Other receivables and other payables - Marikana dividend obligation (Details) - ZAR (R) R in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| South Africa | Eastern Platinum Limited | |||
| Disclosure of nature and extent of risks arising from financial instruments [line items] | |||
| Real discount rate — South Africa | 11.64% | ||
| South Africa | Western Platinum Limited | |||
| Disclosure of nature and extent of risks arising from financial instruments [line items] | |||
| Real discount rate — South Africa | 11.71% | ||
| Marikana | |||
| Movement In Dividend Obligation [Abstract] | |||
| Balance at the beginning of the year | R 730 | R 1,626 | R 2,129 |
| Interest — unwinding of amortised cost | 85 | 188 | 236 |
| Gain on revised estimated cash flows | (5) | (1,046) | (548) |
| Payments made | 0 | (38) | (191) |
| Balance at end of the year | R 810 | R 730 | R 1,626 |