v3.26.1
Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Class of Stock [Line Items]        
Net income attributable to Corning Incorporated $ 559 $ 469 $ 930 $ 626
Weighted-average common shares outstanding - basic (in shares) 862 855 860 855
Weighted-average common shares outstanding - diluted (in shares) 875 865 877 866
Basic earnings per common share (in dollars per share) $ 0.65 $ 0.55 $ 1.08 $ 0.73
Diluted earnings per common share (in dollars per share) $ 0.64 $ 0.54 $ 1.06 $ 0.72
Anti-dilutive potential shares excluded from diluted earnings per common share (in shares) 2 2 2 2
Stock options, awards and warrants        
Class of Stock [Line Items]        
Stock options and other awards (in shares) 13 10 17 11
Stock options, awards and warrants        
Class of Stock [Line Items]        
Anti-dilutive potential shares excluded from diluted earnings per common share (in shares) 2 2 2 2