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Acquisitions - Acquisition-related and Restructuring Charges (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Restructuring charges        
Restructuring charges $ 2.1 $ 6.9 $ 18.9 $ 29.7
DuPont Crop restructuring        
Restructuring charges        
Restructuring charges 0.8 6.4 5.8 29.6
DuPont | Legal and Professional Fees        
DuPont Crop Protection Business Acquisition        
Acquisition-related charges $ 0.0 $ 14.4 $ 0.4 $ 40.4