Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE

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EARNINGS PER SHARE
 9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
EARNINGS PER SHARE EARNINGS PER SHARE
The earnings per share amounts are the same for class A and class B common shares as the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation.
The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2021 and 2020 (in millions, except per share amounts):
  Three Months Ended
September 30,		 Nine Months Ended
September 30,
2021 2020 2021 2020
Numerator:
Net income attributable to common shareowners $ 2,329 $ 1,957 $ 9,797 $ 4,690
Denominator:
Weighted average shares 870 864 869 861
Vested portion of restricted units 5 4 5 5
Denominator for basic earnings per share 875 868 874 866
Effect of dilutive securities:
Restricted units 3 4 3 4
Stock options 1 — 1 —
Denominator for diluted earnings per share 879 872 878 870
Basic earnings per share $ 2.66 $ 2.25 $ 11.21 $ 5.42
Diluted earnings per share $ 2.65 $ 2.24 $ 11.16 $ 5.39
There were no antidilutive shares for the three months ended September 30, 2021 and 2020. Diluted earnings per share for the nine months ended September 30, 2021 and 2020 excluded the effect of 0.1 and 0.8 million shares of common stock, respectively, that may be issued upon the exercise of employee stock options because such effect would have been antidilutive.