Commitments and Contingent Liabilities Litigation (Details)	3 Months Ended	6 Months Ended	12 Months Ended	60 Months Ended	78 Months Ended
	Mar. 31, 2017 USD ($)	Jun. 30, 2018 USD ($) lawsuits	Dec. 31, 2004 USD ($)	Jul. 06, 2022	Jun. 30, 2018 USD ($) lawsuits	Jan. 01, 2012
PFOA Matters
Loss Contingencies [Line Items]
Accrual balance		$ 16,000,000			$ 16,000,000
PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Binding Settlement Agreement Class Size			80,000
Escrow Deposit					2,000,000
Litigation Settlement, Medical Monitoring Program, Escrow Account, Disbursements To Date					$ 1,000,000
Loss Contingency, Number Of Water Districts Receiving Water Treatment						6
PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
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
Period for sharing for PFOA liabilities				5 years
Predecessor [Member] | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Liability For Medical Monitoring Program, Threshold			$ 235,000,000
Predecessor [Member] | PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party	$ 670,700,000
Predecessor [Member] | Payment for Plaintiffs Attorney Fees [Member] | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Plaintiffs' attorneys' fees and expenses			23,000,000
Predecessor [Member] | Payment to fund community health project [Member] | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Payments to fund community health project			$ 70,000,000
WEST VIRGINIA AND OHIO [Domain] | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		35			35
NEW YORK | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		3			3
Loss Contingency, Number of Plaintiffs		5
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Additional Plaintiffs		100
Chemours [Member] | PFOA Matters
Loss Contingencies [Line Items]
Indemnification Assets		$ 16,000,000			$ 16,000,000
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