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v3.25.2

Segment information - Reporting segments (Details) | 12 Months Ended
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Jun. 30, 2025 item category segment
Disclosure of operating segments |
Number of distinct businesses | item | 2
Number of reportable segments | 6
Chemicals Business |
Disclosure of operating segments |
Number of reportable segments | 3
Number of product categories | category | 2

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of Reportable Segments + References No definition available. + Details
Name: | ssl_IfrsNumberOfReportableSegments
Namespace Prefix: | ssl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of distinct businesses in group's operating model . + References No definition available. + Details
Name: | ssl_NumberOfDistinctBusinessesInOperatingModel
Namespace Prefix: | ssl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of product categories + References No definition available. + Details
Name: | ssl_NumberOfProductCategories
Namespace Prefix: | ssl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_SegmentsAxis=ssl_ChemicalsBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |