Note 3 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net sales		$ 12,588	$ 14,189	$ 14,082
Telecommunication Products [Member]
Net sales		4,012	5,023	4,349
Display Products [Member]
Net sales		2,694	2,829	3,666
Specialty Glass Products [Member]
Net sales		1,854	1,996	2,008
Environmental Substrate and Filter Products [Member]
Net sales		1,660	1,492	1,584
Life Science Products [Member]
Net sales		922	1,187	1,232
Polycrystalline Silicon [Member]
Net sales		1,014	1,191	892
Product and Service, Other [Member]
Net sales	[1]	$ 432	$ 471	$ 351

[1] Corning obtained a controlling interest in HSG during the third quarter of 2020 and has consolidated results in Hemlock and Emerging Growth Businesses beginning on September 9, 2020. Refer to Note 3 (HSG Transactions and Acquisitions) in the notes to the consolidated financial statements for additional information.