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IMPAIRMENT, NET OF REVERSALS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Impairment charges
Impairment charge related to property, plant and equipment		$ 21.5
Reversal of impairment charges		97.0
Impairment, net of reversals		$ 21.5
Tax expense (recovery) on impairment charge	$ (83.6)
Paracatu
Impairment charges
Impairment charge related to property, plant and equipment	253.0
Tax expense (recovery) on impairment charge	(86.0)
Carrying amounts of property, plant and equipment	1,275.6
Tasiast
Impairment charges
Reversal of impairment charges	142.9
Carrying amounts of property, plant and equipment	1,417.5
Fort Knox
Impairment charges
Reversal of impairment charges	88.6
Tax expense (recovery) on impairment charge	2.4
Carrying amounts of property, plant and equipment	$ 420.2

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The amount of impairment loss recognised in profit or loss. [Refer: Impairment loss; Profit (loss)]

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The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment]

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The amount recognised as an increase of the carrying amount of an asset or cash-generating unit to its recoverable amount when an impairment loss had been previously recognised. [Refer: Impairment loss]

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