v3.26.1
Financial risk management and financial instruments - Summary of Financial Instruments (Details)
R in Millions, $ in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2026
ZAR (R)
Apr. 30, 2026
USD ($)
Jun. 30, 2026
ZAR (R)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
ZAR (R)
Financial risk management and financial instruments          
Financial assets - carrying value     R 93,127   R 85,517
Financial liabilities - carrying value     146,464   155,495
Amount issued     18,579   471
US Dollar Bond April 2033          
Financial risk management and financial instruments          
Amount issued R 12,300 $ 750 12,300 $ 750  
Long-term debt          
Financial risk management and financial instruments          
Financial liabilities - carrying value     92,374   102,645
Long-term debt | At amortised cost          
Financial risk management and financial instruments          
Financial liabilities - carrying value     92,374   102,645
Financial liabilities - fair value     92,121   98,316
Listed long-term debt | At amortised cost | Level 1 | USD          
Financial risk management and financial instruments          
Financial liabilities - carrying value     53,886   58,313
Financial liabilities - fair value     53,275   53,959
Listed long-term debt | At amortised cost | Level 2 | ZAR          
Financial risk management and financial instruments          
Financial liabilities - carrying value     9,121   4,522
Financial liabilities - fair value     9,064   4,445
Listed convertible bonds | At amortised cost | Level 3          
Financial risk management and financial instruments          
Financial liabilities - carrying value     11,368   12,238
Financial liabilities - fair value     11,405   12,263
Unlisted long-term debt | At amortised cost | Level 3          
Financial risk management and financial instruments          
Financial liabilities - carrying value     17,999   27,572
Financial liabilities - fair value     18,377   27,649
Short-term debt and bank overdraft | At amortised cost          
Financial risk management and financial instruments          
Financial liabilities - carrying value     1,266   668
Financial liabilities - fair value     1,266   668
Trade and other payables          
Financial risk management and financial instruments          
Financial liabilities - carrying value     34,831   34,757
Trade and other payables | At amortised cost          
Financial risk management and financial instruments          
Financial liabilities - carrying value     34,831   34,757
Financial liabilities - fair value     34,831   34,757
Long-term and short-term financial liabilities | At fair value through profit or loss          
Financial risk management and financial instruments          
Financial liabilities - carrying value     549   66
Financial liabilities - fair value     549   66
Commodity and currency derivative liabilities | At fair value through profit or loss | Level 2          
Financial risk management and financial instruments          
Financial liabilities - carrying value     240   45
Financial liabilities - fair value     240   45
Convertible bond embedded derivative liability          
Financial risk management and financial instruments          
Financial liabilities - carrying value     309    
Convertible bond embedded derivative liability | At fair value through profit or loss | Level 3          
Financial risk management and financial instruments          
Financial liabilities - carrying value     309   7
Financial liabilities - fair value     309   7
Oxygen supply contract embedded derivative liabilities | At fair value through profit or loss | Level 3          
Financial risk management and financial instruments          
Financial liabilities - carrying value         14
Financial liabilities - fair value         14
Long-term restricted cash | At amortised cost          
Financial risk management and financial instruments          
Financial assets - carrying value     2,145   1,945
Financial assets - fair value     2,145   1,945
Long-term receivables          
Financial risk management and financial instruments          
Financial assets - carrying value     2,768   2,884
Long-term receivables | At amortised cost | Level 3          
Financial risk management and financial instruments          
Financial assets - carrying value     2,768   2,884
Financial assets - fair value     2,768   2,848
Trade and other receivables          
Financial risk management and financial instruments          
Financial assets - carrying value     37,963   35,180
Trade and other receivables | At amortised cost          
Financial risk management and financial instruments          
Financial assets - carrying value     36,766   33,752
Financial assets - fair value     36,766   33,752
Cash and cash equivalents          
Financial risk management and financial instruments          
Financial assets - carrying value     43,304   41,050
Cash and cash equivalents | At amortised cost          
Financial risk management and financial instruments          
Financial assets - carrying value     43,304   41,050
Financial assets - fair value     43,304   41,050
Long and short-term financial assets | At fair value through profit or loss          
Financial risk management and financial instruments          
Financial assets - carrying value     9,084   6,395
Financial assets - fair value     9,084   6,395
Commodity and currency derivative assets | At fair value through profit or loss | Level 2          
Financial risk management and financial instruments          
Financial assets - carrying value     2,230   2,360
Financial assets - fair value     2,230   2,360
Oxygen supply contract embedded derivative assets | At fair value through profit or loss | Level 3          
Financial risk management and financial instruments          
Financial assets - carrying value     3,022   863
Financial assets - fair value     3,022   863
Other short-term investments | At fair value through profit or loss | Level 1          
Financial risk management and financial instruments          
Financial assets - carrying value     3,832   3,172
Financial assets - fair value     3,832   3,172
Other long-term investments | At fair value through profit or loss | Level 1          
Financial risk management and financial instruments          
Financial assets - carrying value     1,251   1,052
Financial assets - fair value     1,251   1,052
Other receivables | At fair value through profit or loss | Level 3          
Financial risk management and financial instruments          
Financial assets - carrying value     1,197   1,428
Financial assets - fair value     1,197   1,428
Investments in unlisted securities | Designated at fair value through other comprehensive income | Level 3          
Financial risk management and financial instruments          
Financial assets - carrying value     8   8
Financial assets - fair value     R 8   R 8