XML 149 R130.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Pension Plans and Other Post Employment Benefit Plans Net Asset Value as a Practical Expedient (Details) - Pension Plan - USD ($) $ in Millions | 4 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Percentage of funds with gates in place for year-end redemptions (less than 5 percent) | 5.00% |
Lock Up Period | 1 year |
Private Market Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Average Remaining Life per Investment | 15 years |
Real Estate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Average Remaining Life per Investment | 15 years |
Successor [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value | $ 2,567 |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments | 1,168 |
Successor [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value | 747 |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments | 0 |
Successor [Member] | Private Market Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value | 1,383 |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments | 797 |
Successor [Member] | Real Estate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value | 437 |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments | $ 371 |
Predecessor [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value |  | $ 2,294
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments |  | 937
Predecessor [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value |  | 434
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments |  | 0
Predecessor [Member] | Private Market Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value |  | 1,416
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments |  | 693
Predecessor [Member] | Real Estate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Investments Measured at Net Asset Value |  | 444
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments |  | $ 244
Redemption Frequency, Monthly [Member] | Minimum [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Redemption Notice Period Range | 15 days |
Redemption Frequency, Monthly [Member] | Maximum [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Redemption Notice Period Range | 45 days |
Redemption Frequency, Quarterly [Member] | Minimum [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Redemption Notice Period Range | 10 days |
Redemption Frequency, Quarterly [Member] | Maximum [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Redemption Notice Period Range | 185 days |

X
- Definition Defined Benefit Plan, Alternative Investment, Average Remaining Life + References No definition available. + Details
Name: | dd_DefinedBenefitPlanAlternativeInvestmentAverageRemainingLife
Namespace Prefix: | dd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Benefit Plan, Lock Up Period + References No definition available. + Details
Name: | dd_DefinedBenefitPlanLockUpPeriod
Namespace Prefix: | dd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Benefit Plan, Percentage With Year End Redemptions + References No definition available. + Details
Name: | dd_DefinedBenefitPlanPercentageWithYearEndRedemptions
Namespace Prefix: | dd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value of investment in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes measurement of net asset value as estimate of fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258 + Details
Name: | us-gaap_AlternativeInvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Notice period the entity is required to deliver before it can redeem an investment calculated using net asset value per share, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, investments calculated by per unit, per membership interest, other equity or ownership interest and alternative investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258 + Details
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareInvestmentRedemptionNoticePeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258 + Details
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | dd_RedemptionFrequencyAxis=dd_RedemptionFrequencyMonthlyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dd_RedemptionFrequencyAxis=dd_RedemptionFrequencyQuarterlyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |