Stock Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2014

The following table provides a summary of option activity during the six months ended June 30, 2014:


	Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at December 31, 2013		8.8		$	39.47
Granted		1.1			69.60
Exercised		(0.8	)		22.20
Cancelled		(0.1	)		54.81

Outstanding at June 30, 2014		9.0		$	44.62		6.4	$	227.9

Exercisable at June 30, 2014		4.7		$	29.90		4.5	$	189.1

Information Regarding Intrinsic Value of Stock Options Exercised and Stock Compensation Expense Related to Stock Option Awards

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				Six Months Ended
	June 30, 2014		June 30, 2013		June 30, 2014		June 30, 2013
Intrinsic Value of Stock Options Exercised	$	20.9	$	14.5	$	37.2	$	25.9
Stock Compensation Expense Related to Stock Option Awards	$	9.7	$	9.8	$	11.8	$	11.4
Issued Stock Options		1.1		1.6		1.1		1.6
Weighted Average Fair Value of Stock Options issued (per share)	$	12.84	$	10.90	$	12.84	$	10.90
Fair Value of Stock Options Issued	$	14.6	$	17.3	$	14.6	$	17.3

Assumptions Used in Valuation of Issued Stock Options

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


	Three Months Ended						Six Months Ended
	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013
Risk-free interest rate		2.0	%		1.4	%		2.0	%		1.4	%
Expected life in Years		6.2			6.2			6.2			6.2
Expected volatility		20.4	%		21.2	%		20.4	%		21.2	%
Dividend Yield		1.8	%		1.8	%		1.8	%		1.8	%