Name:	dd_DisposalGroupNotDiscontinuedOperationGainLossonDisposalNetoftax
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The after-tax proceeds associated with the amount received from the sale of a portion of a company's business, for example, a segment, division, branch or other business, during the period.

No definition available.

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Separation related transaction costs primarily relate to professional fees associated with preparation of regulatory filings and separation activities.

No definition available.

Name:	dd_Separationrelatedtransactioncosts
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Data Type:	xbrli:monetaryItemType
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Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Name:	us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
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Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228

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Name:	dd_DivestituresandOtherTransactionsAxis=dd_GLSVinylsMember
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Name:	dd_DivestituresandOtherTransactionsAxis=dd_PerformanceChemicalsMember
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