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Long-term provisions - Expected timing of future cash flows and Business segmentation (Details) - ZAR (R)
R in Millions
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Provisions      
Total provisions R 17,361 R 22,905  
Short-term portion (1,197) (1,048)  
Long-term provisions 16,164 21,857 R 17,622
Estimated undiscounted obligation 92,109 96,033  
Within one year      
Provisions      
Total provisions 1,197 1,048  
One to five years      
Provisions      
Total provisions 5,287 5,324  
More than five years      
Provisions      
Total provisions R 10,877 R 16,533