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Interest income and expense
6 Months Ended
Apr. 30, 2022
Text Block [Abstract]  
Interest income and expense
16.
Interest income and expense
 
  
 
For the three months ended
 
 
For the six months ended
 
  
 
April 30, 2022
 
 
January 31, 2022
 
 
April 30, 2021
 
 
April 30, 2022
 
 
April 30, 2021
 
($ millions)
 
Interest
income
 
 
Interest
expense
 
 
Interest
income
 
 
Interest
expense
 
 
Interest
income
 
 
Interest
expense
 
 
Interest
income
 
 
Interest
expense
 
 
Interest
income
 
 
Interest
expense
 
Measured at amortized cost
(1)
 
$
6,654
 
 
$
2,581
 
  $   6,150     $   2,069     $   5,897     $   1,962    
$
12,804
 
 
$
4,650
 
  $   12,109     $   4,088  
Measured at FVOCI
(1)
 
 
261
 
 
 
 
    181             181          
 
442
 
 
 
 
    369        
     
6,915
   
 
2,581
 
    6,331       2,069       6,078       1,962    
 
13,246
 
 
 
4,650
 
    12,478       4,088  
Other
 
 
177
(2)
 
 
 
38
(3)
 
    132
(2)
 
    50
(3)
 
    109
(2)
 
    49
(3)
 
 
 
309
(2)
 
 
 
88
(3)
 
    221
(2)
 
    84
(3)
 
Total
 
$
  7,092
 
 
$
2,619
 
  $ 6,463     $ 2,119     $ 6,187     $ 2,011    
$
  13,555
 
 
$
  4,738
 
  $ 12,699     $ 4,172  
  (1)
The interest income/expense on financial assets/liabilities are calculated using the effective interest method.
  (2)
Includes dividend income on equity securities.
  (3)
Includes interest on lease liabilities for the three months ended April 30, 2022 – $26 (January 31, 2022 – $27; April 30, 2021 – $27) and for the six months ended April 30, 2022 – $53 (April 30, 2021 – $54).