| Form N-CSR Cover | 6 Months Ended |
| Oct. 31, 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 | Oct. 31, 2024 |
| Shareholder Report | 6 Months Ended |
| Oct. 31, 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 | Oct. 31, 2024 |
| C000240570 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Emerging Markets ex-China Fund |
| Class Name | Institutional Shares |
| Trading Symbol | MAECX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Emerging Markets ex-China Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $42 0.83% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 42 |
| Expense Ratio, Percent | 0.83% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.74 % 20.28 % 14.82 % MSCI Emerging Markets ex-China Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.88 27.19 16.16 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 58,236,315 |
| Holdings Count | Holding | 132 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.8 % India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.5 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Indonesia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Philippines ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United Arab Emirates ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Poland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000240569 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Emerging Markets ex-China Fund |
| Class Name | Investor A Shares |
| Trading Symbol | MXCAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Emerging Markets ex-China Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $57 1.11% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.11% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.57 % 19.89 % 14.52 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.81 ) 13.60 10.70 MSCI Emerging Markets ex-China Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.88 27.19 16.16 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 58,236,315 |
| Holdings Count | Holding | 132 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.8 % India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.5 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Indonesia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Philippines ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United Arab Emirates ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Poland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000240571 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Emerging Markets ex-China Fund |
| Class Name | Class K Shares |
| Trading Symbol | MKECX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Emerging Markets ex-China Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 Class K Shares $41 0.81% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.81% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Class K Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.75 % 20.21 % 14.85 % MSCI Emerging Markets ex-China Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.88 27.19 16.16 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 58,236,315 |
| Holdings Count | Holding | 132 |
| InvestmentCompanyPortfolioTurnover | 38% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.8 % India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.5 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Indonesia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Philippines ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United Arab Emirates ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Poland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220890 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Emerging Markets Equity Fund |
| Class Name | Institutional Shares |
| Trading Symbol | BLZIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Emerging Markets Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $45 0.86% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.86% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.46 % 22.49 % 1.75 % MSCI Emerging Markets Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.59 25.32 2.77 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 11,245,616 |
| Holdings Count | Holding | 199 |
| InvestmentCompanyPortfolioTurnover | 89% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27.5 % Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.0 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.6 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 Malaysia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Saudi Arabia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Thailand ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 South Africa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (1.0 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220892 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Emerging Markets Equity Fund |
| Class Name | Investor A Shares |
| Trading Symbol | BLZAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Emerging Markets Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $58 1.11% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 58 |
| Expense Ratio, Percent | 1.11% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.37 % 22.33 % 1.50 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.69 15.91 0.21 MSCI Emerging Markets Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.59 25.32 2.77 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 11,245,616 |
| Holdings Count | Holding | 199 |
| InvestmentCompanyPortfolioTurnover | 89% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27.5 % Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.0 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.6 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 Malaysia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Saudi Arabia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Thailand ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 South Africa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (1.0 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220891 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Emerging Markets Equity Fund |
| Class Name | Class K Shares |
| Trading Symbol | BLZKX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Emerging Markets Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 Class K Shares $43 0.81% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 43 |
| Expense Ratio, Percent | 0.81% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Class K Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.48 % 22.54 % 1.79 % MSCI Emerging Markets Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.59 25.32 2.77 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 11,245,616 |
| Holdings Count | Holding | 199 |
| InvestmentCompanyPortfolioTurnover | 89% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27.5 % Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.0 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.9 South Korea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.6 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 Malaysia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Mexico ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Saudi Arabia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Thailand ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 South Africa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (1.0 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000242837 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Global Equity Fund |
| Class Name | Institutional Shares |
| Trading Symbol | MDSCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Global Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $38 0.71% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.71% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.96 % 35.44 % 20.34 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 18.38 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,532,202 |
| Holdings Count | Holding | 504 |
| InvestmentCompanyPortfolioTurnover | 50% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 67.0 % Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Canada ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.8 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000242836 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Global Equity Fund |
| Class Name | Investor A Shares |
| Trading Symbol | MASCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Global Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $51 0.96% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 51 |
| Expense Ratio, Percent | 0.96% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.80 % 35.14 % 20.05 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.93 28.04 15.38 MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 18.38 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,532,202 |
| Holdings Count | Holding | 504 |
