Leases Disclosure of lease payments (Details) - ZAR (R) R in Millions |
12 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | R 465 | R 319 |
| Principal and interest payments made for lease liabilities | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | 465 | 319 |
| Short-term lease payments | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | 406 | 310 |
| Lease payments of low value assets | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | 181 | 49 |
| Variable lease payments | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | 3,564 | 2,632 |
| Total cash outflows for leases | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | 4,616 | 3,310 |
| Phase 1 Power Purchase Agreements | ||
| Disclosure of lease payments [Line Items] | ||
| Cash outflow for leases | R 77 | R 78 |