Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 12,599	$ 12,594	$ 12,595
Finite-Lived Intangible Assets, Accumulated Amortization		(2,025)	(2,739)	(2,561)
Finite-Lived Intangible Assets, Net		10,574	9,855	10,034
Indefinite-lived Intangible Assets (Excluding Goodwill)		10	10	10
Intangible Assets, Gross (Excluding Goodwill)		12,609	12,604	12,605
Total other intangible assets		10,584	9,865	10,044
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		54
Impairment of Intangible Assets Indefinite lived Excluding Goodwill After Tax		41
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)		10	10	10
Germplasm [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		6,265	6,265	6,265
Finite-Lived Intangible Assets, Accumulated Amortization		(380)	(634)	(571)
Finite-Lived Intangible Assets, Net		5,885	5,631	5,694
Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,956	1,953	1,953
Finite-Lived Intangible Assets, Accumulated Amortization		(404)	(515)	(487)
Finite-Lived Intangible Assets, Net		1,552	1,438	1,466
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,485	1,485	1,485
Finite-Lived Intangible Assets, Accumulated Amortization		(565)	(716)	(679)
Finite-Lived Intangible Assets, Net		920	769	806
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		2,013	2,011	2,012
Finite-Lived Intangible Assets, Accumulated Amortization		(112)	(192)	(172)
Finite-Lived Intangible Assets, Net		1,901	1,819	1,840
Favorable Supply Contract [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		475	475	475
Finite-Lived Intangible Assets, Accumulated Amortization		(326)	(420)	(396)
Finite-Lived Intangible Assets, Net		149	55	79
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	405	405	405
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(238)	(262)	(256)
Finite-Lived Intangible Assets, Net	[1]	$ 167	$ 143	$ 149

[1] Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements.