v3.25.4
Impairment of property, plant and equipment, goodwill, and other intangible assets - Narrative (Details)
$ in Millions
 12 Months Ended 252 Months Ended
Dec. 31, 2025
USD ($)
$ / bbl
$ / MMBTU
$ / Boe
$ / Tonne
Dec. 31, 2024
USD ($)
$ / MMBTU
$ / bbl
Dec. 31, 2023
USD ($)
Dec. 31, 2049
$ / MMBTU
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment of PPE, goodwill and intangible assets $ 100 $ 1,200    
Goodwill 161 510 $ 635  
Impairment losses on property, plant and equipment 2,799 3,673 8,182  
Impairment reversals $ 42 333 627  
Refining margin (USD per BBL) | $ / Boe 9      
Decrease in long-term refining margin assumptions (USD per BBL) | $ / Boe 1      
Increase in long-term refining margin assumptions (USD per BBL) | $ / Boe 1      
Impairment loss due to increase in long-term refining margin assumptions   0    
Average chemical margin (USD per ton) | $ / Tonne 299.5      
Cash flow projection period 20 years      
Decrease in long-term chemical margin assumptions (USD per ton) | $ / Tonne 30      
Increase in long-term chemical margin assumptions (USD per ton) | $ / Tonne 30      
Impairment reversal due to decrease in long-term chemical margin assumptions $ 0      
Percentage increase in discounting factor assumptions 1.00%      
Top of range        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to increase in long-term refining margin assumptions $ 1,500      
Impairment reversal due to decrease in long-term chemical margin assumptions $ 0      
Integrated Gas and Upstream        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Percentage decrease in commodity price assumptions (10.00%)      
Percentage increase in commodity price assumptions 10.00%      
Integrated Gas and Upstream | Bottom of range        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to decrease in commodity price assumptions $ 7,000      
Impairment reversal due to increase in commodity price assumptions 2,000      
Impairment loss due to increase in discount rates 3,000      
Integrated Gas and Upstream | Top of range        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to decrease in commodity price assumptions 10,000      
Impairment reversal due to increase in commodity price assumptions 5,000      
Impairment loss due to increase in discount rates $ 6,000      
Adura JV        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Percentage decrease in commodity price assumptions 10.00%      
Adura JV | Top of range        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to decrease in commodity price assumptions $ 1,000      
Chemicals and Products        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Decrease in long-term refining margin assumptions (USD per BBL) | $ / Boe (1)      
Increase in long-term refining margin assumptions (USD per BBL) | $ / Boe 1      
Chemicals and Products | Top of range        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversal due to increase in long-term refining margin assumptions $ 0      
Impairment loss due to decrease in long-term chemical margin assumptions 500      
Chemicals and Products        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to increase in discount rates 2,000      
Marketing        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment loss due to increase in discount rates 1,000      
Exploration and production        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment 881 783 4,820  
Impairment reversals 0 74 528  
Manufacturing, supply and distribution        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment 686 1,278 2,785  
Impairment reversals 1 114 91  
Other PPE        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment 1,232 1,612 577  
Impairment reversals $ 41 $ 145 8  
Brent crude oil ($/b)        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Commodity price after year 4 | $ / bbl 70 70    
Brent crude oil ($/b) | Adura JV        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Commodity price after year 4 | $ / bbl 70      
Henry Hub natural gas ($/MMBtu)        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Commodity price after year 4 | $ / MMBTU   5.00    
Commodity price increase after year 4 to year 24 | $ / MMBTU 3.50      
Henry Hub natural gas ($/MMBtu) | Forecast        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Commodity price | $ / MMBTU       4.50
Renewables and Energy Solutions        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Nominal post-tax discount rate 6.00% 6.00%    
PPE, goodwill and intangible assets $ 500 $ 900    
Impairment reversals   134    
Renewables and Energy Solutions | Other PPE        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment   $ 52 273  
All other segments        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Nominal post-tax discount rate 7.50% 7.50%    
All segments excluding renewables and energy solutions segment        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Nominal pre-tax discount rate 9.90%      
Marketing        
Disclosure of impairment loss and reversal of impairment loss [line items]        
PPE, goodwill and intangible assets   $ 1,000    
Marketing | Other PPE        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment $ 1,073 1,518 292  
Integrated Gas        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals     325  
Integrated Gas | Exploration and production        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment 677 543 3,472  
Upstream        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals     203  
Upstream | Exploration and production        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment losses on property, plant and equipment $ 197 240 $ 1,348  
Chemicals and Products        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals   $ 114