Earnings Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share of Common Stock Reconciliation

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

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

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