Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (loss) gain	[1]	$ (284)	$ (397)	$ (229)
Tax benefits (expenses) on exchange (loss) gain		37	62	(5)
Net after-tax exchange (loss) gain		(247)	(335)	(234)
EIDP
Foreign Currency Exchange Gain (Loss) [Line Items]
Net after-tax exchange (loss) gain		1	0	0
Corteva [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Net after-tax exchange (loss) gain		(246)	(335)	(234)
Subsidiary Monetary Position
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (loss) gain		(152)	(371)	(217)
Tax benefits (expenses) on exchange (loss) gain		11	55	(10)
Net after-tax exchange (loss) gain		(141)	(316)	(227)
Hedging Program [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (loss) gain		(132)	(26)	(12)
Tax benefits (expenses) on exchange (loss) gain		26	7	5
Net after-tax exchange (loss) gain		(106)	(19)	(7)
Argentine peso devaluation [Member] | Hedging Program [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (loss) gain		$ (66)	$ (284)	$ (110)

[1] Includes net pre-tax exchange gains (losses) of $(66) million, $(284) million, and $(110) million associated with impacts from the devaluation of the Argentine peso for the years ended December 31, 2024, 2023 and 2022, respectively.