Bank of Montreal (BMO) 6-K 26 Feb 19 2019 Q1 BMO Financial Group Reports First Quarter 2019 Results Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Jan. 31, 2019
Document - Document and Entity Information [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Jan. 31, 2019
Document Fiscal Year Focus	2,019
Document Fiscal Period Focus	Q1
Trading Symbol	BMO
Entity Registrant Name	BANK OF MONTREAL /CAN/
Entity Central Index Key	927,971
Current Fiscal Year End Date	--10-31

Consolidated Statement of Incom

Consolidated Statement of Income - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Interest, Dividend and Fee Income
Loans	$ 4,795	$ 4,486	$ 3,705
Securities (Note 2)	1,314	1,186	928
Deposits with banks	222	206	122
Interest, Dividend and Fee Income	6,331	5,878	4,755
Interest Expense
Deposits	2,079	1,881	1,201
Subordinated debt	70	61	53
Other liabilities	1,010	921	626
Interest Expense	3,159	2,863	1,880
Net Interest Income	3,172	3,015	2,875
Non-Interest Revenue (Note 1)
Securities commissions and fees	248	256	261
Deposit and payment service charges	291	290	276
Trading revenues	93	131	88
Lending fees	277	266	247
Card fees	105	111	88
Investment management and custodial fees	428	441	424
Mutual fund revenues	347	359	366
Underwriting and advisory fees	244	244	221
Securities gains, other than trading	49	83	67
Foreign exchange gains, other than trading	38	42	36
Insurance revenue	1,049	485	507
Investments in associates and joint ventures	29	38	44
Other	147	132	138
Non-Interest Revenue	3,345	2,878	2,763
Total Revenue	6,517	5,893	5,638
Provision for Credit Losses (Note 3)	137	175	141
Insurance Claims, Commissions and Changes in Policy Benefit Liabilities	926	390	361
Non-Interest Expense (Note 1)
Employee compensation	2,072	1,613	1,963
Premises and equipment	728	745	664
Amortization of intangible assets	133	125	123
Travel and business development	126	150	113
Communications	74	70	67
Professional fees	121	160	125
Other	303	330	345
Non-Interest Expense	3,557	3,193	3,400
Income (loss) before taxes	1,897	2,135	1,736
Provision for income taxes (Note 12)	387	438	763
Net Income attributable to Bank shareholders	$ 1,510	$ 1,697	$ 973
Earnings Per Share (Canadian $) (Note 11)
Basic	$ 2.28	$ 2.58	$ 1.43
Diluted	2.28	2.58	1.43
Common shares [member]
Earnings Per Share (Canadian $) (Note 11)
Dividends per common share	$ 1	$ 0.96	$ 0.93

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - CAD ($) $ in Millions		3 Months Ended
		Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Statement [LineItems]
Net Income		$ 1,510	$ 1,697	$ 973
Other Comprehensive Income (Loss), net of taxes
Reclassification to earnings of (gains) in the period	[1]	(14)	(22)	(13)
Other comprehensive income net of tax available for sale financial assets		173	(71)	(126)
Net change in unrealized gains (losses) on cash flow hedges
Gains (losses) on derivatives designated as cash flow hedges arising during the period	[2]	757	(309)	(595)
Reclassification to earnings of losses on derivatives designated as cash flow hedges	[3]	37	120	31
Other comprehensive income net of tax cash flow hedges		794	(189)	(564)
Net gains (losses) on translation of net foreign operations
Unrealized gains (losses) on translation of net foreign operations		(25)	303	(1,090)
Unrealized gains (losses) on hedges of net foreign operations	[4]	13	(62)	131
Other comprehensive income, net of taxes, translation of net foreign operations		(12)	241	(959)
Gains (losses) on remeasurement of pension and other employee future benefit plans	[5]	(148)	(42)	72
Gains (losses) on remeasurement of own credit risk on financial liabilities designed at fair value	[6]	79	(18)	(74)
Items that will not be reclassified to net income		(69)	(60)	(2)
Other Comprehensive Income (Loss), net of taxes		886	(79)	(1,651)
Total Comprehensive Income (Loss) attributable to Bank shareholders		2,396	1,618	(678)
Debt securities [member]
Other Comprehensive Income (Loss), net of taxes
Unrealized gains on fair value through OCI securities arising during the period	[7]	$ 187	$ (49)	$ (113)
[1]	Net of income tax provision of $5 million, $8 million, $4 million for the three months ended.
[2]	Net of income tax (provision) recovery of $(274) million, $114 million, $201 million for the three months ended.
[3]	Net of income tax (recovery) of $(13) million, $(43) million, $(11) million for the three months ended.
[4]	Net of income tax (provision) recovery of $(5) million, $22 million, $(47) million for the three months ended.
[5]	Net of income tax (provision) recovery of $54 million, $23 million, $(50) million for the three months ended.
[6]	Net of income tax (provision) recovery of $(29) million, $7 million, $26 million for the three months ended.
[7]	Net of income tax (provision) recovery of $(61) million, $22 million, $24 million for the three months ended.

Consolidated Statement of Com_2

Consolidated Statement of Comprehensive Income (Parenthetical) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Statement [LineItems]
Net of income tax provision, reclassification to earnings of (gains) losses	$ 5	$ 8	$ 4
Net of income tax (provision) recovery, gains (losses) on derivatives designated as cash flow hedges	(274)	114	201
Net of income tax (recovery), reclassification to earnings of losses on derivatives designated as cash flow hedges	(13)	(43)	(11)
Net of income tax (provision) recovery, unrealized gains on hedges of net foreign operations	(5)	22	(47)
Net of income tax (provision) recovery, gains (losses) on remeasurement of pension and other employee future benefit plans	54	23	(50)
Net of income tax (provision) recovery, gains (losses) on remeasurement of own credit risk on financial liabilities designated at fair value	(29)	7	26
Debt securities [member]
Statement [LineItems]
Net of income tax (provision) recovery, unrealized gains (losses) on fair value through OCI securities	$ (61)	$ 22	$ 24

Consolidated Balance Sheet

Consolidated Balance Sheet - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Assets
Cash and Cash Equivalents	$ 40,470	$ 42,142	$ 41,159
Interest Bearing Deposits with Banks	7,609	8,305	6,740
Securities
Trading	101,486	99,697	93,428
Fair value through profit or loss	12,280	11,611	11,261
Fair value through other comprehensive income	66,696	62,440	49,755
Debt securities at amortized cost	7,272	6,485	8,455
Other	742	702	652
Securities, net	188,476	180,935	163,551
Securities Borrowed or Purchased Under Resale Agreements	100,699	85,051	83,194
Loans
Residential mortgages	120,039	119,620	117,186
Consumer instalment and other personal	63,241	63,225	61,118
Credit cards	8,187	8,329	7,994
Business and government	207,765	194,456	171,988
Loans gross of allowance for loan losses	399,232	385,630	358,286
Allowance for credit losses	(1,628)	(1,639)	(1,624)
Loans,net	397,604	383,991	356,662
Other Assets
Derivative instruments	21,633	26,204	31,756
Customers' liability under acceptances	21,529	18,585	16,705
Premises and equipment	1,971	1,986	1,965
Goodwill	6,388	6,373	6,056
Intangible assets	2,285	2,272	2,144
Current tax assets	1,469	1,515	2,071
Deferred tax assets	1,813	2,039	2,190
Other	14,651	14,677	13,740
Other assets	71,739	73,651	76,627
Total Assets	806,597	774,075	727,933
Liabilities and Equity
Deposits	532,199	520,928	475,565
Other Liabilities
Derivative instruments	23,188	24,411	31,079
Acceptances	21,529	18,585	16,705
Securities sold but not yet purchased	30,407	28,804	26,367
Securities lent or sold under repurchase agreements	87,783	66,684	72,260
Securitization and structured entities' liabilities	23,969	25,051	23,503
Current tax liabilities	84	50	52
Deferred tax liabilities	73	74	207
Other	33,196	36,985	32,913
Other liabilities	220,229	200,644	203,086
Subordinated debt	6,820	6,782	6,463
Equity
Contributed surplus	308	300	306
Retained earnings	26,599	25,850	23,893
Accumulated other comprehensive income	3,188	2,302	1,360
Total Equity	47,349	45,721	42,819
Total Liabilities and Equity	806,597	774,075	727,933
Preferred shares [member]
Equity
Issued capital	4,340	4,340	4,240
Total Equity	4,340	4,340	4,240
Common shares [member]
Equity
Issued capital	12,914	12,929	13,020
Total Equity	$ 12,914	$ 12,929	$ 13,020

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - CAD ($) $ in Millions	Total		Debt securities [member]	[4]	Share premium [member]	Retained earnings [member]	Accumulated other comprehensive income (loss) on Available-for-Sale Securities, net of taxes [member]	Accumulated other comprehensive income (loss) on Available-for-Sale Securities, net of taxes [member]Debt securities [member]	Accumulated Other Comprehensive Income (Loss) on derivatives designated as Cash Flow Hedges, net of taxes [member]	Accumulated other comprehensive income on translation of net foreign operations, net of taxes [member]	Accumulated other comprehensive income (loss) on own credit risk on financial liabilities designated at fair value, net of taxes [member]	Accumulated other comprehensive income on fair value through other comprehensive income securities net of taxes [member]	Total accumulated other comprehensive income [member]	Preferred shares [member]	Preferred shares [member]Retained earnings [member]	Common shares [member]	Common shares [member]Retained earnings [member]
Balance at beginning of period at Oct. 31, 2017					$ 307	$ 23,700	$ 56		$ (182)	$ 3,465	$ (92)	$ (181)		$ 4,240		$ 13,032
Statement [LineItems]
Impact from adopting IFRS 9						99	(55)
Issued under the Stock Option Plan																48
Stock option expense, net of options exercised					(6)
Gains (losses) on derivatives designated as cash flow hedges arising during the period	$ (595)	[1]							(595)
Unrealized (losses) on translation of net foreign operations	(1,090)									(1,090)
Gains (losses) on remeasurement of pension and other employee future benefit plans	72	[2]									72
Gains (losses) on remeasurement of own credit risk on financial liabilities designated at fair value	(74)	[3]										(74)
Net income attributable to bank shareholders	973					973
Repurchased for cancellation (Note 7)																(60)
Other					5
Unrealized gains on fair value through OCI securities arising during the period			$ (113)					$ (113)
Reclassification to earnings of losses on derivatives designated as cash flow hedges in the period	31	[5]							31
Unrealized gains on hedges of net foreign operations	131	[6]								131
Dividends															$ (45)		$ (600)
Reclassification to earnings of (gains) in the period	(13)	[7]					(13)
Common shares repurchased for cancellation (Note 7)						(234)
Balance at End of Period at Jan. 31, 2018	42,819				306	23,893	(125)		(746)	2,506	(20)	(255)	$ 1,360	4,240		13,020
Balance at beginning of period at Oct. 31, 2018	45,721				300	25,850	(315)		(1,074)	3,727	169	(205)		4,340		12,929
Statement [LineItems]
Issued under the Stock Option Plan																5
Stock option expense, net of options exercised					4
Gains (losses) on derivatives designated as cash flow hedges arising during the period	757	[1]							757
Unrealized (losses) on translation of net foreign operations	(25)									(25)
Gains (losses) on remeasurement of pension and other employee future benefit plans	(148)	[2]									(148)
Gains (losses) on remeasurement of own credit risk on financial liabilities designated at fair value	79	[3]										79
Net income attributable to bank shareholders	1,510					1,510
Repurchased for cancellation (Note 7)																(20)
Other					4
Unrealized gains on fair value through OCI securities arising during the period			$ 187					$ 187
Reclassification to earnings of losses on derivatives designated as cash flow hedges in the period	37	[5]							37
Unrealized gains on hedges of net foreign operations	13	[6]								13
Dividends															$ (52)		$ (639)
Reclassification to earnings of (gains) in the period	(14)	[7]					(14)
Common shares repurchased for cancellation (Note 7)						(70)
Balance at End of Period at Jan. 31, 2019	$ 47,349				$ 308	$ 26,599	$ (142)		$ (280)	$ 3,715	$ 21	$ (126)	$ 3,188	$ 4,340		$ 12,914
[1]	Net of income tax (provision) recovery of $(274) million, $114 million, $201 million for the three months ended.
[2]	Net of income tax (provision) recovery of $54 million, $23 million, $(50) million for the three months ended.
[3]	Net of income tax (provision) recovery of $(29) million, $7 million, $26 million for the three months ended.
[4]	Net of income tax (provision) recovery of $(61) million, $22 million, $24 million for the three months ended.
[5]	Net of income tax (recovery) of $(13) million, $(43) million, $(11) million for the three months ended.
[6]	Net of income tax (provision) recovery of $(5) million, $22 million, $(47) million for the three months ended.
[7]	Net of income tax provision of $5 million, $8 million, $4 million for the three months ended.

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Cash Flows from Operating Activities
Net Income	$ 1,510	$ 973
Adjustments to determine net cash flows provided by (used in) operating activities
Provision on securities, other than trading		1
Net (gain) on securities, other than trading	(49)	(68)
Net (increase) in trading securities	(2,008)	(4,709)
Provision for credit losses (Note 3)	137	141
Change in derivative instruments - (increase) decrease in derivative asset	6,136	(3,097)
- increase (decrease) in derivative liability	(2,419)	4,068
Amortization of premises and equipment	105	97
Amortization of other assets	53	59
Amortization of intangible assets	133	123
Net decrease in deferred income tax asset	234	606
Net (decrease) in deferred income tax liability	(2)	(27)
Net (increase) decrease in current income tax asset	40	(764)
Net increase (decrease) in current income tax liability	36	(76)
Change in accrued interest - (increase) decrease in interest receivable	(106)	(14)
- increase (decrease) in interest payable	51	(33)
Changes in other items and accruals, net	(1,771)	(3,016)
Net increase in deposits	12,408	7,114
Net (increase) in loans	(14,376)	(4,350)
Net increase in securities sold but not yet purchased	1,624	1,608
Net increase in securities lent or sold under repurchase agreements	21,862	19,293
Net (increase) in securities borrowed or purchased under resale agreements	(16,152)	(10,328)
Net increase (decrease) in securitization and structured entities' liabilities	(1,070)	623
Net Cash Provided by Operating Activities	6,376	8,224
Cash Flows from Financing Activities
Net increase (decrease) in liabilities of subsidiaries	(2,692)	812
Proceeds from issuance of covered bonds	1,878
Redemption of covered bonds	(2,254)	(567)
Proceeds from issuance of subordinated debt (Note 6)		1,566
Proceeds from issuance of common shares (Note 7)	4	48
Common shares repurchased for cancellation (Note 7)	(90)	(294)
Cash dividends paid	(657)	(631)
Net Cash Provided by (Used in) Financing Activities	(3,811)	934
Cash Flows from Investing Activities
Net (increase) decrease in interest bearing deposits with banks	676	(490)
Purchases of securities, other than trading	(15,470)	(8,395)
Maturities of securities, other than trading	4,235	3,310
Proceeds from sales of securities, other than trading	6,560	6,066
Premises and equipment - net (purchases)	(91)	(65)
Purchased and developed software - net (purchases)	(145)	(132)
Net Cash Provided by (Used in) Investing Activities	(4,235)	294
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(2)	(892)
Net increase (decrease) in Cash and Cash Equivalents	(1,672)	8,560
Cash and Cash Equivalents at Beginning of Period	42,142	32,599
Cash and Cash Equivalents at End of Period	40,470	41,159
Net cash provided by operating activities includes:
Interest paid in the period	3,110	1,867
Income taxes paid in the period	404	869
Interest received in the period	5,798	4,334
Dividends received in the period	$ 403	$ 420

Basis of Presentation

Basis of Presentation	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Basis of Presentation	Note 1: Basis of Presentation Bank of Montreal (“the bank”) is a chartered bank under the Bank Act (Canada) These condensed interim consolidated financial statements have been prepared in accordance with International Accounting Standard 34, Interim Financial Reporting Revenue from Contracts with Customers Changes in Accounting Policy Effective November 1, 2018, we adopted IFRS 15 Revenue from Contracts with Customers non-interest non-interest non-interest The following table summarizes the impacts of applying IFRS 15 on our prior period Consolidated Statement of Income: (Canadian $ in millions) For the three months ended October 31, 2018 January 31, 2018 Increase (decrease) in Non-Interest Securities commissions and fees (1 ) (1 ) Deposit and payment service charges (2 ) (3 ) Card fees (32 ) (40 ) Investment management and custodial fees 3 1 Underwriting and advisory fees 2 2 Other 1 1 (29 ) (40 ) Non-Interest Employee compensation 1 - Travel and business development (36 ) (44 ) Professional fees 2 2 Other 2 1 (31 ) (41 ) Provision for income taxes - 1 Net Income 2 -

Securities

Securities	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Securities	Note 2: Securities Classification of Securities The bank’s fair value through profit or loss (“FVTPL”) securities of $12,280 million ($11,611 million as at October 31, 2018) are comprised of $2,677 million mandatorily measured at fair value and $9,603 million designated at fair value ($2,828 million and $8,783 million, respectively, as at October 31, 2018). In addition, our fair value through other comprehensive income (“FVOCI”) securities totalling $66,696 million ($62,440 million as at October 31, 2018), are net of allowance for credit losses of $2 million ($2 million as at October 31, 2018). Amortized cost securities totalling $7,272 million ($6,485 million as at October 31, 2018), are net of allowance for credit losses of $1 million ($1 million as at October 31, 2018). Unrealized Gains and Losses on FVOCI Securities The following table summarizes the unrealized gains and losses: (Canadian $ in millions) January 31, October 31, Cost/ Gross Gross Cost/ Gross Gross Amortized unrealized unrealized Fair value Amortized unrealized unrealized Fair value Issued or guaranteed by: Canadian federal government 13,072 27 17 13,082 12,884 1 80 12,805 Canadian provincial and municipal governments 7,310 54 11 7,353 6,896 8 42 6,862 U.S. federal government 17,393 152 208 17,337 17,403 4 584 16,823 U.S. states, municipalities and agencies 3,936 30 19 3,947 3,694 16 55 3,655 Other governments 5,493 43 5 5,531 4,818 2 30 4,790 National Housing Act (NHA) mortgage-backed securities (MBS) 2,623 11 3 2,631 2,382 6 18 2,370 U.S. agency MBS and collateralized mortgage obligations (CMO) 11,552 12 261 11,303 11,811 2 496 11,317 Corporate debt 5,426 31 9 5,448 3,783 6 33 3,756 Corporate equity 64 - - 64 62 - - 62 Total 66,869 360 533 66,696 63,733 45 1,338 62,440 Unrealized gains (losses) may be offset by related (losses) gains on fair value hedge contracts. Interest Income on Debt Securities The following table presents interest income calculated using the effective interest method: (Canadian $ in millions) For the three months ended January 31, 2019 January 31, 2018 FVOCI - Debt 392 226 Amortized cost 40 49 Total 432 275

