EARNINGS PER COMMON SHARE (Tables)

6 Months Ended

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