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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended 12 Months Ended
Jan. 27, 2012
Jul. 31, 2013
Jul. 31, 2012
Jul. 31, 2011
Property, Plant and Equipment [Line Items]        
Number of manufacturing plants around world   39    
Number of joint ventures   3    
Foreign currency translation gains (loss)   $ 0.2 $ 1.8 $ (4.5)
Number of days considered to review for collectability   90 days    
Inventories valuation, LIFO method to total inventory, in percentage   33.00% 30.00%  
Excess of FIFO inventory cost over LIFO inventory carrying values   37.8 37.4  
Depreciation expense   58.8 55.3 54.5
Capitalization of direct cost, amortization period in years   5 years    
Options excluded from the diluted net earnings per share calculation   22,619 1,063,135 988,698
Stock dividend 100.00%      
Shipping and handling costs   $ 66.2 $ 67.0 $ 61.9
Maximum [Member] | Other Intangible Assets [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   20 years    
Maximum [Member] | Building And Building Improvements [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   40 years    
Maximum [Member] | Machinery And Equipment [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   10 years    
Minimum [Member] | Other Intangible Assets [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   3 years    
Minimum [Member] | Building And Building Improvements [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   10 years    
Minimum [Member] | Machinery And Equipment [Member]
       
Property, Plant and Equipment [Line Items]        
Estimated useful life, years   3 years