Restructuring and Integration Costs Restructuring and Integration Costs (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
Restructuring Reserve [Roll Forward]
Restructuring Reserve	$ 3.1	8.9	$ 20.4
Additions	0.0	56.6	55.6
Payments	(1.5)	(5.4)	(9.4)
Non-cash adjustments	(1.1)	(57.0)	(57.7)
Restructuring Reserve	0.5	3.1	8.9
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		17.8
Restructuring Reserve [Roll Forward]
Restructuring Reserve	2.8	8.6	19.9
Additions	0.0	0.0	(2.5)
Payments	(1.5)	(5.2)	(9.0)
Non-cash adjustments	(0.8)	(0.6)	0.2
Restructuring Reserve	0.5	2.8	8.6
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		1.1
Restructuring Reserve [Roll Forward]
Restructuring Reserve	0.3	0.3	0.5
Additions	0.0	0.2	0.4
Payments	0.0	(0.2)	(0.4)
Non-cash adjustments	(0.3)	0.0	(0.2)
Restructuring Reserve	0.0	0.3	0.3
Product Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		129.4
Restructuring Reserve [Roll Forward]
Restructuring Reserve	0.0	0.0	0.0
Additions	0.0	56.4	57.7
Payments	0.0	0.0	0.0
Non-cash adjustments	0.0	(56.4)	(57.7)
Restructuring Reserve	$ 0.0	$ 0.0	$ 0.0