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Significant Accounting Policies - Additional Information (Details)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2018
USD ($)
Dec. 31, 2019
USD ($)
Segment
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jan. 01, 2019
USD ($)
Apr. 01, 2018
Jan. 01, 2018
USD ($)
Significant Accounting Policies [Line Items]              
Number of reportable segments | Segment   3          
Number of product   3          
Additional proceed from sale of accounts receivable   $ 26.0          
Proceed from sale of accounts receivable   138.9 $ 112.9        
Adjustments to reflect inventory at net realizable value   16.0 17.0        
Percentage of inventory determined using FIFO           17.00%  
Cumulative effect of pre-tax change in accounting principle of decrease to cost of goods sold $ 4.0            
Research and development expenses   93.6 89.7 $ 70.8      
Operating lease, right of use assets   150.7 55.0   $ 107.0    
Operating lease, liability   160.4 57.0   109.0    
Deferred rent     2.0        
Property, Plant and Equipment, Net   573.0 598.2   563.0    
Deferred Income Taxes   579.6 576.4   580.8    
Retained earnings   $ 4,237.4 3,832.6 $ 3,479.0 3,845.6   $ 3,477.3
Cease-use liability     7.0        
ASU 840              
Significant Accounting Policies [Line Items]              
Operating lease, right of use assets     52.0        
Property, Plant and Equipment, Net     35.0   (35.2)    
Deferred Income Taxes     4.0   4.4    
Retained earnings     13.0   $ 13.0    
Building and Building Improvements | ASU 840              
Significant Accounting Policies [Line Items]              
Property, Plant and Equipment, Net     $ 35.0        
Minimum              
Significant Accounting Policies [Line Items]              
Intangible assets, estimated useful life (years)   3 years          
Minimum | Building and Building Improvements              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   9 years          
Minimum | Machinery and Equipment              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   3 years          
Minimum | Office Equipment              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   3 years          
Maximum              
Significant Accounting Policies [Line Items]              
Intangible assets, estimated useful life (years)   20 years          
Maximum | Software              
Significant Accounting Policies [Line Items]              
Intangible assets, estimated useful life (years)   10 years          
Maximum | Building and Building Improvements              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   40 years          
Maximum | Machinery and Equipment              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   20 years          
Maximum | Office Equipment              
Significant Accounting Policies [Line Items]              
Property, plant and equipment, useful life   10 years          
Armand Products Company              
Significant Accounting Policies [Line Items]              
Percentage of ownership interest   50.00% 50.00% 50.00%      
ArmaKleen Company              
Significant Accounting Policies [Line Items]              
Percentage of ownership interest   50.00% 50.00% 50.00%