Share Plans (Tables)

3 Months Ended

Mar. 31, 2025

Share-Based Payment Arrangement [Abstract]

Share-based Compensation Expense

Total share-based compensation expense for the three months ended March 31, 2025 and 2024 was as follows:

	Three months ended
In millions	March 31, 2025		March 31, 2024
Restricted stock units	$	3.3	$	3.8
Stock options	2.6		1.4
Performance share units	6.7		2.7
Total share-based compensation expense	$	12.6	$	7.9

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

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:

	2025 Annual Grant
Risk-free interest rate	4.12	%
Expected dividend yield	0.98	%
Expected share price volatility	31.10	%
Expected term (years)	6.9