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SUPPLEMENTARY MINERAL RESERVE INFORMATION (UNAUDITED) (Details) | Dec. 31, 2013 lb
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Supplementary Mineral Reserve Information [Abstract] |
Long-term average price for copper used to estimate recoverable reserves (in dollars per pound) | 2.00
Long-term average price for gold used to estimate recoverable reserves (in dollars per ounce) | 1,000
Long-term average price for molybdenum used to estimate recoverable reserves (in dollars per pound) | 10
Long-term average price for silver used to estimate recoverable reserves (in dollars per ounce) | 15
Long-term average price for cobalt used to estimate recoverable reserves (in dollars per pound) | 10
Three-year average London spot price for copper (per pound) | 3.64
Three-year average London spot price for gold (per ounce) | 1,550
Three-year average price for molybdenum (per pound) | 12.85
Estimated recoverable proven and probable copper reserves in leach stockpiles (in pounds) | 3,300,000,000
Estimated recoverable proven and probable copper reserves in mill stockpiles (in pounds) | 1,400,000,000

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- Definition Estimated consolidated recoverable proven and probable copper reserves in leach stockpiles (in billion pounds), including FCX's joint venture partner's interest in the Morenci mine. + References No definition available. + Details
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- Details
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- Definition Three-year average price for molybdenum + References No definition available. + Details
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