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Commitments and Contingent Liabilities Litigation (Details) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended | 60 Months Ended | 93 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 01, 2015 USD ($) | Mar. 31, 2017 USD ($) | Sep. 30, 2019 USD ($) lawsuits | Dec. 31, 2004 USD ($) | Jul. 06, 2022 | Sep. 30, 2019 USD ($) lawsuits | Jan. 01, 2012
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | $ 204,000,000 |  |  | $ 204,000,000 |
PFOA Matters |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Accrual balance |  |  | $ 22,000,000 |  |  | 22,000,000 |
PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Binding Settlement Agreement Class Size |  |  |  | 80,000 |  |  |
Loss Contingency, Number Of Water Districts Receiving Water Treatment |  |  |  |  |  |  | 6
Litigation Settlement, Liability For Medical Monitoring Program, Threshold |  |  |  | $ 235,000,000 |  |  |
Litigation Settlement, Medical Monitoring Program, Escrow Account, Disbursements To Date |  |  |  |  |  | 2,000,000 |
Escrow Deposit |  |  |  |  |  | $ 1,000,000 |
Firefighting Foam [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 32 |  |  | 32 |
PFOA Matters: Multi-District Litigation [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Additional annual PFOA liabilities for the next five years paid by Corteva |  |  | $ 25,000,000 |  |  | $ 25,000,000 |
Disease Categories for MDL |  |  | 6 |  |  | 6 |
Lawsuits alleging personal injury filed | lawsuits |  |  | 3,550 |  |  | 3,550 |
Litigation Settlement, Amount Awarded to Other Party |  | $ 670,700,000 |  |  |  |  |
Loss Contingency, Limited Sharing of Potential Future Liabilities, Period |  |  |  |  | 5 years |  |
WEST VIRGINIA AND OHIO [Domain] | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 60 |  |  | 60 |
NEW YORK | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 51 |  |  | 51 |
NEW JERSEY | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 2 |  |  | 2 |
NEW JERSEY | Natural Resources Damages [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 4 |  |  | 4 |
OHIO | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 3 |  |  | 3 |
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 3 |  |  | 3 |
Loss Contingency, Number of Additional Plaintiffs |  |  | 200 |  |  |  |
DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Amount credited to each company's threshold |  |  | $ 150,000,000 |  |  | $ 150,000,000 |
Chemours [Member] | PFOA Matters |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | 22,000,000 |  |  | 22,000,000 |
Chemours [Member] | PFOA Matters: Multi-District Litigation [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Additional annual PFOA liabilities for the next five years paid by Chemours |  |  | 25,000,000 |  |  | 25,000,000 |
Other noncurrent obligations | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnified Liabilities |  |  | 71,000,000 |  |  | 71,000,000 |
Other noncurrent obligations | Chemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnified Liabilities |  |  | 290,000,000 |  |  | 290,000,000 |
Accounts and Notes Receivable [Member] | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | 36,000,000 |  |  | 36,000,000 |
Accounts and Notes Receivable [Member] | Chemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | 67,000,000 |  |  | 67,000,000 |
Other Assets [Member] | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | 57,000,000 |  |  | 57,000,000 |
Other Assets [Member] | Chemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnification Assets |  |  | 290,000,000 |  |  | 290,000,000 |
Accrued and Other Current Liabilities [Member] | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnified Liabilities |  |  | 15,000,000 |  |  | 15,000,000 |
Accrued and Other Current Liabilities [Member] | Chemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Indemnified Liabilities |  |  | $ 67,000,000 |  |  | $ 67,000,000 |
Not part of MDL or filed on behalf of Leach class members [Member] | PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  | 3 |  |  | 3 |
Corteva [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability sharing percentage |  |  | 29.00% |  |  | 29.00% |
Corteva [Member] | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability threshold |  |  | $ 200,000,000 |  |  | $ 200,000,000 |
Corteva [Member] | PFAS [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability sharing percentage |  |  | 50.00% |  |  | 50.00% |
DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability sharing percentage |  |  | 71.00% |  |  | 71.00% |
DuPont de Nemours [Member] | DuPont de Nemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability threshold |  |  | $ 200,000,000 |  |  | $ 200,000,000 |
DuPont de Nemours [Member] | PFAS [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability sharing percentage |  |  | 50.00% |  |  | 50.00% |
Chemours [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Proceeds from Dividends Received | $ 3,910,000,000 |  |  |  |  |  |
Minimum [Member] | PFAS [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability threshold |  |  | $ 1 |  |  | $ 1 |
Minimum [Member] | PFAS [Member] | Once $300 million threshold is met [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability threshold |  |  | 1,000,000 |  |  | 1,000,000 |
Maximum [Member] | PFAS [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Stray liability threshold |  |  | $ 300,000,000 |  |  | $ 300,000,000 |

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