Document and Entity Information [Abstract] Document Information [Table] Legal Entity [Axis] Entity [Domain] Represents the Retirement Plan EBP 001. E B P 001 [Member] 401(k) PLAN Document Information [Line Items] Document Type Entity Registrant Name Entity Central Index Key Amendment Flag Statements of Net Assets Available for Benefits EBP, Statement of Net Asset Available for Benefit [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Common Stock [Member] Common stock Common Collective Trust [Member] Common collective trusts Mutual Fund [Member] Mutual funds EBP, Pooled Separate Account [Member] Pooled separate accounts EBP, Self-Directed Brokerage Account [Member] Self-directed brokerage accounts EBP, Statement of Net Asset Available for Benefit [Line Items] Statements of Net Assets Available for Benefits EBP, Asset [Abstract] Assets: EBP, Investment, Fair Value [Abstract] Participant directed investments, at fair value: EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Total investments Fair Market Value of Common Shares EBP, Investment Program, Single Participation Status [Extensible Enumeration] EBP, Investment Program, Single Participation Status [Extensible Enumeration] EBP, Receivable [Abstract] Receivables: EBP, Employer Contribution, Receivable Employer contribution EBP, Participant Contribution, Receivable Participant contribution EBP, Other Receivable Other EBP, Note Receivable from Participant Notes receivable from participants EBP, Receivable Total receivables EBP, Net Asset Available for Benefit End of year Beginning of year Net assets available for benefits Statement of Changes in Net Assets Available for Benefits EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statement of Changes in Net Assets Available for Benefits EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Additions to net assets attributable to: EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment [Abstract] Investment income: EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment Interest EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Dividends EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Total EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash Employer EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Participants EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total contributions EBP, Change in Net Asset Available for Benefit, Increase Total additions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Deductions from net assets attributable to: EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefits paid to participants EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease Total deductions EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Net increase Description of the Plan EBP, Description of Plan [Table] EBP, Description of Plan [Line Items] Description of the Plan EBP, Description of Plan [Text Block] Description of the Plan Significant Accounting Policies EBP, Accounting Policy [Table] EBP, Accounting Policy [Line Items] Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Significant Accounting Policies Fair Value Measurements EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Line Items] Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurements Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Line Items] Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Party-in-Interest Transactions Income Taxes EBP, Tax Status [Table] EBP, Tax Status [Line Items] Income Taxes EBP, Tax Status [Text Block] Income Taxes Subsequent Events EBP, Subsequent Event [Table] EBP, Subsequent Event [Line Items] Subsequent Events EBP, Subsequent Event [Text Block] Subsequent Events Schedule H Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Line Items] Schedule H Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Schedule H Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) EBP, Basis of Accounting [Policy Text Block] Basis of Presentation EBP, Use of Estimate [Policy Text Block] Use of Estimates Disclosure of accounting policy for income recognition and investment valuation held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Investment Valuation and Income Recognition [Policy Text Block] Investment Valuation and Income Recognition EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants EBP, Payment to Participant [Policy Text Block] Payment of Participant Benefits EBP, Expense [Policy Text Block] Administrative Expenses EBP, Risk and Uncertainty [Policy Text Block] Risks and Uncertainties Disclosure of accounting policy for Concentration risk in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Concentration Risk [Policy Text Block] Concentrations Tabular disclosure of vesting percentage for participants whose employment terminates prior to his or her Normal Retirement Date for reasons other than death or total disability. Employee Benefit Plan, Vesting Percentage [Table Text Block] Schedule of vesting percentage EBP, Investment, Fair Value and NAV [Table Text Block] Schedule of the plan's investments measured at fair value EBP, Related Party and Party-in-Interest Transactions [Table Text Block] Schedule of party-in-Interest Transactions EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Participant contribution, percent EBP, Employer Contribution, Matching Percentage Employer contribution, percent EBP, Employer Contribution, Participant Compensation Matched, Percentage Percentage of participant eligible compensation Information by years of service completion by participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Completed Years of Service [Axis] Employee Benefit Plan, Years of Vesting Service [Axis] Years of vesting service completion by participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Completed Years of Service [Domain] Employee Benefit Plan, Years of Vesting Service [Domain] Represents information pertaining to less than two years of service completion. Employee Benefit Plan, Less Than Two Years Of Service Completed [Member] Less than 2 years Represents information pertaining to two years of service completion. Employee Benefit Plan, Two Years Of Service Completed [Member] 2 Represents information pertaining to three years of service completion. Employee Benefit Plan, Three Years Of Service Completed [Member] 3 Represents information pertaining to four years of service completion. Employee Benefit Plan, Four Years Of Service Completed [Member] 4 Represents information pertaining to five or more years of service completion. Employee Benefit Plan, Five Or More Years Of Service Completed [Member] 5 or more Represents the percentage of vesting. Employee Benefit Plan, Vesting Percentage Vesting percentage Amount of decrease in forfeited nonvested account of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from utilization as per plan provision. Employee Benefit Plan, Forfeited Nonvested Account, Utilized Amount forfeited used in plan provisions EBP, Forfeited Nonvested Account Amount of forfeited non vested accounts Represents the participant age requirement to receive vested accrued benefit of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Participant Age To Receive Vested Benefit Participant's age to receive vested benefit Amount of threshold for partial distribution of vested accounts. Employee Benefit Plan, Threshold Amount For Partial Distribution Threshold for partial distribution of vested accounts Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Minimum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Maximum borrowing percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Maximum borrowing amount Represents the maximum number of loans outstanding at a time. Employee Benefit Plan, Note Receivable From Participant, Maximum Number Of Loans Number of loans Percentage of interest rate for note receivables from participants. Employee Benefit Plan, Note Receivable From Participant, Interest Rate Interest rate Term of participant loan of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Note Receivable From Participant, Loan Term Loan term Extended term of participant loan of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Note Receivable From Participant, Extended Loan Term Extended loan term EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Total Investments, Percentage Percentage of investment in RBC common stock Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Fair value hierarchy Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value, Inputs, Level 2 [Member] Level 2 Fair Value Measured at Net Asset Value Per Share [Member] Net asset value EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Domain] Represents employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan Employer [Member] Employer EBP, Investment, Number of Shares Number of Common Shares EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost Cost of Common Shares EBP, Tax Determination Letter, Obtained [true false] Determination letter obtained EBP, Tax Determination Letter, Date Determination letter date EBP, Tax Qualification Status [Extensible Enumeration] Tax qualification status Investment, Identifier [Axis] Entity Tax Identification Number Entity tax identification number EBP, Plan Number Plan number EBP, Investment, Issuer Name [Extensible Enumeration] Investment issuer name EBP, Investment, Current Value, Type [Extensible Enumeration] Investment type EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution CNB PARTICIPATION LOANS EBP, Asset Held for Investment, Participant Loan, Interest Rate Interest rate EBP, Asset Held for Investment, Participant Loan, Maturity Date Maturity date EBP, Asset Held for Investment TOTAL ASSETS EBP, Asset Held for Investment, Party-in-Interest [true false] Asset held for Investment, Party-in-interest EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] Participation Status