Note 2 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net sales	$ 3,178	$ 3,680
Telecommunication Products [Member]
Net sales	1,125	1,198
Display Products [Member]
Net sales	609	906
Specialty Glass Products [Member]
Net sales	404	493
Environmental Substrate and Filter Products [Member]
Net sales	407	401
Life Science Products [Member]
Net sales	247	307
Polycrystalline Silicon [Member]
Net sales	277	282
Product and Service, Other [Member]
Net sales	$ 109	$ 93