Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
Dec. 31, 2017	Aug. 31, 2017	Dec. 31, 2018	Dec. 31, 2016
Predecessor [Member]
Net (loss) income		$ 1,761		$ 2,525
Unrealized gains on Investments		0		20
Cumulative Translation Adjustments		1,042		(510)
Derivatives Instruments		(10)		31
Other Comprehensive (Loss) Income, Net of Tax		1,289		(515)
Comprehensive (Loss) Income		3,050		2,010
Comprehensive Income (Loss) Attributable to Noncontrolling Interest		20		12
Comprehensive (Loss) Income Attributable to DuPont		3,030		1,998
Successor [Member]
Net (loss) income	$ 1,010		$ (5,018)
Unrealized gains on Investments	0		0
Cumulative Translation Adjustments	(454)		(1,512)
Derivatives Instruments	(2)		(24)
Other Comprehensive (Loss) Income, Net of Tax	(381)		(2,122)
Comprehensive (Loss) Income	629		(7,140)
Comprehensive Income (Loss) Attributable to Noncontrolling Interest	0		11
Comprehensive (Loss) Income Attributable to DuPont	629		(7,151)
Pension Plan \| Predecessor [Member]
Adjustments to benefit plans		247		323
Pension Plan \| Successor [Member]
Adjustments to benefit plans	128		(718)
Other Benefit Plans \| Predecessor [Member]
Adjustments to benefit plans		$ 10		$ (379)
Other Benefit Plans \| Successor [Member]
Adjustments to benefit plans	$ (53)		$ 132

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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