Property, plant and equipment - Narrative (Details) $ in Millions |
Dec. 31, 2024
USD ($)
project
|
Dec. 31, 2023
USD ($)
|
|---|---|---|
| Property, plant and equipment [abstract] | ||
| Carrying amount of assets under construction | $ 27,852 | $ 28,135 |
| Carrying amount of rights and concessions in respect of proved and unproved properties | 5,411 | $ 6,097 |
| Contractual commitments for purchase and lease of property, plant and equipment | 7,815 | |
| Exploration drilling costs capitalised | $ 116 | |
| Number of projects where drilling activities were underway | project | 4 | |
| Projects awaiting development concepts | $ 1,298 | |
| Number of projects awaiting further development concepts | project | 38 |