Form N-CSR Cover
| Form N-CSR Cover | 12 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| 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 | May 31, 2024 |
Shareholder Report
| Shareholder Report | 12 Months Ended |
| May 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| 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 | May 31, 2024 |
| C000222709 | |
| Shareholder Report [Line Items] | |
| Fund Name | Retirement Blend 2025 Fund |
| Class Name | Investor Class |
| Trading Symbol | (TBLVX) |
| Annual or Semi-Annual Statement [Text Block] | Annual Shareholder Report |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find the funds prospectus, financial information on Form N-CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information at |
| Expenses [Text Block] | What were the fund costs for the last year? Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Retirement Blend 2025 Fund - Investor Class $41 0.38% |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.38% |
| Factors Affecting Performance [Text Block] | What drove fund performance during the past 12 months? Global stock indexes were broadly positive, while fixed income markets were mixed for the 12 months ended May 31, 2024. Many central banks maintained tight monetary policies to combat inflation, and markets fluctuated amid shifting expectations for interest rate cuts as rates remained higher for longer. Nevertheless, investor sentiment was elevated by resilient corporate earnings and enthusiasm around the profit potential from artificial intelligence developments. Compared with the style-specific S&P Target Date 2025 Index, structural composition contributed to performance for the trailing one-year period. As global equity markets climbed, the funds higher-equity and lower-cash allocations relative to its benchmark contributed to results. Security selection within the underlying U.S. large-cap value equity and emerging markets bond allocations also had favorable impacts, as the corresponding strategies each outpaced their respective benchmarks, which added value on a relative basis. On the negative side, a leading detractor from relative performance was security selection within the dynamic global bond strategy, which trailed its benchmark. Selection within the emerging markets equity strategy weighed, as well, as it also trailed its benchmark and detracted on a relative basis. The fund seeks the highest total return over time, consistent with an emphasis on both capital growth and income. The fund invests in a diversified portfolio of other T. Rowe Price stock and bond mutual funds that represent various asset classes and sectors. Its allocation among T. Rowe Price funds will change over time in relation to its target retirement date. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Inception 7/26/2021 Retirement Blend 2025 Fund (Investor Class) 14.76 % 1.49 % Russell 3000 Index (Regulatory Benchmark) 27.58 6.53 S&P Target Date 2025 Index (Strategy Benchmark) 11.97 1.56 The preceding line graph shows the value of a hypothetical $10,000 investment in the fund over the past 10 fiscal year periods or since inception (for funds lacking 10-year records). The funds performance information included in the line graph and table above is compared with a regulatory required index that represents an overall securities market (Regulatory Benchmark). In addition, the line graph and table may also include one or more indexes that more closely aligns to the fund's investment strategy (Strategy Benchmark(s)). Due to new SEC Rules on shareholder reporting the fund adopted a new broad-based securities market index, referred to as the Regulatory Benchmark. Market index returns do not include expenses, which are deducted from fund returns. The fund's total return figures reflect the reinvestment of dividends and capital gains, if any. Neither the funds returns nor the index returns reflect the deduction of taxes that a shareholder would pay on fund distributions or redemptions of fund shares. The funds past performance is not a good predictor of the funds future performance. www.troweprice.com |
| AssetsNet | $ 292,022,000 |
| Holdings Count | Holding | 26 |
| Advisory Fees Paid, Amount | $ 492,000 |
| InvestmentCompanyPortfolioTurnover | 23.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $292,022 Number of Portfolio Holdings 26 |
| Holdings [Text Block] | Asset Allocation Domestic Equity Funds 43.5 % Domestic Bond Funds 28.4 International Equity Funds 14.8 International Bond Funds 11.2 Short-Term and Other 2.1 |
| Largest Holdings [Text Block] | Top Ten Holdings T. Rowe Price Equity Index 500 Fund 16.3 % T. Rowe Price QM U.S. Bond Index Fund 13.0 T. Rowe Price U.S. Limited Duration TIPS Index Fund 8.7 T. Rowe Price International Equity Index Fund 7.5 T. Rowe Price Value Fund 5.8 T. Rowe Price Growth Stock Fund 5.3 T. Rowe Price Hedged Equity Fund 5.1 T. Rowe Price International Bond Fund (USD Hedged) 4.5 T. Rowe Price Real Assets Fund 3.9 T. Rowe Price U.S. Treasury Long-Term Index Fund 3.3 |
| Material Fund Change [Text Block] | |
| C000222708 | |
| Shareholder Report [Line Items] | |
| Fund Name | Retirement Blend 2025 Fund |
| Class Name | I Class |
| Trading Symbol | (TBLEX) |
