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Net Income Per Common Share
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Net Income Per Common Share Net Income Per Common Share
The computations of net income per common share are presented in the following table.
TABLE 66: NET INCOME PER COMMON SHARE
THREE MONTHS ENDED SEPTEMBER 30,NINE MONTHS ENDED SEPTEMBER 30,
($ In Millions Except Per Common Share Information)2023202220232022
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding207,021,554 208,400,135 207,611,420 208,271,070 
Net Income$327.8 $394.8 $994.2 $1,180.3 
Less: Dividends on Preferred Stock16.2 16.2 37.1 37.1 
Net Income Applicable to Common Stock311.6 378.6 957.1 1,143.2 
Less: Earnings Allocated to Participating Securities3.1 3.2 9.7 9.5 
Earnings Allocated to Common Shares Outstanding308.5 375.4 947.4 1,133.7 
Basic Net Income Per Common Share$1.49 $1.80 $4.56 $5.44 
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding207,021,554 208,400,135 207,611,420 208,271,070 
Plus: Dilutive Effect of Share-based Compensation231,438 488,437 316,300 587,906 
Average Common and Potential Common Shares207,252,992 208,888,572 207,927,720 208,858,976 
Earnings Allocated to Common and Potential Common Shares$308.5 $375.4 $947.3 $1,133.7 
Diluted Net Income Per Common Share1.49 1.80 4.56 5.43 
Note:    Common stock equivalents of 48,596 and 129,239 for the three and nine months ended September 30, 2023, respectively, were not included in the computation of diluted net income per common share because their inclusion would have been antidilutive. For the three and nine months ended September 30, 2022, there were no common stock equivalents excluded in the computation of diluted net income per share.