Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Nov. 30, 2012	Nov. 30, 2011
Income Tax Expense (Benefit) [Abstract]
Deferred tax assets, Employee benefit liabilities	$ 165.2	$ 152.3
Deferred tax assets, Other accrued liabilities	16.3	16.6
Deferred tax assets, Inventory	14.9	14.6
Deferred tax assets, Tax loss and credit carry forwards	49.7	29.9
Deferred tax assets, Other	11.8	11.6
Deferred tax assets, Valuation allowance	(27.5)	(26.6)
Deferred tax assets, total	230.4	198.4
Deferred tax liabilities, Depreciation	48.3	49.9
Deferred tax liabilities, Intangible assets	158.8	145.3
Deferred tax liabilities, Other	5.9	7.6
Deferred tax liabilities, total	213.0	202.8
Net deferred tax (liability) asset	$ 17.4	$ (4.4)