The computation of basic and diluted earnings per share was as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in millions, except shares and per share amounts)	2021		2020		2021		2020

Income (loss) from continuing operations	$	978	$	(210)	$	1,911	$	741
Income from discontinued operations, net of tax	—		320		—		320
Net income	$	978	$	110	$	1,911	$	1,061








Weighted average shares outstanding - basic	1,247,563,331		1,236,528,444		1,245,552,847		1,047,338,364
Effect of dilutive securities:
Outstanding stock options and unvested stock awards	6,154,791		—		8,711,617		9,782,025


Weighted average shares outstanding - diluted	1,253,718,122		1,236,528,444		1,254,264,464		1,057,120,389

Basic earnings (loss) per share:
Continuing operations	$	0.78	$	(0.17)	$	1.53	$	0.71
Discontinued operations	—		0.26		—		0.30
Earnings per share - basic	$	0.78	$	0.09	$	1.53	$	1.01

Diluted earnings (loss) per share:
Continuing operations	$	0.78	$	(0.17)	$	1.52	$	0.70
Discontinued operations	—		0.26		—		0.30
Earnings per share - diluted	$	0.78	$	0.09	$	1.52	$	1.00

Potentially dilutive securities:
Outstanding stock options and unvested stock awards	50,873		10,234,947		26,646		443,679
SoftBank contingent consideration (1)	48,751,557		48,751,557		48,751,557		24,375,778