Segment Information - Reconciliation of Segment Adjusted EBITDA from Segments to Consolidated Income Before Income Taxes (Parenthetical) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Segment Reporting Information [Line Items] | |||||
| Loss on extinguishment of debt | $ (2) | $ 0 | $ (11) | $ 0 | |
| Litigation related charges | 225 | 293 | 244 | 293 | |
| Payments For Legal Settlements | $ 161 | ||||
| Environmental Charges | (144) | $ (60) | (150) | $ (60) | |
| PFOA [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Payments For Legal Settlements | 343 | ||||
| 2026 Consent Decree [Member] | Fayetteville Works, Fayetteville, North Carolina [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Additional environmental remediation reserves recognized | 141 | 141 | |||
| Leach settlement [Member] | E I D [Member] | Funding For Medical Monitoring Program [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Littigation settlement funded amount | $ 223 | $ 235 | |||