v3.26.3
Share Capital - Narrative (Details) - R / shares
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Apr. 04, 2024
Disclosure of classes of share capital [line items]      
Shares issued relating to exercise of share options (in shares) 2,031,242 2,133,311  
Ordinary shares      
Disclosure of classes of share capital [line items]      
Number of shares authorised (in shares) 1,200,000,000 1,200,000,000  
Number of shares issued and fully paid (in shares) 636,798,966 634,767,724  
Convertible preference shares      
Disclosure of classes of share capital [line items]      
Number of shares authorised (in shares) 6,866,103 6,866,103  
Number of shares issued and fully paid (in shares) 6,866,103 6,866,103  
Harmony ESOP Trust | Share trust controlled by entity | Ordinary shares      
Disclosure of classes of share capital [line items]      
Number of shares in entity held by entity or by its subsidiaries or associates (in shares)     12,651,525
Harmony Gold Community Trust | Share trust controlled by entity      
Disclosure of classes of share capital [line items]      
Minimum annual preference dividend (in rand per share) R 2    
Harmony Gold Community Trust | Share trust controlled by entity | Convertible preference shares      
Disclosure of classes of share capital [line items]      
Number of shares in entity held by entity or by its subsidiaries or associates (in shares) 6,866,103 6,866,103