Net Income Per Common Share Computations (Tables)

9 Months Ended

Sep. 30, 2014

Computations of Net Income per Common Share

The computations of net income per common share are presented in the following table.

	Three Months Ended September 30,				Nine Months Ended September 30,
($ In Millions Except Per Common Share Information)	2014		2013		2014		2013
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding		235,701,076		239,930,074		236,301,789		239,614,868
Net Income	$	204.5	$	206.5	$	567.8	$	561.6
Less: Dividends on Preferred Stock		—		—		—		—
Net Income Applicable to Common Stock		204.5		206.5		567.8		561.6
Less: Earnings Allocated to Participating Securities		3.5		3.5		9.5		9.1
Earnings Allocated to Common Shares Outstanding		201.0		203.0		558.3		552.5
Basic Net Income Per Common Share	$	0.85	$	0.85	$	2.36	$	2.31
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding		235,701,076		239,930,074		236,301,789		239,614,868
Plus: Dilutive Effect of Share-based Compensation		2,036,053		1,400,578		1,873,907		1,242,829
Average Common and Potential Common Shares		237,737,129		241,330,652		238,175,696		240,857,697
Earnings Allocated to Common and Potential
Common Shares	$	201.0	$	203.0	$	558.4	$	552.5
Diluted Net Income Per Common Share		0.84		0.84		2.34		2.29