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Commitments and Contingent Liabilities Chemours (Details)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2017
USD ($)
lawsuits
Sep. 30, 2024
USD ($)
Dec. 31, 2028
USD ($)
PFOA Matters: Multi-District Litigation [Member]      
Loss Contingencies [Line Items]      
Litigation Settlement, Amount Awarded to Other Party $ 670.0    
Lawsuits alleging personal injury filed | lawsuits 3,550    
Corteva [Member]      
Loss Contingencies [Line Items]      
Stray liability sharing percentage   29.00%  
DuPont de Nemours [Member]      
Loss Contingencies [Line Items]      
Corteva and DuPont stray liability threshold for PFAS   $ 200.0  
Stray liability sharing percentage   71.00%  
PFAS [Member]      
Loss Contingencies [Line Items]      
Minimum Settlement Amount Required To Allow Withdrawals From Escrow Account   $ 125.0  
Threshold to waive MOU escrow account funding obligation   $ 100.0  
PFAS [Member] | Forecast [Member]      
Loss Contingencies [Line Items]      
Escrow Account Balance     $ 700.0
PFAS [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Cost Sharing Arrangement Term   20 years  
Qualified Spend and Escrow Account Contribution Threshold   $ 4,000.0  
PFAS [Member] | Chemours [Member]      
Loss Contingencies [Line Items]      
Escrow Account Deposit Percentage   50.00%  
PFAS [Member] | Chemours [Member] | No later than September 30 of each subsequent year through and including 2028      
Loss Contingencies [Line Items]      
Escrow Balance   $ 50.0  
PFAS [Member] | Chemours [Member] | No later than each of September 30, 2021 and September 30, 2022      
Loss Contingencies [Line Items]      
Escrow Balance   100.0  
PFAS [Member] | Chemours [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Escrow Balance   $ 500.0  
PFAS [Member] | Corteva [Member]      
Loss Contingencies [Line Items]      
Stray liability sharing percentage for PFAS   50.00%  
PFAS [Member] | Corteva [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Qualified Spend and Escrow Account Contribution Threshold   $ 600.0  
PFAS [Member] | DuPont de Nemours [Member]      
Loss Contingencies [Line Items]      
Stray liability sharing percentage for PFAS   50.00%  
PFAS [Member] | Corteva and DuPont      
Loss Contingencies [Line Items]      
Stray liability sharing percentage for PFAS   50.00%  
Escrow Account Deposit Percentage   50.00%  
Amount credited to each company's threshold   $ 150.0  
PFAS [Member] | Corteva and DuPont | No later than September 30 of each subsequent year through and including 2028      
Loss Contingencies [Line Items]      
Escrow Balance   50.0  
PFAS [Member] | Corteva and DuPont | No later than each of September 30, 2021 and September 30, 2022      
Loss Contingencies [Line Items]      
Escrow Balance   100.0  
PFAS [Member] | Corteva and DuPont | Maximum [Member]      
Loss Contingencies [Line Items]      
Qualified Spend and Escrow Account Contribution Threshold   2,000.0  
Corteva and DuPont stray liability threshold for PFAS   300.0  
Escrow Balance   $ 500.0