| Form N-CSR Cover | 6 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | T. ROWE PRICE EQUITY FUNDS, INC. |
| Entity Central Index Key | 0001012968 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | T. ROWE PRICE EQUITY FUNDS, INC. |
| Entity Central Index Key | 0001012968 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| C000005460 | |
| Shareholder Report [Line Items] | |
| Fund Name | Institutional Mid-Cap Equity Growth Fund |
| Trading Symbol | PMEGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Institutional Mid-Cap Equity Growth Fund (the "fund") for the period of January 1, 2024 to June 30, 2024. 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 at www.troweprice.com/prospectus info troweprice.com |
| 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 at www.troweprice.com/prospectus info troweprice.com |
| Material Fund Change Notice [Text Block] | |
| Additional Information Phone Number | 1‑800‑638‑5660 |
| Additional Information Email | info@troweprice.com</span>" id="sjs-B19"><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;">info@troweprice.com</span> |
| Additional Information Website | www.troweprice.com/prospectus</span>" id="sjs-B20"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 17.3333px; margin: 0px; overflow: visible; text-align: justify;">www.troweprice.com/prospectus</span> |
| Expenses [Text Block] | What were the fund costs for the last six months? Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Mid-Cap Equity Growth Fund $31 0.61% |
| Expenses Paid, Amount | $ 31 |
| Expense Ratio, Percent | 0.61% |
| 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 |
| AssetsNet | $ 4,995,249,000 |
| Holdings Count | Holding | 127 |
| InvestmentCompanyPortfolioTurnover | 14.40% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $4,995,249 Number of Portfolio Holdings 127 |
| Additional Fund Statistics Significance or Limits [Text Block] | Portfolio Turnover Rate 14.4% |
| Holdings [Text Block] | Sector Allocation Health Care 23.0 % Information Technology 18.2 Industrials & Business Services 16.2 Consumer Discretionary 12.3 Financials 7.3 Materials 5.9 Communication Services 5.7 Energy 5.2 Consumer Staples 4.0 Other 2.2 |
| Largest Holdings [Text Block] | Top Ten Holdings Marvell Technology 2.9 % Microchip Technology 2.8 Hologic 2.7 Trade Desk 2.4 Teleflex 2.1 Domino's Pizza 2.0 Agilent Technologies 2.0 Textron 1.9 Ball 1.7 PTC 1.7 |
| Material Fund Change [Text Block] | |
| Updated Prospectus Web Address | www.troweprice.com/paperless</span>" id="sjs-B33"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 13.8667px; margin: 0px; overflow: visible; text-align: justify;">www.troweprice.com/paperless</span> |
| Shareholder Report, Holdings (Details) - C000005460 | Jun. 30, 2024 |
| Marvell Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Microchip Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Hologic | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Trade Desk | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| Teleflex | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Domino's Pizza | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Agilent Technologies | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Textron | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Ball | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| PTC | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23% |
| Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.20% |
| Industrials & Business Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.20% |
| Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
