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Net Income Per Common Share (Tables)
3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Net Income per Common Share
The computations of net income per common share are presented in the following table.
TABLE 60: NET INCOME PER COMMON SHARE
THREE MONTHS ENDED MARCH 31,
($ In Millions Except Per Common Share Information)20222021
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding208,024,962 208,112,824 
Net Income$389.3 $375.1 
Less: Dividends on Preferred Stock16.2 16.2 
Net Income Applicable to Common Stock373.1 358.9 
Less: Earnings Allocated to Participating Securities3.1 3.7 
Earnings Allocated to Common Shares Outstanding370.0 355.2 
Basic Net Income Per Common Share$1.78 $1.71 
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding208,024,962 208,112,824 
Plus: Dilutive Effect of Share-based Compensation784,171 833,624 
Average Common and Potential Common Shares208,809,133 208,946,448 
Earnings Allocated to Common and Potential Common Shares$370.0 $355.2 
Diluted Net Income Per Common Share1.77 1.70 
Note:    For the three months ended March 31, 2022 and 2021, there were no common stock equivalents excluded in the computation of diluted net income per share.