Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2021	Jun. 30, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 12,608	$ 12,569	$ 12,595
Finite-Lived Intangible Assets, Accumulated Amortization		(2,205)	(2,906)	(2,561)
Finite-Lived Intangible Assets, Net		10,403	9,663	10,034
Indefinite-lived Intangible Assets (Excluding Goodwill)		10	10	10
Intangible Assets, Gross (Excluding Goodwill)		12,618	12,579	12,605
Total other intangible assets		10,413	9,673	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		(444)	(698)	(571)
Finite-Lived Intangible Assets, Net		5,821	5,567	5,694
Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,966	1,936	1,953
Finite-Lived Intangible Assets, Accumulated Amortization		(434)	(538)	(487)
Finite-Lived Intangible Assets, Net		1,532	1,398	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		(603)	(753)	(679)
Finite-Lived Intangible Assets, Net		882	732	806
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		2,013	2,009	2,012
Finite-Lived Intangible Assets, Accumulated Amortization		(132)	(211)	(172)
Finite-Lived Intangible Assets, Net		1,881	1,798	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		(349)	(444)	(396)
Finite-Lived Intangible Assets, Net		126	31	79
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	404	399	405
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(243)	(262)	(256)
Finite-Lived Intangible Assets, Net	[1]	$ 161	$ 137	$ 149

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