Share Capital - Treasury shares (Details) - shares	Jun. 30, 2025	Jun. 30, 2024	Apr. 04, 2024	Feb. 21, 2024
Lydenburg Exploration Limited \| Ordinary shares \| Total for all subsidiaries
Disclosure of classes of share capital [line items]
Number of shares in entity held by entity or by its subsidiaries or associates (in shares)	335	335
Kalgold Share Trust \| Ordinary shares \| Share trust controlled by entity
Disclosure of classes of share capital [line items]
Number of shares in entity held by entity or by its subsidiaries or associates (in shares)	47,046	47,046
Harmony ESOP Trust \| Ordinary shares \| Share trust controlled by entity
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 \| Convertible preference shares \| Share trust controlled by entity
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		2,466,103
Harmony Gold ESOP Trust \| Ordinary shares \| Share trust controlled by entity
Disclosure of classes of share capital [line items]
Number of shares in entity held by entity or by its subsidiaries or associates (in shares)	12,168,183	12,651,525