v3.26.1
Employee benefits - Pension and other post-employment benefits (Tables)
 6 Months Ended
Apr. 30, 2026
Text Block [Abstract]  
Summary of Composition of Pension and Other Post-Employment Benefit Expense
Pension and other post-employment benefit expense
 
     For the three months ended  
         Pension plans             
Other post-employment benefit plans
  
(Millions of Canadian dollars)
  
April 30
2026
    
April 30
2025
         
April 30
2026
    
April 30
2025
  
Current service costs
  
$
50
 
   $ 52      
$
9
 
   $ 8  
Past service costs
  
 
–
 
     49        
 
–
 
     –  
Net interest expense (income)
  
 
(45
)
     (41 )    
 
19
 
     20  
Remeasurements of other long-term benefits
  
 
–
 
     –      
 
(2
)
     3  
Administrative expense
  
 
6
 
     5        
 
–
 
     –  
Defined benefit pension expense
  
 
11
 
     65      
 
26
 
     31  
Defined contribution pension expense
  
 
141
 
     131        
 
–
 
     –  
   
$
152
 
   $ 196        
$
26
 
   $ 31  
 
     For the six months ended  
         Pension plans             
Other post-employment benefit plans
  
(Millions of Canadian dollars)
  
April 30
2026
    
April 30
2025
         
April 30
2026
    
April 30
2025
  
Current service costs
  
$
100
 
   $ 104      
$
18
 
   $ 16  
Past service costs
  
 
–
 
     49      
 
–
 
     –  
Net interest expense (income)
  
 
(89
)
     (81 )    
 
39
 
     39  
Remeasurements of other long-term benefits
  
 
–
 
     –      
 
(5
)
     5  
Administrative expense
  
 
11
 
     11        
 
–
 
     –  
Defined benefit pension expense
  
 
22
 
     83      
 
52
 
     60  
Defined contribution pension expense
  
 
324
 
     288        
 
–
 
     –  
   
$
346
 
   $ 371        
$
52
 
   $ 60  
Summary of Composition of Remeasurements Recorded in OCI related to pension and other post employment benefit plans
Pension and other post-employment benefit remeasurements
(1)
 
    
For
the three months ended		  
      Defined benefit pension plans          
Other post-employment benefit plans
  
(Millions of Canadian dollars)
  
April 30
2026
    
April 30
2025
         
April 30
2026
    
April 30
2025
  
Actuarial (gains) losses:
          
Changes in financial assumptions
(2)
  
$
(345
)
   $ (526 )    
$
(31
)
   $ (48 ) 
Experience adjustments
  
 
1
 
     (1 )    
 
(3
)
     (2 ) 
Return on plan assets (excluding interest based on discount rate)
  
 
259
 
     561        
 
–
 
    
–
  
   
$
(85
)
   $ 34        
$
(34
)
   $ (50 ) 
 
     For the six months ended  
      Defined benefit pension plans          
Other post-employment benefit plans
  
(Millions of Canadian dollars)
  
April 30
2026
    
April 30
2025
         
April 30
2026
    
April 30
2025
  
Actuarial (gains) losses:
          
Changes in financial assumptions
(2)
  
$
(660
)
   $ (183 )    
$
(47
)
   $ (14 ) 
Experience adjustments
  
 
(1
)
     (1 )    
 
(4
)
     (2 ) 
Return on plan assets (excluding interest based on discount rate)
  
 
363
 
     132        
 
–
 
     –  
   
$
(298
)
   $ (52 )      
$
(51
)
   $ (16 ) 
 
(1)
Market-based assumptions, including Changes in financial assumptions and Return on plan assets, are reviewed on a quarterly basis. All other assumptions are updated during our annual review of plan assumptions.
(2)
Changes in financial assumptions in our defined benefit pension plans primarily relate to changes in discount rates.