Long-Term Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2011

Summarized Information on Pension and Other Long-Term Benefits Plans

	Pension Benefits								Other Benefits
Obligations and Funded Status at December 31,	2011				2010				2011			2010
Change in benefit obligation
Benefit obligation at beginning of year	$	23,924			$	22,770			$	3,989		$	4,132
Service cost	249				207				33			29
Interest cost	1,253				1,262				212			238
Plan participants' contributions	21				18				112			114
Actuarial loss	3,062				1,218				441			96
Benefits paid	(1,610		)		(1,584		)		(424		)	(435		)
Amendments	2				—				11			(189		)	1
Net effects of acquisitions/divestitures	182				33				5			4
Benefit obligation at end of year	$	27,083			$	23,924			$	4,379		$	3,989
Change in plan assets
Fair value of plan assets at beginning of year	$	18,403			$	17,143			$	—		$	—
Actual gain on plan assets	471				2,015				—			—
Employer contributions	341				782				312			321
Plan participants' contributions	21				18				112			114
Benefits paid	(1,610		)		(1,584		)		(424		)	(435		)
Net effects of acquisitions/divestitures	168				29				—			—
Fair value of plan assets at end of year	$	17,794			$	18,403			$	—		$	—
Funded status
U.S. plans with plan assets	$	(6,894	)		$	(3,408	)		$	—		$	—
Non-U.S. plans with plan assets	(901		)		(652		)		—			—
All other plans	(1,494		)	2	(1,461		)	2	(4,379		)	(3,989		)
Total	$	(9,289	)		$	(5,521	)		$	(4,379	)	$	(3,989	)
Amounts recognized in the Consolidated Balance      Sheets consist of:
Other assets	$	4			$	4			$	—		$	—
Other accrued liabilities (Note 12)	(107		)		(124		)		(316		)	(319		)
Other liabilities (Note 14)	(9,186		)		(5,401		)		(4,063		)	(3,670		)
Net amount recognized	$	(9,289	)		$	(5,521	)		$	(4,379	)	$	(3,989	)

^1.  Change is primarily due to an amendment in 2010 to the company's U.S. parent company retiree medical plan to take advantage of a 50 percent discount from brand name drug manufacturers in the "coverage gap" portion of the Medicare Part D plan. The plan amendment has no effect on current or future retirees' coverage.

^2.  Includes pension plans maintained around the world where funding is not customary.

Schedule of Amounts Recognized in Accumulated Other Comprehensive Loss

	Pension Benefits						Other Benefits
December 31,	2011			2010			2011			2010
Net loss	$	(12,477	)	$	(9,032	)	$	(1,266	)	$	(889	)
Prior service (cost) benefit	(99		)	(114		)	862			994
	$	(12,576	)	$	(9,146	)	$	(404	)	$	105

Schedule of Information for Pension Plans with Projected Benefit Obligation in Excess of Plan Assets

Information for pension plans with projected benefit obligation in excess of plan assets	2011		2010
Projected benefit obligation	$	27,002	$	23,707
Accumulated benefit obligation	25,049		21,962
Fair value of plan assets	17,710		18,183

Schedule of Information for Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets

Information for pension plans with accumulated benefit obligations in excess of plan assets	2011		2010
Projected benefit obligation	$	25,810	$	23,481
Accumulated benefit obligation	23,974		21,807
Fair value of plan assets	16,576		18,017

Schedule of Assumptions Used to Determine Net Periodic Benefit Cost

	Pension Benefits				Other Benefits
Weighted-average assumptions used to determine benefit obligations at December 31,	2011		2010		2011		2010
Discount rate	4.49	%	5.32	%	4.50	%	5.50	%
Rate of compensation increase	4.18	%	4.24	%	4.40	%	4.50	%

Schedule of Assumptions Used to Determine Benefit Obligations

	Pension Benefits						Other Benefits
Weighted-average assumptions used to determine net      periodic benefit cost for the years ended December 31,	2011		2010		2009		2011		2010		2009
Discount rate	5.32	%	5.80	%	6.14	%	5.50	%	6.00	%	6.25	%
Expected return on plan assets	8.73	%	8.64	%	8.75	%	—	%	—	%	—	%
Rate of compensation increase	4.24	%	4.24	%	4.30	%	4.50	%	4.50	%	4.50	%

Schedule of Assumed Health Care Cost Trend Rates

Assumed health care cost trend rates at December 31,	2011		2010
Health care cost trend rate assumed for next year	8	%	8	%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	5	%	5	%
Year that the rate reaches the ultimate trend rate	2015		2014

Schedule of a One-Percentage Point Change in Assumed Health Care Cost Trend Rates

	1-Percentage Point Increase		1-Percentage Point Decrease
Increase (decrease) on total of service and interest cost	$	6	$	(5	)
Increase (decrease) on post-retirement benefit obligation	84		(80		)

Schedule of Actual and Target Asset Allocations

Target allocation for plan assets at December 31,	2011		2010
U.S. equity securities	27	%	30	%
Non-U.S. equity securities	20		22
Fixed income securities	29		29
Hedge funds	2		—
Private market securities	14		12
Real estate	8		7
Total	100	%	100	%

