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

The amount of provision for legal proceedings. [Refer: Other provisions]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2020-01-01
-Section Example 10 A court case
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_C_ex10_TI
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2020-01-01
-Paragraph 87
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_87&doctype=Standard
-URIDate 2020-01-01

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

The amount of provision for costs related to decommissioning, restoration and rehabilitation. [Refer: Other provisions]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2020-01-01
-Section D Examples: disclosures
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_D_TI
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2020-01-01
-Paragraph 87
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_87&doctype=Standard
-URIDate 2020-01-01

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

The amount of alternative assessment of the estimated financial effect of contingent liabilities.

No definition available.

Name:	ssl_AlternativeAssessmentOfEstimatedFinancialEffectOfContingentLiabilities
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of alternative assessment of the estimated financial effect of contingent liabilities based on expert report.

No definition available.

Name:	ssl_AlternativeAssessmentOfEstimatedFinancialEffectOfContingentLiabilitiesBasedOnExpertReport
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Damage value sought per member of union

No definition available.

Name:	ssl_DamageValueSoughtPerMemberOfUnion
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The monetary amount of the award the plaintiff seeks in the legal matter, without interest.

No definition available.

Name:	ssl_LossContingencyDamagesValueSought
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The monetary amount of the award the plaintiff seeks in the legal matter, without interest based on expert report.

No definition available.

Name:	ssl_LossContingencyDamagesValueSoughtBasedOnExpertReport
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the number of litigation cases.

No definition available.

Name:	ssl_LossContingencyNumberOfCases
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of plaintiffs that have filed claims pertaining to a loss contingency.

No definition available.

Name:	ssl_LossContingencyPlaintiffsNumber
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of customers that initiated judicial review of decisions

No definition available.

Name:	ssl_NumberOfCustomersThatInitiatedJudicialReviewOfDecisions
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of plaintiffs that are current employees

No definition available.

Name:	ssl_NumberOfPlaintiffsThatAreCurrentEmployees
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of plaintiffs that are former employees

No definition available.

Name:	ssl_NumberOfPlaintiffsThatAreFormerEmployees
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of plaintiffs that passed away

No definition available.

Name:	ssl_NumberOfPlaintiffsThatPassedAway
Namespace Prefix:	ssl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the period of back pay to calculate retrospective payment of remuneration.

No definition available.

Name:	ssl_PeriodOfBackPayToCalculateRetrospectivePaymentOfRemuneration
Namespace Prefix:	ssl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_LegalProceedingsClaimedCompensationForLungDiseasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_LegalProceedingsFluorDisputeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_DisputeOfDismissalDuringUnprotectedStrikeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ssl_SasolMiningPtyLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_DisputeBySolidarityTradeUnionRelatingToSasolKhanyisaShareSchemeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_LegalReviewOfSasolGasNationalEnergyRegulatorOfSouthAfricaMaximumPriceDecisionAndGasTransmissionTariffApplicationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ssl_SecuritiesClassActionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: