Long-Term Employee Benefits (Schedules of Net Periodic Benefit Costs) (Details) (Other Long-Term Employee Benefit Plans [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Accumulated other comprehensive income assumed from purchase of noncontrolling interest	$ 0		$ 1		$ 0
Total (benefit) loss recognized in other comprehensive income, attributable to DuPont	(452)		(738)		509
Total recognized in net periodic benefit cost and other comprehensive income	(565)		(585)		693
Net Periodic Benefit (Credit) Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	29		37		33
Interest cost	130		174		212
Amortization of loss	76		94		60
Amortization of prior service (benefit) cost	(195)		(155)		(121)
Curtailment loss (gain)	(154)		3		0
Settlement loss	1		0		0
Net periodic benefit (credit) cost	(113)	[1]	153	[1]	184	[1]
Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit (credit) cost	0		2		2
Changes in Plan Assets and Benefit Obligations Recognized in OCI [Member]
Defined Benefit Plan Disclosure [Line Items]
Net (gain) / loss	(513)		60		437
Amortization of loss	(76)		(94)		(60)
Prior service (benefit) cost	(211)		(857)		11
Amortization of prior service benefit (cost)	195		155		121
Curtailment (loss) gain	154		(3)		0
Settlement loss	(1)		0		0
Total (benefit) loss recognized in other comprehensive income	$ (452)		$ (739)		$ 509

[1] The above amounts include net periodic benefit cost relating to discontinued operations for 2013, 2012 and 2011 of $0, $2 and $2, respectively.