| 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 | |
| C000103258 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Advantage Emerging Markets Fund | |
| Class Name | Institutional Shares | |
| Trading Symbol | BLSIX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Institutional Shares $ 0.85 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 44 | |
| Expense Ratio, Percent | 0.85% | [1] |
| 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 1 Year 5 Years 10 Years Institutional Shares 6.95 % 21.42 % 2.61 % 1.39 % MSCI Emerging Markets Index 8.59 25.32 3.93 3.43 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 95,377,157 | |
| Holdings Count | Holding | 231 | |
| Investment Company Portfolio Turnover | 92% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 231 Portfolio Turnover Rate 92 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of China 26.4 % Taiwan 18.1 % India 15.8 % South Korea 10.5 % United States 6.3 % Brazil 5.4 % Mexico 2.9 % Saudi Arabia 2.7 % Malaysia 2.3 % Indonesia 2.0 % Other # 7.3 % Other Assets Less Liabilities 0.3 % # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000103256 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Advantage Emerging Markets Fund | |
| Class Name | Investor A Shares | |
| Trading Symbol | BLSAX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Investor A Shares $ 1.15 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 60 | |
| Expense Ratio, Percent | 1.15% | [2] |
| 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 1 Year 5 Years 10 Years Investor A Shares 6.88 % 21.15 % 2.29 % 1.12 % Investor A Shares (with sales charge) 1.27 14.79 1.19 0.57 MSCI Emerging Markets Index 8.59 25.32 3.93 3.43 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 95,377,157 | |
| Holdings Count | Holding | 231 | |
| Investment Company Portfolio Turnover | 92% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 231 Portfolio Turnover Rate 92 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of China 26.4 % Taiwan 18.1 % India 15.8 % South Korea 10.5 % United States 6.3 % Brazil 5.4 % Mexico 2.9 % Saudi Arabia 2.7 % Malaysia 2.3 % Indonesia 2.0 % Other # 7.3 % Other Assets Less Liabilities 0.3 % # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000103257 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Advantage Emerging Markets Fund | |
| Class Name | Investor C Shares | |
| Trading Symbol | BLSCX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Investor C Shares $ 1.90 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 99 | |
| Expense Ratio, Percent | 1.90% | [3] |
| 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 1 Year 5 Years 10 Years Investor C Shares 6.48 % 20.29 % 1.53 % 0.50 % Investor C Shares (with sales charge) 5.48 19.29 1.53 0.50 MSCI Emerging Markets Index 8.59 25.32 3.93 3.43 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 95,377,157 | |
| Holdings Count | Holding | 231 | |
| Investment Company Portfolio Turnover | 92% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 231 Portfolio Turnover Rate 92 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of China 26.4 % Taiwan 18.1 % India 15.8 % South Korea 10.5 % United States 6.3 % Brazil 5.4 % Mexico 2.9 % Saudi Arabia 2.7 % Malaysia 2.3 % Indonesia 2.0 % Other # 7.3 % Other Assets Less Liabilities 0.3 % # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000198231 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Advantage Emerging Markets Fund | |
| Class Name | Class K Shares | |
| Trading Symbol | BLSKX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Class K Shares $ 0.81 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 42 | |
| Expense Ratio, Percent | 0.81% | [4] |
| 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 1 Year 5 Years 10 Years Class K Shares 6.96 % 21.47 % 2.64 % 1.42 % MSCI Emerging Markets Index 8.59 25.32 3.93 3.43 | |
| Performance Inception Date | Jan. 25, 2018 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 95,377,157 | |
| Holdings Count | Holding | 231 | |
| Investment Company Portfolio Turnover | 92% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 231 Portfolio Turnover Rate 92 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of China 26.4 % Taiwan 18.1 % India 15.8 % South Korea 10.5 % United States 6.3 % Brazil 5.4 % Mexico 2.9 % Saudi Arabia 2.7 % Malaysia 2.3 % Indonesia 2.0 % Other # 7.3 % Other Assets Less Liabilities 0.3 % # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000121567 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Global Equity Market Neutral Fund | |
| Class Name | Institutional Shares | |
| Trading Symbol | BDMIX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Global Equity Market Neutral 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Institutional Shares $ 1.35 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 71 | |
| Expense Ratio, Percent | 1.35% | [5] |
