Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		Dec. 31, 2017	Dec. 31, 2016
Successor [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 16,334
Finite-Lived Intangible Assets, Accumulated Amortization		(389)
Finite-Lived Intangible Assets, Net		15,945
Indefinite-Lived Intangible Assets (Excluding Goodwill)		11,781
Intangible Assets, Gross (Excluding Goodwill)		28,115
Total other intangible assets		27,726
Successor [Member] | In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)		660
Successor [Member] | Germplasm [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]	6,265
Successor [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)		4,856
Successor [Member] | Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		9,502
Finite-Lived Intangible Assets, Accumulated Amortization		(186)
Finite-Lived Intangible Assets, Net		9,316
Successor [Member] | Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		4,364
Finite-Lived Intangible Assets, Accumulated Amortization		(144)
Finite-Lived Intangible Assets, Net		4,220
Successor [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,117
Finite-Lived Intangible Assets, Accumulated Amortization		(26)
Finite-Lived Intangible Assets, Net		1,091
Successor [Member] | Favorable Supply Contract [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[2]	495
Finite-Lived Intangible Assets, Accumulated Amortization	[2]	(17)
Finite-Lived Intangible Assets, Net	[2]	478
Successor [Member] | Microbial Cell Factories [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[3]	397
Finite-Lived Intangible Assets, Accumulated Amortization	[3]	(6)
Finite-Lived Intangible Assets, Net	[3]	391
Successor [Member] | Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[4]	459
Finite-Lived Intangible Assets, Accumulated Amortization	[4]	(10)
Finite-Lived Intangible Assets, Net	[4]	$ 449
Predecessor [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			$ 3,208
Finite-Lived Intangible Assets, Accumulated Amortization			(1,521)
Finite-Lived Intangible Assets, Net			1,687
Indefinite-Lived Intangible Assets (Excluding Goodwill)			1,977
Intangible Assets, Gross (Excluding Goodwill)			5,185
Total other intangible assets			3,664
Predecessor [Member] | In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)			73
Predecessor [Member] | Microbial Cell Factories [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[3]		306
Predecessor [Member] | Germplasm [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]		1,053
Predecessor [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)			545
Predecessor [Member] | Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			1,574
Finite-Lived Intangible Assets, Accumulated Amortization			(586)
Finite-Lived Intangible Assets, Net			988
Predecessor [Member] | Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			1,410
Finite-Lived Intangible Assets, Accumulated Amortization			(838)
Finite-Lived Intangible Assets, Net			572
Predecessor [Member] | Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			53
Finite-Lived Intangible Assets, Accumulated Amortization			(15)
Finite-Lived Intangible Assets, Net			38
Predecessor [Member] | Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[4]		171
Finite-Lived Intangible Assets, Accumulated Amortization	[4]		(82)
Finite-Lived Intangible Assets, Net	[4]		$ 89

[1] Pioneer germplasm is the pool of genetic source material and body of knowledge gained from the development and delivery stage of plant breeding. The company recognized germplasm as an intangible asset upon the acquisition of Pioneer. This intangible asset is expected to contribute to cash flows beyond the foreseeable future and there are no legal, regulatory, contractual, or other factors which limit its useful life.

[2] Upon closing and pursuant to the terms of the FMC Transaction Agreement, DuPont entered into favorable supply contracts with FMC. DuPont recorded these contracts as intangible assets recognized at the fair value of off-market contracts. Refer to Notes 3 and 4 for additional information.

[3] Microbial cell factories, derived from natural microbes, are used to sustainably produce enzymes, peptides and chemicals using natural metabolic processes. The company recognized the microbial cell factories as intangible assets upon the acquisition of Danisco. As a result of the valuation as part of the Merger, it was determined that this intangible asset now has a definite life and therefore it has been moved from indefinite-lived to definite-lived as of September 1, 2017.

[4] Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements.