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Significant accounting policies (Details)	6 Months Ended
	Jun. 30, 2023
Buildings | Minimum
Significant accounting policies
Estimated useful lives	10 years
Buildings | Maximum
Significant accounting policies
Estimated useful lives	45 years
Plant and equipment | Minimum
Significant accounting policies
Estimated useful lives	3 years
Plant and equipment | Maximum
Significant accounting policies
Estimated useful lives	30 years
ROU asset | Minimum
Significant accounting policies
Estimated useful lives	2 years
ROU asset | Maximum
Significant accounting policies
Estimated useful lives	30 years

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2023-01-01
-Paragraph 73
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_c&doctype=Standard
-URIDate 2023-03-23

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