| 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 1 Year 5 Years 10 Years Institutional Shares 7.24 % 24.29 % 7.47 % 4.28 % MSCI World Index 11.13 33.68 12.03 9.78 ICE BofA 3-Month U.S. Treasury Bill Index 2.66 5.39 2.36 1.69 | |
| 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. | |
| Prior Market Index Comparison [Text Block] | On December 1, 2023, the Fund began to compare its performance to the standard pricing time of the ICE BofA 3-Month U.S. Treasury Bill Index (the “Index”). Index data prior to March 1, 2021 is for the Index’s standard pricing time of 3pm. Index data from March 1, 2021 through November 30, 2023 is for a custom 4pm pricing variant of the Index. Index returns beginning on December 1, 2023 reflect the Index’s new standard pricing time of 4pm. The change of the Index’s standard pricing time from 3pm to 4pm resulted in the discontinuation of the custom 4pm pricing variant used from March 1, 2021 through November 30, 2023. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 2,510,924,598 | |
| Holdings Count | Holding | 5,850 | |
| Investment Company Portfolio Turnover | 35% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 5,850 Portfolio Turnover Rate 35 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Percent of (a) Country/Geographic Region Long Short Total United States 27.8 % 26.5 % 54.3 % Japan 8.5 % 7.8 % 16.3 % United Kingdom 2.9 % 2.5 % 5.4 % Canada 1.8 % 2.2 % 4.0 % France 1.2 % 1.5 % 2.7 % Australia 1.3 % 1.3 % 2.6 % Switzerland 1.0 % 1.5 % 2.5 % Germany 1.4 % 1.1 % 2.5 % Denmark 0.5 % 0.9 % 1.4 % Sweden 0.3 % 1.0 % 1.3 % Other # 3.8 % 3.2 % 7.0 % 50.5 49.5 100.0 (a) Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000121568 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Global Equity Market Neutral Fund | |
| Class Name | Investor A Shares | |
| Trading Symbol | BDMAX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Global Equity Market Neutral 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Investor A Shares $ 1.60 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 84 | |
| Expense Ratio, Percent | 1.60% | [6] |
| 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 1 Year 5 Years 10 Years Investor A Shares 7.13 % 24.12 % 7.22 % 4.02 % Investor A Shares (with sales charge) 1.50 17.60 6.07 3.46 MSCI World Index 11.13 33.68 12.03 9.78 ICE BofA 3-Month U.S. Treasury Bill Index 2.66 5.39 2.36 1.69 | |
| 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. | |
| Prior Market Index Comparison [Text Block] | On December 1, 2023, the Fund began to compare its performance to the standard pricing time of the ICE BofA 3-Month U.S. Treasury Bill Index (the “Index”). Index data prior to March 1, 2021 is for the Index’s standard pricing time of 3pm. Index data from March 1, 2021 through November 30, 2023 is for a custom 4pm pricing variant of the Index. Index returns beginning on December 1, 2023 reflect the Index’s new standard pricing time of 4pm. The change of the Index’s standard pricing time from 3pm to 4pm resulted in the discontinuation of the custom 4pm pricing variant used from March 1, 2021 through November 30, 2023. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 2,510,924,598 | |
| Holdings Count | Holding | 5,850 | |
| Investment Company Portfolio Turnover | 35% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 5,850 Portfolio Turnover Rate 35 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Percent of (a) Country/Geographic Region Long Short Total United States 27.8 % 26.5 % 54.3 % Japan 8.5 % 7.8 % 16.3 % United Kingdom 2.9 % 2.5 % 5.4 % Canada 1.8 % 2.2 % 4.0 % France 1.2 % 1.5 % 2.7 % Australia 1.3 % 1.3 % 2.6 % Switzerland 1.0 % 1.5 % 2.5 % Germany 1.4 % 1.1 % 2.5 % Denmark 0.5 % 0.9 % 1.4 % Sweden 0.3 % 1.0 % 1.3 % Other # 3.8 % 3.2 % 7.0 % 50.5 49.5 100.0 (a) Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000121569 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Global Equity Market Neutral Fund | |
| Class Name | Investor C Shares | |
| Trading Symbol | BDMCX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Global Equity Market Neutral 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Investor C Shares $ 2.35 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 123 | |
| Expense Ratio, Percent | 2.35% | [7] |
| 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 1 Year 5 Years 10 Years Investor C Shares 6.81 % 23.18 % 6.41 % 3.39 % Investor C Shares (with sales charge) 5.82 22.18 6.41 3.39 MSCI World Index 11.13 33.68 12.03 9.78 ICE BofA 3-Month U.S. Treasury Bill Index 2.66 5.39 2.36 1.69 | |
| 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. | |
