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Financial Instruments (Fair Values Of Derivative Instruments) (Details) - USD ($)
$ in Millions
Nov. 30, 2018
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2015
Derivatives, Fair Value [Line Items]        
Fair Value of Asset Derivatives $ 4.4 $ 12.7    
Fair Value of Liability Derivatives 12.8 7.2    
Interest Rate Swap [Member]        
Derivatives, Fair Value [Line Items]        
Derivative, Notional Amount       $ 100.0
Derivative, Fixed Interest Rate     3.25% 3.25%
Foreign Exchange Contracts [Member]        
Derivatives, Fair Value [Line Items]        
Derivative, Notional Amount 160.6      
Foreign Exchange Contracts [Member] | Other Current Assets [Member]        
Derivatives, Fair Value [Line Items]        
Derivative Asset, Notional Amount 199.5 326.3    
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net 4.4 12.7    
Foreign Exchange Contracts [Member] | Other Accrued Liabilities [Member]        
Derivatives, Fair Value [Line Items]        
Total notional amount of interest rate swap contracts 295.4 79.6    
Foreign Currency Fair Value Hedge Derivative at Fair Value, Net 6.4 4.7    
Interest Rate Contracts [Member] | Other Current Assets [Member]        
Derivatives, Fair Value [Line Items]        
Derivative Asset, Notional Amount 0.0 0.0    
Fair Value of Interest rate contracts 0.0 0.0    
Interest Rate Contracts [Member] | Other Accrued Liabilities [Member]        
Derivatives, Fair Value [Line Items]        
Total notional amount of interest rate swap contracts 100.0 100.0    
Interest rate derivatives $ 6.4 $ 2.5