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Deferred tax - Calculated tax losses carried forward (Details) - ZAR (R) R in Millions	Jun. 30, 2019	Jun. 30, 2018
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

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