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Commitments and Contingent Liabilities DuPont (Details) | Jun. 30, 2020 USD ($)
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PFAS [Member] | Minimum [Member] |
Loss Contingencies [Line Items] |
Stray liability threshold | $ 1
PFAS [Member] | Minimum [Member] | Once $300 million threshold is met [Member] |
Loss Contingencies [Line Items] |
De minimis threshold | 1,000,000
PFAS [Member] | Maximum [Member] |
Loss Contingencies [Line Items] |
Stray liability threshold | 300,000,000
DuPont de Nemours [Member] |
Loss Contingencies [Line Items] |
Amount credited to each company's threshold | $ 150,000,000
Corteva [Member] |
Loss Contingencies [Line Items] |
Stray liability sharing percentage | 29.00%
Corteva [Member] | PFAS [Member] |
Loss Contingencies [Line Items] |
Stray liability sharing percentage | 50.00%
Corteva [Member] | DuPont de Nemours [Member] |
Loss Contingencies [Line Items] |
Stray liability threshold | $ 200,000,000
DuPont de Nemours [Member] |
Loss Contingencies [Line Items] |
Stray liability sharing percentage | 71.00%
DuPont de Nemours [Member] | PFAS [Member] |
Loss Contingencies [Line Items] |
Stray liability sharing percentage | 50.00%
DuPont de Nemours [Member] | DuPont de Nemours [Member] |
Loss Contingencies [Line Items] |
Stray liability threshold | $ 200,000,000

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- Definition Amount credited to each company's threshold for PFAS costs shared between DuPont and Corteva. + References No definition available. + Details
Name: | dd_Amountcreditedtoeachcompanysthreshold
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition De minimis requirement for which certain stray liabilities will be subject to for sharing arrangement between DuPont and Corteva. + References No definition available. + Details
Name: | dd_Deminimisthreshold
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Stray liability sharing percentage + References No definition available. + Details
Name: | dd_Strayliabilitysharingpercentage
Namespace Prefix: | dd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition For PFAS, starting at $1, Corteva and DuPont will share costs on a 50/50 basis. + References No definition available. + Details
Name: | dd_Strayliabilitythreshold
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_LitigationCaseAxis=dd_PFASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_StatementScenarioAxis=dd_Once300millionthresholdismetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_CounterpartyNameAxis=dd_DuPontdeNemoursMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=dd_CortevaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |