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PROVISION FOR ENVIRONMENTAL REHABILITATION - Narrative (Details) - ZAR (R)
R in Millions
Jun. 30, 2022
Jun. 30, 2021
Provision for environmental rehabilitation [abstract]    
Discount Rate, maximum 10.30% 9.00%
Discount Rate, minimum 10.20% 8.90%
Inflation rate used in calculation of net present value of rehabilitation liability 5.50% 5.20%
Undiscounted rehabilitation cost R 815.1 R 742.2