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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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