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Tax litigation and other legal matters (Details)
R in Millions
1 Months Ended
Oct. 31, 2013
customer
Dec. 31, 2020
ZAR (R)
Tax contingent liability    
Contingent liabilities    
Estimated financial effect of contingent liabilities   R 2,540
Securities class action | LCCP    
Contingent liabilities    
Legal proceedings provision   0
Legal review of Sasol Gas National Energy Regulator of South Africa (NERSA) maximum price decision and NERSA gas transmission tariff application    
Contingent liabilities    
Number of customers that requested review application | customer 7  
Legal proceedings provision   R 0