Accounting For Suspended Exploratory Well Costs (Schedule Of Number Of Projects With Suspended Exploratory Well Costs) (Details) - project |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Oil and Gas, Capitalized Exploratory Well Cost [Abstract] | |||
| Number of projects that only have exploratory well costs capitalized for a period of one year or less | 1 | 5 | 0 |
| Number of projects that have exploratory well costs capitalized for a period greater than one year | 25 | 24 | 31 |
| Total | 26 | 29 | 31 |