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Schedule II - Consolidated Valuation and Qualifying Accounts and Reserves - (Details) - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Allowance for doubtful accounts |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | $ 4.2 | $ 8.9 | $ 8.8
Charged to Costs and Expenses | 0.6 | 0.4 | 0.5
Charged to Other Accounts | 2.0 | (4.6) | (0.2)
Deductions | 0.0 | (0.5) | (0.2)
Balance at End of Period | 6.8 | 4.2 | 8.9
Environmental reserves |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 6.8 | 7.1 | 6.8
Charged to Costs and Expenses | 12.9 | 1.3 | 1.1
Charged to Other Accounts | (0.9) | (1.6) | (1.1)
Deductions | (0.1) | 0.0 | 0.3
Balance at End of Period | $ 18.7 | $ 6.8 | $ 7.1

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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