XML 333 R198.htm IDEA: XBRL DOCUMENT
v3.19.3

Financial risk management and financial instruments - Credit Risk (Details) - customer | 12 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
Credit risk |  |  |
Loss given default for secured financial assets | 35.00% |  |
Loss given default for unsecured financial assets | 45.00% |  |
Number of customers representing more than ten percent of turnover | 0 | 0 | 0
Number of customers representing more than ten percent of trade receivables | 0 | 0 | 0
Minimum |  |  |
Credit risk |  |  |
Contractual payment terms for receivables | 30 days |  |
Maximum |  |  |
Credit risk |  |  |
Contractual payment terms for receivables | 120 days |  |
South Africa |  |  |
Credit risk |  |  |
Percentage of total turnover | 50.00% | 49.00% | 48.00%
Europe |  |  |
Credit risk |  |  |
Percentage of total turnover | 22.00% | 24.00% | 22.00%
United States of America |  |  |
Credit risk |  |  |
Percentage of total turnover | 14.00% | 13.00% | 13.00%

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

X
- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2018-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_34&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_PercentageOfEntitysRevenue
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual payment terms for receivables + References No definition available. + Details
Name: | ssl_ContractualPaymentTermsForReceivables
Namespace Prefix: | ssl_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss given default for secured financial assets + References No definition available. + Details
Name: | ssl_LossGivenDefaultForSecuredFinancialAssets
Namespace Prefix: | ssl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loss given default for unsecured financial assets + References No definition available. + Details
Name: | ssl_LossGivenDefaultForUnsecuredFinancialAssets
Namespace Prefix: | ssl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of customers representing more than ten percent of trade receivables + References No definition available. + Details
Name: | ssl_NumberOfCustomersRepresentingMoreThanTenPercentOfTradeReceivables
Namespace Prefix: | ssl_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of customers representing more than ten percent of turnover + References No definition available. + Details
Name: | ssl_NumberOfCustomersRepresentingMoreThanTenPercentOfTurnover
Namespace Prefix: | ssl_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=ifrs-full_CountryOfDomicileMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=srt_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |