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v3.23.2

Long-term debt - Interest-bearing status (Details) - ZAR (R) R in Millions | Jun. 30, 2023 | Jun. 30, 2022
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Interest-bearing status |  |
Interest-bearing debt | R 124,068 | R 104,834

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- Definition Interest Bearing Status [Abstract] + References No definition available. + Details
Name: | ssl_InterestBearingStatusAbstract
Namespace Prefix: | ssl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The portion of long-term borrowings bearing interest. + References No definition available. + Details
Name: | ssl_LongtermBorrowingsCurrentAndNoncurrentInterestBearing
Namespace Prefix: | ssl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant