| Form N-CSR Cover | 6 Months Ended |
| Aug. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Edward Jones Money Market Fund |
| Entity Central Index Key | 0000314650 |
| Document Period End Date | Aug. 31, 2024 |
| Shareholder Report | 6 Months Ended |
| Aug. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Edward Jones Money Market Fund |
| Entity Central Index Key | 0000314650 |
| Document Period End Date | Aug. 31, 2024 |
| C000024632 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | EDWARD JONES MONEY MARKET FUND |
| Class Name | INVESTMENT SHARES |
| Trading Symbol | JNSXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Edward Jones Money Market Fund (the “Fund”) for the period of March 1, 2024 to August 31, 2024 (the “reporting period”). |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.edwardjones.com/moneymarket. You can also request this information by contacting us at |
| Additional Information Phone Number | 1‑800‑441‑2357 |
| Additional Information Website | www.edwardjones.com/moneymarket |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Cost of a investment Cost paid as a Investment Shares $ 36 0.71% |
| Expenses Paid, Amount | $ 36 |
| Expense Ratio, Percent | 0.71% |
| Net Assets | $ 29,923,626,000 |
| Holdings Count | Holding | 148 |
| Advisory Fees Paid, Amount | $ 29,778,000 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics: Total Net Assets (000s) $ 29,923,626 Number of Portfolio Holdings 148 Total Advisory Fee Paid (000s) $ 29,778 |
| Holdings [Text Block] | Graphical Representation of Holdings (as a percentage of net assets) Portfolio Composition by Effective Maturity 1 Portfolio Composition by Security Type 3 1 Effective maturity is determined in accordance with the requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended, which regulates money market funds. 2 Assets, other than investments in securities, less liabilities. 3 See the Fund’s Prospectus and Statement of Additional Information for descriptions of the principal types of securities in which the Fund invests. |
| C000024633 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | EDWARD JONES MONEY MARKET FUND |
| Class Name | RETIREMENT SHARES |
| Trading Symbol | JRSXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Edward Jones Money Market Fund (the “Fund”) for the period of March 1, 2024 to August 31, 2024 (the “reporting period”). |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.edwardjones.com/moneymarket. You can also request this information by contacting us at |
| Additional Information Phone Number | 1-800-441-2357 |
| Additional Information Website | www.edwardjones.com/moneymarket |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Cost of a investment Cost paid as a Retirement Shares $ 37 0.72% |
| Expenses Paid, Amount | $ 37 |
| Expense Ratio, Percent | 0.72% |
| Net Assets | $ 29,923,626,000 |
| Holdings Count | Holding | 148 |
| Advisory Fees Paid, Amount | $ 29,778,000 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics: Total Net Assets (000s) $ 29,923,626 Number of Portfolio Holdings 148 Total Advisory Fee Paid (000s) $ 29,778 |
| Holdings [Text Block] | Graphical Representation of Holdings (as a percentage of net assets) Portfolio Composition by Effective Maturity 1 Portfolio Composition by Security Type 3 1 Effective maturity is determined in accordance with the requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended, which regulates money market funds. 2 Assets, other than investments in securities, less liabilities. 3 See the Fund’s Prospectus and Statement of Additional Information for descriptions of the principal types of securities in which the Fund invests. |
| Shareholder Report, Holdings (Details) | Aug. 31, 2024 | |
| C000024632 [Member] | One To 7 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 70.34% | [1] |
| C000024632 [Member] | Eight To 30 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.35% | [1] |
| C000024632 [Member] | Ninety One To 180 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.38% | [1] |
| C000024632 [Member] | One Hundred Eighty One Plus Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7% | [1] |
| C000024632 [Member] | Other Assets And Liabilities Net Maturity [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.93% | [1],[2] |
| C000024632 [Member] | Thirty One To 90 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12% | [1] |
| C000024632 [Member] | Repurchase Agreements [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 56.57% | [3] |
| C000024632 [Member] | US Government Corporations and Agencies Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.56% | [3] |
| C000024632 [Member] | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 21.94% | [3] |
| C000024632 [Member] | Other Assets And Liabilities Net [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.93% | [2],[3] |
| C000024633 [Member] | One To 7 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 70.34% | [4] |
| C000024633 [Member] | Eight To 30 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.35% | [4] |
| C000024633 [Member] | Ninety One To 180 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.38% | [4] |
| C000024633 [Member] | One Hundred Eighty One Plus Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7% | [4] |
| C000024633 [Member] | Other Assets And Liabilities Net Maturity [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.93% | [4],[5] |
| C000024633 [Member] | Thirty One To 90 Days [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12% | [4] |
| C000024633 [Member] | Repurchase Agreements [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 56.57% | [6] |
| C000024633 [Member] | US Government Corporations and Agencies Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.56% | [6] |
| C000024633 [Member] | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 21.94% | [6] |
| C000024633 [Member] | Other Assets And Liabilities Net [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.93% | [5],[6] |
| [1]Effective maturity is determined in accordance with the requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended, which regulates money market funds.[2]Assets, other than investments in securities, less liabilities.[3]See the Fund’s Prospectus and Statement of Additional Information for descriptions of the principal types of securities in which the Fund invests.[4]Effective maturity is determined in accordance with the requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended, which regulates money market funds.[5]Assets, other than investments in securities, less liabilities.[6]See the Fund’s Prospectus and Statement of Additional Information for descriptions of the principal types of securities in which the Fund invests. | ||
