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CASH AND CASH EQUIVALENTS - Schedule of Cash, Cash Equivalents and Short Term Investments (Details) - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Disclosure of financial assets [line items]        
Cash on hand R 131.3 R 113.2    
Access deposits and income funds 2,328.7 2,401.7    
Restricted cash 11.4 10.7    
Cash and cash equivalents 2,471.4 2,525.6 R 2,180.0 R 1,715.1
Interest earned on cash and cash equivalents 190.2 R 111.8 R 108.7  
Environmental rehabilitation        
Disclosure of financial assets [line items]        
Restricted cash 5.2      
Various utilities        
Disclosure of financial assets [line items]        
Restricted cash R 5.1      
Top of range        
Disclosure of financial assets [line items]        
Effective annual yields 9.49%      
Bottom of range        
Disclosure of financial assets [line items]        
Effective annual yields 8.80%