Commitments and Contingent Liabilities Other PFOA Matters / Fayetteville (Details) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2020 USD ($)	Sep. 30, 2023 USD ($) lawsuits
Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits		5,400
PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party	$ 670.0
Loss Contingency, Number of Plaintiffs | lawsuits		23
Personal injury cases [Member] | Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		4,700
Chemours Contribution to MDL Settlement
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 29.0
Water System MOU | Pending Litigation
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 1,185.0
Public U.S Water Systems [Member] | Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		640
NEW YORK | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		45
NEW JERSEY | Natural Resources Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		2
OHIO | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits		3
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Property Owners		100
DELAWARE | Natural Resources Damages [Member] | Corteva [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Threshold for payments to fund the NRST Trust		$ 50.0
Supplemental payment threshold		$ 25.0
Period for supplemental payment		8 years
Alabama Water Utility [Member] | Natural Resources Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		1