| Form N-CSR Cover | 6 Months Ended |
| Nov. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | DEUTSCHE DWS TAX FREE TRUST |
| Entity Central Index Key | 0000711600 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Nov. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | DEUTSCHE DWS TAX FREE TRUST |
| Entity Central Index Key | 0000711600 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| C000016867 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Intermediate Tax-Free Fund |
| Class Name | Class A |
| Trading Symbol | SZMAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about DWS Intermediate Tax-Free Fund (the "Fund") for the period June 1, 2024 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $38 0.74% Gross expense ratio as of the latest prospectus: 0.79%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.74% |
| AssetsNet | $ 782,055,017 |
| Holdings Count | Holding | 319 |
| Advisory Fees Paid, Amount | $ 1,191,596 |
| InvestmentCompanyPortfolioTurnover | 16% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 782,055,017 Number of Portfolio Holdings 319 Portfolio Turnover Rate (%) 16 Total Net Advisory Fees Paid ($) 1,191,596 Modified Duration to Worst 4.6 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 84% General Obligation Bonds 9% Lease Obligations 6% Variable Rate Demand Notes 2% Escrow to Maturity/Prerefunded Bonds 1% Other Assets and Liabilities, Net (2%) Total 100% Credit Quality Credit Rating % of Net Assets AAA 10% AA 44% A 26% BBB 14% BB 2% Not Rated 5% Top Five State Allocations Holdings % of Net Assets Texas 16% New York 11% Pennsylvania 8% California 7% Georgia 6% |
| C000016870 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Intermediate Tax-Free Fund |
| Class Name | Class C |
| Trading Symbol | SZMCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about DWS Intermediate Tax-Free Fund (the "Fund") for the period June 1, 2024 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B38"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $76 1.49% Gross expense ratio as of the latest prospectus: 1.57%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 76 |
| Expense Ratio, Percent | 1.49% |
| AssetsNet | $ 782,055,017 |
| Holdings Count | Holding | 319 |
| Advisory Fees Paid, Amount | $ 1,191,596 |
| InvestmentCompanyPortfolioTurnover | 16% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 782,055,017 Number of Portfolio Holdings 319 Portfolio Turnover Rate (%) 16 Total Net Advisory Fees Paid ($) 1,191,596 Modified Duration to Worst 4.6 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 84% General Obligation Bonds 9% Lease Obligations 6% Variable Rate Demand Notes 2% Escrow to Maturity/Prerefunded Bonds 1% Other Assets and Liabilities, Net (2%) Total 100% Credit Quality Credit Rating % of Net Assets AAA 10% AA 44% A 26% BBB 14% BB 2% Not Rated 5% Top Five State Allocations Holdings % of Net Assets Texas 16% New York 11% Pennsylvania 8% California 7% Georgia 6% |
| C000016871 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Intermediate Tax-Free Fund |
| Class Name | Class S |
| Trading Symbol | SCMTX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about DWS Intermediate Tax-Free Fund (the "Fund") for the period June 1, 2024 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B57"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class S $26 0.50% Gross expense ratio as of the latest prospectus: 0.63%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 26 |
| Expense Ratio, Percent | 0.50% |
| AssetsNet | $ 782,055,017 |
| Holdings Count | Holding | 319 |
| Advisory Fees Paid, Amount | $ 1,191,596 |
| InvestmentCompanyPortfolioTurnover | 16% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 782,055,017 Number of Portfolio Holdings 319 Portfolio Turnover Rate (%) 16 Total Net Advisory Fees Paid ($) 1,191,596 Modified Duration to Worst 4.6 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 84% General Obligation Bonds 9% Lease Obligations 6% Variable Rate Demand Notes 2% Escrow to Maturity/Prerefunded Bonds 1% Other Assets and Liabilities, Net (2%) Total 100% Credit Quality Credit Rating % of Net Assets AAA 10% AA 44% A 26% BBB 14% BB 2% Not Rated 5% Top Five State Allocations Holdings % of Net Assets Texas 16% New York 11% Pennsylvania 8% California 7% Georgia 6% |
| C000016872 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Intermediate Tax-Free Fund |
| Class Name | Institutional Class |
| Trading Symbol | SZMIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about DWS Intermediate Tax-Free Fund (the "Fund") for the period June 1, 2024 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B76"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $25 0.49% Gross expense ratio as of the latest prospectus: 0.55%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 25 |
| Expense Ratio, Percent | 0.49% |
| AssetsNet | $ 782,055,017 |
| Holdings Count | Holding | 319 |
| Advisory Fees Paid, Amount | $ 1,191,596 |
| InvestmentCompanyPortfolioTurnover | 16% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 782,055,017 Number of Portfolio Holdings 319 Portfolio Turnover Rate (%) 16 Total Net Advisory Fees Paid ($) 1,191,596 Modified Duration to Worst 4.6 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 84% General Obligation Bonds 9% Lease Obligations 6% Variable Rate Demand Notes 2% Escrow to Maturity/Prerefunded Bonds 1% Other Assets and Liabilities, Net (2%) Total 100% Credit Quality Credit Rating % of Net Assets AAA 10% AA 44% A 26% BBB 14% BB 2% Not Rated 5% Top Five State Allocations Holdings % of Net Assets Texas 16% New York 11% Pennsylvania 8% California 7% Georgia 6% |
| Shareholder Report, Holdings (Details) | Nov. 30, 2024 |
| C000016867 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000016867 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000016867 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000016867 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000016867 | Georgia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016867 | NR | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000016867 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000016867 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000016867 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26% |
| C000016867 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000016867 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016867 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 84% |
| C000016867 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000016867 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016867 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016867 | Escrow to Maturity/Prerefunded Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000016867 | Other Assets and Liabilities, Net | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000016870 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000016870 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000016870 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000016870 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000016870 | Georgia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016870 | NR | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000016870 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000016870 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000016870 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26% |
| C000016870 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000016870 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016870 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 84% |
| C000016870 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000016870 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016870 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016870 | Escrow to Maturity/Prerefunded Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000016870 | Other Assets and Liabilities, Net | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000016871 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000016871 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000016871 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000016871 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000016871 | Georgia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016871 | NR | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000016871 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000016871 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000016871 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26% |
| C000016871 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000016871 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016871 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 84% |
| C000016871 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000016871 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016871 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016871 | Escrow to Maturity/Prerefunded Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000016871 | Other Assets and Liabilities, Net | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000016872 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000016872 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000016872 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000016872 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000016872 | Georgia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016872 | NR | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000016872 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000016872 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000016872 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26% |
| C000016872 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000016872 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016872 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 84% |
| C000016872 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000016872 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000016872 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000016872 | Escrow to Maturity/Prerefunded Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000016872 | Other Assets and Liabilities, Net | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