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Loans and Allowance for Credit Losses	Note 3: Loans and Allowance for Credit Losses Credit Risk Exposure The following table sets out our credit risk exposure for all loans carried at amortized cost or FVTPL. Stage 1 represents those performing loans carried with a 12 month expected credit loss, Stage 2 represents those performing loans carried with a lifetime expected credit loss, and Stage 3 represents those loans with a lifetime credit loss that are credit impaired. (Canadian $ in millions) January 31, 2019 Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Exceptionally low - - - - Very low 75,843 125 - 75,968 Low 19,340 2,609 - 21,949 Medium 12,279 4,486 - 16,765 High 137 421 - 558 Not rated 4,194 216 - 4,410 Impaired - - 389 389 Allowance for credit losses 21 38 20 79 Carrying amount 111,772 7,819 369 119,960 Loans: Consumer instalment and other personal Exceptionally low 20,706 15 - 20,721 Very low 14,556 115 - 14,671 Low 9,682 298 - 9,980 Medium 9,490 3,996 - 13,486 High 353 1,358 - 1,711 Not rated 2,022 144 - 2,166 Impaired - - 506 506 Allowance for credit losses 83 312 134 529 Carrying amount 56,726 5,614 372 62,712 Loans: Credit cards Exceptionally low 2,201 3 - 2,204 Very low 1,122 15 - 1,137 Low 884 158 - 1,042 Medium 1,796 867 - 2,663 High 135 430 - 565 Not rated 575 1 - 576 Impaired - - - - Allowance for credit losses 41 187 - 228 Carrying amount 6,672 1,287 - 7,959 Loans: Business and government (1) Acceptable Investment grade 123,347 1,000 - 124,347 Sub-investment grade 89,426 9,987 - 99,413 Watchlist - 4,410 - 4,410 Impaired - - 1,124 1,124 Allowance for credit losses 247 329 216 792 Carrying amount 212,526 15,068 908 228,502 Commitments and financial guarantee contracts Acceptable Investment grade 123,079 554 - 123,633 Sub-investment 43,313 6,659 - 49,972 Watchlist - 1,646 - 1,646 Impaired - - 331 331 Allowance for credit losses 129 103 27 259 Carrying amount 166,263 8,756 304 175,323 (1) Includes customers’ liability under acceptances. (Canadian $ in millions) October 31, 2018 Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Exceptionally low - - - - Very low 76,314 125 - 76,439 Low 18,975 2,479 - 21,454 Medium 12,621 3,765 - 16,386 High 90 445 - 535 Not rated 4,250 181 - 4,431 Impaired - - 375 375 Allowance for credit losses 20 37 19 76 Carrying amount 112,230 6,958 356 119,544 Loans: Consumer instalment and other personal Exceptionally low 20,236 20 - 20,256 Very low 13,364 222 - 13,586 Low 12,581 364 - 12,945 Medium 7,707 4,153 - 11,860 High 357 1,427 - 1,784 Not rated 2,105 168 - 2,273 Impaired - - 521 521 Allowance for credit losses 83 312 143 538 Carrying amount 56,267 6,042 378 62,687 Loans: Credit cards Exceptionally low 2,403 4 - 2,407 Very low 1,140 11 - 1,151 Low 943 107 - 1,050 Medium 1,742 874 - 2,616 High 108 428 - 536 Not rated 568 1 - 569 Impaired - - - - Allowance for credit losses 39 191 - 230 Carrying amount 6,865 1,234 - 8,099 Loans: Business and government (1) Acceptable Investment grade 109,774 2,148 - 111,922 Sub-investment grade 88,348 7,308 - 95,656 Watchlist - 4,423 - 4,423 Impaired - - 1,040 1,040 Allowance for credit losses 232 355 208 795 Carrying amount 197,890 13,524 832 212,246 Commitments and financial guarantee contracts Acceptable Investment grade 116,108 1,722 - 117,830 Sub-investment grade 44,895 3,426 - 48,321 Watchlist - 1,650 - 1,650 Impaired - - 242 242 Allowance for credit losses 108 96 27 231 Carrying amount 160,895 6,702 215 167,812 (1) Includes customers’ liability under acceptances. Certain comparative figures have been reclassified to conform with the current period’s presentation. Allowance for Credit Losses (“ACL”) The allowance for credit losses recorded in our Consolidated Balance Sheet is maintained at a level we consider adequate to absorb credit-related losses on our loans and other credit instruments. The allowance for credit losses amounted to $1,887 million at January 31, 2019 of which $1,628 million was recorded in loans and $259 million recorded in other liabilities in our Consolidated Balance Sheet. Significant changes in the gross balances, including originations, maturities and repayments in the normal course of operations, impact the allowance for credit losses. The following table shows the continuity in the loss allowance by each product type for the three months ended January 31, 2019: (Canadian $ in millions) For the three months ended Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Balance as at October 31, 2018 20 38 44 102 Transfer to Stage 1 7 (7 ) - - Transfer to Stage 2 - 2 (2 ) - Transfer to Stage 3 - (2 ) 2 - Net remeasurement of loss allowance (8 ) 9 5 6 Loan originations 2 - - 2 Derecognitions and maturities - (1 ) - (1 ) Total Provision for Credit Losses (“PCL”) (1) 1 1 5 7 Write-offs - - (4 ) (4 ) Recoveries of previous write-offs - - 3 3 Foreign exchange and other - - (3 ) (3 ) Balance as at January 31, 2019 21 39 45 105 Loans: Consumer instalment and other personal Balance as at October 31, 2018 90 326 144 560 Transfer to Stage 1 45 (41 ) (4 ) - Transfer to Stage 2 (4 ) 24 (20 ) - Transfer to Stage 3 (2 ) (26 ) 28 - Net remeasurement of loss allowance (47 ) 53 23 29 Loan originations 13 - - 13 Derecognitions and maturities (4 ) (10 ) - (14 ) Total PCL (1) 1 - 27 28 Write-offs - - (84 ) (84 ) Recoveries of previous write-offs - - 54 54 Foreign exchange and other (1 ) - (6 ) (7 ) Balance as at January 31, 2019 90 326 135 551 Loans: Credit cards Balance as at October 31, 2018 74 219 - 293 Transfer to Stage 1 26 (26 ) - - Transfer to Stage 2 (5 ) 5 - - Transfer to Stage 3 - (40 ) 40 - Net remeasurement of loss allowance (24 ) 63 13 52 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (7 ) - (8 ) Total PCL (1) 1 (5 ) 53 49 Write-offs - - (76 ) (76 ) Recoveries of previous write-offs - - 23 23 Foreign exchange and other - 1 - 1 Balance as at January 31, 2019 75 215 - 290 Loans: Business and government Balance as at October 31, 2018 298 408 209 915 Transfer to Stage 1 69 (68 ) (1 ) - Transfer to Stage 2 (17 ) 23 (6 ) - Transfer to Stage 3 - (13 ) 13 - Net remeasurement of loss allowance (56 ) 59 36 39 Loan originations 60 - - 60 Derecognitions and maturities (23 ) (20 ) - (43 ) Total PCL (1) 33 (19 ) 42 56 Write-offs - - (31 ) (31 ) Recoveries of previous write-offs - - 9 9 Foreign exchange and other 4 - (12 ) (8 ) Balance as at January 31, 2019 335 389 217 941 Total as at January 31, 2019 521 969 397 1,887 Comprised of: Loans 392 866 370 1,628 Other credit instruments (2) 129 103 27 259 (1) Excludes provision for credit losses on other assets of $(3) million. (2) Recorded in other liabilities on the Consolidated Balance Sheet. The following table shows the continuity in the loss allowance by each product type for the three months ended January 31, 2018: (Canadian $ in millions) For the three months ended Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Balance as at November 1, 2017 16 34 49 99 Transfer to Stage 1 9 (9 ) - - Transfer to Stage 2 (1 ) 2 (1 ) - Transfer to Stage 3 - (3 ) 3 - Net remeasurement of loss allowance (1 ) 6 4 9 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (2 ) - (3 ) Total Provision for Credit Losses (“PCL”) (1) 11 (6 ) 6 11 Write-offs - - (7 ) (7 ) Recoveries of previous write-offs - - 2 2 Foreign exchange and other (1 ) (1 ) (3 ) (5 ) Balance as at January 31, 2018 26 27 47 100 Loans: Consumer instalment and other personal Balance as at November 1, 2017 76 357 137 570 Transfer to Stage 1 68 (64 ) (4 ) - Transfer to Stage 2 (6 ) 32 (26 ) - Transfer to Stage 3 (1 ) (52 ) 53 - Net remeasurement of loss allowance (62 ) 59 23 20 Loan originations 9 - - 9 Derecognitions and maturities (5 ) (11 ) - (16 ) Total PCL (1) 3 (36 ) 46 13 Write-offs - - (66 ) (66 ) Recoveries of previous write-offs - - 17 17 Foreign exchange and other - (4 ) (5 ) (9 ) Balance as at January 31, 2018 79 317 129 525 Loans: Credit cards Balance as at November 1, 2017 83 254 - 337 Transfer to Stage 1 60 (60 ) - - Transfer to Stage 2 (13 ) 13 - - Transfer to Stage 3 - (49 ) 49 - Net remeasurement of loss allowance (56 ) 107 10 61 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (10 ) - (11 ) Total PCL (1) (5 ) 1 59 55 Write-offs - - (82 ) (82 ) Recoveries of previous write-offs - - 23 23 Foreign exchange and other (2 ) - - (2 ) Balance as at January 31, 2018 76 255 - 331 Loans: Business and government Balance as at November 1, 2017 268 410 234 912 Transfer to Stage 1 33 (32 ) (1 ) - Transfer to Stage 2 (10 ) 19 (9 ) - Transfer to Stage 3 - (19 ) 19 - Net remeasurement of loss allowance (12 ) 24 54 66 Loan originations 33 - - 33 Derecognitions and maturities (19 ) (18 ) - (37 ) Total PCL (1) 25 (26 ) 63 62 Write-offs - - (50 ) (50 ) Recoveries of previous write-offs - - 8 8 Foreign exchange and other (11 ) (13 ) (16 ) (40 ) Balance as at January 31, 2018 282 371 239 892 Total as at January 31, 2018 463 970 415 1,848 Comprised of: Loans 370 866 388 1,624 Other credit instruments (2) 93 104 27 224 (1) Excludes provision for credit losses on other assets of $nil. (2) Recorded in other liabilities on the Consolidated Balance Sheet. Loans and allowance for credit losses by geographic region are as follows: (Canadian $ in millions) January 31, 2019 October 31, 2018 Gross Allowance for credit losses Allowance for credit losses Net Gross Allowance for credit losses Allowance for credit losses Net By geographic region (1): Canada 247,652 182 695 246,775 244,837 189 689 243,959 United States 140,768 188 556 140,024 131,247 181 574 130,492 Other countries 10,812 - 7 10,805 9,546 - 6 9,540 Total 399,232 370 1,258 397,604 385,630 370 1,269 383,991 (1) Geographic region is based upon country of ultimate risk. (2) Excludes allowance for credit losses on impaired loans of $27 million for other credit instruments, which is included in other liabilities ($27 million as at October 31, 2018). (3) Excludes allowance for credit losses on performing loans of $232 million for other credit instruments, which is included in other liabilities ($204 million as at October 31, 2018). Renegotiated Loans The carrying value of our renegotiated loans was $1,174 million as at January 31, 2019 ($1,129 million as at October 31, 2018), with $604 million classified as performing as at January 31, 2019 ($541 million as at October 31, 2018). Renegotiated loans of $5 million were written off in the three months ended January 31, 2019 ($7 million for the three months ended January 31, 2018).

Transfer of Assets

Transfer of Assets	3 Months Ended
	Jan. 31, 2019
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Transfer of Assets	Note 4: Transfer of Assets Loan Securitization We sell Canadian mortgage loans to bank-sponsored and third-party Canadian securitization programs, including the Canadian Mortgage Bond program, and directly to third-party investors under the NHA-MBS During the three months ended January 31, 2019, we sold $1,596 million of loans to these programs ($1,386 million for the three months ended January 31, 2018). The following table presents the carrying amount and fair value of transferred assets that did not qualify for derecognition and the associated liabilities: (Canadian $ in millions) January 31, 2019 October 31, 2018 Carrying amount Carrying amount of Carrying amount Carrying amount of Residential mortgages 5,789 5,569 Other related assets (2) 10,997 11,640 Total (3) 16,786 16,505 17,209 16,925 (1) Carrying amount of loans is net of allowance for credit losses. (2) Other related assets represent payments received on account of loans pledged under securitization that have not been applied against the associated liabilities. The payments received are held on behalf of the investors in the securitization vehicles until principal payments are required to be made on the associated liabilities. In order to compare all assets supporting the associated liabilities, this amount is added to the carrying amount of the securitized assets in the above table. (3) The fair values of assets and associated liabilities are $16,689 million and $16,611 million, respectively, as at January 31, 2019 ($17,105 million and $16,763 million, respectively, as at October 31, 2018). We retain the mortgage servicing rights for certain mortgage loans purchased or originated in the U.S. which are sold and derecognized. During the three months ended January 31, 2019 we sold $109 million of these loans ($229 million for the three months ended January 31, 2018) and recognized $4 million in mortgage servicing rights ($4 million for the three months ended January 31, 2018) due to our continued involvement.

Acquisitions

Acquisitions	3 Months Ended
	Jan. 31, 2019
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Acquisitions	Note 5: Acquisitions KGS-Alpha On September 1, 2018, we completed the acquisition of the business of KGS, a U.S. fixed income broker-dealer specializing in U.S. mortgage and asset-backed securities in the institutional investor market, for cash consideration of US$304 million (CAD$397 million). During the three months ended January 31, 2019, the purchase price decreased to US$303 million (CAD$396 million) due to a post-closing adjustment based upon working capital. The acquisition was accounted for as a business combination, and the acquired business and corresponding goodwill are included in our Capital Markets reporting segment. As part of this acquisition, we acquired intangible assets of $49 million and goodwill of $54 million. The intangible assets are being amortized over three to fourteen years on an accelerated basis. Goodwill of $32 million related to this acquisition is deductible for tax purposes. The fair values of the assets acquired and liabilities assumed at the date of acquisition are as follows: (Canadian $ in millions) KGS Securities - trading 5,193 Securities borrowed or purchased under resale agreements 5,669 Goodwill and intangible assets 103 Other Assets 583 Total assets 11,548 Securities lent or sold under repurchase agreements 9,563 Securities sold but not yet purchased 1,431 Other liabilities 158 Purchase price 396 The purchase price allocation for KGS is subject to refinement as we complete the valuation of the assets acquired and liabilities assumed.

Deposits and Subordinated Debt

Deposits and Subordinated Debt	3 Months Ended
	Jan. 31, 2019
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Deposits and Subordinated Debt	Note 6: Deposits and Subordinated Debt Deposits (Canadian $ in millions) Payable on demand Payable after notice Payable on a fixed date (4) Total Interest bearing Non-interest January 31, October 31, January 31, October 31, January 31, October 31, January 31, October 31, January 31, October 31, Deposits by: Banks (1) 1,234 1,450 1,301 1,400 1,192 526 27,119 24,531 30,846 27,907 Business and government 29,244 25,266 33,704 33,984 67,174 67,026 184,307 185,901 314,429 312,177 Individuals 3,304 3,476 21,699 21,345 91,827 90,233 70,094 65,790 186,924 180,844 Total (2) (3) 33,782 30,192 56,704 56,729 160,193 157,785 281,520 276,222 532,199 520,928 Booked in: Canada 22,660 21,735 47,517 47,231 85,040 82,091 163,282 160,069 318,499 311,126 United States 10,140 7,395 9,171 9,477 73,972 74,476 81,780 86,805 175,063 178,153 Other countries 982 1,062 16 21 1,181 1,218 36,458 29,348 38,637 31,649 Total 33,782 30,192 56,704 56,729 160,193 157,785 281,520 276,222 532,199 520,928 (1) Includes regulated and central banks. (2) Includes structured notes designated at fair value through profit or loss. (3) As at January 31, 2019 and October 31, 2018, total deposits payable on a fixed date included $32,894 million and $29,673 million, respectively, of federal funds purchased and commercial paper issued and other deposit liabilities. Included in deposits as at January 31, 2019 and October 31, 2018 are $257,118 million and $259,747 million, respectively, of deposits denominated in U.S. dollars, and $42,374 million and $37,427 million, respectively, of deposits denominated in other foreign currencies. (4) Includes $250,565 million of deposits, each greater than one hundred thousand dollars, of which $148,762 million were booked in Canada, $65,353 million were booked in the United States and $36,450 million were booked in other countries ($246,685 million, $145,574 million, $71,770 million and $29,341 million, respectively, as at October 31, 2018). Of the $148,762 million of deposits booked in Canada, $53,539 million mature in less than three months, $9,720 million mature in three to six months, $13,950 million mature in six to twelve months and $71,553 million mature after twelve months ($145,574 million, $55,190 million, $3,836 million, $12,909 million and $73,639 million, respectively, as at October 31, 2018). Certain comparative figures have been reclassified to conform with the current period’s presentation. Subordinated Debt During the three months ended January 31, 2019, we did not issue or redeem any subordinated debt.

