The amount that has been withdrawn from an account in excess of existing cash balances. This is considered a short-term extension of credit by the bank. [Refer: Cash and cash equivalents]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2020-01-01
-Paragraph 45
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_7&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

The cash inflow from borrowings obtained. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2020-01-01
-Paragraph 17
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_17_c&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of current borrowings. [Refer: Borrowings]

+ References

+ Details

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

- Definition

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2020-01-01
-Paragraph 50
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Definition

Available borrowing facilities and cash generated from operations.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity on the debt instrument.

+ References

No definition available.

+ Details

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

- Definition

Cash and cash equivalents, excluding restricted cash

+ References

No definition available.

+ Details

Name:	ssl_CashAndCashEquivalentsExcludingRestrictedCash
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Current borrowings and current portion of non-current borrowings, excluding leases

+ References

No definition available.

+ Details

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

- Definition

Current portion of long-term borrowings, excluding leases

+ References

No definition available.

+ Details

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

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

No definition available.

+ Details

Name:	ssl_DeferredFinanceCostNet
Namespace Prefix:	ssl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Interest accrued on borrowings

+ References

No definition available.

+ Details

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

- Definition

Non-current portion of long-term borrowings, excluding leases

+ References

No definition available.

+ Details

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

- Definition

The amount of utilised borrowing facilities

+ References

No definition available.

+ Details

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

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_RevolvingCreditFacilityRepayableNovember2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ssl_LongTermDebtsTypeAxis=ssl_GroupTreasuryFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_CommercialPapersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ssl_TypeOfVariableRateAxis=ssl_JohannesburgInterbankAverageRateJIBRMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_ZAR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_LinesOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_RevolvingCreditFacilityRepayableInJune2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ssl_LongTermDebtsTypeAxis=ssl_UnsecuredDebtsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_UsDollarBondNovember2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_UsBondsDueMarch2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_UsBondsDueSeptember2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_UsBondsDueMarch2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_UsBondsDueSeptember2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_TermLoanRepayableInJune2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ssl_LongTermDebtsTypeAxis=ssl_SpecificProjectAssetFinanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ssl_CleanFuelsProjectDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ssl_LongTermDebtsTypeAxis=ssl_OtherDebtArrangementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-term debt - Contract Amounts (Details) R in Millions, $ in Millions	1 Months Ended
	Aug. 31, 2019 ZAR (R)	Nov. 30, 2023 USD ($)	Nov. 30, 2022 USD ($)	Jun. 30, 2021 ZAR (R)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 ZAR (R)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 ZAR (R)
Long-term debt
Utilised facilities				R 102,295
Available facilities				54,651		R 10,500
Available cash excluding restricted cash				29,224
Total funds available for use				83,875
Interest accrued on borrowings				1,090
Unamortised loan costs				(439)		(627)
Total debt (including bank overdraft)				102,946
Long-term debt				97,137		147,511		R 127,350
Short-term debt				5,566
Short-term debt				60		21,888
Short-term portion				5,506		19,686
Bank overdraft				243		645		R 58
Revolving credit facility, repayable November 2024
Long-term debt
Short-term portion						R 17,000	$ 1,000
Group treasury facilities \| Commercial paper
Long-term debt
Contract amount				8,000
Utilised facilities				2,176
Available facilities				5,824
Proceeds from borrowings	R 2,176
Group treasury facilities \| Commercial paper \| 3 month Jibar \| Rand
Long-term debt
Adjustment to interest rate basis	1.30%
Group treasury facilities \| Commercial banking facilities
Long-term debt
Contract amount				8,500
Available facilities				8,500
Group treasury facilities \| Revolving credit facility, repayable November 2024
Long-term debt
Contract amount		$ 2,845	$ 3,495	48,064	$ 3,367
Utilised facilities				7,737
Available facilities				40,327
Group treasury facilities \| Revolving credit facility, repayable in June 2024
Long-term debt
Contract amount				2,141	150
Utilised facilities				2,141
Unsecured debt \| US Dollar Bond November 2022
Long-term debt
Contract amount				14,275	1,000
Utilised facilities				14,275
Unsecured debt \| US Dollar Bond March 2024
Long-term debt
Contract amount				21,413	1,500
Utilised facilities				21,413
Unsecured debt \| US Dollar Bond September 2028
Long-term debt
Contract amount				10,706	750
Utilised facilities				10,706
Unsecured debt \| US Dollar Bond March 2026
Long-term debt
Contract amount				9,279	650
Utilised facilities				9,279
Unsecured debt \| US Dollar Bond September 2031
Long-term debt
Contract amount				12,134	850
Utilised facilities				12,134
Unsecured debt \| Term loan, repayable in June 2024
Long-term debt
Contract amount				20,699	$ 1,450
Utilised facilities				20,699
Specific project asset finance \| Energy - Clean Fuels II project financing
Long-term debt
Contract amount				993
Utilised facilities				993
Other debt arrangements
Long-term debt
Utilised facilities				R 742