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INVESTMENTS IN REHABILITATION OBLIGATION FUNDS - Market Risk (Details) - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Percentage of reasonably possible change, interest rate risk 1.00%  
Interest rate risk [member] | Investments In Obligation Fund [Member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
100bp increase R 5.6 R 5.4
100bp decrease R (5.6) R (5.4)