v3.26.3
INCOME TAX - Detailed components of the net deferred tax assets and liabilities (Details) - ZAR (R)
R in Millions
Jun. 30, 2026
Jun. 30, 2025
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax liabilities R (2,900.4) R (1,781.8)
Deferred tax assets 9.1 38.3
Net deferred tax liabilities (2,891.3) (1,743.5)
Deferred tax liabilities    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax liabilities (3,340.5) (2,178.2)
Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 449.2 434.7
Net deferred tax liabilities (2,891.3) (1,743.5)
Property, plant and equipment owned | Deferred tax liabilities    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax liabilities (3,173.6) (2,047.6)
Environmental rehabilitation obligation and other funds | Deferred tax liabilities    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax liabilities (160.2) (127.1)
Environmental rehabilitation obligation and other funds | Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 198.8 145.5
Other investments | Deferred tax liabilities    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax liabilities (6.7) (3.5)
Other provisions | Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 83.5 92.5
Equity settled share-based payment    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 24.1 39.1
Lease liability | Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 3.1 4.3
Estimated tax losses | Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets 8.0 16.1
Estimated unredeemed capital allowances | Deferred tax assets    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Deferred tax assets R 155.8 R 176.3