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Acquisitions - Acquisition-related and Restructuring Charges (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Restructuring charges        
Restructuring charges $ 10.5 $ 16.2 $ 16.8 $ 22.8
DuPont Crop restructuring        
Restructuring charges        
Restructuring charges 1.7 16.2 5.0 23.2
DuPont | Legal and Professional Fees        
DuPont Crop Protection Business Acquisition        
Acquisition-related charges $ 0.0 $ 13.0 $ 0.4 $ 26.0