v3.26.1
(Loss)/gain on financial instruments (Details)
R in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Dec. 09, 2024
R / oz
oz
Nov. 04, 2024
oz
R / oz
Jun. 01, 2024
Nov. 17, 2023
oz
R / oz
agreement
May 03, 2023
R / oz
oz
Jun. 15, 2021
$ / t
oz
Mar. 31, 2025
oz
AUD ($)
Nov. 30, 2024
AUD ($)
oz
agreement
Nov. 30, 2021
AUD ($)
t
Dec. 31, 2025
oz
AUD ($)
Dec. 31, 2025
ZAR (R)
oz
AUD ($)
Dec. 31, 2024
ZAR (R)
Dec. 31, 2023
ZAR (R)
Jun. 30, 2024
oz
AUD ($)
agreement
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     R (3,794) R 5,433 R 235  
Fixed monthly price           3,717     3,938          
Unrealised gains (losses) | R                     R 2,509 (5,574) 101  
Gold                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce) 168,000 182,000     154,320                  
Term of agreement 12 months 13 months     12 months                  
Quantity per month 14,000 14,000     12,860                  
Number of hedge agreements | agreement       2                    
Gold | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)       120,000                    
Term of agreement       12 months                    
Gold | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)       240,000                    
Term of agreement       12 months                    
Gold | Minimum                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz 45,000 45,000     34,214                  
Gold | Minimum | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz       34,214                    
Gold | Minimum | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz       34,214                    
Gold | Maximum                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz 54,400 58,500     46,050                  
Gold | Maximum | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz       43,545                    
Gold | Maximum | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | R / oz       43,800                    
Zinc                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)           90,000     90,000          
Term of agreement           3 years     2 years          
Quantity per month           2,500     3,750          
Number of hedge agreements | agreement               2           2
Zinc | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)               6,000           5,940
Term of agreement     18 months                      
Quantity per month                           330
Zinc | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)               12,000           30,060
Term of agreement     18 months         12 months            
Quantity per month               1,000           1,670
Zinc | Hedge agreement 3                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)             5,112              
Term of agreement             9 months              
Quantity per month             568              
Zinc | Hedge agreement 4                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)                   3,300 3,300      
Term of agreement                   6 months        
Quantity per month                   550 550      
Zinc | Hedge agreement 5                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)                   6,000 6,000      
Term of agreement                   6 months        
Quantity per month                   1,000 1,000      
Zinc | Hedge agreement 6                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)                   2,700 2,700      
Term of agreement                   6 months        
Quantity per month                   450 450      
Zinc | Hedge agreement 7                            
(Loss)/gain on financial instruments                            
Quantity of hedged instrument (in kg/ounce)                   12,000 12,000      
Term of agreement                   6 months        
Quantity per month                   2,000 2,000      
Zinc | Minimum | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $               4,150           4,300
Zinc | Minimum | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $               4,200           4,100
Zinc | Minimum | Hedge agreement 3                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $             4,200              
Zinc | Minimum | Hedge agreement 4                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,250 4,250      
Zinc | Minimum | Hedge agreement 5                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,200 4,200      
Zinc | Minimum | Hedge agreement 6                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,250 4,250      
Zinc | Minimum | Hedge agreement 7                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,300 4,300      
Zinc | Maximum | Hedge agreement 1                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $               4,500           4,830
Zinc | Maximum | Hedge agreement 2                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $               4,780           4,340
Zinc | Maximum | Hedge agreement 3                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $             4,950              
Zinc | Maximum | Hedge agreement 4                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,800 4,800      
Zinc | Maximum | Hedge agreement 5                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,750 4,750      
Zinc | Maximum | Hedge agreement 6                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,800 4,800      
Zinc | Maximum | Hedge agreement 7                            
(Loss)/gain on financial instruments                            
Average price (in ZAR/USD per kilogram/Ounce) | $                   4,900 4,900      
Derivative financial instrument | Derivative financial instrument                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     R 156 (234) 491  
Derivative financial instrument | Option contract                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     0 1,733 (2,136)  
Derivative financial instrument | Gold | Forward contract                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     (1,736) (448) (140)  
Derivative financial instrument | Palladium | Forward contract                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     0 0 72  
Fair value (loss)/gain on cash-settled share-based payment obligations (Rustenburg and Marikana B-BBEE transactions)                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     (420) 814 1,589  
Loss on the revised cash flow of the Rustenburg operation deferred payment                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     0 0 (4)  
(Loss)/gain on the revised cash flow of the Burnstone Debt                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     (1,805) 1,053 32  
Gain on the revised cash flow of the Marikana dividend obligation                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     5 1,046 548  
Fair value gain/(loss) on contingent consideration (Kroondal acquisition)                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     0 396 (137)  
Fair value gain/(loss) on Keliber dividend obligation                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     427 811 (287)  
Fair value gain/(loss) on other investments                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     185 (24) 116  
Other                            
(Loss)/gain on financial instruments                            
Total gain/(loss) on financial instruments | R                     R (606) R 286 R 91