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 T. ROWE PRICE EQUITY SERIES, INC.
Entity Central Index Key 0000918294
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000005439  
Shareholder Report [Line Items]  
Fund Name Equity Income Portfolio
Class Name Equity Income Portfolio Class
Trading Symbol QAAHCX
Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Equity Income Portfolio (the "fund") for the period of January 1, 2025 to June 30, 2025. You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary. 

Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary.
Material Fund Change Notice [Text Block]  
Additional Information Phone Number 1‑800‑638‑5660
Additional Information Email <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 17.3333px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@troweprice.com</span>
Additional Information Website www.troweprice.com/prospectus
Expenses [Text Block]

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

 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Equity Income Portfolio Class
$38
0.74%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.74%
Updated Performance Information Location [Text Block]

If you invest directly with T. Rowe Price, you can elect to receive future shareholder reports or other important documents through electronic delivery by enrolling at www.troweprice.com/paperless. If you invest through a financial intermediary such as an investment advisor, a bank, retirement plan sponsor or a brokerage firm, please contact that organization and ask if it can provide electronic delivery.

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet $ 794,150,000
Holdings Count | Holding 121
InvestmentCompanyPortfolioTurnover 18.10%
Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Total Net Assets (000s)
$794,150
Number of Portfolio Holdings
121
Additional Fund Statistics Significance or Limits [Text Block]
Portfolio Turnover Rate
18.1%
Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Financials
22.8%
Industrials & Business Services
13.5
Health Care
12.8
Information Technology
8.9
Energy
8.8
Consumer Staples
8.8
Utilities
5.9
Communication Services
5.8
Consumer Discretionary
4.4
Other
8.3
Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Alphabet
2.1%
MetLife
2.1
Southern
2.0
QUALCOMM
1.9
Charles Schwab
1.9
JPMorgan Chase
1.9
Wells Fargo
1.9
Elevance Health
1.8
Boeing
1.8
L3Harris Technologies
1.7
Material Fund Change [Text Block]
Updated Prospectus Web Address www.troweprice.com/paperless
C000005440  
Shareholder Report [Line Items]  
Fund Name Equity Income Portfolio
Class Name Equity Income Portfolio - II Class
Trading Symbol QAAHAX
Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Equity Income Portfolio (the "fund") for the period of January 1, 2025 to June 30, 2025. You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary. 

Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
Additional Information [Text Block] You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary.
Material Fund Change Notice [Text Block]  
Additional Information Phone Number 1‑800‑638‑5660
Additional Information Email <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 17.3333px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@troweprice.com</span>
Additional Information Website www.troweprice.com/prospectus
Expenses [Text Block]

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

 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Equity Income Portfolio - II Class
$51
0.99%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 0.99%
Updated Performance Information Location [Text Block]

If you invest directly with T. Rowe Price, you can elect to receive future shareholder reports or other important documents through electronic delivery by enrolling at www.troweprice.com/paperless. If you invest through a financial intermediary such as an investment advisor, a bank, retirement plan sponsor or a brokerage firm, please contact that organization and ask if it can provide electronic delivery.

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet $ 794,150,000
Holdings Count | Holding 121
InvestmentCompanyPortfolioTurnover 18.10%
Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Total Net Assets (000s)
$794,150
Number of Portfolio Holdings
121
Additional Fund Statistics Significance or Limits [Text Block]
Portfolio Turnover Rate
18.1%
Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Financials
22.8%
Industrials & Business Services
13.5
Health Care
12.8
Information Technology
8.9
Energy
8.8
Consumer Staples
8.8
Utilities
5.9
Communication Services
5.8
Consumer Discretionary
4.4
Other
8.3
Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Alphabet
2.1%
MetLife
2.1
Southern
2.0
QUALCOMM
1.9
Charles Schwab
1.9
JPMorgan Chase
1.9
Wells Fargo
1.9
Elevance Health
1.8
Boeing
1.8
L3Harris Technologies
1.7
Material Fund Change [Text Block]
Updated Prospectus Web Address www.troweprice.com/paperless