Suspended Wells and Exploration Expenses - Net Changes in Suspended Exploratory Well Costs (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Oil and Gas, Capitalized Exploratory Well Cost [Roll Forward] | |||
| Beginning balance | $ 196 | $ 184 | $ 527 |
| Additions pending the determination of proved reserves | 113 | 32 | 0 |
| Reclassifications to proved properties | 0 | (2) | (285) |
| Sales of suspended wells | (30) | 0 | 0 |
| Charged to dry hole expense | (36) | (18) | (58) |
| Ending balance | $ 243 | $ 196 | $ 184 |