v3.25.4
Property, plant and equipment - Useful Lives (Details)
 12 Months Ended
Dec. 31, 2025
Buildings | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 10 years
Buildings | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 30 years
Manufacturing plant, equipment and machinery | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 6 years
Manufacturing plant, equipment and machinery | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 25 years
Fixtures, mobile and other equipment | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 3 years
Fixtures, mobile and other equipment | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 10 years
Roads and bridges | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 40 years
Major maintenance shutdowns | Minimum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 1 year
Major maintenance shutdowns | Maximum  
Disclosure of detailed information about property, plant and equipment [line items]  
Useful life measured as period of time, property, plant and equipment 2 years