Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 15,629	$ 13,118	$ 12,588
Cost of sales	10,008	8,842	8,657
Gross margin	5,621	4,276	3,931
Operating expenses:
Selling, general and administrative expenses	2,122	1,931	1,843
Research, development and engineering expenses	1,110	1,089	1,076
Amortization of purchased intangibles	110	121	122
Operating income	2,279	1,135	890
Interest income	38	47	38
Interest expense	(336)	(329)	(329)
Translated earnings contract gain, net (Note 13)	150	83	161
Other (expense) income, net	(79)	(123)	56
Income before income taxes	2,052	813	816
Provision for income taxes (Note 15)	(310)	(221)	(168)
Net income	1,742	592	648
Net income attributable to non-controlling interest	(146)	(86)	(67)
Net income attributable to Corning Incorporated	$ 1,596	$ 506	$ 581
Earnings per common share available to common shareholders:
Basic (Note 17) (in dollars per share)	$ 1.87	$ 0.59	$ 0.69
Diluted (Note 17) (in dollars per share)	$ 1.83	$ 0.58	$ 0.68