Share Plans (Tables)

3 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

Share-based Compensation Expense

Total share-based compensation expense for the three months ended March 31, 2026 and 2025 was as follows:

	Three months ended
In millions	March 31, 2026		March 31, 2025
Restricted stock units	$	3.9	$	3.3
Stock options	2.6		2.6
Performance share units	9.2		6.7
Total share-based compensation expense	$	15.7	$	12.6

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:

	2026 Annual Grant
Risk-free interest rate	3.67	%
Expected dividend yield	1.01	%
Expected share price volatility	32.00	%
Expected term (years)	6.7