Restructuring and Other Charges (Income) - Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Charges [Abstract]
Severance and Employee Benefits	$ 2.5	$ 0.5	$ 6.8	$ 3.8
Other Charges (Income)	0.4	1.5	(6.7)	4.6
Asset Disposal Charges (Income)	0.0	0.0	2.8	8.2
Total	2.9	2.0	2.9	16.6
DuPont Crop restructuring
Restructuring Charges [Abstract]
Severance and Employee Benefits		0.0	0.0	0.0
Other Charges (Income)		0.1	(8.1)	0.6
Asset Disposal Charges (Income)		0.0	2.8	0.0
Total		0.1	(5.3)	0.6
Regional Realignment
Restructuring Charges [Abstract]
Severance and Employee Benefits		0.4		3.8
Other Charges (Income)		0.7		2.2
Asset Disposal Charges (Income)		0.0		0.0
Total		1.1		6.0
Other items (3)
Restructuring Charges [Abstract]
Severance and Employee Benefits	2.5	0.1	6.8	0.0
Other Charges (Income)	0.4	0.7	1.4	1.8
Asset Disposal Charges (Income)	0.0	0.0	0.0	8.2
Total	$ 2.9	$ 0.8	8.2	$ 10.0
Shanghai Municipal People's Government
Restructuring Charges [Abstract]
Gain on land disposition			$ 5.8

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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