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Acquisitions - Acquisition-related and Restructuring Charges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Restructuring charges    
Restructuring charges $ 6.3 $ 6.6
DuPont Crop restructuring    
Restructuring charges    
Restructuring charges 3.3 7.0
DuPont | Legal and Professional Fees    
DuPont Crop Protection Business Acquisition    
Acquisition-related charges $ 0.4 $ 13.0