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Shareholder Report

6 Months Ended

Jun. 30, 2025

USD ($)

Holding

Shareholder Report [Line Items]

N-CSRS

false

Registrant Name

Voya Variable Portfolios, Inc.

Entity Central Index Key

0001015965

Entity Investment Company Type

N-1A

Document Period End Date

Jun. 30, 2025

Shareholder Report [Line Items]

Voya Global High Dividend Low Volatility Portfolio

Class ADV

IGHAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Global High Dividend Low Volatility Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$58	1.10%

Expenses Paid, Amount

$ 58

Expense Ratio, Percent

1.10%

$ 492,433,265

Holdings Count | Holding

239

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$492,433,265
# of Portfolio Holdings239
Portfolio Turnover Rate39%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	2.0%
Countries-Other	4.4%
Australia	1.3%
Switzerland	1.3%
Spain	1.4%
Netherlands	1.6%
Germany	1.6%
Italy	1.8%
France	3.0%
Canada	4.0%
United Kingdom	4.6%
Japan	4.7%
United States	68.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.3%
Industrials	13.6%
Health Care	12.5%
Consumer Staples	9.3%
Communication Services	8.5%
Information Technology	6.6%
Energy	6.1%
Utilities	5.5%
Real Estate	4.3%
Consumer Discretionary	3.6%
Materials	2.7%
Exchange-Traded Funds	1.5%
Short-Term Investments	2.5%
Liabilities in Excess of Other Assets	(2.0)%

Largest Holdings [Text Block]

Top 10 Holdings

Meta Platforms, Inc. - Class A	2.3%
Johnson & Johnson	1.5%
Procter & Gamble Co.	1.5%
Cisco Systems, Inc.	1.4%
AbbVie, Inc.	1.4%
Wells Fargo & Co.	1.2%
Raytheon Technologies Corp.	1.1%
AT&T, Inc.	1.1%
iShares Russell 1000 Value ETF	1.1%
Verizon Communications, Inc.	1.0%

Shareholder Report [Line Items]

Voya Global High Dividend Low Volatility Portfolio

Class I

IIGZX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Global High Dividend Low Volatility Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$32	0.60%

Expenses Paid, Amount

$ 32

Expense Ratio, Percent

0.60%

$ 492,433,265

Holdings Count | Holding

239

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$492,433,265
# of Portfolio Holdings239
Portfolio Turnover Rate39%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	2.0%
Countries-Other	4.4%
Australia	1.3%
Switzerland	1.3%
Spain	1.4%
Netherlands	1.6%
Germany	1.6%
Italy	1.8%
France	3.0%
Canada	4.0%
United Kingdom	4.6%
Japan	4.7%
United States	68.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.3%
Industrials	13.6%
Health Care	12.5%
Consumer Staples	9.3%
Communication Services	8.5%
Information Technology	6.6%
Energy	6.1%
Utilities	5.5%
Real Estate	4.3%
Consumer Discretionary	3.6%
Materials	2.7%
Exchange-Traded Funds	1.5%
Short-Term Investments	2.5%
Liabilities in Excess of Other Assets	(2.0)%

Largest Holdings [Text Block]

Top 10 Holdings

Meta Platforms, Inc. - Class A	2.3%
Johnson & Johnson	1.5%
Procter & Gamble Co.	1.5%
Cisco Systems, Inc.	1.4%
AbbVie, Inc.	1.4%
Wells Fargo & Co.	1.2%
Raytheon Technologies Corp.	1.1%
AT&T, Inc.	1.1%
iShares Russell 1000 Value ETF	1.1%
Verizon Communications, Inc.	1.0%

Shareholder Report [Line Items]

Voya Global High Dividend Low Volatility Portfolio

Class S

IGHSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Global High Dividend Low Volatility Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$45	0.85%

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.85%

$ 492,433,265

Holdings Count | Holding

239

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$492,433,265
# of Portfolio Holdings239
Portfolio Turnover Rate39%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	2.0%
Countries-Other	4.4%
Australia	1.3%
Switzerland	1.3%
Spain	1.4%
Netherlands	1.6%
Germany	1.6%
Italy	1.8%
France	3.0%
Canada	4.0%
United Kingdom	4.6%
Japan	4.7%
United States	68.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.3%
Industrials	13.6%
Health Care	12.5%
Consumer Staples	9.3%
Communication Services	8.5%
Information Technology	6.6%
Energy	6.1%
Utilities	5.5%
Real Estate	4.3%
Consumer Discretionary	3.6%
Materials	2.7%
Exchange-Traded Funds	1.5%
Short-Term Investments	2.5%
Liabilities in Excess of Other Assets	(2.0)%

Largest Holdings [Text Block]

Top 10 Holdings

Meta Platforms, Inc. - Class A	2.3%
Johnson & Johnson	1.5%
Procter & Gamble Co.	1.5%
Cisco Systems, Inc.	1.4%
AbbVie, Inc.	1.4%
Wells Fargo & Co.	1.2%
Raytheon Technologies Corp.	1.1%
AT&T, Inc.	1.1%
iShares Russell 1000 Value ETF	1.1%
Verizon Communications, Inc.	1.0%

Shareholder Report [Line Items]

Voya Global High Dividend Low Volatility Portfolio

Class S2

IWTTX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Global High Dividend Low Volatility Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$53	1.00%

Expenses Paid, Amount

$ 53

Expense Ratio, Percent

1.00%

$ 492,433,265

Holdings Count | Holding

239

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$492,433,265
# of Portfolio Holdings239
Portfolio Turnover Rate39%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	2.0%
Countries-Other	4.4%
Australia	1.3%
Switzerland	1.3%
Spain	1.4%
Netherlands	1.6%
Germany	1.6%
Italy	1.8%
France	3.0%
Canada	4.0%
United Kingdom	4.6%
Japan	4.7%
United States	68.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.3%
Industrials	13.6%
Health Care	12.5%
Consumer Staples	9.3%
Communication Services	8.5%
Information Technology	6.6%
Energy	6.1%
Utilities	5.5%
Real Estate	4.3%
Consumer Discretionary	3.6%
Materials	2.7%
Exchange-Traded Funds	1.5%
Short-Term Investments	2.5%
Liabilities in Excess of Other Assets	(2.0)%

Largest Holdings [Text Block]

Top 10 Holdings

Meta Platforms, Inc. - Class A	2.3%
Johnson & Johnson	1.5%
Procter & Gamble Co.	1.5%
Cisco Systems, Inc.	1.4%
AbbVie, Inc.	1.4%
Wells Fargo & Co.	1.2%
Raytheon Technologies Corp.	1.1%
AT&T, Inc.	1.1%
iShares Russell 1000 Value ETF	1.1%
Verizon Communications, Inc.	1.0%

Shareholder Report [Line Items]

Voya Index Plus LargeCap Portfolio

Class ADV

VIPAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus LargeCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$53	1.05%

Expenses Paid, Amount

$ 53

Expense Ratio, Percent

1.05%

$ 888,346,596

Holdings Count | Holding

211

InvestmentCompanyPortfolioTurnover

33.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$888,346,596
# of Portfolio Holdings211
Portfolio Turnover Rate33%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.0%
Short-Term Investments	1.6%
Common Stock	98.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	32.6%
Financials	13.5%
Communication Services	9.8%
Consumer Discretionary	9.8%
Industrials	9.1%
Health Care	8.9%
Consumer Staples	5.5%
Energy	3.1%
Utilities	2.5%
Real Estate	2.1%
Materials	1.5%
Short-Term Investments	1.6%
Assets in Excess of Other Liabilities	0.0%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	7.7%
Microsoft Corp.	7.0%
Apple, Inc.	5.4%
Amazon.com, Inc.	4.1%
Alphabet, Inc. - Class A	3.7%
Meta Platforms, Inc. - Class A	3.0%
Broadcom, Inc.	2.3%
Johnson & Johnson	1.1%
Tesla, Inc.	1.1%
Berkshire Hathaway, Inc. - Class B	1.1%

Shareholder Report [Line Items]

Voya Index Plus LargeCap Portfolio

Class I

IPLIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus LargeCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$28	0.55%

