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	Treasury Stock [Member]	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] Treasury Stock [Member]	EID [Member] Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2017	$ 79,593	$ 0	$ 0		$ 80,318		$ 0	$ (1,177)	$ 0	$ 452	$ 79,593		$ 0		$ 0	$ 0		$ 80,557		$ 0	$ (1,177)	$ 0	$ 213
Net (loss) income	(87)				(107)					20	(87)							(105)					18
Other comprehensive income (loss)	1,007							1,007			1,007										1,007
Dividends, Preferred Stock											(2)							(2)
Distributions	(830)				(830)						(831)							(830)					(1)
Issuance of DowDuPont stock	45				45						45							45
Share-based compensation	11				11						11							11
Other	487				434					53	490							434					56
Ending Balance at Mar. 31, 2018	80,226	0	0		79,871		0	(170)	0	525	80,226		0		0	0		80,110		0	(170)	0	286
Beginning Balance at Dec. 31, 2017	79,593	0	0		80,318		0	(1,177)	0	452	79,593		0		0	0		80,557		0	(1,177)	0	213
Net (loss) income	611										611
Other comprehensive income (loss)	(1,008)							(1,008)			(1,008)
Distributions	(1,658)										(1,658)
Contributions	23										23
Ending Balance at Jun. 30, 2018	77,703	0	0		79,390		0	(2,185)	0	498	77,703		0		0	0		79,629		0	(2,185)	0	259
Beginning Balance at Mar. 31, 2018	80,226	0	0		79,871		0	(170)	0	525	80,226		0		0	0		80,110		0	(170)	0	286
Net (loss) income	698				694					4	698							697					1
Other comprehensive income (loss)	(2,015)							(2,015)			(2,015)										(2,015)
Dividends, Preferred Stock											(3)							(3)
Distributions	(828)				(828)						(828)							(828)
Issuance of DowDuPont stock	12				12						12							12
Share-based compensation	50				50						50							50
Other	(440)				(409)					(31)	(437)							(409)					(28)
Ending Balance at Jun. 30, 2018	77,703	0	0		79,390		0	(2,185)	0	498	77,703		0		0	0		79,629		0	(2,185)	0	259
Beginning Balance at Dec. 31, 2018	75,153	0	0		78,020		0	(3,360)	0	493	75,153		0		0	0		78,259		0	(3,360)	0	254
Net (loss) income	176				164					12	176							166					10
Other comprehensive income (loss)	(74)							(74)			(74)										(74)
Dividends, Preferred Stock											(2)							(2)
Distributions	(317)				(317)						(317)							(317)
Contributions	88				88						88							88
Issuance of DowDuPont stock	35				35						35							35
Share-based compensation	18				18						18							18
Other	(5)				(3)					(2)	(3)							(3)
Ending Balance at Mar. 31, 2019	75,074	0	0		78,005		0	(3,434)	0	503	75,074		0		0	0		78,244		0	(3,434)	0	264
Beginning Balance at Dec. 31, 2018	75,153	0	0		78,020		0	(3,360)	0	493	75,153		0		0	0		78,259		0	(3,360)	0	254
Net (loss) income	(418)										(441)
Other comprehensive income (loss)	(229)							(229)			(229)
Distributions	(317)										(317)
Contributions	7,396										3,255
Ending Balance at Jun. 30, 2019	26,143	7	28,157		0		97	(2,375)	0	257	22,077		239		0	24,023		0		172	(2,375)	0	18
Beginning Balance at Mar. 31, 2019	75,074	0	0		78,005		0	(3,434)	0	503	75,074		0		0	0		78,244		0	(3,434)	0	264
Net (loss) income	(594)				(805)		197			14	(617)							(806)		180			9
Other comprehensive income (loss)	(155)							(155)			(155)										(155)
Dividends, Common Stock	(97)						(97)
Dividends, Preferred Stock											(5)									(5)
Contributions	7,308				7,308						3,168							3,168
Issuance of DowDuPont stock	4				4						4							4
Share-based compensation	55		11		44						55					11		44
Impact of Internal Reorganization	(55,420)				(56,403)			1,214		(231)	(55,420)							(56,403)			1,214		(231)
Reclassification of Divisional Equity to APIC	0	7	28,146	[1]	(28,153)	[1]					0	[2]	239	[2]		24,012	[2]	(24,251)	[2]
Other	(32)						(3)			(29)	(27)									(3)			(24)
Ending Balance at Jun. 30, 2019	$ 26,143	$ 7	$ 28,157		$ 0		$ 97	$ (2,375)	$ 0	$ 257	$ 22,077		$ 239		$ 0	$ 24,023		$ 0		$ 172	$ (2,375)	$ 0	$ 18

[1] Upon the completion of the Internal Reorganizations, Corteva's capital structure was established and Corteva's divisional equity was reclassified.

[2] Upon the completion of the Internal Reorganizations, EID's divisional equity was reclassified.