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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, 2024 | Jul. 31, 2023 | Jul. 31, 2024 | Jul. 31, 2023
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | $ 15.2 |  | $ 15.2 |
Amounts Incurred During the Nine Months Ended July 31, 2024 | 2.7 | $ 8.7 | 1.6 | $ 13.5
Amounts Remaining to be Incurred | 13.6 |  | 13.6 |
Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the Nine Months Ended July 31, 2024 | 1.8 |  | 5.1 |
Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Amounts Incurred During the Nine Months Ended July 31, 2024 | 0.9 |  | 5.5 |
Global Industrial Packaging |  |  |  |
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, 2024 |  |  | (5.8) |
Amounts Remaining to be Incurred | 5.0 |  | 5.0 |
Global Industrial Packaging | Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | (3.0) |  | (3.0) |
Amounts Incurred During the Nine Months Ended July 31, 2024 |  |  | (6.7) |
Amounts Remaining to be Incurred | 3.7 |  | 3.7 |
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, 2024 |  |  | 0.9 |
Amounts Remaining to be Incurred | 1.3 |  | 1.3 |
Paper Packaging & Services |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 16.0 |  | 16.0 |
Amounts Incurred During the Nine Months Ended July 31, 2024 |  |  | 7.4 |
Amounts Remaining to be Incurred | 8.6 |  | 8.6 |
Paper Packaging & Services | Employee separation costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 3.2 |  | 3.2 |
Amounts Incurred During the Nine Months Ended July 31, 2024 |  |  | 2.8 |
Amounts Remaining to be Incurred | 0.4 |  | 0.4 |
Paper Packaging & Services | Other restructuring costs |  |  |  |
Restructuring and Related Costs [Line Items] |  |  |  |
Total Amounts Expected to be Incurred | 12.8 |  | 12.8 |
Amounts Incurred During the Nine Months Ended July 31, 2024 |  |  | 4.6 |
Amounts Remaining to be Incurred | $ 8.2 |  | $ 8.2 |

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