Expenses Paid, Amount

$ 28

Expense Ratio, Percent

0.55%

$ 888,346,596

Holdings Count | Holding

211

InvestmentCompanyPortfolioTurnover

33.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$888,346,596
# of Portfolio Holdings211
Portfolio Turnover Rate33%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.0%
Short-Term Investments	1.6%
Common Stock	98.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	32.6%
Financials	13.5%
Communication Services	9.8%
Consumer Discretionary	9.8%
Industrials	9.1%
Health Care	8.9%
Consumer Staples	5.5%
Energy	3.1%
Utilities	2.5%
Real Estate	2.1%
Materials	1.5%
Short-Term Investments	1.6%
Assets in Excess of Other Liabilities	0.0%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	7.7%
Microsoft Corp.	7.0%
Apple, Inc.	5.4%
Amazon.com, Inc.	4.1%
Alphabet, Inc. - Class A	3.7%
Meta Platforms, Inc. - Class A	3.0%
Broadcom, Inc.	2.3%
Johnson & Johnson	1.1%
Tesla, Inc.	1.1%
Berkshire Hathaway, Inc. - Class B	1.1%

Shareholder Report [Line Items]

Voya Index Plus LargeCap Portfolio

Class S

IPLSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus LargeCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$41	0.80%

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.80%

$ 888,346,596

Holdings Count | Holding

211

InvestmentCompanyPortfolioTurnover

33.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$888,346,596
# of Portfolio Holdings211
Portfolio Turnover Rate33%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.0%
Short-Term Investments	1.6%
Common Stock	98.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	32.6%
Financials	13.5%
Communication Services	9.8%
Consumer Discretionary	9.8%
Industrials	9.1%
Health Care	8.9%
Consumer Staples	5.5%
Energy	3.1%
Utilities	2.5%
Real Estate	2.1%
Materials	1.5%
Short-Term Investments	1.6%
Assets in Excess of Other Liabilities	0.0%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	7.7%
Microsoft Corp.	7.0%
Apple, Inc.	5.4%
Amazon.com, Inc.	4.1%
Alphabet, Inc. - Class A	3.7%
Meta Platforms, Inc. - Class A	3.0%
Broadcom, Inc.	2.3%
Johnson & Johnson	1.1%
Tesla, Inc.	1.1%
Berkshire Hathaway, Inc. - Class B	1.1%

Shareholder Report [Line Items]

Voya Index Plus MidCap Portfolio

Class I

IPMIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus MidCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$30	0.60%

Expenses Paid, Amount

$ 30

Expense Ratio, Percent

0.60%

$ 767,485,562

Holdings Count | Holding

299

InvestmentCompanyPortfolioTurnover

32.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$767,485,562
# of Portfolio Holdings299
Portfolio Turnover Rate32%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.2)%
Short-Term Investments	1.0%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	22.4%
Financials	17.8%
Consumer Discretionary	13.3%
Information Technology	11.3%
Health Care	8.9%
Real Estate	7.2%
Consumer Staples	5.1%
Materials	5.0%
Energy	3.8%
Utilities	3.1%
Communication Services	1.3%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.2)%

Largest Holdings [Text Block]

Top 10 Holdings

EMCOR Group, Inc.	1.1%
US Foods Holding Corp.	1.1%
Equitable Holdings, Inc.	1.1%
Curtiss-Wright Corp.	1.1%
Pure Storage, Inc. - Class A	1.0%
AECOM	1.0%
Core & Main, Inc. - Class A	0.9%
Unum Group	0.9%
RPM International, Inc.	0.8%
Flex Ltd.	0.8%

Shareholder Report [Line Items]

Voya Index Plus MidCap Portfolio

Class S

IPMSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus MidCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$42	0.85%

Expenses Paid, Amount

$ 42

Expense Ratio, Percent

0.85%

$ 767,485,562

Holdings Count | Holding

299

InvestmentCompanyPortfolioTurnover

32.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$767,485,562
# of Portfolio Holdings299
Portfolio Turnover Rate32%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.2)%
Short-Term Investments	1.0%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	22.4%
Financials	17.8%
Consumer Discretionary	13.3%
Information Technology	11.3%
Health Care	8.9%
Real Estate	7.2%
Consumer Staples	5.1%
Materials	5.0%
Energy	3.8%
Utilities	3.1%
Communication Services	1.3%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.2)%

Largest Holdings [Text Block]

Top 10 Holdings

EMCOR Group, Inc.	1.1%
US Foods Holding Corp.	1.1%
Equitable Holdings, Inc.	1.1%
Curtiss-Wright Corp.	1.1%
Pure Storage, Inc. - Class A	1.0%
AECOM	1.0%
Core & Main, Inc. - Class A	0.9%
Unum Group	0.9%
RPM International, Inc.	0.8%
Flex Ltd.	0.8%

Shareholder Report [Line Items]

Voya Index Plus SmallCap Portfolio

Class I

IPSIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus SmallCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$29	0.60%

Expenses Paid, Amount

$ 29

Expense Ratio, Percent

0.60%

$ 361,828,412

Holdings Count | Holding

475

InvestmentCompanyPortfolioTurnover

32.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$361,828,412
# of Portfolio Holdings475
Portfolio Turnover Rate32%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(2.2)%
Short-Term Investments	4.6%
Common Stock	97.6%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.9%
Industrials	18.7%
Information Technology	12.5%
Consumer Discretionary	12.2%
Health Care	10.3%
Real Estate	6.6%
Materials	5.0%
Energy	3.9%
Consumer Staples	3.2%
Communication Services	2.9%
Utilities	2.4%
Short-Term Investments	4.6%
Liabilities in Excess of Other Assets	(2.2)%

Largest Holdings [Text Block]

Top 10 Holdings

SPX Technologies, Inc.	0.8%
Merit Medical Systems, Inc.	0.7%
Mr Cooper Group, Inc.	0.7%
Sterling Infrastructure, Inc.	0.7%
Stride, Inc.	0.7%
Adtalem Global Education, Inc.	0.7%
Urban Outfitters, Inc.	0.7%
Phillips Edison & Co., Inc.	0.7%
First BanCorp/Puerto Rico	0.7%
EnPro Industries, Inc.	0.7%

Shareholder Report [Line Items]

Voya Index Plus SmallCap Portfolio

Class S

IPSSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Index Plus SmallCap Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$41	0.85%

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.85%

$ 361,828,412

Holdings Count | Holding

475

InvestmentCompanyPortfolioTurnover

32.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$361,828,412
# of Portfolio Holdings475
Portfolio Turnover Rate32%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(2.2)%
Short-Term Investments	4.6%
Common Stock	97.6%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.9%
Industrials	18.7%
Information Technology	12.5%
Consumer Discretionary	12.2%
Health Care	10.3%
Real Estate	6.6%
Materials	5.0%
Energy	3.9%
Consumer Staples	3.2%
Communication Services	2.9%
Utilities	2.4%
Short-Term Investments	4.6%
Liabilities in Excess of Other Assets	(2.2)%

Largest Holdings [Text Block]

Top 10 Holdings

SPX Technologies, Inc.	0.8%
Merit Medical Systems, Inc.	0.7%
Mr Cooper Group, Inc.	0.7%
Sterling Infrastructure, Inc.	0.7%
Stride, Inc.	0.7%
Adtalem Global Education, Inc.	0.7%
Urban Outfitters, Inc.	0.7%
Phillips Edison & Co., Inc.	0.7%
First BanCorp/Puerto Rico	0.7%
EnPro Industries, Inc.	0.7%

Shareholder Report [Line Items]

Voya International Index Portfolio

Class ADV

IIIAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya International Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$51	0.94%

Expenses Paid, Amount

$ 51

Expense Ratio, Percent

0.94%

$ 1,212,633,438

Holdings Count | Holding

733

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,212,633,438
# of Portfolio Holdings733
Portfolio Turnover Rate2%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	1.4%
Countries-Other	11.3%
Sweden	3.0%
Spain	3.1%
Italy	3.1%
Netherlands	4.2%
Switzerland	4.9%
Australia	6.8%
France	9.3%
United States	10.1%
Germany	10.2%
United Kingdom	11.2%
Japan	21.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	23.5%
Industrials	18.8%
Health Care	11.1%
Consumer Discretionary	9.6%
Information Technology	8.3%
Consumer Staples	7.9%
Materials	5.5%
Communication Services	5.4%
Utilities	3.5%
Energy	3.1%
Real Estate	1.9%
Short-Term Investments	6.7%
Liabilities in Excess of Other Assets	(5.3)%

Largest Holdings [Text Block]

