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Restructuring and Other Charges, Net - Changes in Employee-Related Restructuring Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Reserve [Roll Forward]
Beginning Balance			$ 14.0
Additional Charges (Reversals), Net			28.0
Additional charges, net	$ 24.0	$ 2.0	28.0	$ 7.0
Payments			(4.0)
Ending Balance	42.0		42.0
Business Combination, Restructuring Liabilities			4.0
Nutrition & Biosciences, Inc
Restructuring Reserve [Roll Forward]
Business Combination, Restructuring Liabilities			4.0
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning Balance			2.0
Additional Charges (Reversals), Net			0.0
Payments			(1.0)
Ending Balance	1.0		1.0
Employee Severance | Nutrition & Biosciences, Inc
Restructuring Reserve [Roll Forward]
Beginning Balance			0.0
Additional Charges (Reversals), Net			25.0
Payments			(1.0)
Ending Balance	28.0		28.0
Other
Restructuring Reserve [Roll Forward]
Beginning Balance			0.0
Additional Charges (Reversals), Net			1.0
Payments			0.0
Ending Balance	1.0		1.0
Frutarom Integration Initiative | Employee Severance
Restructuring Reserve [Roll Forward]
Beginning Balance			3.0
Additional Charges (Reversals), Net			2.0
Additional charges, net			29.0
Payments			(2.0)
Ending Balance	3.0		3.0
Frutarom Integration Initiative | Other
Restructuring Reserve [Roll Forward]
Beginning Balance			3.0
Additional Charges (Reversals), Net			0.0
Payments			0.0
Ending Balance	3.0		3.0
2019 Severance Initiatives | Employee Severance
Restructuring Reserve [Roll Forward]
Beginning Balance			6.0
Additional Charges (Reversals), Net			0.0
Additional charges, net			21.0
Payments			0.0
Ending Balance	6.0		6.0
Taste
Restructuring Reserve [Roll Forward]
Additional charges, net	17.0	2.0	20.0	7.0
Scent [Member]
Restructuring Reserve [Roll Forward]
Additional charges, net	2.0	0.0	3.0	0.0
Health & Biosciences
Restructuring Reserve [Roll Forward]
Additional charges, net	4.0	0.0	4.0	0.0
Pharma Solutions
Restructuring Reserve [Roll Forward]
Additional charges, net	$ 1.0	$ 0.0	$ 1.0	$ 0.0

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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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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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
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