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Common Stock (Tables) | 12 Months Ended
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Dec. 31, 2019
Common Stock |
Common Stock |
Authorized: Unlimited number of non-par value common shares. |  |  |  |  |  |
| 2019 |  | 2018
Issued and outstanding: | millions of shares | millions of Canadian dollars |  | millions of shares | millions of Canadian dollars
Balance, December 31, 2018 | 234.12 | $ | 5,816 |  | 228.77 | $ | 5,601
Conversion of Convertible Debentures | 0.03 |  | 1 |  | 0.01 |  | -
Issuance of common stock (1) | 1.77 |  | 99 |  | 0.45 |  | 22
Issued under Purchase Plans at market rate | 3.99 |  | 202 |  | 4.87 |  | 200
Discount on shares purchased under Dividend Reinvestment Plan | - |  | (7) |  | - |  | (9)
Options exercised under senior management share option plan | 2.57 |  | 104 |  | 0.02 |  | 1
Employee Share Purchase Plan | - |  | 1 |  | - |  | 1
Balance, December 31, 2019 | 242.48 | $ | 6,216 |  | 234.12 | $ | 5,816
(1) As at December 31, 2019 a total of 1.77 million common shares have been issued through Emera's at-the-market equity program ("ATM Program") at an average price of $56.56 per share for gross proceeds of $100 million ($98.7 million net of issuance costs).

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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