Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2024	Apr. 25, 2024
Document Information [Line Items]
Entity Central Index Key	0000024741
Entity Registrant Name	CORNING INC /NY
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2024
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	1-3247
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	16-0393470
Entity Address, Address Line One	One Riverfront Plaza
Entity Address, City or Town	Corning
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14831
City Area Code	607
Local Phone Number	974-9000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		856,619,222
The 4.125% Notes Due 2031 [Member]
Document Information [Line Items]
Title of 12(b) Security	4.125% Notes due 2031
Trading Symbol	GLW31
Security Exchange Name	NYSE
The 3.875% Notes Due 2026 [Member]
Document Information [Line Items]
Title of 12(b) Security	3.875% Notes due 2026
Trading Symbol	GLW26
Security Exchange Name	NYSE
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.50 par value per share
Trading Symbol	GLW
Security Exchange Name	NYSE