Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Net income	$ 1,074		$ 1,034		$ 2,519		$ 4,389
Cumulative translation adjustment	(59)		(14)		(131)		(223)
Additions and revaluations of derivatives designated as cash flow hedges	(12)	[1]	(8)	[1]	26	[1]	(24)	[1]
Clearance of hedge results to earnings	13		(18)		31		(28)
Net revaluation and clearance of cash flow hedges to earnings	1		(26)		57		(52)
Net unrealized gain on securities	0		3		0		1
Other comprehensive (loss) income, before tax	(44)		185		52		244
Income tax expense related to items of other comprehensive income	(7)		(67)		(64)		(142)
Other comprehensive (loss) income, net of tax	(51)		118		(12)		102
Comprehensive income	1,023		1,152		2,507		4,491
Less: comprehensive income attributable to noncontrolling interests	4		4		10		11
Comprehensive income attributable to DuPont	1,019		1,148		2,497		4,480
Pension Plans [Member]
Net gain (loss)	(103)		0		(102)		56
Amortization of prior service cost (benefit)	0		3		1		6
Amortization of loss	150		239		299		480
Curtailment / settlement loss (gain)	6		0		6		153
Benefit plans, net	53		242		204		695
Other Long-Term Employee Benefit Plans [Member]
Net gain (loss)	0		28		0		45
Amortization of prior service cost (benefit)	(53)		(46)		(106)		(94)
Amortization of loss	14		(2)		28		25
Curtailment / settlement loss (gain)	0		0		0		(153)
Benefit plans, net	$ (39)		$ (20)		$ (78)		$ (177)

[1] These amounts represent changes in accumulated other comprehensive income excluding changes due to reclassifying amounts to the interim Consolidated Income Statements.