Earnings Per Share of Common Stock

6 Months Ended

Jun. 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 earnings per share calculations for the periods indicated:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2012			2011			2012			2011
Numerator:
Net income attributable to DuPont	$	1,179		$	1,218		$	2,667		$	2,649
Preferred dividends	(2		)	(2		)	(5		)	(5		)
Net income available to common stockholders	$	1,177		$	1,216		$	2,662		$	2,644
Denominator:
Weighted-average number of common shares outstanding - Basic	934,057,000			930,798,000			933,982,000			927,860,000
Dilutive effect of the company’s employee compensation plans	8,775,000			13,189,000			9,551,000			14,601,000
Weighted-average number of common shares outstanding - Diluted	942,832,000			943,987,000			943,533,000			942,461,000

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

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2012	2011	2012	2011
Average number of stock options	12,750,000	—	11,737,000	—

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