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Deferred tax - Calculated tax losses carried forward (Details) - ZAR (R)
R in Millions
Jun. 30, 2025
Jun. 30, 2024
Disclosure of temporary difference, unused tax losses and unused tax credits    
Calculated tax losses carried forward that have not been recognised R 120,332 R 117,329
One to five years    
Disclosure of temporary difference, unused tax losses and unused tax credits    
Calculated tax losses carried forward that have not been recognised 575  
More than five years    
Disclosure of temporary difference, unused tax losses and unused tax credits    
Calculated tax losses carried forward that have not been recognised 8,066 1,395
Indefinite Life    
Disclosure of temporary difference, unused tax losses and unused tax credits    
Calculated tax losses carried forward that have not been recognised R 111,691 R 115,934