Stockholders' Equity (Details) - 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, 2016		Aug. 31, 2017		Sep. 30, 2016
Predecessor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 12,517						$ 10,196		$ 10,200
Other Comprehensive Income (Loss), Net of Tax				$ 443		$ 90		1,289		(1,271)
Ending Balance				12,517		9,954		12,517		9,954
Predecessor | Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(6,473)						(6,720)		(7,043)	[1]
Other comprehensive income (loss), before Reclassifications, Net of Tax								(78)		(1,740)	[1]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								325		469	[1]
Other Comprehensive Income (Loss), Net of Tax								247		(1,271)	[1]
Ending Balance				(6,473)		(8,314)	[1]	(6,473)		(8,314)	[1]
Predecessor | Other Post Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(347)						(357)		22
Other comprehensive income (loss), before Reclassifications, Net of Tax								0		(172)
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								10		(58)
Other Comprehensive Income (Loss), Net of Tax								10		(230)
Ending Balance				(347)		(208)		(347)		(208)
Successor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		75,081
Other Comprehensive Income (Loss), Net of Tax		(572)
Ending Balance		74,238		75,081				75,081
Successor | Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[2]	0
Other comprehensive income (loss), before Reclassifications, Net of Tax		0
Other Comprehensive Income (Loss), Net of Tax		0
Ending Balance		0		0	[2]			0	[2]
Successor | Other Post Employment Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[2]	0
Other comprehensive income (loss), before Reclassifications, Net of Tax		0
Other Comprehensive Income (Loss), Net of Tax		0
Ending Balance		0		0	[2]			0	[2]
Cumulative Translation Adjustment | Predecessor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(1,801)	[3]					(2,843)	[3]	(2,333)	[4]
Other comprehensive income (loss), before Reclassifications, Net of Tax								1,042	[3]	187	[4]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								0	[3]	0	[4]
Other Comprehensive Income (Loss), Net of Tax								1,042	[3]	187	[4]
Ending Balance				(1,801)	[3]	(2,146)	[4]	(1,801)	[3]	(2,146)	[4]
Cumulative Translation Adjustment | Successor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[3]	0
Other comprehensive income (loss), before Reclassifications, Net of Tax	[3]	(572)
Other Comprehensive Income (Loss), Net of Tax	[3]	(572)
Ending Balance	[3]	(572)		0				0
Derivative Instruments | Predecessor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(3)						7		(24)
Other comprehensive income (loss), before Reclassifications, Net of Tax								3		21
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								(13)		11
Other Comprehensive Income (Loss), Net of Tax								(10)		32
Ending Balance				(3)		8		(3)		8
Derivative Instruments | Successor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		0
Other comprehensive income (loss), before Reclassifications, Net of Tax		0
Other Comprehensive Income (Loss), Net of Tax		0
Ending Balance		0		0				0
Unrealized gains (losses) on investments | Predecessor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		2						2		(18)
Other comprehensive income (loss), before Reclassifications, Net of Tax								1		(8)
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								(1)		19
Other Comprehensive Income (Loss), Net of Tax								0		11
Ending Balance				2		(7)		2		(7)
Unrealized gains (losses) on investments | Successor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		0
Other comprehensive income (loss), before Reclassifications, Net of Tax		0
Other Comprehensive Income (Loss), Net of Tax		0
Ending Balance		0		0				0
Total | Predecessor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(8,622)						(9,911)		(9,396)
Other comprehensive income (loss), before Reclassifications, Net of Tax								968		(1,712)
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, Net of Tax								321		441
Other Comprehensive Income (Loss), Net of Tax								1,289		(1,271)
Ending Balance				(8,622)		$ (10,667)		(8,622)		$ (10,667)
Total | Successor
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		0
Other comprehensive income (loss), before Reclassifications, Net of Tax		(572)
Other Comprehensive Income (Loss), Net of Tax		(572)
Ending Balance		$ (572)		$ 0				$ 0

[1] The Pension Benefit Plans loss recognized in other comprehensive (loss) income during the nine months ended September 30, 2016 includes the impact of the remeasurement of the principal U.S. pension plan as of June 30, 2016. See Note 15 for additional information.

[2] In connection with the Merger, previously unrecognized prior service benefits and net losses related to DuPont's pension and OPEB plans were eliminated as a result of the reflecting the balance sheet at fair value as of the date of the Merger. See Note 3 and 15 for further information regarding the Merger and pension and OPEB plans, respectively.

[3] The cumulative translation adjustment gain for the period January 1 through August 31, 2017 is primarily driven by the weakening of the U.S dollar (USD) against the European Euro (EUR). The cumulative translation adjustment loss for the period September 1 through September 30, 2017 is primarily driven by the modest strengthening of the USD against the EUR.

[4] The cumulative translation adjustment gain for the nine months ended September 30, 2016 is primarily driven by the modest weakening of the U.S. dollar (USD) against the European Euro (EUR) and the Brazilian real (BRL).