Schedule of Fair Value of Pension Assets

	Fair Value Measurements at December 31, 2011
Asset Category	Total			Level 1			Level 2			Level 3
Cash and cash equivalents	$	2,085		$	1,962		$	123		$	—
U.S. equity securities1	3,624			3,576			20			28
Non-U.S. equity securities	3,227			3,166			61			—
Debt – government issued	1,596			391			1,205			—
Debt – corporate issued	1,844			114			1,700			30
Debt – asset-backed	963			36			923			4
Hedge funds	396			—			4			392
Private market securities	2,959			—			—			2,959
Real estate	1,196			109			—			1,087
Derivatives – asset position	127			4			123			—
Derivatives – liability position	(90		)	(2		)	(88		)	—
	$	17,927		$	9,356		$	4,071		$	4,500
Pension trust receivables2	463
Pension trust payables3	(596		)
Total	$	17,794

	Fair Value Measurements at December 31, 2010
Asset Category	Total			Level 1			Level 2			Level 3
Cash and cash equivalents	$	2,603		$	2,535		$	68		$	—
U.S. equity securities1	4,016			3,964			32			20
Non-U.S. equity securities	3,663			3,602			61			—
Debt – government issued	1,514			195			1,319			—
Debt – corporate issued	1,813			151			1,628			34
Debt – asset-backed	970			43			923			4
Private market securities	2,931			—			—			2,931
Real estate	1,049			118			—			931
Derivatives – asset position	95			6			89			—
Derivatives – liability position	(75		)	(1		)	(74		)	—
Other	1			1			—			—
	$	18,580		$	10,614		$	4,046		$	3,920
Pension trust receivables2	471
Pension trust payables3	(648		)
Total	$	18,403

^1.  The company's pension plans directly held $457 (3 percent of total plan assets) and $498 (3 percent of total plan assets) of DuPont common stock at December 31, 2011 and 2010, respectively.

^2.  Primarily receivables for investment securities sold.

^3.  Primarily payables for investment securities purchased.

Schedule of Fair Value of Plan Assets Held in Level 3

	Level 3 Assets
	Total			U.S. Equity Securities			Debt- Corporate Issued			Debt- Asset- Backed			Hedge Funds			Private Market Securities			Real Estate
Beginning balance at December 31, 2009	$	2,928		$	4		$	51		$	8		$	—		$	1,980		$	885
Realized gain (loss)	(9		)	—			(53		)	5			—			39			—
Change in unrealized gain (loss)	206			3			48			(5		)	—			229			(69		)
Purchases, sales and settlements	884			13			(11		)	(4		)	—			683			203
Transfers (out) in of Level 3	(89		)	—			(1		)	—			—			—			(88		)
Ending balance at December 31, 2010	$	3,920		$	20		$	34		$	4		$	—		$	2,931		$	931
Realized gain (loss)	11			—			(10		)	—			—			21			—
Change in unrealized gain (loss)	201			(3		)	9			—			(9		)	124			80
Purchases, sales and settlements	375			10			5			—			401			(117		)	76
Transfers (out) in of Level 3	(7		)	1			(8		)	—			—			—			—
Ending balance at December 31, 2011	$	4,500		$	28		$	30		$	4		$	392		$	2,959		$	1,087

Schedule of Estimated Future Benefit Payments

	Pension Benefits		Other Benefits
2012	$	1,599	$	315
2013	1,575		320
2014	1,586		321
2015	1,609		322
2016	1,617		325
Years 2017-2021	8,443		1,640

Pension Plans, Defined Benefit [Member]

Schedules of Net Periodic Benefit Cost

	Pension Benefits
Components of net periodic benefit cost (credit) and amounts recognized in other      comprehensive income	2011			2010			2009
Net periodic benefit cost
Service cost	$	249		$	207		$	192
Interest cost	1,253			1,262			1,270
Expected return on plan assets	(1,475		)	(1,435		)	(1,603		)
Amortization of loss	613			507			278
Amortization of prior service cost	16			16			18
Net periodic benefit cost	$	656		$	557		$	155
Changes in plan assets and benefit obligations recognized in other      comprehensive income
Net loss	$	4,058		$	634		$	781
Amortization of loss	(613		)	(507		)	(278		)
Prior service cost	2			—			—
Amortization of prior service cost	(16		)	(16		)	(18		)
Total recognized in other comprehensive income	$	3,431		$	111		$	485
Total recognized in net periodic benefit cost and other comprehensive income	$	4,087		$	668		$	640

Other Long-Term Employee Benefit Plans Defined Benefit [Member]

Schedules of Net Periodic Benefit Cost

	Other Benefits
Components of net periodic benefit cost and amounts recognized in other      comprehensive income	2011			2010			2009
Net periodic benefit cost
Service cost	$	33		$	29		$	31
Interest cost	212			238			245
Amortization of loss	60			58			50
Amortization of prior service benefit	(121		)	(106		)	(106		)
Net periodic benefit cost	$	184		$	219		$	220
Changes in plan assets and benefit obligations recognized in other      comprehensive income
Net loss	$	437		$	94		$	110
Amortization of loss	(60		)	(58		)	(50		)
Prior service cost	11			(189		)	(4		)
Amortization of prior service benefit	121			106			106
Total recognized in other comprehensive income	$	509		$	(47	)	$	162
Total recognized in net periodic benefit cost and other comprehensive income	$	693		$	172		$	382