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Earnings per Share (Unaudited) Earnings per Share (Tables) | 3 Months Ended
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Mar. 31, 2021
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 |
|  |  | March 31, |
|  |  |  |  | 2021 |  | 2020 |
Net income (loss) |  |  |  |  | $ | 953 |  |  | $ | (549) |  |
Net (income) loss attributable to noncontrolling interests |  |  |  |  | (235) |  |  | 58 |  |
Undistributed earnings allocated to participating securities |  |  |  |  | (4) |  |  | (3) |  |
Net income (loss) attributable to common stockholders |  |  |  |  | $ | 714 |  |  | $ | (494) |  |
Basic weighted-average shares of common stock outstanding |  |  |  |  | 1,462 |  |  | 1,452 |  |
Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units (RSUs) |  |  |  |  | 15 |  |  | — |  | a
Diluted weighted-average shares of common stock outstanding |  |  |  |  | 1,477 |  |  | 1,452 |  |
Basic net income (loss) per share attributable to common stockholders: |  |  |  |  | $ | 0.49 |  |  | $ | (0.34) |  |
Diluted net income (loss) per share attributable to common stockholders: |  |  |  |  | $ | 0.48 |  |  | $ | (0.34) |  |
a.Excludes approximately 10 million shares associated with outstanding stock options with exercise prices less than the average market price of FCX’s common stock and RSUs 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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