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INVESTMENTS IN REHABILITATION OBLIGATION FUNDS - Narrative (Details) - ZAR (R) R in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disclosure of detailed information about financial instruments [line items]
Changes in methods and assumptions used in preparing sensitivity analysis	A change of 100 basis points (bp) in interest rates at the reporting date would have increased/(decreased) equity and profit/(loss) by the amounts shown below. This analysis assumes that all other variables, in particular the balance of the funds, remain constant. The analysis excludes income tax.
Percentage of reasonably possible chgange, interest rate risk	1.00%
Guardrisk guarantees in issue [member]
Disclosure of detailed information about financial instruments [line items]
Estimated financial effect of contingent liabilities	R 427.3	R 427.3

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- Definition

The reasonably possible percentage of the increase (decrease) market risk sensitivity.

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- Definition

The description of changes in the methods and assumptions used in preparing a sensitivity analysis for the types of market risk to which the entity is exposed. [Refer: Market risk [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of the estimated financial effect of contingent liabilities. [Refer: Contingent liabilities [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2019-01-01
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