v3.26.1
Commitments and Contingent Liabilities Other PFOA Matters / Fayetteville (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
lawsuits
Sep. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
lawsuits
Aug. 03, 2025
USD ($)
Mar. 31, 2019
Corteva [Member]          
Loss Contingencies [Line Items]          
Stray liability sharing percentage 29.00%   29.00%    
DuPont de Nemours [Member]          
Loss Contingencies [Line Items]          
Stray liability sharing percentage 71.00%   71.00%    
NEW JERSEY | New Jersey Statewide Settlement [Member]          
Loss Contingencies [Line Items]          
New Jersey Statewide Settlement Reserve Fund   $ 475,000,000      
NEW JERSEY | Chemours [Member]          
Loss Contingencies [Line Items]          
Purchase of Chemours' Future Interest in Insurance Proceeds       $ 150,000,000  
Litigation Settlement, Purchase of Chemours' Future Interest in Insurance Proceeds, Fee Threshold I       35,000,000  
Litigation Settlement, Purchase of Chemours' Future Interest in Insurance Proceeds, Fee Threshold II       $ 3,000,000  
Purchase of Chemours' Future Interest in Insurance Proceeds, Fee Interest Rate       2.00%  
NEW JERSEY | Corteva [Member] | Chemours [Member]          
Loss Contingencies [Line Items]          
Purchase of Chemours' Future Interest in Insurance Proceeds       $ 44,000,000  
NEW JERSEY | DuPont de Nemours [Member] | Chemours [Member]          
Loss Contingencies [Line Items]          
Purchase of Chemours' Future Interest in Insurance Proceeds       $ 106,000,000  
NEW JERSEY | New Jersey Statewide Settlement [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Pending Claims, Number         4
Litigation Settlement, Amount Awarded to Other Party   $ 875,000,000      
Litigation Settlement, Amount Awarded to Other Party, Period   25 years      
Litigation Settlement, Amount Awarded to Other Party, Present value   $ 500,000,000      
Litigation Settlement, Amount Awarded to Other Party, Discount Rate   8.00%      
Litigation Settlement, Amount Allocated to Statewide NRD   $ 16,000,000      
Litigation Settlement, Percentage of Allocated Statewide NRD for Alleged Statewide AFFF Contamination   25.00%      
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax   $ 72,000,000      
Discontinued Operation, Income (Loss) from Discontinued Operation, after Income Tax   $ 58,000,000      
NEW JERSEY | New Jersey Statewide Settlement [Member] | DuPont de Nemours [Member]          
Loss Contingencies [Line Items]          
Historical DuPont Operating Sites   4      
NEW JERSEY | PFAS [Member] | New Jersey Statewide Settlement [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 2   2    
New Jersey & New York [Member] | PFAS [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Pending Claims, Number | lawsuits 2   2    
DELAWARE | Natural Resources Damages [Member] | Corteva [Member] | DuPont de Nemours [Member]          
Loss Contingencies [Line Items]          
Period for supplemental payment     8 years    
Threshold for payments to fund the NRST Trust $ 50,000,000   $ 50,000,000    
Supplemental payment threshold $ 25,000,000   $ 25,000,000    
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Number of Property Owners     2,400    
NETHERLANDS | PFOA Matters: Drinking Water Actions [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Number of Residents 1,700