S 000000342 Summary1 [Member] Prospectus Summary Prospectus Summary S 000000342 [Member] BNY Mellon Balanced Opportunity Fund BNY Mellon Balanced Opportunity Fund C 000000867 [Member] A A C 000000869 [Member] C C C 000000870 [Member] I I C 000174004 [Member] Y Y C 000001397 [Member] Z Z cik0001224568_PrincipalRisksMember [Member] Principal Risks Principal Risks cik0001224568_ManagementriskMember [Member] · Management risk · Management risk cik0001224568_CorrelationriskMember [Member] · Correlation risk · Correlation risk cik0001224568_LiquidityriskMember [Member] · Liquidity risk · Liquidity risk cik0001224568_IssuerriskMember [Member] · Issuer risk · Issuer risk cik0001224568_MarketriskMember [Member] · Market risk · Market risk cik0001224568_RisksofstockinvestingMember [Member] · Risks of stock investing · Risks of stock investing cik0001224568_GrowthandvaluestockriskMember [Member] · Growth and value stock risk · Growth and value stock risk cik0001224568_ForeigninvestmentriskMember [Member] · Foreign investment risk · Foreign investment risk cik0001224568_Fixed-incomemarketriskMember [Member] · Fixed-income market risk · Fixed-income market risk cik0001224568_InterestrateriskMember [Member] · Interest rate risk · Interest rate risk cik0001224568_CreditriskMember [Member] · Credit risk · Credit risk cik0001224568_SP500reflectsnodeductionsforfeesexpensesortaxes1Member [Member] S&P 500*, reflects no deductions for fees, expenses or taxes S&P 500*, reflects no deductions for fees, expenses or taxes cik0001224568_BloombergAggregatereflectsnodeductionsforfeesexpensesortaxes2Member [Member] Bloomberg Aggregate*, reflects no deductions for fees, expenses or taxes Bloomberg Aggregate*, reflects no deductions for fees, expenses or taxes cik0001224568_CustomizedBlendedIndex60SP500and40BloombergAggregatereflectsnodeductionsforfeesexpensesortaxes3Member [Member] Customized Blended Index (60% S&P 500 and 40% Bloomberg Aggregate), reflects no deductions for fees, expenses or taxes Customized Blended Index (60% S&P 500 and 40% Bloomberg Aggregate), reflects no deductions for fees, expenses or taxes S 000000342 Summary2 [Member] Prospectus Summary Prospectus Summary C 000000872 [Member] J J cik0001224568_SP500reflectsnodeductionsforfeesexpensesortaxes4Member [Member] S&P 500*, reflects no deductions for fees, expenses or taxes S&P 500*, reflects no deductions for fees, expenses or taxes cik0001224568_BloombergAggregatereflectsnodeductionsforfeesexpensesortaxes5Member [Member] Bloomberg Aggregate*, reflects no deductions for fees, expenses or taxes Bloomberg Aggregate*, reflects no deductions for fees, expenses or taxes cik0001224568_CustomizedBlendedIndex60SP500and40BloombergAggregatereflectsnodeductionsforfeesexpensesortaxes6Member [Member] Customized Blended Index (60% S&P 500 and 40% Bloomberg Aggregate), reflects no deductions for fees, expenses or taxes Customized Blended Index (60% S&P 500 and 40% Bloomberg Aggregate), reflects no deductions for fees, expenses or taxes Document Type Document Type Document Period End Date Document Period End Date Entity Central Index Key Entity Central Index Key Amendment Flag Amendment Flag Document Creation Date Document Creation Date EntityInvCompanyType EntityInvCompanyType Registrant Name Registrant Name Document Effective Date Document Effective Date Prospectus Date Prospectus Date Trading Symbol Trading Symbol Risk/Return [Heading] Risk/Return [Heading] Objective [Heading] Objective [Heading] Objective, Primary [Text Block] Objective, Primary [Text Block] Objective, Secondary [Text Block] Objective, Secondary [Text Block] Expense [Heading] Expense [Heading] Expense Narrative [Text Block] Expense Narrative [Text Block] Expense Breakpoint Discounts [Text] Expense Breakpoint Discounts [Text] Expense Breakpoint, Minimum Investment Required [Amount] Expense Breakpoint, Minimum Investment Required [Amount] Shareholder Fees Caption [Text] Shareholder Fees Caption [Text] Operating Expenses Caption [Text] Operating Expenses Caption [Text] Expense Example [Heading] Expense Example [Heading] Expense Example Narrative [Text Block] Expense Example Narrative [Text Block] Expense Example, with Redemption, 1 Year 1 Year Expense Example, with Redemption, 3 Years 3 Years Expense Example, with Redemption, 5 Years 5 Years Expense Example, with Redemption, 10 Years 10 Years Expense Example, No Redemption, 1 Year 1 Year Expense Example, No Redemption, 3 Years 3 Years Expense Example, No Redemption, 5 Years 5 Years Expense Example, No Redemption, 10 Years 10 Years Portfolio Turnover [Heading] Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Portfolio Turnover, Rate Strategy [Heading] Strategy [Heading] Strategy Narrative [Text Block] Strategy Narrative [Text