Note 17 - Restructuring Liabilities (Details Textual) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($) Position	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($) Position
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 1	$ 1	$ 7
Restructuring and Related Cost, Number of Positions Eliminated	40			130
US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	35			75
World Excluding US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	5			55
Manufacturing Service Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	5			25
Administrative and Sales Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	35			105
Restructuring costs and other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 1			$ 9