Note 18 - Restructuring Costs and Other (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Position	Dec. 31, 2017 USD ($) Position
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 17	$ 38
Restructuring and Related Cost, Number of Positions Eliminated	285	475
Delayed severance payments | $	$ 2
US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	130	325
World Excluding US and Canada [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	155	150
Restructuring costs and other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $	$ 17	$ 31
Inventory Write-down [Member] | Cost of revenues [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs | $		$ 7
Administrative Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	115	225
Manufacturing Service Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	100	150
Research and Development Positions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	70	100