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Short-term provisions (Details) - ZAR (R)
R in Millions
Jun. 30, 2018
Jun. 30, 2017
Short-term provisions    
Other provisions R 552 R 522
Short-term portion of long-term provisions 2,567 2,131
Short-term portion of post-retirement benefit obligations 389 354
Total short-term provisions R 3,508 R 3,007