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Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
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Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | $ 3,238 | $ 3,208
Definite-lived Intangible Assets, Accumulated Amortization |  | (1,625) | (1,521)
Definite-lived Intangible Assets, Net |  | 1,613 | 1,687
Indefinite-lived Intangible Assets |  | 2,010 | 1,977
Intangible Assets, Gross (Excluding Goodwill) |  | 5,248 | 5,185
Intangible Assets Net Excluding Goodwill |  | 3,623 | 3,664
In Process Research and Development [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 74 | 73
Microbial Cell Factories [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 306 | 306
Pioneer Germplasm [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 1,057 | 1,053
Trademarks / Trade names [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 573 | 545
Customer Lists [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 1,633 | 1,574
Definite-lived Intangible Assets, Accumulated Amortization |  | (643) | (586)
Definite-lived Intangible Assets, Net |  | 990 | 988
Patents [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 458 | 446
Definite-lived Intangible Assets, Accumulated Amortization |  | (287) | (259)
Definite-lived Intangible Assets, Net |  | 171 | 187
Purchased and Licensed Technology [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 920 | 964
Definite-lived Intangible Assets, Accumulated Amortization |  | (589) | (579)
Definite-lived Intangible Assets, Net |  | 331 | 385
Trademarks / Trade names [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 54 | 53
Definite-lived Intangible Assets, Accumulated Amortization |  | (17) | (15)
Definite-lived Intangible Assets, Net |  | 37 | 38
Other [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross | [1] | 173 | 171
Definite-lived Intangible Assets, Accumulated Amortization | [1] | (89) | (82)
Definite-lived Intangible Assets, Net | [1] | $ 84 | $ 89
[1] | Primarily consists of sales networks, marketing and manufacturing alliances and non-competition agreements.

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