v3.26.1
Post-retirement benefit obligations - Reconciliation Plan Assets, RF, Contributions (Details) - Pension - ZAR (R)
R in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Disclosure of net defined benefit liability (asset)    
Beginning balance R (7,247)  
Ending balance (6,120) R (7,247)
Plan assets    
Disclosure of net defined benefit liability (asset)    
Beginning balance 91,768 83,985
Movements recognised in the income statement: 8,524 9,640
interest income 8,524 9,640
Actuarial (losses)/gains recognised in other comprehensive income: 823 1,559
arising from return on plan assets (excluding interest income) 823 1,559
Plan participant contributions 640 658
Employer contributions 1,429 1,401
Benefits payments (5,421) (5,363)
Translation of foreign operations (362) (112)
Ending balance 97,401 91,768
Actual return on plan assets 9,347 11,199
South Africa    
Disclosure of net defined benefit liability (asset)    
Beginning balance 113  
Ending balance 124 113
South Africa | Funded benefit obligation    
Disclosure of net defined benefit liability (asset)    
Projected pension contributions for next fiscal year 1,399  
South Africa | Plan assets    
Disclosure of net defined benefit liability (asset)    
Beginning balance 87,141 79,389
Movements recognised in the income statement: 8,305 9,420
interest income 8,305 9,420
Actuarial (losses)/gains recognised in other comprehensive income: 514 1,283
arising from return on plan assets (excluding interest income) 514 1,283
Plan participant contributions 640 658
Employer contributions 1,372 1,335
Benefits payments (5,048) (4,944)
Ending balance 92,924 87,141
Actual return on plan assets 8,819 10,703
Foreign Countries    
Disclosure of net defined benefit liability (asset)    
Beginning balance (7,360)  
Ending balance (6,244) (7,360)
Foreign Countries | Funded benefit obligation    
Disclosure of net defined benefit liability (asset)    
Projected pension contributions for next fiscal year 57  
Foreign Countries | Plan assets    
Disclosure of net defined benefit liability (asset)    
Beginning balance 4,627 4,596
Movements recognised in the income statement: 219 220
interest income 219 220
Actuarial (losses)/gains recognised in other comprehensive income: 309 276
arising from return on plan assets (excluding interest income) 309 276
Employer contributions 57 66
Benefits payments (373) (419)
Translation of foreign operations (362) (112)
Ending balance 4,477 4,627
Actual return on plan assets R 528 R 496