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Earnings Per Share | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share | 4. Earnings Per Share (PPL) Basic EPS is computed by dividing income available to PPL common shareowners by the weighted-average number of common shares outstanding during the applicable period. Diluted EPS is computed by dividing income available to PPL common shareowners by the weighted-average number of common shares outstanding, increased by incremental shares that would be outstanding if potentially dilutive non-participating securities were converted to common shares as calculated using the Treasury Stock Method. Incremental non-participating securities that have a dilutive impact are detailed in the table below. Reconciliations of the amounts of income and shares of PPL common stock (in thousands) for the periods ended December 31, used in the EPS calculation are:
| 2017 |  | 2016 |  | 2015
Income (Numerator) |  |  |  |  |  |  |  |
Income from continuing operations after income taxes | $ | 1,128 |  |  | $ | 1,902 |  |  | $ | 1,603 |
Less amounts allocated to participating securities | 2 |  |  | 6 |  |  | 6 |
Income from continuing operations after income taxes available to PPL common shareowners - Basic and Diluted | $ | 1,126 |  |  | $ | 1,896 |  |  | $ | 1,597 |
Income (loss) from discontinued operations (net of income taxes) available to PPL common shareowners - Basic and Diluted | $ | — |  |  | $ | — |  |  | $ | (921 | )
Net income | $ | 1,128 |  |  | $ | 1,902 |  |  | $ | 682 |
Less amounts allocated to participating securities | 2 |  |  | 6 |  |  | 2 |
Net income available to PPL common shareowners - Basic and Diluted | $ | 1,126 |  |  | $ | 1,896 |  |  | $ | 680 |
| 2017 |  | 2016 |  | 2015
Shares of Common Stock (Denominator) |  |  |  |  |  |  |  |
Weighted-average shares - Basic EPS | 685,240 |  |  | 677,592 |  |  | 669,814 |
Add incremental non-participating securities: |  |  |  |  |  |  |  |
Share-based payment awards (a) | 2,094 |  |  | 2,854 |  |  | 2,772 |
Weighted-average shares - Diluted EPS | 687,334 |  |  | 680,446 |  |  | 672,586 |
Basic EPS |  |  |  |  |  |  |  |
Available to PPL common shareowners: |  |  |  |  |  |  |  |
Income from continuing operations after income taxes | $ | 1.64 |  |  | $ | 2.80 |  |  | $ | 2.38 |
Income (loss) from discontinued operations (net of income taxes) | — |  |  | — |  |  | (1.37 | )
Net Income | $ | 1.64 |  |  | $ | 2.80 |  |  | $ | 1.01 |
Diluted EPS |  |  |  |  |  |  |  |
Available to PPL common shareowners: |  |  |  |  |  |  |  |
Income from continuing operations after income taxes | $ | 1.64 |  |  | $ | 2.79 |  |  | $ | 2.37 |
Income (loss) from discontinued operations (net of income taxes) | — |  |  | — |  |  | (1.36 | )
Net Income | $ | 1.64 |  |  | $ | 2.79 |  |  | $ | 1.01 |
(a) | The Treasury Stock Method was applied to non-participating share-based payment awards.
For the year ended December 31, PPL issued common stock related to stock-based compensation plans and DRIP as follows (in thousands):
| 2017
Stock-based compensation plans (a) | 1,748 |
DRIP | 1,552 |
(a) | Includes stock options exercised, vesting of performance units, vesting of restricted stock and restricted stock units and conversion of stock units granted to directors.
See Note 7 for additional information on common stock issued under ATM Program. For the years ended December 31, the following shares (in thousands) were excluded from the computations of diluted EPS because the effect would have been antidilutive:
| 2017 |  | 2016 |  | 2015
Stock options | 696 |  |  | 696 |  |  | 1,087 |
Performance units | — |  |  | 176 |  |  | 36 |

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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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