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INVESTMENTS IN REHABILITATION AND OTHER FUNDS - Environmental obligations (Details) - ZAR (R) R in Millions | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Cash and cash equivalents, in environmental rehabilitation trust funds |  | R 0.0 | R 564.7
Opening balance |  | 564.7 | 542.2
Transfer to Guardrisk cell captive |  | (579.5) | 0.0
Growth |  | 14.8 | 22.5
Reimbursive right for environmental rehabilitation guarantees |  | 0.0 | 87.5
Opening balance |  | 87.5 | 83.8
Lapsing of old environmental rehabilitation policy retained in Guardrisk Cell Captive |  | (89.3) | 0.0
Growth |  | 1.8 | 3.7
Investments in Guardrisk Cell Captive |  | 710.8 | 0.0
Opening balance |  | 0.0 | 0.0
Transfer to Guardrisk cell captive |  | 668.8 | 0.0
Contributions |  | 28.9 | 0.0
Growth |  | 13.1 | 0.0
Investments in rehabilitation and other funds | [1] | 710.8 | 652.2
Environmental rehabilitation [Member] |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds |  | 589.8 | 0.0
Directors and Officers insurance [Member] |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds |  | 29.5 | 0.0
Other funds [Member] |  |  |
Changes in investments in rehabilitation obligation funds movement [abstract] |  |  |
Investments in rehabilitation and other funds |  | R 91.5 | R 0.0
[1] | Description of the financial statement caption has changed as it now includes funds other than rehabilitation. See note 12 for more detail.

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