| InvestmentCompanyPortfolioTurnover | 50% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 67.0 % Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Canada ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.8 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000242835 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Global Equity Fund |
| Class Name | Class K Shares |
| Trading Symbol | MKSCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Global Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 Class K Shares $35 0.66% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 35 |
| Expense Ratio, Percent | 0.66% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Class K Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.97 % 35.49 % 20.37 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 18.38 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,532,202 |
| Holdings Count | Holding | 504 |
| InvestmentCompanyPortfolioTurnover | 50% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 67.0 % Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Brazil ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 India ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Canada ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.8 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220887 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage International Equity Fund |
| Class Name | Institutional Shares |
| Trading Symbol | BRZIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage International Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $26 0.50% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 26 |
| Expense Ratio, Percent | 0.50% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.05 % 23.61 % 8.83 % MSCI EAFE Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.66 22.97 7.63 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,400,646 |
| Holdings Count | Holding | 308 |
| InvestmentCompanyPortfolioTurnover | 47% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.4 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.1 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.0 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.5 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Australia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.5 Netherlands ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (3.5 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220889 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage International Equity Fund |
| Class Name | Investor A Shares |
| Trading Symbol | BRZAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage International Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $39 0.75% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.75% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.90 % 23.23 % 8.56 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.61 ) 16.76 7.18 MSCI EAFE Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.66 22.97 7.63 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,400,646 |
| Holdings Count | Holding | 308 |
| InvestmentCompanyPortfolioTurnover | 47% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.4 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.1 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.0 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.5 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Australia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.5 Netherlands ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (3.5 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000220888 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage International Equity Fund |
| Class Name | Class K Shares |
| Trading Symbol | BRZKX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage International Equity Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 Class K Shares $23 0.45% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.45% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year Since Fund Inception Class K Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.06 % 23.67 % 8.89 % MSCI EAFE Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.66 22.97 7.63 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 12,400,646 |
| Holdings Count | Holding | 308 |
| InvestmentCompanyPortfolioTurnover | 47% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.4 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.1 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.0 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.5 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Australia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.5 Netherlands ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Spain ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 Other Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (3.5 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000004878 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Tactical Opportunities Fund |
| Class Name | Institutional Shares |
| Trading Symbol | PBAIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Tactical Opportunities Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $39 0.76% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.76% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.41 % 6.74 % 4.90 % 3.93 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 11.08 9.06 Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.60 5.78 1.29 1.32 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.66 5.39 2.36 1.69 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.39 12.11 3.95 3.41 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,170,192,223 |
| Holdings Count | Holding | 1,069 |
| InvestmentCompanyPortfolioTurnover | 43% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,170,192,223 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,069 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 43% |
| Holdings [Text Block] | Ten largest holdings Portfolio composition Security Footnote Reference Percent of Net Assets Apple, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 % Microsoft Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 NVIDIA Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Amazon.com, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Meta Platforms, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Alphabet, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Walmart, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Alphabet, Inc., Class C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Costco Wholesale Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Berkshire Hathaway, Inc., Class B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Asset Type Percent of Net Assets Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 68.0 % Warrants ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Rights ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Other Interests ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.7 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Footnote Description Footnote (a) Excludes short-term securities. Footnote (b) Rounds to less than 0.1%. |
| C000004879 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Tactical Opportunities Fund |
| Class Name | Service Shares |
| Trading Symbol | PCBSX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Tactical Opportunities Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $53 1.04% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 1.04% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Service Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.35 % 6.48 % 4.63 % 3.65 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 11.08 9.06 Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.60 5.78 1.29 1.32 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.66 5.39 2.36 1.69 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.39 12.11 3.95 3.41 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,170,192,223 |
| Holdings Count | Holding | 1,069 |
| InvestmentCompanyPortfolioTurnover | 43% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,170,192,223 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,069 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 43% |
| Holdings [Text Block] | Ten largest holdings Portfolio composition Security Footnote Reference Percent of Net Assets Apple, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 % Microsoft Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 NVIDIA Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Amazon.com, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Meta Platforms, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Alphabet, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Walmart, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Alphabet, Inc., Class C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Costco Wholesale Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Berkshire Hathaway, Inc., Class B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Asset Type Percent of Net Assets Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 68.0 % Warrants ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Rights ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Other Interests ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.7 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Footnote Description Footnote (a) Excludes short-term securities. Footnote (b) Rounds to less than 0.1%. |
