Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation Expense

Total share-based compensation expense for the three months ended March 31, 2024 and 2023, was as follows:

	Three months ended
In millions	March 31, 2024		March 31, 2023
Restricted stock units	$	3.3	$	2.7
Performance share units	2.0		2.0
Stock options	1.3		1.0
Total	$	6.6	$	5.7

Schedule of 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:

	2024 Annual Grant
Risk-free interest rate	4.06	%
Expected dividend yield	1.27	%
Expected share price volatility	37.1	%
Expected term (years)	6.8