Net Income per Common Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Computations of Net Income per Common Share

The computations of net income per common share are presented below.

TABLE 102: NET INCOME PER COMMON SHARE

	FOR THE YEAR ENDED DECEMBER 31,
($ In Millions Except Per Common Share Information)	2019		2018		2017
BASIC NET INCOME PER COMMON SHARE
Average Number of Common Shares Outstanding	214,525,547		223,148,335		228,257,664
Net Income	$	1,492.2	$	1,556.4	$	1,199.0
Less: Dividends on Preferred Stock	46.4		46.4		49.8
Net Income Applicable to Common Stock	1,445.8		1,510.0		1,149.2
Less: Earnings Allocated to Participating Securities	16.9		20.1		18.8
Earnings Allocated to Common Shares Outstanding	$	1,428.9	$	1,489.9	$	1,130.4
Basic Net Income Per Common Share	6.66		6.68		4.95
DILUTED NET INCOME PER COMMON SHARE
Average Number of Common Shares Outstanding	214,525,547		223,148,335		228,257,664
Plus Dilutive Effect of Share-based Compensation	1,075,602		1,339,991		1,396,737
Average Common and Potential Common Shares	215,601,149		224,488,326		229,654,401
Earnings Allocated to Common and Potential Common Shares	$	1,428.9	$	1,490.0	$	1,130.5
Diluted Net Income Per Common Share	6.63		6.64		4.92

Note: For the years ended December 31, 2019 and, 2018 there were no common stock equivalents excluded in the computation of diluted net income per share. Common stock equivalents of 115,491 for the year ended December 31, 2017 were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive.