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 June 30,				Six Months Ended June 30,
($ In Millions Except Per Common Share Information)	2018		2017		2018		2017
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding	224,207,590		229,196,531		224,940,308		229,128,414
Net Income	$	390.4	$	267.9	$	772.0	$	544.0
Less: Dividends on Preferred Stock	5.9		5.9		23.2		26.6
Net Income Applicable to Common Stock	$	384.5	$	262.0	748.8		517.4
Less: Earnings Allocated to Participating Securities	5.0		4.4		10.2		8.9
Earnings Allocated to Common Shares Outstanding	$	379.5	$	257.6	738.6		508.5
Basic Net Income Per Common Share	$	1.69	$	1.12	$	3.28	$	2.22
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding	224,207,590		229,196,531		224,940,308		229,128,414
Plus: Dilutive Effect of Share-based Compensation	1,403,807		1,441,292		1,385,184		1,505,954
Average Common and Potential Common Shares	225,611,397		230,637,823		226,325,492		230,634,368
Earnings Allocated to Common and Potential Common Shares	$	379.5	$	257.6	$	738.6	$	508.5
Diluted Net Income Per Common Share	$	1.68	$	1.12	3.26		2.21

Note: For the three and six months ended June 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 June 30, 2017. Common stock equivalents of 232,897 for the six months ended June 30, 2017 were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive.