EARNINGS PER COMMON SHARE (Tables)

3 Months Ended

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