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Earnings (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net income (loss) attributable to Corning Incorporated $ 499 $ (589)
Less: Series A convertible preferred stock dividend 24 24
Net income (loss) available to common stockholders – basic 475 (613)
Plus: Series A convertible preferred stock dividend 24  
Net income (loss) available to common stockholders – diluted $ 499 $ (613)
Weighted-average common shares outstanding - basic (in shares) 784 848
Effect of dilutive securities:    
Weighted-average common shares outstanding - diluted (in shares) 908 848
Basic earnings (loss) per common share (in dollars per share) $ 0.61 $ (0.72)
Diluted earnings (loss) per common share (in dollars per share) $ 0.55 $ (0.72)
Anti-dilutive potential shares excluded from diluted earnings per common share:    
Anti-dilutive potential shares excluded from diluted earnings (loss) per common share (in shares)   126
Stock Compensation Plan [Member]    
Effect of dilutive securities:    
Effect of dilutive securities (in shares) 9  
Anti-dilutive potential shares excluded from diluted earnings per common share:    
Anti-dilutive potential shares excluded from diluted earnings (loss) per common share (in shares)   11
Series A Convertible Preferred Stock [Member]    
Effect of dilutive securities:    
Effect of dilutive securities (in shares) 115  
Anti-dilutive potential shares excluded from diluted earnings per common share:    
Anti-dilutive potential shares excluded from diluted earnings (loss) per common share (in shares) [1]   115
[1] Three Months EndedMarch 31,2019 2018Net income (loss) attributable to Corning Incorporated$ 499$ (589)Less: Series A convertible preferred stock dividend 24 24Net income (loss) available to common stockholders - basic 475 (613)Plus: Series A convertible preferred stock dividend 24Net income (loss) available to common stockholders - diluted$ 499$ (613)Weighted-average common shares outstanding - basic 784 848Effect of dilutive securities:Employee stock options and other dilutive securities 9Series A convertible preferred stock 115Weighted-average common shares outstanding - diluted 908 848Basic earnings (loss) per common share$ 0.61$ (0.72)Diluted earnings (loss) per common share$ 0.55$ (0.72)Antidilutive potential shares excluded from diluted earnings per common share:Series A convertible preferred stock (1) 115Employee stock options and awards 11Total 126For the quarter ended March 31, 2018 the Series A preferred stock was anti-dilutive and therefore excluded from the calculation of diluted loss per share