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Retirement and Post-Retirement Benefit Plans (Tables)
 3 Months Ended
Jan. 31, 2019
Retirement Benefits [Abstract]  
Summary of Net Benefit Cost
The Company's net pension benefit cost for defined benefit plans recognized in the Condensed Consolidated Statements of Earnings for the three months ended January 31, 2019 and 2018, was as follows:
 
Three months ended January 31,
 
2019
 
2018
 
In millions
Service cost
$
21

 
$
26

Interest cost(1)
55

 
55

Expected return on plan assets(1)
(130
)
 
(139
)
Amortization and deferrals(1):
 

 
 

Actuarial loss
57

 
52

Prior service benefit
(4
)
 
(4
)
Net periodic benefit (credit) cost(1)
(1
)
 
(10
)
Settlement loss(1)
5

 
—

Special termination benefits(1)
—

 
2

Net benefit cost (credit) cost
$
4

 
$
(8
)
 
(1)
These non-service components of net periodic benefit cost were included in Non-service net periodic benefit credit in the Condensed Consolidated Statements of Earnings.