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Divestitures and Other Transactions Divestitures and Other Transactions - PChem Results of Operations (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Income (loss) from discontinued operations after income taxes |  | $ 55,000,000 | $ 671,000,000 | $ (1,748,000,000)
Chemours Contribution to MDL Settlement [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Litigation Settlement Amount |  | 29,000,000 |  |
MDL Settlement [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Litigation Settlement Amount |  | 83,000,000 |  |
PFOA Matters: Multi-District Litigation [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Litigation Settlement Amount | $ 670,700,000 |  |  |
Post-MDL Settlement PFOA Personal Injury Claims [Domain] | PFOA Matters: Drinking Water Actions [Member] | Compensatory Damages [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Litigation Settlement Amount |  | $ 40,000,000 |  |
Post-MDL Settlement PFOA Personal Injury Claims [Domain] | Settled Litigation [Member] | PFOA Matters: Drinking Water Actions [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Loss Contingency, Pending Claims, Number |  | 95 |  |
Performance Chemicals [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnified Liabilities for Liabilities Indemnified by Chemours |  | $ 39,000,000 |  |
Performance Chemicals [Member] | Accounts and Notes Receivable [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnification Assets for Liabilities Indemnified by Chemours |  | 66,000,000 |  |
Performance Chemicals [Member] | Other Assets [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnification Assets for Liabilities Indemnified by Chemours |  | 257,000,000 |  |
Performance Chemicals [Member] | Accrued and Other Current Liabilities [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnified Liabilities for Liabilities Indemnified by Chemours |  | 8,000,000 |  |
Performance Chemicals [Member] | Other Noncurrent Obligations [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnified Liabilities for Liabilities Indemnified by Chemours |  | 31,000,000 |  |
DuPont de Nemours [Member] | PFOA Matters: Multi-District Litigation [Member] | Corteva [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Litigation Settlement Amount | $ 335,000,000 |  |  |
DuPont de Nemours [Member] | Accounts and Notes Receivable [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnification Assets |  | 27,000,000 |  |
DuPont de Nemours [Member] | Other Assets [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnification Assets |  | 51,000,000 |  |
DuPont de Nemours [Member] | Accrued and Other Current Liabilities [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnified Liabilities |  | 5,000,000 |  |
DuPont de Nemours [Member] | Other Noncurrent Obligations [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Indemnified Liabilities |  | $ 79,000,000 |  |

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