Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 12,600	$ 12,516	$ 12,595
Finite-Lived Intangible Assets, Accumulated Amortization		(2,385)	(3,065)	(2,561)
Finite-Lived Intangible Assets, Net		10,215	9,451	10,034
Indefinite-lived Intangible Assets (Excluding Goodwill)		10	10	10
Intangible Assets, Gross (Excluding Goodwill)		12,610	12,526	12,605
Total other intangible assets		10,225	9,461	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		(507)	(762)	(571)
Finite-Lived Intangible Assets, Net		5,758	5,503	5,694
Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,956	1,890	1,953
Finite-Lived Intangible Assets, Accumulated Amortization		(460)	(550)	(487)
Finite-Lived Intangible Assets, Net		1,496	1,340	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		(641)	(790)	(679)
Finite-Lived Intangible Assets, Net		844	695	806
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		2,012	2,006	2,012
Finite-Lived Intangible Assets, Accumulated Amortization		(152)	(231)	(172)
Finite-Lived Intangible Assets, Net		1,860	1,775	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		(373)	(467)	(396)
Finite-Lived Intangible Assets, Net		102	8	79
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	407	395	405
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(252)	(265)	(256)
Finite-Lived Intangible Assets, Net	[1]	$ 155	$ 130	$ 149

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