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Retirement Plans
 6 Months Ended
Jun. 27, 2020
Retirement Benefits [Abstract]  
Retirement Plans RETIREMENT PLANS
The following is a summary of net pension and Supplemental Executive Retirement Plan (“SERP”) expense recognized by the Company.
 Quarter EndedYear-To-Date Ended
(In millions)June 27,
2020		June 29,
2019		June 27,
2020		June 29,
2019
Service cost pertaining to benefits earned during the period
$1.6  $1.4  $3.2  $2.8  
Interest cost on projected benefit obligations
3.6  3.8  7.1  7.6  
Expected return on pension assets
(4.7) (4.5) (9.3) (8.9) 
Net amortization loss
1.7  0.7  3.3  1.3  
Net pension expense
$2.2  $1.4  $4.3  $2.8  
The non-service cost components of net pension expense is recorded in the Other income, net line item on the consolidated condensed statements of operations and comprehensive income.