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Long-term debt - Maturity profile (Details) - ZAR (R)
R in Millions
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Maturity profile      
Long-term debt R 102,643 R 167,197 R 129,569
Within one year      
Maturity profile      
Long-term debt 5,506 19,686  
One to five years      
Maturity profile      
Long-term debt 64,495 133,179  
More than five years      
Maturity profile      
Long-term debt R 32,642 R 14,332