Acquisition And Restructuring Costs (Schedule Of Restructuring Costs) (Details) (USD $) In Millions	9 Months Ended	12 Months Ended
	Jul. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Balance at Beginning of Period	$ 4.3	$ 3.3	$ 0
Additions Charged to Costs of Sales and Restructuring Costs	1.9	16.1	5.1
Payments and Adjustments	5.1	15.1	1.8
Balance at End of Period	1.1	4.3	3.3
Other Current Liabilities [Member]
Balance at Beginning of Period	2.5	3.0	0
Additions Charged to Costs of Sales and Restructuring Costs	0.9	4.4	3.6
Payments and Adjustments	3.2	4.9	0.6
Balance at End of Period	0.2	2.5	3.0
Accelerated Depreciation And Other [Member]
Balance at Beginning of Period	1.8	0.3	0
Additions Charged to Costs of Sales and Restructuring Costs	1.0	11.7	1.5
Payments and Adjustments	1.9	10.2	1.2
Balance at End of Period	$ 0.9	$ 1.8	$ 0.3