Note 19 - Restructuring Costs and Other (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) Position	Dec. 31, 2018 USD ($) Position
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 16	$ 17
Restructuring and Related Cost, Number of Positions Eliminated	220	285
US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	90	130
World Excluding US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	130	155
Administrative Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	150	115
Manufacturing Service Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	65	100
Research and Development Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	5	70
Restructuring costs and other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 16	$ 17