v3.26.1
Environmental rehabilitation obligation funds (Details) - ZAR (R)
R in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of fair value measurement of assets [line items]      
Balance at beginning of the year R 6,691 [1] R 5,927 R 5,306
Assets acquired on acquisition of subsidiary 0 0 616
Assets derecognised with deemed disposal of interest in joint operation 0 0 (260)
Contributions made 158 273 185
Payments received (19) (24) (322)
Interest income 417 404 339
Transfer to other financial assets 0 0 (22)
Fair value gain 5 (113) 108
Balance at end of the year 7,307 6,691 [1] 5,927
Restricted funds 2,457 2,134 1,850
Other funds 4,850 4,557 4,077
FVTPL      
Disclosure of fair value measurement of assets [line items]      
Balance at beginning of the year 3,750 3,212  
Balance at end of the year 3,915 3,750 3,212
Amortised cost      
Disclosure of fair value measurement of assets [line items]      
Balance at beginning of the year 2,941 2,715  
Balance at end of the year 3,392 2,941 2,715
Environmental rehabilitation obligation funds      
Disclosure of fair value measurement of assets [line items]      
Fair value gain 63 112 80
Foreign currency translation R (3) R (1) R 5
[1] Amount for 31 December 2024 was revised (see note 16.2)