| C000004880 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Tactical Opportunities Fund |
| Class Name | Investor A Shares |
| Trading Symbol | PCBAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Tactical Opportunities Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $53 1.05% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 1.05% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.29 % 6.39 % 4.61 % 3.62 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (4.03 ) 0.80 3.48 3.07 MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 11.08 9.06 Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.60 5.78 1.29 1.32 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.66 5.39 2.36 1.69 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.39 12.11 3.95 3.41 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,170,192,223 |
| Holdings Count | Holding | 1,069 |
| InvestmentCompanyPortfolioTurnover | 43% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,170,192,223 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,069 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 43% |
| Holdings [Text Block] | Ten largest holdings Portfolio composition Security Footnote Reference Percent of Net Assets Apple, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 % Microsoft Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 NVIDIA Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Amazon.com, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Meta Platforms, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Alphabet, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Walmart, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Alphabet, Inc., Class C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Costco Wholesale Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Berkshire Hathaway, Inc., Class B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Asset Type Percent of Net Assets Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 68.0 % Warrants ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Rights ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Other Interests ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.7 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Footnote Description Footnote (a) Excludes short-term securities. Footnote (b) Rounds to less than 0.1%. |
| C000004882 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Tactical Opportunities Fund |
| Class Name | Investor C Shares |
| Trading Symbol | BRBCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Tactical Opportunities Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 $89 1.76% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 89 |
| Expense Ratio, Percent | 1.76% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Investor C Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.97 % 5.70 % 3.85 % 3.04 % Investor C Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.03 ) 4.71 3.85 3.04 MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 11.08 9.06 Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.60 5.78 1.29 1.32 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.66 5.39 2.36 1.69 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.39 12.11 3.95 3.41 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,170,192,223 |
| Holdings Count | Holding | 1,069 |
| InvestmentCompanyPortfolioTurnover | 43% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,170,192,223 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,069 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 43% |
| Holdings [Text Block] | Ten largest holdings Portfolio composition Security Footnote Reference Percent of Net Assets Apple, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 % Microsoft Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 NVIDIA Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Amazon.com, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Meta Platforms, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Alphabet, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Walmart, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Alphabet, Inc., Class C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Costco Wholesale Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Berkshire Hathaway, Inc., Class B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Asset Type Percent of Net Assets Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 68.0 % Warrants ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Rights ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Other Interests ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.7 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Footnote Description Footnote (a) Excludes short-term securities. Footnote (b) Rounds to less than 0.1%. |
| C000173964 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Tactical Opportunities Fund |
| Class Name | Class K Shares |
| Trading Symbol | PBAKX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Tactical Opportunities Fund (the “Fund”) for the period of May 1, 2024 to October 31, 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 |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| 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 Class K Shares $32 0.63% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 32 |
| Expense Ratio, Percent | 0.63% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Class K Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.48 % 6.83 % 5.04 % 3.97 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.87 32.79 11.08 9.06 Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.60 5.78 1.29 1.32 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.66 5.39 2.36 1.69 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.39 12.11 3.95 3.41 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,170,192,223 |
| Holdings Count | Holding | 1,069 |
| InvestmentCompanyPortfolioTurnover | 43% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,170,192,223 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,069 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 43% |
| Holdings [Text Block] | Ten largest holdings Portfolio composition Security Footnote Reference Percent of Net Assets Apple, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 % Microsoft Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 NVIDIA Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Amazon.com, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Meta Platforms, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Alphabet, Inc., Class A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Walmart, Inc. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Alphabet, Inc., Class C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Costco Wholesale Corp. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Berkshire Hathaway, Inc., Class B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Asset Type Percent of Net Assets Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 68.0 % Warrants ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Rights ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Other Interests ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ - Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.7 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Footnote Description Footnote (a) Excludes short-term securities. Footnote (b) Rounds to less than 0.1%. |
| Shareholder Report, Line Graph (Details) | 6 Months Ended |
| Oct. 31, 2024 | |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI Emerging Markets Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI EAFE Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI EAFE Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI EAFE Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | MSCI All Country World Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index |
| Shareholder Report, Average Annual Return (Details) | 6 Months Ended | 12 Months Ended | 16 Months Ended | 19 Months Ended | 50 Months Ended | 60 Months Ended | 120 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000240569 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | (2.81%) | 13.60% | 10.70% | ||||
| C000220892 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.69% | 15.91% | 0.21% | ||||
| C000242836 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.93% | 28.04% | 15.38% | ||||
| C000220889 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | (0.61%) | 16.76% | 7.18% | ||||
| C000004880 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | (4.03%) | 0.80% | 3.48% | 3.07% | |||
| C000004882 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | (0.03%) | 4.71% | 3.85% | 3.04% | |||
| Without Sales Load [Member] | C000240570 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.74% | 20.28% | 14.82% | ||||
