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Restructuring and Other Charges, Net - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Facility Position	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Facility	Dec. 31, 2019 Position
Restructuring Cost and Reserve [Line Items]
Number of facilities closed | Facility					21
Restructuring Charges	$ 24.0	$ 2.0	$ 28.0	$ 7.0
Severance Costs	3.0	$ 0.0	6.0	$ 0.0
Restructuring Reserve	42.0		42.0		$ 14.0
Additional Charges (Reversals), Net			$ 28.0
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	28.0		28.0		0.0
Additional Charges (Reversals), Net			$ 25.0
Employee Severance | Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Number of facilities closed | Facility			22
Restructuring Charges			$ 29.0
Payments for restructuring			60.0
Restructuring Reserve	3.0		3.0		3.0
Additional Charges (Reversals), Net			2.0
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	6.0		6.0		6.0
Additional Charges (Reversals), Net			0.0
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.0		1.0		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

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