v3.26.3
Cost of Sales - Narrative (Details)
oz in Millions, R in Millions
 12 Months Ended
Jun. 30, 2026
ZAR (R)
Dec. 31, 2025
ZAR (R)
Jun. 30, 2026
ZAR (R)
Jun. 30, 2025
ZAR (R)
Jun. 30, 2024
ZAR (R)
oz
Disclosure Of Cost Of Sales [Line Items]          
Change in production costs     R 5,300 R 4,200  
Percentage production cost increase     12.30% 10.70%  
Change in inventory     R (668) R 50 R (487)
Stripping activities     1,171 730 892
Rehabilitation spend     110 82 92
Impairment/(reversal of impairment) of assets (f)     (2,779) 0 2,793
CSA          
Disclosure Of Cost Of Sales [Line Items]          
Change in production costs     1,600    
Target North          
Disclosure Of Cost Of Sales [Line Items]          
Impairment/(reversal of impairment) of assets (f)         R 2,800
Total Mineral resource estimation before exploration drilling program | oz         56.4
Total Indicated Mineral resource estimation before exploration drilling program | oz         22.0
Total Inferred Mineral resource estimation before exploration drilling program | oz         34.4
Total Inferred mineral resource estimation after drilling progam | oz         13.8
Target North | Resource Base [Member]          
Disclosure Of Cost Of Sales [Line Items]          
Recoverable amount         R 888
Hidden Valley          
Disclosure Of Cost Of Sales [Line Items]          
Increase (Decrease) in depreciation       (230)  
Mine Waste Solutions          
Disclosure Of Cost Of Sales [Line Items]          
Increase (Decrease) in depreciation       (102)  
Mponeng          
Disclosure Of Cost Of Sales [Line Items]          
Increase (Decrease) in depreciation       149  
MAC Copper          
Disclosure Of Cost Of Sales [Line Items]          
Increase (Decrease) in depreciation     (439)    
Depreciation of mineral right     866    
Tshepong North          
Disclosure Of Cost Of Sales [Line Items]          
Impairment/(reversal of impairment) of assets (f) R 635 R 941      
Recoverable amount 11,004 3,600 11,004    
Cumulative Impairment 2,295 R 2,300      
Tshepong South          
Disclosure Of Cost Of Sales [Line Items]          
Impairment/(reversal of impairment) of assets (f) 651        
Recoverable amount 4,314   4,314 R 3,300  
Cumulative Impairment 2,987        
Kusasalethu          
Disclosure Of Cost Of Sales [Line Items]          
Impairment/(reversal of impairment) of assets (f) 266        
Recoverable amount 7,416   7,416    
Cumulative Impairment 2,092        
Doornkop          
Disclosure Of Cost Of Sales [Line Items]          
Impairment/(reversal of impairment) of assets (f) 286        
Recoverable amount 8,249   R 8,249    
Cumulative Impairment R 617