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Note 15 - Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 15, 2014 | Jun. 30, 2015 | Mar. 31, 2014 | Jun. 30, 2015 | Dec. 31, 2014 | Dec. 03, 2014
Note 15 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in Dollars per share) |  | $ 100 |  | $ 100 | $ 100 |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax |  |  | $ 136 |  |  |
Dec. 3, 2014 [Member] |  |  |  |  |  |
Note 15 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |
Treasury Stock, Shares, Acquired (in Shares) |  | 29,400,000 |  | 50,500,000 |  |
Treasury Stock, Value, Acquired, Cost Method |  | $ 626 |  | $ 1,128 |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  | $ 1,500
Common Stock [Member] |  |  |  |  |  |
Note 15 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares) | 50,000 |  |  |  |  |
Convertible Preferred Stock, Series A [Member] |  |  |  |  |  |
Note 15 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in Dollars per share) | $ 100 |  |  |  |  |
Samsung Corning Precision Materials Co., Ltd. [Member] | Convertible Preferred Stock, Series A [Member] |  |  |  |  |  |
Note 15 - Shareholders' Equity (Details) [Line Items] |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in Shares) | 2,300 |  | 1,900 |  |  |
Share Price (in Dollars per share) | $ 1,000,000 |  |  |  |  |
Stock Issued During Period, Value, Acquisitions | $ 2,300 |  |  |  |  |

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