| Annual or Semi-Annual Statement [Text Block] | Annual Shareholder Report |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find the funds prospectus, financial information on Form N-CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information at |
| Expenses [Text Block] | What were the fund costs for the last year? Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Retirement Blend 2025 Fund - I Class $24 0.22% |
| Expenses Paid, Amount | $ 24 |
| Expense Ratio, Percent | 0.22% |
| Factors Affecting Performance [Text Block] | What drove fund performance during the past 12 months? Global stock indexes were broadly positive, while fixed income markets were mixed for the 12 months ended May 31, 2024. Many central banks maintained tight monetary policies to combat inflation, and markets fluctuated amid shifting expectations for interest rate cuts as rates remained higher for longer. Nevertheless, investor sentiment was elevated by resilient corporate earnings and enthusiasm around the profit potential from artificial intelligence developments. Compared with the style-specific S&P Target Date 2025 Index, structural composition contributed to performance for the trailing one-year period. As global equity markets climbed, the funds higher-equity and lower-cash allocations relative to its benchmark contributed to results. Security selection within the underlying U.S. large-cap value equity and emerging markets bond allocations also had favorable impacts, as the corresponding strategies each outpaced their respective benchmarks, which added value on a relative basis. On the negative side, a leading detractor from relative performance was security selection within the dynamic global bond strategy, which trailed its benchmark. Selection within the emerging markets equity strategy weighed, as well, as it also trailed its benchmark and detracted on a relative basis. The fund seeks the highest total return over time, consistent with an emphasis on both capital growth and income. The fund invests in a diversified portfolio of other T. Rowe Price stock and bond mutual funds that represent various asset classes and sectors. Its allocation among T. Rowe Price funds will change over time in relation to its target retirement date. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Inception 7/26/2021 Retirement Blend 2025 Fund (I Class) 14.97 % 1.61 % Russell 3000 Index (Regulatory Benchmark) 27.58 6.53 S&P Target Date 2025 Index (Strategy Benchmark) 11.97 1.56 The preceding line graph shows the value of a hypothetical $500,000 investment in the fund over the past 10 fiscal year periods or since inception (for funds lacking 10-year records). The funds performance information included in the line graph and table above is compared with a regulatory required index that represents an overall securities market (Regulatory Benchmark). In addition, the line graph and table may also include one or more indexes that more closely aligns to the fund's investment strategy (Strategy Benchmark(s)). Due to new SEC Rules on shareholder reporting the fund adopted a new broad-based securities market index, referred to as the Regulatory Benchmark. Market index returns do not include expenses, which are deducted from fund returns. The fund's total return figures reflect the reinvestment of dividends and capital gains, if any. Neither the funds returns nor the index returns reflect the deduction of taxes that a shareholder would pay on fund distributions or redemptions of fund shares. The funds past performance is not a good predictor of the funds future performance. www.troweprice.com |
| AssetsNet | $ 292,022,000 |
| Holdings Count | Holding | 26 |
| Advisory Fees Paid, Amount | $ 492,000 |
| InvestmentCompanyPortfolioTurnover | 23.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $292,022 Number of Portfolio Holdings 26 |
| Holdings [Text Block] | Asset Allocation Domestic Equity Funds 43.5 % Domestic Bond Funds 28.4 International Equity Funds 14.8 International Bond Funds 11.2 Short-Term and Other 2.1 |
| Largest Holdings [Text Block] | Top Ten Holdings T. Rowe Price Equity Index 500 Fund 16.3 % T. Rowe Price QM U.S. Bond Index Fund 13.0 T. Rowe Price U.S. Limited Duration TIPS Index Fund 8.7 T. Rowe Price International Equity Index Fund 7.5 T. Rowe Price Value Fund 5.8 T. Rowe Price Growth Stock Fund 5.3 T. Rowe Price Hedged Equity Fund 5.1 T. Rowe Price International Bond Fund (USD Hedged) 4.5 T. Rowe Price Real Assets Fund 3.9 T. Rowe Price U.S. Treasury Long-Term Index Fund 3.3 |
| Material Fund Change [Text Block] |
Shareholder Report, Average Ann
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 34 Months Ended |
| May 31, 2024 | May 31, 2024 | |
| Without Sales Load [Member] | C000222709 | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 14.76% | 1.49% |
| Without Sales Load [Member] | C000222708 | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 14.97% | 1.61% |
| Russell 3000 Index | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 27.58% | 6.53% |
| Russell 3000 Index | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 27.58% | 6.53% |
| S&P Target Date 2025 Index | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 11.97% | 1.56% |
| S&P Target Date 2025 Index | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 11.97% | 1.56% |