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Provisions - Additional Information (Details) $ in Millions | Jun. 30, 2021 USD ($)
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Asset retirement obligations (i) | Base metals |
Provisions. |
Letters of credit and surety bonds issued in relation to asset retirement obligation | $ 621

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Balance Type: | na
Period Type: | duration

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- Definition The amount of letters of credit and surety bonds issued in relation to asset retirement obligation. + References No definition available. + Details
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- Details
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- Details
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