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 |
| C000129664 | |
| Shareholder Report [Line Items] | |
| Fund Name | Target 2020 Fund |
| Class Name | Investor Class |
| Trading Symbol | (TRRUX) |
| 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 Target 2020 Fund - Investor Class $52 0.49% |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 0.49% |
| 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. Versus the style-specific S&P Target Date 2020 Index, structural composition contributed to performance for the trailing one-year period. Security selection within the underlying U.S. large-cap equity strategies also had a favorable impact. The funds allocations to U.S. large-cap value and core equities each outpaced their respective benchmarks, which added value on a relative basis. On the negative side, as global equity markets climbed, the funds modestly lower equity allocations relative to its benchmark detracted from results. Also, a leading detractor from relative performance was security selection within the dynamic global bond strategy, which trailed its benchmark. Selection among the emerging markets stock allocation 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 5 Years 10 Years Target 2020 Fund (Investor Class) 11.31 % 5.82 % 5.13 % Bloomberg U.S. Aggregate Bond Index (Regulatory Benchmark) 1.31 - 1.26 S&P Target Date 2020 Index (Strategy Benchmark) 11.28 5.80 5.23 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 | $ 296,591,000 |
| Holdings Count | Holding | 27 |
| Advisory Fees Paid, Amount | $ 1,201,000 |
| InvestmentCompanyPortfolioTurnover | 34.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $296,591 Number of Portfolio Holdings 27 |
| Holdings [Text Block] | Asset Allocation Domestic Bond Funds 43.2 % Domestic Equity Funds 30.3 International Bond Funds 14.0 International Equity Funds 10.1 Short-Term and Other 2.4 |
| Largest Holdings [Text Block] | Top Ten Holdings T. Rowe Price Limited Duration Inflation Focused Bond Fund 19.7 % T. Rowe Price New Income Fund 15.6 T. Rowe Price Value Fund 6.0 T. Rowe Price Growth Stock Fund 5.5 T. Rowe Price International Bond Fund (USD Hedged) 5.3 T. Rowe Price Hedged Equity Fund 4.1 T. Rowe Price U.S. Large-Cap Core Fund 3.9 T. Rowe Price Emerging Markets Bond Fund 3.7 T. Rowe Price Dynamic Global Bond Fund 3.6 T. Rowe Price High Yield Fund 3.5 |
| Material Fund Change [Text Block] | |
| C000129665 | |
| Shareholder Report [Line Items] | |
| Fund Name | Target 2020 Fund |
| Class Name | Advisor Class |
| Trading Symbol | (PAIRX) |
| 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 Target 2020 Fund - Advisor Class $78 0.74% |
| Expenses Paid, Amount | $ 78 |
| Expense Ratio, Percent | 0.74% |
| 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. Versus the style-specific S&P Target Date 2020 Index, structural composition contributed to performance for the trailing one-year period. Security selection within the underlying U.S. large-cap equity strategies also had a favorable impact. The funds allocations to U.S. large-cap value and core equities each outpaced their respective benchmarks, which added value on a relative basis. On the negative side, as global equity markets climbed, the funds modestly lower equity allocations relative to its benchmark detracted from results. Also, a leading detractor from relative performance was security selection within the dynamic global bond strategy, which trailed its benchmark. Selection among the emerging markets stock allocation 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 5 Years 10 Years Target 2020 Fund (Advisor Class) 11.02 % 5.56 % 4.85 % Bloomberg U.S. Aggregate Bond Index (Regulatory Benchmark) 1.31 - 1.26 S&P Target Date 2020 Index (Strategy Benchmark) 11.28 5.80 5.23 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 | $ 296,591,000 |
| Holdings Count | Holding | 27 |
| Advisory Fees Paid, Amount | $ 1,201,000 |
| InvestmentCompanyPortfolioTurnover | 34.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $296,591 Number of Portfolio Holdings 27 |
