Other investments - Narrative (Details) R in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
ZAR (R)
| |
| Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items] | |
| Impact on OCI of change in stock exchange prices | R 22 |
| Currency risk | |
| Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items] | |
| Percentage point change in stock exchange prices | 1.00% |