Statement of Stockholders Equity Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comp (Loss) Income	Noncontrolling Interest [Member]	EID [Member]	EID [Member] Preferred Stock [Member]	EID [Member] Common Stock [Member]	EID [Member] Additional Paid-in Capital [Member]	EID [Member] Retained Earnings [Member]	EID [Member] Accumulated Other Comp (Loss) Income	EID [Member] Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2020	$ 25,063	$ 7	$ 27,707	$ 0	$ (2,890)	$ 239	$ 21,601	$ 239	$ 0	$ 24,049	$ 203	$ (2,890)	$ 0
Net income (loss)	603			600		3	592				591		1
Other comprehensive (loss) income	(477)				(477)		(477)					(477)
Common Dividends	(97)		(97)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	38		38				38			38
Repurchase of common stock	(350)		(18)	(332)
Other-net	(2)					(2)	(4)			(4)
Ending Balance at Mar. 31, 2021	24,778	7	27,630	268	(3,367)	240	21,748	239	0	24,083	792	(3,367)	1
Beginning Balance at Dec. 31, 2020	25,063	7	27,707	0	(2,890)	239	21,601	239	0	24,049	203	(2,890)	0
Net income (loss)	1,608						1,578
Other comprehensive (loss) income	(755)				(755)		(755)
Ending Balance at Sep. 30, 2021	24,979	7	27,712	666	(3,645)	239	22,523	239	0	24,158	1,771	(3,645)	0
Beginning Balance at Mar. 31, 2021	24,778	7	27,630	268	(3,367)	240	21,748	239	0	24,083	792	(3,367)	1
Net income (loss)	973			970		3	963				963
Other comprehensive (loss) income	122				122		122					122
Common Dividends	(95)			(95)
Dividends, Preferred Stock							(3)				(3)
Issuance of Corteva Stock	28		28				28			28
Share-based compensation	22		23	(1)			22			23	(1)
Repurchase of common stock	(200)			(200)
Other-net	(3)		1	(1)		(3)	(2)			(3)	1
Ending Balance at Jun. 30, 2021	25,625	7	27,682	941	(3,245)	240	22,878	239	0	24,131	1,752	(3,245)	1
Net income (loss)	32			30		2	23				24		(1)
Other comprehensive (loss) income	(400)				(400)		(400)					(400)
Common Dividends	(103)			(103)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	5		5				5			5
Share-based compensation	25		26	(1)			25			26	(1)
Repurchase of common stock	(200)			(200)
Other-net	(5)		(1)	(1)		(3)	(6)			(4)	(2)
Ending Balance at Sep. 30, 2021	24,979	7	27,712	666	(3,645)	239	22,523	239	0	24,158	1,771	(3,645)	0
Beginning Balance at Dec. 31, 2021	25,623	7	27,751	524	(2,898)	239	23,459	239	0	24,196	1,922	(2,898)	0
Net income (loss)	567			564		3	560				559		1
Other comprehensive (loss) income	77				77		77					77
Common Dividends	(102)			(102)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	40		40				40			40
Share-based compensation	(31)		(31)				(31)			(31)
Repurchase of common stock	(235)			(235)
Other-net	(3)			(1)		(2)	(4)			(3)	(1)
Ending Balance at Mar. 31, 2022	25,936	7	27,760	750	(2,821)	240	24,099	239	0	24,202	2,478	(2,821)	1
Beginning Balance at Dec. 31, 2021	25,623	7	27,751	524	(2,898)	239	23,459	239	0	24,196	1,922	(2,898)	0
Net income (loss)	1,211						1,186
Other comprehensive (loss) income	(694)				(694)		(694)
Ending Balance at Sep. 30, 2022	25,084	7	27,815	614	(3,592)	240	23,999	239	0	24,252	3,098	(3,592)	2
Beginning Balance at Mar. 31, 2022	25,936	7	27,760	750	(2,821)	240	24,099	239	0	24,202	2,478	(2,821)	1
Net income (loss)	972			969		3	965				965
Other comprehensive (loss) income	(402)				(402)		(402)					(402)
Common Dividends	(101)			(101)
Dividends, Preferred Stock							(3)				(3)
Issuance of Corteva Stock	22		22				22			22
Share-based compensation	12		13	(1)			12			13	(1)
Repurchase of common stock	(365)			(365)
Other-net	(3)					(3)	(2)			(2)
Ending Balance at Jun. 30, 2022	26,071	7	27,795	1,252	(3,223)	240	24,691	239	0	24,235	3,439	(3,223)	1
Net income (loss)	(328)			(331)		3	(339)				(339)
Other comprehensive (loss) income	(369)				(369)		(369)					(369)
Common Dividends	(108)			(108)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	4		4				4			4
Share-based compensation	15		16	(1)			15			16	(1)
Repurchase of common stock	(200)			(200)
Other-net	(1)			2		(3)	(1)			(3)	1		1
Ending Balance at Sep. 30, 2022	$ 25,084	$ 7	$ 27,815	$ 614	$ (3,592)	$ 240	$ 23,999	$ 239	$ 0	$ 24,252	$ 3,098	$ (3,592)	$ 2