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Pension and Other Postretirement Benefit Plans (Tables)
 9 Months Ended
Oct. 01, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
The net periodic benefit cost for the company's defined benefit pension plans includes the following components:
 
 
Three Months Ended
 
Nine Months Ended
 
 
October 1,

 
September 26,

 
October 1,

 
September 26,

(In millions)
 
2016

 
2015

 
2016

 
2015

 
 
 
 
 
 
 
 
 
Components of Net Benefit Cost
 
 
 
 
 
 
Service cost-benefits earned
 
$
5.3

 
$
7.7

 
$
15.8

 
$
20.0

Interest cost on benefit obligation
 
19.1

 
19.4

 
58.1

 
58.1

Expected return on plan assets
 
(19.3
)
 
(23.4
)
 
(58.8
)
 
(70.0
)
Amortization of actuarial net loss
 
1.9

 
2.3

 
5.6

 
7.0

Amortization of prior service benefit
 
—

 
(0.1
)
 
(0.1
)
 
(0.2
)
Settlement/curtailment loss
 
—

 
—

 
—

 
0.1

 
 
 
 
 
 
 
 
 
Net periodic benefit cost
 
$
7.0

 
$
5.9

 
$
20.6

 
$
15.0