Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Share-based Compensation [Abstract]

Share-Based Compensation Expense

The expenses recognized for the three and nine months ended September 30 were as follows:

	Three months ended						Nine months ended
In millions	2012			2011			2012			2011
Stock options	$	4.2		$	4.4		$	1.7		$	17.6
RSUs	5.1			3.9			17.1			16.4
PSUs	6.4			(3.8		)	16.3			(2.7		)
Deferred compensation	(0.4		)	0.2			(0.5		)	0.6
Other	0.4			(1.8		)	1.9			(1.3		)
Pre-tax expense	15.7			2.9			36.5			30.6
Tax benefit	(6.0		)	(1.1		)	(14.0		)	(11.7		)
After-tax expense	$	9.7		$	1.8		$	22.5		$	18.9

Grants of Stock Options and RSUs

Grants during the nine months ended September 30 were as follows:

	2012			2011
	Number granted	Weighted- average fair value per award		Number granted	Weighted- average fair value per award
Stock options	1,463,352	$	13.67	1,591,738	$	14.59
RSUs	636,622	$	40.69	542,881	$	47.05

Average fair value of stock options, assumptions

The following assumptions were used during the nine months ended September 30:

	2012		2011
Dividend yield	1.33	%	1.33	%
Volatility	43.60	%	34.81	%
Risk-free rate of return	0.92	%	2.45	%
Expected life	5.1 years		5.3 years