Borrowings and derivative financial instrument - Capital management (Details) R in Millions	12 Months Ended
Dec. 31, 2024 ZAR (R)	Dec. 31, 2023 ZAR (R)	Dec. 31, 2022 ZAR (R)
Disclosure of detailed information about borrowings [abstract]
Adjusted borrowings	R 39,426	R 37,437	R 20,188
Adjusted cash and cash equivalents	16,002	25,519	26,038
Net debt/(cash)	23,424	11,918	(5,850)
Adjusted EBITDA	R 13,088	R 20,556	R 41,111
Net debt/(cash) to adjusted EBITDA (ratio)	1.79	0.58	(0.14)

The adjusted EBITDA (earnings before interest, taxes, depreciation and amortisation) is based on the formula included in the facility agreements for compliance with the debt covenant formula. Adjusted EBITDA may not be comparable to similarly titled measures of other companies. Adjusted EBITDA is not a measure of performance under IFRS and should be considered in addition to, and not as a substitute for, other measures of financial performance and liquidity.

No definition available.

Name:	sbsw_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortisation
Namespace Prefix:	sbsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration