Earnings Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Earnings Per Share of Common Stock Reconciliation

	Predecessor
(In millions, except share amounts)	For the Period January 1 through August 31, 2017			For the Year Ended December 31, 2016			For the Year Ended December 31, 2015
Numerator:
Income from continuing operations after income taxes attributable to DuPont	$	1,624		$	2,072		$	1,443
Preferred dividends	(7		)	(10		)	(10		)
Income from continuing operations after income taxes available to DuPont common stockholders	$	1,617		$	2,062		$	1,433
Income from discontinued operations after income taxes available to DuPont common stockholders	117			441			510
Net income available to common stockholders	$	1,734		$	2,503		$	1,943
Denominator:
Weighted-average number of common shares outstanding - Basic	867,888,000			872,560,000			893,992,000
Dilutive effect of the company’s employee compensation plans1	4,532,000			4,476,000			5,535,000
Weighted-average number of common shares outstanding - Diluted1	872,420,000			877,036,000			899,527,000

^1.  Diluted earnings per share considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect.

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Predecessor
	For the Period January 1 through August 31, 2017	For the Year Ended December 31, 2016	For the Year Ended December 31, 2015
Average number of stock options	1,906	4,794,000	4,715,000