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Note 1 - Summary of Significant Accounting Policies (Details) $ in Millions			3 Months Ended	12 Months Ended
	Jan. 15, 2014	Jan. 15, 2014	Dec. 31, 2013	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Nov. 30, 2013
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Equity Method Investment Ownership Percentage Minimum				20.00%
Equity Method Investment Ownership Percentage Maximum				50.00%
Minimum Voting Securities Owned				20.00%
Minority Interests of Shareholders Acquired, Number of Shareholders			3
Research and Development Expense				$ 638	$ 701	$ 613
Foreign Currency Transaction Gain (Loss), before Tax				(22)	(60)	(190)
Interest Costs Capitalized				$ 35	$ 40	$ 35
Benchmark Percentage of Benefit Obligation or Market Related Value of Plan Assets				10.00%
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Equity Method Investment, Ownership Percentage			57.50%			57.50%	50.00%
Sale of Stock, Percentage of Ownership after Transaction	100.00%	100.00%
Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life				4 years
Minimum [Member] | Building [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life				10 years
Minimum [Member] | Equipment [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life				2 years
Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Finite-Lived Intangible Asset, Useful Life				50 years
Maximum [Member] | Building [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life				40 years
Maximum [Member] | Equipment [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life				20 years

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