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Note 20 - Shareholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Sep. 03, 2013
Shareholders Equity [Line Items]      
Stock Authorized 560,000,000    
Common Stock, Shares Authorized 500,000,000    
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01  
Preferred Stock, Shares Authorized 60,000,000    
Preferred Stock, No Par Value $ 0 $ 0  
Common Stock, Shares, Outstanding 42,000,000 41,900,000  
Preferred Stock, Shares Outstanding 0 0  
Preferred Stock, Shares Issued 0 0  
Warrants Issued Fair Value     $ 24
Class of Warrant or Right, Outstanding 3,600,000    
Stock Repurchased During Period, Value $ 1 $ 1  
Treasury Stock, Shares 300,000 200,000  
Range 1 [Member] | Holders of General Unsecured and Retiree Committee Unsecured Claims [Member]      
Shareholders Equity [Line Items]      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 2,100,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 14.93    
Range 2 [Member] | Holders of General Unsecured and Retiree Committee Unsecured Claims [Member]      
Shareholders Equity [Line Items]      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 2,100,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 16.12