| Without Sales Load [Member] | C000240569 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.57% | 19.89% | 14.52% | ||||
| Without Sales Load [Member] | C000240571 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.75% | 20.21% | 14.85% | ||||
| Without Sales Load [Member] | C000220890 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 8.46% | 22.49% | 1.75% | ||||
| Without Sales Load [Member] | C000220892 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 8.37% | 22.33% | 1.50% | ||||
| Without Sales Load [Member] | C000220891 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 8.48% | 22.54% | 1.79% | ||||
| Without Sales Load [Member] | C000242837 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.96% | 35.44% | 20.34% | ||||
| Without Sales Load [Member] | C000242836 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.80% | 35.14% | 20.05% | ||||
| Without Sales Load [Member] | C000242835 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.97% | 35.49% | 20.37% | ||||
| Without Sales Load [Member] | C000220887 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.05% | 23.61% | 8.83% | ||||
| Without Sales Load [Member] | C000220889 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 4.90% | 23.23% | 8.56% | ||||
| Without Sales Load [Member] | C000220888 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.06% | 23.67% | 8.89% | ||||
| Without Sales Load [Member] | C000004878 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.41% | 6.74% | 4.90% | 3.93% | |||
| Without Sales Load [Member] | C000004879 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.35% | 6.48% | 4.63% | 3.65% | |||
| Without Sales Load [Member] | C000004880 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | 6.39% | 4.61% | 3.62% | |||
| Without Sales Load [Member] | C000004882 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 0.97% | 5.70% | 3.85% | 3.04% | |||
| Without Sales Load [Member] | C000173964 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.48% | 6.83% | 5.04% | 3.97% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index | ||||||
| Average Annual Return, Percent | 5.88% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 27.19% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 16.16% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index | ||||||
| Average Annual Return, Percent | 5.88% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 27.19% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 16.16% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets ex-China Index | ||||||
| Average Annual Return, Percent | 5.88% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 27.19% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 16.16% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index | ||||||
| Average Annual Return, Percent | 8.59% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 25.32% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.77% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index | ||||||
| Average Annual Return, Percent | 8.59% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 25.32% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.77% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index | ||||||
| Average Annual Return, Percent | 8.59% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 25.32% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.77% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 18.38% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 18.38% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 18.38% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI EAFE Index | ||||||
| Average Annual Return, Percent | 3.66% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 22.97% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 7.63% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI EAFE Index | ||||||
| Average Annual Return, Percent | 3.66% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 22.97% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 7.63% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI EAFE Index | ||||||
| Average Annual Return, Percent | 3.66% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 22.97% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 7.63% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return 5 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.08% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 9.06% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return 5 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.08% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 9.06% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return 5 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.08% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 9.06% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return 5 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.08% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 9.06% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||
| Average Annual Return, Percent | 10.87% | ||||||
| FR Notes - Benchmark total return 1 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 32.79% | ||||||
| FR Notes - Benchmark total return 5 year | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 11.08% | ||||||
| FR Notes - Benchmark total return inception w/o sales charge | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 9.06% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 3.60% | ||||||
| FR Notes - Benchmark total return 1 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.78% | ||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | ||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.32% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||||
| Average Annual Return, Percent | 2.66% | ||||||
| FR Notes - Benchmark total return 1 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 5 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.36% | ||||||
| FR Notes - Benchmark total return 10 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.69% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 1 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 12.11% | ||||||
| FR Notes - Benchmark total return 5 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.95% | ||||||
| FR Notes - Benchmark total return 10 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.41% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 3.60% | ||||||
| FR Notes - Benchmark total return 1 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.78% | ||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | ||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.32% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||||
| Average Annual Return, Percent | 2.66% | ||||||
| FR Notes - Benchmark total return 1 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 5 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.36% | ||||||
| FR Notes - Benchmark total return 10 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.69% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 1 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 12.11% | ||||||
| FR Notes - Benchmark total return 5 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.95% | ||||||
| FR Notes - Benchmark total return 10 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.41% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 3.60% | ||||||
| FR Notes - Benchmark total return 1 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.78% | ||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | ||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.32% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||||
| Average Annual Return, Percent | 2.66% | ||||||
| FR Notes - Benchmark total return 1 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 5 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.36% | ||||||
| FR Notes - Benchmark total return 10 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.69% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 1 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 12.11% | ||||||
| FR Notes - Benchmark total return 5 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.95% | ||||||
| FR Notes - Benchmark total return 10 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.41% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 3.60% | ||||||
| FR Notes - Benchmark total return 1 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.78% | ||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | ||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.32% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||||
| Average Annual Return, Percent | 2.66% | ||||||
| FR Notes - Benchmark total return 1 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 5 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.36% | ||||||
| FR Notes - Benchmark total return 10 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.69% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 1 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 12.11% | ||||||
