Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]
Less valuation allowance	$ 13.3	$ 13.4
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	6.0	6.0	$ 5.3
Additions Charged to Costs and Expenses	2.5	1.7	1.7
(Deductions) Recoveries/Other	0.0	(1.7)	(1.0)
Balance End of Year	8.5	6.0	6.0
Deferred Income Tax Charge [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	13.4	14.5	1.0
Additions Charged to Costs and Expenses	0.0	0.0	13.5
(Deductions) Recoveries/Other	(0.1)	(1.1)	0.0
Balance End of Year	$ 13.3	$ 13.4	14.5
Sauflon [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Less valuation allowance			$ 13.5