Provision for (recovery of) credit losses on performing loans Performing loans [Member] Performing loans. Other changes in the net carrying amount of the insurance contract Increase (decrease) through additional items necessary to understand change, insurance contracts liability (asset) Summary of Yield Curve Used to Discount Cash Flows that do not Vary Based on Underlying Items Disclosure of yield curve used to discount cash flows that do not vary based on returns on underlying items [text block] Summary of Deposits Payable On a Fixed Date Disclosure Of Deposits Payable On A Fixed Date [Table Text Block] Disclosure of deposits payable on a fixed date. Net change in unrealized gains (losses) on fair value through OCI debt securities Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Fair value of assets Assets at beginning of period Assets at end of period Financial assets, at fair value TLAC Ratio Total Loss Absorbing Capacity capital Ratio Total loss absorbing capacity capital ratio. Deposits More Than One Hundred Thousand Dollar Deposits More Than One Hundred Thousand Dollar [Member] Deposits More Than One Hundred Thousand Dollar [Member] Statement of Balance Sheet [Table] Statement Of Balance Sheet [Table] Statement Of Balance Sheet Interest Expense Interest expense for liabilities Interest expense Total assets Identifiable Assets Acquired Recognised As Of Acquisition Date Identifiable Assets Acquired Recognised As Of Acquisition Date First 12 months First 12 Months [Member] First 12 Months. Purchases of securities, other than trading Purchase of securities other than trading classified as investing activities Payments for purchase of securities other than trading, classified as investing activities. Summary of Unrealized Gains and Losses on Securities at Fair Value through other Comprehensive Income Disclosure of Unrealized Gains and Losses Securities F V O C I Explanatory [Table Text Block] The disclosure of unrealized gains and losses on securities at fair value through other comprehensive income. Corporate Services Corporate services [member] Corporate services. Expected credit loss period Expected credit loss period Expected credit loss period. Disclosure of detailed information about business combination [line items] Disclosure of detailed information about business combination [line items] Dividends on common shares Dividends paid, ordinary shares Outstanding options excluded from calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share Amount1 Antidilutive securities excluded from computation of earnings per share amount1. Liabilities for incurred claims Liabilities for incurred claims [member] Levels of fair value hierarchy [domain] Levels of fair value hierarchy [domain] Loans: Residential mortgages Residential mortgages Residential Mortgages [Member] Residential Mortgages [Member] Cost or amortized cost Financial assets at amortised cost, class [member] Amortisation of intangible assets Useful life measured as period of time, intangible assets other than goodwill Total Capital Ratio Capital ratio Total capital dividend by Total capital risk-weighted assets. Trading securities Adjustments For Increase Decrease In Trading Securities Adjustments for increase decrease in trading securities. Supplemental Disclosure of Cash Flow Information Supplemental Cash Flow Disclosure [abstract] Supplemental Cash Flow Disclosure [abstract] Classes of share capital [axis] Classes of share capital [axis] Structured note liabilities Structured Note Liabilities Structured note liabilities. Base Base Scenarios [Member] Base Scenario. Common shares repurchased for cancellation (Note 6) Payments To Repurchase Of Common Shares For Cancellation Payments To Repurchase Of Common Shares For Cancellation. Dividends on preferred shares and distributions on other equity instruments Dividends paid, other shares 3 years Later than two years and not later than three years [member] Fair Value of Financial Instruments Not Carried at Fair Value on the Balance Sheet Disclosure of Fair Values of Financial Instruments Not Carried at Fair Value on Balance Sheet Explanatory [Table Text Block] Fair Values of Financial Instruments Not Carried at Fair Value on the Balance Sheet. Increase in contingent liabilities recognised in business combination Increase (decrease) in contingent liabilities recognised in business combination Disclosure of sharebased payment [table] Disclosure of sharebased payment [table] Disclosure of sharebased payment [table] Deferred tax liabilities Deferred tax liabilities recognised as of acquisition date Total Equity Balance at beginning of period Balance at end of period Amount Equity Net (losses) on translation of net foreign operations Other Comprehensive Income Net Of Taxes Translation Of Net Foreign Operations The amount of other comprehensive income, net of tax, related to exchange differences when financial statements of foreign operations are translated. [Refer: Other comprehensive income] 6 to 12 months Later than six months and not later than one year [member] Corporate BBB 10-year spread Corporate BBB ten year spread Corporate BBB ten year spread. U.S. federal government United States Federal Government Securities [member] United States Federal Government Securities [member] Premises and equipment Property, plant and equipment Net unrealized gains (losses) on fair value through OCI equity securities arising during the period Other comprehensive income, net of tax, gains (losses) from investments in equity instruments Sales Sales, fair value measurement, assets Tier 1 Capital Ratio Tier one capital ratio Tier 1 capital dividend by Tier 1 capital risk-weighted assets. Foreign exchange contracts Foreign Exchange Contracts [member] Foreign exchange contracts. Accumulated Other Comprehensive Income on Translation of Net Foreign Operations, net of taxes Accumulated Other Comprehensive Income on Translation of Net Foreign Operations, net of taxes [Member] Accumulated Other Comprehensive Income on Translation of Net Foreign Operations, net of taxes [Member] Individuals Personal Deposit [Member] Personal Deposit [Member] 6.875% Limited Recourse Capital Notes, Series 6 (LRCNs, Series 6) Six Point Eight Seven Five Percentage Limited Recourse Capital Notes Series Six [Member] Six Point Eight Seven Five Percentage Limited Recourse Capital Notes Series Six Upside Upside Scenarios [Member] Upside scenarios. Other countries Other Other Countries [member] Other countries. Total net loans and acceptances Net Total Loans And Acceptances [Member] Net total loans and acceptances. Securities (gains), other than trading (Note 2) Adjustments For Net Gain Loss On Securities Other Than Trading Adjustments for net gain loss on securities other than trading. Statement of comprehensive income [abstract] Summary of Maturity Schedule for Deposits Greater than One Hundred Thousand Dollars Booked In Canada Disclosure Of Maturity Schedule For Deposits Greater Than One Hundred Thousand Dollars Booked In Canada [Table Text Block] Disclosure of maturity schedule for deposits greater than one hundred thousand dollars booked in Canada. Attributable to: Comprehensive income attributable to [abstract] Other Other assets Stage 3 Stage three [Member] Stage three. Items that will not be subsequently reclassified to net income Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Level 1 Level 1 of fair value hierarchy [member] Allowance for credit losses of amortized cost Allowance For Credit Losses Of Amortized cost Allowance for credit losses of amortized cost. Number of shares issued in an acquisition (in shares) Number Of Shares Issued Through Acquisition Of Subsidiary, Equity Number Of Shares Issued Through Acquisition Of Subsidiary, Equity Number of share options granted in share-based payment arrangement Number of share options granted in share-based payment arrangement Allowance for credit losses of FVOCI securities Allowance For Credit Losses Of FVOCI Securities Allowance for credit losses of FVOCI securities. Unrealized gains (losses) on fair value through OCI equity securities arising during the period Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, entity's own equity instruments Investment grade Investment grade [Member] Investment grade. Securities gains, other than trading Securities gains, other than trading Securities gains, other than trading. Level 2 Level 2 of fair value hierarchy [member] Preferred shares redeemed Preferred Shares Redeemed Preferred Shares Redeemed Cash dividends and distributions paid Dividends paid, classified as financing activities 50 basis point decrease Decrease In Profit Or Loss From Fifty Basis Point Decrease In Interest Rates Decrease In Profit Or Loss From Fifty Basis Point Decrease In Interest Rates Related to performing loans, assuming 100% severe downside scenario Related to performing loans, assuming hundred percent severe downside scenario [Member] Related to performing loans, assuming hundred percent adverse scenario. FVTPL Securities Financial assets at fair value through profit or loss, category [member] Bank shareholders Net income attributable to bank shareholders Net income (loss) attributable to bank shareholders Profit (loss), attributable to owners of parent Statement of financial position [abstract] Provision for credit losses (Note 3) Adjustments for provisions Other liabilities Interest expense on other financial liabilities Cover [Abstract] Redemption of preferred shares (Note 6) Payments to acquire or redeem entity's shares Financial assets or liabilities, measured at fair value Measured at fair value Financial assets or liabilities, measured at fair value [Member] Measured at fair value. Deposits Interest Expense on Deposits Interest Expense on Deposits Defined benefit plans [axis] Defined benefit plans [axis] Dividends to non-controlling interest in subsidiaries Dividends paid to non-controlling interests Underwriting and advisory fees Underwriting And Advisory Fees Income Underwriting and advisory fees income. Pension plans Pension Plans [member] Pension Plans [member] Net of income tax provision, reclassification to earnings of (gains) Income Tax Relating To Reclassification To Earnings On Fair Value Through Other Comprehensive Income Securities Income tax relating to reclassification to earnings on fair value through other​ comprehensive​ income securities. CET1 Ratio Common equity tier one capital ratio1 Common shareholder's equity, net of capital