Voya Multi-Manager International Equity Fund Performance Management - Class I and P Shares [Member] - Voya Multi-Manager International Equity Fund	Oct. 31, 2025
Prospectus [Line Items]
Bar Chart and Performance Table [Heading]	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Performance Information</span>
Performance Narrative [Text Block]	The following information is intended to help you understand the risks of investing in the Fund. The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index and an additional index with investment characteristics similar to those of the Fund for the same period. In 2024, the Investment Adviser changed the Fund’s primary benchmark from the MSCI EAFE® Index to the MSCI ACWI ex-U.S. IndexSM in accordance with changes to regulatory disclosure requirements. The Fund continues to use the MSCI EAFE® Index as an additional benchmark that the Investment Adviser believes more closely reflects the Fund’s principal investment strategies. The Fund's performance information reflects applicable fee waivers and/or expense limitations in effect during the period presented. Absent such fee waivers/expense limitations, if any, performance would have been lower.On February 28, 2025, Acadian was added as additional sub-adviser and Polaris Capital Management, LLC (“Polaris”) (which served as a sub-adviser from January 20, 2017 to February 28, 2025) was removed as a sub-adviser. On May 7, 2024, Lazard and Voya IM were added as additional sub-advisers. On May 6, 2024 Baillie Gifford Overseas Limited (which served as a sub-adviser from January 6, 2011 to May 6, 2024) was removed as a sub-adviser. On July 27, 2020, Lazard (which served as a sub-adviser from July 1, 2013 to July 27, 2020) was removed as a sub-adviser. On January 20, 2017, Polaris and Wellington Management were added as additional sub-advisers and J.P. Morgan Investment Management Inc. (which served as a sub-adviser from July 1, 2013 to January 20, 2017) and T. Rowe Price Associates, Inc. (which served as a sub-adviser from December 15, 2010 to January 20, 2017) were removed as sub-advisers. These changes to the sub-advisers resulted in a change to the Fund’s principal investment strategies. The Fund’s performance information for these periods reflects returns achieved by the different sub-advisers and pursuant to different principal investment strategies. If the Fund’s current sub-advisers and strategies had been in place for the prior period, the performance information shown would have been different. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to https://individuals.voya.com/literature or call 1-800-992-0180.
Performance Past Does Not Indicate Future [Text]	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;"> The Fund's past performance (before and after taxes) is no guarantee of future results.</span>
Performance Information Illustrates Variability of Returns [Text]	<span style="font-family:Arial;font-size:9.30pt;">The following bar chart shows </span><span style="font-family:Arial;font-size:9.30pt;margin-left:0%;">the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index and an additional index with investment characteristics similar to those of the Fund for the same period.</span>
Performance Additional Market Index [Text]	<span style="font-family:Arial;font-size:9.30pt;">The Fund continues to </span><span style="font-family:Arial;font-size:9.30pt;margin-left:0%;">use the MSCI EAFE</span><span style="font-family:Arial;font-size:4.5pt;position:relative;top:-7pt;">®</span><span style="font-family:Arial;font-size:9.30pt;"> Index as an additional benchmark that the Investment Adviser believes more closely reflects the Fund’s </span><span style="font-family:Arial;font-size:9.30pt;margin-left:0%;">principal investment strategies.</span>
Bar Chart [Heading]	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Calendar Year Total Returns </span><span style="color:#000000;font-family:Arial;font-size:7.44pt;">Class I </span> <br/><span style="color:#000000;font-family:Arial;font-size:7.44pt;">(as of December 31 of each year)</span>
Bar Chart Closing [Text Block]	Best quarter:2nd Quarter 202020.00%Worst quarter:1st Quarter 2020-25.76%
Performance Table Heading	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Average Annual Total Returns </span><span style="font-family:Arial;font-size:7.44pt;">% </span> <br/><span style="font-family:Arial;font-size:7.44pt;">(for the periods ended December 31, 2025)</span>
Performance Table Narrative	After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”). In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Performance Table Uses Highest Federal Rate	<span style="color:#000000;font-family:Arial;font-size:9.30pt;margin-left:0%;">After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> Actual after-tax returns depend on an investor's tax situation and may differ from those </span><span style="color:#000000;font-family:Arial;font-size:9.30pt;margin-left:0%;">shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (</span><span style="color:#000000;font-family:Arial;font-size:9.30pt;">“IRAs”).</span>
Performance Table Explanation after Tax Higher	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.</span>
Index No Deduction for Fees, Expenses, or Taxes [Text]	<span style="font-family:Arial Narrow;font-size:8pt;">The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.</span>
Performance Availability Website Address [Text]	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;">https://individuals.voya.com/literature</span>
Performance Availability Phone [Text]	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;">1-800-992-0180</span>
Class I
Prospectus [Line Items]
Highest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Arial;font-size:7.44pt;font-weight:bold;margin-left:0.0pt;">Best quarter:</span>
Highest Quarterly Return	20.00%
Highest Quarterly Return, Date	Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text]	<span style="color:#000000;font-family:Arial;font-size:7.44pt;font-weight:bold;margin-left:0.0pt;">Worst quarter:</span>
Lowest Quarterly Return	(25.76%)
Lowest Quarterly Return, Date	Mar. 31, 2020

