Net Income Per Common Share Computations

The computations of net income per common share are presented in the following table.

Table 57: Net Income per Common Share



	Three Months Ended September 30,				Nine Months Ended September 30,
($ In Millions Except Per Common Share Information)	2018		2017		2018		2017
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding	222,442,797		228,010,866		224,098,656		228,751,804
Net Income	$	374.5	$	298.4	$	1,146.5	$	842.4
Less: Dividends on Preferred Stock	17.3		17.3		40.5		43.9
Net Income Applicable to Common Stock	$	357.2	$	281.1	1,106.0		798.5
Less: Earnings Allocated to Participating Securities	4.1		4.4		14.3		13.3
Earnings Allocated to Common Shares Outstanding	$	353.1	$	276.7	1,091.7		785.2
Basic Net Income Per Common Share	$	1.59	$	1.21	$	4.87	$	3.43
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding	222,442,797		228,010,866		224,098,656		228,751,804
Plus: Dilutive Effect of Share-based Compensation	1,417,217		1,302,779		1,395,979		1,437,485
Average Common and Potential Common Shares	223,860,014		229,313,645		225,494,635		230,189,289
Earnings Allocated to Common and Potential Common Shares	$	353.1	$	276.7	$	1,091.8	$	785.2
Diluted Net Income Per Common Share	$	1.58	$	1.20	4.84		3.41

Note: For the three and nine months ended September 30, 2018, there were no common stock equivalents excluded in the computation of diluted net income per share. There were no common stock equivalents excluded in the computation of diluted net income per share for the three months ended September 30, 2017. Common stock equivalents of 154,411 for the nine months ended September 30, 2017 were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive.