v3.26.3
Provision for Environmental Rehabilitation - Disclosure of Future Net Undiscounted Obligation (Details) - ZAR (R)
R in Millions
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of financial assets [line items]      
Ultimate estimated rehabilitation cost R 10,095 R 9,055  
Amounts invested in environmental trust funds (7,320) (6,731)  
Total future net undiscounted obligation 2,792 2,339  
Total Other Provisions 252 261  
Time value of money and inflation component of rehabilitation costs      
Disclosure of financial assets [line items]      
Total Other Provisions 6,897 6,098 R 5,155
South African operations | Time value of money and inflation component of rehabilitation costs      
Disclosure of financial assets [line items]      
Total Other Provisions 4,909 4,528  
PNG operations | Time value of money and inflation component of rehabilitation costs      
Disclosure of financial assets [line items]      
Total Other Provisions 1,477 1,451  
Australia | Time value of money and inflation component of rehabilitation costs      
Disclosure of financial assets [line items]      
Total Other Provisions 511 119  
Total environmental trust funds      
Disclosure of financial assets [line items]      
Amounts invested in environmental trust funds R (7,303) R (6,716) R (6,030)