| Shareholder Report | 12 Months Ended |
| Jun. 30, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | LORD ABBETT US GOV & GOV SPONSORED ENTERPR MONEY MARKET FUND |
| Entity Central Index Key | 0000311635 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| C000018565 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund |
| Class Name | Class A |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund for the period of July 1, 2023 to June 30, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B18"><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: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $29 0.28% |
| Expenses Paid, Amount | $ 29 |
| Expense Ratio, Percent | 0.28% |
| AssetsNet | $ 1,091,578,390 |
| Holdings Count | Holding | 9 |
| Advisory Fees Paid, Amount | $ 1,394,360 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $1,091,578,390 # of Portfolio Holdings 9 Total Advisory Fees Paid $1,394,360 Weighted Average Maturity 37 Days Weighted Average Life of Investments 37 Days |
| Holdings [Text Block] | Portfolio Holdings Presented by Maturity % Footnote Reference 1 - 30 Days 43.5 % 31 - 60 Days 33.8 % 61 - 90 Days 9.1 % 91 - 180 Days 13.6 % Total 100.0% Footnote Description Footnote Represents percent of total investments |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| C000018567 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund |
| Class Name | Class C |
| Trading Symbol | LCCXX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund for the period of July 1, 2023 to June 30, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B37"><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: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $29 0.28% |
| Expenses Paid, Amount | $ 29 |
| Expense Ratio, Percent | 0.28% |
| AssetsNet | $ 1,091,578,390 |
| Holdings Count | Holding | 9 |
| Advisory Fees Paid, Amount | $ 1,394,360 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $1,091,578,390 # of Portfolio Holdings 9 Total Advisory Fees Paid $1,394,360 Weighted Average Maturity 37 Days Weighted Average Life of Investments 37 Days |
| Holdings [Text Block] | Portfolio Holdings Presented by Maturity % Footnote Reference 1 - 30 Days 43.5 % 31 - 60 Days 33.8 % 61 - 90 Days 9.1 % 91 - 180 Days 13.6 % Total 100.0% Footnote Description Footnote Represents percent of total investments |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| C000018564 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund |
| Class Name | Class I |
| Trading Symbol | LAYXX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett U.S. Government Sponsored Enterprises Money Market Fund for the period of July 1, 2023 to June 30, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B56"><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: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $29 0.28% |
| Expenses Paid, Amount | $ 29 |
| Expense Ratio, Percent | 0.28% |
| AssetsNet | $ 1,091,578,390 |
| Holdings Count | Holding | 9 |
| Advisory Fees Paid, Amount | $ 1,394,360 |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Total Net Assets $1,091,578,390 # of Portfolio Holdings 9 Total Advisory Fees Paid $1,394,360 Weighted Average Maturity 37 Days Weighted Average Life of Investments 37 Days |
| Holdings [Text Block] | Portfolio Holdings Presented by Maturity % Footnote Reference 1 - 30 Days 43.5 % 31 - 60 Days 33.8 % 61 - 90 Days 9.1 % 91 - 180 Days 13.6 % Total 100.0% Footnote Description Footnote Represents percent of total investments |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
