Property, plant and equipment - Narrative (Details) $ in Millions |
Dec. 31, 2025
USD ($)
project
|
Dec. 31, 2024
USD ($)
|
|---|---|---|
| Property, plant and equipment [abstract] | ||
| Carrying amount of assets under construction | $ 21,815 | $ 27,852 |
| Carrying amount of rights and concessions in respect of proved and unproved properties | 4,742 | $ 5,411 |
| Contractual commitments for purchase and lease of property, plant and equipment | 6,260 | |
| Contractual commitments for lease of property, plant and equipment | 2,940 | |
| Exploration drilling costs capitalised | $ 147 | |
| Number of projects where drilling activities were underway | project | 4 | |
| Projects awaiting development concepts | $ 1,535 | |
| Number of projects awaiting further development concepts | project | 31 |