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Acquisitions - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	6 Months Ended
	Feb. 01, 2021	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Dec. 15, 2019
Business Acquisition [Line Items]
Common stock, par value, in dollars per share		$ 0.125	$ 0.125			$ 0.125
Cash acquired			$ 193	$ 0
Payments to acquire businesses	$ 7,500
Goodwill		$ 17,250	17,250			$ 5,593
Nutrition & Biosciences, Inc
Business Acquisition [Line Items]
Common stock, par value, in dollars per share	$ 0.125						$ 0.125
Cash acquired	$ 7,359
Net sales		1,693	2,769
Net income (loss)		(85)	(144)
Payments to acquire businesses	15,929
Goodwill	11,788	11,788	11,788		$ 11,762
Transaction related costs		2	91
Deferred tax liabilities		2,370	2,370		$ 2,369
Nutrition & Biosciences, Inc | M&A Advisory Fees
Business Acquisition [Line Items]
Transaction related costs			79
Nutrition & Biosciences, Inc | Professional Services Fees, Legal Fees, And Others
Business Acquisition [Line Items]
Transaction related costs			12
Taste
Business Acquisition [Line Items]
Goodwill		6,208	6,208			4,859
Taste | Nutrition & Biosciences, Inc
Business Acquisition [Line Items]
Goodwill	2,393
Health & Biosciences
Business Acquisition [Line Items]
Goodwill		8,369	8,369			0
Health & Biosciences | Nutrition & Biosciences, Inc
Business Acquisition [Line Items]
Goodwill	7,694
Pharma Solutions
Business Acquisition [Line Items]
Goodwill		$ 1,690	$ 1,690			$ 0
Pharma Solutions | Nutrition & Biosciences, Inc
Business Acquisition [Line Items]
Goodwill	$ 1,701
International Flavors & Fragrances Inc
Business Acquisition [Line Items]
Sale of stock, percentage of ownership after transaction	44.60%
International Flavors & Fragrances Inc | DuPont de Nemours, Inc | Nutrition & Biosciences, Inc
Business Acquisition [Line Items]
Percentage of interests acquired	55.40%

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