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Note 16 - Financial Instruments (Details) - Financial Instruments Recorded at Fair Value - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Other Noncurrent Assets [Member]    
Marketable securities    
Long-term available-for-sale securities $ 3 $ 3
Other Current Liabilities [Member]    
Derivatives    
Short-term foreign exchange contracts 1 1
Accounts Receivable [Member]    
Derivatives    
Short-term foreign exchange contracts 4 2
Fair Value, Inputs, Level 1 [Member] | Other Noncurrent Assets [Member]    
Marketable securities    
Long-term available-for-sale securities 3 3
Fair Value, Inputs, Level 2 [Member] | Other Current Liabilities [Member]    
Derivatives    
Short-term foreign exchange contracts 1 1
Fair Value, Inputs, Level 2 [Member] | Accounts Receivable [Member]    
Derivatives    
Short-term foreign exchange contracts $ 4 $ 2