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Restructuring and Other Charges (Income) - Rollforward of Restructuring Reserves (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance $ 16.4 $ 14.6
Changes in reserves 23.0 15.8
Cash payments (24.3) (14.3)
Other (0.2) 0.3
Restructuring reserve, ending balance 14.9 16.4
Asset retirement obligation 24.2 30.7
DuPont Crop Restructuring    
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance 13.6 14.5
Changes in reserves 5.7 13.0
Cash payments (10.5) (14.2)
Other (0.2) 0.3
Restructuring reserve, ending balance 8.6 13.6
Regional realignment    
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance 0.0 0.0
Changes in reserves 10.8 0.0
Cash payments (6.8) 0.0
Other 0.0 0.0
Restructuring reserve, ending balance 4.0 0.0
Other workforce related and facility shutdowns    
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance 2.8 0.1
Changes in reserves 6.5 2.8
Cash payments (7.0) (0.1)
Other 0.0 0.0
Restructuring reserve, ending balance 2.3 2.8
Furadan product exit    
Restructuring Reserve [Roll Forward]    
Asset retirement obligation $ 6.0 $ 3.6