Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost of Pension Benefits) (Details) (Pension Plans, Defined Benefit [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]
Noncontrolling Interest	$ 0		$ (1)		$ (11)
Accumulated other comprehensive income assumed from purchase of noncontrolling interest	0		25		0
Total (benefit) loss recognized in other comprehensive income, attributable to DuPont	(4,473)		528		3,431
Total recognized in net periodic benefit cost and other comprehensive income	(3,520)		1,360		4,087
Net Periodic Benefit (Credit) Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	271		277		249
Interest cost	1,088		1,165		1,253
Expected return on plan assets	(1,524)		(1,517)		(1,475)
Amortization of loss	957		887		613
Amortization of prior service (benefit) cost	8		13		16
Curtailment loss	1		2		0
Settlement loss	152		5		0
Net periodic benefit (credit) cost	953	[1]	832	[1]	656	[1]
Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit (credit) cost	3		42		41
Changes in Plan Assets and Benefit Obligations Recognized in OCI [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain)	(3,293)		1,433		4,069
Amortization of loss	(957)		(887)		(613)
Prior service (benefit) cost	(62)		(22)		2
Amortization of prior service benefit (cost)	(8)		(13)		(16)
Curtailment (loss) gain	(1)		(2)		0
Settlement loss	(152)		(5)		0
Total (benefit) loss recognized in other comprehensive income	$ (4,473)		$ 504		$ 3,442

[1] The above amounts include net periodic benefit cost relating to discontinued operations for 2013, 2012 and 2011 of $3, $42 and $41, respectively.