v3.25.4
Climate change and energy transition - Sensitivity Analysis (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
$ / bbl
Dec. 31, 2024
USD ($)
$ / bbl
Dec. 01, 2025
USD ($)
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment $ 185,077 $ 185,219  
Carrying amount of interests in joint ventures $ 19,814 $ 15,783  
Adura JV      
Disclosure of Climate Change and Energy Transition [Line Items]      
Percentage decrease in commodity price assumptions 10.00%    
Brent crude oil ($/b)      
Disclosure of Climate Change and Energy Transition [Line Items]      
Commodity price after year 4 | $ / bbl 70 70  
Brent crude oil ($/b) | Adura JV      
Disclosure of Climate Change and Energy Transition [Line Items]      
Commodity price after year 4 | $ / bbl 70    
Equinor | Adura JV      
Disclosure of Climate Change and Energy Transition [Line Items]      
Carrying amount of interests in joint ventures     $ 4,991
-2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment $ 154,000 $ 151,000  
Integrated Gas and Upstream segments | Maximum      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity -10% to the mid-price outlook (10,000) (9,000)  
Integrated Gas and Upstream segments | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 154,000 151,000  
Integrated Gas and Upstream segments | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 154,000 151,000  
Integrated Gas and Upstream segments | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 154,000 151,000  
Integrated Gas and Upstream segments | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 193,000 189,000  
Integrated Gas      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 61,000 60,000  
Integrated Gas | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 74,000  
Integrated Gas | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 74,000  
Integrated Gas | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 74,000  
Integrated Gas | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 74,000  
Integrated Gas | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 74,000  
Upstream      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 60,200 63,400  
Upstream | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 77,000  
Upstream | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 77,000  
Upstream | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 77,000  
Upstream | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 77,000  
Upstream | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 77,000 77,000  
Chemicals and Products      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 33,600 32,600  
Chemicals and Products | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Property, plant and equipment 39,000 38,000  
Bottom of range | Integrated Gas and Upstream segments | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 2,000 2,000  
Sensitivity -10% to the mid-price outlook   (5,000)  
Bottom of range | Integrated Gas and Upstream segments | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (16,000) (12,000)  
Bottom of range | Integrated Gas and Upstream segments | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (10,000) (7,000)  
Bottom of range | Integrated Gas and Upstream segments | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (20,000) (26,000)  
Bottom of range | Integrated Gas and Upstream segments | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (4,000) (2,000)  
Bottom of range | Integrated Gas | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 2,000 2,000  
Sensitivity -10% to the mid-price outlook 7,000 (4,000)  
Bottom of range | Integrated Gas | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (13,000) (11,000)  
Bottom of range | Integrated Gas | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (9,000) (7,000)  
Bottom of range | Integrated Gas | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (15,000) (21,000)  
Bottom of range | Integrated Gas | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (2,000) (1,000)  
Bottom of range | Upstream | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 0 0  
Sensitivity -10% to the mid-price outlook 0 (1,000)  
Bottom of range | Upstream | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (3,000) (1,000)  
Bottom of range | Upstream | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (1,000) 0  
Bottom of range | Upstream | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (5,000) (5,000)  
Bottom of range | Upstream | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices 0 0  
Bottom of range | Chemicals and Products | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (2,000) (1,000)  
Top of range | Adura JV      
Disclosure of Climate Change and Energy Transition [Line Items]      
Impairment loss due to decrease in commodity price assumptions 1,000    
Top of range | Integrated Gas and Upstream segments | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 5,000 5,000  
Sensitivity -10% to the mid-price outlook   (9,000)  
Top of range | Integrated Gas and Upstream segments | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (22,000) (18,000)  
Top of range | Integrated Gas and Upstream segments | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (16,000) (11,000)  
Top of range | Integrated Gas and Upstream segments | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (26,000) (34,000)  
Top of range | Integrated Gas and Upstream segments | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (7,000) (5,000)  
Top of range | Integrated Gas | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 4,000 4,000  
Sensitivity -10% to the mid-price outlook 9,000 (6,000)  
Top of range | Integrated Gas | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (17,000) (15,000)  
Top of range | Integrated Gas | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (13,000) (10,000)  
Top of range | Integrated Gas | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (19,000) (27,000)  
Top of range | Integrated Gas | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (3,000) (2,000)  
Top of range | Upstream | Shell mid-price      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity +10% to the mid-price outlook 1,000 1,000  
Sensitivity -10% to the mid-price outlook 1,000 (3,000)  
Top of range | Upstream | -2 Degrees Celsius External Climate Change      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (5,000) (3,000)  
Top of range | Upstream | Hybrid Shell Plan + IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (3,000) (1,000)  
Top of range | Upstream | IEA NZE50      
Disclosure of Climate Change and Energy Transition [Line Items]      
Sensitivity effect of change in average prices (7,000) (7,000)  
Top of range | Upstream | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices (1,000) (1,000)  
Top of range | Chemicals and Products | IEA NZE 2050      
Disclosure of Climate Change and Energy Transition [Line Items]      
Effect of change in average carbon prices $ (3,000) $ (2,000)