Consolidated Statements of Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	[1]	$ 9,390,000	$ 9,111,000	$ 9,715,000
Cost of sales		5,644,000	5,458,000	5,663,000
Gross margin		3,746,000	3,653,000	4,052,000
Operating expenses:
Selling, general and administrative expenses		1,472,000	1,508,000	1,202,000
Research, development and engineering expenses		742,000	769,000	815,000
Amortization of purchased intangibles		64,000	54,000	33,000
Restructuring, impairment and other charges (Note 2)		77,000	0	71,000
Operating income		1,391,000	1,322,000	1,931,000
Equity in earnings of affiliated companies (Note 7)		284,000	299,000	266,000
Interest income		32,000	21,000	26,000
Interest expense		(159,000)	(140,000)	(123,000)
Transaction-related gain, net (Note 8)				74,000
Translated earnings contract (loss) gain, net		(448,000)	80,000	1,369,000
Gain on realignment of equity investment		2,676,000
Other (expense) income, net		(84,000)	(96,000)	25,000
Income before income taxes		3,692,000	1,486,000	3,568,000
Benefit (provision) for income taxes (Note 6)		3,000	(147,000)	(1,096,000)
Net income attributable to Corning Incorporated		$ 3,695,000	$ 1,339,000	$ 2,472,000
Earnings per common share attributable to Corning Incorporated:
Basic (Note 18) (in dollars per share)		$ 3.53	$ 1.02	$ 1.82
Diluted (Note 18) (in dollars per share)		3.23	1	1.73
Dividends declared per common share (1) (in dollars per share)	[2]	$ 0.54	$ 0.36	$ 0.52

[1] Net sales are attributed to countries based on location of customer.

[2] The first quarter 2015 dividend was declared on December 3, 2014.