Earnings Per Share of Common Stock

9 Months Ended

Sep. 30, 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 (loss) earnings per share calculations for the periods indicated:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
Numerator:
(Loss) income from continuing operations after income taxes attributable to DuPont	$	(43	)	$	368		$	2,450		$	2,830
Preferred dividends	(3		)	(3		)	(8		)	(8		)
(Loss) income from continuing operations after income taxes available to DuPont common stockholders	$	(46	)	$	365		$	2,442		$	2,822
Income from discontinued operations after income taxes	$	53		$	84		$	227		$	271
Net income available to common stockholders	$	7		$	449		$	2,669		$	3,093
Denominator:
Weighted-average number of common shares outstanding - Basic	931,737,000			932,356,000			933,227,000			929,369,000
Dilutive effect of the company’s employee compensation plans1	8,789,000			11,129,000			9,297,000			13,443,000
Weighted-average number of common shares outstanding - Diluted	940,526,000			943,485,000			942,524,000			942,812,000

¹ Dilutive effect of the company's employee compensation plans are excluded from calculation of dilutive loss per share of common stock from continuing operations for the three months ended September 30, 2012.

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

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2012	2011	2012	2011
Average number of stock options	12,631,000	8,678,000	12,035,000	2,904,000

The change in the average number of stock options that were antidilutive in the three and nine months ended September 30, 2012 compared to the same periods last year was primarily due to changes in the company’s average stock price.