Earnings Per Common Share (Tables)

3 Months Ended

9 Months Ended

Sep. 30, 2011

Sep. 30, 2011

Reconciliation Of Amounts Used In Basic And Diluted Earnings Per Share

	Three months ended September 30,
	2011			2010
	Net income attributable to Corning Incorporated	Weighted- average shares	Per share amount	Net income attributable to Corning Incorporated	Weighted- average shares	Per share amount
Basic earnings per common share	$811	1,569	$0.52	$785	1,557	$0.50
Effect of dilutive securities:
Stock options and other dilutive securities		19			23
Diluted earnings per common share	$811	1,588	$0.51	$785	1,580	$0.50

	Nine months ended September 30,
	2011			2010
	Net income attributable to Corning Incorporated	Weighted- average shares	Per share amount	Net income attributable to Corning Incorporated	Weighted- average shares	Per share amount
Basic earnings per common share	$2,314	1,567	$1.48	$2,514	1,558	$1.61
Effect of dilutive securities:
Stock options and other dilutive securities		22			23
Diluted earnings per common share	$2,314	1,589	$1.46	$2,514	1,581	$1.59

Stock Options [Member]

Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount

	Three months ended September 30,		Nine months ended September 30,
	2011	2010	2011	2010
Stock options and other dilutive securities excluded from the calculation of diluted earnings per common share	34	41	81	45