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Restructuring And Related Cost, Number Of Sites Closed

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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The expected number of positions to be eliminated as a result of restructuring activities.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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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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Restructuring and Other Charges, Net - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Facility Position	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Facility	Dec. 31, 2019 Position
Restructuring Cost and Reserve [Line Items]
Number of facilities closed \| Facility					21
Restructuring Charges	$ 6.0	$ 1.0	$ 34.0	$ 8.0
Severance Costs	22.0	$ 0.0	28.0	$ 0.0
Restructuring Reserve	36.0		36.0		$ 14.0
Additional Charges (Reversals), Net			$ 34.0
Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Expected number of sites closed \| Facility			30
Number of facilities closed \| Facility			1
Employee Severance
Restructuring Cost and Reserve [Line Items]
Number of positions expected to be eliminated \| Position			200
Restructuring Reserve	1.0		$ 1.0		2.0
Additional Charges (Reversals), Net			0.0
Employee Severance \| Nutrition & Biosciences, Inc
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	23.0		23.0		0.0
Additional Charges (Reversals), Net			$ 26.0
Employee Severance \| Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Number of facilities closed \| Facility			22
Restructuring Charges			$ 34.0
Payments for restructuring			43.0
Restructuring Reserve	4.0		4.0		3.0
Additional Charges (Reversals), Net			3.0
Employee Severance \| 2019 Severance Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			21.0
Number of positions expected to be eliminated \| Position						190
Restructuring Reserve	5.0		5.0		6.0
Additional Charges (Reversals), Net			0.0
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0		0.0
Additional Charges (Reversals), Net			1.0
Other \| Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 3.0		3.0		$ 3.0
Additional Charges (Reversals), Net			$ 0.0