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Goodwill and Other Intangible Assets (Schedule of Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | $ 4,226 us-gaap_FiniteLivedIntangibleAssetsGross |  | $ 4,621 us-gaap_FiniteLivedIntangibleAssetsGross |
Definite-lived Intangible Assets, Accumulated Amortization | (1,845)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |  | (1,805)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
Definite-lived Intangible Assets, Net | 2,381 us-gaap_FiniteLivedIntangibleAssetsNet |  | 2,816 us-gaap_FiniteLivedIntangibleAssetsNet |
Indefinite-lived Intangible Assets, Gross | 2,199 dd_IndefiniteLivedIntangibleAssetsGross |  | 2,280 dd_IndefiniteLivedIntangibleAssetsGross |
Indefinite-lived Intangible Assets, Net | 2,199 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill |  | 2,280 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill |
Total Intangible Assets, Gross | 6,425 dd_TotalIntangibleAssetsGross |  | 6,901 dd_TotalIntangibleAssetsGross |
Total Intangible Assets, Accumulated Amortization | (1,845)dd_TotalIntangibleAssetsAccumulatedAmortization |  | (1,805)dd_TotalIntangibleAssetsAccumulatedAmortization |
Intangible Assets Net Excluding Goodwill | 4,580 us-gaap_IntangibleAssetsNetExcludingGoodwill |  | 5,096 us-gaap_IntangibleAssetsNetExcludingGoodwill |
In-process research and development [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-lived Intangible Assets, Gross | 29 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |  | 43 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
Indefinite-lived Intangible Assets, Net | 29 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |  | 43 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
Microbial Cell Factories [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-lived Intangible Assets, Gross | 306 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_MicrobialCellFactoriesMember | [1] | 306 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_MicrobialCellFactoriesMember | [1]
Indefinite-lived Intangible Assets, Net | 306 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_MicrobialCellFactoriesMember | [1] | 306 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_MicrobialCellFactoriesMember | [1]
Pioneer Germplasm [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-lived Intangible Assets, Gross | 1,064 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_PioneerGermplasmMember | [2] | 1,050 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_PioneerGermplasmMember | [2]
Indefinite-lived Intangible Assets, Net | 1,064 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_PioneerGermplasmMember | [2] | 1,050 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = dd_PioneerGermplasmMember | [2]
Trademarks/Tradenames [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Indefinite-lived Intangible Assets, Gross | 800 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |  | 881 dd_IndefiniteLivedIntangibleAssetsGross / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
Indefinite-lived Intangible Assets, Net | 800 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |  | 881 us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
Customer Lists [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | 1,706 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |  | 1,818 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |
Definite-lived Intangible Assets, Accumulated Amortization | (470)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |  | (393)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |
Definite-lived Intangible Assets, Net | 1,236 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |  | 1,425 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember |
Patents [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | 493 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 519 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Definite-lived Intangible Assets, Accumulated Amortization | (199)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | (160)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Definite-lived Intangible Assets, Net | 294 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |  | 359 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Purchased and Licensed Technology [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | 1,789 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |  | 1,999 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |
Definite-lived Intangible Assets, Accumulated Amortization | (1,074)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |  | (1,129)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |
Definite-lived Intangible Assets, Net | 715 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |  | 870 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = dd_PurchasedAndLicensedTechnologyMember |
Trademarks [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | 31 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  | 43 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |
Definite-lived Intangible Assets, Accumulated Amortization | (14)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  | (17)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |
Definite-lived Intangible Assets, Net | 17 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  | 26 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |
Other Intangible Assets [Member] |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Definite-lived Intangible Assets, Gross | 207 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3] | 242 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3]
Definite-lived Intangible Assets, Accumulated Amortization | (88)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3] | (106)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3]
Definite-lived Intangible Assets, Net | $ 119 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3] | $ 136 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | [3]
[1] | 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 an intangible asset upon the acquisition of Danisco. 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] | 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.
[3] | Primarily consists of sales and grower networks, marketing and manufacturing alliances and noncompetition agreements.

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