Note 19 - Restructuring Costs and Other (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) Position	Dec. 31, 2019 USD ($) Position
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 17	$ 16
Restructuring and Related Cost, Number of Positions Eliminated	250	220
US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	140	90
World Excluding US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	110	130
Administrative Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	160	150
Manufacturing Service Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	90	65
Research and Development Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated		5
Restructuring costs and other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 17	$ 16