Top 10 Holdings

SAP SE	1.7%
ASML Holding NV	1.6%
Nestle SA	1.4%
Novartis AG	1.2%
Roche Holding AG	1.2%
Novo Nordisk A/S - Class B	1.2%
AstraZeneca PLC	1.1%
HSBC Holdings PLC	1.1%
Shell PLC	1.1%
Commonwealth Bank of Australia	1.1%

Shareholder Report [Line Items]

Voya International Index Portfolio

Class I

IIIIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya International Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$25	0.45%

Expenses Paid, Amount

$ 25

Expense Ratio, Percent

0.45%

$ 1,212,633,438

Holdings Count | Holding

733

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,212,633,438
# of Portfolio Holdings733
Portfolio Turnover Rate2%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	1.4%
Countries-Other	11.3%
Sweden	3.0%
Spain	3.1%
Italy	3.1%
Netherlands	4.2%
Switzerland	4.9%
Australia	6.8%
France	9.3%
United States	10.1%
Germany	10.2%
United Kingdom	11.2%
Japan	21.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	23.5%
Industrials	18.8%
Health Care	11.1%
Consumer Discretionary	9.6%
Information Technology	8.3%
Consumer Staples	7.9%
Materials	5.5%
Communication Services	5.4%
Utilities	3.5%
Energy	3.1%
Real Estate	1.9%
Short-Term Investments	6.7%
Liabilities in Excess of Other Assets	(5.3)%

Largest Holdings [Text Block]

Top 10 Holdings

SAP SE	1.7%
ASML Holding NV	1.6%
Nestle SA	1.4%
Novartis AG	1.2%
Roche Holding AG	1.2%
Novo Nordisk A/S - Class B	1.2%
AstraZeneca PLC	1.1%
HSBC Holdings PLC	1.1%
Shell PLC	1.1%
Commonwealth Bank of Australia	1.1%

Shareholder Report [Line Items]

Voya International Index Portfolio

Class S

INTIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya International Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$38	0.70%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.70%

$ 1,212,633,438

Holdings Count | Holding

733

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,212,633,438
# of Portfolio Holdings733
Portfolio Turnover Rate2%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	1.4%
Countries-Other	11.3%
Sweden	3.0%
Spain	3.1%
Italy	3.1%
Netherlands	4.2%
Switzerland	4.9%
Australia	6.8%
France	9.3%
United States	10.1%
Germany	10.2%
United Kingdom	11.2%
Japan	21.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	23.5%
Industrials	18.8%
Health Care	11.1%
Consumer Discretionary	9.6%
Information Technology	8.3%
Consumer Staples	7.9%
Materials	5.5%
Communication Services	5.4%
Utilities	3.5%
Energy	3.1%
Real Estate	1.9%
Short-Term Investments	6.7%
Liabilities in Excess of Other Assets	(5.3)%

Largest Holdings [Text Block]

Top 10 Holdings

SAP SE	1.7%
ASML Holding NV	1.6%
Nestle SA	1.4%
Novartis AG	1.2%
Roche Holding AG	1.2%
Novo Nordisk A/S - Class B	1.2%
AstraZeneca PLC	1.1%
HSBC Holdings PLC	1.1%
Shell PLC	1.1%
Commonwealth Bank of Australia	1.1%

Shareholder Report [Line Items]

Voya International Index Portfolio

Class S2

ISIIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya International Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$46	0.85%

Expenses Paid, Amount

$ 46

Expense Ratio, Percent

0.85%

$ 1,212,633,438

Holdings Count | Holding

733

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,212,633,438
# of Portfolio Holdings733
Portfolio Turnover Rate2%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	1.4%
Countries-Other	11.3%
Sweden	3.0%
Spain	3.1%
Italy	3.1%
Netherlands	4.2%
Switzerland	4.9%
Australia	6.8%
France	9.3%
United States	10.1%
Germany	10.2%
United Kingdom	11.2%
Japan	21.4%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	23.5%
Industrials	18.8%
Health Care	11.1%
Consumer Discretionary	9.6%
Information Technology	8.3%
Consumer Staples	7.9%
Materials	5.5%
Communication Services	5.4%
Utilities	3.5%
Energy	3.1%
Real Estate	1.9%
Short-Term Investments	6.7%
Liabilities in Excess of Other Assets	(5.3)%

Largest Holdings [Text Block]

Top 10 Holdings

SAP SE	1.7%
ASML Holding NV	1.6%
Nestle SA	1.4%
Novartis AG	1.2%
Roche Holding AG	1.2%
Novo Nordisk A/S - Class B	1.2%
AstraZeneca PLC	1.1%
HSBC Holdings PLC	1.1%
Shell PLC	1.1%
Commonwealth Bank of Australia	1.1%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Growth Index Portfolio

Class ADV

IRLAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$47	0.93%

Expenses Paid, Amount

$ 47

Expense Ratio, Percent

0.93%

$ 1,500,389,883

Holdings Count | Holding

111

InvestmentCompanyPortfolioTurnover

37.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,500,389,883
# of Portfolio Holdings111
Portfolio Turnover Rate37%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.2)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.4%
Common Stock	98.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	50.9%
Consumer Discretionary	12.7%
Communication Services	12.0%
Health Care	7.0%
Financials	6.8%
Industrials	4.9%
Consumer Staples	3.1%
Exchange-Traded Funds	1.4%
Real Estate	0.5%
Materials	0.4%
Energy	0.0%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.2)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	12.1%
Microsoft Corp.	12.1%
Apple, Inc.	10.0%
Amazon.com, Inc.	5.4%
Meta Platforms, Inc. - Class A	4.8%
Broadcom, Inc.	4.6%
Tesla, Inc.	3.4%
Eli Lilly & Co.	2.6%
Visa, Inc. - Class A	2.6%
Netflix, Inc.	2.4%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Growth Index Portfolio

Class I

IRLNX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$22	0.43%

Expenses Paid, Amount

$ 22

Expense Ratio, Percent

0.43%

$ 1,500,389,883

Holdings Count | Holding

111

InvestmentCompanyPortfolioTurnover

37.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,500,389,883
# of Portfolio Holdings111
Portfolio Turnover Rate37%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.2)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.4%
Common Stock	98.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	50.9%
Consumer Discretionary	12.7%
Communication Services	12.0%
Health Care	7.0%
Financials	6.8%
Industrials	4.9%
Consumer Staples	3.1%
Exchange-Traded Funds	1.4%
Real Estate	0.5%
Materials	0.4%
Energy	0.0%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.2)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	12.1%
Microsoft Corp.	12.1%
Apple, Inc.	10.0%
Amazon.com, Inc.	5.4%
Meta Platforms, Inc. - Class A	4.8%
Broadcom, Inc.	4.6%
Tesla, Inc.	3.4%
Eli Lilly & Co.	2.6%
Visa, Inc. - Class A	2.6%
Netflix, Inc.	2.4%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Growth Index Portfolio

Class S

IRLSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$35	0.68%

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.68%

$ 1,500,389,883

Holdings Count | Holding

111

InvestmentCompanyPortfolioTurnover

37.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,500,389,883
# of Portfolio Holdings111
Portfolio Turnover Rate37%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.2)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.4%
Common Stock	98.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	50.9%
Consumer Discretionary	12.7%
Communication Services	12.0%
Health Care	7.0%
Financials	6.8%
Industrials	4.9%
Consumer Staples	3.1%
Exchange-Traded Funds	1.4%
Real Estate	0.5%
Materials	0.4%
Energy	0.0%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.2)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	12.1%
Microsoft Corp.	12.1%
Apple, Inc.	10.0%
Amazon.com, Inc.	5.4%
Meta Platforms, Inc. - Class A	4.8%
Broadcom, Inc.	4.6%
Tesla, Inc.	3.4%
Eli Lilly & Co.	2.6%
Visa, Inc. - Class A	2.6%
Netflix, Inc.	2.4%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Index Portfolio

