Share Plans (Tables)

9 Months Ended

Sep. 28, 2013

Share-based Compensation Expense

Total share-based compensation expense for the three and nine months ended September 28, 2013 and September 29, 2012 was as follows:

	Three months ended				Nine months ended
In millions	September 28, 2013		September 29, 2012		September 28, 2013		September 29, 2012
Restricted stock units	$	4.6	$	12.8	$	16.4	$	18.6
Stock options	2.6		5.6		8.9		9.9
Total share-based compensation expense	$	7.2	$	18.4	$	25.3	$	28.5

Assumptions Used in Calculating Estimated Fair Value of Stock Option Award

We estimated the fair value of each stock option award issued in the annual share-based compensation grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions:

	2013 Annual Grant
Risk-free interest rate	0.69	%
Expected dividend yield	2.01	%
Expected share price volatility	36.0	%
Expected term (years)	5.7