Equity (Tables)

6 Months Ended

Jun. 30, 2025

Equity

Summary of the status of the Company's restricted stock units and changes during the period

		Weighted
		Average
		Grant Date
	RSU and PSU	Fair Value
	Aggregate Units	Per Unit
Unvested as of January 1, 2025	327,017	$	267.96
Granted(1)	163,409		299.37
Vested	(1,260)		263.38
Cancelled or forfeited	(5,792)		273.86
Unvested as of June 30, 2025	483,374	$	278.52
Shares reserved for future issuance (all plans)	1,221,197

(1) Comprised of 96,973 RSUs and 65,927 PSUs granted in February 2025; and 509 RSUs granted in May 2025. The RSUs cliff vest on December 1, 2027 and the PSUs vest upon the completion of a 3-year performance period ending December 31, 2027.

Schedule of share repurchase activity

	2025					2024
		Average Cost					Average Cost
	Shares	Per Share		Amount		Shares	Per Share		Amount
				(in millions)					(in millions)
First quarter	922,656	$	274.41	$	253.2	—	$	—	$	—
Second quarter	301,279		265.17		79.9	1,804,180		287.81		519.3
	1,223,935	$	272.13	$	333.1	1,804,180	$	287.81	$	519.3

Schedule of accumulated other comprehensive loss

			Pension and
	Foreign Currency		Postretirement Benefit		Accumulated Other
	Translation		Plan Adjustments,		Comprehensive
	(Loss) Gain		Net of Tax		(Loss) Income
			(in millions)
Balance as of January 1, 2025	$	(119.7)	$	4.5	$	(115.2)
Current-period change		31.0		(2.0)		29.0
Balance as of June 30, 2025	$	(88.7)	$	2.5	$	(86.2)