Class ADV

IRLIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$44	0.86%

Expenses Paid, Amount

$ 44

Expense Ratio, Percent

0.86%

$ 927,062,539

Holdings Count | Holding

200

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$927,062,539
# of Portfolio Holdings200
Portfolio Turnover Rate7%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.1)%
Short-Term Investments	0.4%
Exchange-Traded Funds	1.2%
Common Stock	98.5%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	36.2%
Financials	14.0%
Communication Services	10.9%
Consumer Discretionary	10.2%
Health Care	9.1%
Industrials	7.0%
Consumer Staples	5.3%
Energy	2.2%
Materials	1.4%
Utilities	1.3%
Exchange-Traded Funds	1.2%
Real Estate	0.9%
Short-Term Investments	0.4%
Liabilities in Excess of Other Assets	(0.1)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	8.1%
Microsoft Corp.	8.0%
Apple, Inc.	6.6%
Amazon.com, Inc.	4.6%
Meta Platforms, Inc. - Class A	3.5%
Broadcom, Inc.	2.8%
Alphabet, Inc. - Class A	2.2%
Berkshire Hathaway, Inc. - Class B	2.0%
Tesla, Inc.	1.9%
Alphabet, Inc. - Class C	1.8%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Index Portfolio

Class I

IIRLX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$18	0.36%

Expenses Paid, Amount

$ 18

Expense Ratio, Percent

0.36%

$ 927,062,539

Holdings Count | Holding

200

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$927,062,539
# of Portfolio Holdings200
Portfolio Turnover Rate7%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.1)%
Short-Term Investments	0.4%
Exchange-Traded Funds	1.2%
Common Stock	98.5%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	36.2%
Financials	14.0%
Communication Services	10.9%
Consumer Discretionary	10.2%
Health Care	9.1%
Industrials	7.0%
Consumer Staples	5.3%
Energy	2.2%
Materials	1.4%
Utilities	1.3%
Exchange-Traded Funds	1.2%
Real Estate	0.9%
Short-Term Investments	0.4%
Liabilities in Excess of Other Assets	(0.1)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	8.1%
Microsoft Corp.	8.0%
Apple, Inc.	6.6%
Amazon.com, Inc.	4.6%
Meta Platforms, Inc. - Class A	3.5%
Broadcom, Inc.	2.8%
Alphabet, Inc. - Class A	2.2%
Berkshire Hathaway, Inc. - Class B	2.0%
Tesla, Inc.	1.9%
Alphabet, Inc. - Class C	1.8%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Index Portfolio

Class S

IRLCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$31	0.61%

Expenses Paid, Amount

$ 31

Expense Ratio, Percent

0.61%

$ 927,062,539

Holdings Count | Holding

200

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$927,062,539
# of Portfolio Holdings200
Portfolio Turnover Rate7%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.1)%
Short-Term Investments	0.4%
Exchange-Traded Funds	1.2%
Common Stock	98.5%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	36.2%
Financials	14.0%
Communication Services	10.9%
Consumer Discretionary	10.2%
Health Care	9.1%
Industrials	7.0%
Consumer Staples	5.3%
Energy	2.2%
Materials	1.4%
Utilities	1.3%
Exchange-Traded Funds	1.2%
Real Estate	0.9%
Short-Term Investments	0.4%
Liabilities in Excess of Other Assets	(0.1)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	8.1%
Microsoft Corp.	8.0%
Apple, Inc.	6.6%
Amazon.com, Inc.	4.6%
Meta Platforms, Inc. - Class A	3.5%
Broadcom, Inc.	2.8%
Alphabet, Inc. - Class A	2.2%
Berkshire Hathaway, Inc. - Class B	2.0%
Tesla, Inc.	1.9%
Alphabet, Inc. - Class C	1.8%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Index Portfolio

Class S2

IRLUX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$39	0.76%

Expenses Paid, Amount

$ 39

Expense Ratio, Percent

0.76%

$ 927,062,539

Holdings Count | Holding

200

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$927,062,539
# of Portfolio Holdings200
Portfolio Turnover Rate7%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.1)%
Short-Term Investments	0.4%
Exchange-Traded Funds	1.2%
Common Stock	98.5%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Information Technology	36.2%
Financials	14.0%
Communication Services	10.9%
Consumer Discretionary	10.2%
Health Care	9.1%
Industrials	7.0%
Consumer Staples	5.3%
Energy	2.2%
Materials	1.4%
Utilities	1.3%
Exchange-Traded Funds	1.2%
Real Estate	0.9%
Short-Term Investments	0.4%
Liabilities in Excess of Other Assets	(0.1)%

Largest Holdings [Text Block]

Top 10 Holdings

NVIDIA Corp.	8.1%
Microsoft Corp.	8.0%
Apple, Inc.	6.6%
Amazon.com, Inc.	4.6%
Meta Platforms, Inc. - Class A	3.5%
Broadcom, Inc.	2.8%
Alphabet, Inc. - Class A	2.2%
Berkshire Hathaway, Inc. - Class B	2.0%
Tesla, Inc.	1.9%
Alphabet, Inc. - Class C	1.8%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Value Index Portfolio

Class ADV

IRVAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Value Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$48	0.93%

Expenses Paid, Amount

$ 48

Expense Ratio, Percent

0.93%

$ 273,477,386

Holdings Count | Holding

154

InvestmentCompanyPortfolioTurnover

25.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$273,477,386
# of Portfolio Holdings154
Portfolio Turnover Rate25%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.4%
Short-Term Investments	0.1%
Exchange-Traded Funds	0.9%
Common Stock	98.6%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.1%
Health Care	13.4%
Information Technology	10.9%
Industrials	10.9%
Communication Services	9.5%
Consumer Staples	8.8%
Consumer Discretionary	7.2%
Energy	5.2%
Utilities	3.1%
Materials	2.8%
Real Estate	1.7%
Exchange-Traded Funds	0.9%
Short-Term Investments	0.1%
Assets in Excess of Other Liabilities	0.4%

Largest Holdings [Text Block]

Top 10 Holdings

Berkshire Hathaway, Inc. - Class B	4.7%
JPMorgan Chase & Co.	4.2%
Amazon.com, Inc.	3.0%
Exxon Mobil Corp.	2.5%
Walmart, Inc.	2.0%
Procter & Gamble Co.	2.0%
Johnson & Johnson	1.9%
Alphabet, Inc. - Class A	1.9%
Bank of America Corp.	1.6%
Alphabet, Inc. - Class C	1.6%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Value Index Portfolio

Class I

IRVIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Value Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$22	0.43%

Expenses Paid, Amount

$ 22

Expense Ratio, Percent

0.43%

$ 273,477,386

Holdings Count | Holding

154

InvestmentCompanyPortfolioTurnover

25.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$273,477,386
# of Portfolio Holdings154
Portfolio Turnover Rate25%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.4%
Short-Term Investments	0.1%
Exchange-Traded Funds	0.9%
Common Stock	98.6%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.1%
Health Care	13.4%
Information Technology	10.9%
Industrials	10.9%
Communication Services	9.5%
Consumer Staples	8.8%
Consumer Discretionary	7.2%
Energy	5.2%
Utilities	3.1%
Materials	2.8%
Real Estate	1.7%
Exchange-Traded Funds	0.9%
Short-Term Investments	0.1%
Assets in Excess of Other Liabilities	0.4%

Largest Holdings [Text Block]

Top 10 Holdings

Berkshire Hathaway, Inc. - Class B	4.7%
JPMorgan Chase & Co.	4.2%
Amazon.com, Inc.	3.0%
Exxon Mobil Corp.	2.5%
Walmart, Inc.	2.0%
Procter & Gamble Co.	2.0%
Johnson & Johnson	1.9%
Alphabet, Inc. - Class A	1.9%
Bank of America Corp.	1.6%
Alphabet, Inc. - Class C	1.6%

Shareholder Report [Line Items]

Voya Russell™ Large Cap Value Index Portfolio

Class S

IRVSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Large Cap Value Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$35	0.68%

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.68%

$ 273,477,386

Holdings Count | Holding

154

InvestmentCompanyPortfolioTurnover

25.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$273,477,386
# of Portfolio Holdings154
Portfolio Turnover Rate25%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.4%
Short-Term Investments	0.1%
Exchange-Traded Funds	0.9%
Common Stock	98.6%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	25.1%
Health Care	13.4%
Information Technology	10.9%
Industrials	10.9%
Communication Services	9.5%
Consumer Staples	8.8%
Consumer Discretionary	7.2%
Energy	5.2%
Utilities	3.1%
Materials	2.8%
Real Estate	1.7%
Exchange-Traded Funds	0.9%
Short-Term Investments	0.1%
Assets in Excess of Other Liabilities	0.4%

Largest Holdings [Text Block]