adjustments, divided by Common Equity Tier 1 capital risk-weighted assets. Contractual service margin Contractual Service Margin From Contracts Contractual service margin from contracts. Insurance finance income (expense) from insurance and reinsurance contracts held Insurance Finance Income Expenses From Insurance And Reinsurance Contracts Held Insurance finance income expenses from insurance and reinsurance contracts held. Debt Instrument [Axis] Debt Instrument 1 [Axis] Debt instrument 1. Share repurchase program price per share (in canadian dollars per share) Share Repurchase Program Price Per Share Share repurchase program price per share. Very low Very low probability of default [member] Very low probability of default. Class B – Series 50 Class B Series Fifty Preferred Shares [Member] Class b series fifty preferred shares. Non-interest expense Non interest expense excluding amortization Non interest expense excluding amortization. Transfers into Level 3 Transfers into Level 3 of fair value hierarchy, assets Net of income tax (recovery), reclassification to earnings of losses on derivatives designated as cash flow hedges Income Tax Relating To Reclassification To Earnings On Cash Flow Hedges Of Other Comprehensive Income The amount of income tax relating to amounts recognised in other comprehensive income in relation to reclassification to earnings of (gains) losses on cash flow hedges. Deferred tax assets Deferred tax assets Commitments and financial guarantee contracts Exposure to credit risk on loan commitments and financial guarantee contracts Insurance Disclosure of insurance contracts [text block] Non-Controlling Interest in Subsidiaries Non-controlling interests [member] Non-controlling interest in subsidiaries Comprehensive income, attributable to non-controlling interests Sales Sales, fair value measurement, liabilities Cash Flows Provided by (Used in) Financing Activities Cash flows from (used in) financing activities [abstract] Equity interest ownership percent Expected Ownership Of Interest In Subsidiary Expected Ownership Of Interest In Subsidiary Classes of liabilities [domain] Classes of liabilities [domain] U.S. Banking United States Personal and Commercial Banking[Member] United States Personal and Commercial Banking[Member] Base case scenario Base Case Scenario [Member] Base Case Scenario Member. Total Comprehensive Income Comprehensive income Statement of changes in equity [abstract] Retained earnings Retained earnings Measurement [domain] Measurement [domain] Summary of Fair Value of Assets Acquired and Liabilities Assumed at the Date of Acquisition Disclosure of detailed information about business combination [text block] Burgundy Asset Management Ltd. Burgundy Asset Management Ltd. [Member] Burgundy Asset Management Ltd. 7.325% Limited Recourse Capital Notes, Series 3 (LRCNs, Series 3) Seven Point Three Two Five Percentage Limited Recourse Capital Notes Series Three [Member] Seven Point Three Two Five Percentage Limited Recourse Capital Notes Series Three Model changes Model changes allowance account for credit losses of financial assets Amount charged to profit or loss due to changes in the models used to estimate expected credit losses. Basis of Presentation Disclosure of basis of preparation of financial statements [text block] Weighted-average exercise price (in canadian dollars per share) Weighted Average Exercise Price Of Average Outstanding Share Options Excluded From Calculation Of Diluted Earnings Per Share Weighted average exercise price of average outstanding share options excluded from calculation of diluted earnings per share. FVOCI securities - net realized gains Securities At Fair Value Through Other Comprehensive Income Realized Gains Securities at fair value through other comprehensive income realized gains. Onerous contract losses Onerous Contract Losses Onerous Contract Losses Trading Trading Securities Trading Securities At Fair Value Through Profit Or Loss Trading securities at fair value through profit or loss. Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [line items] Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [line items] Proceeds from sales of securities, other than trading Proceeds from Sales of Securities Other Than Trading Classified as Investing Activities Proceeds from sales of securities other than trading, classified as investing activities. Interest Bearing Deposits with Banks Short-term deposits, not classified as cash equivalents Disclosure of detailed information about financial instruments [line items] Disclosure of detailed information about financial instruments [line items] Document Fiscal Period Focus Document Fiscal Period Focus Capital Markets Bmo Capital Markets [Member] Bmo Capital Markets [Member] Loans: Credit cards Credit Card Loans [Member] Credit card loans. Fair Value Measurement [Domain] Fair Value Measurement [Domain] Fair value measurement [Domain] Total interest and dividend income and gains held in our Insurance business Interest And Dividend Income And Gain Losses On Financial Assets Interest and dividend income and gain losses on financial assets. Total Assets Assets Fair value through other comprehensive income FVOCI Securities Securities At Fair Value Through Other Comprehensive Income Net Of Allowances Securities at fair value through other comprehensive income net of allowances. Loans Adjustments for decrease (increase) in loans and advances to customers Liabilities Measurement [Domain] Liabilities Measurement [Domain] Liabilities Measurement [Domain] Disclosure Of interest, dividend and fee income [Line Items] Disclosure Of interest, dividend and fee income [Line Items] Disclosure Of interest, dividend and fee income [Line Items] Investment management and custodial fees Portfolio and other management fee income Summary of Sensitivity Analysis to Changes in Risk Exposures that Arise from Contracts Within Scope of IFRS 17 Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [text block] Non-interest revenue Operating income excluding interest Operating income excluding interest. Securities lent or sold under repurchase agreements Repurchase agreements and cash collateral on securities lent Interest Interest [Member] Interest [Member] Derivative instruments Derivative Assets Derivative financial assets Subsidiaries [axis] Subsidiaries [axis] Net income available to common shareholders Net income available to common shareholders Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share Interest paid in the period Interest paid, classified as operating activities Total Revenue Revenue Trading securities Financial assets at fair value through profit or loss, classified as held for trading Disclosure of detailed information about business combination [abstract] Preferred shares and other equity instruments Preferred Shares and Other Equity Instruments Preferred Shares and Other Equity Instruments [Member] Preferred Shares and Other Equity Instruments Disclosure of deposits payable to customers on a fixed date [line items] Disclosure of deposits payable to customers on a fixed date [line items] Disclosure of deposits payable to customers on a fixed date [line items] Geographical areas [axis] Geographical areas [axis] Maturities of securities, other than trading Maturities of securities other than trading classified as investing activities Maturities of securities other than trading, classified as investing activities. Disclosure of fair value measurement of assets [abstract] Disclosure of fair value measurement of assets [abstract] Acceptances Bank acceptance liabilities Watchlist Watch list [member] Watch list. Restricted cash and cash equivalents Restricted cash and cash equivalents Leverage Exposures Leverage Exposure Measure Leverage exposure. Other Equity Instruments Other Equity Instruments [Member] Other equity instruments. Periodic payment, amount Borrowings, Periodic Principal Payment Borrowings, Periodic Principal Payment Other credit instruments Allowance for Other credit instruments [member] Allowance for credit losses related to other credit instruments [member] Fair value measurement [axis] Fair value measurement [axis] The axis of a table defines the relationshis between the domain members or categories in the table and the line items or concepts that complete the table. Probability of default [axis] Probability of default [axis] Net sale (purchase) of treasury shares Proceeds From Sale Purchase or Issue of Treasury Shares Proceeds from sale purchase or issue of treasury shares. Intangible assets Intangible assets other than goodwill Disclosure of fair value measurement of assets [table] Disclosure of fair value measurement of assets [table] Gross unrealized gains Gross Unrealized Gains [Member] Gross unrealized gains. Total Interest Dividend and Fee Income Interest, dividend and fee income. Statement [Line Items] Statement [Line Items] Statement [Line Items] Total Accumulated Other Comprehensive Income Accumulated other comprehensive income [member] U.S. states, municipalities and agencies U.S. states, municipalities and agencies US State Municipal And Agencies Debt [member] US state municipal and agencies debt. First Citizens and Trust Company First Citizens And Trust Company [Member] First Citizens And Trust Company Segments [domain] Segments [domain] Disclosure of Detailed Information About Amortized Cost Securities [Line Items] Disclosure of Detailed Information About Amortized Cost Securities [Line Items] Disclosure of detailed information about amortized cost securities. Cash and Cash Equivalents Cash and Cash Equivalents at Beginning of Period Cash and Cash Equivalents at End of Period Cash and cash equivalents Proceeds from issuance of subordinated debt (Note 4) Proceeds from issue of subordinated liabilities Comprising: Loans Allowance for loan losses [member] Allowance for credit losses related to loans [member] Modelled allowance account for credit losses of financial assets based on assumptions Modelled allowance account for credit losses of financial assets based on assumptions Modelled allowance account for credit losses of financial assets based on assumptions TLAC Total Loss Absorbing Capacity Total loss absorbing capacity. Money market deposits Money Market Deposits Money market deposits. Total liabilities Liabilities Recognised As Of Acquisition Date Liabilities Recognised As Of Acquisition Date Assets Assets [abstract] Summary of Regulatory Capital Measure