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The amount of non-current provision for decommissioning, restoration and rehabilitation costs. [Refer: Provision for decommissioning, restoration and rehabilitation costs]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2019-01-01
-Section D Examples: disclosures
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_D_TI
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2019-01-01
-Paragraph 87
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_87&doctype=Standard
-URIDate 2019-03-27

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Balance Type:	credit
Period Type:	instant

The amount of provisions other than provisions for employee benefits. [Refer: Provisions]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2019-01-01
-Paragraph 84
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_84_a&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 78
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard
-URIDate 2019-03-27

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Period Type:	instant

The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2019-01-01
-Paragraph 73
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&anchor=para_73_c&doctype=Standard
-URIDate 2019-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:durationItemType
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The amount recognised as of the acquisition date for environmental rehabilitation liabilities assumed in a business combination.

No definition available.

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Period Type:	instant

Amount of charge to profit or loss during the period which is attributable to environmental rehabilitation without the effect of the change in the right of recovery receivable/(payable).

No definition available.

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Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of discount rate used to calculate the provision.

No definition available.

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Namespace Prefix:	sbgl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The rate of inflation used to determine the provision for environmental rehabilitation obligation.

No definition available.

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Namespace Prefix:	sbgl_
Data Type:	num:percentItemType
Balance Type:	na
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The reduction in the environmental rehabilitation obligation due to payments or capitalisation of operating expenditures.

No definition available.

Name:	sbgl_EnvironmentalRehabilitationObligationPaymentsOrCapitalisedExpenditures
Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The increase (decrease) in environmental rehabilitation obligation resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity.

No definition available.

Name:	sbgl_ForeignCurrencyTranslationAdjustmentEnvironmentalRehabilitationObligation
Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of interest expense related to change in the present value of the provision for the environmental rehabilitation obligation.

No definition available.

Name:	sbgl_InterestExpensesOnEnvironmentRehabilitationObligation
Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of the long-term provision for rehabilitation costs.

No definition available.

Name:	sbgl_LongtermProvisionForRehabilitationCosts
Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

No definition available.

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Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Increase (decrease) to rehabilitation obligation due to changes in estimates, which are defined as changes in reserves and corresponding changes in life of mine, changes in discount rates, and changes in laws and regulations governing environmental matters.

No definition available.

Name:	sbgl_RehabilitationObligationChangesInEstimates
Namespace Prefix:	sbgl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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