Top 10 Holdings

Berkshire Hathaway, Inc. - Class B	4.7%
JPMorgan Chase & Co.	4.2%
Amazon.com, Inc.	3.0%
Exxon Mobil Corp.	2.5%
Walmart, Inc.	2.0%
Procter & Gamble Co.	2.0%
Johnson & Johnson	1.9%
Alphabet, Inc. - Class A	1.9%
Bank of America Corp.	1.6%
Alphabet, Inc. - Class C	1.6%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Growth Index Portfolio

Class I

IRGJX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$21	0.40%

Expenses Paid, Amount

$ 21

Expense Ratio, Percent

0.40%

$ 979,397,244

Holdings Count | Holding

284

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$979,397,244
# of Portfolio Holdings284
Portfolio Turnover Rate40%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.1%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Consumer Discretionary	21.8%
Industrials	19.9%
Information Technology	17.8%
Health Care	13.7%
Financials	10.5%
Communication Services	6.1%
Utilities	3.2%
Energy	2.8%
Consumer Staples	1.8%
Real Estate	1.3%
Exchange-Traded Funds	1.1%
Materials	0.2%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	2.6%
Howmet Aerospace, Inc.	2.5%
Vistra Corp.	2.2%
Hilton Worldwide Holdings, Inc.	2.0%
Axon Enterprise, Inc.	2.0%
Cloudflare, Inc. - Class A	2.0%
ROBLOX Corp. - Class A	2.0%
AmerisourceBergen Corp.	1.8%
Vertiv Holdings Co. - Class A	1.6%
Ameriprise Financial, Inc.	1.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Growth Index Portfolio

Class S

IRGUX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$34	0.65%

Expenses Paid, Amount

$ 34

Expense Ratio, Percent

0.65%

$ 979,397,244

Holdings Count | Holding

284

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$979,397,244
# of Portfolio Holdings284
Portfolio Turnover Rate40%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.1%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Consumer Discretionary	21.8%
Industrials	19.9%
Information Technology	17.8%
Health Care	13.7%
Financials	10.5%
Communication Services	6.1%
Utilities	3.2%
Energy	2.8%
Consumer Staples	1.8%
Real Estate	1.3%
Exchange-Traded Funds	1.1%
Materials	0.2%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	2.6%
Howmet Aerospace, Inc.	2.5%
Vistra Corp.	2.2%
Hilton Worldwide Holdings, Inc.	2.0%
Axon Enterprise, Inc.	2.0%
Cloudflare, Inc. - Class A	2.0%
ROBLOX Corp. - Class A	2.0%
AmerisourceBergen Corp.	1.8%
Vertiv Holdings Co. - Class A	1.6%
Ameriprise Financial, Inc.	1.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Growth Index Portfolio

Class S2

IRGVX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Growth Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$42	0.80%

Expenses Paid, Amount

$ 42

Expense Ratio, Percent

0.80%

$ 979,397,244

Holdings Count | Holding

284

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$979,397,244
# of Portfolio Holdings284
Portfolio Turnover Rate40%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	0.5%
Exchange-Traded Funds	1.1%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Consumer Discretionary	21.8%
Industrials	19.9%
Information Technology	17.8%
Health Care	13.7%
Financials	10.5%
Communication Services	6.1%
Utilities	3.2%
Energy	2.8%
Consumer Staples	1.8%
Real Estate	1.3%
Exchange-Traded Funds	1.1%
Materials	0.2%
Short-Term Investments	0.5%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	2.6%
Howmet Aerospace, Inc.	2.5%
Vistra Corp.	2.2%
Hilton Worldwide Holdings, Inc.	2.0%
Axon Enterprise, Inc.	2.0%
Cloudflare, Inc. - Class A	2.0%
ROBLOX Corp. - Class A	2.0%
AmerisourceBergen Corp.	1.8%
Vertiv Holdings Co. - Class A	1.6%
Ameriprise Financial, Inc.	1.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Index Portfolio

Class ADV

IRMAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$46	0.90%

Expenses Paid, Amount

$ 46

Expense Ratio, Percent

0.90%

$ 994,103,784

Holdings Count | Holding

829

InvestmentCompanyPortfolioTurnover

19.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$994,103,784
# of Portfolio Holdings829
Portfolio Turnover Rate19%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	1.0%
Exchange-Traded Funds	0.5%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	17.8%
Financials	15.3%
Information Technology	11.6%
Consumer Discretionary	11.6%
Health Care	9.2%
Real Estate	7.3%
Utilities	6.0%
Energy	5.9%
Consumer Staples	5.3%
Materials	5.1%
Communication Services	4.1%
Exchange-Traded Funds	0.5%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	0.7%
Howmet Aerospace, Inc.	0.6%
Coinbase Global, Inc. - Class A	0.6%
Robinhood Markets, Inc. - Class A	0.6%
Vistra Corp.	0.5%
Bank of New York Mellon Corp.	0.5%
Hilton Worldwide Holdings, Inc.	0.5%
Axon Enterprise, Inc.	0.5%
Cloudflare, Inc. - Class A	0.5%
ROBLOX Corp. - Class A	0.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Index Portfolio

Class I

IIRMX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$20	0.40%

Expenses Paid, Amount

$ 20

Expense Ratio, Percent

0.40%

$ 994,103,784

Holdings Count | Holding

829

InvestmentCompanyPortfolioTurnover

19.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$994,103,784
# of Portfolio Holdings829
Portfolio Turnover Rate19%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	1.0%
Exchange-Traded Funds	0.5%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	17.8%
Financials	15.3%
Information Technology	11.6%
Consumer Discretionary	11.6%
Health Care	9.2%
Real Estate	7.3%
Utilities	6.0%
Energy	5.9%
Consumer Staples	5.3%
Materials	5.1%
Communication Services	4.1%
Exchange-Traded Funds	0.5%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	0.7%
Howmet Aerospace, Inc.	0.6%
Coinbase Global, Inc. - Class A	0.6%
Robinhood Markets, Inc. - Class A	0.6%
Vistra Corp.	0.5%
Bank of New York Mellon Corp.	0.5%
Hilton Worldwide Holdings, Inc.	0.5%
Axon Enterprise, Inc.	0.5%
Cloudflare, Inc. - Class A	0.5%
ROBLOX Corp. - Class A	0.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Index Portfolio

Class S

IRMCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$33	0.65%

Expenses Paid, Amount

$ 33

Expense Ratio, Percent

0.65%

$ 994,103,784

Holdings Count | Holding

829

InvestmentCompanyPortfolioTurnover

19.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$994,103,784
# of Portfolio Holdings829
Portfolio Turnover Rate19%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	1.0%
Exchange-Traded Funds	0.5%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	17.8%
Financials	15.3%
Information Technology	11.6%
Consumer Discretionary	11.6%
Health Care	9.2%
Real Estate	7.3%
Utilities	6.0%
Energy	5.9%
Consumer Staples	5.3%
Materials	5.1%
Communication Services	4.1%
Exchange-Traded Funds	0.5%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	0.7%
Howmet Aerospace, Inc.	0.6%
Coinbase Global, Inc. - Class A	0.6%
Robinhood Markets, Inc. - Class A	0.6%
Vistra Corp.	0.5%
Bank of New York Mellon Corp.	0.5%
Hilton Worldwide Holdings, Inc.	0.5%
Axon Enterprise, Inc.	0.5%
Cloudflare, Inc. - Class A	0.5%
ROBLOX Corp. - Class A	0.5%

Shareholder Report [Line Items]

Voya Russell™ Mid Cap Index Portfolio

Class S2

IRMTX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Mid Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$41	0.80%

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.80%

$ 994,103,784

Holdings Count | Holding

829

InvestmentCompanyPortfolioTurnover

19.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$994,103,784
# of Portfolio Holdings829
Portfolio Turnover Rate19%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.7)%
Short-Term Investments	1.0%
Exchange-Traded Funds	0.5%
Common Stock	99.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	17.8%
Financials	15.3%
Information Technology	11.6%
Consumer Discretionary	11.6%
Health Care	9.2%
Real Estate	7.3%
Utilities	6.0%
Energy	5.9%
Consumer Staples	5.3%
Materials	5.1%
Communication Services	4.1%
Exchange-Traded Funds	0.5%
Short-Term Investments	1.0%
Liabilities in Excess of Other Assets	(0.7)%

