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Financial risk management and financial instruments - Variable Rate Sensitivity (Details) - Interest rate risk - Variable - ZAR (R) R in Millions | 12 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Financial risk management and financial instruments |  |
Percentage of increase in risk variable used for sensitivity analysis | 1.00% | 1.00%
Percentage of decrease in risk variable used for sensitivity analysis | 1.00% | 1.00%
South Africa |  |
Financial risk management and financial instruments |  |
Income statement impact of increase in risk variable | R 27 | R (66)
Income statement impact of decrease in risk variable | (27) | 66
Europe |  |
Financial risk management and financial instruments |  |
Income statement impact of increase in risk variable | 15 | 6
Income statement impact of decrease in risk variable | R (15) | (6)
Minimum reasonably possible repo interest rate | 0.00% |
United States of America |  |
Financial risk management and financial instruments |  |
Income statement impact of increase in risk variable | R (433) | (362)
Income statement impact of decrease in risk variable | R 433 | 362
Minimum reasonably possible repo interest rate | 0.00% |
Other |  |
Financial risk management and financial instruments |  |
Income statement impact of increase in risk variable | R 12 | 18
Income statement impact of decrease in risk variable | R (12) | R (18)

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- Definition The increase (decrease) in profit (loss), before tax, as a result of a decrease in a designated risk exposure that was reasonably possible at the end of the reporting period. + References No definition available. + Details
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