Commitments and Contingent Liabilities Litigation (Details)	3 Months Ended	12 Months Ended		60 Months Ended	84 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) lawsuits	Dec. 31, 2004 USD ($)	Jul. 06, 2022	Dec. 31, 2018 USD ($) lawsuits	Jan. 01, 2012
PFOA Matters [Member]
Loss Contingencies [Line Items]
Accrual balance		$ 20,000,000			$ 20,000,000
PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number Of Water Districts Receiving Water Treatment						6
Escrow Deposits to Date					2,000,000
Escrow Disbursements to Date					$ 1,000,000
Disease Categories for MDL		6			6
Lawsuits alleging personal injury filed | lawsuits		3,550			3,550
Loss Contingency, Limited Sharing of Potential Future Liabilities, Period				5 years
Additional annual PFOA liabilities for the next five years paid by DuPont		$ 25,000,000			$ 25,000,000
PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		43			43
NEW YORK | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		25			25
NEW JERSEY | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		2			2
ALABAMA | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		1			1
OHIO | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		2			2
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Additional Plaintiffs		100
Chemours [Member] | PFOA Matters [Member]
Loss Contingencies [Line Items]
Indemnification Assets		$ 20,000,000			$ 20,000,000
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
Predecessor [Member] | PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Binding Settlement Agreement Class Size			80,000
Litigation Settlement, Liability For Medical Monitoring Program, Threshold			$ 235,000,000
Litigation Settlement, Amount Awarded to Other Party	$ 670,700,000
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