Note 9 - Investments (Tables)

6 Months Ended

Jun. 30, 2013

Note 9 - Investments (Tables) [Line Items]

Equity Method Investments [Table Text Block]

	Ownership interest (1)			June 30, 2013		December 31, 2012
Affiliated companies accounted for by the equity method
Samsung Corning Precision Materials Co., Ltd.		50%		$	3,224	$	3,346
Dow Corning Corporation		50%			1,204		1,191
All other	20%	to	50%		363		375
					4,791		4,912
Other investments					18		3
Total				$	4,809	$	4,915

Schedule of Related Party Information for Investments in Affiliates [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2013		2012		2013		2012
Related Party Transactions:
Corning sales to affiliated companies	$	3	$	15	$	6	$	28
Corning purchases from affiliated companies	$	68	$	50	$	137	$	68
Corning transfers of assets, at cost, to affiliated companies	$	7	$	16	$	13	$	25
Dividends received from affiliated companies	$	21	$	3	$	182	$	521
Royalty income from affiliated companies	$	14	$	22	$	30	$	44
Corning services to affiliates			$	6	$	2	$	16

Samsung Corning Precision Materials Co., Ltd. [Member]

Note 9 - Investments (Tables) [Line Items]

Schedule of Affiliate Result of Operations [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2013		2012		2013		2012
Statement of Operations:
Net sales	$	592	$	785	$	1,250	$	1,569
Gross profit	$	350	$	540	$	748	$	1,064
Net income attributable to Samsung Corning Precision	$	224	$	402	$	496	$	773
Corning’s equity in earnings of Samsung Corning Precision	$	111	$	193	$	244	$	376
Related Party Transactions:
Corning purchases from Samsung Corning Precision	$	63	$	42	$	123	$	52
Dividends received from Samsung Corning Precision					$	143	$	518
Royalty income from Samsung Corning Precision	$	14	$	21	$	29	$	43
Corning transfers of machinery and equipment to Samsung Corning Precision at cost (1)	$	7	$	16	$	13	$	25

Dow Corning Corporation [Member]

Note 9 - Investments (Tables) [Line Items]

Schedule of Affiliate Result of Operations [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2013		2012		2013		2012
Statement of Operations:
Net sales	$	1,430	$	1,571	$	2,694	$	3,093
Gross profit (1)	$	385	$	395	$	602	$	732
Net income attributable to Dow Corning	$	87	$	121	$	149	$	192
Corning’s equity in earnings of Dow Corning	$	45	$	61	$	80	$	96
Related Party Transactions:
Corning purchases from Dow Corning	$	5	$	6	$	11	$	12