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Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
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Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | $ 3,439 | $ 4,184
Definite-lived Intangible Assets, Accumulated Amortization |  | (1,414) | (1,814)
Definite-lived Intangible Assets, Net |  | 2,025 | 2,370
Indefinite-lived Intangible Assets |  | 2,189 | 2,199
Total Intangible Assets, Gross |  | 5,628 | 6,383
Total Intangible Assets, Accumulated Amortization |  | (1,414) | (1,814)
Intangible Assets Net Excluding Goodwill |  | 4,214 | 4,569
In Process Research and Development [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 77 | 29
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 |  | 1,050 | 1,064
Trademarks/Tradenames [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Indefinite-lived Intangible Assets |  | 756 | 800
Customer Lists [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 1,639 | 1,699
Definite-lived Intangible Assets, Accumulated Amortization |  | (514) | (465)
Definite-lived Intangible Assets, Net |  | 1,125 | 1,234
Patents [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 457 | 474
Definite-lived Intangible Assets, Accumulated Amortization |  | (211) | (184)
Definite-lived Intangible Assets, Net |  | 246 | 290
Purchased and Licensed Technology [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 1,131 | 1,783
Definite-lived Intangible Assets, Accumulated Amortization |  | (604) | (1,069)
Definite-lived Intangible Assets, Net |  | 527 | 714
Trademarks [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross |  | 26 | 26
Definite-lived Intangible Assets, Accumulated Amortization |  | (13) | (12)
Definite-lived Intangible Assets, Net |  | 13 | 14
Other [Member] |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived Intangible Assets, Gross | [1] | 186 | 202
Definite-lived Intangible Assets, Accumulated Amortization | [1] | (72) | (84)
Definite-lived Intangible Assets, Net | [1] | $ 114 | $ 118
[1] | Primarily consists of sales and grower networks, marketing and manufacturing alliances and noncompetition agreements.

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