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Stock-Based Compensation Plans
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Stock-Based Compensation Plans STOCK-BASED COMPENSATION PLANS
Restricted Stock Units Number of Restricted Stock UnitsWeighted Average Grant-Date Fair Value Per Share
Outstanding as of December 31, 2025
697,623 $443.27 
Granted60,801 506.98
Settled(43,267)487.41
Forfeited(144,543)476.00
Outstanding as of June 30, 2026
570,614 $438.42 

The forfeitures of unvested restricted stock units were primarily due to the retirements of executive officers during the first six months of 2026.

Stock-based compensation expense consists of the following:
(In millions)For the Three Months Ended 
June 30,		For the Six Months Ended 
June 30,
2026202520262025
Restricted stock units$8.7 $11.3 $19.5 $21.9 
Stock options— 1.4 0.5 3.7 
Total$8.7 $12.7 $20.0 $25.6 

Under our Amended and Restated Incentive Compensation Plan, we may grant stock-based awards — including restricted stock, restricted stock units, and stock options — to team members, officers, directors, and contractors. Rather than providing annual rolling equity awards to our executive officers and senior leaders, we use a multi-year compensation program that grants a one-time equity award at the beginning of the compensation program period that is intended to incentivize recipients over the multi-year compensation period. Our current compensation program for executive officers and senior leaders consists primarily of one-time equity awards with a 10-year vesting period. Based on the stock-based awards that are currently outstanding, we expect to recognize future stock-based compensation expense as follows:

(In millions)
YearTotal Projected
Stock-Based Compensation Expense
Remainder of 2026$18.9 
202732.3 
202826.9 
202921.9 
203020.1 
Thereafter79.9 
Total$200.0