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Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net	[1]	$ (45)	$ (97)	$ (97)	$ (234)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(5)	(7)	(19)	30
Foreign Currency Transaction (Loss) Gain After Tax		(50)	(104)	(116)	(204)
Noncontrolling Interest [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Foreign Currency Transaction (Loss) Gain After Tax		0	0	0	1
Corteva [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Foreign Currency Transaction (Loss) Gain After Tax		(50)	(104)	(116)	(203)
Subsidiary Monetary Position
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		28	(156)	(173)	(199)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(23)	5	(10)	23
Foreign Currency Transaction (Loss) Gain After Tax		5	(151)	(183)	(176)
Hedging Program [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		(73)	59	76	(35)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		18	(12)	(9)	7
Foreign Currency Transaction (Loss) Gain After Tax		$ (55)	$ 47	$ 67	$ (28)
[1] Includes net pre-tax exchange gains (losses) of $(15) million and $(26) million associated with impacts from the devaluation of the Argentine Peso for the three and nine months ended September 30, 2025, respectively, and $(26) million and $(54) million for the three and nine months ended September 30, 2024, respectively.

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Amount, after tax, of realized and unrealized gain (loss) from foreign currency transaction.

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Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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