Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 50
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of non-current borrowings with exposure to changes in interest rate.

No definition available.

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

The amount of undrawn borrowing facilities that are committed to future operating activities and capital commitments.

No definition available.

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

The amount of undrawn borrowing facilities that are available, but not yet committed, to cover future operating activities and capital commitments.

No definition available.

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

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Namespace Prefix:
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Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix:
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Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix:
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Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsMember
Namespace Prefix:
Data Type:	na
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Namespace Prefix:
Data Type:	na
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Namespace Prefix:
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Name:	ifrs-full_TypesOfInterestRatesAxis=sbsw_LondonInterbankOfferedRateMember
Namespace Prefix:
Data Type:	na
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