Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 15, 2014
Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) [Line Items]
Interest Costs Capitalized	$ 40,000,000	$ 35,000,000	$ 74,000,000
Precious Metals	3,100,000,000	2,200,000,000
Depletion	21,000,000	20,000,000	20,000,000
Increase from Consolidation of Samsung Corning Precision Materials [Member]
Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) [Line Items]
Precious Metals	1,100,000,000
Depletion	4,000,000
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment				$ 3,595,000,000	[1]

[1] During 2014, the Company recorded total measurement period adjustments of $60 million for the Acquisition of Corning Precision Materials primarily related to accrual of contingent liabilities and employee benefit obligations.