Restructuring and Other Charges (Income) - Rollforward of Restructuring Reserves (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 14.9
Restructuring charges	8.4
Cash payments	12.7
Other	(0.1)
Restructuring reserve, ending balance	10.5
Asset retirement obligation	6.7
Restructuring And Other Charges (Income)
Restructuring Reserve [Roll Forward]
Restructuring charges	6.3
DuPont Crop restructuring
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	8.6
Restructuring charges	0.6
Cash payments	4.0
Other	(0.1)
Restructuring reserve, ending balance	5.1
Regional Realignment
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	4.0
Restructuring charges	6.0
Cash payments	5.4
Other	0.0
Restructuring reserve, ending balance	4.6
Other workforce related and facility shutdowns
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	2.3
Restructuring charges	1.8
Cash payments	3.3
Other	0.0
Restructuring reserve, ending balance	$ 0.8