Note 16 - Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Fair Value, Inputs, Level 2 [Member]
Long-term Debt, Fair Value	$ 245		$ 269
Forward Contracts [Member]
Gross fair value of foreign currency in an asset position	0		0
Gross fair value of foreign currency in a liability position	3		0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Derivative Asset, Notional Amount	309		$ 322
Designated as Hedging Instrument [Member]
Derivatives Hedging Instruments	$ 0	$ 0