Valuation And Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 25.3	$ 31.5	$ 31.1
Charged to Costs and Expenses	4.1	6.7	3.0
Charged to Other Accounts	(2.3)	(1.7)	0.8
Deductions	(1.3)	(11.2)	(3.4)
Balance at End of Period	25.8	25.3	31.5
Allowance For Doubtful Receivables [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	4.1	4.0	4.5
Charged to Costs and Expenses	1.1	1.5	0.7
Charged to Other Accounts	(0.9)	(0.1)	0
Deductions	(0.3)	(1.3)	(1.2)
Balance at End of Period	4.0	4.1	4.0
Valuation Allowance On Net Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	21.2	27.5	26.6
Charged to Costs and Expenses	3.0	5.2	2.3
Charged to Other Accounts	(1.4)	(1.6)	0.8
Deductions	(1.0)	(9.9)	(2.2)
Balance at End of Period	$ 21.8	$ 21.2	$ 27.5