| FR Notes - Benchmark total return 5 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.95% | ||||||
| FR Notes - Benchmark total return 10 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.41% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 3.60% | ||||||
| FR Notes - Benchmark total return 1 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.78% | ||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.29% | ||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.32% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||||
| Average Annual Return, Percent | 2.66% | ||||||
| FR Notes - Benchmark total return 1 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 5 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 2.36% | ||||||
| FR Notes - Benchmark total return 10 year - 3 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 1.69% | ||||||
| FR Notes - Benchmark total return 6 months w/o sales charge - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Line Graph and Table Measure Name | 25% MSCI ACWI Index/75% Bloomberg 1-3 Year Treasury Bond Index | ||||||
| Average Annual Return, Percent | 5.39% | ||||||
| FR Notes - Benchmark total return 1 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 12.11% | ||||||
| FR Notes - Benchmark total return 5 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.95% | ||||||
| FR Notes - Benchmark total return 10 year - 4 | |||||||
| Average Annual Return [Line Items] | |||||||
| Average Annual Return, Percent | 3.41% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000240570 | Other Assets Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000240570 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000240570 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.80% |
| C000240570 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.90% |
| C000240570 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000240570 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000240570 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000240570 | Indonesia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000240570 | Philippines | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240570 | United Arab Emirates | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240570 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240570 | Poland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240570 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000240569 | Other Assets Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000240569 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000240569 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.80% |
| C000240569 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.90% |
| C000240569 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000240569 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000240569 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000240569 | Indonesia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000240569 | Philippines | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240569 | United Arab Emirates | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240569 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240569 | Poland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240569 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000240571 | Other Assets Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000240571 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000240571 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.80% |
| C000240571 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.90% |
| C000240571 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000240571 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000240571 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000240571 | Indonesia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000240571 | Philippines | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240571 | United Arab Emirates | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240571 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000240571 | Poland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240571 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000220890 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000220890 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000220890 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20% |
| C000220890 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000220890 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.60% |
| C000220890 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000220890 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000220890 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.50% |
| C000220890 | Malaysia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000220890 | Saudi Arabia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000220890 | Thailand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000220890 | South Africa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000220890 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000220892 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000220892 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000220892 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20% |
| C000220892 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000220892 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.60% |
| C000220892 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000220892 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000220892 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.50% |
| C000220892 | Malaysia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000220892 | Saudi Arabia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000220892 | Thailand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000220892 | South Africa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000220892 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000220891 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000220891 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000220891 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20% |
| C000220891 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000220891 | South Korea | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.60% |
| C000220891 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000220891 | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000220891 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.50% |
| C000220891 | Malaysia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000220891 | Saudi Arabia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000220891 | Thailand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000220891 | South Africa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000220891 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000242837 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000242837 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000242837 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242837 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242837 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 67% |
| C000242837 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000242837 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000242837 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000242837 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000242837 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242837 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000242837 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000242837 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000242836 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000242836 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000242836 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242836 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242836 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 67% |
| C000242836 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000242836 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000242836 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000242836 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000242836 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242836 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000242836 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000242836 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000242835 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000242835 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000242835 | India | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242835 | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242835 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 67% |
