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Earnings per Share (Unaudited) Earnings per Share (Tables)
6 Months Ended
Jun. 30, 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 EndedSix Months Ended
June 30,June 30,
 2021202020212020
Net income (loss)$1,331 $124 $2,284 $(425)
Net income attributable to noncontrolling interests(248)(71)(483)(13)
Undistributed earnings allocated to participating securities(4)(3)(4)(3)
Net income (loss) attributable to common stockholders$1,079 $50 $1,797 $(441)
Basic weighted-average shares of common stock outstanding
1,467 1,453 1,465 1,453 
Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units (RSUs)16 15 — a
Diluted weighted-average shares of common stock outstanding
1,483 1,458 1,480 1,453 
Basic net income (loss) per share attributable to common stockholders:$0.74 $0.03 $1.23 $(0.30)
Diluted net income (loss) per share attributable to common stockholders:$0.73 $0.03 $1.21 $(0.30)
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.