PROPERTY, PLANT, EQUIPMENT AND MINING DEVELOPMENT COSTS, NET (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment, Net [Abstract]

Property, Plant, Equipment and Mining Development Costs, Net

The components of net property, plant, equipment and mining development costs follow:

	December 31,
	2014			2013
Proven and probable mineral reserves	$	4,651		$	4,651
VBPP	1,042			1,044
Mining development and other	4,712			4,335
Buildings and infrastructure	5,100			4,334
Machinery and equipment	11,251			10,379
Mobile equipment	3,926			3,903
Construction in progress	6,802			5,603
Property, plant, equipment and mining development costs	37,484			34,249
Accumulated depreciation, depletion and amortization	(11,264		)	(10,207		)
Property, plant, equipment and mining development costs, net	$	26,220		$	24,042