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ACQUISITIONS AND DIVESTITURES - Depreciation, Amortization, and Capital Expenditures from Discontinued Operations (Details) - Discontinued Operations, Held-for-Sale - Greif Containerboard Solutions, LLC - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2025 | Jul. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Depreciation and amortization | $ 5.9 | $ 8.1 | $ 24.2 | $ 24.8
Capital expenditures | $ 10.4 | $ 16.5 | $ 21.0 | $ 43.3

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