Supplementary Information (Non-Cash Activity) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Non-Cash Operating Activities | ||||
| ROU operating lease assets and liabilities | $ (3) | $ (16) | $ (125) | $ (424) |
| Non-Cash Investing Activities | ||||
| Property, plant and equipment accruals | (19) | (42) | 47 | 27 |
| Capitalized long-term incentives | 0 | (0) | (3) | (4) |
| Property additions/dispositions (swaps) | 1 | 6 | 5 | 33 |
| Non-Cash Financing Activities | ||||
| Finance lease assets and liabilities | 0 | 0 | (118) | 0 |
| Common shares issued in conjunction with the NuVista Acquisition (See Note 9) | $ 0 | $ 0 | $ (1,277) | $ 0 |