Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The effect of dilutive securities on the weighted average common shares outstanding included in the calculation of earnings per diluted common share for the three months ended March 31, 2020 and 2019 were as follows:

	Three Months Ended March 31
(number of shares in millions)	2020	2019
Weighted average common shares outstanding	236.5	236.7
Effect of dilutive securities:
Stock options	0.5	0.7
Other stock compensation plans	0.7	0.6
Potentially dilutive common shares	1.2	1.3
Adjusted weighted average common shares outstanding	237.7	238.0
Dividends per common share	$0.51	$0.48