Largest Holdings [Text Block]

Top 10 Holdings

Royal Caribbean Cruises Ltd.	0.7%
Howmet Aerospace, Inc.	0.6%
Coinbase Global, Inc. - Class A	0.6%
Robinhood Markets, Inc. - Class A	0.6%
Vistra Corp.	0.5%
Bank of New York Mellon Corp.	0.5%
Hilton Worldwide Holdings, Inc.	0.5%
Axon Enterprise, Inc.	0.5%
Cloudflare, Inc. - Class A	0.5%
ROBLOX Corp. - Class A	0.5%

Shareholder Report [Line Items]

Voya Russell™ Small Cap Index Portfolio

Class ADV

IRSIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Small Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$46	0.93%

Expenses Paid, Amount

$ 46

Expense Ratio, Percent

0.93%

$ 525,128,268

Holdings Count | Holding

1,790

InvestmentCompanyPortfolioTurnover

8.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$525,128,268
# of Portfolio Holdings1,790
Portfolio Turnover Rate8%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(18.4)%
Short-Term Investments	19.3%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.1%
Industrials	16.9%
Health Care	15.8%
Information Technology	14.6%
Consumer Discretionary	9.9%
Real Estate	6.0%
Energy	4.9%
Materials	3.8%
Utilities	3.2%
Communication Services	2.6%
Consumer Staples	2.3%
Short-Term Investments	19.3%
Liabilities in Excess of Other Assets	(18.4)%

Largest Holdings [Text Block]

Top 10 Holdings

Credo Technology Group Holding Ltd.	0.5%
Fabrinet	0.4%
IonQ, Inc.	0.4%
Hims & Hers Health, Inc.	0.4%
HealthEquity, Inc.	0.4%
Ensign Group, Inc.	0.3%
Fluor Corp.	0.3%
Blueprint Medicines Corp.	0.3%
AeroVironment, Inc.	0.3%
Brinker International, Inc.	0.3%

Shareholder Report [Line Items]

Voya Russell™ Small Cap Index Portfolio

Class I

IIRSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Small Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$21	0.43%

Expenses Paid, Amount

$ 21

Expense Ratio, Percent

0.43%

$ 525,128,268

Holdings Count | Holding

1,790

InvestmentCompanyPortfolioTurnover

8.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$525,128,268
# of Portfolio Holdings1,790
Portfolio Turnover Rate8%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(18.4)%
Short-Term Investments	19.3%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.1%
Industrials	16.9%
Health Care	15.8%
Information Technology	14.6%
Consumer Discretionary	9.9%
Real Estate	6.0%
Energy	4.9%
Materials	3.8%
Utilities	3.2%
Communication Services	2.6%
Consumer Staples	2.3%
Short-Term Investments	19.3%
Liabilities in Excess of Other Assets	(18.4)%

Largest Holdings [Text Block]

Top 10 Holdings

Credo Technology Group Holding Ltd.	0.5%
Fabrinet	0.4%
IonQ, Inc.	0.4%
Hims & Hers Health, Inc.	0.4%
HealthEquity, Inc.	0.4%
Ensign Group, Inc.	0.3%
Fluor Corp.	0.3%
Blueprint Medicines Corp.	0.3%
AeroVironment, Inc.	0.3%
Brinker International, Inc.	0.3%

Shareholder Report [Line Items]

Voya Russell™ Small Cap Index Portfolio

Class S

IRSSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Small Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$33	0.68%

Expenses Paid, Amount

$ 33

Expense Ratio, Percent

0.68%

$ 525,128,268

Holdings Count | Holding

1,790

InvestmentCompanyPortfolioTurnover

8.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$525,128,268
# of Portfolio Holdings1,790
Portfolio Turnover Rate8%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(18.4)%
Short-Term Investments	19.3%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.1%
Industrials	16.9%
Health Care	15.8%
Information Technology	14.6%
Consumer Discretionary	9.9%
Real Estate	6.0%
Energy	4.9%
Materials	3.8%
Utilities	3.2%
Communication Services	2.6%
Consumer Staples	2.3%
Short-Term Investments	19.3%
Liabilities in Excess of Other Assets	(18.4)%

Largest Holdings [Text Block]

Top 10 Holdings

Credo Technology Group Holding Ltd.	0.5%
Fabrinet	0.4%
IonQ, Inc.	0.4%
Hims & Hers Health, Inc.	0.4%
HealthEquity, Inc.	0.4%
Ensign Group, Inc.	0.3%
Fluor Corp.	0.3%
Blueprint Medicines Corp.	0.3%
AeroVironment, Inc.	0.3%
Brinker International, Inc.	0.3%

Shareholder Report [Line Items]

Voya Russell™ Small Cap Index Portfolio

Class S2

IRCIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Russell™ Small Cap Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$41	0.83%

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.83%

$ 525,128,268

Holdings Count | Holding

1,790

InvestmentCompanyPortfolioTurnover

8.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$525,128,268
# of Portfolio Holdings1,790
Portfolio Turnover Rate8%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(18.4)%
Short-Term Investments	19.3%
Common Stock	99.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.1%
Industrials	16.9%
Health Care	15.8%
Information Technology	14.6%
Consumer Discretionary	9.9%
Real Estate	6.0%
Energy	4.9%
Materials	3.8%
Utilities	3.2%
Communication Services	2.6%
Consumer Staples	2.3%
Short-Term Investments	19.3%
Liabilities in Excess of Other Assets	(18.4)%

Largest Holdings [Text Block]

Top 10 Holdings

Credo Technology Group Holding Ltd.	0.5%
Fabrinet	0.4%
IonQ, Inc.	0.4%
Hims & Hers Health, Inc.	0.4%
HealthEquity, Inc.	0.4%
Ensign Group, Inc.	0.3%
Fluor Corp.	0.3%
Blueprint Medicines Corp.	0.3%
AeroVironment, Inc.	0.3%
Brinker International, Inc.	0.3%

Shareholder Report [Line Items]

Voya Small Company Portfolio

Class ADV

IASCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Small Company Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$67	1.36%

Expenses Paid, Amount

$ 67

Expense Ratio, Percent

1.36%

$ 234,427,853

Holdings Count | Holding

191

InvestmentCompanyPortfolioTurnover

65.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$234,427,853
# of Portfolio Holdings191
Portfolio Turnover Rate65%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(3.7)%
Short-Term Investments	4.1%
Exchange-Traded Funds	1.5%
Common Stock	98.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.6%
Information Technology	17.6%
Industrials	17.4%
Health Care	16.1%
Real Estate	6.0%
Consumer Discretionary	4.8%
Energy	4.3%
Materials	3.8%
Communication Services	3.3%
Utilities	3.1%
Consumer Staples	2.1%
Exchange-Traded Funds	1.5%
Short-Term Investments	4.1%
Liabilities in Excess of Other Assets	(3.7)%

Largest Holdings [Text Block]

Top 10 Holdings

First BanCorp/Puerto Rico	1.7%
iShares Russell 2000 ETF	1.5%
Box, Inc. - Class A	1.5%
QIAGEN N.V.	1.4%
AvePoint, Inc.	1.4%
Hancock Whitney Corp.	1.3%
Flowserve Corp.	1.3%
nVent Electric PLC	1.2%
Sprouts Farmers Market, Inc.	1.2%
Element Solutions, Inc.	1.2%

Shareholder Report [Line Items]

Voya Small Company Portfolio

Class I

IVCSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Small Company Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$42	0.86%

Expenses Paid, Amount

$ 42

Expense Ratio, Percent

0.86%

$ 234,427,853

Holdings Count | Holding

191

InvestmentCompanyPortfolioTurnover

65.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$234,427,853
# of Portfolio Holdings191
Portfolio Turnover Rate65%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(3.7)%
Short-Term Investments	4.1%
Exchange-Traded Funds	1.5%
Common Stock	98.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.6%
Information Technology	17.6%
Industrials	17.4%
Health Care	16.1%
Real Estate	6.0%
Consumer Discretionary	4.8%
Energy	4.3%
Materials	3.8%
Communication Services	3.3%
Utilities	3.1%
Consumer Staples	2.1%
Exchange-Traded Funds	1.5%
Short-Term Investments	4.1%
Liabilities in Excess of Other Assets	(3.7)%

Largest Holdings [Text Block]

