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Financial risk management and financial instruments - Commodity Price Sensitivity (Details) - Commodity price risk - crude oil - ZAR (R) R in Millions | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Financial risk management and financial instruments |  |
Percentage of change in significant exposure used for sensitivity analysis | 10.00% | 10.00%
Income Statement impact of increase in risk variable | R (153) | R (95)

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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 increase (decrease) in profit (loss), before tax, as a result of an increase in the relevant risk variable that was reasonably possible at the end of the reporting period. + References No definition available. + Details
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- Definition The reasonably possible percentage of change in the designated risk exposure used to determine the financial impact in a sensitivity analysis. A decrease would result in a positive change to equity and income. An increase would result in a negative change to equity and income in the same amounts. + References No definition available. + Details
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- Details
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