Note 16 - Restructuring Liabilities (Details Textual) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2019 USD ($) Position	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2019 USD ($) Position
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 3		$ 2
Restructuring and Related Cost, Number of Positions Eliminated	25			100
United States and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	10			50
World Excluding US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	15			50
Manufacturing Service Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	10			30
Administrative and Sales Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	15			70
Restructuring costs and other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 3			$ 7
Discontinued Operations [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $		$ 1		$ 1