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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 | 9 Months Ended
--- | --- | ---
Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2023 | Jul. 31, 2022
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | $ 22.8 |  | $ 22.8 |
Amounts Incurred During the Nine Months Ended July 31, 2023 | 8.7 | $ 3.1 | 13.5 | $ 10.3
Amounts Remaining to be Incurred | 9.3 |  | 9.3 |
Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the Nine Months Ended July 31, 2023 | 6.5 |  | 9.2 |
Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the Nine Months Ended July 31, 2023 | 2.2 |  | 4.3 |
Global Industrial Packaging |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 8.1 |  | 8.1 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 4.2 |
Amounts Remaining to be Incurred | 3.9 |  | 3.9 |
Global Industrial Packaging | Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 5.9 |  | 5.9 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 3.0 |
Amounts Remaining to be Incurred | 2.9 |  | 2.9 |
Global Industrial Packaging | Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 2.2 |  | 2.2 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 1.2 |
Amounts Remaining to be Incurred | 1.0 |  | 1.0 |
Paper Packaging & Services |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 14.7 |  | 14.7 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 9.3 |
Amounts Remaining to be Incurred | 5.4 |  | 5.4 |
Paper Packaging & Services | Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 6.2 |  | 6.2 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 6.2 |
Amounts Remaining to be Incurred | 0.0 |  | 0.0 |
Paper Packaging & Services | Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 8.5 |  | 8.5 |
Amounts Incurred During the Nine Months Ended July 31, 2023 |  |  | 3.1 |
Amounts Remaining to be Incurred | $ 5.4 |  | $ 5.4 |

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