| Prior Market Index Comparison [Text Block] | On December 1, 2023, the Fund began to compare its performance to the standard pricing time of the ICE BofA 3-Month U.S. Treasury Bill Index (the “Index”). Index data prior to March 1, 2021 is for the Index’s standard pricing time of 3pm. Index data from March 1, 2021 through November 30, 2023 is for a custom 4pm pricing variant of the Index. Index returns beginning on December 1, 2023 reflect the Index’s new standard pricing time of 4pm. The change of the Index’s standard pricing time from 3pm to 4pm resulted in the discontinuation of the custom 4pm pricing variant used from March 1, 2021 through November 30, 2023. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 2,510,924,598 | |
| Holdings Count | Holding | 5,850 | |
| Investment Company Portfolio Turnover | 35% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 5,850 Portfolio Turnover Rate 35 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Percent of (a) Country/Geographic Region Long Short Total United States 27.8 % 26.5 % 54.3 % Japan 8.5 % 7.8 % 16.3 % United Kingdom 2.9 % 2.5 % 5.4 % Canada 1.8 % 2.2 % 4.0 % France 1.2 % 1.5 % 2.7 % Australia 1.3 % 1.3 % 2.6 % Switzerland 1.0 % 1.5 % 2.5 % Germany 1.4 % 1.1 % 2.5 % Denmark 0.5 % 0.9 % 1.4 % Sweden 0.3 % 1.0 % 1.3 % Other # 3.8 % 3.2 % 7.0 % 50.5 49.5 100.0 (a) Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000166017 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Global Equity Market Neutral Fund | |
| Class Name | Class K Shares | |
| Trading Symbol | BGCKX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Global Equity Market Neutral 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Class K Shares $ 1.30 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 68 | |
| Expense Ratio, Percent | 1.30% | [8] |
| 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 1 Year 5 Years 10 Years Class K Shares 7.30 % 24.44 % 7.54 % 4.33 % MSCI World Index 11.13 33.68 12.03 9.78 ICE BofA 3-Month U.S. Treasury Bill Index 2.66 5.39 2.36 1.69 | |
| Performance Inception Date | Mar. 28, 2016 | |
| 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. | |
| Prior Market Index Comparison [Text Block] | On December 1, 2023, the Fund began to compare its performance to the standard pricing time of the ICE BofA 3-Month U.S. Treasury Bill Index (the “Index”). Index data prior to March 1, 2021 is for the Index’s standard pricing time of 3pm. Index data from March 1, 2021 through November 30, 2023 is for a custom 4pm pricing variant of the Index. Index returns beginning on December 1, 2023 reflect the Index’s new standard pricing time of 4pm. The change of the Index’s standard pricing time from 3pm to 4pm resulted in the discontinuation of the custom 4pm pricing variant used from March 1, 2021 through November 30, 2023. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 2,510,924,598 | |
| Holdings Count | Holding | 5,850 | |
| Investment Company Portfolio Turnover | 35% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 5,850 Portfolio Turnover Rate 35 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Percent of (a) Country/Geographic Region Long Short Total United States 27.8 % 26.5 % 54.3 % Japan 8.5 % 7.8 % 16.3 % United Kingdom 2.9 % 2.5 % 5.4 % Canada 1.8 % 2.2 % 4.0 % France 1.2 % 1.5 % 2.7 % Australia 1.3 % 1.3 % 2.6 % Switzerland 1.0 % 1.5 % 2.5 % Germany 1.4 % 1.1 % 2.5 % Denmark 0.5 % 0.9 % 1.4 % Sweden 0.3 % 1.0 % 1.3 % Other # 3.8 % 3.2 % 7.0 % 50.5 49.5 100.0 (a) Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| C000223506 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Defensive Advantage Emerging Markets Fund | |
| Class Name | Institutional Shares | |
| Trading Symbol | BIDEX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Defensive Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Institutional Shares $ 0.86 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 45 | |
| Expense Ratio, Percent | 0.86% | [9] |
| 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 1 Year Since Fund Institutional Shares 7.77 % 21.00 % 4.44 % MSCI Emerging Markets Index 8.59 25.32 (0.46 ) MSCI Emerging Markets Minimum Volatility Index 9.49 21.72 3.06 | |
| Performance Inception Date | Dec. 21, 2020 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 10,891,057 | |
| Holdings Count | Holding | 134 | |
| Investment Company Portfolio Turnover | 124% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 134 Portfolio Turnover Rate 124 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of India 20.9 % China 19.7 % Taiwan 13.0 % Saudi Arabia 7.3 % Malaysia 5.6 % United States 5.0 % South Korea 4.4 % Qatar 3.4 % United Arab Emirates 3.2 % Kuwait 3.0 % Other # 14.7 % Liabilities in Excess of Other Assets (0.2 ) % Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % (a) Excludes short-term securities. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % | |
| C000223508 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Defensive Advantage Emerging Markets Fund | |
| Class Name | Investor A Shares | |
| Trading Symbol | BADEX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Defensive Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Investor A Shares $ 1.11 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 58 | |
