v3.26.3
Restatement of comparative information - change to group income statement (Details) - ZAR (R)
R / shares in Units, R in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Group Income Statement [Line Items]      
Total cost of sales1 R (54,656) R (49,766) R (47,409)
Production costs1 (48,435) (43,149) (38,995)
Amortisation and depreciation1 (7,336) (4,979) (4,746)
Gross profit1 44,582 24,130 13,970
Corporate, administration and other expenditure1 (1,967) (1,600) (1,593)
Other operating expenses1 (429) (289) (252)
Operating profit1 40,898 20,330 11,144
Profit before taxation1 38,358 21,179 11,238
Taxation1 (8,905) (6,631) (2,941)
Net profit for the year 29,453 14,548 8,297
Owners of the parent1 R 29,349 R 14,384 R 8,196
Basic earnings (loss) per share R 47.01 R 23.13 R 13.23
Diluted earnings (loss) per share R 46.32 R 22.88 R 13.02
Previously presented      
Group Income Statement [Line Items]      
Total cost of sales1   R (49,635) R (47,233)
Production costs1   (43,155) (38,923)
Amortisation and depreciation1   (4,842) (4,642)
Gross profit1   24,261 14,146
Corporate, administration and other expenditure1   (1,647) (1,294)
Other operating expenses1   (346) (195)
Operating profit1   20,357 11,676
Profit before taxation1   21,206 11,770
Taxation1   (6,658) (3,082)
Net profit for the year   14,548 8,688
Owners of the parent1   R 14,384 R 8,587
Basic earnings (loss) per share   R 2,313 R 1,386
Diluted earnings (loss) per share   R 2,288 R 1,364
Increase (decrease) due to corrections of prior period errors [member]      
Group Income Statement [Line Items]      
Total cost of sales1   R (131) R (176)
Production costs1   6 (72)
Amortisation and depreciation1   (137) (104)
Gross profit1   (131) (176)
Corporate, administration and other expenditure1   47 (299)
Other operating expenses1   57 (57)
Operating profit1   (27) (532)
Profit before taxation1   (27) (532)
Taxation1   27 141
Net profit for the year   0 (391)
Owners of the parent1   R 0 R (391)
Basic earnings (loss) per share   R 0 R (63)
Diluted earnings (loss) per share   R 0 R (62)