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Contingent Liabilities and Environmental Reserves - Additional Information (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2019 USD ($) facility | Oct. 31, 2018 USD ($) | Mar. 03, 2016 USD ($)
Site Contingency [Line Items] |  |  |
Environmental liability reserves | $ 18.7 | $ 6.8 | $ 1,380.0
Diamond Alkali |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | 11.2 |  |
European Drum Facilities |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | 3.3 | 3.7 |
Life Cycle Management and Recycling Facilities |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | 0.1 | 0.2 |
Sites Owned by Others |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | 0.3 | 0.9 |
Paper Packaging & Services |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | 2.0 | 1.0 |
Other Facilities |  |  |
Site Contingency [Line Items] |  |  |
Environmental liability reserves | $ 1.8 | 1.0 |
Container Life Cycle Management LLC | Flexible Packaging JV |  |  |
Site Contingency [Line Items] |  |  |
Number of reconditioning facilities subject to litigation | facility | 3 |  |
Flexible Products & Services |  |  |
Site Contingency [Line Items] |  |  |
Estimated litigation liability | $ 0.6 | $ 2.0 |

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