Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net sales	$ 3,173	$ 3,488	$ 9,594	$ 10,783
Cost of sales	2,169	2,426	6,574	7,192
Gross margin	1,004	1,062	3,020	3,591
Operating expenses:
Selling, general and administrative expenses	468	461	1,329	1,381
Research, development and engineering expenses	270	278	787	766
Amortization of purchased intangibles	30	31	92	92
Operating income	236	292	812	1,352
Interest income	10	3	25	9
Interest expense	(82)	(73)	(239)	(216)
Translated earnings contract gain (loss), net (Note 10)	20	(68)	128	257
Other income, net	33	106	128	391
Income before income taxes	217	260	854	1,793
Provision for income taxes (Note 3)	(35)	(34)	(178)	(380)
Net income	182	226	676	1,413
Net income attributable to non-controlling interest	(18)	(18)	(55)	(61)
Net income attributable to Corning Incorporated	$ 164	$ 208	$ 621	$ 1,352
Earnings per common share available to common shareholders:
Basic (Note 4) (in dollars per share)	$ 0.19	$ 0.25	$ 0.73	$ 1.60
Diluted (Note 4) (in dollars per share)	$ 0.19	$ 0.24	$ 0.72	$ 1.58