Note 4 - Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 4 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Tax Holiday, Percent	0.40%	1.40%	0.40%	1.30%
Low Or No Tax Cost [Member]
Note 4 - Income Taxes (Details) [Line Items]
Undistributed Earnings of Foreign Subsidiaries (in Dollars)	$ 6		$ 6
Korean Withholding Tax [Member]
Note 4 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment for Equity Investment Dividend (in Dollars)				$ 102
Foreign Tax Authority [Member]
Note 4 - Income Taxes (Details) [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (in Dollars)		$ 135		$ 146