v3.26.1
Net finance costs - Finance costs (Details) - ZAR (R)
R in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about borrowings      
Borrowing costs incurred before amortisation of loan costs and notional interest R 9,185 R 10,048 R 10,712
Amortisation of loan costs 160 126 161
Notional interest 912 1,171 1,198
Total finance costs 10,257 11,345 12,071
Amounts capitalised to assets under construction, a class of Property, plant and equipment (845) (1,883) (1,644)
Finance costs per income statement 9,412 9,462 10,427
Total finance costs before amortisation of loan costs and notional interest 9,185 10,048 10,712
Deduct: amortisation of modification gain (1) (1)  
Less: interest accrued on long-term debt and lease liabilities (2,119) (2,035) (2,071)
Less: interest raised on tax payable (2) (14) (3)
Finance costs per the statement of cash flows [1] 7,063 7,998 8,638
Debt      
Disclosure of detailed information about borrowings      
Borrowing costs incurred before amortisation of loan costs and notional interest 7,364 8,178 8,952
Total finance costs before amortisation of loan costs and notional interest 7,364 8,178 8,952
Lease liabilities      
Disclosure of detailed information about borrowings      
Borrowing costs incurred before amortisation of loan costs and notional interest 1,758 1,669 1,557
Total finance costs before amortisation of loan costs and notional interest 1,758 1,669 1,557
Other      
Disclosure of detailed information about borrowings      
Borrowing costs incurred before amortisation of loan costs and notional interest 63 201 203
Total finance costs before amortisation of loan costs and notional interest R 63 R 201 R 203
[1] Included in finance costs paid are amounts capitalised to assets under construction a class of Property, plant and equipment (refer to note 16).