Note 8 - Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Goodwill [Table Text Block]

	Optical Communications			Display Technologies			Specialty Materials		Life Sciences			Hemlock and Emerging Growth Businesses			Total
Balance as of December 31, 2021	$	915		$	125		$	150	$	616		$	615		$	2,421
Acquired goodwill		4						1								5
Foreign currency translation adjustment and other		(14	)		(4	)				(10	)		(4	)		(32	)
Balance as of December 31, 2022	$	905		$	121		$	151	$	606		$	611		$	2,394
Foreign currency translation adjustment and other		(1	)		(2	)				1			(12	)		(14	)
Balance as of December 31, 2023	$	904		$	119		$	151	$	607		$	599		$	2,380

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31,
	2023						2022
	Gross		Accumulated amortization		Net		Gross		Accumulated amortization		Net
Amortized intangible assets:
Patents, trademarks & trade names	$	493	$	318	$	175	$	496	$	300	$	196
Customer lists and other (1)		1,464		734		730		1,461		628		833
Other intangible assets, net	$	1,957	$	1,052	$	905	$	1,957	$	928	$	1,029