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PROPERTY, PLANT, EQUIPMENT AND MINING DEVELOPMENT COSTS, NET (Tables)
 12 Months Ended
Dec. 31, 2013
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,
 
2013
 
2012
Proven and probable mineral reserves
$
4,651

 
$
4,630

VBPP
1,044

 
1,067

Mining development and other
4,335

 
3,821

Buildings and infrastructure
4,334

 
3,811

Machinery and equipment
10,379

 
9,472

Mobile equipment
3,903

 
3,447

Construction in progress
5,603

 
3,402

Property, plant, equipment and mining development costs
34,249

 
29,650

Accumulated depreciation, depletion and amortization
(10,207
)
 
(8,651
)
Property, plant, equipment and mining development costs, net
$
24,042

 
$
20,999