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Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net	[1]	$ (97)	$ (102)	$ (234)	$ (242)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(7)	15	30	39
Foreign Currency Transaction (Loss) Gain After Tax		(104)	(87)	(204)	(203)
Corteva [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Foreign Currency Transaction (Loss) Gain After Tax		(104)	(87)	(203)	(203)
EIDP
Foreign Currency Exchange Gain (Loss) [Line Items]
Foreign Currency Transaction (Loss) Gain After Tax		0	0	1	0
Subsidiary Monetary Position
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		(156)	(104)	(199)	(182)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		5	19	23	27
Foreign Currency Transaction (Loss) Gain After Tax		(151)	(85)	(176)	(155)
Hedging Program [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		59	2	(35)	(60)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(12)	(4)	7	12
Foreign Currency Transaction (Loss) Gain After Tax		$ 47	$ (2)	$ (28)	$ (48)
[1] Includes net pre-tax exchange gains (losses) of $(26) million and $(54) million associated with impacts from the devaluation of the Argentine Peso for the three and nine months ended September 30, 2024, respectively, and $(83) million and $(150) million for the three and nine months ended September 30, 2023, 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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