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Financial risk management - Metal and input price risk (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Gold price |  |
FINANCIAL RISK MANAGEMENT |  |
Impact on net earnings due to 10 % change in price | $ 49.9 | $ 21.9
Copper price |  |
FINANCIAL RISK MANAGEMENT |  |
Impact on net earnings due to 10 % change in price | 24.7 | 19.5
Fuel and electricity price |  |
FINANCIAL RISK MANAGEMENT |  |
Impact on net earnings due to 10 % change in price | $ 5.7 | $ 3.9

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- Definition it represents the total impact on net earnings due to 10 percent change in price. + References No definition available. + Details
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