XML 172 R165.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Long-term provisions - Environmental provisions, Risk-free rates and Impact of changes to discount rates (Details) - ZAR (R) R in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Disclosure of other provisions [line items] |  |  |
Provisions | R 17,727 | R 18,779 | R 21,873
Environmental |  |  |
Disclosure of other provisions [line items] |  |  |
Provisions | 14,933 | 15,716 | R 17,128
Investments restricted for mining rehabilitation purposes | 649 | 607 |
Indemnities for mining rehabilitation purposes | R 2,066 | 1,952 |
Assumed percentage change in discount rate | 1.00% |  |
Increase in the discount rate | R (2,202) | (2,983) |
amount capitalised to property, plant and equipment | (910) | (1,646) |
income recognised in income statement | (1,292) | (1,337) |
Decrease in the discount rate | 3,786 | 4,114 |
amount capitalised to property, plant and equipment | 2,058 | 2,272 |
expense recognised in income statement | R 1,728 | R 1,842 |
Minimum | Environmental | South Africa |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 7.30% | 7.30% |
Minimum | Environmental | Europe |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 0.00% | 0.00% |
Minimum | Environmental | United States of America |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 2.60% | 1.30% |
Minimum | Environmental | Canada |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 2.00% | 0.90% |
Maximum | Environmental | South Africa |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 9.20% | 8.60% |
Maximum | Environmental | Europe |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 1.50% | 1.50% |
Maximum | Environmental | United States of America |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 3.00% | 2.60% |
Maximum | Environmental | Canada |  |  |
Disclosure of other provisions [line items] |  |  |
Risk-free interest rate used to discount estimated cash flows related to provisions | 2.70% | 2.50% |

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