Schedule II - Valuation and Qualifying Accounts (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2014		Oct. 31, 2013		Oct. 31, 2012
Accounts receivable allowances
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	$ 10.2		$ 11.1		$ 13.5
Charges to Costs and Expenses	18.5		21.0		14.6
Write-offs/Allowance Taken	(18.1)	[1]	(21.9)	[1]	(17.0)	[1]
Balance End of Year	10.6		10.2		11.1
Valuation allowance of deferred tax assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Year	6.2		6.0		5.8
Charges to Costs and Expenses	0.3		0.8		0.5
Write-offs/Allowance Taken	(0.3)	[1]	(0.6)	[1]	(0.3)	[1]
Balance End of Year	$ 6.2		$ 6.2		$ 6.0

[1] Write-offs are net of recoveries