| Holdings [Text Block] | Asset Allocation Domestic Bond Funds 43.2 % Domestic Equity Funds 30.3 International Bond Funds 14.0 International Equity Funds 10.1 Short-Term and Other 2.4 |
| Largest Holdings [Text Block] | Top Ten Holdings T. Rowe Price Limited Duration Inflation Focused Bond Fund 19.7 % T. Rowe Price New Income Fund 15.6 T. Rowe Price Value Fund 6.0 T. Rowe Price Growth Stock Fund 5.5 T. Rowe Price International Bond Fund (USD Hedged) 5.3 T. Rowe Price Hedged Equity Fund 4.1 T. Rowe Price U.S. Large-Cap Core Fund 3.9 T. Rowe Price Emerging Markets Bond Fund 3.7 T. Rowe Price Dynamic Global Bond Fund 3.6 T. Rowe Price High Yield Fund 3.5 |
| Material Fund Change [Text Block] | |
| C000169043 | |
| Shareholder Report [Line Items] | |
| Fund Name | Target 2020 Fund |
| Class Name | I Class |
| Trading Symbol | (TTURX) |
| 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 Target 2020 Fund - I Class $35 0.33% |
| Expenses Paid, Amount | $ 35 |
| Expense Ratio, Percent | 0.33% |
| 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. Versus the style-specific S&P Target Date 2020 Index, structural composition contributed to performance for the trailing one-year period. Security selection within the underlying U.S. large-cap equity strategies also had a favorable impact. The funds allocations to U.S. large-cap value and core equities each outpaced their respective benchmarks, which added value on a relative basis. On the negative side, as global equity markets climbed, the funds modestly lower equity allocations relative to its benchmark detracted from results. Also, a leading detractor from relative performance was security selection within the dynamic global bond strategy, which trailed its benchmark. Selection among the emerging markets stock allocation 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 5 Years Since Inception 2/26/2016 Target 2020 Fund (I Class) 11.48 % 6.00 % 6.64 % Bloomberg U.S. Aggregate Bond Index (Regulatory Benchmark) 1.31 - 0.97 S&P Target Date 2020 Index (Strategy Benchmark) 11.28 5.80 6.48 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 | $ 296,591,000 |
| Holdings Count | Holding | 27 |
| Advisory Fees Paid, Amount | $ 1,201,000 |
| InvestmentCompanyPortfolioTurnover | 34.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $296,591 Number of Portfolio Holdings 27 |
| Holdings [Text Block] | Asset Allocation Domestic Bond Funds 43.2 % Domestic Equity Funds 30.3 International Bond Funds 14.0 International Equity Funds 10.1 Short-Term and Other 2.4 |
| Largest Holdings [Text Block] | Top Ten Holdings T. Rowe Price Limited Duration Inflation Focused Bond Fund 19.7 % T. Rowe Price New Income Fund 15.6 T. Rowe Price Value Fund 6.0 T. Rowe Price Growth Stock Fund 5.5 T. Rowe Price International Bond Fund (USD Hedged) 5.3 T. Rowe Price Hedged Equity Fund 4.1 T. Rowe Price U.S. Large-Cap Core Fund 3.9 T. Rowe Price Emerging Markets Bond Fund 3.7 T. Rowe Price Dynamic Global Bond Fund 3.6 T. Rowe Price High Yield Fund 3.5 |
| Material Fund Change [Text Block] |
Shareholder Report, Average Ann
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 99 Months Ended | 120 Months Ended |
| May 31, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | |
| Without Sales Load [Member] | C000129664 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.31% | 5.82% | 5.13% | |
| Without Sales Load [Member] | C000129665 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.02% | 5.56% | 4.85% | |
| Without Sales Load [Member] | C000169043 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.48% | 6% | 6.64% | |
| Bloomberg U.S. Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% | |
| Bloomberg U.S. Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% | |
| Bloomberg U.S. Aggregate Bond Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.31% | (0.17%) | 0.97% | |
| S&P Target Date 2020 Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.28% | 5.80% | 5.23% | |
| S&P Target Date 2020 Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.28% | 5.80% | 5.23% | |
| S&P Target Date 2020 Index | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.28% | 5.80% | 6.48% |