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Long-term debt - Summary (Details) - ZAR (R)
R in Millions
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Long-term debt.      
Total long-term debt R 104,834 R 102,643 R 167,197
Short-term portion (22,334) (5,506)  
Long-term debt R 82,500 R 97,137