Stockholders' Equity and Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2011

Notes to Financial Statements [Abstract]

Net Income Per Common Share

Net income per common share is determined as follows:

	Three Months Ended June 30				Six Months Ended June 30
	2011		2010		2011		2010
	(in millions of dollars, except share data)
Numerator
Net Income	$	229.8	$	209.7	$	455.2	$	439.5
Denominator (000s)
Weighted Average Common Shares - Basic	306,316.2		331,236.8		309,513.0		331,752.6
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	1,094.8		1,395.4		1,342.4		1,324.9
Weighted Average Common Shares - Assuming Dilution	307,411.0		332,632.2		310,855.4		333,077.5
Net Income Per Common Share
Basic	$	0.75	$	0.63	$	1.47	$	1.32
Assuming Dilution	$	0.75	$	0.63	$	1.46	$	1.32