| C000242835 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000242835 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000242835 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000242835 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000242835 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000242835 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000242835 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000242835 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000220887 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.50%) |
| C000220887 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000220887 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000220887 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.40% |
| C000220887 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000220887 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| C000220887 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000220887 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000220887 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000220887 | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000220887 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000220887 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000220887 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000220889 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.50%) |
| C000220889 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000220889 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000220889 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.40% |
| C000220889 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000220889 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| C000220889 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000220889 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000220889 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000220889 | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000220889 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000220889 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000220889 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000220888 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.50%) |
| C000220888 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000220888 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000220888 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.40% |
| C000220888 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000220888 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| C000220888 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000220888 | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000220888 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000220888 | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000220888 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000220888 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000220888 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000004878 | Apple, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000004878 | Microsoft Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004878 | NVIDIA Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004878 | Amazon.com, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000004878 | Meta Platforms, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000004878 | Alphabet, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000004878 | Walmart, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004878 | Alphabet, Inc., C, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004878 | Costco Wholesale Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000004878 | Berkshire Hathaway, Inc., B, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000004878 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000004878 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.70% |
| C000004878 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 68% |
| C000004878 | Warrants | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004878 | Rights | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004878 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004878 | Other Interests | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004879 | Apple, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000004879 | Microsoft Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004879 | NVIDIA Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004879 | Amazon.com, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000004879 | Meta Platforms, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000004879 | Alphabet, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000004879 | Walmart, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004879 | Alphabet, Inc., C, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004879 | Costco Wholesale Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000004879 | Berkshire Hathaway, Inc., B, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000004879 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000004879 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.70% |
| C000004879 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 68% |
| C000004879 | Warrants | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004879 | Rights | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004879 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004879 | Other Interests | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004880 | Apple, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000004880 | Microsoft Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004880 | NVIDIA Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004880 | Amazon.com, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000004880 | Meta Platforms, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000004880 | Alphabet, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000004880 | Walmart, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004880 | Alphabet, Inc., C, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004880 | Costco Wholesale Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000004880 | Berkshire Hathaway, Inc., B, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000004880 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000004880 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.70% |
| C000004880 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 68% |
| C000004880 | Warrants | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004880 | Rights | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004880 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004880 | Other Interests | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004882 | Apple, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000004882 | Microsoft Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004882 | NVIDIA Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000004882 | Amazon.com, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000004882 | Meta Platforms, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000004882 | Alphabet, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000004882 | Walmart, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004882 | Alphabet, Inc., C, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000004882 | Costco Wholesale Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000004882 | Berkshire Hathaway, Inc., B, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000004882 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000004882 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.70% |
| C000004882 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 68% |
| C000004882 | Warrants | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004882 | Rights | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004882 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000004882 | Other Interests | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000173964 | Apple, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000173964 | Microsoft Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000173964 | NVIDIA Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000173964 | Amazon.com, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000173964 | Meta Platforms, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000173964 | Alphabet, Inc., A, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000173964 | Walmart, Inc., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000173964 | Alphabet, Inc., C, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000173964 | Costco Wholesale Corp., , , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000173964 | Berkshire Hathaway, Inc., B, , 0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000173964 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000173964 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.70% |
| C000173964 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 68% |
| C000173964 | Warrants | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000173964 | Rights | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000173964 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000173964 | Other Interests | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
