PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Disclosure of information for cash-generating units [line items]
Property, plant and equipment	$ 36,725	$ 35,638
ArcelorMittal USA LLC \| NAFTA
Disclosure of information for cash-generating units [line items]
Impairment charge for property, plant and equipment	$ 600
Pre-tax discount rate	13.98%	16.91%
Property, plant and equipment	$ 3,213

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No definition available.

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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 of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

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Property Plant and Equipment, Discount Rate, Before Tax

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