and Risk-Weighted Assets Disclosure of regulatory capital and capital ratios [Table Text Block] Disclosure of regulatory capital and capital ratios. Summary of Insurance Service Results Disclosure Of Insurance Service Result Explanatory [Table Text Block] Disclosure of insurance service result explanatory. Transfers into Level 3 Transfers into Level 3 of fair value hierarchy, liabilities Summary of Key Economic Variables Used to Estimate Allowance on Performing Loans During Forecast Period Disclosure of Key Economic Variables Used to Estimate Allowance on Performing Loans During Forecast Period Explanatory [Table Text Block] Disclosure of key economic variables used to estimate allowance on performing loans during forecast period. Yield used to discount cash flows that do not vary based on returns on underlying items Yield used to discount cash flows that do not vary based on returns on underlying items Total Liabilities and Equity Equity and liabilities United States United States UNITED STATES Business combinations [axis] Business combinations [axis] Net remeasurement of loss allowance Net remeasurement of allowance account for credit losses of financial assets Net remeasurement of allowance account for credit losses of financial assets. Normal Course Issuer Bid Normal Course Issuer Bid [Member] Normal course issuer bid. External credit grades [axis] External credit grades [axis] Weighted average fair value of options granted (in canadian dollars per share) Weighted average share price, share options granted Business combinations [domain] Business combinations [domain] Insurance investment results (Notes 2 and 5) Insurance investment results Insurance Investment Results Insurance investment result. Brokers, dealers and clients receivable and payable Adjustment For Brokers Dealers And Clients Receivable And Payable Adjustment for brokers, dealers and clients receivable and payable. Current income taxes Adjustment For Increase Decrease In Current Income Tax Assets Liabilities Adjustment for increase decrease in current income tax assets liabilities. Net change in unrealized gains (losses) on derivatives designated as cash flow hedges Cash flow hedges [abstract] Class B - Series 48 Class B Series Forty Eight Preferred Shares [Member] Class B Series Forty Eight Preferred Shares Loans: Business and government Business and government Business and government loans Business And Government Loans [Member] business and government loans. Deposits Deposits At Fair Value Deposits at fair value. Interest rate contracts Interest Rate Contracts [member] Interest rate contracts. Allowance for credit losses related to other credit instruments Allowance for credit losses related to other credit instruments [Member] Allowance for credit losses related to other credit instruments [Member] Income Taxes Disclosure of income tax [text block] Foreign exchange and other Increase (decrease) through foreign exchange and other movements, financial assets Disclosure of Detailed Information About Amortized Cost Securities [Table] Disclosure of Detailed Information About Amortized Cost Securities [Table] Disclosure of detailed information about amortized cost securities. 4.300% Limited Recourse Capital Notes, Series 1 (LRCNs, Series 1) Four Point Three Percentage Limited Recourse Capital Notes Series One [Member] 4.3% Limited Recourse Capital Notes Series 1 [Member]. Changes in operating assets and liabilities: Changes in operating assets and liabilities [Abstract] Changes in operating assets and liabilities. Net of income tax (provision) recovery, net gains (losses) on remeasurement of own credit risk on financial liabilities designated at fair value Income tax relating to changes in fair value of financial liability attributable to change in credit risk of liability included in other comprehensive income Canadian P&C Canadian Personal and Commercial Banking [Member] Canadian personal and commercial banking. Probability of default [domain] Probability of default [domain] Average earning assets Average Earning Assets Average earning assets. Tier 1 Capital Tier one capital Tier one capital Source Of Deposit [Axis] Source Of Deposit [Axis] Source of deposit. Disclosure of Loans and Allowance for Credit Losses [Abstract] Disclosure of Loans and Allowance for Credit Losses [Abstract] Disclosure of loans and allowance for credit losses. Summary of Classification of Securities Schedule Of Securities By Classification Explanatory [Table Text Block] Schedule of securities by classification explanatory. Insurance service result [abstract] Insurance service result [abstract] Other Assets Other Miscellaneous Assets Other miscellaneous assets. Credit impairment of financial instruments [axis] Credit impairment of financial instruments [axis] Total Capital Total Capital Total Capital Number of branches to be sold Number Of Branches To Be Sold Number Of Branches To Be Sold 10% increase Increase In Profit Or Loss From Ten Percent Increase In Equity Prices Increase In Profit Or Loss From Ten Percent Increase In Equity Prices Diluted Earnings Per Common Share Diluted earnings per share [abstract] Payable after notice Balances on notice deposits from customers Balances on notice deposits from customers Other Assets Miscellaneous assets [abstract] Non interest bearing deposits Non Interest Bearing Deposits instant Non interest bearing deposits. Derivative Liabilities Derivatives Liabilities [member] Derivatives liabilities. Cash and cash equivalents acquired as part of the acquisitions Cash and cash equivalents in subsidiary or businesses acquired or disposed Capital Management Disclosure Of Capital Management [Text Block] The entire disclosure of capital management. Mutual fund revenues Mutual fund revenue Mutual fund revenue. Categories of financial liabilities [domain] Categories of financial liabilities [domain] Insurance service expenses Insurance service expenses from insurance contracts issued Other Increase (decrease) through other changes, equity Cash Flows Provided by (Used in) Investing Activities Cash flows from (used in) investing activities [abstract] Deferred taxes Adjustments for deferred tax expense Amortization of intangible assets Adjustments for amortization of intangible assets Adjustments for amortization of intangible assets Classes of financial assets [domain] Classes of financial assets [domain] Impairment loss recognised in profit or loss, intangible assets and goodwill Impairment loss recognised in profit or loss, intangible assets and goodwill Securitization and structured entities’ liabilities Adjustments For Decrease Increase In Securitization And Structured Entities Liabilities Adjustments For Decrease Increase In Securitization And Structured Entities Liabilities Risk-free rate of return Risk free interest rate, share options granted Unrealized gains (losses) on fair value through OCI debt securities arising during the period Unrealized gains (losses) on fair value through OCI debt securities arising during the period Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax Statement Of Comprehensive Income [Table] Statement Of Comprehensive Income [Table] Statement Of Comprehensive Income Impaired Default And Impaired [Member] Default and impaired. Trading revenues Trading income (expense) Level 3 Level 3 of fair value hierarchy [member] Share repurchase program authorized amount Share Repurchase Program Authorized Amount Share repurchase program authorized amount. Remaining horizon Remaining Two Years Horizon [Member] Remaining two years horizon. Banks Bank Deposits [Member] Bank deposits. Impairment of financial assets [axis] Impairment of financial assets [axis] Issued under the Stock Option Plan Increase (decrease) through share-based payment transactions, equity Goodwill Goodwill recognised as of acquisition date Equity contracts Equity Contracts [member] Equity contracts. U.S. dollars U.S. dollars [member] U.S. dollars. Disclosure of classes of share capital [table] Disclosure of classes of share capital [table] Impairment of financial assets [domain] Impairment of financial assets [domain] Transfer to Stage 1 Transfer to stage one allowance account for credit losses of financial assets Transfer to stage one allowance account for credit losses of financial assets. Disclosure of defined benefit plans [table] Disclosure of defined benefit plans [table] Write-offs Decrease through write-off, financial assets Schedule of Securities By Classification [Line Items] Schedule of Securities By Classification [Line Items] Schedule of Securities By Classification [Line Items] Foreign exchange gains, other than trading Foreign exchange gain (loss) Business and government Business And Government Deposits [Member] Business And Government Deposits [Member] Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [table] Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [table] Net increase (decrease) in liabilities of subsidiaries Increase decrease in liabilities of subsidiaries The increase (decrease) in the liabilities held by subsidiaries. NHA MBS, U.S. agency MBS and CMO NHA MBS, and U.S. agency MBS and CMO NHAMBS US Agency MBS And CMO [Member] NHA MBS and U.S. agency MBS and CMO. Past due status [axis] Past due status [axis] Classification of assets as held for sale Classification of assets as held for sale [member] Expected period until exercise (in years) Option life, share options granted Effect of Exchange Rate Changes on Cash and Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Business and government Loans to business and government The amount of loans to businesses and government made by the entity. Purchased for cancellation Increase Decrease Through Repurchased For Cancellation Increase Decrease Through Repurchased For Cancellation. Insurance service results Increase (decrease) through insurance service result, insurance contracts liability (asset) Net Cash Provided by (Used in) Operating Activities Cash flows from (used in) operating activities Write-down of goodwill and intangible assets Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss Disclosure of terms and conditions of share-based payment arrangement [line items] Disclosure of terms and conditions of share-based payment arrangement [line items] Unencumbered liquid assets Financial assets held for managing liquidity risk Communications Communication expense Employee Compensation Disclosure of share-based payment arrangements [text block] Loans