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Deferred tax - Temporary differences (Details) - ZAR (R) R in Millions | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
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Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | R (24,511) | R (31,665) | R (8,563)
Deferred tax liabilities | 7,793 | 19,154 | R 26,541
Property, plant and equipment |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | 6,287 | (5,285) |
Deferred tax liabilities | 13,392 | 25,423 |
Right of use assets |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | 1,024 | 1,103 |
Deferred tax liabilities | 1,370 | 1,150 |
Current assets |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax liabilities | (1,124) | (894) |
Short- and long-term provisions |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | (3,731) | (4,065) |
Deferred tax liabilities | (3,948) | (3,371) |
Calculated tax losses |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | (24,097) | (18,768) |
Deferred tax liabilities | (11) | (448) |
Financial liabilities |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | (1,324) | (2,238) |
Deferred tax liabilities | 135 | (517) |
Other temporary differences |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |  |
Deferred tax assets | (2,670) | (2,412) |
Deferred tax liabilities | R (2,021) | R (2,189) |

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