Equity

Equity	3 Months Ended
	Jan. 31, 2019
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Equity	Note 7: Equity Preferred and Common Shares Outstanding (1) (Canadian $ in millions, except as noted) January 31, 2019 October 31, 2018 Number of Amount Number of Amount Convertible into… Preferred Shares - Classified as Equity Class B – Series 25 9,425,607 236 9,425,607 236 Class B - Series 26 (2) Class B – Series 26 2,174,393 54 2,174,393 54 Class B - Series 25 (2) Class B – Series 27 20,000,000 500 20,000,000 500 Class B - Series 28 (2)(3) Class B – Series 29 16,000,000 400 16,000,000 400 Class B - Series 30 (2)(3) Class B – Series 31 12,000,000 300 12,000,000 300 Class B - Series 32 (2)(3) Class B – Series 33 8,000,000 200 8,000,000 200 Class B - Series 34 (2)(3) Class B – Series 35 6,000,000 150 6,000,000 150 Not convertible (3) Class B – Series 36 600,000 600 600,000 600 Class B - Series 37 (2)(3) Class B – Series 38 24,000,000 600 24,000,000 600 Class B - Series 39 (2)(3) Class B – Series 40 20,000,000 500 20,000,000 500 Class B - Series 41 (2)(3) Class B – Series 42 16,000,000 400 16,000,000 400 Class B - Series 43 (2)(3) Class B – Series 44 16,000,000 400 16,000,000 400 Class B - Series 45 (2)(3) 4,340 4,340 Common Shares (4) (5) 638,403,636 12,914 639,329,625 12,929 Share Capital 17,254 17,269 (1) For additional information refer to Notes 16 and 20 of our annual consolidated financial statements for the year ended October 31, 2018 on pages 182 and 192 of our 2018 Annual Report. (2) If converted, the holders have the option to convert back to the original preferred shares on subsequent redemption dates. (3) The shares issued include a non-viability non-viable non-viability. (4) The stock options issued under the Stock Option Plan are convertible into 6,950,400 common shares as at January 31, 2019 (6,095,201 common shares as at October 31, 2018). (5) During the three months ended January 31, 2019, we did not issue any common shares under the Shareholder Dividend Reinvestment and Share Purchase Plan and we issued 74,011 common shares under the Stock Option Plan. Preferred Shares During the three months ended January 31, 2019, we did not issue or redeem any preferred shares. Common Shares During the three months ended January 31, 2019, we repurchased for cancellation 1 million common shares under the normal course issuer bid (“NCIB”) which expires on May 31, 2019. On February 26, 2019, we announced our intention, subject to the approval of OSFI and the Toronto Stock Exchange, to initiate a new NCIB for up to 15 million common shares, commencing on or around June 1, 2019. Once approvals are obtained, the share repurchase program will permit BMO to purchase its common shares for the purpose of cancellation. NCIB is a regular part of BMO’s capital management strategy. The timing and amount of purchases under the program are subject to regulatory approvals and to management discretion based on factors such as market conditions and capital levels. We will consult with OSFI before making purchases under the bid. Capital Trust Securities On December 31, 2018, BMO Capital Trust II redeemed all of its issued and outstanding BMO Tier 1 Notes - Series A at a redemption amount equal to $1,000 for an aggregate redemption of $450 million, plus accrued and unpaid interest to but excluding the redemption date.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Jan. 31, 2019
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Fair Value of Financial Instruments	Note 8: Fair Value of Financial Instruments Fair Value of Financial Instruments Not Carried at Fair Value on the Balance Sheet Set out in the following table are the amounts that would be reported if all financial assets and liabilities not currently carried at fair value were reported at their fair values. Refer to Note 17 to our annual consolidated financial statements for the year ended October 31, 2018 on pages 184 to 190 for further discussion on the determination of fair value. (Canadian $ in millions) January 31, 2019 October 31, 2018 Carrying value Fair value Carrying value Fair value Securities Amortized cost 7,272 7,197 6,485 6,288 Loans (1) Residential mortgages 119,960 119,293 119,544 118,609 Consumer instalment and other personal 62,712 62,675 62,687 62,618 Credit cards 7,959 7,959 8,099 8,099 Business and government (2) 204,560 204,717 192,225 191,989 395,191 394,644 382,555 381,315 Deposits (3) 517,063 517,165 506,742 506,581 Securitization and structured entities’ liabilities 23,969 24,016 25,051 24,838 Subordinated debt 6,820 6,953 6,782 6,834 This table excludes financial instruments with a carrying value approximating fair value, including cash and cash equivalents, interest bearing deposits with banks, securities borrowed or purchased under resale agreements, customers’ liability under acceptances, other assets, acceptances, securities lent or sold under repurchase agreements and other liabilities. (1) Carrying value of loans is net of allowance. (2) Excludes $2,429 million of loans classified as FVTPL as at January 31, 2019 ($1,450 million as at October 31, 2018). (3) Excludes $15,136 million of structured note liabilities designated at fair value through profit or loss and accounted for at fair value ($14,186 million as at October 31, 2018). Financial Instruments Designated at Fair Value Most of our structured note liabilities included in deposits have been designated at fair value through profit or loss which aligns the accounting result with the way the portfolio is managed. The fair value and notional amount due at contractual maturity of these structured notes as at January 31, 2019 were $15,136 million and $15,205 million, respectively ($14,186 million and $14,548 million, respectively, as at October 31, 2018). The change in fair value of these structured notes was recorded as a decrease of $400 million in non-interest non-interest non-interest The cumulative change in fair value related to changes in our own credit spread that has been recognized since the notes were designated at fair value to January 31, 2019 was an unrealized loss of $224 million, of this an unrealized loss of $148 million was recorded in other comprehensive income, with an unrealized loss of $76 million recorded through the Consolidated Statement of Income prior to the adoption of IFRS 9 own credit provision in 2015. We designate certain securities held by our insurance subsidiaries that support our insurance liabilities at fair value through profit or loss since the actuarial calculation of insurance liabilities is based on the fair value of the investments supporting them. This designation aligns the accounting result with the way the portfolio is managed on a fair value basis. The change in fair value of the assets is recorded in non-interest non-interest We designate the obligation related to certain investment contracts in our insurance business at fair value through profit or loss, which eliminates a measurement inconsistency that would otherwise arise from measuring the investment contract liabilities and offsetting changes in the fair value of the investments supporting them on a different basis. The fair value of these investment contract liabilities as at January 31, 2019 of $889 million ($800 million as at October 31, 2018) is recorded in other liabilities in our Consolidated Balance Sheet. The change in fair value of these investment contract liabilities resulted in an increase of $37 million in insurance claims, commissions, and changes in policy benefit liabilities for the three months ended January 31, 2019 (a decrease of $14 million for the three months ended January 31, 2018). For the three months ended January 31, 2019, an increase of $1 million was recorded in other comprehensive income related to changes in our own credit spread (a decrease of $9 million for the three months ended January 31, 2018). Changes in the fair value of investments backing these investment contract liabilities are recorded in non-interest Fair Value Hierarchy We use a fair value hierarchy to categorize financial instruments according to the inputs we use in valuation techniques to measure fair value. Valuation Techniques and Significant Inputs We determine the fair value of publicly traded fixed maturity and equity securities using quoted prices in active markets (Level 1) when these are available. When quoted prices in active markets are not available, we determine the fair value of financial instruments using models such as discounted cash flows with observable market data for inputs such as yield and prepayment rates or broker quotes and other third-party vendor quotes (Level 2). Fair value may also be determined using models where significant market inputs are not observable due to inactive markets or minimal market activity (Level 3). We maximize the use of market inputs to the extent possible. Our Level 2 trading and FVTPL securities are primarily valued using discounted cash flow models with observable spreads or broker quotes. The fair value of Level 2 FVOCI securities is determined using discounted cash flow models with observable spreads or third-party vendor quotes. Level 2 structured note liabilities are valued using models with observable market information. Level 2 derivative assets and liabilities are valued using industry standard models and observable market information. The extent of our use of actively quoted market prices (Level 1), internal models using observable market information as inputs (Level 2) and internal models without observable market information as inputs (Level 3) in the valuation of securities, loans, fair value liabilities, derivative assets and derivative liabilities was as follows: (Canadian $ in millions) January 31, 2019 Valued using quoted market prices Valued using models (with observable inputs) Valued using models (without observable inputs) Total Trading Securities Issued or guaranteed by: Canadian federal government 10,494 1,272 - 11,766 Canadian provincial and municipal governments 2,077 6,809 - 8,886 U.S. federal government 19,580 58 - 19,638 U.S. states, municipalities and agencies 2 573 - 575 Other governments 1,119 700 - 1,819 NHA MBS, U.S. agency MBS and CMO 40 10,426 231 10,697 Corporate debt 2,562 5,435 6 8,003 Loans - 393 - 393 Corporate equity 39,707 2 - 39,709 75,581 25,668 237 101,486 FVTPL Securities Issued or guaranteed by: Canadian federal government 558 90 - 648 Canadian provincial and municipal governments 34 993 - 1,027 U.S. federal government 70 - - 70 Other governments - 30 - 30 NHA MBS, U.S. agency MBS and CMO - 6 - 6 Corporate debt 146 7,066 - 7,212 Corporate equity 1,435 66 1,786 3,287 2,243 8,251 1,786 12,280 FVOCI Securities Issued or guaranteed by: Canadian federal government 12,246 836 - 13,082 Canadian provincial and municipal governments 4,940 2,413 - 7,353 U.S. federal government 17,337 - - 17,337 U.S. states, municipalities and agencies 27 3,919 1 3,947 Other governments 3,731 1,800 - 5,531 NHA MBS, U.S. agency MBS and CMO - 13,934 - 13,934 Corporate debt 2,780 2,668 - 5,448 Corporate equity - - 64 64 41,061 25,570 65 66,696 Business and Government Loans - - 2,429 2,429 Fair Value Liabilities Securities sold but not yet purchased 26,579 3,821 7 30,407 Structured note liabilities and other note liabilities - 15,136 - 15,136 Investment contract liabilities - 889 - 889 26,579 19,846 7 46,432 Derivative Assets Interest rate contracts 13 8,389 - 8,402 Foreign exchange contracts 11 11,062 - 11,073 Commodity contracts 165 1,060 - 1,225 Equity contracts 116 781 - 897 Credit default swaps - 36 - 36 305 21,328 - 21,633 Derivative Liabilities Interest rate contracts 28 6,726 - 6,754 Foreign exchange contracts 1 11,767 - 11,768 Commodity contracts 132 1,516 - 1,648 Equity contracts 136 2,797 - 2,933 Credit default swaps - 84 1 85 297 22,890 1 23,188 (Canadian $ in millions) October 31, 2018 Valued using quoted market prices Valued using models (with observable inputs) Valued using models (without observable inputs) Total Trading Securities Issued or guaranteed by: Canadian federal government 9,107 1,213 - 10,320 Canadian provincial and municipal governments 4,013 4,689 - 8,702 U.S. federal government 9,465 52 - 9,517 U.S. states, municipalities and agencies 78 1,138 - 1,216 Other governments 1,210 201 - 1,411 NHA MBS, U.S. agency MBS and CMO 60 8,869 255 9,184 Corporate debt 2,973 6,218 7 9,198 Loans - 199 - 199 Corporate equity 49,946 4 - 49,950 76,852 22,583 262 99,697 FVTPL Securities Issued or guaranteed by: Canadian federal government 328 103 - 431 Canadian provincial and municipal governments 219 727 - 946 U.S. federal government 69 - - 69 NHA MBS, U.S. agency MBS and CMO - 7 - 7 Corporate debt 178 6,643 - 6,821 Corporate equity 1,378 134 1,825 3,337 2,172 7,614 1,825 11,611 FVOCI Securities Issued or guaranteed by: Canadian federal government 11,978 827 - 12,805 Canadian provincial and municipal governments 3,315 3,547 - 6,862 U.S. federal government 16,823 - - 16,823 U.S. states, municipalities and agencies 14 3,640 1 3,655 Other governments 3,143 1,647 - 4,790 NHA MBS, U.S. agency MBS and CMO - 13,687 - 13,687 Corporate debt 1,959 1,797 - 3,756 Corporate equity - - 62 62 37,232 25,145 63 62,440 Business and Government Loans - - 1,450 1,450 Fair Value Liabilities Securities sold but not yet purchased 26,336 2,468 - 28,804 Structured note liabilities and other note liabilities - 14,186 - 14,186 Investment contract liabilities - 800 - 800 26,336 17,454 - 43,790 Derivative Assets Interest rate contracts 18 8,959 - 8,977 Foreign exchange contracts 16 12,983 - 12,999 Commodity contracts 166 1,894 - 2,060 Equity contracts 286 1,872 - 2,158 Credit default swaps - 10 - 10 486 25,718 - 26,204 Derivative Liabilities Interest rate contracts 14 8,620 - 8,634 Foreign exchange contracts 2 11,852 - 11,854 Commodity contracts 295 1,161 - 1,456 Equity contracts 246 2,183 1 2,430 Credit default swaps - 36 1 37 557 23,852 2 24,411 Significant Transfers Our policy is to record transfers of assets and liabilities between fair value hierarchy levels at their fair values as at the end of each reporting period, consistent with the date of the determination of fair value. Transfers between the various fair value hierarchy levels reflect changes in the availability of quoted market prices or observable market inputs that result from changes in market conditions. The following is a discussion of the significant transfers between Level 1, Level 2 and Level 3 balances for the three months ended January 31, 2019. During the three months ended January 31, 2019, $1,704 million of trading securities, $323 million of FVTPL securities, and $607 million of FVOCI securities were transferred from Level 1 to Level 2 due to reduced observability of the inputs used to value these securities. During the three months ended January 31, 2019, $659 million of trading securities, $104 million of FVTPL securities and $1,111 million of FVOCI securities were transferred from Level 2 to Level 1 due to increased availability of quoted prices in active markets. During the three months ended January 31, 2019, $19 million of trading securities were transferred from Level 2 to Level 3 due to changes in the market observability of inputs used in pricing these securities, $17 million were transferred from Level 3 to Level 2 due to the availability of observable price inputs used to value these securities. Changes in Level 3 Fair Value Measurements The table below presents a reconciliation of all changes in Level 3 financial instruments during the three months ended January 31, 2019, including realized and unrealized gains (losses) included in earnings and other comprehensive income. Change in fair value (Canadian $ in millions) For the three months ended January 31, 2019 Balance Included in Included in other Issuances/ Purchases Sales (2) Maturities/ Settlement Transfers into Level 3 Transfers out of Level 3 Fair Value as at January 31, 2019 Change in unrealized gains for instruments Trading Securities NHA MBS and U.S. agency MBS and CMO 255 (5 ) (1 ) 96 (116 ) - 19 (17 ) 231 (1) Corporate debt 7 - - - (1 ) - - - 6 - Total trading securities 262 (5 ) (1 ) 96 (117 ) - 19 (17 ) 237 (1) FVTPL Securities Corporate equity 1,825 14 (4 ) 123 (172 ) - - - 1,786 16 Total FVTPL securities 1,825 14 (4 ) 123 (172 ) - - - 1,786 16 FVOCI Securities Issued or guaranteed by: U.S. states, municipalities and 1 - - - - - - - 1 na Corporate equity 62 - - 2 - - - - 64 na Total FVOCI securities 63 - - 2 - - - - 65 na Business and Government Loans 1,450 7 (4 ) 1,117 - (141 ) - - 2,429 - Fair Value Liabilities Securities sold but not yet purchased - - - - 7 - - - 7 - Total fair value liabilities - - - - 7 - - - 7 - Derivative Liabilities Equity contracts 1 - - - - - - (1 ) - - Credit default swaps 1 - - - - - - - 1 - Total derivative liabilities 2 - - - - - - (1 ) 1 - (1) Foreign exchange translation on financial instruments held by foreign subsidiaries is included in other comprehensive income, net foreign operations. (2) Includes proceeds on securities sold but not yet purchased. na – Not applicable

Capital Management

Capital Management	3 Months Ended
	Jan. 31, 2019
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Capital Management	Note 9: Capital Management Our objective is to maintain a strong capital position in a cost-effective structure that: is appropriate given our target regulatory capital ratios and internal assessment of required economic capital; is consistent with our target credit ratings; underpins our operating groups’ business strategies; and supports depositor, investor and regulator confidence, while building long-term shareholder value. As at January 31, 2019, we met OSFI’s target capital ratio requirements, which include a 2.5% Capital Conservation Buffer, a 1.0% Common Equity Surcharge for Domestic Systemically Important Banks (D-SIBs), a Countercyclical Buffer and a 1.5% Domestic Stability Buffer (DSB) applicable to D-SIBs. In December 2018, OSFI set the level of the DSB at 1.75% effective April 30, 2019. Our capital position as at January 31, 2019 is detailed in the Capital Management section of Management’s Discussion and Analysis of the First Quarter 2019 Report to Shareholders.

Employee Compensation

Employee Compensation	3 Months Ended
	Jan. 31, 2019
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Employee Compensation	Note 10: Employee Compensation Stock Options During the three months ended January 31, 2019, we granted a total of 931,047 stock options (705,398 stock options during the three months ended January 31, 2018). The weighted-average fair value of options granted during the three months ended January 31, 2019 was $10.23 per option ($11.30 per option for the three months ended January 31, 2018). To determine the fair value of the stock option tranches (i.e. the portion that vests each year) on the grant date, the following ranges of values were used for each option pricing assumption: For stock options granted during the three months ended January 31, January 31, Expected dividend yield 5.7% 4.1% Expected share price volatility 20.0% - 20.1% 17.0% - 17.3% Risk-free rate of return 2.5% 2.1% Expected period until exercise (in years) 6.5 - 7.0 6.5 - 7.0 Exercise price ($) 89.90 100.63 Changes to the input assumptions can result in different fair value estimates. Pension and Other Employee Future Benefit Expenses Pension and other employee future benefit expenses are determined as follows: (Canadian $ in millions) Pension benefit plans Other employee future benefit plans For the three months ended January 31, 2019 January 31, 2018 January 31, 2019 January 31, 2018 Current service cost 48 52 2 7 Net interest (income) expense on net defined benefit (asset) liability (5 ) (2 ) 10 12 Past service income (5 ) - - - Administrative expenses 1 1 - - Benefits expense 39 51 12 19 Canada and Quebec pension plan expense 21 20 - - Defined contribution expense 54 59 - - Total pension and other employee future benefit expenses 114 130 12 19

Earnings Per Share

Earnings Per Share	3 Months Ended
	Jan. 31, 2019
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Earnings Per Share	Note 11: Earnings Per Share Basic earnings per share is calculated by dividing net income attributable to our shareholders, after deducting total preferred shares dividends, by the daily average number of fully paid common shares outstanding throughout the period. Diluted earnings per share is calculated in the same manner, with further adjustments made to reflect the dilutive impact of instruments convertible into our common shares. The following tables present our basic and diluted earnings per share: Basic Earnings Per Share (Canadian $ in millions, except as noted) For the three months ended January 31, January 31, Net income attributable to bank shareholders 1,510 973 Dividends on preferred shares (52 ) (45 ) Net income available to common shareholders 1,458 928 Weighted-average number of common shares outstanding (in thousands) 638,927 647,670 Basic earnings per share (Canadian $) 2.28 1.43 Diluted Earnings Per Share Net income available to common shareholders adjusted for impact of dilutive instruments 1,458 928 Weighted-average number of common shares outstanding (in thousands) 638,927 647,670 Effect of dilutive instruments Stock options potentially exercisable (1) 4,704 5,918 Common shares potentially repurchased (3,218 ) (3,733 ) Weighted-average number of diluted common shares outstanding (in thousands) 640,413 649,855 Diluted earnings per share (Canadian $) 2.28 1.43 (1) In computing diluted earnings per share we excluded average stock options outstanding of 1,970,886 with a weighted-average exercise price of $100.69 for the three months ended January 31, 2019 (1,488,521 with a weighted-average exercise price of $121.81 for the three months ended January 31, 2018) as the average share price for the period did not exceed the exercise price.

