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Retirement Plans
3 Months Ended
Mar. 28, 2015
Compensation and Retirement Disclosure [Abstract]  
Retirement Plans
RETIREMENT PLANS
A summary of net pension and Supplemental Executive Retirement Plan expense recognized by the Company is as follows:
 
12 Weeks Ended
(In millions)
March 28,
2015
 
March 22,
2014
Service cost pertaining to benefits earned during the period
$
2.1

 
$
1.7

Interest cost on projected benefit obligations
4.2

 
4.7

Expected return on pension assets
(4.7
)
 
(5.1
)
Net amortization loss
4.8

 
1.7

Net pension expense
$
6.4

 
$
3.0