Revenue (Details) - ZAR (R) R in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	R 26,459	R 19,255	R 18,766
Hedging gain	453	1,197	728
Total revenue	26,912	20,452	19,494
Gold
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	25,693	19,162	18,536
Silver
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	589	74	230
Uranium
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from contracts with customers	R 177	R 19	R 0

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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+ Details