Equity-accounted investee (Narrative) (Details) - JV Inkai [Member]	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Disclosure of significant investments in associates [Line Items]
Ownership interest in associates	40.00%	40.00%
Non-ownership interest in associate	60.00%

The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 17
-Subparagraph b
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 16
-Subparagraph b
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-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2021-01-01
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-Subparagraph a
-Clause iv
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-URIDate 2021-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration