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The amount receivable by the entity that it does not separately disclose in the same statement or note.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Note Effective 2027-01-01
-Name IFRS
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-IssueDate 2025-01-01
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Data Type:	xbrli:monetaryItemType
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The value of significant unobservable input used in the measurement of the fair value of assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2025-01-01
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The value of significant unobservable input used in the measurement of the fair value of liabilities.

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Amounts recognised in remeasurement items affecting operating income, other receivables

No definition available.

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Data Type:	xbrli:monetaryItemType
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The amount of embedded derivatives settled during the period.

No definition available.

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Maximum borrowing capacity on the debt instrument.

No definition available.

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This item represents embedded derivative.

No definition available.

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Increase (decrease) in embedded derivative liabilities (assets) through realised fair value loss (gain) recognised in other operating expenses and income

No definition available.

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Increase (decrease) in embedded derivative liabilities (assets) through unrealised fair value loss (gain) recognised in other operating expenses and income

No definition available.

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Increase (decrease) in other receivables through translation gains (losses) recognised in other operating expenses and income

No definition available.

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The amount of increase (decrease) in the profit or loss due to an decrease in a significant input variable to reflect reasonably possible alternative assumptions.

No definition available.

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The amount of increase (decrease) in the profit or loss due to an increase in a significant input variable to reflect reasonably possible alternative assumptions.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Other receivables, fair value resulting from change in inputs

No definition available.

Name:	ssl_OtherReceivablesFairValueResultingFromChangeInInputs
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Data Type:	xbrli:monetaryItemType
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The reasonably possible percentage of decrease in the significant input variable used to determine fair value.

No definition available.

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Data Type:	dtr-types:percentItemType
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The reasonably possible percentage of increase in the significant input variable used to determine fair value.

No definition available.

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Data Type:	dtr-types:percentItemType
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Proceeds on disposals of equity accounted investments, other receivables

No definition available.

Name:	ssl_ProceedsOnDisposalsOfEquityAccountedInvestmentsOtherReceivables
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Data Type:	xbrli:monetaryItemType
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The reasonably possibly decrease in the price or rate assumption used to determine fair value.

No definition available.

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Namespace Prefix:	ssl_
Data Type:	xbrli:decimalItemType
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Period Type:	instant

The reasonably possibly increase in the price or rate assumption used to determine fair value.

No definition available.

Name:	ssl_ReasonablyPossibleIncreaseInFairValuePriceOrRateAssumption
Namespace Prefix:	ssl_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

The amount of translation of foreign operations related to embedded derivative.

No definition available.

Name:	ssl_TranslationOfForeignOperationsEmbeddedDerivative
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ssl_ContingentConsiderationFromDisposalOfAssetsMember
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Data Type:	na
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Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
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Data Type:	na
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Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
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Data Type:	na
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Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ssl_OxygenSupplyContractEmbeddedDerivativeAssetsAndLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ssl_FairValueInputForeignExchangeRateMember
Namespace Prefix:
Data Type:	na
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ssl_FairValueInputForeignExchangeCurveOneMember
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Data Type:	na
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Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ssl_ConvertibleBondEmbeddedDerivativeLiabilityMember
Namespace Prefix:
Data Type:	na
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ssl_ConversionPriceMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ssl_SpotSharePriceMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ssl_ObservableBondMarketPriceMeasurementInputMember
Namespace Prefix:
Data Type:	na
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Name:	ssl_SignificantInputsUsedInFairValueMeasurementAxis=ifrs-full_CreditSpreadMeasurementInputMember
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