v3.22.4
Post-employment benefits
 3 Months Ended
Jan. 31, 2023
Text block [abstract]  
Post-employment benefits
Note 10.    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  
2023
Jan. 31
     2022
Oct. 31		     2022
Jan. 31		    
2023
Jan. 31
     2022
Oct. 31		     2022
Jan. 31		  
            Pension plans     Other
post-employment plans		  
Current service cost
  
$
   53
 
   $    67     $    66    
$
   1
 
   $     2     $      2  
Past service cost
  
 
–
 
     –       –    
 
–
 
     –       (8 ) 
Gain on settlements
  
 
–
 
     1       –    
 
–
 
     –       –  
Net interest (income) expense
  
 
(21
)
 
     (14 )      (14 )   
 
6
 
     5       5  
Interest expense on effect of asset ceiling
  
 
–
 
     1       –    
 
–
 
     –       –  
Plan administration costs
  
 
2
 
     2       2    
 
–
 
     –       –  
Net defined benefit plan expense
 
(income) recognized in net income
  
$
34
 
   $ 57     $ 54    
$
7
 
   $ 7     $ (1 ) 
Defined contribution plan expense
$ millions, for the three months ended   
2023
Jan. 31
      2022
Oct. 31		      2022
Jan. 31		  
Defined contribution pension plans
   
$
    19
 
    $     11      $     17  
Government pension plans 
(1)
   
 
48
 
      42        41  
Total defined contribution plan expense
   
$
67
 
    $ 53      $ 58  
(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  
2023
Jan. 31
 
   2022
Oct. 31		     2022
Jan. 31		    
2023
Jan. 31
     2022
Oct. 31		     2022
Jan. 31		  
       
 
   Pension plans     Other
post-employment plans		  
Net actuarial gains (losses) on defined benefit obligation
  
 
$        (448
)
   $      443     $ 279      
$    (23
)
   $ 36     $ 15  
Net actuarial gains (losses) on plan assets
  
 
342
 
     (723
)
     (150
) 
  
 
–
 
     –       –  
Changes in asset ceiling excluding interest income
  
 
(1
)
     2       –    
 
–
 
     –       –  
Net remeasurement gains (losses) recognized in OCI
  
$
  (107
)
   $ (278
)

   $      129      
$    (23
)
  
   $     36     $     15  
(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.