v3.25.3
Contingent consideration narative (Details)
R in Millions, $ in Millions
12 Months Ended
Jun. 30, 2025
ZAR (R)
$ / oz
oz
Jun. 30, 2024
ZAR (R)
Jun. 30, 2023
ZAR (R)
Oct. 06, 2022
USD ($)
Disclosure of contingent consideration liabilities [line items]        
Contingent consideration Liabilities Recognised R 1,457 R 965 R 589  
Remeasurement of Mponeng contingent consideration 427 291    
Remeasurement of Eva Copper contingent consideration 403 R 193    
Remeasurement of Eva Copper contingent consideration due to declaration of additional mineral resources R 264      
Mponeng        
Disclosure of contingent consideration liabilities [line items]        
Discount rate applied to cash flow projections 10.80% 10.50%    
Contingent consideration Liabilities Recognised R 676 R 587    
Eva Copper operations and related assets        
Disclosure of contingent consideration liabilities [line items]        
Discount rate applied to cash flow projections 11.40% 11.40%    
Contingent consideration Liabilities Recognised R 781 R 378    
Eva Copper operations and related assets | Cap        
Disclosure of contingent consideration liabilities [line items]        
Contingent Consideration Payable via 10% of net incremental revenue above US$3.80/Ib Cu | $       $ 30
Contingent Consideration Payable on New Copper Using US$0.03/Ib Cu | $       $ 30
Mponeng operations and related assets        
Disclosure of contingent consideration liabilities [line items]        
Contingent Consideration Payable Upon Exceeding 250 000 Ounces Per Year | $ / oz 260      
Ounces Gold Production Per Annum | oz 250,000      
Contingent Consideration Payable on Ounces From Levels Below Current Infrastructure | $ / oz 20