Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Nov. 30, 2017	Nov. 30, 2016
Income Tax Disclosure [Abstract]
Deferred tax assets, Employee benefit liabilities	$ 146.8	$ 184.5
Deferred tax assets, Other accrued liabilities	51.7	42.2
Deferred tax assets, Inventory	12.4	5.5
Deferred tax assets, Tax loss and credit carry forwards	50.2	39.3
Deferred tax assets, Other	18.7	15.1
Deferred tax assets, Valuation allowance	(26.0)	(10.5)
Deferred tax assets, total	253.8	276.1
Deferred tax liabilities, Depreciation	52.3	38.1
Deferred tax liabilities, Intangible assets	1,246.0	262.5
Deferred tax liabilities, Other	6.1	6.1
Deferred Tax Liabilities, Gross	1,304.4	306.7
Deferred tax liabilities, total	$ (1,050.6)	$ (30.6)