XML 33 R23.htm IDEA: XBRL DOCUMENT v3.19.1
Pension, Postretirement, and Postemployement Obligations (Tables)
 6 Months Ended
Mar. 31, 2019
Pension Postretirement And Postemployment Defined Benefit Plans [Abstract]  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
The net periodic postretirement cost (benefit) components for our postretirement plans are as follows:
PENSION PLANS
13 Weeks Ended
 
26 Weeks Ended
 
(Thousands of Dollars)
March 31
2019

March 25
2018

March 31
2019

March 25
2018

 
 
 
 
 
Service cost for benefits earned during the period
9

12

18

24

Interest cost on projected benefit obligation
1,641

1,438

3,282

2,876

Expected return on plan assets
(2,018
)
(1,983
)
(4,036
)
(3,966
)
Amortization of net loss
284

506

568

1,012

Amortization of prior service benefit
(25
)
(34
)
(50
)
(68
)
Pension benefit
(109
)
(61
)
(218
)
(122
)
 
 
 
 
 
POSTRETIREMENT MEDICAL PLANS
13 Weeks Ended
 
26 Weeks Ended
 
(Thousands of Dollars)
March 31
2019

March 25
2018

March 31
2019

March 25
2018

 
 
 
 
 
Interest cost on projected benefit obligation
103

90

206

181

Expected return on plan assets
(270
)
(270
)
(540
)
(540
)
Amortization of net gain
(244
)
(246
)
(488
)
(492
)
Amortization of prior service benefit
(181
)
(196
)
(362
)
(392
)
Curtailment gains
—

(2,031
)
—

(2,031
)
Postretirement medical benefit
(592
)
(2,653
)
(1,184
)
(3,274
)