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EARNINGS PER COMMON SHARE (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Schedule of weighted average shares outstanding used to calculate basic and diluted earnings per common share | Weighted average shares outstanding used to calculate basic and diluted earnings per share are as follows:
| Three months ended June 30, |  | Six months ended June 30,
| 2018 |  | 2017 |  |  | 2018 |  | 2017 |
(number of common shares in millions) |  |  |  |  |  |  |  |  |
Weighted average shares outstanding | 1,695 |  | 1,628 |  |  | 1,690 |  | 1,404 |
Effect of dilutive options | 3 |  | 8 |  |  | 3 |  | 9 |
Diluted weighted average shares outstanding | 1,698 |  | 1,636 |  |  | 1,693 |  | 1,413 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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