Environmental rehabilitation obligation and other provisions - Narrative (Details) R in Millions	Dec. 31, 2024 ZAR (R)
Provision for decommissioning, restoration and rehabilitation costs [abstract]
Provision for post closure aspects	R 3,536

The amount provided for Post Closure Aspects of water management liability during the period.

No definition available.

Name:	sbsw_ProvisionForPostClosureAspects
Namespace Prefix:	sbsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant