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Net Income per Common Share
12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Net Income per Common Share
Net Income per Common Share
The computations of net income per common share are presented below.

TABLE 81: NET INCOME PER COMMON SHARE
 
                      FOR THE YEAR ENDED DECEMBER 31,
($ In Millions Except Per Common Share Information)
2016

2015

2014

BASIC NET INCOME PER COMMON SHARE
 
 
 
Average Number of Common Shares Outstanding
227,580,584

232,279,849

235,829,790

Net Income
$
1,032.5

$
973.8

$
811.8

Less: Dividends on Preferred Stock
23.4

23.4

9.5

 
 
 
 
Net Income Applicable to Common Stock
$
1,009.1

$
950.4

$
802.3

Less: Earnings Allocated to Participating Securities
18.7

15.4

13.3

 
 
 
 
Earnings Allocated to Common Shares Outstanding
990.4

935.0

789.0

Basic Net Income Per Common Share
4.35

4.03

3.34

 
 
 
 
DILUTED NET INCOME PER COMMON SHARE
 
 
 
Average Number of Common Shares Outstanding
227,580,584

232,279,849

235,829,790

Plus Dilutive Effect of Share-based Compensation
1,570,822

1,941,880

1,890,465

 
 
 
 
Average Common and Potential Common Shares
229,151,406

234,221,729

237,720,255

 
 
 
 
Earnings Allocated to Common and Potential Common Shares
$
990.4

$
935.0

$
789.0

Diluted Net Income Per Common Share
4.32

3.99

3.32


Note: For the year ended December 31, 2016, there were no common stock equivalents excluded in the computation of diluted net income per common share. Common stock equivalents totaling 371,059, and 1,517,588 for the years ended December 31, 2015 and 2014, respectively, were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive.