Restructuring and Integration Costs (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2015	Oct. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and related activities, completion date		Oct. 31, 2016
Sauflon [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 104.0	$ 104.0
Additions during the period		20.6	$ 36.1
Integration costs	10.7	24.7	2.8
Sauflon [Member] | Additional Manufacturing Restructuring Activities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	42.0	42.0
Sauflon [Member] | Product Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	80.0	80.0
Additions during the period		26.2	15.3
Sauflon [Member] | Product Rationalization [Member] | Cost of sales [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	12.4	26.2	15.3
Sauflon [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	18.0	18.0
Additions during the period		(5.9)	20.3
Sauflon [Member] | Employee Severance [Member] | Cost of sales [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	0.3
Sauflon [Member] | Employee Severance [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	(2.3)	(6.7)	19.7
Sauflon [Member] | Employee Severance [Member] | Research and development expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	0.2	0.5	0.6
Sauflon [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	6.0	6.0
Additions during the period		$ 0.3	0.5
Sauflon [Member] | Facility Closing [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	$ 0.3		$ 0.5