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Earnings Per Share (Unaudited) (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Reconciliation of net income and weighted-average shares of common stock outstanding | The following table sets forth the computation of basic and diluted net income per share (in millions, except per share amounts):
| Three Months Ended |  | Six Months Ended |
| June 30, |  | June 30, |
| 2014 |  | 2013 |  | 2014 |  | 2013 |
Net income | $ | 660 |  |  | $ | 610 |  |  | $ | 1,286 |  |  | $ | 1,434 |  |
Net income attributable to noncontrolling interests | (168 | ) |  | (125 | ) |  | (274 | ) |  | (301 | ) |
Preferred dividends on redeemable noncontrolling interest | (10 | ) |  | (3 | ) |  | (20 | ) |  | (3 | ) |
Undistributed earnings allocable to participating securities | (2 | ) |  | — |  |  | (3 | ) |  | — |  |
Net income allocable to FCX common stockholders | $ | 480 |  |  | $ | 482 |  |  | $ | 989 |  |  | $ | 1,130 |  |
Basic weighted-average shares of common stock outstanding | 1,039 |  |  | 980 |  |  | 1,039 |  |  | 965 |  |
Add shares issuable upon exercise or vesting of dilutive stock options and RSUs | 6 |  | a | 4 |  |  | 6 |  | a | 3 |  |
Diluted weighted-average shares of common stock outstanding | 1,045 |  |  | 984 |  |  | 1,045 |  |  | 968 |  |
Basic net income per share attributable to FCX common stockholders | $ | 0.46 |  |  | $ | 0.49 |  |  | $ | 0.95 |  |  | $ | 1.17 |  |
Diluted net income per share attributable to FCX common stockholders | $ | 0.46 |  |  | $ | 0.49 |  |  | $ | 0.95 |  |  | $ | 1.17 |  |
a. | Excluded shares of common stock associated with outstanding stock options with exercise prices less than the average market price of FCX's common stock that were anti-dilutive totaled approximately 3 million for both second-quarter 2014 and for the six months ended June 30, 2014.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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