Note 19 - Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Long-term Debt, Fair Value	$ 652		$ 652		$ 592
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative Asset, Notional Amount	347		347		$ 384
Designated as Hedging Instrument [Member]
Derivatives Hedging Instruments	$ 0	$ 0	$ 0	$ 0