XML 39 R27.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Pension and Other Postretirement Benefits (Tables)
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block] The components of net periodic pension and retiree medical income were as follows (in millions):
Three Months Ended March 31,
 20242023
Interest cost$7.4 $7.7 
Expected return on plan assets(7.9)(7.7)
Amortization of net gain(0.2)(0.1)
Net periodic pension and retiree medical income (1)
$(0.7)$(0.1)

(1)Included in Other, net, in our Condensed Consolidated Statements of Operations.