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Pension Benefits (Tables)
 6 Months Ended
Jun. 11, 2016
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost
The components of net periodic benefit cost associated with our significant U.S. pension plans are as follows:

 
Quarter ended
 
Year to date
 
2016
 
2015
 
2016
 
2015
Service cost
$
4

 
$
4

 
$
8

 
$
8

Interest cost
12

 
12

 
25

 
25

Expected return on plan assets
(15
)
 
(14
)
 
(30
)
 
(28
)
Amortization of net loss
2

 
11

 
3

 
21

Amortization of prior service cost
1

 
—

 
2

 
—

Net periodic benefit cost
$
4

 
$
13

 
$
8

 
$
26