gross of allowance for loan losses Loans Before Allowance For Loan Losses The amount of Retail and Wholesale loans made by the entity before allowance for loan losses. Disclosure of detailed information about financial instruments [table] Disclosure of detailed information about financial instruments [table] Geographical areas [domain] Geographical areas [domain] Disclosure of yield curve used to discount cash flows that do not vary based on returns on underlying items [line items] Disclosure of yield curve used to discount cash flows that do not vary based on returns on underlying items [line items] Deposits at FVTPL Deposits At Fair Value Through Profit And Loss [Member] Deposits At Fair Value Through Profit And Loss [Member] Summary of Non Interest Revenue Disclosure of non interest revenue explanatory [Table Text Block] Disclosure of non interest revenue explanatory. Disclosure of Securities [Abstract] Disclosure of Securities [Abstract] Disclosure of Securities Document Fiscal Year Focus Document Fiscal Year Focus Adjustments to determine net cash flows provided by operating activities: Adjustments to reconcile profit (loss) [abstract] Interest, Dividend and Fee Income Interest income1 [Abstract] Interest income [abstract] Over 12 months Later than one year [member] Additional income tax expense and interest Additional Income Tax And Interest Assessed Additional income tax expense and interest from CRA reassessment. Premises and equipment Premises and equipment related expenses Premises and equipment related expenses Charge recognized on assets reclassified to held for sale, before tax Expected Impact Of Assets Reclassified To Held For Sale, Before Tax Expected Impact Of Assets Reclassified To Held For Sale, Before Tax Levels of fair value hierarchy [axis] Levels of fair value hierarchy [axis] Losses from securities designated at FVTPL Gains (losses) on financial assets at fair value through profit or loss, designated upon initial recognition or subsequently Common shares purchased for cancellation (Note 6) Increase Decrease Through Common Shares Repurchased For Cancellation Increase Decrease Through Common Shares Repurchased For Cancellation. Total Shareholders’ Equity Equity attributable to owners of parent [member] Other assets Other assets [member] Summary of Disclosure Of Financial Assets That Are Past Due But Not Impaired Disclosure Of Financial Assets That Are Past Due But Not Impaired Explanatory [Table Text Block] Disclosure of financial assets that are past due but not impaired. 10% decrease Decrease In Profit Or Loss From Ten Percent Decrease In Equity Prices Decrease In Profit Or Loss From Ten Percent Decrease In Equity Prices Interest and dividend income Interest income on financial assets designated at fair value through profit or loss FVTPL investment securities held by Insurance subsidiaries designated at fair value Related To Securities Held By Insurance Subsidiaries [Member] Related to securities held by insurance subsidiaries [member] Redemption amount Redeemable Preference Shares Value Outstanding Redeemable preference shares value outstanding. Disclosure of credit risk exposure [table] Disclosure of credit risk exposure [table] Other Liabilities Other Liabilities [Member] Other liabilities. Other Other liabilities Other liabilities Pension defined benefit plans Pension defined benefit plans [member] Loans Loans and advances to customers Insurance revenue Insurance revenue Dividends on preferred shares and distributions payable on other equity instruments Increase Decrease Through Dividends And Distributions On Other Equity In Retained Earnings Increase decrease through dividends and distributions on other equity in retained earnings. Dividends received in the period Dividends received, classified as operating activities Gains (losses) on derivatives designated as cash flow hedges arising during the period Gains (losses) on cash flow hedges, net of tax High High probability of default [member] High probability of default. Net expenses from reinsurance contracts Income (expenses) from reinsurance contracts held, other than finance income (expenses) Financial assets past due but not impaired Financial assets past due but not impaired [member] Net of income tax (provision) recovery, net unrealized gains (losses) on fair value through OCI equity securities Income tax relating to remeasurements of defined benefit plans included in other comprehensive income Entity Central Index Key Entity Central Index Key Disaggregation of insurance contracts [axis] Disaggregation of insurance contracts [axis] Loans: Business and government Initially applied IFRSs [axis] Derivative instruments Derivative Liabilities Derivative financial liabilities Characteristics of defined benefit plans [axis] Characteristics of defined benefit plans [axis] Disclosure of credit risk exposure [line items] Disclosure of credit risk exposure [line items] Professional fees Professional fees expense 3 to 6 months Later than three months and not later than six months [member] Canadian provincial and municipal governments Canadian Provincial And Municipal Governments [member] Canadian provincial and municipal governments. Dividends per common share Common shares Common Shares Ordinary shares [member] Domestic stability buffer, percentage Domestic stability buffer, percentage Domestic stability buffer, percentage. Stock options potentially exercisable (in shares) Dilutive effect of share options on weighted average number of ordinary shares Common shares potentially repurchased (in shares) Anti dilutive effect of ordinary common shares potentially repurchased on earning per share Anti-dilutive effect of common shares potentially repurchased on diluted earnings per share calculation. Disclosure of Deposits and Subordinated Debt [Abstract] Disclosure of Deposits and Subordinated Debt [Abstract] Disclosure of Deposits and Subordinated Debt Liabilities Measurement [Axis] Liabilities Measurement [Axis] Liabilities Measurement [Axis] Basic Earnings Per Common Share Basic earnings per share [abstract] Earnings Per Share Disclosure of earnings per share [text block] Attributable to: Profit (loss), attributable to [abstract] Gross carrying amount Gross carrying amount [member] Liabilities and Equity Equity and liabilities [abstract] Summary of Deposits Disclosure Of Deposit Liabilities [Table Text Block] The disclosure of deposit liabilities. Deposit and payment service charges Deposit and payment service charges revenue Deposit and payment service charges revenue. CET1 Capital Common equity tier one capital amount Common equity tier one capital amount Net interest income Interest income (expense) Customers’ liability under acceptances Bank acceptance assets Securities Borrowed or Purchased Under Resale Agreements Reverse repurchase agreements and cash collateral on securities borrowed Unrealized (losses) on translation of net foreign operations Unrealized (losses) on translation of net foreign operations Gains (losses) on exchange differences on translation of foreign operations, net of tax Allowances for credit losses off balance sheet Allowance Account For Credit Losses Off Balance Sheet The amount of an allowance account used to record impairments to off balance sheet due to credit losses. Change in fair value included in other comprehensive income Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, assets 1 year Not later than one year [member] Advertising and business development Advertising And Business Development Advertising and business development. Post-closing period for certain assets under management Business Acquisition, Maximum Amount Of Payment For Contingent Consideration, Period Business Acquisition, Maximum Amount Of Payment For Contingent Consideration, Period Deposits and Subordinated Debt Disclosure Of Deposits And Subordinated Liabilities Explanatory [Text Block] Disclosure of deposits and subordinated liabilities explanatory. Net interest (income) expense Net interest (income) expense Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income) Transfers out of Level 3 Transfers out of Level 3 of fair value hierarchy, liabilities Non-Interest Expense Non interest expense 1 [abstract] Non interest expense 1. Securities commissions and fees Fee and commission income Customer relationship intangible assets Identifiable intangible assets recognised as of acquisition date Financial liabilities at fair value through profit or loss, category Financial liabilities at fair value through profit or loss, category [member] Cash transferred Cash transferred Carrying value At Carrying Value [Member] At carrying value. Scenario weight Scenario Weighting Scenario Weighting Disclosure of financial assets [line items] Disclosure of financial assets [line items] Insurance contracts by remaining coverage and incurred claims [axis] Insurance contracts by remaining coverage and incurred claims [axis] Purchase price Consideration transferred, acquisition-date fair value Severe downside Severe Downside Scenario [Member] Severe downside scenario. Repayment of lease liabilities Payments of lease liabilities, classified as financing activities Securitization and structured entities’ liabilities Securitization and structured entities' liabilities The amount of liabilities associated with securitization programs and structured entities. Medium Medium probability of default [member] Medium probability of default. Share of (profit) loss in associates and joint ventures Adjustments for undistributed profits of investments accounted for using equity method Contributed surplus Additional paid-in capital Equity interest ownership percent Proportion of ownership interest in subsidiary Compound instrument interest rate Compound Instrument Interest Rate Compound Instrument Interest Rate Interest of trade securities in collateralized mortgage obligations Interest Of Trade Securities In Collateralized Mortgage Obligations Interest of trade securities in collateralized mortgage obligations. Entity Registrant Name Entity Registrant Name Residential mortgages Residential Mortgage Loans Residential mortgage loans. Basic (in canadian dollars per share) Basic earnings per common share (in canadian dollars per share) Basic earnings (loss) per share Net purchases of premises and equipment and software Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets Measurement [axis] Measurement [axis] Summary of Pension and Other Employee