Stockholders' Equity and Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Net Income Per Common Share

Net income per common share is determined as follows:

	Three Months Ended September 30				Nine Months Ended September 30
	2013		2012		2013		2012
	(in millions of dollars, except share data)
Numerator
Net Income	$	205.7	$	230.2	$	636.9	$	660.5
Denominator (000s)
Weighted Average Common Shares - Basic	262,945.9		278,354.4		265,932.6		284,012.8
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	1,314.1		156.6		1,161.1		478.4
Weighted Average Common Shares - Assuming Dilution	264,260.0		278,511.0		267,093.7		284,491.2
Net Income Per Common Share
Basic	$	0.78	$	0.83	$	2.39	$	2.33
Assuming Dilution	$	0.78	$	0.83	$	2.38	$	2.32

Share Repurchase Table

Common stock repurchases, which are classified as treasury stock and accounted for using the cost method, were as follows:

	Three Months Ended September 30				Nine Months Ended September 30
	2013		2012		2013		2012
	(in millions)
Shares Repurchased	2.5		5.1		9.8		18.6
Cost of Shares Repurchased (1)	$	75.0	$	100.2	$	268.5	$	400.5