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Commitments and Contingent Liabilities Chemours (Details)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2021
USD ($)
lawsuits
Dec. 31, 2028
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2017
lawsuits
PFAS [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      
Corteva and DuPont stray liability threshold for PFAS     $ 300.0      
PFOA Matters: Multi-District Litigation [Member]            
Loss Contingencies [Line Items]            
Litigation Settlement, Amount Awarded to Other Party $ 670.7          
Lawsuits alleging personal injury filed | lawsuits           3,550
PFOA Matters: Drinking Water Actions [Member] | WEST VIRGINIA AND OHIO [Domain] | Scheduled for trial [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Pending Claims, Number | lawsuits     96      
DuPont de Nemours [Member]            
Loss Contingencies [Line Items]            
Amount credited to each company's threshold     $ 150.0      
Chemours [Member] | PFAS [Member]            
Loss Contingencies [Line Items]            
Annual Escrow Deposit         $ 100.0  
Annual Escrow Deposit, remainder of period       50.0    
Chemours [Member] | PFAS [Member] | Maximum [Member]            
Loss Contingencies [Line Items]            
Total Escrow Deposit Amount       500.0    
Corteva [Member]            
Loss Contingencies [Line Items]            
Stray liability sharing percentage     29.00%      
Corteva [Member] | PFAS [Member]            
Loss Contingencies [Line Items]            
Stray liability sharing percentage for PFAS     50.00%      
Corteva [Member] | DuPont de Nemours [Member] | PFAS [Member]            
Loss Contingencies [Line Items]            
Stray liability sharing percentage for PFAS     50.00%      
Annual Escrow Deposit         $ 100.0  
Annual Escrow Deposit, remainder of period       50.0    
Escrow Account Deposit Percentage     50.00%      
Corteva [Member] | DuPont de Nemours [Member] | PFAS [Member] | Maximum [Member]            
Loss Contingencies [Line Items]            
Qualified Spend and Escrow Account Contribution Threshold     $ 2,000.0      
Total Escrow Deposit Amount       $ 500.0    
Corteva [Member] | DuPont de Nemours [Member] | PFOA Matters: Multi-District Litigation [Member]            
Loss Contingencies [Line Items]            
Litigation Settlement, Amount Awarded to Other Party   $ 335.0        
DuPont de Nemours [Member]            
Loss Contingencies [Line Items]            
Stray liability sharing percentage     71.00%      
DuPont de Nemours [Member] | PFAS [Member]            
Loss Contingencies [Line Items]            
Stray liability sharing percentage for PFAS     50.00%      
DuPont de Nemours [Member] | DuPont de Nemours [Member]            
Loss Contingencies [Line Items]            
Corteva and DuPont stray liability threshold for PFAS     $ 200.0