Note 4 - Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Property Plant And Equipment [Abstract]
Land		$ 55	$ 67
Buildings and building improvements		131	144
Machinery and equipment		388	382
Construction in progress		8	11
Property, plant and equipment, gross		582	604
Accumulated depreciation		(430)	(423)
Property, plant and equipment, net	[1]	$ 152	$ 181

[1] Long-lived assets are comprised of property, plant and equipment, net.