Future Benefit Expenses Disclosure of pension and other post employment benefit expense [Table Text Block] Disclosure of pension and other post employment benefit expense. Cash dividends paid to non-controlling interest Dividends paid to non-controlling interests, classified as financing activities Statement of cash flows [abstract] Accumulated Other Comprehensive Income (Loss) on Own Credit Risk on Financial Liabilities Designated at Fair Value, net of taxes Accumulated Other Comprehensive Income (Loss) on Own Credit Risk on Financial Liabilities Designated at Fair Value, net of taxes [Member] Accumulated Other Comprehensive Income (Loss) on Own Credit Risk on Financial Liabilities Designated at Fair Value, net of taxes. Weighted-average number of diluted common shares outstanding (in shares) Weighted average number of ordinary shares used in calculating diluted earnings per share Disclosure of financial assets [table] Disclosure of financial assets [table] Loans: Residential mortgages Residential mortgages Mortgages [member] Accumulated other comprehensive income Accumulated other comprehensive income Insurance products Insurance Products [Member] Insurance Products [Member] Repayment of subordinated debt (Note 4) Repayments of subordinated liabilities Repayments of subordinated liabilities FVTPL loans Fair Value Through Profit Or Loss Loans [Member] Fair Value Through Profit Or Loss Loans [Member] Related to performing loans, assuming 100% base case scenario Related to performing loans, assuming hundred percent base case scenario [member] Related to performing loans, assuming hundred percent base case scenario [member] Securitized Loans Securitized Loans [Member] Securitized Loans Items that will subsequently be reclassified to net income Available-for-sale financial assets [abstract] Impairment on FVOCI and amortized cost securities Impairment Loss Recovery On Financial Assets At Fair Value Through Other Comprehensive Income And Amortized Cost Securities Impairment loss recovery on financial assets at fair value through other comprehensive income and amortized cost securities. Association, clearing and annual regulator fees Association Clearing And Annual Regulator Fee Association clearing and annual regulator fee. Deposits (Note 4) Deposits Deposits Deposits1 The amount of deposit liabilities held by the entity. Leverage Ratio Leverage ratio percentage Tier 1 capital divided by the sum of on-balance sheet items and specified off-balance sheet items, net of specified adjustments. Total PCL Provision for credit losses Provision for Credit Losses Provision for credit losses. Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Table] Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Table] Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Table] Other governments Other Governments [Member] Other governments member. Insurance-related liabilities (Note 5) Insurance contracts that are liabilities Provision for credit losses on impaired loans Impaired loans [Member] Impaired loans member. Total loans Loans Past Due But Not Impaired Loans Past Due But Not Impaired Trading Securities Trading securities [member] Issued for acquisition (Note 13) Value of shares issued in an acquisition Increase (decrease) through acquisition of subsidiary, equity Non-controlling interest in subsidiaries Non-controlling interests Debt securities Debt securities [member] Change in unrealized gains (losses) recorded in income for instruments still held Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement Government pension plans expense Government Pension Plans Expense Government pension plans expense. Characteristics of defined benefit plans [domain] Characteristics of defined benefit plans [domain] Summary of Interest, Dividend and Fee Income Disclosure of interest, dividend and fee income [Table Text Block] Disclosure of interest, dividend and fee income [text block] Non-controlling interest in subsidiaries Net income attributable to non-controlling interest in subsidiaries Profit (loss), attributable to non-controlling interests All Currencies [Domain] All Currencies [Domain] Equity Equity [abstract] Purchases/Issuances Purchases, fair value measurement, liabilities Component Of Loan Receivable [Domain] Component Of Loan Receivable [Domain] Component Of Loan Receivable [Domain] Disclosure of operating segments [abstract] Schedule Of Securities By Classification [Table] Schedule Of Securities By Classification [Table] Schedule Of Securities By Classification [Table] Disclosure of fair value measurement of assets [line items] Disclosure of fair value measurement of assets [line items] Lending fees Lending Fees Revenue Lending fees revenue. Depreciation and amortization Amortisation expense Other Comprehensive Income (Loss), net of taxes Other comprehensive income [abstract] Interest bearing Balances On Demand Deposits From Customers Interest Bearing Balances on demand deposits from customers, interest bearing. Net of income tax (provision) recovery, gains (losses) on derivatives designated as cash flow hedges Income tax relating to cash flow hedges included in other comprehensive income Canada Canada CANADA Common equity surcharge, percentage Common equity surcharge, percentage Common equity surcharge, percentage. Classes of share capital [domain] Classes of share capital [domain] Contractual service margin Contractual service margin 50 basis point increase Increase In Profit Or Loss From Fifty Basis Point Increase In Interest Rates Increase In Profit Or Loss From Fifty Basis Point Increase In Interest Rates Net change in unrealized gains (losses) on fair value through OCI debt securities Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income Net proceeds from issuance of common shares (Note 6) Proceeds from issue of ordinary shares FVOCI securities Financial assets at fair value through other comprehensive income, category [member] Classes of financial liabilities [axis] Classes of financial liabilities [axis] Classes of financial liabilities [domain] Classes of financial liabilities [domain] Disclosure of Employee Compensation [Abstract] Disclosure of Employee Compensation [Abstract] Disclosure of Employee Compensation Securities borrowed or purchased under resale agreements Adjustments for decrease (increase) in reverse repurchase agreements and cash collateral on securities borrowed Borrowings, adjustment to interest rate basis Borrowings, adjustment to interest rate basis Net of income tax (provision) recovery, net gains (losses) on remeasurement of pension and other employee future benefit plans Income tax relating to investments in equity instruments included in other comprehensive income Non-Interest Revenue Non Interest Income1 Non interest income. Stock Option Plan Stock Option Plan [member] Stock Option Plan [member] Allowance for credit losses (Note 3) Allowance Account For Credit Losses Of Loans The amount of an allowance account used to record impairments to loans. Acquisition (Note 13) Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Change in fair value included in other comprehensive income Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, liabilities Commodity contracts Commodity Contracts [member] Commodity contracts. Securities lent or sold under repurchase agreements Adjustments for increase (decrease) in repurchase agreements and cash collateral on securities lent Number of operating groups Number of Operating Groups Number of operating groups. 90 days or more Later than three months [member] Disaggregation of insurance contracts [domain] Disaggregation of insurance contracts [domain] Housing Price Index Housing price index Housing price index. 7.700% Limited Recourse Capital Notes, Series 4 (LRCNs, Series 4) Seven Point Seven Percentage Limited Recourse Capital Notes Series Four [Member] Seven point seven percentage limited recourse capital notes series four. Insurance service results (Note 5) Insurance service results Insurance service result Contributed Surplus Share premium [member] Percentage of net deposit premium Percentage Of Net Deposit Premium Percentage Of Net Deposit Premium Types of financial liabilities [axis] Types of financial liabilities [axis] Securities sold but not yet purchased Securities Sold But Not Yet Purchased The fair value of obligations to deliver securities not owned at the time of sale. Bank shareholders Comprehensive income, attributable to owners of parent Purchases/Issuances Purchases, fair value measurement, assets Derivative Liabilities Derivative Liabilities 1 [abstract] Derivative liabilities 1. Derivative assets Adjustments for decrease (increase) in derivative financial assets Total Liabilities Liabilities Deposits with banks Interest income on deposits Issued capital Issued capital Other governments Other Government Securities [member] Other Government Securities [member] Impact of plan amendments Defined Benefit Plans Impact of Plan Amendments Expenses Impact of plan amendments. Contingent consideration recognised as of acquisition date Contingent consideration recognised as of acquisition date Stock option expense, net of options exercised Increase (decrease) through exercise of options, equity Change in fair value included in earnings Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets Categories of financial assets [axis] Categories of financial assets [axis] Gross unrealized losses Gross Unrealized Losses [Member] Gross unrealized losses. Other revenues (losses) Other Revenues Losses Other revenues losses. Debt securities at amortized cost Amortized cost Securities At Amortized Cost Net Of Allowances Securities at amortized cost net of allowances. Credit cards, consumer instalment and other personal Credit card, consumer installment and other personal loans [member] Credit card, consumer installment and other personal loans. Summary of Assets and Liabilities categorized by the Fair Value Hierarchy Disclosure of Fair Value Measurement of Assets and Liabilities [Table Text Block] The disclosure of fair value measurement of assets and liabilities. Disclosure Of Capital Management [Abstract] Disclosure of Capital Management [Abstract] Disclosure of capital management. Number of shares (in shares) Number of shares outstanding Types of financial liabilities [domain] Types of financial liabilities [domain] Products and services [axis] Products and services [axis] Fair Value Measurements Disclosure of fair value measurement [text