Income Taxes

Income Taxes	3 Months Ended
	Jan. 31, 2019
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Income Taxes	Note 12: Income Taxes In prior fiscal years, we were reassessed by the Canada Revenue Agency (CRA) for additional income taxes and interest of approximately $169 million, $116 million and $76 million, respectively, for certain 2013, 2012 and 2011 Canadian corporate dividends. In its reassessments, the CRA denied dividend deductions on the basis that the dividends were received as part of a “dividend rental arrangement”. The tax rules raised by the CRA in the reassessments were prospectively addressed in the 2015 and 2018 Canadian Federal Budgets. In the future, it is possible that we may be reassessed for significant income tax for similar activities in 2014 and subsequent years. We remain of the view that our tax filing positions were appropriate and intend to challenge any reassessment.

Operating Segmentation

Operating Segmentation	3 Months Ended
	Jan. 31, 2019
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Operating Segmentation	Note 13: Operating Segmentation Operating Groups We conduct our business through three operating groups, each of which has a distinct mandate. Our operating groups are Personal and Commercial Banking (“P&C”) (comprised of Canadian Personal and Commercial Banking (“Canadian P&C”) and U.S. Personal and Commercial Banking (“U.S. P&C”)), Wealth Management and BMO Capital Markets (“BMO CM”), along with a Corporate Services unit. For additional information refer to Note 25 of the consolidated financial statements for the year ended October 31, 2018 on pages 203 to 205 of the Annual Report. Our results and average assets, grouped by operating segment, are as follows: (Canadian $ in millions) For the three months ended January 31, 2019 Canadian U.S. Wealth BMO CM Corporate Total Net interest income 1,433 1,059 232 561 (113 ) 3,172 Non-interest 521 279 1,908 571 66 3,345 Total Revenue 1,954 1,338 2,140 1,132 (47 ) 6,517 Provision for (recovery of) credit losses on impaired loans 114 15 2 1 (5 ) 127 Provision for (recovery of) credit losses on performing loans 6 (9 ) - 14 (1 ) 10 Total provision for (recovery of) credit losses 120 6 2 15 (6 ) 137 Insurance claims, commissions and changes in policy benefit liabilities - - 926 - - 926 Amortization 79 112 67 33 - 291 Non-interest 882 656 828 759 141 3,266 Income (loss) before taxes 873 564 317 325 (182 ) 1,897 Provision for (recovery of) income taxes 226 120 78 70 (107 ) 387 Net Income 647 444 239 255 (75 ) 1,510 Average Assets 231,556 120,043 38,744 340,273 89,590 820,206 For the three months ended January 31, 2018 Canadian U.S. Wealth BMO CM Corporate Total Net interest income 1,380 903 200 562 (170 ) 2,875 Non-interest 523 268 1,406 522 44 2,763 Total Revenue 1,903 1,171 1,606 1,084 (126 ) 5,638 Provision for (recovery of) credit losses on impaired loans 97 77 1 (1 ) - 174 Provision for (recovery of) credit losses on performing loans 4 (30 ) (2 ) (4 ) (1 ) (33 ) Provision for (recovery of) credit losses (2) 101 47 (1 ) (5 ) (1 ) 141 Insurance claims, commissions and changes in policy benefit liabilities - - 361 - - 361 Amortization 81 112 57 29 - 279 Non-interest 857 597 838 693 136 3,121 Income (loss) before taxes 864 415 351 367 (261 ) 1,736 Provision for (recovery of) income taxes 218 105 85 96 259 763 Net Income 646 310 266 271 (520 ) 973 Average Assets 221,647 104,215 34,281 295,412 71,908 727,463 (1) Corporate Services includes Technology and Operations. We analyze revenue on a taxable equivalent basis (“teb”) at the operating group level. Revenue and the provision for income taxes are increased on tax-exempt before-tax tax-exempt Certain comparative figures have been reclassified to conform with the current period’s presentation, and for changes in accounting policy (Note 1).

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Jan. 31, 2019
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Changes in Accounting Policy	Changes in Accounting Policy Effective November 1, 2018, we adopted IFRS 15 Revenue from Contracts with Customers non-interest non-interest non-interest The following table summarizes the impacts of applying IFRS 15 on our prior period Consolidated Statement of Income: (Canadian $ in millions) For the three months ended October 31, 2018 January 31, 2018 Increase (decrease) in Non-Interest Securities commissions and fees (1 ) (1 ) Deposit and payment service charges (2 ) (3 ) Card fees (32 ) (40 ) Investment management and custodial fees 3 1 Underwriting and advisory fees 2 2 Other 1 1 (29 ) (40 ) Non-Interest Employee compensation 1 - Travel and business development (36 ) (44 ) Professional fees 2 2 Other 2 1 (31 ) (41 ) Provision for income taxes - 1 Net Income 2 -
Loans and Allowances	Allowance for Credit Losses (“ACL”) The allowance for credit losses recorded in our Consolidated Balance Sheet is maintained at a level we consider adequate to absorb credit-related losses on our loans and other credit instruments. The allowance for credit losses amounted to $1,887 million at January 31, 2019 of which $1,628 million was recorded in loans and $259 million recorded in other liabilities in our Consolidated Balance Sheet.
Loan Securitization	Loan Securitization We sell Canadian mortgage loans to bank-sponsored and third-party Canadian securitization programs, including the Canadian Mortgage Bond program, and directly to third-party investors under the NHA-MBS
Stock Options	Stock Options During the three months ended January 31, 2019, we granted a total of 931,047 stock options (705,398 stock options during the three months ended January 31, 2018). The weighted-average fair value of options granted during the three months ended January 31, 2019 was $10.23 per option ($11.30 per option for the three months ended January 31, 2018).
Earnings per share	Basic earnings per share is calculated by dividing net income attributable to our shareholders, after deducting total preferred shares dividends, by the daily average number of fully paid common shares outstanding throughout the period. Diluted earnings per share is calculated in the same manner, with further adjustments made to reflect the dilutive impact of instruments convertible into our common shares.
Income Taxes	In prior fiscal years, we were reassessed by the Canada Revenue Agency (CRA) for additional income taxes and interest of approximately $169 million, $116 million and $76 million, respectively, for certain 2013, 2012 and 2011 Canadian corporate dividends. In its reassessments, the CRA denied dividend deductions on the basis that the dividends were received as part of a “dividend rental arrangement”. The tax rules raised by the CRA in the reassessments were prospectively addressed in the 2015 and 2018 Canadian Federal Budgets. In the future, it is possible that we may be reassessed for significant income tax for similar activities in 2014 and subsequent years. We remain of the view that our tax filing positions were appropriate and intend to challenge any reassessment.
Operating Groups	Operating Groups We conduct our business through three operating groups, each of which has a distinct mandate. Our operating groups are Personal and Commercial Banking (“P&C”) (comprised of Canadian Personal and Commercial Banking (“Canadian P&C”) and U.S. Personal and Commercial Banking (“U.S. P&C”)), Wealth Management and BMO Capital Markets (“BMO CM”), along with a Corporate Services unit.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	3 Months Ended
	Jan. 31, 2019
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Impacts of Applying IFRS 15 on Prior Period Consolidated Statement of Income	The following table summarizes the impacts of applying IFRS 15 on our prior period Consolidated Statement of Income: (Canadian $ in millions) For the three months ended October 31, 2018 January 31, 2018 Increase (decrease) in Non-Interest Securities commissions and fees (1 ) (1 ) Deposit and payment service charges (2 ) (3 ) Card fees (32 ) (40 ) Investment management and custodial fees 3 1 Underwriting and advisory fees 2 2 Other 1 1 (29 ) (40 ) Non-Interest Employee compensation 1 - Travel and business development (36 ) (44 ) Professional fees 2 2 Other 2 1 (31 ) (41 ) Provision for income taxes - 1 Net Income 2 -

Securities (Tables)

Securities (Tables)	3 Months Ended
	Jan. 31, 2019
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Schedule of Unrealized Gains and Losses on Available-for-Sale Securities	Unrealized Gains and Losses on FVOCI Securities The following table summarizes the unrealized gains and losses: (Canadian $ in millions) January 31, October 31, Cost/ Gross Gross Cost/ Gross Gross Amortized unrealized unrealized Fair value Amortized unrealized unrealized Fair value Issued or guaranteed by: Canadian federal government 13,072 27 17 13,082 12,884 1 80 12,805 Canadian provincial and municipal governments 7,310 54 11 7,353 6,896 8 42 6,862 U.S. federal government 17,393 152 208 17,337 17,403 4 584 16,823 U.S. states, municipalities and agencies 3,936 30 19 3,947 3,694 16 55 3,655 Other governments 5,493 43 5 5,531 4,818 2 30 4,790 National Housing Act (NHA) mortgage-backed securities (MBS) 2,623 11 3 2,631 2,382 6 18 2,370 U.S. agency MBS and collateralized mortgage obligations (CMO) 11,552 12 261 11,303 11,811 2 496 11,317 Corporate debt 5,426 31 9 5,448 3,783 6 33 3,756 Corporate equity 64 - - 64 62 - - 62 Total 66,869 360 533 66,696 63,733 45 1,338 62,440 Unrealized gains (losses) may be offset by related (losses) gains on fair value hedge contracts.
Summary of Interest Income Calculated Using the Effective Interest Method	The following table presents interest income calculated using the effective interest method: (Canadian $ in millions) For the three months ended January 31, 2019 January 31, 2018 FVOCI - Debt 392 226 Amortized cost 40 49 Total 432 275

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	3 Months Ended
	Jan. 31, 2019
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Summary of Credit Risk Exposures for Loans Carried at Amortized Cost or FVTPL	The following table sets out our credit risk exposure for all loans carried at amortized cost or FVTPL. Stage 1 represents those performing loans carried with a 12 month expected credit loss, Stage 2 represents those performing loans carried with a lifetime expected credit loss, and Stage 3 represents those loans with a lifetime credit loss that are credit impaired. (Canadian $ in millions) January 31, 2019 Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Exceptionally low - - - - Very low 75,843 125 - 75,968 Low 19,340 2,609 - 21,949 Medium 12,279 4,486 - 16,765 High 137 421 - 558 Not rated 4,194 216 - 4,410 Impaired - - 389 389 Allowance for credit losses 21 38 20 79 Carrying amount 111,772 7,819 369 119,960 Loans: Consumer instalment and other personal Exceptionally low 20,706 15 - 20,721 Very low 14,556 115 - 14,671 Low 9,682 298 - 9,980 Medium 9,490 3,996 - 13,486 High 353 1,358 - 1,711 Not rated 2,022 144 - 2,166 Impaired - - 506 506 Allowance for credit losses 83 312 134 529 Carrying amount 56,726 5,614 372 62,712 Loans: Credit cards Exceptionally low 2,201 3 - 2,204 Very low 1,122 15 - 1,137 Low 884 158 - 1,042 Medium 1,796 867 - 2,663 High 135 430 - 565 Not rated 575 1 - 576 Impaired - - - - Allowance for credit losses 41 187 - 228 Carrying amount 6,672 1,287 - 7,959 Loans: Business and government (1) Acceptable Investment grade 123,347 1,000 - 124,347 Sub-investment grade 89,426 9,987 - 99,413 Watchlist - 4,410 - 4,410 Impaired - - 1,124 1,124 Allowance for credit losses 247 329 216 792 Carrying amount 212,526 15,068 908 228,502 Commitments and financial guarantee contracts Acceptable Investment grade 123,079 554 - 123,633 Sub-investment 43,313 6,659 - 49,972 Watchlist - 1,646 - 1,646 Impaired - - 331 331 Allowance for credit losses 129 103 27 259 Carrying amount 166,263 8,756 304 175,323 (1) Includes customers’ liability under acceptances. (Canadian $ in millions) October 31, 2018 Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Exceptionally low - - - - Very low 76,314 125 - 76,439 Low 18,975 2,479 - 21,454 Medium 12,621 3,765 - 16,386 High 90 445 - 535 Not rated 4,250 181 - 4,431 Impaired - - 375 375 Allowance for credit losses 20 37 19 76 Carrying amount 112,230 6,958 356 119,544 Loans: Consumer instalment and other personal Exceptionally low 20,236 20 - 20,256 Very low 13,364 222 - 13,586 Low 12,581 364 - 12,945 Medium 7,707 4,153 - 11,860 High 357 1,427 - 1,784 Not rated 2,105 168 - 2,273 Impaired - - 521 521 Allowance for credit losses 83 312 143 538 Carrying amount 56,267 6,042 378 62,687 Loans: Credit cards Exceptionally low 2,403 4 - 2,407 Very low 1,140 11 - 1,151 Low 943 107 - 1,050 Medium 1,742 874 - 2,616 High 108 428 - 536 Not rated 568 1 - 569 Impaired - - - - Allowance for credit losses 39 191 - 230 Carrying amount 6,865 1,234 - 8,099 Loans: Business and government (1) Acceptable Investment grade 109,774 2,148 - 111,922 Sub-investment grade 88,348 7,308 - 95,656 Watchlist - 4,423 - 4,423 Impaired - - 1,040 1,040 Allowance for credit losses 232 355 208 795 Carrying amount 197,890 13,524 832 212,246 Commitments and financial guarantee contracts Acceptable Investment grade 116,108 1,722 - 117,830 Sub-investment grade 44,895 3,426 - 48,321 Watchlist - 1,650 - 1,650 Impaired - - 242 242 Allowance for credit losses 108 96 27 231 Carrying amount 160,895 6,702 215 167,812 (1) Includes customers’ liability under acceptances. Certain comparative figures have been reclassified to conform with the current period’s presentation.
Summary of Continuity in Loss Allowance by Each Product Type	The following table shows the continuity in the loss allowance by each product type for the three months ended January 31, 2019: (Canadian $ in millions) For the three months ended Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Balance as at October 31, 2018 20 38 44 102 Transfer to Stage 1 7 (7 ) - - Transfer to Stage 2 - 2 (2 ) - Transfer to Stage 3 - (2 ) 2 - Net remeasurement of loss allowance (8 ) 9 5 6 Loan originations 2 - - 2 Derecognitions and maturities - (1 ) - (1 ) Total Provision for Credit Losses (“PCL”) (1) 1 1 5 7 Write-offs - - (4 ) (4 ) Recoveries of previous write-offs - - 3 3 Foreign exchange and other - - (3 ) (3 ) Balance as at January 31, 2019 21 39 45 105 Loans: Consumer instalment and other personal Balance as at October 31, 2018 90 326 144 560 Transfer to Stage 1 45 (41 ) (4 ) - Transfer to Stage 2 (4 ) 24 (20 ) - Transfer to Stage 3 (2 ) (26 ) 28 - Net remeasurement of loss allowance (47 ) 53 23 29 Loan originations 13 - - 13 Derecognitions and maturities (4 ) (10 ) - (14 ) Total PCL (1) 1 - 27 28 Write-offs - - (84 ) (84 ) Recoveries of previous write-offs - - 54 54 Foreign exchange and other (1 ) - (6 ) (7 ) Balance as at January 31, 2019 90 326 135 551 Loans: Credit cards Balance as at October 31, 2018 74 219 - 293 Transfer to Stage 1 26 (26 ) - - Transfer to Stage 2 (5 ) 5 - - Transfer to Stage 3 - (40 ) 40 - Net remeasurement of loss allowance (24 ) 63 13 52 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (7 ) - (8 ) Total PCL (1) 1 (5 ) 53 49 Write-offs - - (76 ) (76 ) Recoveries of previous write-offs - - 23 23 Foreign exchange and other - 1 - 1 Balance as at January 31, 2019 75 215 - 290 Loans: Business and government Balance as at October 31, 2018 298 408 209 915 Transfer to Stage 1 69 (68 ) (1 ) - Transfer to Stage 2 (17 ) 23 (6 ) - Transfer to Stage 3 - (13 ) 13 - Net remeasurement of loss allowance (56 ) 59 36 39 Loan originations 60 - - 60 Derecognitions and maturities (23 ) (20 ) - (43 ) Total PCL (1) 33 (19 ) 42 56 Write-offs - - (31 ) (31 ) Recoveries of previous write-offs - - 9 9 Foreign exchange and other 4 - (12 ) (8 ) Balance as at January 31, 2019 335 389 217 941 Total as at January 31, 2019 521 969 397 1,887 Comprised of: Loans 392 866 370 1,628 Other credit instruments (2) 129 103 27 259 (1) Excludes provision for credit losses on other assets of $(3) million. (2) Recorded in other liabilities on the Consolidated Balance Sheet. The following table shows the continuity in the loss allowance by each product type for the three months ended January 31, 2018: (Canadian $ in millions) For the three months ended Stage 1 Stage 2 Stage 3 Total Loans: Residential mortgages Balance as at November 1, 2017 16 34 49 99 Transfer to Stage 1 9 (9 ) - - Transfer to Stage 2 (1 ) 2 (1 ) - Transfer to Stage 3 - (3 ) 3 - Net remeasurement of loss allowance (1 ) 6 4 9 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (2 ) - (3 ) Total Provision for Credit Losses (“PCL”) (1) 11 (6 ) 6 11 Write-offs - - (7 ) (7 ) Recoveries of previous write-offs - - 2 2 Foreign exchange and other (1 ) (1 ) (3 ) (5 ) Balance as at January 31, 2018 26 27 47 100 Loans: Consumer instalment and other personal Balance as at November 1, 2017 76 357 137 570 Transfer to Stage 1 68 (64 ) (4 ) - Transfer to Stage 2 (6 ) 32 (26 ) - Transfer to Stage 3 (1 ) (52 ) 53 - Net remeasurement of loss allowance (62 ) 59 23 20 Loan originations 9 - - 9 Derecognitions and maturities (5 ) (11 ) - (16 ) Total PCL (1) 3 (36 ) 46 13 Write-offs - - (66 ) (66 ) Recoveries of previous write-offs - - 17 17 Foreign exchange and other - (4 ) (5 ) (9 ) Balance as at January 31, 2018 79 317 129 525 Loans: Credit cards Balance as at November 1, 2017 83 254 - 337 Transfer to Stage 1 60 (60 ) - - Transfer to Stage 2 (13 ) 13 - - Transfer to Stage 3 - (49 ) 49 - Net remeasurement of loss allowance (56 ) 107 10 61 Loan originations 5 - - 5 Derecognitions and maturities (1 ) (10 ) - (11 ) Total PCL (1) (5 ) 1 59 55 Write-offs - - (82 ) (82 ) Recoveries of previous write-offs - - 23 23 Foreign exchange and other (2 ) - - (2 ) Balance as at January 31, 2018 76 255 - 331 Loans: Business and government Balance as at November 1, 2017 268 410 234 912 Transfer to Stage 1 33 (32 ) (1 ) - Transfer to Stage 2 (10 ) 19 (9 ) - Transfer to Stage 3 - (19 ) 19 - Net remeasurement of loss allowance (12 ) 24 54 66 Loan originations 33 - - 33 Derecognitions and maturities (19 ) (18 ) - (37 ) Total PCL (1) 25 (26 ) 63 62 Write-offs - - (50 ) (50 ) Recoveries of previous write-offs - - 8 8 Foreign exchange and other (11 ) (13 ) (16 ) (40 ) Balance as at January 31, 2018 282 371 239 892 Total as at January 31, 2018 463 970 415 1,848 Comprised of: Loans 370 866 388 1,624 Other credit instruments (2) 93 104 27 224 (1) Excludes provision for credit losses on other assets of $nil. (2) Recorded in other liabilities on the Consolidated Balance Sheet.
Schedule of Loans and Allowance for Credit Losses by Geographic Region	Loans and allowance for credit losses by geographic region are as follows: (Canadian $ in millions) January 31, 2019 October 31, 2018 Gross Allowance for credit losses Allowance for credit losses Net Gross Allowance for credit losses Allowance for credit losses Net By geographic region (1): Canada 247,652 182 695 246,775 244,837 189 689 243,959 United States 140,768 188 556 140,024 131,247 181 574 130,492 Other countries 10,812 - 7 10,805 9,546 - 6 9,540 Total 399,232 370 1,258 397,604 385,630 370 1,269 383,991 (1) Geographic region is based upon country of ultimate risk. (2) Excludes allowance for credit losses on impaired loans of $27 million for other credit instruments, which is included in other liabilities ($27 million as at October 31, 2018). (3) Excludes allowance for credit losses on performing loans of $232 million for other credit instruments, which is included in other liabilities ($204 million as at October 31, 2018).

