v3.26.3
PROPERTY, PLANT AND EQUIPMENT - Property, Plant and Equipment (Details) - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period R 8,542.2    
Property, plant and equipment including right-of-use assets at end of period 11,918.4 R 8,542.2  
Purchase of property, plant and equipment, classified as investing activities 3,531.6 2,254.9 R 2,985.7
Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 8,522.2    
Property, plant and equipment including right-of-use assets at end of period 11,903.0 8,522.2  
Purchase of property, plant and equipment, classified as investing activities 3,516.4 2,149.6  
Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 20.0    
Property, plant and equipment including right-of-use assets at end of period 15.4 20.0  
Mine plant facilities and equipment      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 1,935.1    
Property, plant and equipment including right-of-use assets at end of period 2,010.2 1,935.1  
Mine plant facilities and equipment | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 1,931.1    
Property, plant and equipment including right-of-use assets at end of period 2,007.1 1,931.1  
Mine plant facilities and equipment | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 4.0    
Property, plant and equipment including right-of-use assets at end of period 3.1 4.0  
Mine property and development      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 1,676.4    
Property, plant and equipment including right-of-use assets at end of period 1,601.1 1,676.4  
Mine property and development | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 1,660.4    
Property, plant and equipment including right-of-use assets at end of period 1,588.8 1,660.4  
Mine property and development | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 16.0    
Property, plant and equipment including right-of-use assets at end of period 12.3 16.0  
Solar power plant and BESS      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,757.1    
Property, plant and equipment including right-of-use assets at end of period 2,665.2 2,757.1  
Solar power plant and BESS | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,757.1    
Property, plant and equipment including right-of-use assets at end of period 2,665.2 2,757.1  
Solar power plant and BESS | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 0.0    
Property, plant and equipment including right-of-use assets at end of period 0.0 0.0  
Exploration assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 11.9    
Property, plant and equipment including right-of-use assets at end of period 12.7 11.9  
Exploration assets | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 11.9    
Property, plant and equipment including right-of-use assets at end of period 12.7 11.9  
Exploration assets | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 0.0    
Property, plant and equipment including right-of-use assets at end of period 0.0 0.0  
Capital work in progress      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,161.7    
Property, plant and equipment including right-of-use assets at end of period 5,629.2 2,161.7  
Capital work in progress | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,161.7    
Property, plant and equipment including right-of-use assets at end of period 5,629.2 2,161.7  
Capital work in progress | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 0.0    
Property, plant and equipment including right-of-use assets at end of period 0.0 0.0  
FWGR RTSF and DP2 construction      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,161.7    
Property, plant and equipment including right-of-use assets at end of period 4,812.9 2,161.7  
Ergo Daggafontein      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at end of period 816.3    
Cost      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 11,489.9 9,289.4  
Lease derecognitions (10.6) (1.2)  
Disposals and scrapping (9.0) (8.5)  
Change in estimate of environmental rehabilitation provision with a related asset 114.9 7.4  
Transfers between classes of property, plant and equipment 0.0 0.0  
Property, plant and equipment including right-of-use assets at end of period 15,324.2 11,489.9 9,289.4
Cost | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 3,736.9 2,200.0  
Cost | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 2.1 2.8  
Cost | Mine plant facilities and equipment      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 3,317.7 3,106.6  
Lease derecognitions (10.6) (1.2)  
Disposals and scrapping (3.0) (1.5)  
Change in estimate of environmental rehabilitation provision with a related asset 113.0 5.6  
Transfers between classes of property, plant and equipment (109.8) 30.7  
Property, plant and equipment including right-of-use assets at end of period 3,559.7 3,317.7 3,106.6
Cost | Mine plant facilities and equipment | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 251.4 177.2  
Cost | Mine plant facilities and equipment | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 1.0 0.3  
Cost | Mine property and development      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 3,130.1 2,944.0  
Lease derecognitions 0.0 0.0  
Disposals and scrapping (6.0) (5.1)  
Change in estimate of environmental rehabilitation provision with a related asset (1.5) 1.8  
Transfers between classes of property, plant and equipment (1.4) 11.4  
Property, plant and equipment including right-of-use assets at end of period 3,222.9 3,130.1 2,944.0
Cost | Mine property and development | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 100.6 175.5  
Cost | Mine property and development | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 1.1 2.5  
Cost | Solar power plant and BESS      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,858.8 0.0  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 0.0  
Change in estimate of environmental rehabilitation provision with a related asset 3.4 0.0  
Transfers between classes of property, plant and equipment 0.0 2,768.7  
Property, plant and equipment including right-of-use assets at end of period 2,890.0 2,858.8 0.0
Cost | Solar power plant and BESS | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 27.8 90.1  
Cost | Solar power plant and BESS | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 0.0 0.0  
Cost | Exploration assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 21.6 19.2  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 (1.9)  
Change in estimate of environmental rehabilitation provision with a related asset 0.0 0.0  
Transfers between classes of property, plant and equipment 0.0 1.3  
Property, plant and equipment including right-of-use assets at end of period 22.4 21.6 19.2
Cost | Exploration assets | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 0.8 3.0  
Cost | Exploration assets | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 0.0 0.0  
Cost | Capital work in progress      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 2,161.7 3,219.6  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 0.0  
Change in estimate of environmental rehabilitation provision with a related asset 0.0 0.0  
Transfers between classes of property, plant and equipment 111.2 (2,812.1)  
Property, plant and equipment including right-of-use assets at end of period 5,629.2 2,161.7 3,219.6
Cost | Capital work in progress | Property, plant and equipment owned      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 3,356.3 1,754.2  
Cost | Capital work in progress | Right of use assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Additions 0.0 0.0  
Accumulated depreciation and impairment      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period (2,947.7) (2,494.5)  
Lease derecognitions 10.6 1.2  
Disposals and scrapping 8.5 4.8  
Depreciation (477.2) (459.2)  
Property, plant and equipment including right-of-use assets at end of period (3,405.8) (2,947.7) (2,494.5)
Accumulated depreciation and impairment | Mine plant facilities and equipment      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period (1,382.6) (1,206.6)  
Lease derecognitions 10.6 1.2  
Disposals and scrapping 2.8 1.5  
Depreciation (180.3) (178.7)  
Property, plant and equipment including right-of-use assets at end of period (1,549.5) (1,382.6) (1,206.6)
Accumulated depreciation and impairment | Mine property and development      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period (1,453.7) (1,278.2)  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 5.7 3.3  
Depreciation (173.8) (178.8)  
Property, plant and equipment including right-of-use assets at end of period (1,621.8) (1,453.7) (1,278.2)
Accumulated depreciation and impairment | Solar power plant and BESS      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period (101.7) 0.0  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 0.0  
Depreciation (123.1) (101.7)  
Property, plant and equipment including right-of-use assets at end of period (224.8) (101.7) 0.0
Accumulated depreciation and impairment | Exploration assets      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period (9.7) (9.7)  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 0.0  
Depreciation 0.0 0.0  
Property, plant and equipment including right-of-use assets at end of period (9.7) (9.7) (9.7)
Accumulated depreciation and impairment | Capital work in progress      
Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [line items]      
Property, plant and equipment including right-of-use assets at beginning of period 0.0 0.0  
Lease derecognitions 0.0 0.0  
Disposals and scrapping 0.0 0.0  
Depreciation 0.0 0.0  
Property, plant and equipment including right-of-use assets at end of period R 0.0 R 0.0 R 0.0