Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Assets
Cash and cash equivalents	$ 3,586		$ 4,263
Marketable securities	433		2,538
Accounts and notes receivable, net	6,022		5,635
Inventories	7,195		5,967
Prepaid expenses	151		122
Deferred income taxes	671		534
Total current assets	18,058		19,059
Property, plant and equipment	32,761		29,967
Less: Accumulated depreciation	19,349		18,628
Net property, plant and equipment	13,412	[1]	11,339	[1]
Goodwill	5,413		2,617
Other intangible assets	5,413		2,704
Investments in affiliates	1,117		1,041
Deferred income taxes	4,067		2,772
Other assets	1,012		878
Total	48,492		40,410
Liabilities and Equity
Accounts payable	4,816		4,349
Short-term borrowings and capital lease obligations	817		133
Income taxes	255		225
Other accrued liabilities	5,297		4,682
Total current liabilities	11,185		9,389
Long-term borrowings and capital lease obligations	11,736		10,137
Other liabilities	15,508		11,026
Deferred income taxes	1,001		115
Total liabilities	39,430		30,667
Commitments and contingent liabilities
Stockholders' equity
Common stock, $0.30 par value; 1,800,000,000 shares authorized; Issued at December 31, 2011 - 1,013,164,000; 2010 - 1,004,351,000	304		301
Additional paid-in capital	10,107		9,227
Reinvested earnings	13,422		12,030
Accumulated other comprehensive loss	(8,750)		(5,790)
Common stock held in treasury, at cost (Shares: December 31, 2011 and 2010 - 87,041,000)	(6,727)		(6,727)
Total DuPont stockholders' equity	8,593		9,278
Noncontrolling interests	469		465
Total equity	9,062		9,743
Total	48,492		40,410
$4.50 Series-1,673,000 shares (callable at $120) [Member]
Stockholders' equity
Preferred stock, without par value-cumulative; 23,000,000 shares authorized; issued at December 31, 2011 and 2010; $4.50 Series- 1,673,000 shares (callable at $120) $3.50 Series- 700,000 shares (callable at$102)	167		167
$3.50 Series-700,000 shares (callable at $102) [Member]
Stockholders' equity
Preferred stock, without par value-cumulative; 23,000,000 shares authorized; issued at December 31, 2011 and 2010; $4.50 Series- 1,673,000 shares (callable at $120) $3.50 Series- 700,000 shares (callable at$102)	$ 70		$ 70

[1] Includes property, plant and equipment less accumulated depreciation.