Financial instruments by category (Details 4) - Derivative financial instruments Forwards [Member] - Level 2 [Member]	12 Months Ended
Jun. 30, 2023
Statement [Line Items]
Description	Derivative financial instruments - Swaps and Commodities options contracts
Parameters	Underlying asset price and volatility

The description of the level of the fair value hierarchy within which the fair value measurement is categorised in its entirety (without giving regard to the observability of 'costs of disposal') for a cash-generating unit (group of units'). [Refer: Cash-generating units [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2022-03-24
-Paragraph 134
-Subparagraph e
-Clause iiA
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_134_e_iiA&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2022-03-24
-Paragraph 130
-Subparagraph f
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_130_f_i&doctype=Standard
-URIDate 2022-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration