XML 95 R81.htm IDEA: XBRL DOCUMENT v3.23.1
Basis of Preparation and Accounting Policies - Estimated Useful Life of Assets (Detail)
 12 Months Ended
Dec. 31, 2022
Freehold buildings [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 50 years
Leasehold buildings and improvements [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Description of estimated useful life of Property, plant and equipment 50 years or period of lease, whichever is shorter
Bottom of range [member] | Plant, machinery and equipment [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 2 years
Bottom of range [member] | Office furniture, fittings and equipment [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 2 years
Bottom of range [member] | Motor and transport vehicles [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 4 years
Top of range [member] | Plant, machinery and equipment [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 20 years
Top of range [member] | Office furniture, fittings and equipment [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 20 years
Top of range [member] | Motor and transport vehicles [member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Estimated useful life of Property, plant and equipment 11 years