Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Share-based Compensation [Abstract]

Share-Based Compensation Expense

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

	Three months ended						Nine months ended
In millions	2016			2015			2016			2015
Stock options	$	3.3		$	3.2		$	14.7		$	13.1
RSUs	5.1			5.0			21.5			20.7
Performance shares	4.6			5.0			14.1			16.9
Other	1.2			(0.8		)	3.9			(0.1		)
Pre-tax expense	14.2			12.4			54.2			50.6
Tax benefit	(5.4		)	(4.7		)	(20.7		)	(19.3		)
After-tax expense	$	8.8		$	7.7		$	33.5		$	31.3

Grants of Stock Options and RSUs

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

	2016			2015
	Number granted	Weighted- average fair value per award		Number granted	Weighted- average fair value per award
Stock options	1,958,476	$	9.42	1,333,849	$	14.15
RSUs	485,351	$	51.25	411,968	$	66.82

Average fair value of stock options, assumptions

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

	2016		2015
Dividend yield	2.55	%	1.73	%
Volatility	28.60	%	28.56	%
Risk-free rate of return	1.12	%	1.24	%
Expected life in years	4.8		4.9