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Short-term debt (Details)
R in Millions, $ in Billions
Jun. 30, 2022
ZAR (R)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
ZAR (R)
Disclosure of detailed information about borrowings      
Short-term debt R 82   R 60
Short-term portion of long-term debt 22,334   5,506
Current lease liabilities 1,768   1,771
Total short-term debt 24,184   R 7,337
Unsecured debt, bond repayable in November 2022      
Disclosure of detailed information about borrowings      
Short-term portion of long-term debt 16,000 $ 1  
Unsecured debt, repayable in August 2022      
Disclosure of detailed information about borrowings      
Short-term portion of long-term debt R 2,200