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INVENTORIES, INCLUDING LONG-TERM MILL AND LEACH STOCKPILES (Tables) | 12 Months Ended
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Dec. 31, 2013
Inventories, Including Long Term Mill and Leach Stockpiles [Abstract] |
Components of Inventories | The components of inventories, excluding mill and leach stockpiles, follow:
| December 31,
| 2013 |  | 2012
Current inventories: |  |  |
Raw materials (primarily concentrates) | $ | 238 |  |  | $ | 237 |
Work-in-process a | 199 |  |  | 252 |
Finished goods b | 1,146 |  |  | 911 |
Total product inventories | $ | 1,583 |  |  | $ | 1,400 |
Mill stockpiles | $ | 91 |  |  | $ | 104 |
Leach stockpiles | 1,614 |  | c | 1,568 |
Total current mill and leach stockpiles | $ | 1,705 |  |  | $ | 1,672 |
Total materials and supplies, net d | $ | 1,730 |  |  | $ | 1,504 |
Long-term inventories: |  |  |
Mill stockpiles | $ | 698 |  |  | $ | 615 |
Leach stockpiles | 1,688 |  |  | 1,340 |
Total long-term mill and leach stockpiles e | $ | 2,386 |  |  | $ | 1,955 |
a. | FCX's mining operations also have work-in-process inventories that are included in mill and leach stockpiles.
b. | Primarily included molybdenum concentrates; copper concentrates, anodes, cathodes and rod; and various cobalt products.
c. | Amount is net of a $76 million charge associated with updated mine plans at Morenci that resulted in a loss in recoverable copper in leach stockpiles.
d. | Materials and supplies inventory was net of obsolescence reserves totaling $24 million at December 31, 2013, and $27 million at December 31, 2012.
e. | Estimated metals in stockpiles not expected to be recovered within the next 12 months.

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