XML 137 R130.htm IDEA: XBRL DOCUMENT v3.10.0.1
Long-term debt - Subsidiary (Details)
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Sasol Financing International Limited        
Disclosure of subsidiaries [line items]        
Proportion of ownership interest in subsidiary 100.00% 100.00% 100.00% 100.00%