Earnings Per Share of Common Stock

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share of Common Stock

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:

	2012			2011			2010
Numerator:
Income from continuing operations after income taxes attributable to DuPont	$	2,468		$	3,119		$	2,724
Preferred dividends	(10		)	(10		)	(10		)
Income from continuing operations after income taxes available to DuPont common stockholders	$	2,458		$	3,109		$	2,714
Income from discontinued operations after income taxes	$	320		$	355		$	307
Net income available to common stockholders	$	2,778		$	3,464		$	3,021
Denominator:
Weighted-average number of common shares outstanding – Basic	933,275,000			928,417,000			908,860,000
Dilutive effect of the company's employee compensation plans	8,922,000			12,612,000			12,795,000
Weighted average number of common shares outstanding – Diluted	942,197,000			941,029,000			921,655,000

The weighted-average number of common shares outstanding in 2012 and 2011 increased as a result of the issuance of new shares from the company's equity compensation plans, partially offset by the company's repurchase and retirement of its common stock (see Note 17).

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

	2012	2011	2010
Average number of stock options	12,158,000	4,361,000	45,508,000

The change in the average number of stock options that were antidilutive in 2012 and 2011 was primarily due to changes in the company's average stock price.