Restructuring and Integration Costs Restructuring and Integration Costs (Narrative) (Details) - Sauflon [Member] - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		$ 148.3
Additions	$ 0.0	56.6	$ 55.6
Business Combination, Integration Related Costs		10.0	35.2
Product Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		129.4
Additions	0.0	56.4	57.7
Product Rationalization [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Additions		56.4	57.7
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		17.8
Additions	0.0	0.0	(2.5)
Employee Severance [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Additions		1.1	4.0
Employee Severance [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions		(1.1)	(7.2)
Employee Severance [Member] | Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions			0.7
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Additions		0.2
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		1.1
Additions	$ 0.0	$ 0.2	0.4
Facility Closing [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions			$ 0.4