Transfer of Assets (Tables)

Transfer of Assets (Tables)	3 Months Ended
	Jan. 31, 2019
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Summary of Carrying Amount and Fair Value of Transferred Assets That Did Not Qualify for Derecognition and Associated Liabilities	The following table presents the carrying amount and fair value of transferred assets that did not qualify for derecognition and the associated liabilities: (Canadian $ in millions) January 31, 2019 October 31, 2018 Carrying amount Carrying amount of Carrying amount Carrying amount of Residential mortgages 5,789 5,569 Other related assets (2) 10,997 11,640 Total (3) 16,786 16,505 17,209 16,925 (1) Carrying amount of loans is net of allowance for credit losses. (2) Other related assets represent payments received on account of loans pledged under securitization that have not been applied against the associated liabilities. The payments received are held on behalf of the investors in the securitization vehicles until principal payments are required to be made on the associated liabilities. In order to compare all assets supporting the associated liabilities, this amount is added to the carrying amount of the securitized assets in the above table. (3) The fair values of assets and associated liabilities are $16,689 million and $16,611 million, respectively, as at January 31, 2019 ($17,105 million and $16,763 million, respectively, as at October 31, 2018).

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Jan. 31, 2019
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Summary of Fair Value of Assets Acquired and Liabilities Assumed at The Date of Acquisition	The fair values of the assets acquired and liabilities assumed at the date of acquisition are as follows: (Canadian $ in millions) KGS Securities - trading 5,193 Securities borrowed or purchased under resale agreements 5,669 Goodwill and intangible assets 103 Other Assets 583 Total assets 11,548 Securities lent or sold under repurchase agreements 9,563 Securities sold but not yet purchased 1,431 Other liabilities 158 Purchase price 396 The purchase price allocation for KGS is subject to refinement as we complete the valuation of the assets acquired and liabilities assumed.

Deposits and Subordinated Debt

Deposits and Subordinated Debt (Tables)	3 Months Ended
	Jan. 31, 2019
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Summary of Deposits	(Canadian $ in millions) Payable on demand Payable after notice Payable on a fixed date (4) Total Interest bearing Non-interest January 31, October 31, January 31, October 31, January 31, October 31, January 31, October 31, January 31, October 31, Deposits by: Banks (1) 1,234 1,450 1,301 1,400 1,192 526 27,119 24,531 30,846 27,907 Business and government 29,244 25,266 33,704 33,984 67,174 67,026 184,307 185,901 314,429 312,177 Individuals 3,304 3,476 21,699 21,345 91,827 90,233 70,094 65,790 186,924 180,844 Total (2) (3) 33,782 30,192 56,704 56,729 160,193 157,785 281,520 276,222 532,199 520,928 Booked in: Canada 22,660 21,735 47,517 47,231 85,040 82,091 163,282 160,069 318,499 311,126 United States 10,140 7,395 9,171 9,477 73,972 74,476 81,780 86,805 175,063 178,153 Other countries 982 1,062 16 21 1,181 1,218 36,458 29,348 38,637 31,649 Total 33,782 30,192 56,704 56,729 160,193 157,785 281,520 276,222 532,199 520,928 (1) Includes regulated and central banks. (2) Includes structured notes designated at fair value through profit or loss. (3) As at January 31, 2019 and October 31, 2018, total deposits payable on a fixed date included $32,894 million and $29,673 million, respectively, of federal funds purchased and commercial paper issued and other deposit liabilities. Included in deposits as at January 31, 2019 and October 31, 2018 are $257,118 million and $259,747 million, respectively, of deposits denominated in U.S. dollars, and $42,374 million and $37,427 million, respectively, of deposits denominated in other foreign currencies. (4) Includes $250,565 million of deposits, each greater than one hundred thousand dollars, of which $148,762 million were booked in Canada, $65,353 million were booked in the United States and $36,450 million were booked in other countries ($246,685 million, $145,574 million, $71,770 million and $29,341 million, respectively, as at October 31, 2018). Of the $148,762 million of deposits booked in Canada, $53,539 million mature in less than three months, $9,720 million mature in three to six months, $13,950 million mature in six to twelve months and $71,553 million mature after twelve months ($145,574 million, $55,190 million, $3,836 million, $12,909 million and $73,639 million, respectively, as at October 31, 2018). Certain comparative figures have been reclassified to conform with the current period’s presentation.

Equity (Tables)

Equity (Tables)	3 Months Ended
	Jan. 31, 2019
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Summary of Classes of Preferred and Common Shares Outstanding	Preferred and Common Shares Outstanding (1) (Canadian $ in millions, except as noted) January 31, 2019 October 31, 2018 Number of Amount Number of Amount Convertible into… Preferred Shares - Classified as Equity Class B – Series 25 9,425,607 236 9,425,607 236 Class B - Series 26 (2) Class B – Series 26 2,174,393 54 2,174,393 54 Class B - Series 25 (2) Class B – Series 27 20,000,000 500 20,000,000 500 Class B - Series 28 (2)(3) Class B – Series 29 16,000,000 400 16,000,000 400 Class B - Series 30 (2)(3) Class B – Series 31 12,000,000 300 12,000,000 300 Class B - Series 32 (2)(3) Class B – Series 33 8,000,000 200 8,000,000 200 Class B - Series 34 (2)(3) Class B – Series 35 6,000,000 150 6,000,000 150 Not convertible (3) Class B – Series 36 600,000 600 600,000 600 Class B - Series 37 (2)(3) Class B – Series 38 24,000,000 600 24,000,000 600 Class B - Series 39 (2)(3) Class B – Series 40 20,000,000 500 20,000,000 500 Class B - Series 41 (2)(3) Class B – Series 42 16,000,000 400 16,000,000 400 Class B - Series 43 (2)(3) Class B – Series 44 16,000,000 400 16,000,000 400 Class B - Series 45 (2)(3) 4,340 4,340 Common Shares (4) (5) 638,403,636 12,914 639,329,625 12,929 Share Capital 17,254 17,269 (1) For additional information refer to Notes 16 and 20 of our annual consolidated financial statements for the year ended October 31, 2018 on pages 182 and 192 of our 2018 Annual Report. (2) If converted, the holders have the option to convert back to the original preferred shares on subsequent redemption dates. (3) The shares issued include a non-viability non-viable non-viability. (4) The stock options issued under the Stock Option Plan are convertible into 6,950,400 common shares as at January 31, 2019 (6,095,201 common shares as at October 31, 2018). (5) During the three months ended January 31, 2019, we did not issue any common shares under the Shareholder Dividend Reinvestment and Share Purchase Plan and we issued 74,011 common shares under the Stock Option Plan.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Fair Value of Financial Instruments Not Carried at Fair Value on the Balance Sheet	Fair Value of Financial Instruments Not Carried at Fair Value on the Balance Sheet Set out in the following table are the amounts that would be reported if all financial assets and liabilities not currently carried at fair value were reported at their fair values. Refer to Note 17 to our annual consolidated financial statements for the year ended October 31, 2018 on pages 184 to 190 for further discussion on the determination of fair value. (Canadian $ in millions) January 31, 2019 October 31, 2018 Carrying value Fair value Carrying value Fair value Securities Amortized cost 7,272 7,197 6,485 6,288 Loans (1) Residential mortgages 119,960 119,293 119,544 118,609 Consumer instalment and other personal 62,712 62,675 62,687 62,618 Credit cards 7,959 7,959 8,099 8,099 Business and government (2) 204,560 204,717 192,225 191,989 395,191 394,644 382,555 381,315 Deposits (3) 517,063 517,165 506,742 506,581 Securitization and structured entities’ liabilities 23,969 24,016 25,051 24,838 Subordinated debt 6,820 6,953 6,782 6,834 This table excludes financial instruments with a carrying value approximating fair value, including cash and cash equivalents, interest bearing deposits with banks, securities borrowed or purchased under resale agreements, customers’ liability under acceptances, other assets, acceptances, securities lent or sold under repurchase agreements and other liabilities. (1) Carrying value of loans is net of allowance. (2) Excludes $2,429 million of loans classified as FVTPL as at January 31, 2019 ($1,450 million as at October 31, 2018). (3) Excludes $15,136 million of structured note liabilities designated at fair value through profit or loss and accounted for at fair value ($14,186 million as at October 31, 2018).
Summary of Assets and Liabilities categorized by the Fair Value Hierarchy	The extent of our use of actively quoted market prices (Level 1), internal models using observable market information as inputs (Level 2) and internal models without observable market information as inputs (Level 3) in the valuation of securities, loans, fair value liabilities, derivative assets and derivative liabilities was as follows: (Canadian $ in millions) January 31, 2019 Valued using quoted market prices Valued using models (with observable inputs) Valued using models (without observable inputs) Total Trading Securities Issued or guaranteed by: Canadian federal government 10,494 1,272 - 11,766 Canadian provincial and municipal governments 2,077 6,809 - 8,886 U.S. federal government 19,580 58 - 19,638 U.S. states, municipalities and agencies 2 573 - 575 Other governments 1,119 700 - 1,819 NHA MBS, U.S. agency MBS and CMO 40 10,426 231 10,697 Corporate debt 2,562 5,435 6 8,003 Loans - 393 - 393 Corporate equity 39,707 2 - 39,709 75,581 25,668 237 101,486 FVTPL Securities Issued or guaranteed by: Canadian federal government 558 90 - 648 Canadian provincial and municipal governments 34 993 - 1,027 U.S. federal government 70 - - 70 Other governments - 30 - 30 NHA MBS, U.S. agency MBS and CMO - 6 - 6 Corporate debt 146 7,066 - 7,212 Corporate equity 1,435 66 1,786 3,287 2,243 8,251 1,786 12,280 FVOCI Securities Issued or guaranteed by: Canadian federal government 12,246 836 - 13,082 Canadian provincial and municipal governments 4,940 2,413 - 7,353 U.S. federal government 17,337 - - 17,337 U.S. states, municipalities and agencies 27 3,919 1 3,947 Other governments 3,731 1,800 - 5,531 NHA MBS, U.S. agency MBS and CMO - 13,934 - 13,934 Corporate debt 2,780 2,668 - 5,448 Corporate equity - - 64 64 41,061 25,570 65 66,696 Business and Government Loans - - 2,429 2,429 Fair Value Liabilities Securities sold but not yet purchased 26,579 3,821 7 30,407 Structured note liabilities and other note liabilities - 15,136 - 15,136 Investment contract liabilities - 889 - 889 26,579 19,846 7 46,432 Derivative Assets Interest rate contracts 13 8,389 - 8,402 Foreign exchange contracts 11 11,062 - 11,073 Commodity contracts 165 1,060 - 1,225 Equity contracts 116 781 - 897 Credit default swaps - 36 - 36 305 21,328 - 21,633 Derivative Liabilities Interest rate contracts 28 6,726 - 6,754 Foreign exchange contracts 1 11,767 - 11,768 Commodity contracts 132 1,516 - 1,648 Equity contracts 136 2,797 - 2,933 Credit default swaps - 84 1 85 297 22,890 1 23,188 (Canadian $ in millions) October 31, 2018 Valued using quoted market prices Valued using models (with observable inputs) Valued using models (without observable inputs) Total Trading Securities Issued or guaranteed by: Canadian federal government 9,107 1,213 - 10,320 Canadian provincial and municipal governments 4,013 4,689 - 8,702 U.S. federal government 9,465 52 - 9,517 U.S. states, municipalities and agencies 78 1,138 - 1,216 Other governments 1,210 201 - 1,411 NHA MBS, U.S. agency MBS and CMO 60 8,869 255 9,184 Corporate debt 2,973 6,218 7 9,198 Loans - 199 - 199 Corporate equity 49,946 4 - 49,950 76,852 22,583 262 99,697 FVTPL Securities Issued or guaranteed by: Canadian federal government 328 103 - 431 Canadian provincial and municipal governments 219 727 - 946 U.S. federal government 69 - - 69 NHA MBS, U.S. agency MBS and CMO - 7 - 7 Corporate debt 178 6,643 - 6,821 Corporate equity 1,378 134 1,825 3,337 2,172 7,614 1,825 11,611 FVOCI Securities Issued or guaranteed by: Canadian federal government 11,978 827 - 12,805 Canadian provincial and municipal governments 3,315 3,547 - 6,862 U.S. federal government 16,823 - - 16,823 U.S. states, municipalities and agencies 14 3,640 1 3,655 Other governments 3,143 1,647 - 4,790 NHA MBS, U.S. agency MBS and CMO - 13,687 - 13,687 Corporate debt 1,959 1,797 - 3,756 Corporate equity - - 62 62 37,232 25,145 63 62,440 Business and Government Loans - - 1,450 1,450 Fair Value Liabilities Securities sold but not yet purchased 26,336 2,468 - 28,804 Structured note liabilities and other note liabilities - 14,186 - 14,186 Investment contract liabilities - 800 - 800 26,336 17,454 - 43,790 Derivative Assets Interest rate contracts 18 8,959 - 8,977 Foreign exchange contracts 16 12,983 - 12,999 Commodity contracts 166 1,894 - 2,060 Equity contracts 286 1,872 - 2,158 Credit default swaps - 10 - 10 486 25,718 - 26,204 Derivative Liabilities Interest rate contracts 14 8,620 - 8,634 Foreign exchange contracts 2 11,852 - 11,854 Commodity contracts 295 1,161 - 1,456 Equity contracts 246 2,183 1 2,430 Credit default swaps - 36 1 37 557 23,852 2 24,411
Summary of Changes in Level 3 Instruments Carried At Fair Value	The table below presents a reconciliation of all changes in Level 3 financial instruments during the three months ended January 31, 2019, including realized and unrealized gains (losses) included in earnings and other comprehensive income. Change in fair value (Canadian $ in millions) For the three months ended January 31, 2019 Balance Included in Included in other Issuances/ Purchases Sales (2) Maturities/ Settlement Transfers into Level 3 Transfers out of Level 3 Fair Value as at January 31, 2019 Change in unrealized gains for instruments Trading Securities NHA MBS and U.S. agency MBS and CMO 255 (5 ) (1 ) 96 (116 ) - 19 (17 ) 231 (1) Corporate debt 7 - - - (1 ) - - - 6 - Total trading securities 262 (5 ) (1 ) 96 (117 ) - 19 (17 ) 237 (1) FVTPL Securities Corporate equity 1,825 14 (4 ) 123 (172 ) - - - 1,786 16 Total FVTPL securities 1,825 14 (4 ) 123 (172 ) - - - 1,786 16 FVOCI Securities Issued or guaranteed by: U.S. states, municipalities and 1 - - - - - - - 1 na Corporate equity 62 - - 2 - - - - 64 na Total FVOCI securities 63 - - 2 - - - - 65 na Business and Government Loans 1,450 7 (4 ) 1,117 - (141 ) - - 2,429 - Fair Value Liabilities Securities sold but not yet purchased - - - - 7 - - - 7 - Total fair value liabilities - - - - 7 - - - 7 - Derivative Liabilities Equity contracts 1 - - - - - - (1 ) - - Credit default swaps 1 - - - - - - - 1 - Total derivative liabilities 2 - - - - - - (1 ) 1 - (1) Foreign exchange translation on financial instruments held by foreign subsidiaries is included in other comprehensive income, net foreign operations. (2) Includes proceeds on securities sold but not yet purchased. na – Not applicable

Employee Compensation (Tables)

Employee Compensation (Tables)	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Summary of Ranges of Values used for each Option Pricing Assumption	To determine the fair value of the stock option tranches (i.e. the portion that vests each year) on the grant date, the following ranges of values were used for each option pricing assumption: For stock options granted during the three months ended January 31, January 31, Expected dividend yield 5.7% 4.1% Expected share price volatility 20.0% - 20.1% 17.0% - 17.3% Risk-free rate of return 2.5% 2.1% Expected period until exercise (in years) 6.5 - 7.0 6.5 - 7.0 Exercise price ($) 89.90 100.63 Changes to the input assumptions can result in different fair value estimates.
Summary of Pension and Other Employee Future Benefit Expenses	Pension and Other Employee Future Benefit Expenses Pension and other employee future benefit expenses are determined as follows: (Canadian $ in millions) Pension benefit plans Other employee future benefit plans For the three months ended January 31, 2019 January 31, 2018 January 31, 2019 January 31, 2018 Current service cost 48 52 2 7 Net interest (income) expense on net defined benefit (asset) liability (5 ) (2 ) 10 12 Past service income (5 ) - - - Administrative expenses 1 1 - - Benefits expense 39 51 12 19 Canada and Quebec pension plan expense 21 20 - - Defined contribution expense 54 59 - - Total pension and other employee future benefit expenses 114 130 12 19

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Summary of Basic and Diluted Earnings Per Share	The following tables present our basic and diluted earnings per share: Basic Earnings Per Share (Canadian $ in millions, except as noted) For the three months ended January 31, January 31, Net income attributable to bank shareholders 1,510 973 Dividends on preferred shares (52 ) (45 ) Net income available to common shareholders 1,458 928 Weighted-average number of common shares outstanding (in thousands) 638,927 647,670 Basic earnings per share (Canadian $) 2.28 1.43 Diluted Earnings Per Share Net income available to common shareholders adjusted for impact of dilutive instruments 1,458 928 Weighted-average number of common shares outstanding (in thousands) 638,927 647,670 Effect of dilutive instruments Stock options potentially exercisable (1) 4,704 5,918 Common shares potentially repurchased (3,218 ) (3,733 ) Weighted-average number of diluted common shares outstanding (in thousands) 640,413 649,855 Diluted earnings per share (Canadian $) 2.28 1.43 (1) In computing diluted earnings per share we excluded average stock options outstanding of 1,970,886 with a weighted-average exercise price of $100.69 for the three months ended January 31, 2019 (1,488,521 with a weighted-average exercise price of $121.81 for the three months ended January 31, 2018) as the average share price for the period did not exceed the exercise price.

