Restructuring and Integration Costs Restructuring and Integration Costs (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jan. 31, 2015	Oct. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities, Completion Date	Jan. 31, 2016
Sauflon [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 74.0
Additions during the period	8.8	36.1
Integration Costs	5.9	2.8
Sauflon [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	26.0
Additions during the period	0.1	20.3
Sauflon [Member] | Employee Severance [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period		19.7
Sauflon [Member] | Employee Severance [Member] | Research and development expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	0.1	0.6
Sauflon [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	0	0.5
Sauflon [Member] | Facility Closing [Member] | Selling, general and administrative expense [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period		0.5
Sauflon [Member] | Product Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	48.0
Additions during the period	8.7	15.3
Sauflon [Member] | Product Rationalization [Member] | Cost of sales [Member]
Restructuring Cost and Reserve [Line Items]
Additions during the period	$ 8.7	$ 15.3