v3.26.3
Financial Risk Management - Schedule of Financial Assets and Liabilities (Details) - ZAR (R)
R in Millions
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure Of Financial Assets And Liabilities [Line Items]      
Total assets R 125,990 R 76,879 R 59,976
Borrowings | Financial liabilities at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 9,476 1,953  
Other non-current liabilities | Financial liabilities at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 413 272  
Trade and other payables | Financial liabilities at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 6,109 4,372  
Contingent consideration liability | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 2,120 1,457  
Streaming contract liability | Financial liabilities at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 5,063    
Other non-current assets | Debt instruments at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 25 1  
Other non-current assets | Equity instruments designated at fair value through OCI      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 193 107  
Other non-current assets | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 29 45  
Trade and other receivables | Debt instruments at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 3,180 2,647  
Trade and other receivables | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 735 86  
Cash and cash equivalents | Debt instruments at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 8,624 13,101  
Restricted Cash and Investments | Debt instruments at amortised cost      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 5,298 4,849  
Restricted Cash and Investments | Equity instruments designated at fair value through OCI      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 449 384  
Restricted Cash and Investments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 1,963 1,828  
Not designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 41 39  
Not designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 433 109  
Not designated as hedging instrument | Streaming contract liability | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 672    
Not designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 123 27  
Not designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 83 264  
Not designated as hedging instrument | US$ silver contracts | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 123 3  
Not designated as hedging instrument | Foreign exchange hedging contracts | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets   24  
Not designated as hedging instrument | Foreign exchange hedging contracts | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 83 264  
US$ silver contracts | Not designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 41 39  
US$ silver contracts | Not designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 433 109  
Cash flow hedges | Designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 1,034 2,649  
Cash flow hedges | Designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 3,023 4,950  
Cash flow hedges | Designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 1,448 209  
Cash flow hedges | Designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 737 68  
Cash flow hedges | Rand Gold Forward Hedging Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 137 675  
Cash flow hedges | Rand Gold Forward Hedging Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 805 3,604  
Cash flow hedges | Rand Gold Forward Hedging Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 1 14  
Cash flow hedges | Rand Gold Forward Hedging Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 3 16  
Cash flow hedges | US$ Gold Forward Hedging Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 22 166  
Cash flow hedges | US$ Gold Forward Hedging Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 265 550  
Cash flow hedges | US$ Gold Forward Hedging Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets   3  
Cash flow hedges | US$ Gold Forward Hedging Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets   2  
Cash flow hedges | Rand Gold Collars Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 587 1,492  
Cash flow hedges | Rand Gold Collars Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 1,499 590  
Cash flow hedges | Rand Gold Collars Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 1,305 164  
Cash flow hedges | Rand Gold Collars Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 609 43  
Cash flow hedges | US Gold Collars Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 288 316  
Cash flow hedges | US Gold Collars Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial liabilities at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial liabilities 454 206  
Cash flow hedges | US Gold Collars Contracts | Designated as hedging instrument | Non-current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets 142 28  
Cash flow hedges | US Gold Collars Contracts | Designated as hedging instrument | Current derivative financial instruments | Financial assets at fair value through profit or loss      
Disclosure Of Financial Assets And Liabilities [Line Items]      
Financial assets R 125 R 7