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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
10. Earnings Per Share |
Computation of basic and diluted earnings per share |
The following table reconciles the computation of basic and diluted earnings per share:
For the |  | Year ended December 31
millions of Canadian dollars (except per share amounts) |  | 2019 |  | 2018
Numerator |  |  |  |
Net income attributable to common shareholders | $ | 662.8 | $ | 709.6
Diluted numerator |  | 662.8 |  | 709.6
Denominator |  |  |  |
Weighted average shares of common stock outstanding |  | 238.5 |  | 231.7
Weighted average deferred share units outstanding |  | 1.4 |  | 1.3
Weighted average shares of common stock outstanding – basic |  | 239.9 |  | 233.0
Stock-based compensation |  | 0.6 |  | 0.4
Convertible Debentures |  | - |  | 0.1
Weighted average shares of common stock outstanding – diluted |  | 240.5 |  | 233.5
Earnings per common share |  |  |  |
Basic | $ | 2.76 | $ | 3.05
Diluted | $ | 2.76 | $ | 3.04

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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