v3.26.3
Borrowings - Disclosure of Interest Bearing Borrowings (Details)
R in Millions, $ in Millions
 12 Months Ended
Jul. 02, 2026
USD ($)
Jun. 30, 2026
ZAR (R)
Jun. 30, 2025
ZAR (R)
Jun. 30, 2024
ZAR (R)
Oct. 24, 2025
ZAR (R)
Non-current borrowings          
Balance at beginning of year   R 1,894 R 1,785    
Translation   888 46 R 83  
Non-current portion of non-current borrowings   0 (1,894) (1,785)  
Current borrowings          
Balance at beginning of year   59 9    
Interest accrued   1,034 266 426  
Current borrowings and current portion of non-current borrowings   (9,476) (59) (9)  
Borrowings Bearing Interest   9,476 1,953    
Undrawn committed borrowing facilities   25,009 30,005 9,300  
US$400 million facility - Sustainability Linked          
Non-current borrowings          
Balance at beginning of year   1,770 1,785    
Draw down   3,309 0    
Amortization Of Debt Issue Costs   (19) (29)    
Transferred to current liabilities   (4,917) 0    
Translation   (167) (44)    
Payments for debt issue costs   (14) 0    
Non-current portion of non-current borrowings   0 (1,770) (1,785)  
Current borrowings          
Balance at beginning of year   7 9    
Interest accrued   207 138    
Transferred from non-current liabilities   4,917 0    
Translation   (1) (2)    
Current borrowings and current portion of non-current borrowings   (4,965) (7) (9)  
Interest Paid on Current Borrowings   165 138    
Payments for debt issue costs   (14) 0    
Amortisation of issue costs   19 29    
R1.5 billion facility - Green Term Loan          
Non-current borrowings          
Balance at beginning of year   124 0    
Draw down   0 226    
Repayments   (176) (50)    
Amortization Of Debt Issue Costs   (2) (1)    
Reclassification from prepayments   0 (3)    
Transferred to current liabilities   50 (50)    
Non-current portion of non-current borrowings   0 (124) 0  
Current borrowings          
Balance at beginning of year   52 0    
Interest accrued   14 12    
Transferred from non-current liabilities   (50) 50    
Current borrowings and current portion of non-current borrowings   0 (52) 0  
Interest Paid on Current Borrowings   16 10    
Amortisation of issue costs   2 1    
US1.25 billion facility - Bridge Facility          
Non-current borrowings          
Amortization Of Debt Issue Costs   (253) 0    
Payments for debt issue costs   (253) 0    
Current borrowings          
Balance at beginning of year   0 0    
Interest accrued   458 0    
Interest paid $ (275) (10,008) 0    
Translation   (705) 0    
Current borrowings and current portion of non-current borrowings   (4,511) 0 0  
Interest Paid on Current Borrowings   455 0    
Proceeds from current borrowings   15,221 0    
Payments for debt issue costs   (253) 0    
Amortisation of issue costs   253 0    
Senior Syndicated Facility          
Current borrowings          
Balance at beginning of year   0 0    
Interest accrued   2 0    
Interest paid   (3,809) 0    
Translation   (27) 0    
Current borrowings and current portion of non-current borrowings   0 0 R 0  
Borrowings recognised as of acquisition date         R 3,858
Interest Paid on Current Borrowings   (24) 0    
Current          
Current borrowings          
Balance at beginning of year   59      
Current borrowings and current portion of non-current borrowings   (9,476) (59)    
Undrawn committed borrowing facilities   4,139 22,181    
Between one to two years          
Non-current borrowings          
Balance at beginning of year   1,820      
Non-current portion of non-current borrowings   0 (1,820)    
Due between two to three years          
Non-current borrowings          
Balance at beginning of year   50      
Non-current portion of non-current borrowings   0 (50)    
Between three to four years          
Non-current borrowings          
Balance at beginning of year   24      
Non-current portion of non-current borrowings   0 (24)    
Expiring after one year (b)          
Current borrowings          
Undrawn committed borrowing facilities   R 20,870 R 7,824