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OTHER ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2013
Other Assets [Abstract] |
Schedule of Other Assets [Table Text Block] | The components of other assets follow:
| December 31,
| 2013 |  | 2012
Legally restricted funds a | $ | 392 |  |  | $ | 163 |
Intangible assets b | 380 |  |  | 334 |
Disputed tax assessments c | 327 |  |  | 177 |
Investments: |  |  |
MMR d | — |  |  | 446 |
PT Smelting e | 71 |  |  | 89 |
Available-for-sale securities | 44 |  |  | 46 |
Other | 63 |  |  | 51 |
Long-term receivable for income tax refunds | 77 |  |  | 317 |
Loan to a DRC public electric utility | 152 |  |  | 149 |
Debt issue costs | 107 |  |  | 26 |
Loan to Gécamines (related party) | 34 |  |  | 32 |
Deferred tax assets | 2 |  |  | 220 |
Other | 149 |  |  | 139 |
Total other assets | $ | 1,798 |  |  | $ | 2,189 |
a. | Included $210 million (time deposit that secures a bank guarantee) associated with the Cerro Verde royalty dispute and $158 million for AROs related to properties in New Mexico at December 31, 2013, and $161 million for AROs related to properties in New Mexico at December 31, 2012 (refer to Note 12 for further discussion).
b. | Intangible assets were net of accumulated amortization totaling $57 million at December 31, 2013, and $71 million at December 31, 2012.
c. | Included Indonesian disputed tax assessments of $255 million at December 31, 2013, and $148 million at December 31, 2012 (refer to Note 12 for further discussion).
d. | In December 2010, FCX purchased 500,000 shares of MMR’s 5.75% Convertible Perpetual Preferred Stock for an aggregate purchase price of $500 million, which was recorded at cost and subsequently reduced by dividends. On June 3, 2013, FCX acquired MMR (refer to Note 2 for discussion of the acquisition of MMR).
e. | FCX's 25 percent ownership in PT Smelting (smelter and refinery in Gresik, Indonesia) is recorded using the equity method. Amounts were reduced by unrecognized profits on sales from PT-FI to PT Smelting totaling $58 million at December 31, 2013, and $39 million at December 31, 2012.

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- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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