| Expense Ratio, Percent | 1.11% | [10] |
| 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 1 Year Since Fund Investor A Shares 7.68 % 20.88 % 4.19 % Investor A Shares (with sales charge) 2.03 14.54 2.75 MSCI Emerging Markets Index 8.59 25.32 (0.46 ) MSCI Emerging Markets Minimum Volatility Index 9.49 21.72 3.06 | |
| Performance Inception Date | Dec. 21, 2020 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 10,891,057 | |
| Holdings Count | Holding | 134 | |
| Investment Company Portfolio Turnover | 124% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 134 Portfolio Turnover Rate 124 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of India 20.9 % China 19.7 % Taiwan 13.0 % Saudi Arabia 7.3 % Malaysia 5.6 % United States 5.0 % South Korea 4.4 % Qatar 3.4 % United Arab Emirates 3.2 % Kuwait 3.0 % Other # 14.7 % Liabilities in Excess of Other Assets (0.2 ) % Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % (a) Excludes short-term securities. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % | |
| C000223507 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BlackRock Defensive Advantage Emerging Markets Fund | |
| Class Name | Class K Shares | |
| Trading Symbol | BKDEX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock Defensive Advantage Emerging Markets 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 | |
| Additional Information Phone Number | (800) 441‑7762 | |
| 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 Costs paid as a percentage of a Class K Shares $ 0.81 % (a) (a) Annualized. | |
| Expenses Paid, Amount | $ 42 | |
| Expense Ratio, Percent | 0.81% | [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 1 Year Since Fund Class K Shares 7.89 % 21.16 % 4.48 % MSCI Emerging Markets Index 8.59 25.32 (0.46 ) MSCI Emerging Markets Minimum Volatility Index 9.49 21.72 3.06 | |
| Performance Inception Date | Dec. 21, 2020 | |
| 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. | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com | |
| Net Assets | $ 10,891,057 | |
| Holdings Count | Holding | 134 | |
| Investment Company Portfolio Turnover | 124% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ Number of Portfolio Holdings 134 Portfolio Turnover Rate 124 % | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024) Geographic allocation Country/Geographic Region Percent of India 20.9 % China 19.7 % Taiwan 13.0 % Saudi Arabia 7.3 % Malaysia 5.6 % United States 5.0 % South Korea 4.4 % Qatar 3.4 % United Arab Emirates 3.2 % Kuwait 3.0 % Other # 14.7 % Liabilities in Excess of Other Assets (0.2 ) % Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % (a) Excludes short-term securities. # Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Compal Electronics, Inc. 1.5 % Realtek Semiconductor Corp. 1.5 % Lupin Ltd. 1.5 % Abu Dhabi Commercial Bank PJSC 1.5 % Industrial & Commercial Bank of China Ltd., Class H 1.5 % Etihad Etisalat Co. 1.5 % Tata Consultancy Services Ltd. 1.4 % President Chain Store Corp. 1.4 % Ooredoo QPSC 1.4 % E.Sun Financial Holding Co. Ltd. 1.4 % | |
| [1]Annualized.[2]Annualized.[3]Annualized.[4]Annualized.[5]Annualized.[6]Annualized.[7]Annualized.[8]Annualized.[9]Annualized.[10]Annualized.[11]Annualized. | ||
| Shareholder Report, Line Graph (Details) | 6 Months Ended | 12 Months Ended | 46 Months Ended | 60 Months Ended | 120 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000103258 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Institutional Shares | ||||
| Average Annual Return, Percent | 6.95% | 21.42% | 2.61% | 1.39% | |
| C000103256 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||
| Average Annual Return, Percent | 1.27% | 14.79% | 1.19% | 0.57% | |
| C000103256 [Member] | Without Sales Load [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares | ||||
| Average Annual Return, Percent | 6.88% | 21.15% | 2.29% | 1.12% | |
| C000103257 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | ||||
| Average Annual Return, Percent | 5.48% | 19.29% | 1.53% | 0.50% | |
| C000103257 [Member] | Without Sales Load [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor C Shares | ||||
| Average Annual Return, Percent | 6.48% | 20.29% | 1.53% | 0.50% | |
| C000198231 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Class K Shares | ||||
| Average Annual Return, Percent | 6.96% | 21.47% | 2.64% | 1.42% | |
| C000121567 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Institutional Shares | ||||
| Average Annual Return, Percent | 7.24% | 24.29% | 7.47% | 4.28% | |
| C000121568 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||
| Average Annual Return, Percent | 1.50% | 17.60% | 6.07% | 3.46% | |
| C000121568 [Member] | Without Sales Load [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares | ||||
| Average Annual Return, Percent | 7.13% | 24.12% | 7.22% | 4.02% | |
| C000121569 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | ||||
