Stock Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2012

The following table provides a summary of option activity during the nine months ended September 30, 2012:


	Options (In millions)			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value (In millions)
Outstanding at December 31, 2011		8.3		$	26.39
Granted		1.5			53.79
Exercised		(1.1	)		18.09
Cancelled		(0.1	)		32.56

Outstanding at September 30, 2012		8.6		$	32.31		6.3	$	186.0

Exercisable at September 30, 2012		4.7		$	23.05		4.6	$	146.4

Schedule of Share Based Compensation Stock Options Details

The following table provides information regarding the intrinsic value of stock options exercised and stock compensation expense related to stock option awards.


	Three Months Ended				Nine Months Ended
(In millions, except per share data)	September 30, 2012		September 30, 2011		September 30, 2012		September 30, 2011
Intrinsic Value of Stock Options Exercised	$	4.2	$	4.9	$	38.2	$	28.8
Stock Compensation Expense Related to Stock Option Awards	$	1.6	$	1.2	$	9.3	$	8.7
Issued Stock Options		0.0		0.0		1.5		1.1
Weighted Average Fair Value of Stock Options issued (per share)	$	9.27	$	7.93	$	8.92	$	7.86
Fair Value of Stock Options Issued	$	0.0	$	0.0	$	13.7	$	8.9

Assumptions Used in Valuation of Stock Options

The following table provides a summary of the assumptions used in the valuation of issued stock options:


	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
	2012			2011			2012			2011
Risk-free interest rate		1.0	%		2.5	%		1.0	%		2.1	%
Expected life in Years		6.2			6.3			6.3			6.2
Expected volatility		20.8	%		21.1	%		20.7	%		20.9	%
Dividend Yield		1.7	%		1.8	%		1.8	%		1.7	%