v3.25.3
Earnings/(Loss) Per Share - Disclosure of Basic Earnings/(Loss) Per Share (Details) - ZAR (R)
R / shares in Units, R in Millions
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Earnings per share [abstract]      
Ordinary shares in issue (in shares) 634,768,000 632,634,000 618,072,000
Adjustment for weighted number of ordinary shares in issue (in shares) (468,000) (7,930,000) (428,000)
Weighted number of ordinary shares in issue (in shares) 634,300,000 624,704,000 617,644,000
Treasury shares (in shares) (12,451,000) (5,267,000) (47,000)
Basic weighted average number of ordinary shares in issue (in shares) 621,849,000 619,437,000 617,597,000
Owners of the parent R 14,384 R 8,587 R 4,820
Total basic earnings/(loss) per share (in rand per share) R 23.13 R 13.86 R 7.80
Disclosure of depositary receipts [line items]      
Treasury shares (in shares) (12,451,000) (5,267,000) (47,000)
Harmony Gold ESOP Trust | Share trust controlled by entity | Ordinary shares      
Disclosure of depositary receipts [line items]      
Number of shares in entity held by entity or by its subsidiaries or associates (in shares) 12,168,183 12,651,525  
Katleho ya Moruo Employee Share Ownership Plan      
Earnings per share [abstract]      
Treasury shares (in shares) 12,404,035 5,219,618  
Disclosure of depositary receipts [line items]      
Treasury shares (in shares) 12,404,035 5,219,618