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Business Segment Information - Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Oct. 31, 2020	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2020	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 1,161.3	$ 1,083.0	$ 1,158.3	$ 1,112.4	$ 1,232.1	$ 1,252.6	$ 1,213.3	$ 897.0	$ 4,515.0	$ 4,595.0	$ 3,873.8
Rigid Industrial Packaging & Services
Segment Reporting Information [Line Items]
Net sales									2,298.9	2,490.6
Paper Packaging & Services
Segment Reporting Information [Line Items]
Net sales									1,916.9	1,780.0
Flexible Products & Services
Segment Reporting Information [Line Items]
Net sales									272.9	297.5
Land Management
Segment Reporting Information [Line Items]
Net sales									26.3	26.9
United States
Segment Reporting Information [Line Items]
Net sales									2,756.9	2,727.7
United States | Rigid Industrial Packaging & Services
Segment Reporting Information [Line Items]
Net sales									814.0	906.3
United States | Paper Packaging & Services
Segment Reporting Information [Line Items]
Net sales									1,888.4	1,758.8
United States | Flexible Products & Services
Segment Reporting Information [Line Items]
Net sales									28.2	35.7
United States | Land Management
Segment Reporting Information [Line Items]
Net sales									26.3	26.9
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Net sales									1,288.8	1,350.4
Europe, Middle East and Africa | Rigid Industrial Packaging & Services
Segment Reporting Information [Line Items]
Net sales									1,074.3	1,118.0
Europe, Middle East and Africa | Paper Packaging & Services
Segment Reporting Information [Line Items]
Net sales									0.0	0.0
Europe, Middle East and Africa | Flexible Products & Services
Segment Reporting Information [Line Items]
Net sales									214.5	232.4
Europe, Middle East and Africa | Land Management
Segment Reporting Information [Line Items]
Net sales									0.0	0.0
Asia Pacific and Other Americas
Segment Reporting Information [Line Items]
Net sales									469.3	516.9
Asia Pacific and Other Americas | Rigid Industrial Packaging & Services
Segment Reporting Information [Line Items]
Net sales									410.6	466.3
Asia Pacific and Other Americas | Paper Packaging & Services
Segment Reporting Information [Line Items]
Net sales									28.5	21.2
Asia Pacific and Other Americas | Flexible Products & Services
Segment Reporting Information [Line Items]
Net sales									30.2	29.4
Asia Pacific and Other Americas | Land Management
Segment Reporting Information [Line Items]
Net sales									$ 0.0	$ 0.0

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