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Summary Of Significant Accounting Policies (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Nov. 30, 2015
Summary Of Significant Accounting Policies [Line Items]      
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification $ 10.7    
Useful life 12 years    
Capitalized software $ 12.8 $ 21.8 $ 9.4
Shipping and handling expense 115.4 97.2 95.8
Research and development expense 66.1 61.0 60.8
Brand marketing support costs 276.3 252.2 240.6
Advertising expense $ 117.8 $ 102.9 $ 106.8
Minimum [Member] | Headquarters building [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful lives (in years) 20 years    
Minimum [Member] | Machinery, Equipment And Computer Software [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful lives (in years) 3 years    
Minimum [Member] | Software [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Useful life 3 years    
Maximum [Member] | Headquarters building [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful lives (in years) 50 years    
Maximum [Member] | Machinery, Equipment And Computer Software [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful lives (in years) 12 years    
Maximum [Member] | Software [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Useful life 8 years