v3.25.2
Shareholder Report
6 Months Ended
Jun. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Voya Variable Funds
Entity Central Index Key 0000002664
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000028787  
Shareholder Report [Line Items]  
Fund Name Voya Growth and Income Portfolio
Class Name Class ADV
Trading Symbol IAVGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Voya Growth and Income 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
$57
1.12%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.12%
AssetsNet $ 2,510,425,555
Holdings Count | Holding 74
InvestmentCompanyPortfolioTurnover 41.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Total Net Assets$2,510,425,555
  • # of Portfolio Holdings74
  • Portfolio Turnover Rate41%
Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.
Value
Value
Liabilities in Excess of Other Assets
(0.9)%
Short-Term Investments
1.5%
Common Stock
99.4%

Sector Allocation 

A graphical representation of Investments made.
Value
Value
Information Technology
32.3%
Financials
14.0%
Health Care
10.2%
Communication Services
9.7%
Industrials
8.1%
Consumer Discretionary
7.8%
Consumer Staples
5.3%
Energy
4.2%
Real Estate
3.2%
Utilities
2.5%
Materials
2.1%
Short-Term Investments
1.5%
Liabilities in Excess of Other Assets
(0.9)%
Largest Holdings [Text Block]

Top 10 Holdings 

Microsoft Corp.
8.3%
Apple, Inc.
6.3%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc. - Class A
4.5%
Broadcom, Inc.
4.1%
NVIDIA Corp.
3.6%
Taiwan Semiconductor Manufacturing Co. Ltd.
2.2%
AT&T, Inc.
1.8%
Micron Technology, Inc.
1.9%
Boeing Co.
1.8%
C000028788  
Shareholder Report [Line Items]  
Fund Name Voya Growth and Income Portfolio
Class Name Class I
Trading Symbol IIVGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Voya Growth and Income 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
$34
0.67%
Expenses Paid, Amount $ 34
Expense Ratio, Percent 0.67%
AssetsNet $ 2,510,425,555
Holdings Count | Holding 74
InvestmentCompanyPortfolioTurnover 41.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Total Net Assets$2,510,425,555
  • # of Portfolio Holdings74
  • Portfolio Turnover Rate41%
Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.
Value
Value
Liabilities in Excess of Other Assets
(0.9)%
Short-Term Investments
1.5%
Common Stock
99.4%

Sector Allocation 

A graphical representation of Investments made.
Value
Value
Information Technology
32.3%
Financials
14.0%
Health Care
10.2%
Communication Services
9.7%
Industrials
8.1%
Consumer Discretionary
7.8%
Consumer Staples
5.3%
Energy
4.2%
Real Estate
3.2%
Utilities
2.5%
Materials
2.1%
Short-Term Investments
1.5%
Liabilities in Excess of Other Assets
(0.9)%
Largest Holdings [Text Block]

Top 10 Holdings 

Microsoft Corp.
8.3%
Apple, Inc.
6.3%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc. - Class A
4.5%
Broadcom, Inc.
4.1%
NVIDIA Corp.
3.6%
Taiwan Semiconductor Manufacturing Co. Ltd.
2.2%
AT&T, Inc.
1.8%
Micron Technology, Inc.
1.9%
Boeing Co.
1.8%
C000028789  
Shareholder Report [Line Items]  
Fund Name Voya Growth and Income Portfolio
Class Name Class S
Trading Symbol ISVGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Voya Growth and Income 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
$47
0.92%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.92%
AssetsNet $ 2,510,425,555
Holdings Count | Holding 74
InvestmentCompanyPortfolioTurnover 41.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Total Net Assets$2,510,425,555
  • # of Portfolio Holdings74
  • Portfolio Turnover Rate41%
Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.
Value
Value
Liabilities in Excess of Other Assets
(0.9)%
Short-Term Investments
1.5%
Common Stock
99.4%

Sector Allocation 

A graphical representation of Investments made.
Value
Value
Information Technology
32.3%
Financials
14.0%
Health Care
10.2%
Communication Services
9.7%
Industrials
8.1%
Consumer Discretionary
7.8%
Consumer Staples
5.3%
Energy
4.2%
Real Estate
3.2%
Utilities
2.5%
Materials
2.1%
Short-Term Investments
1.5%
Liabilities in Excess of Other Assets
(0.9)%
Largest Holdings [Text Block]

Top 10 Holdings 

Microsoft Corp.
8.3%
Apple, Inc.
6.3%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc. - Class A
4.5%
Broadcom, Inc.
4.1%
NVIDIA Corp.
3.6%
Taiwan Semiconductor Manufacturing Co. Ltd.
2.2%
AT&T, Inc.
1.8%
Micron Technology, Inc.
1.9%
Boeing Co.
1.8%
C000074892  
Shareholder Report [Line Items]  
Fund Name Voya Growth and Income Portfolio
Class Name Class S2
Trading Symbol IGISX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Voya Growth and Income 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
$54
1.07%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.07%
AssetsNet $ 2,510,425,555
Holdings Count | Holding 74
InvestmentCompanyPortfolioTurnover 41.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Total Net Assets$2,510,425,555
  • # of Portfolio Holdings74
  • Portfolio Turnover Rate41%
Holdings [Text Block]

Portfolio Composition

A graphical representation of Investments made.
Value
Value
Liabilities in Excess of Other Assets
(0.9)%
Short-Term Investments
1.5%
Common Stock
99.4%

Sector Allocation 

A graphical representation of Investments made.
Value
Value
Information Technology
32.3%
Financials
14.0%
Health Care
10.2%
Communication Services
9.7%
Industrials
8.1%
Consumer Discretionary
7.8%
Consumer Staples
5.3%
Energy
4.2%
Real Estate
3.2%
Utilities
2.5%
Materials
2.1%
Short-Term Investments
1.5%
Liabilities in Excess of Other Assets
(0.9)%
Largest Holdings [Text Block]

Top 10 Holdings 

Microsoft Corp.
8.3%
Apple, Inc.
6.3%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc. - Class A
4.5%
Broadcom, Inc.
4.1%
NVIDIA Corp.
3.6%
Taiwan Semiconductor Manufacturing Co. Ltd.
2.2%
AT&T, Inc.
1.8%
Micron Technology, Inc.
1.9%
Boeing Co.
1.8%