Top 10 Holdings

First BanCorp/Puerto Rico	1.7%
iShares Russell 2000 ETF	1.5%
Box, Inc. - Class A	1.5%
QIAGEN N.V.	1.4%
AvePoint, Inc.	1.4%
Hancock Whitney Corp.	1.3%
Flowserve Corp.	1.3%
nVent Electric PLC	1.2%
Sprouts Farmers Market, Inc.	1.2%
Element Solutions, Inc.	1.2%

Shareholder Report [Line Items]

Voya Small Company Portfolio

Class R6

VSPRX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Small Company Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class R6	$39	0.80%

Expenses Paid, Amount

$ 39

Expense Ratio, Percent

0.80%

$ 234,427,853

Holdings Count | Holding

191

InvestmentCompanyPortfolioTurnover

65.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$234,427,853
# of Portfolio Holdings191
Portfolio Turnover Rate65%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(3.7)%
Short-Term Investments	4.1%
Exchange-Traded Funds	1.5%
Common Stock	98.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.6%
Information Technology	17.6%
Industrials	17.4%
Health Care	16.1%
Real Estate	6.0%
Consumer Discretionary	4.8%
Energy	4.3%
Materials	3.8%
Communication Services	3.3%
Utilities	3.1%
Consumer Staples	2.1%
Exchange-Traded Funds	1.5%
Short-Term Investments	4.1%
Liabilities in Excess of Other Assets	(3.7)%

Largest Holdings [Text Block]

Top 10 Holdings

First BanCorp/Puerto Rico	1.7%
iShares Russell 2000 ETF	1.5%
Box, Inc. - Class A	1.5%
QIAGEN N.V.	1.4%
AvePoint, Inc.	1.4%
Hancock Whitney Corp.	1.3%
Flowserve Corp.	1.3%
nVent Electric PLC	1.2%
Sprouts Farmers Market, Inc.	1.2%
Element Solutions, Inc.	1.2%

Shareholder Report [Line Items]

Voya Small Company Portfolio

Class S

IVPSX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya Small Company Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$54	1.11%

Expenses Paid, Amount

$ 54

Expense Ratio, Percent

1.11%

$ 234,427,853

Holdings Count | Holding

191

InvestmentCompanyPortfolioTurnover

65.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$234,427,853
# of Portfolio Holdings191
Portfolio Turnover Rate65%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(3.7)%
Short-Term Investments	4.1%
Exchange-Traded Funds	1.5%
Common Stock	98.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	19.6%
Information Technology	17.6%
Industrials	17.4%
Health Care	16.1%
Real Estate	6.0%
Consumer Discretionary	4.8%
Energy	4.3%
Materials	3.8%
Communication Services	3.3%
Utilities	3.1%
Consumer Staples	2.1%
Exchange-Traded Funds	1.5%
Short-Term Investments	4.1%
Liabilities in Excess of Other Assets	(3.7)%

Largest Holdings [Text Block]

Top 10 Holdings

First BanCorp/Puerto Rico	1.7%
iShares Russell 2000 ETF	1.5%
Box, Inc. - Class A	1.5%
QIAGEN N.V.	1.4%
AvePoint, Inc.	1.4%
Hancock Whitney Corp.	1.3%
Flowserve Corp.	1.3%
nVent Electric PLC	1.2%
Sprouts Farmers Market, Inc.	1.2%
Element Solutions, Inc.	1.2%

Shareholder Report [Line Items]

Voya U.S. Bond Index Portfolio

Class ADV

ILUAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya U.S. Bond Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class ADV	$43	0.86%

Expenses Paid, Amount

$ 43

Expense Ratio, Percent

0.86%

$ 1,390,112,294

Holdings Count | Holding

4,673

InvestmentCompanyPortfolioTurnover

205.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,390,112,294
# of Portfolio Holdings4,673
Portfolio Turnover Rate205%

Holdings [Text Block]

Investment Type Allocation

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	4.7%
Municipal Bonds	0.5%
Asset-Backed Securities	0.8%
Commercial Mortgage-Backed Securities	1.5%
Sovereign Bonds	2.8%
Corporate Bonds/Notes	25.7%
U.S. Government Agency Obligations	25.8%
U.S. Treasury Obligations	38.2%

Largest Holdings [Text Block]

Top 10 Holdings

United States Treasury Notes, 4.000%, 06/30/32	10.6%
United States Treasury Notes, 3.875%, 06/15/28	7.1%
United States Treasury Notes, 3.750%, 06/30/27	4.7%
United States Treasury Notes, 3.875%, 06/30/30	3.8%
United States Treasury Notes, 4.250%, 05/15/35	3.6%
United States Treasury Notes, 3.750%, 05/15/28	2.9%
Uniform Mortgage-Backed Securities, 2.000%, 02/01/52	1.6%
United States Treasury Notes, 4.125%, 06/15/26	1.1%
United States Treasury Bonds, 5.000%, 05/15/45	1.1%
Uniform Mortgage-Backed Securities, 2.000%, 12/01/36	0.9%

Shareholder Report [Line Items]

Voya U.S. Bond Index Portfolio

Class I

ILBAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya U.S. Bond Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class I	$18	0.36%

Expenses Paid, Amount

$ 18

Expense Ratio, Percent

0.36%

$ 1,390,112,294

Holdings Count | Holding

4,673

InvestmentCompanyPortfolioTurnover

205.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,390,112,294
# of Portfolio Holdings4,673
Portfolio Turnover Rate205%

Holdings [Text Block]

Investment Type Allocation

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	4.7%
Municipal Bonds	0.5%
Asset-Backed Securities	0.8%
Commercial Mortgage-Backed Securities	1.5%
Sovereign Bonds	2.8%
Corporate Bonds/Notes	25.7%
U.S. Government Agency Obligations	25.8%
U.S. Treasury Obligations	38.2%

Largest Holdings [Text Block]

Top 10 Holdings

United States Treasury Notes, 4.000%, 06/30/32	10.6%
United States Treasury Notes, 3.875%, 06/15/28	7.1%
United States Treasury Notes, 3.750%, 06/30/27	4.7%
United States Treasury Notes, 3.875%, 06/30/30	3.8%
United States Treasury Notes, 4.250%, 05/15/35	3.6%
United States Treasury Notes, 3.750%, 05/15/28	2.9%
Uniform Mortgage-Backed Securities, 2.000%, 02/01/52	1.6%
United States Treasury Notes, 4.125%, 06/15/26	1.1%
United States Treasury Bonds, 5.000%, 05/15/45	1.1%
Uniform Mortgage-Backed Securities, 2.000%, 12/01/36	0.9%

Shareholder Report [Line Items]

Voya U.S. Bond Index Portfolio

Class S

ILABX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya U.S. Bond Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S	$31	0.61%

Expenses Paid, Amount

$ 31

Expense Ratio, Percent

0.61%

$ 1,390,112,294

Holdings Count | Holding

4,673

InvestmentCompanyPortfolioTurnover

205.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,390,112,294
# of Portfolio Holdings4,673
Portfolio Turnover Rate205%

Holdings [Text Block]

Investment Type Allocation

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	4.7%
Municipal Bonds	0.5%
Asset-Backed Securities	0.8%
Commercial Mortgage-Backed Securities	1.5%
Sovereign Bonds	2.8%
Corporate Bonds/Notes	25.7%
U.S. Government Agency Obligations	25.8%
U.S. Treasury Obligations	38.2%

Largest Holdings [Text Block]

Top 10 Holdings

United States Treasury Notes, 4.000%, 06/30/32	10.6%
United States Treasury Notes, 3.875%, 06/15/28	7.1%
United States Treasury Notes, 3.750%, 06/30/27	4.7%
United States Treasury Notes, 3.875%, 06/30/30	3.8%
United States Treasury Notes, 4.250%, 05/15/35	3.6%
United States Treasury Notes, 3.750%, 05/15/28	2.9%
Uniform Mortgage-Backed Securities, 2.000%, 02/01/52	1.6%
United States Treasury Notes, 4.125%, 06/15/26	1.1%
United States Treasury Bonds, 5.000%, 05/15/45	1.1%
Uniform Mortgage-Backed Securities, 2.000%, 12/01/36	0.9%

Shareholder Report [Line Items]

Voya U.S. Bond Index Portfolio

Class S2

IUSBX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya U.S. Bond Index Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
Class S2	$38	0.76%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.76%

