Earnings Per Share of Common Stock

12 Months Ended

Dec. 31, 2016

EARNINGS PER SHARE OF COMMON STOCK

Set forth below is a reconciliation of the numerator and denominator for basic and diluted earnings per share calculations for the periods indicated:



	2016			2015			2014
Numerator:
Income from continuing operations after income taxes attributable to DuPont	$	2,509		$	1,889		$	3,135
Preferred dividends	(10		)	(10		)	(10		)
Income from continuing operations after income taxes available to DuPont common stockholders	$	2,499		$	1,879		$	3,125

Income from discontinued operations after income taxes	$	4		$	64		$	490

Net income available to common stockholders	$	2,503		$	1,943		$	3,615

Denominator:
Weighted-average number of common shares outstanding – Basic	872,560,000			893,992,000			914,752,000
Dilutive effect of the company's equity compensation plans	4,476,000			5,535,000			7,121,000
Weighted-average number of common shares outstanding – Diluted	877,036,000			899,527,000			921,873,000

The weighted-average number of common shares outstanding in 2016 and 2015 decreased as a result of the company's repurchase and retirement of its common stock, partially offset by the issuance of new shares from the company's equity compensation plans(see Notes 16 and 18, respectively).

The following average number of stock options are antidilutive and therefore, are not included in the diluted earnings per share calculation:

The change in the average number of stock options that were antidilutive in 2016 and 2015 was due to changes in the company's average stock price.

Average number of stock options