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Retirement Plans
 3 Months Ended
Apr. 01, 2017
Compensation and Retirement Disclosure [Abstract]  
Retirement Plans
RETIREMENT PLANS
The following is a summary of net pension and Supplemental Executive Retirement Plan (“SERP”) expense recognized by the Company.
(In millions)
13 Weeks Ended
April 1, 2017
 
12 Weeks Ended
March 26, 2016
Service cost pertaining to benefits earned during the period
$
1.8

 
$
1.5

Interest cost on projected benefit obligations
4.4

 
4.4

Expected return on pension assets
(4.9
)
 
(4.6
)
Net amortization loss
2.4

 
1.1

Net pension expense
$
3.7

 
$
2.4