Note 14 - Reportable Segments - Reconciliation of Reportable Segments and All Other Net Sales to Consolidated Net Sales (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Consolidated net sales		$ 3,173	$ 3,488	$ 9,594	$ 10,783
Hemlock and Emerging Growth Businesses [Member]
Net sales of reportable segments		327	407	1,090	1,200
Display Technologies [Member]
Impact of constant currency reporting (1)	[1]	(286)	(178)	(714)	(389)
Operating Segments [Member]
Net sales of reportable segments		3,459	3,666	10,308	11,172
Operating Segments [Member] | Reportable Segments [Member]
Net sales of reportable segments		$ 3,132	$ 3,259	$ 9,218	$ 9,972

[1] This amount primarily represents the impact of foreign currency adjustments in the Display Technologies segment.