Statement of Stockholders Equity Statement - USD ($) $ in Millions	Total		Common Stock [Member]	Additional Paid-in Capital [Member]	Divisional Equity [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] Divisional Equity [Member]	EID [Member] Retained Earnings [Member]	EID [Member] Accumulated Other Comp (Loss) Income	EID [Member] Noncontrolling Interest [Member]	DowDuPont [Member]	DowDuPont [Member] Divisional Equity [Member]	DowDuPont [Member] EID [Member]	DowDuPont [Member] EID [Member] Divisional Equity [Member]	Corteva [Member]	Corteva [Member] Additional Paid-in Capital [Member]	Corteva [Member] EID [Member]	Corteva [Member] EID [Member] Additional Paid-in Capital [Member]
Beginning Balance at Dec. 31, 2018	$ 75,153		$ 0	$ 0	$ 78,020	$ 0	$ (3,360)	$ 493	$ 75,153	$ 0	$ 0	$ 0	$ 78,259	$ 0	$ (3,360)	$ 254
Net income (loss)	176				164			12	176				166			10
Other comprehensive (loss) income	(74)						(74)		(74)						(74)
Distributions	(317)				(317)														$ (317)	$ (317)
Issuance of Stock	35												35				$ 35	$ 35
Share-based compensation	18				18				18				18
Contributions	88				88				88				88
Dividends, Preferred Stock									(2)				(2)
Other	(5)				(3)			(2)	(3)				(3)
Ending Balance at Mar. 31, 2019	75,074		0	0	78,005	0	(3,434)	503	75,074	0	0	0	78,244	0	(3,434)	264
Beginning Balance at Dec. 31, 2018	75,153		0	0	78,020	0	(3,360)	493	75,153	0	0	0	78,259	0	(3,360)	254
Net income (loss)	(418)	[1]							(441)
Other comprehensive (loss) income	(229)						(229)		(229)
Distributions	(317)	[1]							(317)
Contributions	7,396	[1]							3,255
Ending Balance at Jun. 30, 2019	26,067		7	28,081	0	97	(2,375)	257	22,001	239	0	23,947	0	172	(2,375)	18
Beginning Balance at Mar. 31, 2019	75,074		0	0	78,005	0	(3,434)	503	75,074	0	0	0	78,244	0	(3,434)	264
Net income (loss)	(594)				(805)	197		14	(617)				(806)	180		9
Other comprehensive (loss) income	(155)						(155)		(155)						(155)
Issuance of Stock	4				4								4				$ 4
Share-based compensation	55			11	44				55			11	44
Contributions	7,308				7,308				3,168				3,168
Dividends, Common Stock	(97)					(97)
Dividends, Preferred Stock									(5)					(5)
Stockholders' Equity Note, Spinoff Transaction	(55,496)				(56,479)		1,214	(231)	(55,496)				(56,479)		1,214	(231)
Adjustments to Additional Paid in Capital, Other	0		7	28,070	(28,077)				0	239		23,936	(24,175)
Other	(32)					(3)		(29)	(27)					(3)		(24)
Ending Balance at Jun. 30, 2019	26,067		7	28,081	0	97	(2,375)	257	22,001	239	0	23,947	0	172	(2,375)	18
Beginning Balance at Dec. 31, 2019	24,555		7	27,997		(425)	(3,270)	246	20,528	239	0	23,958		(406)	(3,270)	7
Net income (loss)	282					272		10	258					250		8
Other comprehensive (loss) income	(663)						(663)		(663)						(663)
Issuance of Stock																					$ 14	$ 14	$ 14	$ 14
Share-based compensation	2			2					2			2
Dividends, Common Stock	(97)			(97)
Dividends, Preferred Stock									(2)			(2)
Common stock repurchase	(50)			(50)
Other	36			40		(2)		(2)	30			32		(2)
Ending Balance at Mar. 31, 2020	24,079		7	27,906		(155)	(3,933)	254	20,167	239	0	24,004		(158)	(3,933)	15
Beginning Balance at Dec. 31, 2019	24,555		7	27,997		(425)	(3,270)	246	20,528	239	0	23,958		(406)	(3,270)	7
Net income (loss)	1,048								1,000
Other comprehensive (loss) income	(575)						(575)		(575)
Distributions	0								0
Contributions	0								0
Ending Balance at Jun. 30, 2020	24,801		7	27,891		508	(3,845)	240	20,956	239	0	23,981		580	(3,845)	1
Beginning Balance at Mar. 31, 2020	24,079		7	27,906		(155)	(3,933)	254	20,167	239	0	24,004		(158)	(3,933)	15
Net income (loss)	766					760		6	742					739		3
Other comprehensive (loss) income	88						88		88						88
Issuance of Stock																					$ 3	$ 3	$ 3	$ 3
Share-based compensation	19			19					19			19
Dividends, Common Stock	(97)					(97)
Dividends, Preferred Stock									(3)					(3)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	(52)			(37)				(15)	(52)			(37)				(15)
Other	(5)							(5)	(8)			(8)		2		(2)
Ending Balance at Jun. 30, 2020	$ 24,801		$ 7	$ 27,891		$ 508	$ (3,845)	$ 240	$ 20,956	$ 239	$ 0	$ 23,981		$ 580	$ (3,845)	$ 1

[1] The cash flows for the six months ended June 30, 2019 includes cash flows of EID's ECP and Specialty Products Entities.