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Retiree Benefits (Tables)
 3 Months Ended
Jan. 27, 2017
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic benefit cost
The components of the net periodic benefit (income) cost associated with our pension and other postretirement plans are as follows:
 
Pension Benefits
 
Postretirement Benefits
 
Quarter Ended
 
Quarter Ended
In thousands
January 27,
2017
 
January 29,
2016
 
January 27,
2017
 
January 29,
2016
Service cost
$
1,343

 
$
1,226

 
$
149

 
$
191

Interest cost
14,982

 
18,736

 
210

 
305

Expected return on assets
(20,932
)
 
(23,844
)
 
(149
)
 
(147
)
Amortization of prior service cost
14

 
17

 
(4
)
 
33

Curtailment loss
—

 
—

 
—

 
100

Contractual termination benefits
—

 
9,600

 
—

 
—

Net periodic benefit (income) cost
$
(4,593
)
 
$
5,735

 
$
206

 
$
482