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Post-employment benefits
 3 Months Ended
Jan. 31, 2022
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Post-employment benefits
Note 9.    Post-employment benefits
The following tables provide details on the post-employment benefit expense recognized in the interim consolidated statement of income and on the remeasurements recognized in the interim consolidated statement of comprehensive income:
Defined benefit plan expense
$ millions, for the three months ended
 
2022
Jan. 31
 
 
2021
Oct. 31
 
 
2021
Jan. 31
 
 
2022
Jan. 31
 
 
2021
Oct. 31
 
 
2021
Jan. 31
 
  
 
Pension plans
 
 
Other
post-employment plans
 
Current service cost
  
$
66
 
   $ 70     $ 71    
$
2
 
   $ 1     $ 2  
Past service cost 
 
 
 –
 
 
 
 
(1
)
 
 
–
 
 
 
 
(8
)
 
 
 
9
 
 
 
–
 
Net interest (income) expense
  
 
(14
 )     (3 )      (4 )   
 
5
 
     5       4  
Plan administration costs
  
 
2
 
     2       2    
 
–
 
     –       –  
Net defined benefit plan expense
(income)
recognized in net income

  
$
    54
 
   $     68     $     69    
$
    (1
 )   $     15     $     6  
Defined contribution plan expense
 
$ millions, for the three months ended
  
2022
Jan. 31
 
  
2021
Oct. 31
 
  
2021
Jan. 31
 
Defined contribution pension plans
   
$
    17
 
    $ 8      $ 11  
Government pension plans
(1)
   
 
41
 
      34        36  
Total defined contribution plan expense
   
$
58
 
    $     42      $     47  
(1)
Includes Canada Pension Plan, Quebec Pension Plan, and U.S. Federal Insurance Contributions Act.
Remeasurement of employee defined benefit plans
(1)
$ millions, for the three months ended
 
2022
Jan. 31
 
 
2021
Oct. 31
 
 
2021
Jan. 31
 
 
2022
Jan. 31
 
 
2021
Oct. 31
 
 
2021
Jan. 31
 
  
 
  
 
 
Pension plans
 
 
Other
post-employment plans
 
Net actuarial gains (losses) on defined benefit obligation
  
$
    279
 
   $     265     $ 60    
$
15
 
   $ 42     $ 3  
Net actuarial gains (losses) on plan assets
  
 
(150
 )
 
     20       207    
 
–
 
     –       –  
Changes in asset ceiling excluding interest income
  
 
–
 
     1       –    
 
–
 
     –       –  
Net remeasurement gains (losses) recognized in OCI
  
$
129
 
   $ 286     $     267    
$
    15
 
   $     42     $     3  
(1)
The Canadian post-employment defined benefit plans are remeasured on a quarterly basis for changes in the discount rate and for actual asset returns. All other Canadian plans’ actuarial assumptions and foreign plans’ actuarial assumptions are updated at least annually.