The average price of a hedging instrument. [Refer: Hedging instruments [domain]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 23B
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_23B_b&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_AveragePriceOfHedgingInstrument
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual Delivery of Commodity

+ References

No definition available.

+ Details

Name:	sbsw_ContractualDeliveryOfCommodity
Namespace Prefix:	sbsw_
Data Type:	dtr-types1:weightItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual Delivery of Commodity, Monthly

+ References

No definition available.

+ Details

Name:	sbsw_ContractualDeliveryOfCommodityMonthly
Namespace Prefix:	sbsw_
Data Type:	dtr-types1:weightItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of deferred income received during the period.

+ References

No definition available.

+ Details

Name:	sbsw_DeferredIncomeReceived
Namespace Prefix:	sbsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	sbsw_DisclosureOfContractLiabilitiesLineItems
Namespace Prefix:	sbsw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The percent of production that is covered by the streaming agreement.

+ References

No definition available.

+ Details

Name:	sbsw_PercentOfProductionCoveredByStreamingAgreement
Namespace Prefix:	sbsw_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Stream Arrangement, Contract Commitment

+ References

No definition available.

+ Details

Name:	sbsw_StreamArrangementContractCommitment
Namespace Prefix:	sbsw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The additional amounts to be received monthly under the streaming arrangement, as a percentage based on the value of deliveries.

+ References

No definition available.

+ Details

Name:	sbsw_StreamingArrangementAdditionalMonthlyAmountsReceivableAsPercentage
Namespace Prefix:	sbsw_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_CounterpartiesAxis=sbsw_WheatonPreciousMetalsInternationalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CounterpartiesAxis=sbsw_FrancoNevadaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ProductsAndServicesAxis=sbsw_PlatinumMiningActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ProductsAndServicesAxis=sbsw_GoldMiningActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ProductsAndServicesAxis=sbsw_ChromeMiningActivitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Deferred revenue - Narrative (Details) R in Millions, $ in Millions						1 Months Ended		12 Months Ended
	Feb. 28, 2025 ZAR (R)	Feb. 28, 2025 USD ($)	Dec. 01, 2024 ZAR (R) t	Dec. 01, 2024 USD ($) t	Aug. 21, 2024 ZAR (R) R / kg kg oz	Jul. 31, 2018 ZAR (R)	Jul. 31, 2018 USD ($)	Dec. 31, 2025 ZAR (R)	Dec. 31, 2024 ZAR (R)	Dec. 31, 2023 ZAR (R)	Dec. 19, 2024 USD ($)
Disclosure Of Contract Liabilities [Line Items]
Deferred revenue advance received \| R								R 10,745	R 3,307	R 935
Wheaton Precious Metals International
Disclosure Of Contract Liabilities [Line Items]
Deferred revenue advance received						R 6,555	$ 500
Additional monthly amounts receivable, as a percent								18.00%
Franco-Nevada stream
Disclosure Of Contract Liabilities [Line Items]
Deferred revenue advance received	R 9,215	$ 500
Additional monthly amounts receivable, as a percent								5.00%
Stream arrangement, contract commitment \| $											$ 500
Platinum \| Wheaton Precious Metals International
Disclosure Of Contract Liabilities [Line Items]
Percent of production covered by agreement								4.50%
Platinum \| Franco-Nevada stream
Disclosure Of Contract Liabilities [Line Items]
Percent of production covered by agreement								1.00%
Additional monthly amounts receivable, as a percent								5.00%
Gold
Disclosure Of Contract Liabilities [Line Items]
Deferred revenue advance received \| R					R 1,793
Commodity delivery (in kilograms/tonnes) \| kg					1,497
Monthly commodity delivery (in ounces) \| oz					1,851
Gold \| Wheaton Precious Metals International
Disclosure Of Contract Liabilities [Line Items]
Percent of production covered by agreement								100.00%
Gold \| Franco-Nevada stream
Disclosure Of Contract Liabilities [Line Items]
Percent of production covered by agreement								1.10%
Gold \| Minimum
Disclosure Of Contract Liabilities [Line Items]
Average price (in ZAR per kg) \| R / kg					1,350,000
Gold \| Maximum
Disclosure Of Contract Liabilities [Line Items]
Average price (in ZAR per kg) \| R / kg					1,736,000
Chrome
Disclosure Of Contract Liabilities [Line Items]
Deferred revenue advance received			R 905	$ 50
Chrome \| Minimum
Disclosure Of Contract Liabilities [Line Items]
Commodity delivery (in kilograms/tonnes) \| t			40,000	40,000
Chrome \| Maximum
Disclosure Of Contract Liabilities [Line Items]
Commodity delivery (in kilograms/tonnes) \| t			70,000	70,000