v3.22.4
IFRS 7 - Disclosure - Liquidity Risk - Summary of Encumbered and Unencumbered Assets from On- and Off-Balance Sheet Sources (Detail) - CAD ($)
$ in Millions
Jan. 31, 2023
Oct. 31, 2022
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets $ 402,157 $ 417,407
Encumbered liquid assets 178,916 187,990
Unencumbered liquid assets 223,241 229,417
Cash and deposits with banks [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 51,469 63,861
Encumbered liquid assets 282 286
Unencumbered liquid assets 51,187 63,575
Securities issued or guaranteed by sovereigns, central banks, and multilateral development banks [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 222,429 219,525
Encumbered liquid assets 114,922 122,283
Unencumbered liquid assets 107,507 97,242
Other debt securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 14,493 15,721
Encumbered liquid assets 2,818 2,262
Unencumbered liquid assets 11,675 13,459
Equities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 58,906 60,346
Encumbered liquid assets 31,246 30,408
Unencumbered liquid assets 27,660 29,938
Canadian government guaranteed National Housing Act mortgage-backed securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 34,868 36,469
Encumbered liquid assets 16,668 16,711
Unencumbered liquid assets 18,200 19,758
Other liquid assets [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 19,992 21,485
Encumbered liquid assets 12,980 16,040
Unencumbered liquid assets 7,012 5,445
Bank owned liquid assets [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 281,656 287,680
Bank owned liquid assets [member] | Cash and deposits with banks [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 51,469 63,861
Bank owned liquid assets [member] | Securities issued or guaranteed by sovereigns, central banks, and multilateral development banks [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 140,803 133,923
Bank owned liquid assets [member] | Other debt securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 6,628 6,764
Bank owned liquid assets [member] | Equities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 34,294 30,825
Bank owned liquid assets [member] | Canadian government guaranteed National Housing Act mortgage-backed securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 32,081 33,148
Bank owned liquid assets [member] | Other liquid assets [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 16,381 19,159
Securities received as collateral [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 120,501 129,727
Securities received as collateral [member] | Securities issued or guaranteed by sovereigns, central banks, and multilateral development banks [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 81,626 85,602
Securities received as collateral [member] | Other debt securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 7,865 8,957
Securities received as collateral [member] | Equities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 24,612 29,521
Securities received as collateral [member] | Canadian government guaranteed National Housing Act mortgage-backed securities [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets 2,787 3,321
Securities received as collateral [member] | Other liquid assets [member]    
Disclosure Of Encumbered and Unencumbered Assets [line items]    
Total liquid assets $ 3,611 $ 2,326