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Net finance costs - Finance costs (Details) - ZAR (R) R in Millions | 12 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Disclosure of detailed information about borrowings |  |  |  |
Borrowing costs incurred before amortisation of loan costs and notional interest |  | R 10,048 | R 10,712 | R 9,005
Amortisation of loan costs |  | 126 | 161 | 212
Notional interest |  | 1,171 | 1,198 | 1,116
Total finance costs |  | 11,345 | 12,071 | 10,333
Amounts capitalised to assets under construction, a class of Property, plant and equipment |  | (1,883) | (1,644) | (1,074)
Finance costs per income statement |  | 9,462 | 10,427 | 9,259
Total finance costs before amortisation of loan costs and notional interest |  | 10,048 | 10,712 | 9,005
Add: amortisation of modification (loss)/gain |  | (1) |  | 194
Less: unwinding of loan costs |  |  |  | (144)
Less: interest accrued on long-term debt, lease liabilities and short-term debt |  | (2,035) | (2,071) | (1,966)
Less: interest raised on tax payable |  | (14) | (3) | (6)
Finance costs per the statement of cash flows | [1] | 7,998 | 8,638 | 7,083
Debt |  |  |  |
Disclosure of detailed information about borrowings |  |  |  |
Borrowing costs incurred before amortisation of loan costs and notional interest |  | 8,178 | 8,952 | 7,408
Total finance costs before amortisation of loan costs and notional interest |  | 8,178 | 8,952 | 7,408
Lease liabilities |  |  |  |
Disclosure of detailed information about borrowings |  |  |  |
Borrowing costs incurred before amortisation of loan costs and notional interest |  | 1,669 | 1,557 | 1,451
Total finance costs before amortisation of loan costs and notional interest |  | 1,669 | 1,557 | 1,451
Other |  |  |  |
Disclosure of detailed information about borrowings |  |  |  |
Borrowing costs incurred before amortisation of loan costs and notional interest |  | 201 | 203 | 146
Total finance costs before amortisation of loan costs and notional interest |  | R 201 | R 203 | R 146
[1] | Included in finance costs paid are amounts capitalised to assets under construction a class of Property, plant and equipment (refer to note 16).

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- Definition The amount of interest and other costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 23 -IssueDate 2024-01-01 -Paragraph 26 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=23&code=ifrs-tx-2024-en-r&anchor=para_26_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of interest and other costs that an entity incurs in connection with the borrowing of funds. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 82 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_82_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Borrowing costs incurred before amortisation of loan costs and notional interest + References No definition available. + Details
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