Line of credit facility, amount pledged as collateral against outstanding borrowings.

No definition available.

Name:	dd_Lineofcreditfacilityamountpledgedascollateral
Namespace Prefix:	dd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of borrowings permitted.

+ References

No definition available.

+ Details

Name:	dd_Numberofborrowingspermitted
Namespace Prefix:	dd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Period from closing date for allowed borrowings.

+ References

No definition available.

+ Details

Name:	dd_Periodfromclosingdateforallowedborrowings
Namespace Prefix:	dd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Portion of outstanding borrowing amounts required as collateral.

+ References

No definition available.

+ Details

Name:	dd_Portionofoutstandingborrowingamountsrequiredascollateral
Namespace Prefix:	dd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

[Line Items] for Schedule of Debt [Table]

+ References

No definition available.

+ Details

Name:	dd_ScheduleofDebtLineItems
Namespace Prefix:	dd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Line-of-Credit Arrangement
-URI http://asc.fasb.org/extlink&oid=6517033

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20
-Article 5

+ Details

Name:	us-gaap_LinesOfCreditCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1314-112600

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1336-112600

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Line-of-Credit Arrangement
-URI http://asc.fasb.org/extlink&oid=6517033

+ Details

Name:	us-gaap_LongTermLineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=dd_RepurchaseFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=dd_AccountsAndNotesReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_ShortTermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=dd_TermLoanFacilitydue2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_LongTermDebtMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

- Details

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- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=dd_MarginMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
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Short-Term and Long-Term Borrowings (Details) $ in Millions	6 Months Ended	36 Months Ended
Short-Term and Long-Term Borrowings (Details) $ in Millions	Jun. 30, 2016 USD ($)	Mar. 22, 2019	Mar. 22, 2016 USD ($) yr borrowings	Feb. 03, 2016 USD ($)
Repurchase Facility [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 1,000
Portion of outstanding borrowing amounts required as collateral				105.00%
Repurchase Facility [Member] \| Accounts and Notes Receivable [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Amount Pledged as Collateral	$ 1,050
Repurchase Facility [Member] \| Short-term Debt [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Outstanding Borrowings, Current	1,000
Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 4,500
Number of borrowings permitted \| borrowings			7
Period from closing date for allowed borrowings \| yr			1
Line of Credit Facility, Remaining Borrowing Capacity	4,000
Term Loan Facility due 2019 [Member] \| Long-term Debt [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Outstanding Borrowings, Noncurrent	$ 500
London Interbank Offered Rate (LIBOR) [Member] \| Repurchase Facility [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Federal Funds Effective Rate [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Minimum [Member] \| Margin [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Maximum [Member] \| Margin [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Scenario, Forecast [Member] \| Term Loan Facility due 2019 [Member]
Schedule of Debt [Line Items]
Line of Credit Facility, Expiration Period		3 years