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Summary Of Significant Accounting Policies (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
Feb. 28, 2018
Nov. 30, 2017
Aug. 31, 2017
May 31, 2017
Feb. 28, 2017
Nov. 30, 2018
Nov. 30, 2017
Nov. 30, 2016
Summary Of Significant Accounting Policies [Line Items]                      
Useful life                 11 years    
Capitalized software $ 13.2       $ 12.8       $ 13.2 $ 12.8 $ 21.8
Shipping and transportation costs                 173.7 111.0 91.2
Research and development expense                 69.4 66.1 61.0
Marketing and Advertising Expense                 324.8 276.3 252.2
Advertising expense                 147.2 117.8 102.9
Tax Cuts and Jobs Act of 2017, reclassification from AOCI to retained earnings                 20.9    
Decrease of annual net sales (1,499.2) $ (1,345.3) $ (1,327.3) $ (1,237.1) (1,490.9) $ (1,185.2) $ (1,114.3) $ (1,043.7) (5,408.9) (4,834.1) (4,411.5)
Increase (decrease) in cost of goods sold                 3,037.3 2,823.9 2,579.8
Increase (decrease) in selling, general and administrative expense                 1,429.5 1,244.8 1,175.0
Increase (decrease) in operating income $ 294.9 $ 233.0 $ 191.7 $ 183.7 $ 266.9 $ 168.7 $ 132.6 $ 134.2 903.3 702.4 641.0
Increase (decrease) of other income (expense), net                 $ 12.6 3.5 4.2
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    
Accounting Standards Update 2014-09 [Member]                      
Summary Of Significant Accounting Policies [Line Items]                      
Increase (decrease) in cost of goods sold                 $ 173.7 111.0 91.2
Accounting Standards Update 2014-09 [Member] | Minimum [Member]                      
Summary Of Significant Accounting Policies [Line Items]                      
Decrease of annual net sales                 100.0    
Increase (decrease) in selling, general and administrative expense                 (273.7) (211.0) (191.2)
Accounting Standards Update 2014-09 [Member] | Maximum [Member]                      
Summary Of Significant Accounting Policies [Line Items]                      
Decrease of annual net sales                 110.0    
Increase (decrease) in selling, general and administrative expense                 (283.7) (221.0) (201.2)
Accounting Standards Update 2017-07 [Member]                      
Summary Of Significant Accounting Policies [Line Items]                      
Increase (decrease) in cost of goods sold                 2.7 1.5 (1.2)
Increase (decrease) in selling, general and administrative expense                 9.6 1.2 (7.2)
Increase (decrease) in operating income                 (12.3) (2.7) 8.4
Increase (decrease) of other income (expense), net                 $ 12.2 $ 2.6 $ (8.4)