Other Non-Current Assets - Disclosure of movement in ARM BBEE Trust Loan (Details) - ARM BBEE Trust - ZAR (R) R in Millions	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2021
Disclosure of financial assets [line items]
Non-current financial assets at fair value through profit or loss	R 68
Settlement of loan			R 264
Refinanced loan advances			R 264
Repayments Of Loans	R 28	R 42

The amount of non-current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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-IssueDate 2025-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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-IssueDate 2025-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_44_a&doctype=Standard
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Balance Type:	debit
Period Type:	instant