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INVESTMENTS IN REHABILITATION OBLIGATION FUNDS - Environmental obligations (Details) - ZAR (R) R in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Changes in investments in rehabilitation obligation funds movement [abstract]
Opening balance, in environmental rehabilitation trust funds	R 542.2	R 508.9
FWGR Acquisition, in environmental rehabilitation trust funds	0.0	0.0
Growth, in environmental rehabalitation trust funds	22.5	33.3	R 30.5
Cash and cash equivalents, in environmental rehabilitation trust funds	564.7	542.2	508.9
Opening balance, for environmental rehabilitation guarantees	83.8	78.6
Growth, for environmental rehabilitation guarantees	3.7	5.2	7.9
Closing balance, for environmental rehabilitation guarantees	87.5	83.8	R 78.6
Investments in rehabilitation obligation funds	R 652.2	R 626.0

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The amount of financial assets recognized through sharebased transactions.

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- Definition

The increase (decrease) in environmental guarantees, resulting from remeasurement.

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Income in investments environmental rehabilitation trust funds.

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The amount of investments in rehabilitation obligations funds.

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The amount of non-current investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Non-current assets; Investments other than investments accounted for using equity method]

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The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

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