$ 1,390,112,294

Holdings Count | Holding

4,673

InvestmentCompanyPortfolioTurnover

205.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,390,112,294
# of Portfolio Holdings4,673
Portfolio Turnover Rate205%

Holdings [Text Block]

Investment Type Allocation

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	4.7%
Municipal Bonds	0.5%
Asset-Backed Securities	0.8%
Commercial Mortgage-Backed Securities	1.5%
Sovereign Bonds	2.8%
Corporate Bonds/Notes	25.7%
U.S. Government Agency Obligations	25.8%
U.S. Treasury Obligations	38.2%

Largest Holdings [Text Block]

Top 10 Holdings

United States Treasury Notes, 4.000%, 06/30/32	10.6%
United States Treasury Notes, 3.875%, 06/15/28	7.1%
United States Treasury Notes, 3.750%, 06/30/27	4.7%
United States Treasury Notes, 3.875%, 06/30/30	3.8%
United States Treasury Notes, 4.250%, 05/15/35	3.6%
United States Treasury Notes, 3.750%, 05/15/28	2.9%
Uniform Mortgage-Backed Securities, 2.000%, 02/01/52	1.6%
United States Treasury Notes, 4.125%, 06/15/26	1.1%
United States Treasury Bonds, 5.000%, 05/15/45	1.1%
Uniform Mortgage-Backed Securities, 2.000%, 12/01/36	0.9%

Shareholder Report [Line Items]

Voya VACS Index Series EM Portfolio

Portfolio

VVIEX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya VACS Index Series EM Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
VACS Index Series	$9	0.16%

Expenses Paid, Amount

$ 9

Expense Ratio, Percent

0.16%

$ 475,258,641

Holdings Count | Holding

964

InvestmentCompanyPortfolioTurnover

2.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$475,258,641
# of Portfolio Holdings964
Portfolio Turnover Rate2%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	0.7%
Countries-Other	7.0%
Indonesia	1.2%
Malaysia	1.3%
United Arab Emirates	1.6%
Mexico	2.1%
South Africa	2.8%
Saudi Arabia	3.4%
Brazil	4.4%
South Korea	10.6%
India	18.0%
Taiwan	18.7%
China	28.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	24.4%
Information Technology	23.8%
Consumer Discretionary	12.7%
Communication Services	9.8%
Industrials	6.8%
Materials	5.7%
Consumer Staples	4.4%
Energy	4.2%
Health Care	3.2%
Utilities	2.6%
Real Estate	1.6%
Consumer, Non-cyclical	0.1%
Short-Term Investments	1.5%
Liabilities in Excess of Other Assets	(0.8)%

Largest Holdings [Text Block]

Top 10 Holdings

Taiwan Semiconductor Manufacturing Co. Ltd.	10.2%
Tencent Holdings Ltd.	4.7%
Alibaba Group Holding Ltd.	2.8%
Samsung Electronics Co. Ltd.	2.7%
HDFC Bank Ltd.	1.5%
Xiaomi Corp. - Class B	1.5%
SK Hynix, Inc.	1.3%
Reliance Industries Ltd.	1.2%
China Construction Bank Corp. - Class H	1.1%
ICICI Bank Ltd.	1.0%

Shareholder Report [Line Items]

Voya VACS Index Series I Portfolio

Portfolio

VVIIX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya VACS Index Series I Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
VACS Index Series	$9	0.16%

Expenses Paid, Amount

$ 9

Expense Ratio, Percent

0.16%

$ 1,754,888,151

Holdings Count | Holding

725

InvestmentCompanyPortfolioTurnover

7.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$1,754,888,151
# of Portfolio Holdings725
Portfolio Turnover Rate7%

Holdings [Text Block]

Country Weightings

A graphical representation of Investments made.

Value	Value
Assets in Excess of Other Liabilities	2.2%
Countries-Other	11.2%
Sweden	3.0%
Italy	3.1%
Spain	3.1%
Netherlands	4.1%
Switzerland	4.8%
Australia	6.8%
France	9.3%
United States	10.0%
Germany	10.1%
United Kingdom	11.1%
Japan	21.2%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	23.3%
Industrials	18.6%
Health Care	11.0%
Consumer Discretionary	9.6%
Information Technology	8.3%
Consumer Staples	7.8%
Materials	5.5%
Communication Services	5.3%
Utilities	3.4%
Energy	3.1%
Real Estate	1.9%
Short-Term Investments	4.6%
Liabilities in Excess of Other Assets	(2.4)%

Largest Holdings [Text Block]

Top 10 Holdings

SAP SE	1.7%
ASML Holding NV	1.6%
Nestle SA	1.4%
Novartis AG	1.2%
Roche Holding AG	1.2%
Novo Nordisk A/S - Class B	1.2%
AstraZeneca PLC	1.1%
HSBC Holdings PLC	1.1%
Shell PLC	1.1%
Commonwealth Bank of Australia	1.1%

Shareholder Report [Line Items]

Voya VACS Index Series MC Portfolio

Portfolio

VVIMX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya VACS Index Series MC Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
VACS Index Series	$8	0.16%

Expenses Paid, Amount

$ 8

Expense Ratio, Percent

0.16%

$ 370,095,618

Holdings Count | Holding

821

InvestmentCompanyPortfolioTurnover

28.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$370,095,618
# of Portfolio Holdings821
Portfolio Turnover Rate28%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(0.1)%
Short-Term Investments	0.3%
Exchange-Traded Funds	1.7%
Common Stock	98.1%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Industrials	17.6%
Financials	15.1%
Consumer Discretionary	11.5%
Information Technology	11.4%
Health Care	9.1%
Real Estate	7.3%
Utilities	6.0%
Energy	5.9%
Consumer Staples	5.2%
Materials	5.0%
Communication Services	4.0%
Exchange-Traded Funds	1.7%
Short-Term Investments	0.3%
Liabilities in Excess of Other Assets	(0.1)%

Largest Holdings [Text Block]

Top 10 Holdings

iShares Russell Mid-Cap ETF	1.7%
Royal Caribbean Cruises Ltd.	0.6%
Howmet Aerospace, Inc.	0.6%
Coinbase Global, Inc. - Class A	0.6%
Robinhood Markets, Inc. - Class A	0.6%
Vistra Corp.	0.5%
Bank of New York Mellon Corp.	0.5%
Hilton Worldwide Holdings, Inc.	0.5%
Axon Enterprise, Inc.	0.5%
Cloudflare, Inc. - Class A	0.5%

Shareholder Report [Line Items]

Voya VACS Index Series SC Portfolio

Portfolio

VVICX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Voya VACS Index Series SC Portfolio for the period of January 1, 2025 to June 30, 2025.

Shareholder Report Annual or Semi-Annual

Semi-Annual Shareholder Report

Additional Information Phone Number

1-800-992-0180

Expenses [Text Block]

What were the Fund’s costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Costs of $10K investment	Costs paid as % of $10K investment (Annualized)
VACS Index Series	$8	0.16%

Expenses Paid, Amount

$ 8

Expense Ratio, Percent

0.16%

$ 184,047,744

Holdings Count | Holding

1,758

InvestmentCompanyPortfolioTurnover

15.00%

Additional Fund Statistics [Text Block]

Fund Statistics

Total Net Assets$184,047,744
# of Portfolio Holdings1,758
Portfolio Turnover Rate15%

Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.

Value	Value
Liabilities in Excess of Other Assets	(3.5)%
Short-Term Investments	6.2%
Common Stock	97.3%

Sector Allocation

A graphical representation of Investments made.

Value	Value
Financials	18.7%
Industrials	16.6%
Health Care	15.5%
Information Technology	14.4%
Consumer Discretionary	9.8%
Real Estate	5.9%
Energy	4.8%
Materials	3.7%
Utilities	3.1%
Communication Services	2.6%
Consumer Staples	2.2%
Short-Term Investments	6.2%
Liabilities in Excess of Other Assets	(3.5)%

Largest Holdings [Text Block]

Top 10 Holdings

Credo Technology Group Holding Ltd.	0.5%
Fabrinet	0.4%
IonQ, Inc.	0.4%
Hims & Hers Health, Inc.	0.4%
HealthEquity, Inc.	0.4%
Ensign Group, Inc.	0.3%
Fluor Corp.	0.3%
Blueprint Medicines Corp.	0.3%
AeroVironment, Inc.	0.3%
Brinker International, Inc.	0.3%