Commitments and Contingent Liabilities Environmental (Details) $ in Millions |
Jun. 30, 2026
USD ($)
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| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | $ 363 | |||||||||
| Accrual for Environmental Loss Contingencies | 580 | |||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 586 | |||||||||
| Superfund Sites [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Accrual for Environmental Loss Contingencies | 48 | |||||||||
| Superfund Sites [Member] | Chemours [Member] | Indemnification Agreement [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 21 | |||||||||
| DuPont de Nemours [Member] | DuPont de Nemours [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Stray liability threshold | 200 | |||||||||
| Chemours related obligation subject to indemnification [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 277 | [1],[2] | ||||||||
| Accrual for Environmental Loss Contingencies | 294 | [1],[2],[3] | ||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 204 | [1],[2],[3] | ||||||||
| Discontinued Operations [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 36 | [1] | ||||||||
| Other discontinued or divested business obligations [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Accrual for Environmental Loss Contingencies | 73 | [1],[3] | ||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 202 | [1],[3] | ||||||||
| Environmental remediation liabilities primarily related to DuPont - subject to indemnity from DuPont [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 50 | [2] | ||||||||
| Accrual for Environmental Loss Contingencies | 54 | [2],[3] | ||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 53 | [2],[3] | ||||||||
| Not subject to indemnification [Member] | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 0 | |||||||||
| Accrual for Environmental Loss Contingencies | 104 | |||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 116 | |||||||||
| Indemnification liabilities related to the MOU | ||||||||||
| Loss Contingencies [Line Items] | ||||||||||
| Indemnification Asset | 0 | [4] | ||||||||
| Accrual for Environmental Loss Contingencies | 55 | [3],[4] | ||||||||
| Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | $ 11 | [3],[4] | ||||||||
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