Operating Segmentation (Tables)

Operating Segmentation (Tables)	3 Months Ended
	Jan. 31, 2019
Text block [abstract]
Schedule of Operating Segments	Our results and average assets, grouped by operating segment, are as follows: (Canadian $ in millions) For the three months ended January 31, 2019 Canadian U.S. Wealth BMO CM Corporate Total Net interest income 1,433 1,059 232 561 (113 ) 3,172 Non-interest 521 279 1,908 571 66 3,345 Total Revenue 1,954 1,338 2,140 1,132 (47 ) 6,517 Provision for (recovery of) credit losses on impaired loans 114 15 2 1 (5 ) 127 Provision for (recovery of) credit losses on performing loans 6 (9 ) - 14 (1 ) 10 Total provision for (recovery of) credit losses 120 6 2 15 (6 ) 137 Insurance claims, commissions and changes in policy benefit liabilities - - 926 - - 926 Amortization 79 112 67 33 - 291 Non-interest 882 656 828 759 141 3,266 Income (loss) before taxes 873 564 317 325 (182 ) 1,897 Provision for (recovery of) income taxes 226 120 78 70 (107 ) 387 Net Income 647 444 239 255 (75 ) 1,510 Average Assets 231,556 120,043 38,744 340,273 89,590 820,206 For the three months ended January 31, 2018 Canadian U.S. Wealth BMO CM Corporate Total Net interest income 1,380 903 200 562 (170 ) 2,875 Non-interest 523 268 1,406 522 44 2,763 Total Revenue 1,903 1,171 1,606 1,084 (126 ) 5,638 Provision for (recovery of) credit losses on impaired loans 97 77 1 (1 ) - 174 Provision for (recovery of) credit losses on performing loans 4 (30 ) (2 ) (4 ) (1 ) (33 ) Provision for (recovery of) credit losses (2) 101 47 (1 ) (5 ) (1 ) 141 Insurance claims, commissions and changes in policy benefit liabilities - - 361 - - 361 Amortization 81 112 57 29 - 279 Non-interest 857 597 838 693 136 3,121 Income (loss) before taxes 864 415 351 367 (261 ) 1,736 Provision for (recovery of) income taxes 218 105 85 96 259 763 Net Income 646 310 266 271 (520 ) 973 Average Assets 221,647 104,215 34,281 295,412 71,908 727,463 (1) Corporate Services includes Technology and Operations. We analyze revenue on a taxable equivalent basis (“teb”) at the operating group level. Revenue and the provision for income taxes are increased on tax-exempt before-tax tax-exempt Certain comparative figures have been reclassified to conform with the current period’s presentation and for changes in accounting policy (Note 1).

Basis of Presentation - Impacts

Basis of Presentation - Impacts of Applying IFRS 15 on Prior Period Consolidated Statement of Income (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Non-Interest Revenue
Securities commissions and fees	$ 248	$ 256	$ 261
Deposit and payment service charges	291	290	276
Card fees	105	111	88
Investment management and custodial fees	428	441	424
Underwriting and advisory fees	244	244	221
Other	147	132	138
Non-Interest Revenue	3,345	2,878	2,763
Non-Interest Expense
Employee compensation	2,072	1,613	1,963
Travel and business development	126	150	113
Professional fees	121	160	125
Other	303	330	345
Non-Interest Expense	3,557	3,193	3,400
Provision for income taxes	(387)	(438)	(763)
Net Income	$ 1,510	1,697	973
Increase (decrease) due to application of IFRS 15 [member]
Non-Interest Revenue
Securities commissions and fees		(1)	(1)
Deposit and payment service charges		(2)	(3)
Card fees		(32)	(40)
Investment management and custodial fees		3	1
Underwriting and advisory fees		2	2
Other		1	1
Non-Interest Revenue		(29)	(40)
Non-Interest Expense
Employee compensation		1
Travel and business development		(36)	(44)
Professional fees		2	2
Other		2	1
Non-Interest Expense		(31)	(41)
Provision for income taxes			$ 1
Net Income		$ 2

Securities - Additional Informa

Securities - Additional Information (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of financial assets [line items]
Fair value through profit or loss ("FVTPL") securities	$ 12,280	$ 11,611	$ 11,261
FVOCI securities	66,696	62,440	49,755
Amortized cost	7,272	6,485	$ 8,455
Mandatorily measured at fair value [member]
Disclosure of financial assets [line items]
Fair value through profit or loss ("FVTPL") securities	2,677	2,828
Designated at fair value [member]
Disclosure of financial assets [line items]
Fair value through profit or loss ("FVTPL") securities	9,603	8,783
Allowance for credit losses on securities [member]
Disclosure of financial assets [line items]
FVOCI securities	2	2
Amortized cost	$ 1	$ 1

Securities - Schedule of Unreal

Securities - Schedule of Unrealized Gains and Losses (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of financial assets [line items]
FVOCI securities	$ 66,696	$ 62,440	$ 49,755
Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	66,869	63,733
Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	360	45
Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(533)	(1,338)
Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	66,696	62,440
Canadian federal government [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	13,072	12,884
Canadian federal government [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	27	1
Canadian federal government [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(17)	(80)
Canadian federal government [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	13,082	12,805
Canadian Provincial And Municipal Governments [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	7,310	6,896
Canadian Provincial And Municipal Governments [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	54	8
Canadian Provincial And Municipal Governments [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(11)	(42)
Canadian Provincial And Municipal Governments [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	7,353	6,862
US federal Government [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	17,393	17,403
US federal Government [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	152	4
US federal Government [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(208)	(584)
US federal Government [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	17,337	16,823
US State Municipal And Agencies Debt [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	3,936	3,694
US State Municipal And Agencies Debt [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	30	16
US State Municipal And Agencies Debt [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(19)	(55)
US State Municipal And Agencies Debt [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	3,947	3,655
Other governments member [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	5,493	4,818
Other governments member [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	43	2
Other governments member [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(5)	(30)
Other governments member [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	5,531	4,790
National Housing Act Mortgage Backed Securities and Collateralized Mortgage Obligations [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	2,623	2,382
National Housing Act Mortgage Backed Securities and Collateralized Mortgage Obligations [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	11	6
National Housing Act Mortgage Backed Securities and Collateralized Mortgage Obligations [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(3)	(18)
National Housing Act Mortgage Backed Securities and Collateralized Mortgage Obligations [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	2,631	2,370
US Agency MBS and CMO [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	11,552	11,811
US Agency MBS and CMO [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	12	2
US Agency MBS and CMO [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(261)	(496)
US Agency MBS and CMO [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	11,303	11,317
Corporate debt [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	5,426	3,783
Corporate debt [member] | Gross Unrealized Gains [member]
Disclosure of financial assets [line items]
FVOCI securities	31	6
Corporate debt [member] | Gross Unrealized Losses [member]
Disclosure of financial assets [line items]
FVOCI securities	(9)	(33)
Corporate debt [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	5,448	3,756
Corporate equity [member] | Cost/Amortized Cost [member]
Disclosure of financial assets [line items]
FVOCI securities	64	62
Corporate equity [member] | Financial assets at fair value, class [member]
Disclosure of financial assets [line items]
FVOCI securities	$ 64	$ 62

Securities - Summary of Interes

Securities - Summary of Interest Income Calculated Using Effective Interest Method (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Disclosure Of Interest Income [line items]
Total	$ 432	$ 275
Financial assets at fair value through other comprehensive income, category [member]
Disclosure Of Interest Income [line items]
Total	392	226
Amortised cost [member]
Disclosure Of Interest Income [line items]
Total	$ 40	$ 49

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Summary of Credit Risk Exposures for Loans Carried at Amortized Cost or FVTPL (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018
Disclosure of credit risk exposure [line items]
Allowance for credit losses	$ 1,887
Residential mortgages [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	119,960	$ 119,544
Residential mortgages [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	79	76
Residential mortgages [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	389	375
Residential mortgages [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	75,968	76,439
Residential mortgages [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	21,949	21,454
Residential mortgages [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	16,765	16,386
Residential mortgages [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	558	535
Residential mortgages [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	4,410	4,431
Consumer installment and other personal loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	62,712	62,687
Consumer installment and other personal loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	529	538
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	506	521
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	20,721	20,256
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	14,671	13,586
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	9,980	12,945
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	13,486	11,860
Consumer installment and other personal loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,711	1,784
Consumer installment and other personal loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,166	2,273
Credit Card Loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	7,959	8,099
Credit Card Loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	228	230
Credit Card Loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,204	2,407
Credit Card Loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,137	1,151
Credit Card Loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,042	1,050
Credit Card Loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,663	2,616
Credit Card Loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	565	536
Credit Card Loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	576	569
Business and government loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	228,502	212,246
Business and government loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	792	795
Business and government loans [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,124	1,040
Business and government loans [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	124,347	111,922
Business and government loans [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	99,413	95,656
Business and government loans [member] | Gross carrying amount [member] | Watch list [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	4,410	4,423
Loan commitments and financial guarantee contracts issued [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	175,323	167,812
Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	259	231
Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	331	242
Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	123,633	117,830
Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	49,972	48,321
Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Watch list [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	1,646	1,650
Stage One [member] | Residential mortgages [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	111,772	112,230
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	21	20
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	75,843	76,314
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	19,340	18,975
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	12,279	12,621
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	137	90
Stage One [member] | Residential mortgages [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	4,194	4,250
Stage One [member] | Consumer installment and other personal loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	56,726	56,267
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	83	83
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	20,706	20,236
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	14,556	13,364
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	9,682	12,581
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	9,490	7,707
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	353	357
Stage One [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,022	2,105
Stage One [member] | Credit Card Loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	6,672	6,865
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	41	39
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,201	2,403
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,122	1,140
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	884	943
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,796	1,742
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	135	108
Stage One [member] | Credit Card Loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	575	568
Stage One [member] | Business and government loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	212,526	197,890
Stage One [member] | Business and government loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	247	232
Stage One [member] | Business and government loans [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	123,347	109,774
Stage One [member] | Business and government loans [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	89,426	88,348
Stage One [member] | Loan commitments and financial guarantee contracts issued [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	166,263	160,895
Stage One [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	129	108
Stage One [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	123,079	116,108
Stage One [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	43,313	44,895
Stage Two [member] | Residential mortgages [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	7,819	6,958
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	38	37
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	125	125
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	2,609	2,479
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	4,486	3,765
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	421	445
Stage Two [member] | Residential mortgages [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	216	181
Stage Two [member] | Consumer installment and other personal loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	5,614	6,042
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	312	312
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	15	20
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	115	222
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	298	364
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	3,996	4,153
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,358	1,427
Stage Two [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	144	168
Stage Two [member] | Credit Card Loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,287	1,234
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	187	191
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | Exceptionally low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	3	4
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | Very low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	15	11
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | Low probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	158	107
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | Medium probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	867	874
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | High probability of default [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	430	428
Stage Two [member] | Credit Card Loans [member] | Gross carrying amount [member] | Not Rated [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1	1
Stage Two [member] | Business and government loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	15,068	13,524
Stage Two [member] | Business and government loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	329	355
Stage Two [member] | Business and government loans [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,000	2,148
Stage Two [member] | Business and government loans [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	9,987	7,308
Stage Two [member] | Business and government loans [member] | Gross carrying amount [member] | Watch list [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	4,410	4,423
Stage Two [member] | Loan commitments and financial guarantee contracts issued [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	8,756	6,702
Stage Two [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	103	96
Stage Two [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	554	1,722
Stage Two [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Sub investment grade [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	6,659	3,426
Stage Two [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Watch list [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	1,646	1,650
Stage three [member] | Residential mortgages [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	369	356
Stage three [member] | Residential mortgages [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	20	19
Stage three [member] | Residential mortgages [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	389	375
Stage three [member] | Consumer installment and other personal loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	372	378
Stage three [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	134	143
Stage three [member] | Consumer installment and other personal loans [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	506	521
Stage three [member] | Business and government loans [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	908	832
Stage three [member] | Business and government loans [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	216	208
Stage three [member] | Business and government loans [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Credit risk exposure for loans	1,124	1,040
Stage three [member] | Loan commitments and financial guarantee contracts issued [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	304	215
Stage three [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member]
Disclosure of credit risk exposure [line items]
Allowance for credit losses	27	27
Stage three [member] | Loan commitments and financial guarantee contracts issued [member] | Gross carrying amount [member] | Default and impaired [member]
Disclosure of credit risk exposure [line items]
Commitments and financial guarantee contracts	$ 331	$ 242

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Additional Information (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Oct. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Allowances for credit losses	$ 1,887
Carrying value of renegotiated loans	1,174		$ 1,129
Renegotiated loans classified as performing	604		$ 541
Renegotiated loans written off	5	$ 7
Allowance for credit losses related to loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowances for credit losses	1,628
Allowance for credit losses related to other credit instruments [member]
Disclosure of detailed information about financial instruments [line items]
Allowances for credit losses	$ 259

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Summary of Continuity in Loss Allowance by Each Product Type (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Disclosure of credit risk exposure [line items]
Ending balance	$ 1,887
IFRS9 [member]
Disclosure of credit risk exposure [line items]
Ending balance	1,887	$ 1,848
IFRS9 [member] | Allowance for credit losses related to loans [member]
Disclosure of credit risk exposure [line items]
Ending balance	1,628	1,624
IFRS9 [member] | Allowance for credit losses related to other credit instruments [member]
Disclosure of credit risk exposure [line items]
Ending balance	259	224
Residential mortgages [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	102	99
Net remeasurement of loss allowance	6	9
Loan originations	2	5
Derecognitions and maturities	(1)	(3)
Total PCL	7	11
Write-offs	(4)	(7)
Recoveries of previous write-offs	3	2
Foreign exchange and other	(3)	(5)
Ending balance	105	100
Consumer installment and other personal loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	560	570
Net remeasurement of loss allowance	29	20
Loan originations	13	9
Derecognitions and maturities	(14)	(16)
Total PCL	28	13
Write-offs	(84)	(66)
Recoveries of previous write-offs	54	17
Foreign exchange and other	(7)	(9)
Ending balance	551	525
Credit Card Loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	293	337
Net remeasurement of loss allowance	52	61
Loan originations	5	5
Derecognitions and maturities	(8)	(11)
Total PCL	49	55
Write-offs	(76)	(82)
Recoveries of previous write-offs	23	23
Foreign exchange and other	1	(2)
Ending balance	290	331
Business and government loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	915	912
Net remeasurement of loss allowance	39	66
Loan originations	60	33
Derecognitions and maturities	(43)	(37)
Total PCL	56	62
Write-offs	(31)	(50)
Recoveries of previous write-offs	9	8
Foreign exchange and other	(8)	(40)
Ending balance	941	892
Stage One [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Ending balance	521	463
Stage One [member] | IFRS9 [member] | Allowance for credit losses related to loans [member]
Disclosure of credit risk exposure [line items]
Ending balance	392	370
Stage One [member] | IFRS9 [member] | Allowance for credit losses related to other credit instruments [member]
Disclosure of credit risk exposure [line items]
Ending balance	129	93
Stage One [member] | Residential mortgages [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	20	16
Transfer to Stage 1	7	9
Transfer to Stage 2		(1)
Net remeasurement of loss allowance	(8)	(1)
Loan originations	2	5
Derecognitions and maturities		(1)
Total PCL	1	11
Foreign exchange and other		(1)
Ending balance	21	26
Stage One [member] | Consumer installment and other personal loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	90	76
Transfer to Stage 1	45	68
Transfer to Stage 2	(4)	(6)
Transfer to Stage 3	(2)	(1)
Net remeasurement of loss allowance	(47)	(62)
Loan originations	13	9
Derecognitions and maturities	(4)	(5)
Total PCL	1	3
Foreign exchange and other	(1)
Ending balance	90	79
Stage One [member] | Credit Card Loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	74	83
Transfer to Stage 1	26	60
Transfer to Stage 2	(5)	(13)
Net remeasurement of loss allowance	(24)	(56)
Loan originations	5	5
Derecognitions and maturities	(1)	(1)
Total PCL	1	(5)
Foreign exchange and other		(2)
Ending balance	75	76
Stage One [member] | Business and government loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	298	268
Transfer to Stage 1	69	33
Transfer to Stage 2	(17)	(10)
Net remeasurement of loss allowance	(56)	(12)
Loan originations	60	33
Derecognitions and maturities	(23)	(19)
Total PCL	33	25
Foreign exchange and other	4	(11)
Ending balance	335	282
Stage Two [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Ending balance	969	970
Stage Two [member] | IFRS9 [member] | Allowance for credit losses related to loans [member]
Disclosure of credit risk exposure [line items]
Ending balance	866	866
Stage Two [member] | IFRS9 [member] | Allowance for credit losses related to other credit instruments [member]
Disclosure of credit risk exposure [line items]
Ending balance	103	104
Stage Two [member] | Residential mortgages [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	38	34
Transfer to Stage 1	(7)	(9)
Transfer to Stage 2	2	2
Transfer to Stage 3	(2)	(3)
Net remeasurement of loss allowance	9	6
Derecognitions and maturities	(1)	(2)
Total PCL	1	(6)
Foreign exchange and other		(1)
Ending balance	39	27
Stage Two [member] | Consumer installment and other personal loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	326	357
Transfer to Stage 1	(41)	(64)
Transfer to Stage 2	24	32
Transfer to Stage 3	(26)	(52)
Net remeasurement of loss allowance	53	59
Derecognitions and maturities	(10)	(11)
Total PCL		(36)
Foreign exchange and other		(4)
Ending balance	326	317
Stage Two [member] | Credit Card Loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	219	254
Transfer to Stage 1	(26)	(60)
Transfer to Stage 2	5	13
Transfer to Stage 3	(40)	(49)
Net remeasurement of loss allowance	63	107
Derecognitions and maturities	(7)	(10)
Total PCL	(5)	1
Foreign exchange and other	1
Ending balance	215	255
Stage Two [member] | Business and government loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	408	410
Transfer to Stage 1	(68)	(32)
Transfer to Stage 2	23	19
Transfer to Stage 3	(13)	(19)
Net remeasurement of loss allowance	59	24
Derecognitions and maturities	(20)	(18)
Total PCL	(19)	(26)
Foreign exchange and other		(13)
Ending balance	389	371
Stage three [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Ending balance	397	415
Stage three [member] | IFRS9 [member] | Allowance for credit losses related to loans [member]
Disclosure of credit risk exposure [line items]
Ending balance	370	388
Stage three [member] | IFRS9 [member] | Allowance for credit losses related to other credit instruments [member]
Disclosure of credit risk exposure [line items]
Ending balance	27	27
Stage three [member] | Residential mortgages [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	44	49
Transfer to Stage 2	(2)	(1)
Transfer to Stage 3	2	3
Net remeasurement of loss allowance	5	4
Total PCL	5	6
Write-offs	(4)	(7)
Recoveries of previous write-offs	3	2
Foreign exchange and other	(3)	(3)
Ending balance	45	47
Stage three [member] | Consumer installment and other personal loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	144	137
Transfer to Stage 1	(4)	(4)
Transfer to Stage 2	(20)	(26)
Transfer to Stage 3	28	53
Net remeasurement of loss allowance	23	23
Total PCL	27	46
Write-offs	(84)	(66)
Recoveries of previous write-offs	54	17
Foreign exchange and other	(6)	(5)
Ending balance	135	129
Stage three [member] | Credit Card Loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Transfer to Stage 3	40	49
Net remeasurement of loss allowance	13	10
Total PCL	53	59
Write-offs	(76)	(82)
Recoveries of previous write-offs	23	23
Stage three [member] | Business and government loans [member] | IFRS9 [member]
Disclosure of credit risk exposure [line items]
Beginning balance	209	234
Transfer to Stage 1	(1)	(1)
Transfer to Stage 2	(6)	(9)
Transfer to Stage 3	13	19
Net remeasurement of loss allowance	36	54
Total PCL	42	63
Write-offs	(31)	(50)
Recoveries of previous write-offs	9	8
Foreign exchange and other	(12)	(16)
Ending balance	$ 217	$ 239

