v3.26.3
Share Plans (Tables)
9 Months Ended
Sep. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Share-based Compensation Expense
Total share-based compensation expense for the three and nine months ended September 30, 2026 and 2025 was as follows:
Three months ended
Nine months ended
In millionsSeptember 30,
2026
September 30,
2025
September 30,
2026
September 30,
2025
Restricted stock units$3.0 $3.8 $10.8 $11.0 
Stock options0.3 0.6 3.7 4.1 
Performance share units0.8 1.7 9.1 12.2 
Total share-based compensation expense$4.1 $6.1 $23.6 $27.3 
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 rate3.67 %
Expected dividend yield1.01 %
Expected share price volatility32.00 %
Expected term (years)6.7