Earnings Per Share of Common Stock (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share of Common Stock Reconciliation Table

	Three Months Ended
	March 31,
	2012			2011
Numerator:
Net income attributable to DuPont	$	1,488		$	1,431
Preferred dividends	(3		)	(3		)
Net income available to common stockholders	$	1,485		$	1,428
Denominator:
Weighted-average number of common shares outstanding - Basic	933,910,000			924,897,000
Dilutive effect of the company’s employee compensation plans	10,328,000			16,012,000
Weighted-average number of common shares outstanding - Diluted	944,238,000			940,909,000

Average Number of Antidilutive Stock Options

	Three Months Ended
	March 31,
	2012	2011
Average number of stock options	10,724,000	—