Other receivables and other payables - Metals borrowing liability (Details) - ZAR (R) R in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about business combination [line items] | |||
| Balance at the beginning of the year | R 855 | R 0 | |
| Balance at end of the year | 1,667 | 855 | R 0 |
| Reldan Group | |||
| Disclosure of detailed information about business combination [line items] | |||
| Balance at the beginning of the year | 855 | 0 | 0 |
| Initial recognition on acquisition of subsidiary | 0 | 956 | 0 |
| Cash advances received | 7,985 | 4,337 | 0 |
| Non-cash advances received | 1,222 | 0 | 0 |
| Settlements (cash) | (1,129) | 0 | 0 |
| Settlements through delivery of metals (non-cash) | (7,645) | (4,308) | 0 |
| Loss/(gain) on commodity price movements | 534 | (136) | 0 |
| Foreign currency translation reserve | (155) | 6 | 0 |
| Balance at end of the year | R 1,667 | R 855 | R 0 |