BlackRock 20/80 Target Allocation Fund, Investor A (BACPX)
Company Profile
| Form N-CSR Cover | 6 Months Ended |
| Sep. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds |
| Entity Central Index Key | 0000844779 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Sep. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds |
| Entity Central Index Key | 0000844779 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| C000004025 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Wealth Liquid Environmentally Aware Fund |
| Class Name | Institutional Shares |
| Trading Symbol | PNIXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Wealth Liquid Environmentally Aware Fund (the “Fund”) for the period of April 1, 2024 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | (800) 441-7762 |
| Additional Information Website | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (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 Institutional Shares $10 0.20% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.20% |
| AssetsNet | $ 3,882,919,867 |
| Holdings Count | Holding | 165 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $3,882,919,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 165 Current seven-day yields as of September 30, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.89% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.89% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Net Assets Commercial Paper ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.4 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.8 Certificates of Deposit ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Time Deposits ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 |
| C000004027 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Wealth Liquid Environmentally Aware Fund |
| Class Name | Investor A Shares |
| Trading Symbol | PINXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Wealth Liquid Environmentally Aware Fund (the “Fund”) for the period of April 1, 2024 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | (800) 441-7762 |
| Additional Information Website | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span>" id="sjs-B36"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (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 Investor A Shares $25 0.49% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 25 |
| Expense Ratio, Percent | 0.49% |
| AssetsNet | $ 3,882,919,867 |
| Holdings Count | Holding | 165 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $3,882,919,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 165 Current seven-day yields as of September 30, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.61% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.61% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Net Assets Commercial Paper ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.4 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.8 Certificates of Deposit ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Time Deposits ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 |
| C000004029 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Wealth Liquid Environmentally Aware Fund |
| Class Name | Investor C Shares |
| Trading Symbol | BMCXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Wealth Liquid Environmentally Aware Fund (the “Fund”) for the period of April 1, 2024 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | (800) 441-7762 |
| Additional Information Website | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span>" id="sjs-B53"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (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 Investor C Shares $66 1.30% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 66 |
| Expense Ratio, Percent | 1.30% |
| AssetsNet | $ 3,882,919,867 |
| Holdings Count | Holding | 165 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $3,882,919,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 165 Current seven-day yields as of September 30, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.79% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.79% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Net Assets Commercial Paper ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.4 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.8 Certificates of Deposit ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Time Deposits ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 |
| C000213745 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Wealth Liquid Environmentally Aware Fund |
| Class Name | Premier Shares |
| Trading Symbol | BMMXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Wealth Liquid Environmentally Aware Fund (the “Fund”) for the period of April 1, 2024 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | (800) 441-7762 |
| Additional Information Website | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span>" id="sjs-B70"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (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 Premier Shares $10 0.20% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.20% |
| AssetsNet | $ 3,882,919,867 |
| Holdings Count | Holding | 165 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $3,882,919,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 165 Current seven-day yields as of September 30, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.89% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.89% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Net Assets Commercial Paper ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.4 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.8 Certificates of Deposit ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Time Deposits ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 |
| C000004026 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Wealth Liquid Environmentally Aware Fund |
| Class Name | Service Shares |
| Trading Symbol | PNPXX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Wealth Liquid Environmentally Aware Fund (the “Fund”) for the period of April 1, 2024 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | (800) 441-7762 |
| Additional Information Website | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span>" id="sjs-B87"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify;">blackrock.com/fundreports</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last six months? (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 Service Shares $24 0.47% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 24 |
| Expense Ratio, Percent | 0.47% |
| AssetsNet | $ 3,882,919,867 |
| Holdings Count | Holding | 165 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $3,882,919,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 165 Current seven-day yields as of September 30, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.62% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.62% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Net Assets Commercial Paper ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.4 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.8 Certificates of Deposit ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Time Deposits ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 |
| Shareholder Report, Holdings (Details) | Sep. 30, 2024 |
| C000004025 | Commercial Paper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 38.40% |
| C000004025 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000004025 | Certificates of Deposit | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000004025 | Time Deposits | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000004025 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000004025 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000004025 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000004025 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000004027 | Commercial Paper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 38.40% |
| C000004027 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000004027 | Certificates of Deposit | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000004027 | Time Deposits | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000004027 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000004027 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000004027 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000004027 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000004029 | Commercial Paper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 38.40% |
| C000004029 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000004029 | Certificates of Deposit | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000004029 | Time Deposits | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000004029 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000004029 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000004029 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000004029 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000213745 | Commercial Paper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 38.40% |
| C000213745 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000213745 | Certificates of Deposit | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000213745 | Time Deposits | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000213745 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000213745 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000213745 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000213745 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000004026 | Commercial Paper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 38.40% |
| C000004026 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000004026 | Certificates of Deposit | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000004026 | Time Deposits | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000004026 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000004026 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000004026 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000004026 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |