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REVERSALS OF IMPAIRMENT CHARGES (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Impairment charges |
Reversals of impairment charges | $ 361.8
Accumulated depreciation, depletion, amortization and impairment |
Impairment charges |
Property, plant and equipment | 361.8
Land, plant and equipment |
Impairment charges |
Reversals of impairment charges | (361.8)
Land, plant and equipment | Accumulated depreciation, depletion, amortization and impairment |
Impairment charges |
Property, plant and equipment | 102.4
KBM |
Impairment charges |
Tax expense(recovery) on impairment charge | 68.2
Carrying amounts of property, plant and equipment | 1,461.0
KBM | Land, plant and equipment |
Impairment charges |
Reversals of impairment charges | (200.7)
Tasiast Mauritanie Ltd. S.A. |
Impairment charges |
Tax expense(recovery) on impairment charge | 0.0
Carrying amounts of property, plant and equipment | 2,123.6
Tasiast Mauritanie Ltd. S.A. | Land, plant and equipment |
Impairment charges |
Reversals of impairment charges | $ (161.1)

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