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Note 19 - Financial Instruments (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]          
Long-term Debt, Fair Value $ 650   $ 650   $ 586
Receivables, Net [Member]          
Fair value of foreign currency forward contracts asset gross 4   4    
Other Current Liabilities [Member]          
Fair value of foreign currency forward contracts liability gross 8   8    
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]          
Derivative Asset, Notional Amount 393   393   $ 384
Designated as Hedging Instrument [Member]          
Derivatives Hedging Instruments $ 0 $ 0 $ 0 $ 0