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EARNINGS PER COMMON SHARE (Tables) | 3 Months Ended
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Mar. 31, 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 March 31,
| 2018 |  | 2017 |
(number of common shares in millions) |  |  |  |
Weighted average shares outstanding | 1,685 |  | 1,177 |
Effect of dilutive options | 4 |  | 10 |
Diluted weighted average shares outstanding | 1,689 |  | 1,187 |

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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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