v3.25.4
Derivative and Hedging Instruments - Gross Notional Amount by Remaining Term to Maturity (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about hedging instruments [line items]    
Notional amount $ 513,010 $ 499,021
Fair value, assets 9,628 8,667
Fair value, negative (14,347) (14,247)
Fair value, net (4,719) (5,580)
Credit equivalent amount 2,654 2,504
Capital requirement 51 49
Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 388,063 381,707
Fair value, assets 5,763 5,590
Fair value, negative (10,924) (11,632)
Fair value, net (5,161) (6,042)
Credit equivalent amount 390 376
Capital requirement 10 10
Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 95,191 87,582
Fair value, assets 3,186 2,726
Fair value, negative (4,072) (3,337)
Fair value, net (886) (611)
Credit equivalent amount 1,993 1,726
Capital requirement 39 36
Credit derivatives    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 109 114
Fair value, assets 1 2
Fair value, negative 0 0
Fair value, net 1 2
Credit equivalent amount 0 0
Capital requirement 0 0
Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 29,756 29,732
Fair value, assets 1,006 732
Fair value, negative (28) (57)
Fair value, net 978 675
Credit equivalent amount 271 402
Capital requirement 2 3
OTC swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 150,903 144,703
Fair value, assets 5,336 5,103
Fair value, negative (7,275) (6,976)
Fair value, net (1,939) (1,873)
Credit equivalent amount 331 323
Capital requirement 9 9
Cleared swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 168,834 180,628
Fair value, assets 251 240
Fair value, negative (222) (189)
Fair value, net 29 51
Credit equivalent amount 0 0
Capital requirement 0 0
Forward contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 41,967 41,689
Fair value, assets 168 231
Fair value, negative (3,427) (4,467)
Fair value, net (3,259) (4,236)
Credit equivalent amount 44 36
Capital requirement 1 1
Forward contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 39,499 36,649
Fair value, assets 713 743
Fair value, negative (819) (628)
Fair value, net (106) 115
Credit equivalent amount 821 698
Capital requirement 20 17
Futures | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 21,483 9,054
Fair value, assets 0 0
Fair value, negative 0 0
Fair value, net 0 0
Credit equivalent amount 0 0
Capital requirement 0 0
Futures | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 2,242 2,238
Fair value, assets 0 0
Fair value, negative 0 0
Fair value, net 0 0
Credit equivalent amount 0 0
Capital requirement 0 0
Futures | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 5,354 4,004
Fair value, assets 0 0
Fair value, negative 0 0
Fair value, net 0 0
Credit equivalent amount 0 0
Capital requirement 0 0
Options purchased | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 4,876 5,633
Fair value, assets 8 16
Fair value, negative 0 0
Fair value, net 8 16
Credit equivalent amount 15 17
Capital requirement 0 0
Options purchased | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 22,154 22,926
Fair value, assets 1,000 699
Fair value, negative (13) (43)
Fair value, net 987 656
Credit equivalent amount 252 375
Capital requirement 2 3
Swap contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 53,450 48,695
Fair value, assets 2,473 1,983
Fair value, negative (3,253) (2,709)
Fair value, net (780) (726)
Credit equivalent amount 1,172 1,028
Capital requirement 19 19
Swap contracts | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 2,139 2,688
Fair value, assets 5 31
Fair value, negative (15) (14)
Fair value, net (10) 17
Credit equivalent amount 19 27
Capital requirement 0 0
Subtotal including accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 513,010 499,021
Fair value, assets 9,955 9,048
Fair value, negative (15,024) (15,026)
Fair value, net (5,069) (5,978)
Credit equivalent amount 2,654 2,504
Capital requirement 51 49
Less accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Fair value, assets 327 381
Fair value, negative (677) (779)
Fair value, net (350) (398)
Credit equivalent amount 0 0
Capital requirement 0 0
Less than 1 year    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 118,398 106,156
Fair value, assets 970 1,171
Fair value, negative (2,270) (2,320)
Less than 1 year | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 55,656 47,084
Less than 1 year | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 37,690 33,705
Less than 1 year | Credit derivatives    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 17 0
Less than 1 year | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 25,052 25,367
Less than 1 year | OTC swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 5,558 6,999
Less than 1 year | Cleared swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 9,337 9,507
Less than 1 year | Forward contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 18,825 20,661
Less than 1 year | Forward contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 32,894 29,423
Less than 1 year | Futures | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 21,483 9,054
Less than 1 year | Futures | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 2,242 2,238
Less than 1 year | Futures | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 5,354 4,004
Less than 1 year | Options purchased | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 453 863
Less than 1 year | Options purchased | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 18,246 19,437
Less than 1 year | Swap contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 2,554 2,044
Less than 1 year | Swap contracts | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 1,435 1,926
Less than 1 year | Subtotal including accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 118,398 106,156
Less than 1 year | Less accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
1 to 5 years    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 103,043 97,369
1 to 5 years | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 83,265 78,166
1 to 5 years | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 15,074 14,838
1 to 5 years | Credit derivatives    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 92 114
1 to 5 years | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 4,704 4,365
1 to 5 years | OTC swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 29,751 25,019
1 to 5 years | Cleared swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 29,166 31,033
1 to 5 years | Forward contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 23,142 21,028
1 to 5 years | Forward contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 1,051 1,105
1 to 5 years | Futures | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
1 to 5 years | Futures | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
1 to 5 years | Futures | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
1 to 5 years | Options purchased | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 1,206 1,086
1 to 5 years | Options purchased | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 3,908 3,489
1 to 5 years | Swap contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 14,023 13,733
1 to 5 years | Swap contracts | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 704 762
1 to 5 years | Subtotal including accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 103,043 97,369
1 to 5 years | Less accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 291,569 295,496
Fair value, assets 7,007 6,283
Fair value, negative (9,456) (8,379)
Over 5 years | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 249,142 256,457
Over 5 years | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 42,427 39,039
Over 5 years | Credit derivatives    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | OTC swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 115,594 112,685
Over 5 years | Cleared swap contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 130,331 140,088
Over 5 years | Forward contracts | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Forward contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 5,554 6,121
Over 5 years | Futures | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Futures | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Futures | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Options purchased | Interest rate contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 3,217 3,684
Over 5 years | Options purchased | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Swap contracts | Foreign exchange    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 36,873 32,918
Over 5 years | Swap contracts | Equity contracts    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 0 0
Over 5 years | Subtotal including accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount 291,569 295,496
Over 5 years | Less accrued interest    
Disclosure of detailed information about hedging instruments [line items]    
Notional amount $ 0 $ 0