Consolidated Statements of Equity - USD ($) $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent		Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance (Predecessor [Member]) at Dec. 31, 2015	$ 10,200	$ 237	$ 288	$ 11,081	$ 14,510	$ (9,396)		$ (6,727)	$ 207
Net (loss) income | Predecessor [Member]	2,525				2,513				12
Net other comprehensive income (loss) | Predecessor [Member]	(515)					(515)
Dividends, Common Stock | Predecessor [Member]	(1,347)				(1,331)				(16)
Dividends, Preferred Stock | Predecessor [Member]	(10)				(10)
Common stock issued - compensation plans | Predecessor [Member]	268		1	267
Common stock repurchased | Predecessor [Member]	(916)							(916)
Common stock retired | Predecessor [Member]	0		(4)	(154)	(758)			916
Sale of a majority interest in consolidated subsidiary | Predecessor [Member]	(9)			(4)					(5)
Ending Balance (Predecessor [Member]) at Dec. 31, 2016	10,196	237	285	11,190	14,924	(9,911)		(6,727)	198
Net (loss) income | Predecessor [Member]	1,761				1,741				20
Net other comprehensive income (loss) | Predecessor [Member]	1,289					1,289
Dividends, Common Stock | Predecessor [Member]	(995)				(991)				(4)
Dividends, Preferred Stock | Predecessor [Member]	(7)				(7)
Common stock issued - compensation plans | Predecessor [Member]	275		2	273
Common stock repurchased | Predecessor [Member]	0
Common stock retired | Predecessor [Member]	0		(26)	(1,044)	(5,657)			6,727
Sale of a majority interest in consolidated subsidiary | Predecessor [Member]	(2)								(2)
Ending Balance (Predecessor [Member]) at Aug. 31, 2017	12,517	237	261	10,419	10,010	(8,622)		0	212
Ending Balance (Successor [Member]) at Aug. 31, 2017	75,081	239	0	74,680	0	0	[1]	0	162
Net (loss) income | Successor [Member]	1,010				1,010				0
Net other comprehensive income (loss) | Successor [Member]	(381)					(381)
Dividends, Common Stock | Successor [Member]
Dividends, Preferred Stock | Successor [Member]	(3)				(3)
Distributions to DowDuPont | Successor [Member]	(829)				(829)
Issuance of DowDuPont stock | Successor [Member]	30			30
Stock-based compensation | Successor [Member]	36			36
Sale of a majority interest in consolidated subsidiary | Successor [Member]	(4)								(4)
Acquisition of a noncontrolling interest in a consolidated subsidiary | Successor [Member]	3								3
Stockholders' Equity, Other | Successor [Member]	(11)			(19)	(3)				11
Ending Balance (Successor [Member]) at Dec. 31, 2017		239	0	74,727	175	(381)		0	172
Ending Balance at Dec. 31, 2017	74,932
Net (loss) income | Successor [Member]	(5,018)				(5,029)				11
Net other comprehensive income (loss) | Successor [Member]	(2,122)					(2,122)
Dividends, Preferred Stock | Successor [Member]	(10)				(10)
Distributions to DowDuPont | Successor [Member]	(2,806)				(2,806)
Issuance of DowDuPont stock | Successor [Member]	85			85
Stock-based compensation | Successor [Member]	129			129
Stockholders' Equity, Other | Successor [Member]	49				1				48
Capital Contributions from DowDuPont | Successor [Member]	4,849			4,849
Ending Balance (Successor [Member]) at Dec. 31, 2018	70,088	$ 239	$ 0	$ 79,790	$ (7,669)	$ (2,503)		$ 0	$ 231
Ending Balance at Dec. 31, 2018	$ 70,088

[1] In connection with the Merger, previously unrecognized prior service benefits and net losses related to Historical DuPont's pension and other post employment benefit ("OPEB") plans were eliminated as a result of reflecting the balance sheet at fair value as of the date of the Merger. See Note 3 and 18 for further information regarding the Merger and pension and OPEB plans, respectively.