Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Common Share [Abstract]

Computation of Basic and Diluted Earnings (Loss) per Common Share

	Three months ended				Nine months ended
	September 30,				September 30,
	2020		2019		2020		2019
Net income attributable to Corning Incorporated	$	427	$	337	$	260	$	928
Less: Series A convertible preferred stock dividend		24		24		73		73
Net income available to common stockholders – basic		403		313		187		855
Plus: Series A convertible preferred stock dividend		24		24				73
Net income available to common stockholders – diluted	$	427	$	337	$	187	$	928
Weighted-average common shares outstanding – basic		760		775		760		780
Effect of dilutive securities:
Employee stock options and other dilutive securities		14		7		8		8
Series A convertible preferred stock (1)		115		115				115
Weighted-average common shares outstanding – diluted		889		897		768		903
Basic earnings per common share	$	0.53	$	0.40	$	0.25	$	1.10
Diluted earnings per common share	$	0.48	$	0.38	$	0.24	$	1.03
Anti-dilutive potential shares excluded from ‎  diluted earnings per common share:
Series A convertible preferred stock (1)						115
Employee stock options and awards		3		2		7		2
Total		3		2		122		2

(1)For the nine months ended September 30, 2020, the Series A preferred stock was anti-dilutive; therefore, it was excluded from the calculation of diluted earnings per share.