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Long-term debt - Amortised cost summary (Details) - ZAR (R) R in Millions | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
--- | --- | --- | ---
Long-term debt |  |  |
Unamortised loan costs | R (375) | R (439) |
Total long-term debt | 104,834 | 102,643 | R 167,197
Secured Debt |  |  |
Long-term debt |  |  |
Long-term debt, before unamortised costs | 67 | 108 |
Unsecured debt |  |  |
Long-term debt |  |  |
Long-term debt, before unamortised costs | R 105,142 | R 102,974 |

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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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