block] Administrative expenses Administrative expenses, net defined benefit liability (asset) Administrative expenses, net defined benefit liability (asset) Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Line Items] Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Line Items] Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Line Items] Class B – Series 52 Class B series Fifty Two Preferred Shares [Member] Class b series fifty two preferred shares. Provision for income taxes (Note 11) Provision for (recovery of) income taxes Tax expense (income) Credit risk exposure for loans Exposure To Credit Risk On Loans Or Receivables Exposure to credit risk on loans or receivables. Corporate equity Corporate equity [member] Corporate equity. Credit cards Credit card loans Capitalization rate Capitalization Rate Significant Unobservable Input Assets Capitalization rate significant unobservable input assets. Cash Flows Provided by (Used in) Operating Activities Cash flows from (used in) operating activities [abstract] Loans, net Loans net of allowance for credit losses Loans net of allowance for credit losses. Share of profit (loss) in associates and joint ventures Share of profit (loss) of associates and joint ventures accounted for using equity method Adjusted contingent consideration Contingent liabilities recognised in business combination Common shares convertible from stock option plan (in shares) Number Of Shares Convertible Under Stock Option Plan Number of shares convertible under stock option plan. Disclosure of defined benefit plans [line items] Disclosure of defined benefit plans [line items] Fair value liabilities Liabilities at beginning of period Liabilities at end of period Financial liabilities, at fair value Trading loans Loans Held For Trading [Member] Loans Held For Trading [Member] Document Period End Date Document Period End Date Non-adjusting events after reporting period [axis] Non-adjusting events after reporting period [axis] Movement in investment contract liabilities Income Expense Due To Changes In Investment Contract Liabilities Income expense due to changes in investment contract liabilities. Bank Recapitalization (Bail-In) Regime Bank Re capitalization Bailin Regime [Member] Bank Re capitalization Bailin Regime Embedded options related to structured deposits carried at amortized cost Embedded Options Related To Structured Deposits Carried At Amortized Cost Embedded options related to structured deposits carried at amortized cost. Accumulated Other Comprehensive Income on Pension and Other Employee Future Benefit Plans, net of taxes Accumulated Other Comprehensive Income on Pension and Other Employee Future Benefit Plans, net of taxes [Member] Accumulated Other Comprehensive Income on Pension and Other Employee Future Benefit Plans, net of taxes [Member]. Non-adjusting events after reporting period [domain] Non-adjusting events after reporting period [domain] Disclosure of classes of share capital [line items] Disclosure of classes of share capital [line items] Less than 3 months Not later than three months [member] Initially applied IFRSs [domain] Initially applied IFRSs [domain] Deposits held for sale Deposits Held For Sale Deposits Held For Sale Interest expense for liabilities carried at amortized cost Interest Expense for Liabilities Carried at Amortized Cost [Member] Interest Expense for Liabilities Carried at Amortized Cost [Member] Maturity [axis] Maturity [axis] Maturities/Settlement Settlements, fair value measurement, liabilities High Top of range [member] Commitments and financial guarantee contracts Loan commitments and financial guarantee contracts issued [member] Loan commitments and financial guarantee contracts issued. Net premium (discount) on sale of treasury shares Sale or issue of treasury shares Other liabilities Other Liabilities At Fair Value Other liabilities at fair value. Earnings per share [line items] Earnings per share [line items] Canadian federal government Canadian federal government [member] Canadian federal government. Classes of financial instruments [axis] Classes of financial instruments [axis] Goodwill Goodwill Maturities/Settlement Settlements, fair value measurement, assets Net of income tax (provision) recovery, unrealized (losses) on hedges of net foreign operations Income tax relating to hedges of net investments in foreign operations included in other comprehensive income FVTPL securities mandatorily measured at fair value Mandatorily measured at fair value [member] Mandatorily measured at fair value. Number of shares repurchase under normal course issuer bid (in shares) Number Of Shares Repurchase Under Normal Course Issuer Bid Number of shares repurchase under normal course issuer bid. Net gains (losses) on remeasurement of pension and other employee future benefit plans Gains (losses) on remeasurement of pension and other employee future benefit plans Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans Document Type Document Type Interest bearing deposits with banks Cash flows from (used in) decrease (increase) in short-term deposits and investments Share repurchase program number of shares repurchased (in shares) Share Repurchase Program Number Of Shares Repurchased Share repurchase program number of shares repurchased. Classes of financial assets [axis] Classes of financial assets [axis] Types of share based payment arrangements used to calculate dilutive EPS [Axis] Types of share based payment arrangements used to calculate dilutive EPS [Axis] Types of share based payment arrangements used to calculate dilutive EPS [Axis] Items that will not be subsequently reclassified to net income Other comprehensive income that will not be reclassified to profit or loss, net of tax Stage 1 Stage One [member] Stage One [member] Other Liabilities Miscellaneous liabilities [abstract] Card fees Credit card fee income Income on credit card fees. Profit or loss [abstract] Profit or loss [abstract] Reclassification to earnings of losses on derivatives designated as cash flow hedges during the period Reclassification to earnings of losses on derivatives designated as cash flow hedges during the period Reclassification adjustments on cash flow hedges, net of tax 4.800% Additional Tier 1 Capital Notes (AT1 Notes) Four Point Eight percentage Additional Tier 1 Capital Notes NVCC [Member] 4.8% Additional Tier 1 Capital Notes (NVCC). Low Low probability of default [member] Low probability of default. Earnings per share [table] Earnings per share [table] Multiple EV EBITDA Multiple Significant Unobservable Inputs Assets A EV/EBITDA multiple used as a significant Level 3 unobservable input for assets. 20 years Later than ten years and not later than twenty years [Member] Later than ten years and not later than twenty years. Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Shares Buyback Program [Axis] Shares Buyback Program [Axis] Shares Buyback Program [Axis] 30 years Later Than Twenty Years And Not Later Than Thirty Years [Member] Later than twenty years and not later than thirty years. Classes of assets [axis] Classes of assets [axis] Transfer to Stage 3 Transfers to stage three allowance account for credit losses of financial assets Transfers to stage three allowance account for credit losses of financial assets. Derivative liabilities Adjustments for increase (decrease) in derivative financial liabilities Securities sold but not yet purchased Securities Sold But Not Yet Purchased at Fair Value Securities Sold But Not Yet Purchased at Fair Value Insurance contract liabilities, beginning of period Insurance contract liabilities, end of period Insurance contracts liability (asset) 5 years Later than four years and not later than five years [member] Significant Unobservable Inputs in Level 3 Instrument Valuations Disclosure of significant unobservable inputs used in fair value measurement of assets [text block] Accumulated Other Comprehensive Income (Loss) on Cash Flow Hedges, net of taxes Accumulated Other Comprehensive Income Loss on Cash Flow Hedges net of taxes [Member] Accumulated Other Comprehensive Income (Loss) on Cash Flow Hedges, net of taxes. Metal deposits Metal Deposits Metal deposits. Total shareholders’ equity Equity attributable to owners of parent Net of income tax (provision) recovery of unrealized gains (losses) on fair value through OCI debt securities Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income Earnings Per Common Share (Canadian $) (Note 10) Earnings per share [abstract] Interest Expense Interest expense 1 [abstract] Interest expense 1. Non-interest bearing Balances on demand deposits from customers, noninterest bearing Balances on demand deposits from customers, noninterest bearing. Range [axis] Range [axis] Components of equity [axis] Components of equity [axis] Disclosure Of Deposits [Table] Disclosure Of Deposits [Table] Disclosure Of Deposits [Table] Deposits Adjustments for increase (decrease) in deposits from customers Total gross loans and acceptances Gross Total Loans And Acceptances [Member] Gross total loans and acceptances. Income Before Provision for Income Taxes Profit (loss) before tax Other employee future benefit plans Other employee future benefit plans [Member] Other employee future benefit plans. Income taxes paid in the period Income taxes paid (refund), classified as operating activities Total Other Comprehensive Income (Loss), net of taxes Other comprehensive income Classes of liabilities [axis] Classes of liabilities [axis] Disclosure of Basis of Presentation [Abstract] Disclosure of Basis of Presentation [Abstract] Disclosure of Basis of Presentation Counterparties [domain] Counterparties [domain] Transfers out of Level 3 Transfers out of Level 3 of fair value hierarchy, assets Credit default swaps Credit default swaps [member] Credit default swaps. Other liabilities Other Liabilities Recognized As Of Acquisition Date Other Liabilities Recognized As Of Acquisition Date Treasury shares Treasury shares [member] Acquisitions and Divestitures Disclosure Of Acquisitions And Divestitures Explanatory [Text Block] Disclosure Of Acquisitions And Divestitures Explanatory Past due status [domain] Past due status [domain] Principal Principal [Member] Principal [Member] Securities Disclosure of Securities Explanatory [Text Block] Disclosure of Securities Explanatory Purchase price Identifiable assets acquired (liabilities assumed) Depreciation of other assets Adjustments For Depreciation