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Financial risk management and financial instruments - Currency Exposure (Details) - Foreign currency risk - ZAR (R) R in Millions | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Financial risk management and financial instruments |  |
Percentage of change in significant exposure used for sensitivity analysis | 10.00% | 10.00%
Euro |  |
Financial risk management and financial instruments |  |
Net exposure | R (129) | R (563)
Equity impact of decrease in risk exposure | (13) | (56)
Income statement impact of decrease in risk exposure | (13) | (56)
Euro | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 2,726 | 1,870
Net exposure on liabilities | (296) | (387)
Net exposure | 2,430 | 1,483
Euro | Balances between group companies |  |
Financial risk management and financial instruments |  |
Net exposure | (2,559) | (2,046)
US dollar |  |
Financial risk management and financial instruments |  |
Net exposure | (5,878) | (29,677)
Equity impact of decrease in risk exposure | (511) | (2,968)
Income statement impact of decrease in risk exposure | (511) | (2,968)
US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 3,709 | 4,609
Net exposure on liabilities | (1,523) | (2,392)
Net exposure | 2,186 | 2,217
US dollar | Balances between group companies |  |
Financial risk management and financial instruments |  |
Net exposure | (8,064) | (31,894)
Long-term debt (including lease liabilities) | Euro | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on liabilities |  | (119)
Long-term debt (including lease liabilities) | US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on liabilities |  | (718)
Trade and other payables | Euro | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on liabilities | (296) | (268)
Trade and other payables | US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on liabilities | (1,523) | (1,674)
Long-term receivables | US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 323 | 427
Trade and other receivables | Euro | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 831 | 394
Trade and other receivables | US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 2,265 | 3,218
Cash and cash equivalents | Euro | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | 1,895 | 1,476
Cash and cash equivalents | US dollar | External balances |  |
Financial risk management and financial instruments |  |
Net exposure on assets | R 1,121 | R 964

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