Note 7 - Investments (Tables)

12 Months Ended

Dec. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments [Table Text Block]

	Ownership interest (1)			December 31,
				2014		2013
Affiliated companies accounted for by the equity method
Samsung Corning Precision Materials (2)						$	3,709
Dow Corning		50%		$	1,325		1,420
All other	20%	to	50%		452		390
					1,777		5,519
Other investments					24		18
Total				$	1,801	$	5,537

Schedule of Affiliate Result of Operations [Table Text Block]

	Years ended December 31,
	2014		2013		2012
Statement of operations (1)(2):
Net sales	$	7,124	$	8,526	$	9,957
Gross profit	$	1,701	$	2,655	$	3,628
Net income	$	647	$	1,135	$	1,541
Corning’s equity in earnings of affiliated companies	$	266	$	547	$	810
Related party transactions:
Corning sales to affiliated companies	$	13	$	13	$	50
Corning purchases from affiliated companies	$	25	$	189	$	167
Corning transfers of assets, at cost, to affiliated companies (3)	$		$	37	$	55
Dividends received from affiliated companies	$	130	$	629	$	1,089
Royalty income from affiliated companies	$	2	$	57	$	84
Corning services to affiliates			$	2	$	24

	Years ended December 31,
	2014		2013		2012
Statement of operations:
Net sales	$	6,221	$	5,711	$	6,119
Gross profit (1)	$	1,543	$	1,280	$	1,413
Net income attributable to Dow Corning	$	513	$	376	$	181
Corning’s equity in earnings of Dow Corning	$	252	$	196	$	90
Related party transactions:
Corning purchases from Dow Corning	$	15	$	22	$	23
Dividends received from Dow Corning	$	125	$	100	$	100

Schedule of Affiliate Financial Position [Table Text Block]

	December 31,
	2014		2013
Balance sheet (1)(2):
Current assets	$	5,432	$	8,416
Noncurrent assets	$	6,864	$	12,220
Short-term borrowings, including current portion of long-term debt	$	7	$	79
Other current liabilities	$	1,630	$	1,886
Long-term debt	$	950	$	937
Other long-term liabilities	$	5,143	$	6,502
Non-controlling interest	$	634	$	619
Related party transactions:
Balances due from affiliated companies	$	19	$	45
Balances due to affiliated companies	$	2	$	5

	December 31,
	2014		2013
Balance sheet:
Current assets	$	4,712	$	3,996
Noncurrent assets	$	6,433	$	8,306
Short-term borrowings, including current portion of long-term debt	$	7	$	79
Other current liabilities	$	1,441	$	1,267
Long-term debt	$	945	$	937
Other long-term liabilities	$	5,125	$	6,240
Non-controlling interest	$	634	$	606