Voya Multi-Manager International Equity Fund Performance Management - Class I and P Shares [Member] - Voya Multi-Manager International Equity Fund

Oct. 31, 2025

Bar Chart and Performance Table [Heading]

Performance Information

Performance Narrative [Text Block]

The following information is intended to help you understand the risks of investing in the Fund. The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index and an additional index with investment characteristics similar to those of the Fund for the same period. In 2024, the Investment Adviser changed the Fund’s primary benchmark from the MSCI EAFE® Index to the MSCI ACWI ex-U.S. IndexSM in accordance with changes to regulatory disclosure requirements. The Fund continues to use the MSCI EAFE® Index as an additional benchmark that the Investment Adviser believes more closely reflects the Fund’s principal investment strategies. The Fund's performance information reflects applicable fee waivers and/or expense limitations in effect during the period presented. Absent such fee waivers/expense limitations, if any, performance would have been lower.On February 28, 2025, Acadian was added as additional sub-adviser and Polaris Capital Management, LLC (“Polaris”) (which served as a sub-adviser from January 20, 2017 to February 28, 2025) was removed as a sub-adviser. On May 7, 2024, Lazard and Voya IM were added as additional sub-advisers. On May 6, 2024 Baillie Gifford Overseas Limited (which served as a sub-adviser from January 6, 2011 to May 6, 2024) was removed as a sub-adviser. On July 27, 2020, Lazard (which served as a sub-adviser from July 1, 2013 to July 27, 2020) was removed as a sub-adviser. On January 20, 2017, Polaris and Wellington Management were added as additional sub-advisers and J.P. Morgan Investment Management Inc. (which served as a sub-adviser from July 1, 2013 to January 20, 2017) and T. Rowe Price Associates, Inc. (which served as a sub-adviser from December 15, 2010 to January 20, 2017) were removed as sub-advisers. These changes to the sub-advisers resulted in a change to the Fund’s principal investment strategies. The Fund’s performance information for these periods reflects returns achieved by the different sub-advisers and pursuant to different principal investment strategies. If the Fund’s current sub-advisers and strategies had been in place for the prior period, the performance information shown would have been different. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to https://individuals.voya.com/literature or call 1-800-992-0180.

Performance Past Does Not Indicate Future [Text]

The Fund's past performance (before and after taxes) is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index and an additional index with investment characteristics similar to those of the Fund for the same period.

Performance Additional Market Index [Text]

The Fund continues to use the MSCI EAFE® Index as an additional benchmark that the Investment Adviser believes more closely reflects the Fund’s principal investment strategies.

Bar Chart [Heading]

Calendar Year Total Returns Class I (as of December 31 of each year)

Bar Chart Closing [Text Block]

Best quarter:2nd Quarter 202020.00%Worst quarter:1st Quarter 2020-25.76%

Performance Table Heading

Average Annual Total Returns % (for the periods ended December 31, 2025)

Performance Table Narrative

After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”). In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Performance Table Uses Highest Federal Rate

After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”).

Performance Table Explanation after Tax Higher

In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Index No Deduction for Fees, Expenses, or Taxes [Text]

The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.

Performance Availability Website Address [Text]

https://individuals.voya.com/literature

Performance Availability Phone [Text]

1-800-992-0180

Class I

Prospectus [Line Items]

Highest Quarterly Return, Label [Optional Text]

Best quarter:

Highest Quarterly Return

20.00%

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return, Label [Optional Text]

Worst quarter:

Lowest Quarterly Return

(25.76%)

Lowest Quarterly Return, Date

Mar. 31, 2020