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Materials, energy and consumables used - Other commitment (Details)
R in Billions
 12 Months Ended
Jun. 30, 2023
ZAR (R)
agreement
MW
Jun. 30, 2022
ZAR (R)
Sasol Gas (Pty) Ltd    
Purchase commitments    
Purchase commitments | R R 38 R 40
Independent Power Producers    
Purchase commitments    
Number of Power Purchase Agreements signed | agreement 6  
Contractual term for agreement signed 20 years  
Independent Power Producers | Minimum    
Purchase commitments    
Amount of renewable energy procured in agreement | MW 600  
Msenge Emoyeni Wind Farm Proprietary Limited    
Purchase commitments    
Contractual term for agreement signed 20 years  
Amount of renewable energy procured in agreement | MW 69  
Oxygen supply agreements for Secunda Operations    
Purchase commitments    
Off-take agreements | R R 219 R 88
Air Liquide    
Purchase commitments    
Agreement term (in years) 15 years