v3.26.1
Employee Benefits - Summary of Total Expense Related to All Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Net periodic postretirement and postemployment benefit cost relating to defined benefit plans $ 1.0 $ 1.4 $ 2.1 $ 2.6
Postretirement and Postemployment Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Defined contribution plan, cost [1] 4.5 4.6 10.5 10.6
Deferred compensation arrangement with individual, compensation expense [2] 0.9 0.4 1.0 0.6
Multiemployer plan, contributions by employer [1] 1.6 1.6 3.1 3.1
Net periodic postretirement and postemployment benefit cost relating to defined benefit plans [3] 2.1 2.5 4.2 4.8
Total other employee benefit plans $ 9.1 $ 9.1 $ 18.8 $ 19.1
[1] Substantially all of these charges related to employee benefits are in COGS with the remaining balance in Selling, general, administrative, research, and development (“SG&A and R&D”) in our Statements of Consolidated Income.
[2] Deferred compensation plan expense is included within SG&A and R&D in our Statements of Consolidated Income.
[3] The current service cost component of Net periodic postretirement and postemployment benefit cost relating to both the pension plans and the OPEB plan is included within COGS in our Statements of Consolidated Income for all periods presented. All other components are included within Other income, net, in our Statements of Consolidated Income.