The weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 23
-IssueDate 2024-01-01
-Paragraph 26
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=23&code=ifrs-tx-2024-en-r&anchor=para_26_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The depreciation rate used for property, plant and equipment. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2024-01-01
-Paragraph 73
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_c&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DepreciationRatePropertyPlantAndEquipment
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- 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

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

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ssl_RetailConvenienceCentresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ssl_ManufacturingFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OfficeEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_VehiclesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Property, plant and equipment - Depreciation ranges (Details)	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Property, plant and equipment
Capitalisation rate	7.40%	7.30%
Buildings and improvements \| Minimum
Property, plant and equipment
Depreciation rate for property, plant and equipment	1.00%
Buildings and improvements \| Maximum
Property, plant and equipment
Depreciation rate for property, plant and equipment	17.00%
Retail convenience centres \| Minimum
Property, plant and equipment
Depreciation rate for property, plant and equipment	3.00%
Retail convenience centres \| Maximum
Property, plant and equipment
Depreciation rate for property, plant and equipment	5.00%
Plant \| Minimum
Property, plant and equipment
Depreciation rate for property, plant and equipment	2.00%
Plant \| Maximum
Property, plant and equipment
Depreciation rate for property, plant and equipment	50.00%
Equipment \| Minimum
Property, plant and equipment
Depreciation rate for property, plant and equipment	3.00%
Equipment \| Maximum
Property, plant and equipment
Depreciation rate for property, plant and equipment	91.00%
Vehicles \| Minimum
Property, plant and equipment
Depreciation rate for property, plant and equipment	5.00%
Vehicles \| Maximum
Property, plant and equipment
Depreciation rate for property, plant and equipment	33.00%