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Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended	8 Months Ended	9 Months Ended
	Sep. 30, 2017	Aug. 31, 2017	Sep. 30, 2018	Aug. 31, 2017	Sep. 30, 2018
Predecessor [Member]
Net (loss) income		$ (229)		$ 1,761
Cumulative Translation Adjustments		389		1,042
Derivatives Instruments		1		(10)
Total other comprehensive (loss) income		443		1,289
Comprehensive (loss) income		214		3,050
Comprehensive (Loss) Income Attributable to Noncontrolling Interest - Net of Tax		5		20
Comprehensive (Loss) Income Attributable to DuPont		209		3,030
Successor [Member]
Net (loss) income	$ (295)		$ (4,960)		$ (4,667)
Cumulative Translation Adjustments	(572)		(76)		(1,042)
Derivatives Instruments	0		(3)		(8)
Total other comprehensive (loss) income	(572)		(75)		(1,039)
Comprehensive (loss) income	(867)		(5,035)		(5,706)
Comprehensive (Loss) Income Attributable to Noncontrolling Interest - Net of Tax	(2)		0		8
Comprehensive (Loss) Income Attributable to DuPont	(865)		(5,035)		(5,714)
Pension Plan \| Predecessor [Member]
Adjustments to benefit plans		50		247
Pension Plan \| Successor [Member]
Adjustments to benefit plans	0		4		11
Other Benefit Plans \| Predecessor [Member]
Adjustments to benefit plans		$ 3		$ 10
Other Benefit Plans \| Successor [Member]
Adjustments to benefit plans	$ 0		$ 0		$ 0