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Summary of Continuity in Loss Allowance by Each Product Type (Parenthetical) (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Other assets [member]
Disclosure of credit risk exposure [line items]
Provision for credit losses	$ (3)	$ 0

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Schedule of Loans and Allowance for Credit Losses by Geographic Region (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Loans, Gross amount	$ 399,232	$ 385,630	$ 358,286
Allowance for credit losses	1,628	1,639	1,624
Loans, Net amount	397,604	383,991	$ 356,662
Allowance for credit losses related to loans [member]
Disclosure of detailed information about financial instruments [line items]
Loans, Gross amount	399,232	385,630
Loans, Net amount	397,604	383,991
Allowance for credit losses related to loans [member] | Related to impaired loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	370	370
Allowance for credit losses related to loans [member] | Related to performing loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	1,258	1,269
Allowance for credit losses related to loans [member] | Canada [member]
Disclosure of detailed information about financial instruments [line items]
Loans, Gross amount	247,652	244,837
Loans, Net amount	246,775	243,959
Allowance for credit losses related to loans [member] | Canada [member] | Related to impaired loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	182	189
Allowance for credit losses related to loans [member] | Canada [member] | Related to performing loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	695	689
Allowance for credit losses related to loans [member] | United States [member]
Disclosure of detailed information about financial instruments [line items]
Loans, Gross amount	140,768	131,247
Loans, Net amount	140,024	130,492
Allowance for credit losses related to loans [member] | United States [member] | Related to impaired loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	188	181
Allowance for credit losses related to loans [member] | United States [member] | Related to performing loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	556	574
Allowance for credit losses related to loans [member] | Other countries [member]
Disclosure of detailed information about financial instruments [line items]
Loans, Gross amount	10,812	9,546
Loans, Net amount	10,805	9,540
Allowance for credit losses related to loans [member] | Other countries [member] | Related to performing loans [member]
Disclosure of detailed information about financial instruments [line items]
Allowance for credit losses	$ 7	$ 6

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Schedule of Loans and Allowance for Credit Losses by Geographic Region (Parenthetical) (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Other liabilities	$ 33,196	$ 36,985	$ 32,913
Allowance for credit losses on impaired loans, other credit instruments [member] | Related to impaired loans [member]
Disclosure of detailed information about financial instruments [line items]
Other liabilities	27	27
Allowance for credit losses on performing loans, other credit instruments [member] | Related to performing loans [member]
Disclosure of detailed information about financial instruments [line items]
Other liabilities	$ 232	$ 204

Transfer of Assets - Additional

Transfer of Assets - Additional Information (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Sale of mortgage loans	$ 1,596	$ 1,386
United States [member]
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Sale of mortgage loans	109	229
Mortgage servicing rights	$ 4	$ 4

Transfer of Assets - Summary of

Transfer of Assets - Summary of Carrying Amount and Fair Value (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Carrying amount of assets	$ 16,786	$ 17,209
Carrying amount of associated liabilities	16,505	16,925
Residential mortgages [member]
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Carrying amount of assets	5,789	5,569
Other related assets [member]
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Carrying amount of assets	$ 10,997	$ 11,640

Transfer of Assets - Summary _2

Transfer of Assets - Summary of Carrying Amount and Fair Value (Parenthetical) (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018
Disclosure of transferred financial assets that are not derecognised in their entirety [abstract]
Fair value of assets	$ 16,689	$ 17,105
Associated liabilities	$ 16,611	$ 16,763

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) $ in Millions, $ in Millions	Sep. 01, 2018CAD ($)	Jan. 31, 2019CAD ($)	Jan. 31, 2019USD ($)	Sep. 01, 2018USD ($)
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Acquisition of the business		$ 396	$ 303
KGS- Alpha Capital Market [member]
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Acquisition of the business	$ 397	$ 396		$ 304
Acquired intangible assets	49
Acquired goodwill	54
Goodwill expected to be deductible for tax purposes.	$ 32
KGS- Alpha Capital Market [member] | Top of range [member]
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Amortization period	Fourteen years
KGS- Alpha Capital Market [member] | Bottom of range [member]
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Amortization period	Three years

Acquisitions - Summary of Fair

Acquisitions - Summary of Fair Value of Assets Acquired and Liabilities Assumed at The Date of Acquisition (Detail) $ in Millions, $ in Millions	Jan. 31, 2019CAD ($)	Jan. 31, 2019USD ($)	Sep. 01, 2018CAD ($)	Sep. 01, 2018USD ($)
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Purchase price	$ 396	$ 303
KGS- Alpha Capital Market [member]
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Securities - trading	5,193
Securities borrowed or purchased under resale agreements	5,669
Goodwill and intangible assets	103
Other Assets	583
Total assets	11,548
Securities lent or sold under repurchase agreements	9,563
Securities sold but not yet purchased	1,431
Other liabilities	158
Purchase price	$ 396		$ 397	$ 304

Deposits - Summary of Deposits

Deposits - Summary of Deposits (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure Of Deposits [line items]
Interest bearing	$ 33,782	$ 30,192
Non-interest bearing	56,704	56,729
Payables after notice	160,193	157,785
Payable on a fixed date	281,520	276,222
Total	532,199	520,928	$ 475,565
Banks [Member]
Disclosure Of Deposits [line items]
Interest bearing	1,234	1,450
Non-interest bearing	1,301	1,400
Payables after notice	1,192	526
Payable on a fixed date	27,119	24,531
Total	30,846	27,907
Business and governments [member]
Disclosure Of Deposits [line items]
Interest bearing	29,244	25,266
Non-interest bearing	33,704	33,984
Payables after notice	67,174	67,026
Payable on a fixed date	184,307	185,901
Total	314,429	312,177
Individuals [Member]
Disclosure Of Deposits [line items]
Interest bearing	3,304	3,476
Non-interest bearing	21,699	21,345
Payables after notice	91,827	90,233
Payable on a fixed date	70,094	65,790
Total	186,924	180,844
Canada [member]
Disclosure Of Deposits [line items]
Interest bearing	22,660	21,735
Non-interest bearing	47,517	47,231
Payables after notice	85,040	82,091
Payable on a fixed date	163,282	160,069
Total	318,499	311,126
United States [member]
Disclosure Of Deposits [line items]
Interest bearing	10,140	7,395
Non-interest bearing	9,171	9,477
Payables after notice	73,972	74,476
Payable on a fixed date	81,780	86,805
Total	175,063	178,153
Other countries [member]
Disclosure Of Deposits [line items]
Interest bearing	982	1,062
Non-interest bearing	16	21
Payables after notice	1,181	1,218
Payable on a fixed date	36,458	29,348
Total	$ 38,637	$ 31,649

Deposits - Summary of Deposit_2

Deposits - Summary of Deposits (Parenthetical) (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018
Disclosure Of Deposits [line items]
Total deposits payable on a fixed date	$ 32,894	$ 29,673
Deposits booked payable on a fixed date	281,520	276,222
More Than One Hundred Thousand [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	250,565	246,685
Canada [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	163,282	160,069
Canada [member] | More Than One Hundred Thousand [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	148,762	145,574
Canada [member] | More Than One Hundred Thousand [member] | 0 to 3 months [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	53,539	55,190
Canada [member] | More Than One Hundred Thousand [member] | 3-6 month [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	9,720	3,836
Canada [member] | More Than One Hundred Thousand [member] | Later than six months and not later than one year [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	13,950	12,909
Canada [member] | More Than One Hundred Thousand [member] | After 12 months [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	71,553	73,639
United States [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	81,780	86,805
United States [member] | More Than One Hundred Thousand [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	65,353	71,770
Other countries [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	36,458	29,348
Other countries [member] | More Than One Hundred Thousand [member]
Disclosure Of Deposits [line items]
Deposits booked payable on a fixed date	36,450	29,341
U.S. dollars [member]
Disclosure Of Deposits [line items]
Deposits liabilities	257,118	259,747
Non USD Non CAD [member]
Disclosure Of Deposits [line items]
Deposits liabilities	$ 42,374	$ 37,427

Deposits and Subordinated Deb_2

Deposits and Subordinated Debt - Subordinated Debt - Additional Information (Detail)	Jan. 31, 2019CAD ($)
Subordinated Debt [member]
Subordinated Liabilities [line items]
Face value	$ 0

Equity - Summary of Classes of

Equity - Summary of Classes of Preferred and Common Shares Outstanding (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018	Oct. 31, 2017
Disclosure of classes of share capital [line items]
Balance at End of Period	$ 47,349	$ 45,721	$ 42,819
Class B Series 25 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	9,425,607	9,425,607
Balance at End of Period	$ 236	$ 236
Convertible to	Class B - Series 26
Class B Series 26 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	2,174,393	2,174,393
Balance at End of Period	$ 54	$ 54
Convertible to	Class B - Series 25
Class B Series 27 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	20,000,000	20,000,000
Balance at End of Period	$ 500	$ 500
Convertible to	Class B - Series 28
Class B Series 29 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	16,000,000	16,000,000
Balance at End of Period	$ 400	$ 400
Convertible to	Class B - Series 30
Class B Series 31 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	12,000,000	12,000,000
Balance at End of Period	$ 300	$ 300
Convertible to	Class B - Series 32
Class B Series 33 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	8,000,000	8,000,000
Balance at End of Period	$ 200	$ 200
Convertible to	Class B - Series 34
Class B Series 35 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	6,000,000	6,000,000
Balance at End of Period	$ 150	$ 150
Convertible to	Not convertible
Class B Series 36 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	600,000	600,000
Balance at End of Period	$ 600	$ 600
Convertible to	Class B - Series 37
Class B Series 38 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	24,000,000	24,000,000
Balance at End of Period	$ 600	$ 600
Convertible to	Class B - Series 39
Class B Series 40 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	20,000,000	20,000,000
Balance at End of Period	$ 500	$ 500
Convertible to	Class B - Series 41
Class B Series 42 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	16,000,000	16,000,000
Balance at End of Period	$ 400	$ 400
Convertible to	Class B - Series 43
Class B Series 44 [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	16,000,000	16,000,000
Balance at End of Period	$ 400	$ 400
Convertible to	Class B - Series 45
Preferred shares [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	$ 4,340	$ 4,340	4,240	$ 4,240
Common shares [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	638,403,636	639,329,625
Balance at End of Period	$ 12,914	$ 12,929	$ 13,020	$ 13,032
Ordinary and preference shares [member]
Disclosure of classes of share capital [line items]
Balance at End of Period	$ 17,254	$ 17,269

Equity - Summary of Classes o_2

Equity - Summary of Classes of Preferred and Common Shares Outstanding (Parenthetical) (Detail) - $ / shares	3 Months Ended	12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018
Bottom of range [member]
Disclosure of classes of share capital [line items]
Common stock conversion price	$ 5
Common shares [member]
Disclosure of classes of share capital [line items]
Stock options issued, convertible shares	6,950,400	6,095,201
Number of shares issued	74,011
Common shares [member] | Dividend reinvestment and share purchase plan [member]
Disclosure of classes of share capital [line items]
Number of shares issued	0
Common shares [member] | Share purchase plan [member]
Disclosure of classes of share capital [line items]
Number of shares issued	0

Equity - Additional Information

Equity - Additional Information (Detail) - CAD ($)	Feb. 26, 2019	Dec. 31, 2018	Jan. 31, 2019
BMO Capital Trust II [member] | Tier 1 Notes- Series A [member]
Disclosure of classes of share capital [line items]
Issued and outstanding redemption amount		$ 1,000
Redemption of capital trust securities		$ 450,000,000
Normal course issuer bid [member]
Disclosure of classes of share capital [line items]
Shares repurchased for cancellation			1,000,000
Normal course issuer bid [member] | Potential ordinary share transactions [member] | Top of range [member]
Disclosure of classes of share capital [line items]
Purchase of common shares for cancellation	15,000,000

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Summary of Financial Instruments Designated At Fair Value Through Profit Or Loss (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Securities
Amortized cost	$ 7,272	$ 6,485	$ 8,455
Loans
Consumer instalment and other personal	63,241	63,225	61,118
Credit cards	8,187	8,329	7,994
Business and government	207,765	194,456	171,988
Loans gross of allowance for loan losses	399,232	385,630	358,286
Deposits	532,199	520,928	475,565
Securitization and structured entities' liabilities	23,969	25,051	23,503
Subordinated debt	6,820	6,782	$ 6,463
Not Carried At Fair Value [member] | At carrying value [member]
Securities
Amortized cost	7,272	6,485
Loans
Residential mortgages	119,960	119,544
Consumer instalment and other personal	62,712	62,687
Credit cards	7,959	8,099
Business and government	204,560	192,225
Loans gross of allowance for loan losses	395,191	382,555
Deposits	517,063	506,742
Securitization and structured entities' liabilities	23,969	25,051
Subordinated debt	6,820	6,782
Not Carried At Fair Value [member] | Fair Value [Member]
Securities
Amortized cost	7,197	6,288
Loans
Residential mortgages	119,293	118,609
Consumer instalment and other personal	62,675	62,618
Credit cards	7,959	8,099
Business and government	204,717	191,989
Loans gross of allowance for loan losses	394,644	381,315
Deposits	517,165	506,581
Securitization and structured entities' liabilities	24,016	24,838
Subordinated debt	$ 6,953	$ 6,834

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Summary of Financial Instruments Designated At Fair Value Through Profit Or Loss (Parenthetical) (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Fairvalue of financial instruments on balance sheet [line items]
Business and government	$ 207,765	$ 194,456	$ 171,988
Deposits	532,199	520,928	$ 475,565
Financial assets at fair value through profit or loss [member]
Fairvalue of financial instruments on balance sheet [line items]
Deposits	15,136	14,186
Financial assets at fair value through profit or loss [member] | Not Carried At Fair Value [member]
Fairvalue of financial instruments on balance sheet [line items]
Business and government	$ 2,429	$ 1,450

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Additional Information (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure Of Fair Value Of Financial Instruments [line items]
Decrease in non-interest revenue and trading revenue	$ (400)		$ (269)
Increase (decrease) other comprehensive income before tax	107		(91)
Fair value of notes on contractual maturity	15,136	$ 14,186
Notional amount of notes on contractual maturity	15,205	14,548
Unrealized gain (loss) due to change in credit spread	(224)
Unrealized gain (loss) in other comprehensive income due to change in credit spread	(148)
Unrealized gain (loss) in statement of income due to change in credit spread	(76)
Fair value of investment	12,280	11,611	11,261
Fair value of investment through profit loss decrease in non-interest revenue, insurance revenue	1,049	485	507
Fair value of investment in contract liabilities	889	800
Change in fair value of investment contract liabilities	37		(14)
Gain (loss) recorded in other comprehensive income due to changes in credit spread	1		(9)
Related to securities held by insurance subsidiaries [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Fair value of investment	9,603	$ 8,783
Unrealized gain loss through profit or loss from securities held by insurance subsidiary [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Fair value of investment through profit loss decrease in non-interest revenue, insurance revenue	256		$ (10)
Trading securities [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Transfers out of Level 1 into Level 2 of fair value hierarchy	1,704
Transfers out of Level 2 into Level 1 of fair value hierarchy	659
Trading securities [member] | Valued using models (with observable inputs) [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Transfers out of Level 2 into Level 3 of fair value hierarchy	19
Transfers out of Level 3 into Level 2 of fair value hierarchy	17
Financial assets at fair value through other comprehensive income, category [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Transfers out of Level 1 into Level 2 of fair value hierarchy	607
Transfers out of Level 2 into Level 1 of fair value hierarchy	1,111
Financial assets at fair value through profit or loss [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Transfers out of Level 1 into Level 2 of fair value hierarchy	323
Transfers out of Level 2 into Level 1 of fair value hierarchy	$ 104