Of Other Assets Adjustments for depreciation of other assets. Net cash provided by operating activities includes: Net Cash Provided by Operating Activities Includes [abstract] [Abstract] Net Cash Provided By Operating Activities Includes. Equity Disclosure of share capital, reserves and other equity interest [text block] Equity interests of acquirer Equity interests of acquirer Securities sold but not yet purchased and securities lent or sold under repurchase agreements Interest Expense On Securities Sold But Not Yet Repurchased And Securities Lent Or Sold Under Repurchase Agreements Interest expense on securities sold but not yet repurchased and securities lent or sold under repurchase agreements. Other items and accruals, net Adjustments For Net Increase Decrease In Other Items And Accruals Net Adjustments For Net Increase Decrease In Other Items And Accruals Net Corporate debt Corporate Debt [member] Corporate debt. Insurance contracts issued Insurance contracts issued [member] Classes of financial instruments [domain] Classes of financial instruments [domain] Disclosure of detailed information about business combination [table] Disclosure of detailed information about business combination [table] Downside Downside Scenarios [Member] Downside scenarios. Loan originations Loan Origination Of Allowance Account For Credit Losses Of Financial Assets Loan origination of allowance account for credit losses of financial assets. Exceptionally low Exceptionally low probability of default [member] Exceptionally low probability of default. Summary of Continuity in Loss Allowance by Each Product Type Disclosure of detailed continuity information about loss allowance by each product type [Table Text Block] Disclosure of detailed continuity information about loss allowance by each product type. Interest received in the period Interest received, classified as operating activities Redeemed during the period Reduction of issued capital Subordinated Debt Subordinated Debt [Member] Subordinated Debt FVTPL loans Loans and Receivables Carried at Fair Value Through Profit or Loss Loans and receivables carried at fair value through profit or loss. LongTerm Debt Instruments [Domain] LongTerm Debt Instruments [Domain] LongTerm Debt Instruments Number of days for which the loan receivable is overdue for the loans to be written off Number Of Days For Which The Loan Receivable Is Overdue For The Loans To Be Written Off Number of days for which the loan receivable is overdue for the loans to be written off. Wealth Management Wealth management [member] Wealth management. Interest expense for liabilities carried at fair value Interest Expense for Liabilities Carried at Fair Value [Member] Interest Expense for Liabilities Carried at Fair Value [Member] Products and services [domain] Products and services [domain] Summary of Operating Segments Disclosure of operating segments [text block] Subsidiaries [domain] Subsidiaries [domain] Weighted-average number of common shares outstanding (in shares) Weighted-average number of common shares outstanding (in shares) Weighted average number of ordinary shares used in calculating basic earnings per share Disclosure Of Deposits [Line Items] Disclosure Of Deposits [Line Items] Disclosure Of Deposits [Line Items] TLAC Leverage Ratio Total Loss Absorbing Capacity Leverage Ratio Total loss absorbing capacity leverage ratio. Liabilities for incurred claims Liabilities for incurred claims that arise from contracts within scope of IFRS 17 Summary of Classes of Preferred and Common Shares Outstanding Disclosure of classes of share capital [text block] Capital conservation buffer, percentage Capital conservation buffer, percentage Capital conservation buffer, percentage. Allowance for credit losses related to loans Allowance for credit losses related to loans [Member] Allowance for credit losses related to loans [Member] Summary of the Insurance Liability by Remaining Coverage and Incurred Claims Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [text block] Class B – Series 44 Class B Series Forty Four Preferred Shares [Member] Class B Series Forty Four Preferred Shares. Total pension and other employee future benefit expenses recognized in our Consolidated Statement of Income Pension And Other Employee Future Benefit Expenses Recovery Pension and other employee future benefit expenses (recovery). FVTPL securities Non Trading Securities At Fair Value Through Profit Or Loss Non Interest Revenue Non Trading Securities At Fair Value Through Profit Or Loss Non Interest Revenue Non USD Non CAD Non USD Non CAD [Member] NonUSD NonCAD. Defined benefit plans [domain] Defined benefit plans [domain] Net Interest Income Interest income expense net1 Interest income (expense), net Number of share options exercisable in share-based payment arrangement (in shares) Number of share options exercisable in share-based payment arrangement Borrowings, interest rate Borrowings, interest rate Net Cash Provided by (Used in) Investing Activities Cash flows from (used in) investing activities Risk-Weighted Assets Common equity tier one capital ratio risk weighted assets Common equity tier one capital ratio risk weighted assets Net increase (decrease) in Cash and Cash Equivalents Increase (decrease) in cash and cash equivalents after effect of exchange rate changes Unemployment rates Unemployment rate Unemployment rate. Loans (Note 3) Loans Loans [abstract] Loans [abstract] Component Of Loan Receivable [Axis] Component Of Loan Receivable [Axis] Component Of Loan Receivable [Axis] Realized gains (losses) from FVOCI securities Realized Gains From Fair Value Through Other Comprehensive Income Securities Realized gains from fair value through other comprehensive income securities. Charge recognized on assets reclassified to held for sale, after tax Expected Impact Of Assets Reclassified To Held For Sale, After Tax Expected Impact Of Assets Reclassified To Held For Sale, After Tax Insurance-related liabilities Adjustments For Increase Decrease In Insurance Related Liabilities Adjustments for increase decrease in insurance related liabilities. Subordinated Debt (Note 4) Subordinated debt Subordinated liabilities Net Cash Provided by (Used in) Financing Activities Cash flows from (used in) financing activities Employee compensation Employee benefits expense Unrealized gains on hedges of net foreign operations Unrealized gains on hedges of net foreign operations Gains (losses) on hedges of net investments in foreign operations, net of tax Counterparties [axis] Counterparties [axis] Consumer instalment and other personal Loans to consumers Amortization of intangible assets Amortisation, intangible assets other than goodwill Subordinated debt Interest Expense On Subordinated Debt Instruments Interest expense on subordinated debt instruments. Preferred Shares – Classified as Equity Preference shares [member] Other Liabilities Other miscellaneous liabilities Other miscellaneous liabilities. Disclosure of operating segments [table] Disclosure of operating segments [table] Statement of changes in equity [table] Statement of changes in equity [table] Periodic payment, period Borrowings, Periodic Principal Payment, Period Borrowings, Periodic Principal Payment, Period Payable to brokers, dealers and clients Payable To Brokers Dealers And Clients Payable to brokers, dealers and clients. Change in unrealized gains (losses) recorded in income for instruments still held Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for liabilities held at end of period, fair value measurement Provision for Credit Losses (Note 3) Total provision for credit losses Increase Decrease In Allowance Account For Credit Losses Of Loans Increase (decrease) in allowance account for credit losses of loans. Change in fair value included in earnings Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities Performing loans, stage one scenario Performing loans, stage one scenario [member] Performing loans, stage one scenario [member] Other assets Other Assets Recognised As Of Acquisition Date Other Assets Recognised As Of Acquisition Date Summary of Detailed Information About Amortized Cost Securities Disclosure Of Detailed Information About Amortized Cost Securities Explanatory [Table Text Block] Disclosure of detailed information about amortized cost securities explanatory. Disclosure of classes of share capital [abstract] Disclosure of classes of share capital [abstract] Accumulated Other Comprehensive Income (Loss) on Fair Value through OCI Securities, net of taxes Accumulated Other Comprehensive Income loss On Fair Value Through Other Comprehensive Income Securities Net Of Taxes [Member] Accumulated other comprehensive income loss on fair value through other comprehensive income securities net of taxes. Ultimate After Thirty Years [Member] After thirty years. Loans Interest income on loans and advances to customers Stage 2 Stage Two [Member] Stage Two [Member] Segments [axis] Segments [axis] Not Rated Not Rated [Member] Not Rated [Member] Classes of assets [domain] Classes of assets [domain] Current Fiscal Year End Date Current Fiscal Year End Date Other Assets Precious Metals And Other Receivables At Fair Value Precious metals and other receivables at fair value. Loans held for sale Loans Asset Held For Sale Loans Asset Held For Sale Not Carried at Fair Value Not Carried At Fair Value [Member] Not Carried At Fair Value [Member] Summary of Interest and Dividend Income and Gains on Securities Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business Explanatory [Table Text Block] Disclosure in tabular form of interest and dividend income on securities and gains on securities in respect of insurance business. Disclosure of Income Tax [Abstract] Disclosure of income taxes. Net gains (losses) on remeasurement of own credit risk on financial liabilities designated at fair value Gains on remeasurement of own credit risk on financial liabilities designated at fair value Other comprehensive income, net of tax, change in fair value of financial liability attributable to change in credit risk of liability Low Bottom of range [member] Non-Interest Expense Non Interest Expense 1 Non interest expense. Total Bank Securities Carrying Amount Bank securities carrying amount. 