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Provision for Silicosis Settlement - Reconciliation of the Total Provision for the Silicosis Settlement (Details) - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Reconciliation of changes in other provisions    
Balance at beginning of year R 925 R 917
Balance at end of year 942 925
Provision raised for settlement    
Reconciliation of changes in other provisions    
Change in estimate (62) (68)
Time value of money and inflation component R 79 R 76