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Summary of Fair Value Measurement of Assets And Liabilities (Detail) - CAD ($) $ in Millions	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	$ 101,486	$ 99,697	$ 93,428
FVTPL Securities	12,280	11,611	11,261
FVOCI securities	66,696	62,440	49,755
Business and Government Loans	207,765	194,456	171,988
Investment contract liabilities	889	800
Derivative Assets
Derivative Assets	21,633	26,204	31,756
Derivative Liabilities
Derivative Liabilities	23,188	24,411	$ 31,079
Measured at fair value [Member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	101,486	99,697
FVTPL Securities	12,280	11,611
FVOCI securities	66,696	62,440
Business and Government Loans	2,429	1,450
Securities sold but not yet purchased	30,407	28,804
Structured note liabilities and other note liabilities	15,136	14,186
Investment contract liabilities	889	800
Fair value liabilities	46,432	43,790
Derivative Assets
Derivative Assets	21,633	26,204
Derivative Liabilities
Derivative Liabilities	23,188	24,411
Measured at fair value [Member] | Canadian federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	11,766	10,320
FVTPL Securities	648	431
FVOCI securities	13,082	12,805
Measured at fair value [Member] | Canadian government provincial [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	8,886	8,702
FVTPL Securities	1,027	946
FVOCI securities	7,353	6,862
Measured at fair value [Member] | U.S. federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	19,638	9,517
FVTPL Securities	70	69
FVOCI securities	17,337	16,823
Measured at fair value [Member] | US States, municipalities and agencies [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	575	1,216
FVOCI securities	3,947	3,655
Measured at fair value [Member] | Other governments [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	1,819	1,411
FVTPL Securities	30
FVOCI securities	5,531	4,790
Measured at fair value [Member] | NHA MBS US agency MBS and CMO [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	10,697	9,184
FVTPL Securities	6	7
FVOCI securities	13,934	13,687
Measured at fair value [Member] | Corporate debt [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	8,003	9,198
FVTPL Securities	7,212	6,821
FVOCI securities	5,448	3,756
Measured at fair value [Member] | Loans held for trading [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	393	199
Measured at fair value [Member] | Corporate equity [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	39,709	49,950
FVTPL Securities	3,287	3,337
FVOCI securities	64	62
Measured at fair value [Member] | Interest rate contracts [member]
Derivative Assets
Derivative Assets	8,402	8,977
Derivative Liabilities
Derivative Liabilities	6,754	8,634
Measured at fair value [Member] | Foreign exchange contracts [member]
Derivative Assets
Derivative Assets	11,073	12,999
Derivative Liabilities
Derivative Liabilities	11,768	11,854
Measured at fair value [Member] | Commodity contracts [member]
Derivative Assets
Derivative Assets	1,225	2,060
Derivative Liabilities
Derivative Liabilities	1,648	1,456
Measured at fair value [Member] | Equity contracts [member]
Derivative Assets
Derivative Assets	897	2,158
Derivative Liabilities
Derivative Liabilities	2,933	2,430
Measured at fair value [Member] | Credit default swaps [member]
Derivative Assets
Derivative Assets	36	10
Derivative Liabilities
Derivative Liabilities	85	37
Valued using quoted market prices [member] | Measured at fair value [Member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	75,581	76,852
FVTPL Securities	2,243	2,172
FVOCI securities	41,061	37,232
Securities sold but not yet purchased	26,579	26,336
Fair value liabilities	26,579	26,336
Derivative Assets
Derivative Assets	305	486
Derivative Liabilities
Derivative Liabilities	297	557
Valued using quoted market prices [member] | Measured at fair value [Member] | Canadian federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	10,494	9,107
FVTPL Securities	558	328
FVOCI securities	12,246	11,978
Valued using quoted market prices [member] | Measured at fair value [Member] | Canadian government provincial [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	2,077	4,013
FVTPL Securities	34	219
FVOCI securities	4,940	3,315
Valued using quoted market prices [member] | Measured at fair value [Member] | U.S. federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	19,580	9,465
FVTPL Securities	70	69
FVOCI securities	17,337	16,823
Valued using quoted market prices [member] | Measured at fair value [Member] | US States, municipalities and agencies [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	2	78
FVOCI securities	27	14
Valued using quoted market prices [member] | Measured at fair value [Member] | Other governments [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	1,119	1,210
FVOCI securities	3,731	3,143
Valued using quoted market prices [member] | Measured at fair value [Member] | NHA MBS US agency MBS and CMO [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	40	60
Valued using quoted market prices [member] | Measured at fair value [Member] | Corporate debt [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	2,562	2,973
FVTPL Securities	146	178
FVOCI securities	2,780	1,959
Valued using quoted market prices [member] | Measured at fair value [Member] | Corporate equity [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	39,707	49,946
FVTPL Securities	1,435	1,378
Valued using quoted market prices [member] | Measured at fair value [Member] | Interest rate contracts [member]
Derivative Assets
Derivative Assets	13	18
Derivative Liabilities
Derivative Liabilities	28	14
Valued using quoted market prices [member] | Measured at fair value [Member] | Foreign exchange contracts [member]
Derivative Assets
Derivative Assets	11	16
Derivative Liabilities
Derivative Liabilities	1	2
Valued using quoted market prices [member] | Measured at fair value [Member] | Commodity contracts [member]
Derivative Assets
Derivative Assets	165	166
Derivative Liabilities
Derivative Liabilities	132	295
Valued using quoted market prices [member] | Measured at fair value [Member] | Equity contracts [member]
Derivative Assets
Derivative Assets	116	286
Derivative Liabilities
Derivative Liabilities	136	246
Valued using models (with observable inputs) [member] | Measured at fair value [Member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	25,668	22,583
FVTPL Securities	8,251	7,614
FVOCI securities	25,570	25,145
Securities sold but not yet purchased	3,821	2,468
Structured note liabilities and other note liabilities	15,136	14,186
Investment contract liabilities	889	800
Fair value liabilities	19,846	17,454
Derivative Assets
Derivative Assets	21,328	25,718
Derivative Liabilities
Derivative Liabilities	22,890	23,852
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Canadian federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	1,272	1,213
FVTPL Securities	90	103
FVOCI securities	836	827
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Canadian government provincial [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	6,809	4,689
FVTPL Securities	993	727
FVOCI securities	2,413	3,547
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | U.S. federal government [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	58	52
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | US States, municipalities and agencies [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	573	1,138
FVOCI securities	3,919	3,640
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Other governments [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	700	201
FVTPL Securities	30
FVOCI securities	1,800	1,647
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | NHA MBS US agency MBS and CMO [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	10,426	8,869
FVTPL Securities	6	7
FVOCI securities	13,934	13,687
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Corporate debt [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	5,435	6,218
FVTPL Securities	7,066	6,643
FVOCI securities	2,668	1,797
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Loans held for trading [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	393	199
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Corporate equity [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	2	4
FVTPL Securities	66	134
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Interest rate contracts [member]
Derivative Assets
Derivative Assets	8,389	8,959
Derivative Liabilities
Derivative Liabilities	6,726	8,620
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Foreign exchange contracts [member]
Derivative Assets
Derivative Assets	11,062	12,983
Derivative Liabilities
Derivative Liabilities	11,767	11,852
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Commodity contracts [member]
Derivative Assets
Derivative Assets	1,060	1,894
Derivative Liabilities
Derivative Liabilities	1,516	1,161
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Equity contracts [member]
Derivative Assets
Derivative Assets	781	1,872
Derivative Liabilities
Derivative Liabilities	2,797	2,183
Valued using models (with observable inputs) [member] | Measured at fair value [Member] | Credit default swaps [member]
Derivative Assets
Derivative Assets	36	10
Derivative Liabilities
Derivative Liabilities	84	36
Valued using models (without observable inputs) [member] | Measured at fair value [Member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	237	262
FVTPL Securities	1,786	1,825
FVOCI securities	65	63
Business and Government Loans	2,429	1,450
Securities sold but not yet purchased	7
Fair value liabilities	7
Derivative Liabilities
Derivative Liabilities	1	2
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | US States, municipalities and agencies [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
FVOCI securities	1	1
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | NHA MBS US agency MBS and CMO [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	231	255
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | Corporate debt [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
Trading Securities	6	7
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | Corporate equity [member]
Disclosure Of Fair Value Of Financial Instruments [line items]
FVTPL Securities	1,786	1,825
FVOCI securities	64	62
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | Equity contracts [member]
Derivative Liabilities
Derivative Liabilities		1
Valued using models (without observable inputs) [member] | Measured at fair value [Member] | Credit default swaps [member]
Derivative Liabilities
Derivative Liabilities	$ 1	$ 1

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Summary of Changes in Level 3 Instruments Carried At Fair Value (Detail) - Valued using models (without observable inputs) [member] $ in Millions	3 Months Ended
	Jan. 31, 2019CAD ($)
Trading securities [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	$ 262
Change in fair value included in earnings	(5)
Change in fair value included in other comprehensive income	(1)
Issuances/Purchases	96
Sales	(117)
Transfers into Level 3	19
Transfers out of Level 3	(17)
Assets at end of period	237
Change in unrealized gains (losses) recorded in income for instruments still held	(1)
Trading securities [member] | NHA MBS US agency MBS and CMO [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	255
Change in fair value included in earnings	(5)
Change in fair value included in other comprehensive income	(1)
Issuances/Purchases	96
Sales	(116)
Transfers into Level 3	19
Transfers out of Level 3	(17)
Assets at end of period	231
Change in unrealized gains (losses) recorded in income for instruments still held	(1)
Trading securities [member] | Corporate debt [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	7
Sales	(1)
Assets at end of period	6
Financial assets at fair value through profit or loss [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	1,825
Change in fair value included in earnings	14
Change in fair value included in other comprehensive income	(4)
Issuances/Purchases	123
Sales	(172)
Assets at end of period	1,786
Change in unrealized gains (losses) recorded in income for instruments still held	16
Financial assets at fair value through profit or loss [member] | Corporate equity [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	1,825
Change in fair value included in earnings	14
Change in fair value included in other comprehensive income	(4)
Issuances/Purchases	123
Sales	(172)
Assets at end of period	1,786
Change in unrealized gains (losses) recorded in income for instruments still held	16
Financial assets at fair value through other comprehensive income, category [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	63
Issuances/Purchases	2
Assets at end of period	65
Financial assets at fair value through other comprehensive income, category [member] | Corporate equity [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	62
Issuances/Purchases	2
Assets at end of period	64
Financial assets at fair value through other comprehensive income, category [member] | US States, municipalities and agencies [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	1
Assets at end of period	1
Business and government loans [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Assets at beginning of period	1,450
Change in fair value included in earnings	7
Change in fair value included in other comprehensive income	(4)
Issuances/Purchases	1,117
Maturities/Settlement	(141)
Assets at end of period	2,429
Derivatives Liabilities [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Liabilities at beginning of period	2
Change in fair value included in earnings	0
Change in fair value included in other comprehensive income	0
Purchases	0
Maturities/Settlement	0
Transfers into Level 3	0
Transfers out of Level 3	(1)
Liabilities at end of period	1
Change in unrealized gains (losses) recorded in income for instruments still held	0
Derivatives Liabilities [member] | Credit default swaps [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Liabilities at beginning of period	1
Change in fair value included in earnings	0
Change in fair value included in other comprehensive income	0
Purchases	0
Maturities/Settlement	0
Transfers into Level 3	0
Liabilities at end of period	1
Change in unrealized gains (losses) recorded in income for instruments still held	0
Derivatives Liabilities [member] | Equity contracts [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Liabilities at beginning of period	1
Change in fair value included in earnings	0
Change in fair value included in other comprehensive income	0
Purchases	0
Maturities/Settlement	0
Transfers into Level 3	0
Transfers out of Level 3	(1)
Change in unrealized gains (losses) recorded in income for instruments still held	0
Financial value liabilities [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Change in fair value included in earnings	0
Change in fair value included in other comprehensive income	0
Purchases	0
Sales	7
Maturities/Settlement	0
Transfers into Level 3	0
Liabilities at end of period	7
Change in unrealized gains (losses) recorded in income for instruments still held	0
Financial value liabilities [member] | Securities sold but not yet purchased [member]
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]
Change in fair value included in earnings	0
Change in fair value included in other comprehensive income	0
Purchases	0
Sales	7
Maturities/Settlement	0
Transfers into Level 3	0
Liabilities at end of period	7
Change in unrealized gains (losses) recorded in income for instruments still held	$ 0

Capital Management - Additional

Capital Management - Additional Information (Detail)	1 Months Ended	3 Months Ended
	Dec. 31, 2018	Jan. 31, 2019
Disclosure of capital management [abstract]
Capital conservation buffer, percentage		2.50%
Common equity surcharge, percentage		1.00%
Domestic stability buffer, percentage	1.75%	1.50%

Employee Compensation - Additio

Employee Compensation - Additional Information (Detail)	3 Months Ended
	Jan. 31, 2019CAD ($)	Jan. 31, 2018CAD ($)
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Number of stock options, Granted	931,047	705,398
Weighted-average fair value of options granted	$ 10.23	$ 11.30

Employee Compensation - Summary

Employee Compensation - Summary of Ranges of Values used for each Option Pricing Assumption (Detail)	3 Months Ended
	Jan. 31, 2019CAD ($)yr	Jan. 31, 2018CAD ($)yr
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected dividend yield	5.70%	4.10%
Risk-free rate of return	2.50%	2.10%
Exercise price | $	$ 89.90	$ 100.63
Bottom of range [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected share price volatility	20.00%	17.00%
Expected period until exercise (in years)	6.5	6.5
Top of range [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected share price volatility	20.10%	17.30%
Expected period until exercise (in years)	7	7

Employee Compensation - Summa_2

Employee Compensation - Summary of Pension and Other Employee Future Benefit Expenses (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of defined benefit plans [line items]
Total pension and other employee future benefit expenses recognized in the Consolidated Statement of Income	$ 2,072	$ 1,613	$ 1,963
Pension plans [member]
Disclosure of defined benefit plans [line items]
Current service cost	48		52
Net interest (income) expense on net defined benefit (asset) liability	(5)		(2)
Past service income	(5)
Administrative expenses	1		1
Benefits expense	39		51
Defined contribution expense	54		59
Total pension and other employee future benefit expenses recognized in the Consolidated Statement of Income	114		130
Pension plans [member] | Canada and Quebec [member]
Disclosure of defined benefit plans [line items]
Defined contribution expense	21		20
Other employee future benefit plans [member]
Disclosure of defined benefit plans [line items]
Current service cost	2		7
Net interest (income) expense on net defined benefit (asset) liability	10		12
Benefits expense	12		19
Total pension and other employee future benefit expenses recognized in the Consolidated Statement of Income	$ 12		$ 19

Earnings Per Share - Summary of

Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Detail) - CAD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Basic Earnings Per Share
Net income attributable to bank shareholders	$ 1,510	$ 1,697	$ 973
Dividends on preferred shares	(52)		(45)
Net income available to common shareholders	$ 1,458		$ 928
Weighted-average number of common shares outstanding	638,927		647,670
Basic earnings per share	$ 2.28	$ 2.58	$ 1.43
Diluted Earnings Per Share
Net income available to common shareholders adjusted for impact of dilutive instruments	$ 1,458		$ 928
Weighted-average number of common shares outstanding	638,927		647,670
Effect of dilutive instruments
Stock options potentially exercisable	4,704		5,918
Common shares potentially repurchased	(3,218)		(3,733)
Weighted-average number of diluted common shares outstanding	640,413		649,855
Diluted earnings per share	$ 2.28	$ 2.58	$ 1.43

Earnings Per Share - Summary _2

Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) - CAD ($)	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Earnings per share [line items]
Outstanding options excluded from calculation of diluted earnings per share	1,970,886	1,488,521
Dilutive potential shares from stock options [member]
Earnings per share [line items]
Exercise price of outstanding share options	$ 100.69	$ 121.81

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - CAD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
2012 taxation years [member]
Disclosure of Income Tax [Line items]
Additional income tax expense and interest		$ 116
2011 taxation years [member]
Disclosure of Income Tax [Line items]
Additional income tax expense and interest			$ 76
2013 taxation years [member]
Disclosure of Income Tax [Line items]
Additional income tax expense and interest	$ 169

Operating Segmentation - Additi

Operating Segmentation - Additional Information (Detail)	3 Months Ended
	Jan. 31, 2019Business
Disclosure of operating segments [abstract]
Number of operating groups	3

Operating Segmentation - Schedu

Operating Segmentation - Schedule of Operating Segments (Detail) - CAD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018
Disclosure of operating segments [line items]
Net interest income	$ 3,172		$ 2,875
Non-interest revenue	3,345		2,763
Total Revenue	6,517	$ 5,893	5,638
Provision for (recovery of) credit losses	137	175	141
Insurance Claims, Commissions and Changes in Policy Benefit Liabilities	926	390	361
Amortization	291		279
Non-interest expense	3,266		3,121
Income (loss) before taxes	1,897	2,135	1,736
Provision for (recovery of) income taxes	387	438	763
Net Income	1,510	$ 1,697	973
Average Assets	820,206		727,463
Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	127		174
Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	10		(33)
Canadian P&C [member]
Disclosure of operating segments [line items]
Net interest income	1,433		1,380
Non-interest revenue	521		523
Total Revenue	1,954		1,903
Provision for (recovery of) credit losses	120		101
Amortization	79		81
Non-interest expense	882		857
Income (loss) before taxes	873		864
Provision for (recovery of) income taxes	226		218
Net Income	647		646
Average Assets	231,556		221,647
Canadian P&C [member] | Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	114		97
Canadian P&C [member] | Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	6		4
US P&C [member]
Disclosure of operating segments [line items]
Net interest income	1,059		903
Non-interest revenue	279		268
Total Revenue	1,338		1,171
Provision for (recovery of) credit losses	6		47
Amortization	112		112
Non-interest expense	656		597
Income (loss) before taxes	564		415
Provision for (recovery of) income taxes	120		105
Net Income	444		310
Average Assets	120,043		104,215
US P&C [member] | Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	15		77
US P&C [member] | Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	(9)		(30)
Wealth management [member]
Disclosure of operating segments [line items]
Net interest income	232		200
Non-interest revenue	1,908		1,406
Total Revenue	2,140		1,606
Provision for (recovery of) credit losses	2		(1)
Insurance Claims, Commissions and Changes in Policy Benefit Liabilities	926		361
Amortization	67		57
Non-interest expense	828		838
Income (loss) before taxes	317		351
Provision for (recovery of) income taxes	78		85
Net Income	239		266
Average Assets	38,744		34,281
Wealth management [member] | Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	2		1
Wealth management [member] | Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses			(2)
BMO capital markets [member]
Disclosure of operating segments [line items]
Net interest income	561		562
Non-interest revenue	571		522
Total Revenue	1,132		1,084
Provision for (recovery of) credit losses	15		(5)
Amortization	33		29
Non-interest expense	759		693
Income (loss) before taxes	325		367
Provision for (recovery of) income taxes	70		96
Net Income	255		271
Average Assets	340,273		295,412
BMO capital markets [member] | Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	1		(1)
BMO capital markets [member] | Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	14		(4)
Corporate services [member]
Disclosure of operating segments [line items]
Net interest income	(113)		(170)
Non-interest revenue	66		44
Total Revenue	(47)		(126)
Provision for (recovery of) credit losses	(6)		(1)
Non-interest expense	141		136
Income (loss) before taxes	(182)		(261)
Provision for (recovery of) income taxes	(107)		259
Net Income	(75)		(520)
Average Assets	89,590		71,908
Corporate services [member] | Impaired Loans [Member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	(5)
Corporate services [member] | Performing loans [member]
Disclosure of operating segments [line items]
Provision for (recovery of) credit losses	$ (1)		$ (1)