Financial Instruments (Cash Flow Hedges) (Details) (Cash Flow Hedges [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	$ (2.5)	$ (0.4)	$ (0.9)
Gain (loss) reclassified from AOCI	(0.8)	(4.8)	(1.5)
Interest Rate Contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	(0.1)
Terminated Interest Rate Contracts [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI		0	0
Gain (loss) reclassified from AOCI	(1.4)	(1.4)	(1.4)
Foreign Exchange Contracts [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	(2.4)	(0.4)	(0.9)
Gain (loss) reclassified from AOCI	$ 0.6	$ (3.4)	$ (0.1)