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Trade and Other Receivables - Disclosure of Movement in the Loss Allowance for Trade and Other Receivables (Details) - Trade and other receivables - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Reconciliation of changes in allowance account for credit losses of financial assets    
Balance at beginning of year R 60 R 51
Increase in loss allowance recognised during the year 47 11
Reversal of loss allowance during the year (39) (2)
Balance at end of year R 68 R 60