Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Net sales	$ 9,715	[1]	$ 7,819	[1]	$ 8,012	[1]
Cost of sales	5,663		4,495		4,693
Gross margin	4,052		3,324		3,319
Operating expenses:
Selling, general and administrative expenses	1,211		1,126		1,205
Research, development and engineering expenses	815		710		769
Amortization of purchased intangibles	33		31		19
Restructuring, impairment and other charges (Note 2)	71		67		133
Asbestos litigation (credit) charges (Note 7)	(9)		19		14
Operating income	1,931		1,371		1,179
Equity in earnings of affiliated companies (Note 7)	266		547		810
Interest income	26		8		14
Interest expense	(123)		(120)		(111)
Transaction-related gain, net (Note 8)	74
Other income, net	1,394		667		83
Income before income taxes	3,568		2,473		1,975
Provision for income taxes (Note 6)	(1,096)		(512)		(339)
Net income attributable to Corning Incorporated	$ 2,472		$ 1,961		$ 1,636
Earnings per common share attributable to Corning Incorporated:
Basic (Note 18) (in Dollars per share)	$ 1.82		$ 1.35		$ 1.10
Diluted (Note 18) (in Dollars per share)	$ 1.73		$ 1.34		$ 1.09
Dividends declared per common share (in Dollars per share)	$ 0.52		$ 0.39		$ 0.32

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