Impairment of property, plant and equipment, goodwill, and other intangible assets - Commodity Price Assumptions (Details) |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2023
$ / MMBTU
$ / bbl
|
Dec. 31, 2022
$ / bbl
$ / MMBTU
|
|
| Brent crude oil ($/b) | ||
| Explanation Of Inputs Assumptions And Estimation Techniques Used To Apply Impairment Requirements Explanatory [Line Items] | ||
| 2024 | $ / bbl | 70 | 80 |
| 2025 | $ / bbl | 70 | 70 |
| 2026 | $ / bbl | 70 | 70 |
| 2027 | $ / bbl | 74 | 71 |
| Henry Hub natural gas ($/MMBtu) | ||
| Explanation Of Inputs Assumptions And Estimation Techniques Used To Apply Impairment Requirements Explanatory [Line Items] | ||
| 2024 | $ / MMBTU | 4.00 | 4.00 |
| 2025 | $ / MMBTU | 4 | 3.50 |
| 2026 | $ / MMBTU | 4 | 3.50 |
| 2027 | $ / MMBTU | 4 | 3.98 |