Block] Strategy Portfolio Concentration [Text] Strategy Portfolio Concentration [Text] Risk [Heading] Risk [Heading] Risk [Text Block] Risk [Text Block] Bar Chart and Performance Table [Heading] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance Information Illustrates Variability of Returns [Text] Performance Additional Market Index [Text] Performance Additional Market Index [Text] Bar Chart Does Not Reflect Sales Loads [Text] Bar Chart Does Not Reflect Sales Loads [Text] Performance Availability Website Address [Text] Performance Availability Website Address [Text] Performance Past Does Not Indicate Future [Text] Performance Past Does Not Indicate Future [Text] Performance Availability Phone [Text] Performance Availability Phone [Text] Performance One Year or Less [Text] Performance One Year or Less [Text] Performance Table Narrative Performance Table Narrative Performance Table One Class of after Tax Shown [Text] Performance Table One Class of after Tax Shown [Text] Performance Table Does Reflect Sales Loads Performance Table Does Reflect Sales Loads Performance Table Uses Highest Federal Rate Performance Table Uses Highest Federal Rate Performance Table Explanation after Tax Higher Performance Table Explanation after Tax Higher Performance Table Not Relevant to Tax Deferred Performance Table Not Relevant to Tax Deferred Bar Chart [Heading] Bar Chart [Heading] Annual Return 2015 Annual Return 2015 Annual Return 2016 Annual Return 2016 Annual Return 2017 Annual Return 2017 Annual Return 2018 Annual Return 2018 Annual Return 2019 Annual Return 2019 Annual Return 2020 Annual Return 2020 Annual Return 2021 Annual Return 2021 Annual Return 2022 Annual Return 2022 Annual Return 2023 Annual Return 2023 Annual Return 2024 Annual Return 2024 Bar Chart Closing [Text Block] Bar Chart Closing [Text Block] Highest Quarterly Return, Label Label Highest Quarterly Return, Date Highest Quarterly Return, Date Highest Quarterly Return Highest Quarterly Return Lowest Quarterly Return, Label Label Lowest Quarterly Return, Date Lowest Quarterly Return, Date Lowest Quarterly Return Lowest Quarterly Return Year to Date Return, Label Year to Date Return, Label Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Bar Chart, Year to Date Return Performance Table Market Index Changed Performance Table Market Index Changed Money Market Seven Day Yield, Caption [Text] Money Market Seven Day Yield, Caption [Text] Money Market Seven Day Yield Phone Money Market Seven Day Yield Phone Average Annual Return, Caption Average Annual Return, Caption Label Label 1 Year 1 Year 5 Years 5 Years 10 Years 10 Years Inception Date Inception Date Index No Deduction for Fees, Expenses, Taxes [Text] Index No Deduction for Fees, Expenses, Taxes [Text] Fee Waiver or Reimbursement over Assets, Date of Termination Fee Waiver or Reimbursement over Assets, Date of Termination Expenses Deferred Charges [Text Block] Expenses Deferred Charges [Text Block] Document [Axis] Document [Axis] Series [Axis] Series [Axis] Prospectus Prospectus Prospectus: Prospectus: Risk/Return: Risk/Return: Shareholder Fees [Table] Shareholder Fees [Table] Annual Fund Operating Expenses [Table] Annual Fund Operating Expenses [Table] Expense Example, With Redemption [Table] Expense Example, With Redemption [Table] Expense Example, No Redemption [Table] Expense Example, No Redemption [Table] Bar Chart [Table] Bar Chart [Table] Performance [Table] Performance [Table] Market Index Performance [Table] Market Index Performance [Table] Performance Measure [Axis] Performance Measure [Axis] Share Class [Axis] Share Class [Axis] Before Taxes Before Taxes After Taxes on Distributions After Taxes on Distributions After Taxes on Distributions and Sales After Taxes on Distributions and Sales Risk [Axis] Risk [Axis] All Risks [Member] All Risks [Member] Risk Lose Money [Member] Risk Lose Money [Member] Risk Not Insured [Member] Risk Not Insured [Member] Risk Nondiversified Status [Member] Risk Nondiversified Status [Member] Risk Not Insured Depository Institution [Member] Risk Not Insured Depository Institution [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] Risk Money Market Fund May Not Preserve Dollar [Member] Risk Money Market Fund May Not Preserve Dollar [Member] Maximum sales charge (load) imposed on purchases(as a percentage of offering price) Maximum deferred sales charge (load)(as a percentage of lower of purchase or sale price) Management fees Distribution (12b-1) fees Shareholder services fees Miscellaneous other expenses Total other expenses Total annual fund operating expenses Fee waiver and/or expense reimbursement Total annual fund operating expenses(after fee waiver and/or expense reimbursement) Risks [Table Text Block] Risks [Table Text Block]