Financial Instruments (Carrying Amount And Fair Value Of Financial Instruments) (Details) - USD ($) $ in Millions	Nov. 30, 2015	Nov. 30, 2014
Derivative [Line Items]
Long-term investments, Carrying amount	$ 112.6	$ 113.0
Long-term investments, Fair value	112.6	113.0
Long-term debt, Carrying amount	1,256.2	1,015.3
Long-term debt, Fair value	1,325.6	1,109.0
Other Current Assets [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Interest Rate Derivatives, at Fair Value, Net	2.5	7.4
Other Current Assets [Member] | Foreign Exchange Contracts [Member]
Derivative [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	3.4	4.9
Other Accrued Liabilities [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Interest rate derivatives	0.6	0.0
Other Accrued Liabilities [Member] | Foreign Exchange Contracts [Member]
Derivative [Line Items]
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net	$ 0.7	$ 1.4