| Average Annual Return, Percent | 5.82% | 22.18% | 6.41% | 3.39% | |
| C000121569 [Member] | Without Sales Load [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor C Shares | ||||
| Average Annual Return, Percent | 6.81% | 23.18% | 6.41% | 3.39% | |
| C000166017 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Class K Shares | ||||
| Average Annual Return, Percent | 7.30% | 24.44% | 7.54% | 4.33% | |
| C000223506 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Institutional Shares | ||||
| Average Annual Return, Percent | 7.77% | 21% | 4.44% | ||
| C000223508 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||
| Average Annual Return, Percent | 2.03% | 14.54% | 2.75% | ||
| C000223508 [Member] | Without Sales Load [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Investor A Shares | ||||
| Average Annual Return, Percent | 7.68% | 20.88% | 4.19% | ||
| C000223507 [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | Class K Shares | ||||
| Average Annual Return, Percent | 7.89% | 21.16% | 4.48% | ||
| MSCI Emerging Markets Index [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index | ||||
| Average Annual Return, Percent | 8.59% | 25.32% | (0.46%) | 3.93% | 3.43% |
| MSCI World Index [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | MSCI World Index | ||||
| Average Annual Return, Percent | 11.13% | 33.68% | 12.03% | 9.78% | |
| ICE BofA 3 Month U S Treasury Bill Index [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||||
| Average Annual Return, Percent | 2.66% | 5.39% | 2.36% | 1.69% | |
| MSCI Emerging Markets Minimum Volatility Index [Member] | |||||
| Account Value [Line Items] | |||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Minimum Volatility Index | ||||
| Average Annual Return, Percent | 9.49% | 21.72% | 3.06% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 | |
| C000103258 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | [1] |
| C000103258 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| C000103258 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| C000103258 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.80% | |
| C000103258 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.50% | |
| C000103258 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.30% | |
| C000103258 [Member] | BRAZIL | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| C000103258 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | |
| C000103258 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.70% | |
| C000103258 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.30% | |
| C000103258 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000103258 [Member] | Other Assets Less Liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| C000103256 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | [2] |
| C000103256 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| C000103256 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| C000103256 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.80% | |
| C000103256 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.50% | |
| C000103256 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.30% | |
| C000103256 [Member] | BRAZIL | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| C000103256 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | |
| C000103256 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.70% | |
| C000103256 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.30% | |
| C000103256 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000103256 [Member] | Other Assets Less Liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| C000103257 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | [3] |
| C000103257 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| C000103257 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| C000103257 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.80% | |
| C000103257 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.50% | |
| C000103257 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.30% | |
| C000103257 [Member] | BRAZIL | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| C000103257 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | |
| C000103257 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.70% | |
| C000103257 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.30% | |
| C000103257 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000103257 [Member] | Other Assets Less Liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| C000198231 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | [4] |
| C000198231 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| C000198231 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| C000198231 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.80% | |
| C000198231 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.50% | |
| C000198231 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.30% | |
