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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, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | $ 34.5 |  | $ 34.5 |
Amounts Incurred During the six months ended April 30, 2021 | 12.0 | $ 4.4 | 15.1 | $ 7.7
Amounts Remaining to be Incurred | 19.4 |  | 19.4 |
Employee Separation Costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the six months ended April 30, 2021 | 9.1 |  | 10.6 |
Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the six months ended April 30, 2021 | 2.9 |  | 4.5 |
Global Industrial Packaging |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 26.3 |  | 26.3 |
Amounts Incurred During the six months ended April 30, 2021 |  |  | 12.9 |
Amounts Remaining to be Incurred | 13.4 |  | 13.4 |
Global Industrial Packaging | Employee Separation Costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 18.4 |  | 18.4 |
Amounts Incurred During the six months ended April 30, 2021 |  |  | 10.5 |
Amounts Remaining to be Incurred | 7.9 |  | 7.9 |
Global Industrial Packaging | Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 7.9 |  | 7.9 |
Amounts Incurred During the six months ended April 30, 2021 |  |  | 2.4 |
Amounts Remaining to be Incurred | 5.5 |  | 5.5 |
Paper Packaging & Services |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 8.1 |  | 8.1 |
Amounts Incurred During the six months ended April 30, 2021 |  |  | 2.1 |
Amounts Remaining to be Incurred | 6.0 |  | 6.0 |
Paper Packaging & Services | Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 8.1 |  | 8.1 |
Amounts Incurred During the six months ended April 30, 2021 |  |  | 2.1 |
Amounts Remaining to be Incurred | 6.0 |  | 6.0 |
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, 2021 |  |  | 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, 2021 |  |  | 0.1 |
Amounts Remaining to be Incurred | $ 0.0 |  | $ 0.0 |

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