Inventories (Narrative) (Details) - ZAR (R) R in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Inventories [Abstract]
Increase (decrease) in provisions for slow-moving and redundant stock	R (1)	R 32
Provision for slow moving and redundant stock	R 281	R 282

The amount recognised resulting from the write-down of inventories to net realisable value or reversals of those write-downs. [Refer: Inventories]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 98
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_98_a&doctype=Standard
-URIDate 2018-03-16

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