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EARNINGS PER COMMON SHARE (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Schedule of Weighted Average Shares Outstanding Used to Calculate Basic and Diluted Earnings Per Share
Weighted average shares outstanding used to calculate basic and diluted earnings per share are as follows:
December 31,
2019

2018

2017

(number of shares in millions)
 

 

 

Weighted average shares outstanding
2,017

1,724

1,525

Effect of dilutive options
3

3

7

Diluted weighted average shares outstanding
2,020

1,727

1,532