| C000198231 [Member] | BRAZIL | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| C000198231 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | |
| C000198231 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.70% | |
| C000198231 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.30% | |
| C000198231 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000198231 [Member] | Other Assets Less Liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| C000121567 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 100% | [5] |
| Percent of Total Long Exposure | 50.50% | [5] |
| Percent of Total Short Exposure | 49.50% | [5] |
| C000121567 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 7% | [5],[6] |
| Percent of Total Long Exposure | 3.80% | [5],[6] |
| Percent of Total Short Exposure | 3.20% | [5],[6] |
| C000121567 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 54.30% | [5] |
| Percent of Total Long Exposure | 27.80% | [5] |
| Percent of Total Short Exposure | 26.50% | [5] |
| C000121567 [Member] | JAPAN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 16.30% | [5] |
| Percent of Total Long Exposure | 8.50% | [5] |
| Percent of Total Short Exposure | 7.80% | [5] |
| C000121567 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 5.40% | [5] |
| Percent of Total Long Exposure | 2.90% | [5] |
| Percent of Total Short Exposure | 2.50% | [5] |
| C000121567 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 4% | [5] |
| Percent of Total Long Exposure | 1.80% | [5] |
| Percent of Total Short Exposure | 2.20% | [5] |
| C000121567 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.70% | [5] |
| Percent of Total Long Exposure | 1.20% | [5] |
| Percent of Total Short Exposure | 1.50% | [5] |
| C000121567 [Member] | AUSTRALIA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.60% | [5] |
| Percent of Total Long Exposure | 1.30% | [5] |
| Percent of Total Short Exposure | 1.30% | [5] |
| C000121567 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [5] |
| Percent of Total Long Exposure | 1% | [5] |
| Percent of Total Short Exposure | 1.50% | [5] |
| C000121567 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [5] |
| Percent of Total Long Exposure | 1.40% | [5] |
| Percent of Total Short Exposure | 1.10% | [5] |
| C000121567 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.40% | [5] |
| Percent of Total Long Exposure | 0.50% | [5] |
| Percent of Total Short Exposure | 0.90% | [5] |
| C000121567 [Member] | SWEDEN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.30% | [5] |
| Percent of Total Long Exposure | 0.30% | [5] |
| Percent of Total Short Exposure | 1% | [5] |
| C000121568 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 100% | [7] |
| Percent of Total Long Exposure | 50.50% | [7] |
| Percent of Total Short Exposure | 49.50% | [7] |
| C000121568 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 7% | [7],[8] |
| Percent of Total Long Exposure | 3.80% | [7],[8] |
| Percent of Total Short Exposure | 3.20% | [7],[8] |
| C000121568 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 54.30% | [7] |
| Percent of Total Long Exposure | 27.80% | [7] |
| Percent of Total Short Exposure | 26.50% | [7] |
| C000121568 [Member] | JAPAN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 16.30% | [7] |
| Percent of Total Long Exposure | 8.50% | [7] |
| Percent of Total Short Exposure | 7.80% | [7] |
| C000121568 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 5.40% | [7] |
| Percent of Total Long Exposure | 2.90% | [7] |
| Percent of Total Short Exposure | 2.50% | [7] |
| C000121568 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 4% | [7] |
| Percent of Total Long Exposure | 1.80% | [7] |
| Percent of Total Short Exposure | 2.20% | [7] |
| C000121568 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.70% | [7] |
| Percent of Total Long Exposure | 1.20% | [7] |
| Percent of Total Short Exposure | 1.50% | [7] |
| C000121568 [Member] | AUSTRALIA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.60% | [7] |
| Percent of Total Long Exposure | 1.30% | [7] |
| Percent of Total Short Exposure | 1.30% | [7] |
| C000121568 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [7] |
| Percent of Total Long Exposure | 1% | [7] |
| Percent of Total Short Exposure | 1.50% | [7] |
| C000121568 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [7] |
| Percent of Total Long Exposure | 1.40% | [7] |
| Percent of Total Short Exposure | 1.10% | [7] |
| C000121568 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.40% | [7] |
| Percent of Total Long Exposure | 0.50% | [7] |
| Percent of Total Short Exposure | 0.90% | [7] |
| C000121568 [Member] | SWEDEN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.30% | [7] |
| Percent of Total Long Exposure | 0.30% | [7] |
| Percent of Total Short Exposure | 1% | [7] |
| C000121569 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 100% | [9] |
