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Shareholder Report
 6 Months Ended
Apr. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name BNY Mellon Worldwide Growth Fund, Inc.
Entity Central Index Key 0000897569
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2025
C000000155 [Member]  
Shareholder Report [Line Items]  
Fund Name BNY Mellon Worldwide Growth Fund, Inc.
Class Name Class A
Trading Symbol PGROX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about BNY Mellon Worldwide Growth Fund, Inc. (the “Fund”) for the period of November 1, 2024 to April 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at bny.com/investments/literaturecenter. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com.
Additional Information Phone Number 1-800-373-9387
Additional Information Email info@bny.com
Additional Information Website bny.com/investments/literaturecenter
Expenses [Text Block]
What were the Fund’s costs for the last six months ?
(based on a hypothetical $10,000 investment)
Share Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Class A $54 1.11%*
*
Annualized.
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.11% [1]
Net Assets $ 952,000,000
Holdings Count | Holding 45
Investment Company Portfolio Turnover 3.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (AS OF 4/30/25 )

Fund Size (Millions)
Number of Holdings
Portfolio Turnover
$952 45 3.51%
Not FDIC Insured. Not Bank-Guaranteed. May Lose Value
Holdings [Text Block]
Portfolio Holdings (as of 4/30/25 )
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
Sector Allocation (Based on Net Assets)
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
C000000157 [Member]  
Shareholder Report [Line Items]  
Fund Name BNY Mellon Worldwide Growth Fund, Inc.
Class Name Class C
Trading Symbol PGRCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about BNY Mellon Worldwide Growth Fund, Inc. (the “Fund”) for the period of November 1, 2024 to April 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at bny.com/investments/literaturecenter. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com.
Additional Information Phone Number 1-800-373-9387
Additional Information Email info@bny.com
Additional Information Website bny.com/investments/literaturecenter
Expenses [Text Block]
What were the Fund’s costs for the last six months ?
(based on a hypothetical $10,000 investment)
Share Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Class C $94 1.92%*
*
Annualized.
Expenses Paid, Amount $ 94
Expense Ratio, Percent 1.92% [2]
Net Assets $ 952,000,000
Holdings Count | Holding 45
Investment Company Portfolio Turnover 3.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (AS OF 4/30/25 )

Fund Size (Millions)
Number of Holdings
Portfolio Turnover
$952 45 3.51%
Not FDIC Insured. Not Bank-Guaranteed. May Lose Value
Holdings [Text Block]
Portfolio Holdings (as of 4/30/25 )
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
Sector Allocation (Based on Net Assets)
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
C000000158 [Member]  
Shareholder Report [Line Items]  
Fund Name BNY Mellon Worldwide Growth Fund, Inc.
Class Name Class I
Trading Symbol DPWRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about BNY Mellon Worldwide Growth Fund, Inc. (the “Fund”) for the period of November 1, 2024 to April 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at bny.com/investments/literaturecenter. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com.
Additional Information Phone Number 1-800-373-9387
Additional Information Email info@bny.com
Additional Information Website bny.com/investments/literaturecenter
Expenses [Text Block]
What were the Fund’s costs for the last six months ?
(based on a hypothetical $10,000 investment)
Share Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Class I $45 0.92%*
*
Annualized.
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.92% [3]
Net Assets $ 952,000,000
Holdings Count | Holding 45
Investment Company Portfolio Turnover 3.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (AS OF 4/30/25 )

Fund Size (Millions)
Number of Holdings
Portfolio Turnover
$952 45 3.51%
Not FDIC Insured. Not Bank-Guaranteed. May Lose Value
Holdings [Text Block]
Portfolio Holdings (as of 4/30/25 )
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
Sector Allocation (Based on Net Assets)
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
C000130308 [Member]  
Shareholder Report [Line Items]  
Fund Name BNY Mellon Worldwide Growth Fund, Inc.
Class Name Class Y
Trading Symbol DPRIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about BNY Mellon Worldwide Growth Fund, Inc. (the “Fund”) for the period of November 1, 2024 to April 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at bny.com/investments/literaturecenter. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com.
Additional Information Phone Number 1-800-373-9387
Additional Information Email info@bny.com
Additional Information Website bny.com/investments/literaturecenter
Expenses [Text Block]
What were the Fund’s costs for the last six months ?
(based on a hypothetical $10,000 investment)
Share Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Class Y $39 0.80%*
*
Annualized.
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.80% [4]
Net Assets $ 952,000,000
Holdings Count | Holding 45
Investment Company Portfolio Turnover 3.51%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (AS OF 4/30/25 )

Fund Size (Millions)
Number of Holdings
Portfolio Turnover
$952 45 3.51%
Not FDIC Insured. Not Bank-Guaranteed. May Lose Value
Holdings [Text Block]
Portfolio Holdings (as of 4/30/25 )
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
Sector Allocation (Based on Net Assets)
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Ten Holdings (Based on Net Assets) *
Graphical Representation - Top N Holdings Chart
* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
[1] Annualized.
[2] Annualized.
[3] Annualized.
[4] Annualized.