v3.25.2
Climate change and energy transition - Additional information 4 (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of Climate Change and Energy Transition [Line Items]    
Global oil production % 1.50%  
Global gas production % 2.00%  
Planning horizon 10 years  
Deferred tax $ 6,454 $ 7,815
Provision for decommissioning and restoration, undiscounted 33,000 33,000
Amount of provisions expected to be utilized $ 19,453 20,000
Decommissioning term 50 years  
Onerous contracts provision $ 1,100 1,500
Assets tested for exposure to climate related risks 70.00%  
Assets exposed to climate related risks 13.00%  
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 $ 241 $ 303
All other segments    
Disclosure of Climate Change and Energy Transition [Line Items]    
Nominal post-tax discount rate 7.50% 6.50%
Chemical & products and Marketing    
Disclosure of Climate Change and Energy Transition [Line Items]    
Deferred tax $ 455 $ 382
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 18,000  
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 $ 25,000  
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 | Chemicals and Products    
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  
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  
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 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 $ 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%