Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2011

Stockholders' Equity Note [Abstract]

Reconciliation of Common Stock Share Activity

Shares of common stock	Issued		Held In Treasury
Balance January 1, 2009	989,415,000		(87,041,000	)
Issued	1,440,000		—
Balance December 31, 2009	990,855,000		(87,041,000	)
Issued	18,891,000		—
Repurchased	—		(5,395,000	)
Retired	(5,395,000	)	5,395,000
Balance December 31, 2010	1,004,351,000		(87,041,000	)
Issued	22,650,000		—
Repurchased	—		(13,837,000	)
Retired	(13,837,000	)	13,837,000
Balance December 31, 2011	1,013,164,000		(87,041,000	)

Schedule of Components of Other Comprehensive Income / (Loss)

	Pre-tax			Tax			After-tax
2011
Cumulative translation adjustment	$	(457	)	$	—		$	(457	)
Net revaluation and clearance of cash flow hedges to earnings	113			(41		)	72
Pension benefits (Note 17)	(3,431		)	1,187			(2,244		)
Other benefits (Note 17)	(509		)	177			(332		)
Net unrealized gains on securities	2			(1		)	1
Other comprehensive loss attributable to noncontrolling interest	(18		)	—			(18		)
Other comprehensive loss attributable to DuPont	$	(4,300	)	$	1,322		$	(2,978	)
2010
Cumulative translation adjustment	$	(6	)	$	—		$	(6	)
Net revaluation and clearance of cash flow hedges to earnings	54			(20		)	34
Pension benefits (Note 17)	(111		)	46			(65		)
Other benefits (Note 17)	47			(30		)	17
Net unrealized gains on securities	2			(1		)	1
Other comprehensive income attributable to noncontrolling interest	2			—			2
Other comprehensive loss attributable to DuPont	$	(12	)	$	(5	)	$	(17	)
2009
Cumulative translation adjustment	$	89		$	—		$	89
Net revaluation and clearance of cash flow hedges to earnings	145			(52		)	93
Pension benefits (Note 17)	(485		)	152			(333		)
Other benefits (Note 17)	(162		)	56			(106		)
Net unrealized gains on securities	6			(2		)	4
Other comprehensive loss attributable to noncontrolling interest	(2		)	—			(2		)
Other comprehensive loss attributable to DuPont	$	(409	)	$	154		$	(255	)

Schedule of Accumulated Other Comprehensive Loss

December 31,	2011			2010			2009
Cumulative translation adjustment	$	(244	)	$	213		$	219
Net revaluation and clearance of cash flow hedges to earnings	41			(31		)	(65		)
Net unrealized gains on securities	3			2			1
Pension benefits
Net losses	(8,204		)	(5,950		)	(5,873		)
Net prior service cost	(72		)	(82		)	(94		)
Other benefits
Net losses	(824		)	(577		)	(551		)
Net prior service benefit	550			635			592
	$	(8,750	)	$	(5,790	)	$	(5,771	)