| Percent of Total Long Exposure | 50.50% | [9] |
| Percent of Total Short Exposure | 49.50% | [9] |
| C000121569 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 7% | [9],[10] |
| Percent of Total Long Exposure | 3.80% | [9],[10] |
| Percent of Total Short Exposure | 3.20% | [9],[10] |
| C000121569 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 54.30% | [9] |
| Percent of Total Long Exposure | 27.80% | [9] |
| Percent of Total Short Exposure | 26.50% | [9] |
| C000121569 [Member] | JAPAN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 16.30% | [9] |
| Percent of Total Long Exposure | 8.50% | [9] |
| Percent of Total Short Exposure | 7.80% | [9] |
| C000121569 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 5.40% | [9] |
| Percent of Total Long Exposure | 2.90% | [9] |
| Percent of Total Short Exposure | 2.50% | [9] |
| C000121569 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 4% | [9] |
| Percent of Total Long Exposure | 1.80% | [9] |
| Percent of Total Short Exposure | 2.20% | [9] |
| C000121569 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.70% | [9] |
| Percent of Total Long Exposure | 1.20% | [9] |
| Percent of Total Short Exposure | 1.50% | [9] |
| C000121569 [Member] | AUSTRALIA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.60% | [9] |
| Percent of Total Long Exposure | 1.30% | [9] |
| Percent of Total Short Exposure | 1.30% | [9] |
| C000121569 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [9] |
| Percent of Total Long Exposure | 1% | [9] |
| Percent of Total Short Exposure | 1.50% | [9] |
| C000121569 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [9] |
| Percent of Total Long Exposure | 1.40% | [9] |
| Percent of Total Short Exposure | 1.10% | [9] |
| C000121569 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.40% | [9] |
| Percent of Total Long Exposure | 0.50% | [9] |
| Percent of Total Short Exposure | 0.90% | [9] |
| C000121569 [Member] | SWEDEN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.30% | [9] |
| Percent of Total Long Exposure | 0.30% | [9] |
| Percent of Total Short Exposure | 1% | [9] |
| C000166017 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 100% | [11] |
| Percent of Total Long Exposure | 50.50% | [11] |
| Percent of Total Short Exposure | 49.50% | [11] |
| C000166017 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 7% | [11],[12] |
| Percent of Total Long Exposure | 3.80% | [11],[12] |
| Percent of Total Short Exposure | 3.20% | [11],[12] |
| C000166017 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 54.30% | [11] |
| Percent of Total Long Exposure | 27.80% | [11] |
| Percent of Total Short Exposure | 26.50% | [11] |
| C000166017 [Member] | JAPAN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 16.30% | [11] |
| Percent of Total Long Exposure | 8.50% | [11] |
| Percent of Total Short Exposure | 7.80% | [11] |
| C000166017 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 5.40% | [11] |
| Percent of Total Long Exposure | 2.90% | [11] |
| Percent of Total Short Exposure | 2.50% | [11] |
| C000166017 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 4% | [11] |
| Percent of Total Long Exposure | 1.80% | [11] |
| Percent of Total Short Exposure | 2.20% | [11] |
| C000166017 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.70% | [11] |
| Percent of Total Long Exposure | 1.20% | [11] |
| Percent of Total Short Exposure | 1.50% | [11] |
| C000166017 [Member] | AUSTRALIA | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.60% | [11] |
| Percent of Total Long Exposure | 1.30% | [11] |
| Percent of Total Short Exposure | 1.30% | [11] |
| C000166017 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [11] |
| Percent of Total Long Exposure | 1% | [11] |
| Percent of Total Short Exposure | 1.50% | [11] |
| C000166017 [Member] | GERMANY | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.50% | [11] |
| Percent of Total Long Exposure | 1.40% | [11] |
| Percent of Total Short Exposure | 1.10% | [11] |
| C000166017 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.40% | [11] |
| Percent of Total Long Exposure | 0.50% | [11] |
| Percent of Total Short Exposure | 0.90% | [11] |
| C000166017 [Member] | SWEDEN | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 1.30% | [11] |
| Percent of Total Long Exposure | 0.30% | [11] |
| Percent of Total Short Exposure | 1% | [11] |
| C000223506 [Member] | Compal Electronics Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Realtek Semiconductor Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Lupin Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Abu Dhabi Commercial Bank PJSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Industrial And Commercial Bank of China Ltd Class H [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Etihad Etisalat Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [13] |
| C000223506 [Member] | Tata Consultancy Services Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [13] |
