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Earnings Per Share (Unaudited) (Tables) | 3 Months Ended
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Mar. 31, 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 |
| March 31, |
| 2014 |  | 2013 |
Net income | $ | 626 |  |  | $ | 824 |  |
Net income attributable to noncontrolling interests | (106 | ) |  | (176 | ) |
Preferred dividends on redeemable noncontrolling interest | (10 | ) |  | — |  |
Undistributed earnings allocated to participating securities | (1 | ) |  | — |  |
Net income attributable to FCX common stockholders | $ | 509 |  |  | $ | 648 |  |
Basic weighted-average shares of common stock outstanding | 1,038 |  |  | 950 |  |
Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units | 6 |  | a | 3 |  |
Diluted weighted-average shares of common stock outstanding | 1,044 |  |  | 953 |  |
Basic net income per share attributable to FCX common stockholders | $ | 0.49 |  |  | $ | 0.68 |  |
Diluted net income per share attributable to FCX common stockholders | $ | 0.49 |  |  | $ | 0.68 |  |
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 two million for first-quarter 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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