Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross		$ 12,972	$ 12,923	$ 12,986
Finite-Lived Intangible Assets, Accumulated Amortization		(4,549)	(4,052)	(3,907)
Finite-Lived Intangible Assets, Net		8,423	8,871	9,079
Indefinite-lived Intangible Assets (Excluding Goodwill)		5	5	5
Intangible Assets, Gross (Excluding Goodwill)		12,977	12,928	12,991
Total other intangible assets		8,428	8,876	9,084
In Process Research and Development [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)		5	5	5
Germplasm [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross		6,291	6,291	6,291
Finite-Lived Intangible Assets, Accumulated Amortization		(1,524)	(1,336)	(1,272)
Finite-Lived Intangible Assets, Net		4,767	4,955	5,019
Customer-Related Intangible Assets [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross		2,398	2,350	2,413
Finite-Lived Intangible Assets, Accumulated Amortization		(987)	(863)	(844)
Finite-Lived Intangible Assets, Net		1,411	1,487	1,569
Developed Technology Rights [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross		1,839	1,838	1,838
Finite-Lived Intangible Assets, Accumulated Amortization		(1,264)	(1,161)	(1,126)
Finite-Lived Intangible Assets, Net		575	677	712
Trademarks and Trade Names [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross		2,056	2,056	2,056
Finite-Lived Intangible Assets, Accumulated Amortization		(445)	(380)	(359)
Finite-Lived Intangible Assets, Net		1,611	1,676	1,697
Other Intangible Assets [Member]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	388	388	388
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(329)	(312)	(306)
Finite-Lived Intangible Assets, Net	[1]	$ 59	$ 76	$ 82

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