Valuation And Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 25.8	$ 25.3	$ 31.5
Charged to Costs and Expenses	10.6	4.1	6.7
Charged to Other Accounts	(3.3)	(2.3)	(1.7)
Deductions	(10.5)	(1.3)	(11.2)
Balance at End of Period	22.6	25.8	25.3
Allowance For Doubtful Receivables [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	4.0	4.1	4.0
Charged to Costs and Expenses	4.9	1.1	1.5
Charged to Other Accounts	(0.1)	(0.9)	(0.1)
Deductions	(0.8)	(0.3)	(1.3)
Balance at End of Period	8.0	4.0	4.1
Valuation Allowance On Net Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	21.8	21.2	27.5
Charged to Costs and Expenses	5.7	3.0	5.2
Charged to Other Accounts	(3.2)	(1.4)	(1.6)
Deductions	(9.7)	(1.0)	(9.9)
Balance at End of Period	$ 14.6	$ 21.8	$ 21.2