Supplementary Information Other Income (Expense) - Net (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest income		$ 36	$ 19	$ 75	$ 58
Equity in earnings (losses) of affiliates - net		(1)	(1)	13	4
Net gain (loss) on sales of businesses and other assets		16	1	17	2
Net exchange gains (losses)	[1]	(13)	2	(96)	(47)
Non-operating pension and other post employment benefit credit	[2]	22	326	170	979
Miscellaneous expenses - net	[3]	(37)	31	(90)	17
Other income - net		23	378	89	1,013
Hedging Program [Member]
Net exchange gains (losses)		67	34	24	0
Hedging Program [Member] | Argentine Peso Devaluation [Member]
Net exchange gains (losses)		(32)	(16)	(65)	(53)
Subsidiary Monetary Position
Net exchange gains (losses)		(80)	(32)	(120)	(47)
Segment Reconciling Items [Member]
Interest income		(36)	(19)	(75)	(58)
Net exchange gains (losses)		13	(2)	96	47
Non-operating pension and other post employment benefit credit		$ (9)	$ (315)	(134)	$ (941)
Gain (Loss) on Disposition of Assets	[4]			(5)
Segment Reconciling Items [Member] | Seed [Member]
Gain (Loss) on Disposition of Assets				$ (5)

[1] Includes net pre-tax exchange gains (losses) of $(32) million and $(65) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2022, respectively, and $(16) million and $(53) million for the three and nine months ended September 30, 2021, respectively.

[2] Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized gain (loss), amortization of prior service benefit and settlement gain (loss)).

[3] Miscellaneous income (expenses) - net for the three and nine months ended September 30, 2022 and 2021 includes losses on sale of receivables, tax indemnification adjustments related to changes in indemnification balances as a result of the application of the terms of the Tax Matters Agreement between Corteva and Dow and/or DuPont, and other items. Miscellaneous income (expenses) - net for the three and nine months ended September 30, 2022 also includes estimated settlement reserves, settlement cost associated with the Russia Exit and an Employee Retention Credit, and the nine months ended September 30, 2022 also includes charges associated with the exit of a non-strategic asset. Additionally, the three and nine months ended September 30, 2021 includes a gain from remeasurement of an equity investment and the nine months ended September 30, 2021 includes realized losses on sale of available-for-sale securities.

[4] Incremental gains (losses) associated with activities related to the 2022 Restructuring Actions.