Note 15 - Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	Jan. 19, 2016	Jan. 15, 2014	Mar. 31, 2016	Dec. 31, 2015	Oct. 28, 2015	Oct. 26, 2015	Jul. 15, 2015
Note 15 - Shareholders' Equity (Details) [Line Items]
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)			$ 100	$ 100
July 15, 2015 [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Stock Repurchase Program, Authorized Amount							$ 2,000
Oct. 26, 2015 [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Stock Repurchase Program, Authorized Amount						$ 4,000
The 2015 Repurchase Program [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Treasury Stock, Shares, Acquired (in Shares)			39,800,000
Treasury Stock, Value, Acquired, Cost Method			$ 751
Common Stock [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)		50,000
Morgan Stanley [Member] | Oct. 28, 2015 [Member]
Note 15 - Shareholders' Equity (Details) [Line Items]
Stock Repurchase Program, Authorized Amount					$ 1,250
Treasury Stock, Shares, Acquired (in Shares)	15,900,000
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
Share Price (in Dollars per share)		$ 1,000,000
Stock Issued During Period, Value, Acquisitions		$ 2,300