Consolidated Income Statements (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net sales	$ 11,006	$ 10,264	$ 22,236	$ 20,298
Other income, net	277	229	303	254
Total	11,283	10,493	22,539	20,552
Cost of goods sold and other operating charges	7,815	7,191	15,342	14,022
Selling, general and administrative expenses	1,186	1,136	2,355	2,163
Research and development expense	528	462	1,033	861
Interest expense	117	115	231	215
Total	9,646	8,904	18,961	17,261
Income before income taxes	1,637	1,589	3,578	3,291
Provision for income taxes	449	360	890	618
Net income	1,188	1,229	2,688	2,673
Less: Net income attributable to noncontrolling interests	9	11	21	24
Net income attributable to DuPont	$ 1,179	$ 1,218	$ 2,667	$ 2,649
Basic earnings per share of common stock	$ 1.26	$ 1.31	$ 2.85	$ 2.85
Diluted earnings per share of common stock	$ 1.25	$ 1.29	$ 2.82	$ 2.80
Dividends per share of common stock	$ 0.43	$ 0.41	$ 0.84	$ 0.82