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SUPPLEMENTARY MINERAL RESERVE INFORMATION (UNAUDITED) (Ore Reserves) (Details) | Dec. 31, 2013 MT
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Total 100% basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 16,121,000,000 | [1]
Total 100% basis [Member] | Developed and producing [Member] | Climax [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Average ore grade of copper per metric ton | 0.00% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.16% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Morenci [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 3,779,000,000 | [1]
Average ore grade of copper per metric ton | 0.27% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1],[2]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Bagdad [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 1,449,000,000 | [1]
Average ore grade of copper per metric ton | 0.31% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1],[2]
Average ore grade of molybdenum per metric ton | 0.02% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Safford [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 149,000,000 | [1]
Average ore grade of copper per metric ton | 0.45% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Sierrita [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 2,534,000,000 | [1]
Average ore grade of copper per metric ton | 0.23% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1],[2]
Average ore grade of molybdenum per metric ton | 0.03% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tyrone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 69,000,000 | [1]
Average ore grade of copper per metric ton | 0.34% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Chino [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 376,000,000 | [1]
Average ore grade of copper per metric ton | 0.42% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.02 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1],[2]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Miami [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 15,000,000 | [1]
Average ore grade of copper per metric ton | 0.43% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Henderson [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 105,000,000 | [1]
Average ore grade of copper per metric ton | 0.00% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.17% | [1]
North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Climax [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 189,000,000 | [1]
North America [Member] | Total 100% basis [Member] | Undeveloped [Member] | Cobre [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 73,000,000 | [1]
Average ore grade of copper per metric ton | 0.39% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Cerro Verde [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 4,047,000,000 | [1]
Average ore grade of copper per metric ton | 0.37% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.01% | [1]
South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | El Abra [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 576,000,000 | [1]
Average ore grade of copper per metric ton | 0.45% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Candelaria [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 281,000,000 | [1]
Average ore grade of copper per metric ton | 0.58% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.14 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Ojos del Salado [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 8,000,000 | [1]
Average ore grade of copper per metric ton | 1.00% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.23 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Grasberg open pit [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 206,000,000 | [1]
Average ore grade of copper per metric ton | 0.95% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 1.08 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Deep Ore Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 152,000,000 | [1]
Average ore grade of copper per metric ton | 0.56% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.73 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Big Gossan [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 54,000,000 | [1]
Average ore grade of copper per metric ton | 2.22% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.97 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Grasberg block cave [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 1,000,000,000 | [1]
Average ore grade of copper per metric ton | 1.02% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.78 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Kucing Liar [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 420,000,000 | [1]
Average ore grade of copper per metric ton | 1.24% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 1.07 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Deep Mill Level Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 526,000,000 | [1]
Average ore grade of copper per metric ton | 0.83% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.70 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Africa [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tenke Fungurume [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Amount of ore reserves (in metric tons of ore) | 113,000,000 | [1]
Average ore grade of copper per metric ton | 3.34% | [1]
Average ore grade of gold per metric ton (in grams per metric ton) | 0.00 | [1]
Average ore grade of molybdenum per metric ton | 0.00% | [1]
Copper (pounds) [Member] | Total 100% basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 128,000,000,000 | [3]
Copper (pounds) [Member] | Consolidated Basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 111,200,000,000 | [3],[4]
Copper (pounds) [Member] | Net Equity Interest [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 88,600,000,000 | [3],[5]
Copper (pounds) [Member] | North America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 36,200,000,000 | [6]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Morenci [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 14,600,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Bagdad [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 7,900,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Safford [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,200,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Sierrita [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 11,000,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tyrone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 500,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Chino [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 2,600,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Miami [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 200,000,000 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Henderson [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Climax [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Copper (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Undeveloped [Member] | Cobre [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 300,000,000 | [3]
Copper (pounds) [Member] | South America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 37,000,000,000 | [6]
Copper (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Cerro Verde [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 29,400,000,000 | [3]
Copper (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | El Abra [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 3,600,000,000 | [3]
Copper (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Candelaria [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 3,900,000,000 | [3]
