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Deferred tax - Calculated tax losses carried forward (Details) - ZAR (R) R in Millions | Jun. 30, 2019 | Jun. 30, 2018
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Disclosure of temporary difference, unused tax losses and unused tax credits |  |
Calculated tax losses carried forward that have not been recognised | R 18,699 | R 17,621
Between three and five years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |
Calculated tax losses carried forward that have not been recognised | 712 | 376
More than five years |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |
Calculated tax losses carried forward that have not been recognised | 2,212 | 2,052
Indefinite Life |  |
Disclosure of temporary difference, unused tax losses and unused tax credits |  |
Calculated tax losses carried forward that have not been recognised | R 15,775 | R 15,193

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- 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
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2018-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_81_e&doctype=Standard -URIDate 2018-03-16 + Details
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