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Note 18 - Earnings Per Common Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | 18. Earnings Per Common Share Basic earnings per common share are computed by dividing income attributable to common shareholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per common share assumes the issuance of common shares for all potentially dilutive securities outstanding. The reconciliation of the amounts used to compute basic and diluted earnings per common share from continuing operations follows (in millions, except per share amounts):
| Years ended December 31,
| 2015 |  | 2014 |  | 2013
Net income attributable to Corning Incorporated | $ | 1,339 |  | $ | 2,472 |  | $ | 1,961
Less: Series A convertible preferred stock dividend |  | 98 |  |  | 94 |  |  |
Net income available to common stockholders - basic |  | 1,241 |  |  | 2,378 |  |  | 1,961
Plus: Series A convertible preferred stock dividend |  | 98 |  |  | 94 |  |  |
Net income available to common stockholders - diluted | $ | 1,339 |  | $ | 2,472 |  | $ | 1,961
Weighted-average common shares outstanding - basic |  | 1,219 |  |  | 1,305 |  |  | 1,452
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options and other dilutive securities |  | 9 |  |  | 12 |  |  | 10
Series A convertible preferred stock |  | 115 |  |  | 110 |  |  |
Weighted-average common shares outstanding - diluted |  | 1,343 |  |  | 1,427 |  |  | 1,462
Basic earnings per common share | $ | 1.02 |  | $ | 1.82 |  | $ | 1.35
Diluted earnings per common share | $ | 1.00 |  | $ | 1.73 |  | $ | 1.34
Anti-dilutive potential shares excluded from diluted earnings per common share: |  |  |  |  |  |  |  |
Employee stock options and awards |  | 22 |  |  | 24 |  |  | 39
Accelerated share repurchase forward contract |  | 15 |  |  | 3 |  |  | 3
Total |  | 37 |  |  | 27 |  |  | 42

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