Note 17 - Reportable Segments -Selected Financial Information On Product Lines and Reportable Segments (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net sales		$ 12,588	$ 14,189	$ 14,082
Polycrystalline Silicon [Member]
Net sales		1,014	1,191	892
Operating Segments [Member]
Net sales of reportable segments and All Other	[1]	13,580	14,805	14,120
Impact of constant currency reporting	[2]	(992)	(616)	(38)
Net sales		12,588	14,189	14,082
Operating Segments [Member] | Optical Communications [Member]
Net sales of reportable segments and All Other		4,012	5,023	4,349
Operating Segments [Member] | Optical Communications [Member] | Carrier Network [Member]
Net sales of reportable segments and All Other		2,871	3,760	3,200
Operating Segments [Member] | Optical Communications [Member] | Enterprise Network [Member]
Net sales of reportable segments and All Other		1,141	1,263	1,149
Operating Segments [Member] | Display Technologies [Member]
Net sales of reportable segments and All Other		3,532	3,306	3,700
Operating Segments [Member] | Specialty Materials [Member]
Net sales of reportable segments and All Other		1,865	2,002	2,008
Operating Segments [Member] | Specialty Materials [Member] | Corning Gorilla Glass [Member]
Net sales of reportable segments and All Other		1,136	1,331	1,403
Operating Segments [Member] | Specialty Materials [Member] | Advanced Optics and Other Specially Glass [Member]
Net sales of reportable segments and All Other		729	671	605
Operating Segments [Member] | Environmental Technologies [Member]
Net sales of reportable segments and All Other		1,766	1,584	1,586
Operating Segments [Member] | Environmental Technologies [Member] | Automotive And Other [Member]
Net sales of reportable segments and All Other		1,123	934	936
Operating Segments [Member] | Environmental Technologies [Member] | Diesel [Member]
Net sales of reportable segments and All Other		643	650	650
Operating Segments [Member] | Life Science Products [Member]
Net sales of reportable segments and All Other		959	1,228	1,234
Operating Segments [Member] | Life Science Products [Member] | Labware [Member]
Net sales of reportable segments and All Other		487	657	671
Operating Segments [Member] | Life Science Products [Member] | Cell Culture Products [Member]
Net sales of reportable segments and All Other		472	571	563
Operating Segments [Member] | Hemlock and Emerging Growth Businesses [Member]
Net sales of reportable segments and All Other		1,446	1,662	1,243
Operating Segments [Member] | Hemlock and Emerging Growth Businesses [Member] | Polycrystalline Silicon [Member]
Net sales of reportable segments and All Other		1,014	1,191	892
Operating Segments [Member] | Hemlock and Emerging Growth Businesses [Member] | Other [Member]
Net sales of reportable segments and All Other		432	471	351
Operating Segments [Member] | Reportable Segments [Member]
Net sales of reportable segments and All Other		$ 12,134	$ 13,143	$ 12,877

[1] Net sales are attributed to countries based on location of customer.

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