EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2021

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 six months ended June 30, 2021 and 2020 (in millions, except per share amounts):


	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Numerator:
Net income attributable to common shareowners	$	2,676	$	1,768	$	7,468	$	2,733
Denominator:
Weighted average shares	870		862		869		860

Vested portion of restricted units	5		4		5		5
Denominator for basic earnings per share	875		866		874		865
Effect of dilutive securities:
Restricted units	2		3		3		4
Stock options	1		—		1		—
Denominator for diluted earnings per share	878		869		878		869
Basic earnings per share	$	3.06	$	2.04	$	8.54	$	3.16
Diluted earnings per share	$	3.05	$	2.03	$	8.51	$	3.14

There were no antidilutive shares for the three months ended June 30, 2021. Diluted earnings per share for the three months ended June 30, 2020 excluded the effect of 1.3 million shares of common stock that may be issued upon the exercise of employee stock options because such effect would have been antidilutive. Antidilutive shares for the six months ended June 30, 2021 and 2020 were 0.1 and 1.3 million, respectively.