Copper (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Ojos del Salado [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 100,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 30,000,000,000 | [6]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Grasberg open pit [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 3,600,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Deep Ore Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,600,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Big Gossan [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 2,500,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Grasberg block cave [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 18,900,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Kucing Liar [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 9,800,000,000 | [3]
Copper (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Deep Mill Level Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 8,300,000,000 | [3]
Copper (pounds) [Member] | Africa [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 8,000,000,000 | [6]
Copper (pounds) [Member] | Africa [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tenke Fungurume [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 8,000,000,000 | [3]
Gold (ounces) [Member] | Total 100% basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 43,100,000 | [3]
Gold (ounces) [Member] | Consolidated Basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 31,300,000 | [3],[4]
Gold (ounces) [Member] | Net Equity Interest [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 28,300,000 | [3],[5]
Gold (ounces) [Member] | North America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 400,000 |
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Morenci [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Bagdad [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 100,000 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Safford [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Sierrita [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 100,000 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tyrone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Chino [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 200,000 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Miami [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Henderson [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Climax [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | North America [Member] | Total 100% basis [Member] | Undeveloped [Member] | Cobre [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | South America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,100,000 |
Gold (ounces) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Cerro Verde [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | El Abra [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Gold (ounces) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Candelaria [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,100,000 | [3]
Gold (ounces) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Ojos del Salado [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [2],[3]
Gold (ounces) [Member] | Indonesia [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 29,800,000 |
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Grasberg open pit [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 5,800,000 | [3]
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Deep Ore Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 2,800,000 | [3]
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Big Gossan [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,100,000 | [3]
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Grasberg block cave [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 16,100,000 | [3]
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Kucing Liar [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 6,500,000 | [3]
Gold (ounces) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Deep Mill Level Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 9,300,000 | [3]
Gold (ounces) [Member] | Africa [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 |
Gold (ounces) [Member] | Africa [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tenke Fungurume [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Total 100% basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 3,280,000,000 | [3]
Molybdenum (pounds) [Member] | Consolidated Basis [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 3,260,000,000 | [3],[4]
Molybdenum (pounds) [Member] | Net Equity Interest [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 2,930,000,000 | [3],[5]
Molybdenum (pounds) [Member] | North America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 2,550,000,000 |
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Morenci [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 150,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Bagdad [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 390,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Safford [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Sierrita [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 1,080,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tyrone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Chino [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 10,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Miami [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Henderson [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 330,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Climax [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 610,000,000 | [3]
Molybdenum (pounds) [Member] | North America [Member] | Total 100% basis [Member] | Undeveloped [Member] | Cobre [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | South America [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 710,000,000 |
Molybdenum (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Cerro Verde [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 710,000,000 | [3]
Molybdenum (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | El Abra [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Candelaria [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | South America [Member] | Total 100% basis [Member] | Developed and producing [Member] | Ojos del Salado [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 |
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Grasberg open pit [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Deep Ore Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Developed and producing [Member] | Big Gossan [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Grasberg block cave [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Kucing Liar [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Indonesia [Member] | Total 100% basis [Member] | Undeveloped [Member] | Deep Mill Level Zone [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
Molybdenum (pounds) [Member] | Africa [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 |
Molybdenum (pounds) [Member] | Africa [Member] | Total 100% basis [Member] | Developed and producing [Member] | Tenke Fungurume [Member] |  |
Ore, average ore grades and recoverable proven and probable reserves [Line Items] |  |
Estimated Recoverable Proven And Probable Copper Reserves | 0 | [3]
[1] | Excludes material contained in stockpiles.
[2] | Amounts not shown because of rounding.
[3] | Included estimated recoverable metals contained in stockpiles.
[4] | Consolidated reserves represented estimated metal quantities after reduction for joint venture partner interests at the Morenci mine in North America and the Grasberg minerals district in Indonesia.
[5] | Net equity interest reserves represented estimated consolidated metal quantities further reduced for noncontrolling interest ownership.
[6] | Consolidated recoverable copper reserves included 3.3 billion pounds in leach stockpiles and 1.4 billion pounds in mill stockpiles.

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