v3.25.1
Post-retirement benefits (Tables)
3 Months Ended
Mar. 29, 2025
Postemployment Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Income for Pensions and Other Post-Retirement Benefits
The components of the net periodic benefit cost for pensions and other post-retirement benefits were as follows:
Three months ended March 29, 2025Three months ended March 30, 2024
(dollars in millions)
Pensions
Other post-retirement benefits
Total
Pensions
Other post-retirement benefits
Total
Reported in operating income:
—Employer service cost$1.0 $— $1.0 $1.0 $— $1.0 
Reported outside of operating income:
—Interest cost6.1 0.3 6.4 6.1 0.3 6.4 
—Expected return on plan assets(5.7)— (5.7)(6.5)— (6.5)
—Net amortization of prior period losses (gains)0.5 (0.8)(0.3)0.2 (0.8)(0.6)
Net periodic benefit cost (income)$1.9 $(0.5)$1.4 $0.8 $(0.5)$0.3 
Cash Contributions$3.5 $0.9 $4.4 $1.6 $1.0 $2.6