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Earnings Per Share | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE Basic earnings per share are computed based on the weighted average number of common shares outstanding. Diluted earnings per share are calculated to reflect the potential dilution that could occur if securities or other contracts were exercised or converted into common stock. Basic and diluted earnings per common share are calculated as follows:
| Three Months Ended
| March 31,
(In millions, except per share amounts) | 2018 |  | 2017
Earnings per share — basic: |  |  |
Goodyear net income | $ | 75 |  |  | $ | 166 |
Weighted average shares outstanding | 240 |  |  | 252 |
Earnings per common share — basic | $ | 0.31 |  |  | $ | 0.66 |
Earnings per share — diluted: |  |  |
Goodyear net income | $ | 75 |  |  | $ | 166 |
Weighted average shares outstanding | 240 |  |  | 252 |
Dilutive effect of stock options and other dilutive securities | 4 |  |  | 4 |
Weighted average shares outstanding — diluted | 244 |  |  | 256 |
Earnings per common share — diluted | $ | 0.31 |  |  | $ | 0.65 |
Weighted average shares outstanding - diluted for the three months ended March 31, 2018 and 2017 both exclude approximately 1 million equivalent shares related to options with exercise prices greater than the average market price of our common shares (i.e., "underwater" options).

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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