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Stock-Based Compensation Plans
 9 Months Ended
Sep. 30, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Stock-Based Compensation Plans STOCK-BASED COMPENSATION PLANS
Stock-based compensation expense consists of the following:
(In millions)For the Three Months Ended 
September 30,		For the Nine Months Ended 
September 30,
 2024202320242023
Stock options$8.3 $8.0 $24.7 $25.1 
Restricted stock units2.4 1.3 7.5 3.9 
Total$10.7 $9.3 $32.2 $29.0 

Pursuant to our Amended and Restated Incentive Compensation Plan, we can grant stock-based awards in the form of restricted stock, restricted stock units, and stock options to team members, officers, directors, and contractors. Instead of a short-term compensation program providing for rolling, annual equity awards to our executive officers and senior leaders, we utilize 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 covers the 2021 through 2024 compensation period and included a one-time equity award in December 2020 with a vesting period of four years. Based on the stock-based awards that are currently outstanding, we expect to recognize the future stock-based compensation expense as follows:

(in millions)
YearTotal Projected
Stock-Based Compensation Expense
Remainder of 2024$10.9 
202513.5 
20267.4 
20271.1 
2028— 
Total$32.9