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Earnings per Share (Unaudited) Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Reconciliation of net income (loss) and weighted-average shares of common stock outstanding | Reconciliations of net income (loss) and weighted-average shares of common stock outstanding for purposes of calculating basic and diluted net income (loss) per share follow (in millions, except per share amounts):
| Three Months Ended |  | Nine Months Ended |
| September 30, |  | September 30, |
| 2017 |  | 2016 |  | 2017 |  | 2016 |
Net income (loss) from continuing operations | $ | 242 |  |  | $ | 292 |  |  | $ | 836 |  |  | $ | (4,034 | ) |
Net loss (income) from continuing operations attributable to noncontrolling interests | 35 |  |  | (37 | ) |  | (106 | ) |  | (146 | ) |
Preferred dividends on redeemable noncontrolling interest | — |  |  | (10 | ) |  | — |  |  | (31 | ) |
Undistributed earnings allocated to participating securities | (3 | ) |  | (3 | ) |  | (3 | ) |  | (3 | ) |
Net income (loss) from continuing operations attributable to common stockholders | $ | 274 |  |  | $ | 242 |  |  | $ | 727 |  |  | $ | (4,214 | ) |
Net income (loss) from discontinued operations | $ | 3 |  |  | $ | (6 | ) |  | $ | 50 |  |  | $ | (191 | ) |
Net income from discontinued operations attributable to noncontrolling interests | — |  |  | (22 | ) |  | (4 | ) |  | (44 | ) |
Net income (loss) from discontinued operations attributable to common stockholders | $ | 3 |  |  | $ | (28 | ) |  | $ | 46 |  |  | $ | (235 | ) |
Net income (loss) attributable to common stockholders | $ | 277 |  |  | $ | 214 |  |  | $ | 773 |  |  | $ | (4,449 | ) |
Basic weighted-average shares of common stock outstanding | 1,448 |  |  | 1,346 |  |  | 1,447 |  |  | 1,289 |  |
Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units | 6 |  |  | 5 |  |  | 6 |  |  | — |  | a
Diluted weighted-average shares of common stock outstanding | 1,454 |  |  | 1,351 |  |  | 1,453 |  |  | 1,289 |  |
Basic and diluted net income (loss) per share attributable to common stockholders: |  |  |  |  |  |  |  |
Continuing operations | $ | 0.19 |  |  | $ | 0.18 |  |  | $ | 0.50 |  |  | $ | (3.27 | ) |
Discontinued operations | — |  |  | (0.02 | ) |  | 0.03 |  |  | (0.18 | ) |
| $ | 0.19 |  |  | $ | 0.16 |  |  | $ | 0.53 |  |  | $ | (3.45 | ) |
a. | Excludes 12 million shares of common stock for the first nine months of 2016 associated with outstanding stock options with exercise prices less than the average market price of FCX’s common stock and restricted stock units that were anti-dilutive.

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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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