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, 2016	Dec. 31, 2015
Predecessor [Member]
Net income		$ 1,761	$ 2,525	$ 1,959
Unrealized gains on Investments		0	20	(19)
Cumulative Translation Adjustments		1,042	(510)	(1,605)
Derivatives Instruments		(10)	31	(18)
Other Comprehensive Income (Loss), Net of Tax		1,289	(515)	(1,308)
Comprehensive Income		3,050	2,010	651
Comprehensive Income Attributable to Noncontrolling Interest		20	12	6
Comprehensive Income Attributable to DuPont		3,030	1,998	645
Successor [Member]
Net income	$ 1,010
Unrealized gains on Investments	0
Cumulative Translation Adjustments	(454)
Derivatives Instruments	(2)
Other Comprehensive Income (Loss), Net of Tax	(381)
Comprehensive Income	629
Comprehensive Income Attributable to Noncontrolling Interest	0
Comprehensive Income Attributable to DuPont	629
Pension Plan | Predecessor [Member]
Adjustments to benefit plans		247	323	574
Pension Plan | Successor [Member]
Adjustments to benefit plans	128
Other Benefit Plans | Predecessor [Member]
Adjustments to benefit plans		$ 10	$ (379)	$ (240)
Other Benefit Plans | Successor [Member]
Adjustments to benefit plans	$ (53)