v3.26.1
Employee Benefits (Tables)
 6 Months Ended
Apr. 30, 2026
Text Block [Abstract]  
Summary of Expenses for Bank's Principal Plans
      For the three months ended  
      Pension plans      Other benefit plans  
($ millions)
   
April 30
2026
      January 31
2026		      April 30
2025		     
April 30
2026
      January 31
2026		      April 30
2025		  
Defined benefit service cost
   
$
60
 
    $ 60      $ 61     
$
5
 
    $ 5      $ 6  
Interest on net defined benefit (asset) liability
   
 
(6
)
      (6 )      (3 )   
 
16
 
      16        16  
Other
   
 
3
 
      3        3     
 
(1
)
      –        (1 ) 
Defined benefit expense
   
$
57
 
    $ 57      $ 61     
$
20
 
    $ 21      $ 21  
Defined contribution expense
   
$
58
 
    $ 56      $ 53     
$
–
 
    $ –      $ –  
Actuarial gains (losses) on employee benefit plans in other comprehensive income
(2)
   
$
   65
 
    $  275      $  (246 )    
$
   (1
) 
    $  (7 )     $  (9 ) 
 
  
  
For the six months ended
 
  
  
Pension plans
 
  
Other benefit plans
 
($ millions)
  
April 30
2026
 
  
April 30
2025
 
  
April 30
2026
 
  
April 30
2025
 
Defined benefit service cost
   
$
120
 
    $ 145     
$
10
 
    $ 11  
Interest on net defined benefit (asset) liability
   
 
(12
)
      (7 )   
 
32
 
      31  
Other
   
 
6
 
      6     
 
(1
)
      –  
Defined benefit expense
   
$
114
 
    $ 144     
$
41
 
    $ 42  
Defined contribution expense
   
$
114
 
    $ 102     
$
–
 
    $ 1  
Actuarial gains (losses) on employee benefit plans in other comprehensive income
(2)
   
$
  340
 
    $  27     
$
   (8
) 
    $  (22 ) 
  (1)
Other plans operated by certain subsidiaries of the Bank are not considered material and are not included in this note.
  (2)
Changes in discount rates and return on plan assets are reviewed and updated on a quarterly basis. In the absence of legislated changes, all other assumptions are updated annually.