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Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | $ 16,239 | $ 16,334
Finite-Lived Intangible Assets, Accumulated Amortization |  | (1,027) | (389)
Finite-Lived Intangible Assets, Net |  | 15,212 | 15,945
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | 11,654 | 11,781
Intangible Assets, Gross (Excluding Goodwill) |  | 27,893 | 28,115
Total other intangible assets |  | 26,866 | 27,726
In Process Research and Development [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | 630 | 660
Germplasm [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) | [1] | 6,265 | 6,265
Trademarks and Trade Names [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  | 4,759 | 4,856
Customer-Related Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 9,412 | 9,502
Finite-Lived Intangible Assets, Accumulated Amortization |  | (469) | (186)
Finite-Lived Intangible Assets, Net |  | 8,943 | 9,316
Developed Technology Rights [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 4,497 | 4,364
Finite-Lived Intangible Assets, Accumulated Amortization |  | (390) | (144)
Finite-Lived Intangible Assets, Net |  | 4,107 | 4,220
Trademarks and Trade Names [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 1,086 | 1,117
Finite-Lived Intangible Assets, Accumulated Amortization |  | (70) | (26)
Finite-Lived Intangible Assets, Net |  | 1,016 | 1,091
Favorable Supply Contract [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 475 | 495
Finite-Lived Intangible Assets, Accumulated Amortization |  | (64) | (17)
Finite-Lived Intangible Assets, Net |  | 411 | 478
Microbial Cell Factories [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 391 | 397
Finite-Lived Intangible Assets, Accumulated Amortization |  | (14) | (6)
Finite-Lived Intangible Assets, Net |  | 377 | 391
Other Intangible Assets [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [2] | 378 | 459
Finite-Lived Intangible Assets, Accumulated Amortization | [2] | (20) | (10)
Finite-Lived Intangible Assets, Net | [2] | $ 358 | $ 449
[1] | 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] | Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements.

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