v3.25.2
Climate change and energy transition - Additional information 6 (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of Climate Change and Energy Transition [Line Items]    
Global oil production % 1.50%  
Global gas production % 2.00%  
Deferred tax $ 6,857 $ 6,454
Provision for decommissioning and restoration, undiscounted 32,000 33,000
Amount of provisions expected to be utilized $ 18,484 19,000
Decommissioning term 50 years  
Onerous contracts provision $ 1,100 1,100
Assets tested for exposure to climate related risks 70.00%  
Assets exposed to climate related risks 12.00%  
Forecast | Retained earnings    
Disclosure of Climate Change and Energy Transition [Line Items]    
Increase through realisation of merger reserve $ 234,000  
Brazil, Malaysia and Australia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Deferred tax $ 625 $ 241
All other segments    
Disclosure of Climate Change and Energy Transition [Line Items]    
Nominal post-tax discount rate 7.50% 7.50%
Chemical & products and Marketing    
Disclosure of Climate Change and Energy Transition [Line Items]    
Deferred tax $ 315 $ 455
Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Planning horizon 10 years  
Bottom of range | Integrated Gas and Upstream segments | IEA NZE50 | Forecast    
Disclosure of Climate Change and Energy Transition [Line Items]    
Decrease in recoverable amount of assets $ (26,000)  
Top of range | Integrated Gas and Upstream segments | IEA NZE50 | Forecast    
Disclosure of Climate Change and Energy Transition [Line Items]    
Decrease in recoverable amount of assets $ (34,000)  
Actuarial assumption of discount rates    
Disclosure of Climate Change and Energy Transition [Line Items]    
Range of assumptions, possible increase 1.00%  
Actuarial assumption of discount rates | All other segments    
Disclosure of Climate Change and Energy Transition [Line Items]    
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets $ 0 1,000
Actuarial assumption of discount rates | Bottom of range | Integrated Gas and Upstream segments    
Disclosure of Climate Change and Energy Transition [Line Items]    
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets 1,000 2,000
Actuarial assumption of discount rates | Top of range | Integrated Gas and Upstream segments    
Disclosure of Climate Change and Energy Transition [Line Items]    
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets $ 3,000 $ 4,000
Power infrastructure    
Disclosure of Climate Change and Energy Transition [Line Items]    
Nominal post-tax discount rate 7.50%  
Other PPE    
Disclosure of Climate Change and Energy Transition [Line Items]    
Nominal post-tax discount rate 6.00%