| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | T. Rowe Price Exchange-Traded Funds, Inc. |
| Entity Central Index Key | 0001795351 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | T. Rowe Price Exchange-Traded Funds, Inc. |
| Entity Central Index Key | 0001795351 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000229338 | |
| Shareholder Report [Line Items] | |
| Fund Name | QM U.S. Bond ETF |
| Trading Symbol | TAGG |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about QM U.S. Bond ETF ("the fund") for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | 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 |
| 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 |
| Expenses [Text Block] | What were the fund costs for the last year Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment QM U.S. Bond ETF $8 0.08% |
| Expenses Paid, Amount | $ 8 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | What drove fund performance during the past 12 months? The U.S. investment-grade (IG) fixed income market generated strongly positive performance for the 12-month reporting period. U.S. Treasury yields fell meaningfully across all maturities as cooling inflation and growth data led investors to price in a faster pace of interest rate cuts by the Federal Reserve. Underweighting U.S. Treasuries while overweighting sectors like IG corporate bonds and commercial mortgage-backed securities added value relative to the Bloomberg U.S. Aggregate Bond Index amid solid risk appetite and robust demand for higher-yielding fixed income sectors. An emphasis on intermediate corporate bonds, which historically have been less volatile compared with longer-term corporates, underperformed relative to the broader corporate sector. Longer-term corporate credit outperformed compared with intermediate maturities as longer-dated corporate bonds saw strong demand from investors looking to lock in high yields. The fund seeks to provide a total return that exceeds the performance of the U.S. investment-grade bond market. Over the period, the fund added to IG corporate credit to capture attractive yields while trimming an overweight exposure in mortgage-backed securities where valuations looked unattractive. The fund held interest rate derivatives during the period, which we use to manage the fund’s duration and yield curve exposures more efficiently. |
| Line Graph [Table Text Block] | QM U.S. Bond ETF (Based on Net Asset Value) Regulatory/Strategy Benchmark 9/28/21 10,000 10,000 10/31/21 9,992 10,007 1/31/22 9,788 9,796 4/30/22 9,045 9,060 7/31/22 9,152 9,195 10/31/22 8,384 8,438 1/31/23 8,936 8,977 4/30/23 8,979 9,021 7/31/23 8,835 8,885 10/31/23 8,422 8,468 1/31/24 9,123 9,165 4/30/24 8,851 8,889 7/31/24 9,314 9,338 10/31/24 9,334 9,361 |
| Average Annual Return [Table Text Block] | Fund 1 Year Since Inception 9/28/21 QM U.S. Bond ETF (Based on Net Asset Value) 10.84 % - % Bloomberg U.S. Aggregate Bond Index (Regulatory/Strategy Benchmark) 10.55 % - % |
| Performance Inception Date | Sep. 28, 2021 |
| AssetsNet | $ 96,437,000 |
| Holdings Count | Holding | 667 |
| Advisory Fees Paid, Amount | $ 75,000 |
| InvestmentCompanyPortfolioTurnover | 131.20% |
| Additional Fund Statistics [Text Block] | What are some fund statistics? Fund Statistics Total Net Assets (000s) $96,437 Number of Portfolio Holdings 667 Investment Advisory Fees Paid (000s) $75 Portfolio Turnover Rate 131.2% |
| Holdings [Text Block] | Credit Quality Allocation* AAA Rated 7.8 % AA Rated 5.8 A Rated 14.3 BBB Rated 14.3 BB Rated 0.2 US Government Agency Securities Rated 27.6 US Treasury Rated 30.0 *Credit ratings for the securities held in the Fund are provided by Moody's, Standard & Poor's, and Fitch and are converted to the Standard & Poor's nomenclature. A rating of AAA represents the highest-rated securities, and a rating of D represents the lowest rated securities. If the ratings agencies differ, the highest rating is applied to the security. If a rating is not available, the security is classified as Not Rated. The rating of the underlying investment vehicle is used to determine the creditworthiness of credit default swaps and sovereign securities. The Fund is not rated by any agency. |
| Largest Holdings [Text Block] | Top Ten Holdings U.S. Treasury Notes 19.6 % Federal National Mortgage Association 15.8 U.S. Treasury Bonds 10.1 Government National Mortgage Association 5.8 Federal Home Loan Mortgage Corp. 4.8 Uniform Mortgage-Backed Security 1.2 Bank of America Corp. 0.9 Wells Fargo & Co. 0.6 Citigroup, Inc. 0.5 AT&T, Inc. 0.5 |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | |||||||||||||
| Oct. 31, 2024 | Jul. 31, 2024 | Apr. 30, 2024 | Jan. 31, 2024 | Oct. 31, 2023 | Jul. 31, 2023 | Apr. 30, 2023 | Jan. 31, 2023 | Oct. 31, 2022 | Jul. 31, 2022 | Apr. 30, 2022 | Jan. 31, 2022 | Oct. 31, 2021 | Sep. 28, 2021 | |
| C000229338 | ||||||||||||||
| Account Value [Line Items] | ||||||||||||||
| Line Graph and Table Measure Name | QM U.S. Bond ETF (Based on Net Asset Value) | |||||||||||||
| T. Rowe Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||
| Account Value [Line Items] | ||||||||||||||
| Line Graph and Table Measure Name | Regulatory/Strategy Benchmark | |||||||||||||
| Account Value | $ 9,361 | $ 9,338 | $ 8,889 | $ 9,165 | $ 8,468 | $ 8,885 | $ 9,021 | $ 8,977 | $ 8,438 | $ 9,195 | $ 9,060 | $ 9,796 | $ 10,007 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 37 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | |
| C000229338 | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | QM U.S. Bond ETF (Based on Net Asset Value) | |
| Without Sales Load [Member] | C000229338 | ||
| Average Annual Return [Line Items] | ||
| Average Annual Return, Percent | 10.84% | (2.21%) |
| T. Rowe Index: Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Regulatory/Strategy Benchmark | |
| Average Annual Return, Percent | 10.55% | (2.11%) |
| Shareholder Report, Holdings (Details) - C000229338 | Oct. 31, 2024 |
| FR_91282CHK0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| FR_31418EBR0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.80% |
| FR_912810TS7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| FR_36179WQA9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| FR_3137HB2L7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| FR_01F0506B7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| FR_06051GJB6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| FR_95000U2S1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| FR_172967LD1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| FR_00206RKH4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| AAA Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.80% |
| AA Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.80% |
| A Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.30% |
| BBB Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.30% |
| BB Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| US Government Agency Securities Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 27.60% |
| US Treasury Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 30% |
