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 DEUTSCHE DWS INVESTMENTS VIT FUNDS
Entity Central Index Key 0001006373
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000017151  
Shareholder Report [Line Items]  
Fund Name DWS Equity 500 Index VIP
No Trading Symbol [Flag] true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about DWS Equity 500 Index VIP (the "Fund") for the period January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund on the Fund's website at dws.com/vipreports. You can also request this information by contacting us at (800) 728-3337.
Additional Information Phone Number (800) 728-3337
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">dws.com/vipreports</span>
Expenses [Text Block]

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Fund
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A
$13
0.25%Footnote Reference(a)
FootnoteDescription
Footnote(a)
Annualized.

Gross expense ratio as of the latest prospectus: 0.27%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. Fund costs do not reflect any fees or sales charges imposed by a variable contract for which the Fund is an investment option.

Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [1]
AssetsNet $ 784,755,719
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 462,217
InvestmentCompanyPortfolioTurnover 2.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets ($)
784,755,719
Number of Portfolio Holdings
506
Portfolio Turnover Rate (%)
2
Total Net Advisory Fees Paid ($)
462,217
Holdings [Text Block]

Asset Allocation

Asset Type
% of Net Assets
Common Stocks
99%
Cash Equivalents
1%
Government & Agency Obligations
0%
Other Assets and Liabilities, Net
0%
Total
100%

Sector Allocation

Sector
% of Net Assets
Information Technology
33%
Financials
14%
Consumer Discretionary
10%
Communication Services
10%
Health Care
9%
Industrials
9%
Consumer Staples
5%
Energy
3%
Utilities
2%
Real Estate
2%
Materials
2%

Ten Largest Equity Holdings

Holdings
37.8% of Net Assets
NVIDIA Corp.
7.3%
Microsoft Corp.
7.0%
Apple, Inc.
5.8%
Amazon.com, Inc.
3.9%
Alphabet, Inc.
3.5%
Meta Platforms, Inc.
3.0%
Broadcom, Inc.
2.4%
Berkshire Hathaway, Inc.
1.7%
Tesla, Inc.
1.7%
JPMorgan Chase & Co.
1.5%
C000017152  
Shareholder Report [Line Items]  
Fund Name DWS Equity 500 Index VIP
No Trading Symbol [Flag] true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about DWS Equity 500 Index VIP (the "Fund") for the period January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find additional information about the Fund on the Fund's website at dws.com/vipreports. You can also request this information by contacting us at (800) 728-3337.
Additional Information Phone Number (800) 728-3337
Additional Information Website <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">dws.com/vipreports</span>
Expenses [Text Block]

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Fund
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class B
$33
0.64%Footnote Reference(a)
FootnoteDescription
Footnote(a)
Annualized.

Gross expense ratio as of the latest prospectus: 0.66%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. Fund costs do not reflect any fees or sales charges imposed by a variable contract for which the Fund is an investment option.

Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.64% [2]
AssetsNet $ 784,755,719
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 462,217
InvestmentCompanyPortfolioTurnover 2.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets ($)
784,755,719
Number of Portfolio Holdings
506
Portfolio Turnover Rate (%)
2
Total Net Advisory Fees Paid ($)
462,217
Holdings [Text Block]

Asset Allocation

Asset Type
% of Net Assets
Common Stocks
99%
Cash Equivalents
1%
Government & Agency Obligations
0%
Other Assets and Liabilities, Net
0%
Total
100%

Sector Allocation

Sector
% of Net Assets
Information Technology
33%
Financials
14%
Consumer Discretionary
10%
Communication Services
10%
Health Care
9%
Industrials
9%
Consumer Staples
5%
Energy
3%
Utilities
2%
Real Estate
2%
Materials
2%

Ten Largest Equity Holdings

Holdings
37.8% of Net Assets
NVIDIA Corp.
7.3%
Microsoft Corp.
7.0%
Apple, Inc.
5.8%
Amazon.com, Inc.
3.9%
Alphabet, Inc.
3.5%
Meta Platforms, Inc.
3.0%
Broadcom, Inc.
2.4%
Berkshire Hathaway, Inc.
1.7%
Tesla, Inc.
1.7%
JPMorgan Chase & Co.
1.5%
[1] Annualized.
[2] Annualized.