Note 7 - Investments (Tables)

12 Months Ended

Dec. 31, 2015

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments [Table Text Block]

	Ownership interest (1)			December 31,
				2015		2014
Affiliated companies accounted for by the equity method
Dow Corning		50%		$	1,483	$	1,325
All other	20%	to	50%		422		452
					1,905		1,777
Other investments					70		24
Total				$	1,975	$	1,801

Schedule of Affiliate Result of Operations [Table Text Block]

	Years ended December 31,
	2015		2014		2013
Statement of operations (1)(2):
Net sales	$	6,461	$	7,124	$	8,526
Gross profit	$	1,606	$	1,701	$	2,655
Net income	$	586	$	647	$	1,135
Corning’s equity in earnings of affiliated companies	$	299	$	266	$	547
Related party transactions:
Corning sales to affiliated companies	$	30	$	13	$	13
Corning purchases from affiliated companies	$	19	$	25	$	189
Corning transfers of assets, at cost, to affiliated companies (3)					$	37
Dividends received from affiliated companies	$	143	$	130	$	629
Royalty income from affiliated companies			$	2	$	57
Corning services to affiliates					$	2

	Years ended December 31,
	2015		2014		2013
Statement of operations:
Net sales	$	5,649	$	6,221	$	5,711
Gross profit (1)	$	1,472	$	1,543	$	1,280
Net income attributable to Dow Corning	$	563	$	513	$	376
Corning’s equity in earnings of Dow Corning	$	281	$	252	$	196
Related party transactions:
Corning purchases from Dow Corning	$	15	$	15	$	22
Dividends received from Dow Corning	$	143	$	125	$	100

Schedule of Affiliate Financial Position [Table Text Block]

	December 31,
	2015		2014
Balance sheet:
Current assets	$	5,228	$	5,432
Noncurrent assets	$	6,453	$	6,864
Short-term borrowings, including current portion of long-term debt	$	6	$	7
Other current liabilities	$	1,461	$	1,630
Long-term debt	$	800	$	950
Other long-term liabilities	$	4,557	$	5,143
Non-controlling interest	$	631	$	634
Related party transactions:
Balances due from affiliated companies	$	11	$	19
Balances due to affiliated companies	$	1	$	2

	December 31,
	2015		2014
Balance sheet:
Current assets	$	4,511	$	4,712
Noncurrent assets	$	6,064	$	6,433
Short-term borrowings, including current portion of long-term debt	$	6	$	7
Other current liabilities	$	1,305	$	1,441
Long-term debt	$	785	$	945
Other long-term liabilities	$	4,539	$	5,125
Non-controlling interest	$	631	$	634