Commitments and Contingent Liabilities Environmental (Details) $ in Millions	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	$ 452	[1],[2]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	592	[1]
Indemnification Asset	220
Chemours related obligation subject to indemnification [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	159	[1],[2],[3],[4]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	262	[1],[3],[4]
Indemnification Asset	159	[3],[4]
Discontinued Operations [Member]
Loss Contingencies [Line Items]
Indemnification Asset	15	[3]
Environmental remediation liabilities primarily related to DuPont - subject to indemnity from DuPont [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	37	[1],[2],[4]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	66	[1],[4]
Indemnification Asset	37	[4]
Not subject to indemnification [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	99	[1],[2]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	28	[1]
Indemnification Asset	9
Other Discontinued or Divested Business Obligations
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	75	[1],[2],[3]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	187	[1],[3]
DuPont de Nemours [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability threshold	200
Superfund Sites [Member] | Chemours [Member] | Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Indemnification Asset	$ 40

[1] Accrual balance represents management’s best estimate of the costs of remediation and restoration, although it is reasonably possible that the potential exposure, as indicated, could range above the amounts accrued, as there are inherent uncertainties in these estimates. Accrual balance includes $68 million for remediation of Superfund sites. Amounts do not include possible impacts from the remediation elements of the EPAs October 2021 PFAS Strategic Roadmap (as applicable) or possible revisions to Chemours’ Consent Order with the North Carolina Department of Environmental Quality, as any possible impacts, to the extent such items would be reimbursable under the MOU, are not yet determinable.

[2] Represents liabilities that are subject to the $150 million threshold and sharing agreements as discussed on page F-44, under the header "Chemours / Performance Chemicals.

[3] Represents liabilities that are subject the $200 million threshold and sharing arrangements as discussed on page F-46, under Corteva Separation Agreement.

[4] The company has recorded an indemnification asset related to these accruals, including $40 million related to the Superfund sites.