2
Amounts Incurred During the six months ended April 30, 2019			0.0
Amounts Remaining to be Incurred	1.2		1.2
Paper Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	3.1		3.1
Amounts Incurred During the six months ended April 30, 2019			3.1
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	3.1		3.1
Amounts Incurred During the six months ended April 30, 2019			3.1
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	0.0		0.0
Amounts Incurred During the six months ended April 30, 2019			0.0
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 six months ended April 30, 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 six months ended April 30, 2019			0.1
Amounts Remaining to be Incurred	0.0		0.0
Land Management | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.0		0.0
Amounts Incurred During the six months ended April 30, 2019			0.0
Amounts Remaining to be Incurred	$ 0.0		$ 0.0