XML 47 R34.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Planned Merger with Dow Chemical (Narrative) (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Proposed Merger with Dow Chemical [Line Items] |  |  |  |  |  |
Timing of intended spinoffs after closing of merger, months | 18 |  | 18 |  |  |
Merger related transaction costs | $ 216 | $ 76 | $ 386 | $ 100 |  |
Scenario, Forecast [Member] |  |  |  |  |  |
Proposed Merger with Dow Chemical [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  | $ 1,200
Business Combination, working capital |  |  |  |  |  | $ 425
Substantial Detriment |  |  |  |  | $ 350 |

X
- Definition Business Combination, expected net value of working capital at closing + References No definition available. + Details
Name: | dd_BusinessCombinationworkingcapital
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition FMC payment to DuPont to acquire Ag business + References No definition available. + Details
Name: | dd_FMCpaymenttoDuPonttoacquireAgbusiness
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Transaction costs associated with the planned merger with the Dow Chemical Company. + References No definition available. + Details
Name: | dd_Mergerrelatedtransactioncosts
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition [Line Items] for The disclosure of the proposed merger with the Dow Chemical Company. + References No definition available. + Details
Name: | dd_ProposedMergerwithDowChemicalLineItems
Namespace Prefix: | dd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition DuPont is not required to take certain specified actions to obtain regulatory approval with respect to the acquisition of the Acquired H&N Business that would reasonably be likely to result in the one-year loss of revenues to DuPont, Dow, DowDuPont Inc., their respective subsidiaries or the Acquired H&N Business that would be a substantial detriment + References No definition available. + Details
Name: | dd_SubstantialDetriment
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Timing of intended spinoffs after closing of merger, months + References No definition available. + Details
Name: | dd_Timingofintendedspinoffsafterclosingofmergermonths
Namespace Prefix: | dd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |