v3.25.4
Expense Example
Oct. 31, 2025
USD ($)
Morgan Stanley Institutional Liquidity Funds - Administrative Class Portfolios | MSILF Money Market Portfolio | Administrative Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 36
Expense Example, with Redemption, 3 Years 119
Expense Example, with Redemption, 5 Years 210
Expense Example, with Redemption, 10 Years 477
Morgan Stanley Institutional Liquidity Funds - Administrative Class Portfolios | MSILF Tax-Exempt Portfolio | Administrative Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 36
Expense Example, with Redemption, 3 Years 143
Expense Example, with Redemption, 5 Years 260
Expense Example, with Redemption, 10 Years 602
Morgan Stanley Institutional Liquidity Funds - Advisory Class Portfolios | MSILF Money Market Portfolio | Advisory Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 46
Expense Example, with Redemption, 3 Years 151
Expense Example, with Redemption, 5 Years 266
Expense Example, with Redemption, 10 Years 601
Morgan Stanley Institutional Liquidity Funds - Advisory Class Portfolios | MSILF Tax-Exempt Portfolio | Advisory Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 46
Expense Example, with Redemption, 3 Years 175
Expense Example, with Redemption, 5 Years 315
Expense Example, with Redemption, 10 Years 725
Morgan Stanley Institutional Liquidity Funds - Cash Management Class Portfolios | MSILF Money Market Portfolio | Cash Management Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 36
Expense Example, with Redemption, 3 Years 119
Expense Example, with Redemption, 5 Years 210
Expense Example, with Redemption, 10 Years 477
Morgan Stanley Institutional Liquidity Funds - Cash Management Class Portfolios | MSILF Tax-Exempt Portfolio | Cash Management Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 36
Expense Example, with Redemption, 3 Years 143
Expense Example, with Redemption, 5 Years 260
Expense Example, with Redemption, 10 Years 602
Morgan Stanley Institutional Liquidity Funds - Investor Class Portfolios | MSILF Money Market Portfolio | Investor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 182
Expense Example, with Redemption, 10 Years 415
Morgan Stanley Institutional Liquidity Funds - Investor Class Portfolios | MSILF Tax-Exempt Portfolio | Investor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 127
Expense Example, with Redemption, 5 Years 232
Expense Example, with Redemption, 10 Years 541
Morgan Stanley Institutional Liquidity Funds - Participant Class Portfolios | MSILF Money Market Portfolio | Participant Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 72
Expense Example, with Redemption, 3 Years 230
Expense Example, with Redemption, 5 Years 403
Expense Example, with Redemption, 10 Years 904
Morgan Stanley Institutional Liquidity Funds - Participant Class Portfolios | MSILF Tax-Exempt Portfolio | Participant Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 72
Expense Example, with Redemption, 3 Years 254
Expense Example, with Redemption, 5 Years 452
Expense Example, with Redemption, 10 Years 1,024
Morgan Stanley Institutional Liquidity Funds - Select Class Portfolios | MSILF Money Market Portfolio | Select Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 325
Expense Example, with Redemption, 5 Years 566
Expense Example, with Redemption, 10 Years 1,257
Morgan Stanley Institutional Liquidity Funds - Select Class Portfolios | MSILF Tax-Exempt Portfolio | Select Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 348
Expense Example, with Redemption, 5 Years 614
Expense Example, with Redemption, 10 Years 1,374
Morgan Stanley Institutional Liquidity Funds - Wealth Class Portfolios | MSILF Money Market Portfolio | Wealth Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 71
Expense Example, with Redemption, 5 Years 126
Expense Example, with Redemption, 10 Years 290
Morgan Stanley Institutional Liquidity Funds - Wealth Class Portfolios | MSILF Tax-Exempt Portfolio | Wealth Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 95
Expense Example, with Redemption, 5 Years 177
Expense Example, with Redemption, 10 Years 417
Morgan Stanley Institutional Liquidity Funds - Wealth S Class Portfolios | MSILF Money Market Portfolio | Wealth S Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 26
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 154
Expense Example, with Redemption, 10 Years 353
Morgan Stanley Institutional Liquidity Funds - Wealth S Class Portfolios | MSILF Tax-Exempt Portfolio | Wealth S Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 26
Expense Example, with Redemption, 3 Years 111
Expense Example, with Redemption, 5 Years 205
Expense Example, with Redemption, 10 Years 479
Morgan Stanley Institutional Liquidity Funds - Impact Partner Class Portfolios | MSILF Money Market Portfolio | Impact Partner Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 71
Expense Example, with Redemption, 5 Years 126
Expense Example, with Redemption, 10 Years 290
Morgan Stanley Institutional Liquidity Funds - Advisor Class Portfolios | MSILF Money Market Portfolio | Advisor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 71
Expense Example, with Redemption, 5 Years 126
Expense Example, with Redemption, 10 Years 290
Morgan Stanley Institutional Liquidity Funds - Advisor Class Portfolios | MSILF Tax-Exempt Portfolio | Advisor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 95
Expense Example, with Redemption, 5 Years 177
Expense Example, with Redemption, 10 Years $ 417