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Taxation - Reconciliation of effective tax rate (Details) - ZAR (R) R in Millions |  |  |  |  |  |  |  |  | 12 Months Ended
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Jul. 01, 2022 | Jun. 30, 2022 | Jun. 29, 2022 | Jun. 03, 2021 | May 04, 2021 | Feb. 25, 2021 | Dec. 31, 2020 | Dec. 01, 2020 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Normal tax rate |  |  |  |  |  |  |  |  | 27.00% | 28.00% | 28.00%
Increase/(decrease) in rate of tax due to - disallowed expenditure |  |  |  |  |  |  |  |  | 6.10% | 1.10% | 11.40%
Increase/(decrease) in rate of tax due to - disallowed share-based payment expenses |  |  |  |  |  |  |  |  | 0.20% | 0.10% | 2.30%
Increase/(decrease) in rate of tax due to - different tax rates |  |  |  |  |  |  |  |  | 3.10% | 0.50% | 0.50%
Increase/(decrease) in rate of tax due to - tax losses not recognised |  |  |  |  |  |  |  |  | 4.80% | 0.80% |
Increase/(decrease) in rate of tax due to - translation differences |  |  |  |  |  |  |  |  | 4.30% |  |
Increase/(decrease) in rate of tax due to - capital gains and losses |  |  |  |  |  |  |  |  |  | 1.60% |
Increase/(decrease) in rate of tax due to - prior year adjustments |  |  |  |  |  |  |  |  |  | 0.70% | (2.20%)
Increase/(decrease) in rate of tax due to - other adjustments |  |  |  |  |  |  |  |  | 2.10% | 0.30% |
(Decrease)/increase in rate of tax due to - exempt income |  |  |  |  |  |  |  |  | (2.70%) | (5.90%) | (10.00%)
(Decrease)/increase in rate of tax due to - share of profits of equity accounted investments |  |  |  |  |  |  |  |  | (4.90%) | (1.60%) | (2.10%)
(Decrease)/increase in rate of tax due to - utilisation of tax losses |  |  |  |  |  |  |  |  | (0.70%) | (0.10%) | (20.90%)
(Decrease)/increase in rate of tax due to - investment incentive allowances |  |  |  |  |  |  |  |  | (1.30%) | (0.10%) | (0.40%)
(Decrease)/increase in rate of tax due to - translation differences |  |  |  |  |  |  |  |  |  | (0.30%) | (1.90%)
(Decrease)/increase in rate of tax due to - capital gains and losses |  |  |  |  |  |  |  |  | (0.20%) |  | (1.80%)
(Decrease)/increase in rate of tax due to - change in South African corporate income tax rate |  |  |  |  |  |  |  |  |  | (0.10%) |
(Decrease)/increase in rate of tax due to - prior year adjustments |  |  |  |  |  |  |  |  | (2.10%) |  |
(Decrease)/increase in rate of tax due to - other adjustments |  |  |  |  |  |  |  |  |  |  | (1.20%)
Effective tax rate |  |  |  |  |  |  |  |  | 35.70% | 25.00% | 1.70%
South Africa |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Normal tax rate | 27.00% | 28.00% |  |  |  |  |  |  |  |  |
Translation difference arising from exchange rates |  |  |  |  |  |  |  |  | R 845 |  |
United States |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Normal tax rate |  |  |  |  |  |  |  |  | 23.00% |  |
Mozambique |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Normal tax rate |  |  |  |  |  |  |  |  | 32.00% |  |
Republic of Mozambique Pipeline Investment Company (Pty) Ltd (ROMPCO) |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  | 30.00% |  |  |  |  |  |  |  |
Lake Charles Chemicals Project |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  |  |  |  |  |  | 50.00% |  |  |
Gemini HDPE LLC |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  |  |  |  |  | 50.00% |  |  |  |
Sasol Chevron Holdings Limited |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  |  | 50.00% |  |  |  |  |  |  |
Etame Marin block offshore Gabon |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  |  |  |  | 27.80% |  |  |  |  |
Block DE-8 offshore Gabon |  |  |  |  |  |  |  |  |  |  |
Reconciliation of average effective tax rate and applicable tax rate |  |  |  |  |  |  |  |  |  |  |
Proportion of equity interest disposed of |  |  |  |  | 40.00% |  |  |  |  |  |

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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from a change in tax rate. [Refer: Average effective tax rate; Applicable tax rate] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the application of foreign tax rates. [Refer: Average effective tax rate; Applicable tax rate] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from revenue that is exempt from taxation. [Refer: Average effective tax rate; Applicable tax rate] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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