5.625% Limited Recourse Capital Notes, Series 2 (LRCNs, Series 2) Five Point Six Two Five Percentage Limited Recourse Capital Notes Series Two [Member] 5.625% Limited Recourse Capital Notes, Series 2 (Series 2 LRCNs). Expected share price volatility Expected volatility, share options granted 10 years Later than five years and not later than ten years [member] Amortized cost securities Financial assets at amortised cost, category [member] Recoveries of previous write-offs Recoveries on loans previously written off Total amortized cost deposits Deposits Amortized Cost [Member] Deposits Amortized Cost [Member] Canadian provincial and municipal governments Canadian government provincia [member] Canadian government provincial. Net Income Net Income Net income attributable to bank shareholders Profit (loss) Reclassification to earnings of (gains) during the period Reclassification to earnings of (gains) during the period Reclassification adjustments on financial assets measured at fair value through other comprehensive income, net of tax Receivable from brokers, dealers and clients Receivable From Brokers Dealers And Clients Receivable from brokers, dealers and clients. Net change in unrealized gains (losses) on derivatives designated as cash flow hedges Other comprehensive income, net of tax, cash flow hedges Securities sold but not yet purchased Adjustments For Decrease Increase In Securities Sold But Not Yet Purchased Adjustments For Decrease Increase In Securities Sold But Not Yet Purchased Loans and Allowance for Credit Losses Disclosure of loans and advances to customers [text block] Investment return Insurance Investment Return Insurance investment return. Expected dividend yield Expected dividend as percentage, share options granted Defined contribution expense Post-employment benefit expense, defined contribution plans Exercise price Weighted average exercise price of share options granted in share-based payment arrangement Loans: Consumer instalment and other personal Consumer installment and other personal loans [member] Consumer installment and other personal loans. Amendment Flag Amendment Flag Components of equity [domain] Components of equity [domain] Payable on a fixed date Deposits booked payable on a fixed date Balances on term deposits from customers Sub-investment grade Sub investment grade [member] Sub investment grade. Disclosure of operating segments [line items] Disclosure of operating segments [line items] Debentures Series 20 Debentures Series 20 [Member] Debentures Series 20 Allowances for credit losses Balance as at beginning of period Balance as at end of period ACL Allowance For Credit Losses On Financial Assets Allowance for credit losses on financial assets. Reinsurance contracts held Reinsurance contracts held [member] Derecognitions and maturities Derecognitions and maturities allowance account for credit losses of financial assets Derecognitions and maturities allowance account for credit losses of financial assets. Net finance expenses (income) from insurance contracts Increase (decrease) through insurance finance income or expenses, insurance contracts liability (asset) LongTerm Debt Instruments [Axis] LongTerm Debt Instruments [Axis] LongTerm Debt Instruments Operating Segmentation Disclosure of entity's operating segments [text block] Current tax assets Current tax assets Treasury shares sold Sale or Purchase of Treasury Shares Sale or purchase of treasury shares. Dividends per common share (in canadian dollars per share) Dividends declared per share (in canadian dollars per share) Dividends recognised as distributions to owners per share Average assets Average assets Average assets. Insurance contracts by remaining coverage and incurred claims [domain] Insurance contracts by remaining coverage and incurred claims [domain] Range [domain] Range [domain] 7.300% Limited Recourse Capital Notes, Series 5 (LRCNs, Series 5) Seven Point Three Percentage Limited Recourse Capital Notes Series Five [Member] Seven point three percentage limited recourse capital notes series five. Retained Earnings Retained earnings [member] Other Non Interest Expense Other Non-interest expense other. Interest, Dividend and Fee Income Interest income Disclosure of yield curve used to discount cash flows that do not vary based on returns on underlying items [table] Disclosure of yield curve used to discount cash flows that do not vary based on returns on underlying items [table] 30 to 89 days Later than one month and not later than three months [member] Debt Instrument [Domain] Debt Instrument 1 [Domain] Debt Instrument 1 [Domain] Internal credit grades [domain] Internal credit grades [domain] Securities (Note 2) Securities The amount of securities consisting of bonds, share certificates or other debt or equity ownership measured at either fair value through profit and loss, fair value through other comprehensive income or at amortized cost. Loans net of allowance for loan losses Loans Net Of Allowance For Loan Losses The amount of Retail and Wholesale loans made by the entity net of allowance for loan losses. IFRS9 IFRS 9 [member] Securities borrowed or purchased under resale agreements Interest Income On Securities Borrowed Or Purchased Under Resale Agreement Interest income on securities borrowed or purchased under resale agreements. Depreciation of premises and equipment Adjustments for Depreciation Of Premises and Equipment Adjustments for depreciation of premises and equipment. Summary of Changes in Level 3 Instruments Carried at Fair Value Disclosure Of Reconciliation Of Changes In Fair Value Measurement Assets Liabilities [Table Text Block] Disclosure of reconciliation of changes in fair value measurement assets liabilities. Non-Interest Revenue Non interest income 1 [abstract] Non interest income 1. Stonepeak Partners LP Newly Combined Entity Stonepeak Partners LP Newly Combined Entity [Member] Stonepeak Partners LP Newly Combined Entity Fair value Financial assets at fair value, class [member] External credit grades [domain] External credit grades [domain] Real GDP growth rates Real Gross Domestic Product Growth Rate Real gross domestic product growth rate. Categories of financial assets [domain] Categories of financial assets [domain] All Other Operating Segments All Other Operating Segments [Member] All Other Operating Segments [Member] Carrying amount Carrying amount [member] Securities gains, other than trading (Note 2) Securities Gains Losses Other Than Trading Securities gains (losses), other than trading. Notional amount Notional amount Derivative Assets Derivatives Asset [Member] Derivatives Asset [Member] Types of share based payment arrangements used to calculate dilutive EPS [Domain] Types of share based payment arrangements used to calculate dilutive EPS [Domain] Types of share based payment arrangements used to calculate dilutive EPS [Domain] Securities (Note 2) Securities Securities [abstract] Securities. Current service cost Current service cost, defined benefit plans Securities (Note 2) Interest income on securities Income on securities. Liabilities for remaining coverage Net liabilities or assets for remaining coverage excluding loss component [member] Net (losses) on translation of net foreign operations Exchange differences on translation [abstract] Currency [Axis] Currency [Axis] Common stock conversion price Common Stock Conversion Price Common stock price conversion per share. Summary of Insurance Investment Results Disclosure Of Insurance Investment Results Explanatory [Table Text Block] Disclosure of insurance investment results explanatory. Diluted (in canadian dollars per share) Diluted earnings per common share (in canadian dollars per share) Diluted earnings (loss) per share Maturity [domain] Maturity [domain] Statement Of Income [Table] Statement Of Income [Table] Statement Of Income Summary of Ranges of Values used for each Option Pricing Assumption Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] Categories of financial liabilities [axis] Categories of financial liabilities [axis] Common shares issued under stock option plan (in shares) Number Of Shares Issued Under Stock Option Plan Number Of Shares Issued Under Stock Option Plan. Disclosure of deposits payable to customers on a fixed date [table] Disclosure of deposits payable to customers on a fixed date [table] Disclosure of deposits payable to customers on a fixed date [table] Credit impairment of financial instruments [domain] Credit impairment of financial instruments [domain] Source Of Deposit [Domain] Source Of Deposit [Domain] Source of deposit domain Transfer to Stage 2 Transfers to stage two allowance account for credit losses of financial assets Transfers to stage two allowance account for credit losses of financial assets. Derivative Assets Derivative Assets 1 [abstract] Derivative assets 1. U.S. states, municipalities and agencies US States, municipalities and agencies [Member] US States, municipalities and agencies. Total cash flows Increase (decrease) through cash flows, insurance contracts liability (asset) Deposits liabilities Deposit liabilities Accrued interest receivable and payable Adjustment For Increase Decrease In Accrued Interest Receivable And Payable Adjustment for increase decrease in accrued interest receivable and payable. Fair value At fair value [member] Gross commitments and financial guarantee contracts Gross Commitments and Financial Guarantee Contracts [Member] Gross commitments and financial guarantee contracts. U.S. federal government U.S. federal government US federal Government[Member] US federal Government. Summary of Basic and Diluted Earnings Per Share Earnings per share [text block] Residential mortgages Residential mortgages loans Residential mortgages loans. Shares Buyback Program [Domain] Shares Buyback Program [Domain] Shares Buyback Program [Domain] Fair value through profit or loss Total FVTPL securities Non Trading Securities at Fair value Through Profit or Loss Non trading securities at fair value through profit or loss. Benefits expense Postemployment Benefit Expense Post employment benefit expense. Summary of Credit Risk Exposures for Loans Carried at Amortized Cost, FVOCI or FVTPL Disclosure of loans credit risk exposure Explanatory [Table Text Block] The disclosure of loans credit risk exposure. Dilutive impact of stock options Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract] Dilutive potential shares from stock options Dilutive potential shares from stock options [Member] Dilutive potential shares from stock options [Member] Internal credit grades [axis] Internal credit grades [axis] Internal credit grades [axis]