v3.25.4
Climate change and energy transition - Additional Information 3 (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
outlook
$ / MMBTU
$ / bbl
Dec. 31, 2024
USD ($)
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment $ 185,077 $ 185,219
Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 61,000 60,000
Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment $ 60,200 63,400
Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Number of external price outlooks | outlook 3  
Priceline 1 | Maximum | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Recoverable amount   15,000
Priceline 1 | Maximum | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Recoverable amount   3,000
Priceline 1 | Minimum | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Recoverable amount   11,000
Priceline 1 | Minimum | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Recoverable amount   1,000
IEA NZE50 | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment $ 77,000 74,000
IEA NZE50 | Integrated Gas | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (15,000) (21,000)
IEA NZE50 | Integrated Gas | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (19,000) (27,000)
IEA NZE50 | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 77,000
IEA NZE50 | Upstream | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (5,000) (5,000)
IEA NZE50 | Upstream | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (7,000) (7,000)
Shell mid-price | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 74,000
Shell mid-price | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 77,000
-2 Degrees Celsius External Climate Change    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 154,000 151,000
-2 Degrees Celsius External Climate Change | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 74,000
-2 Degrees Celsius External Climate Change | Integrated Gas | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (13,000) (11,000)
-2 Degrees Celsius External Climate Change | Integrated Gas | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (17,000) (15,000)
-2 Degrees Celsius External Climate Change | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 77,000
-2 Degrees Celsius External Climate Change | Upstream | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (3,000) (1,000)
-2 Degrees Celsius External Climate Change | Upstream | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (5,000) (3,000)
Hybrid Shell Plan + IEA NZE50 | Integrated Gas    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 74,000
Hybrid Shell Plan + IEA NZE50 | Integrated Gas | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (9,000) (7,000)
Hybrid Shell Plan + IEA NZE50 | Integrated Gas | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (13,000) (10,000)
Hybrid Shell Plan + IEA NZE50 | Upstream    
Disclosure of Climate Change and Energy Transition [Line Items]    
Property, plant and equipment 77,000 77,000
Hybrid Shell Plan + IEA NZE50 | Upstream | Bottom of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices (1,000) 0
Hybrid Shell Plan + IEA NZE50 | Upstream | Top of range    
Disclosure of Climate Change and Energy Transition [Line Items]    
Sensitivity effect of change in average prices $ (3,000) $ (1,000)
2025 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 11  
2026 | IHS Markit ACCS 2025 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 65  
Expected gas price (USD per barrel) | $ / MMBTU 4  
2026 | IHS Markit ACCS 2025 | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 9  
2026 | IHS Markit ACCS 2025 | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 10  
2026 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 64  
2026 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 10  
2026 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Henry Hub natural gas ($/MMBtu)    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 4  
2026 | IEA NZE50    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 72  
2026 | IEA NZE50 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 72  
2026 | IEA NZE50 | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / bbl 9  
2026 | IEA NZE50 | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / bbl 12  
2026 | IEA NZE50 | Priceline 1 | Henry Hub natural gas ($/MMBtu)    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / bbl 2  
2026 | Shell mid-price    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 59  
2030 | IHS Markit ACCS 2025 | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 5  
2030 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 6  
2030 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 7  
2030 | IEA NZE50    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 55  
2030 | Shell mid-price    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 70  
2031 | IHS Markit ACCS 2025 | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 4  
2032 | IHS Markit ACCS 2025 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 51  
2033 | IHS Markit ACCS 2025 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 48  
2035 | IHS Markit ACCS 2025 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 44  
2035 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 9  
2035 | IEA NZE50    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 34  
2035 | IEA NZE50 | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / bbl 5  
2035 | Shell mid-price    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 70  
2036 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 10  
2050 | IHS Markit ACCS 2025 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 3  
2050 | IHS Markit ACCS 2025 | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 5  
2050 | IHS Markit ACCS 2025 | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 6  
2050 | IHS Markit ACCS 2025 | Priceline 1 | Henry Hub natural gas ($/MMBtu)    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 4  
2050 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 29  
2050 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 6  
2050 | Woodmac WM AET-1 5 Degree (2024) | Priceline 1 | Asia    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / MMBTU 7  
2050 | IEA NZE50    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 26  
2050 | IEA NZE50 | Priceline 1    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 26  
2050 | IEA NZE50 | Priceline 1 | Europe    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected gas price (USD per barrel) | $ / bbl 4  
2050 | Shell mid-price    
Disclosure of Climate Change and Energy Transition [Line Items]    
Expected oil price (USD per barrel) | $ / bbl 70