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Shareholder Report
 6 Months Ended
Nov. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name T. ROWE PRICE RETIREMENT FUNDS, INC.
Entity Central Index Key 0001177017
Entity Investment Company Type N-1A
Document Period End Date Nov. 30, 2025
C000222711  
Shareholder Report [Line Items]  
Fund Name Retirement Blend 2030 Fund
Class Name Investor Class
Trading Symbol TBLWX
Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Retirement Blend 2030 Fund (the "fund") for the period of June 1, 2025 to November 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
Retirement Blend 2030 Fund - Investor Class
$20
0.38%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.38%
AssetsNet $ 1,225,136,000
Holdings Count | Holding 26
InvestmentCompanyPortfolioTurnover 7.10%
Additional Fund Statistics Significance or Limits [Text Block]

What are some fund statistics?

Fund Statistics

Total Net Assets (000s)
$1,225,136
Number of Portfolio Holdings
26
Holdings [Text Block]
Domestic Equity Funds
46.4%
Domestic Bond Funds
22.5
International Equity Funds
18.3
International Bond Funds
9.4
Short-Term and Other
3.4
Largest Holdings [Text Block]
T. Rowe Price Equity Index 500 Fund
18.6%
T. Rowe Price QM U.S. Bond Index Fund
11.6
T. Rowe Price International Equity Index Fund
9.0
T. Rowe Price Value Fund
6.6
T. Rowe Price Growth Stock Fund
6.3
T. Rowe Price U.S. Limited Duration TIPS Index Fund
5.4
T. Rowe Price International Bond Fund (USD Hedged)
4.4
T. Rowe Price Real Assets Fund
4.3
T. Rowe Price International Value Equity Fund
3.5
T. Rowe Price Hedged Equity Fund
3.3
Material Fund Change [Text Block]
Updated Prospectus Web Address www.troweprice.com/paperless
C000222710  
Shareholder Report [Line Items]  
Fund Name Retirement Blend 2030 Fund
Class Name I Class
Trading Symbol TBLGX
Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Retirement Blend 2030 Fund (the "fund") for the period of June 1, 2025 to November 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
Retirement Blend 2030 Fund - I Class
$12
0.22%
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.22%
AssetsNet $ 1,225,136,000
Holdings Count | Holding 26
InvestmentCompanyPortfolioTurnover 7.10%
Additional Fund Statistics Significance or Limits [Text Block]

What are some fund statistics?

Fund Statistics

Total Net Assets (000s)
$1,225,136
Number of Portfolio Holdings
26
Holdings [Text Block]
Domestic Equity Funds
46.4%
Domestic Bond Funds
22.5
International Equity Funds
18.3
International Bond Funds
9.4
Short-Term and Other
3.4
Largest Holdings [Text Block]
T. Rowe Price Equity Index 500 Fund
18.6%
T. Rowe Price QM U.S. Bond Index Fund
11.6
T. Rowe Price International Equity Index Fund
9.0
T. Rowe Price Value Fund
6.6
T. Rowe Price Growth Stock Fund
6.3
T. Rowe Price U.S. Limited Duration TIPS Index Fund
5.4
T. Rowe Price International Bond Fund (USD Hedged)
4.4
T. Rowe Price Real Assets Fund
4.3
T. Rowe Price International Value Equity Fund
3.5
T. Rowe Price Hedged Equity Fund
3.3
Material Fund Change [Text Block]
Updated Prospectus Web Address www.troweprice.com/paperless