Commitments and Contingent Liabilities Corteva Separation (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
PFAS [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Corteva and DuPont stray liability threshold for PFAS	$ 1
De minimis threshold	1,000,000
Chemours [Member] | Accounts and Notes Receivable [Member]
Loss Contingencies [Line Items]
Indemnification Assets	144,000,000	$ 43,000,000	$ 57,000,000
Chemours [Member] | Other Assets [Member]
Loss Contingencies [Line Items]
Indemnification Assets	373,000,000	280,000,000	266,000,000
DuPont de Nemours and Dow [Member] | Accounts and Notes Receivable [Member]
Loss Contingencies [Line Items]
Indemnification Assets	123,000,000	47,000,000	44,000,000
DuPont de Nemours and Dow [Member] | Other Assets [Member]
Loss Contingencies [Line Items]
Indemnification Assets	246,000,000	143,000,000	122,000,000
DuPont de Nemours and Dow [Member] | Accrued and Other Current Liabilities [Member]
Loss Contingencies [Line Items]
Indemnified Liabilities	15,000,000	9,000,000	24,000,000
DuPont de Nemours and Dow [Member] | Other noncurrent obligations
Loss Contingencies [Line Items]
Indemnified Liabilities	$ 149,000,000	$ 149,000,000	$ 140,000,000
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%
DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage	71.00%
Corteva and DuPont stray liability threshold for PFAS	$ 200,000,000
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]
Stray liability threshold	$ 200,000,000
Corteva and DuPont | PFAS [Member]
Loss Contingencies [Line Items]
Amount credited to each company's threshold	$ 150,000,000
Stray liability sharing percentage for PFAS	50.00%
Corteva and DuPont | PFAS [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Corteva and Dupont stray liability threshold for PFAS	$ 300,000,000