| C000223506 [Member] | President Chain Store Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [13] |
| C000223506 [Member] | Ooredoo QPSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [13] |
| C000223506 [Member] | E Sun Financial Holding Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [13] |
| C000223506 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.70% | [14] |
| C000223506 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.70% | |
| C000223506 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13% | |
| C000223506 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.90% | |
| C000223506 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | |
| C000223506 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000223506 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | |
| C000223506 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | |
| C000223506 [Member] | QATAR | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.40% | |
| C000223506 [Member] | UNITED ARAB EMIRATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000223506 [Member] | KUWAIT | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | |
| C000223506 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| C000223508 [Member] | Compal Electronics Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Realtek Semiconductor Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Lupin Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Abu Dhabi Commercial Bank PJSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Industrial And Commercial Bank of China Ltd Class H [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Etihad Etisalat Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [15] |
| C000223508 [Member] | Tata Consultancy Services Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [15] |
| C000223508 [Member] | President Chain Store Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [15] |
| C000223508 [Member] | Ooredoo QPSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [15] |
| C000223508 [Member] | E Sun Financial Holding Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [15] |
| C000223508 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.70% | [16] |
| C000223508 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.70% | |
| C000223508 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13% | |
| C000223508 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.90% | |
| C000223508 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | |
| C000223508 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000223508 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | |
| C000223508 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | |
| C000223508 [Member] | QATAR | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.40% | |
| C000223508 [Member] | UNITED ARAB EMIRATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000223508 [Member] | KUWAIT | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | |
| C000223508 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| C000223507 [Member] | Compal Electronics Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Realtek Semiconductor Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Lupin Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Abu Dhabi Commercial Bank PJSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Industrial And Commercial Bank of China Ltd Class H [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Etihad Etisalat Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [17] |
| C000223507 [Member] | Tata Consultancy Services Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [17] |
| C000223507 [Member] | President Chain Store Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [17] |
| C000223507 [Member] | Ooredoo QPSC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [17] |
| C000223507 [Member] | E Sun Financial Holding Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.40% | [17] |
| C000223507 [Member] | Other [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.70% | [18] |
| C000223507 [Member] | CHINA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.70% | |
| C000223507 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13% | |
| C000223507 [Member] | INDIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.90% | |
| C000223507 [Member] | KOREA, REPUBLIC OF | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | |
| C000223507 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000223507 [Member] | SAUDI ARABIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.30% | |
| C000223507 [Member] | MALAYSIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.60% | |
| C000223507 [Member] | QATAR | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.40% | |
| C000223507 [Member] | UNITED ARAB EMIRATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000223507 [Member] | KUWAIT | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | |
| C000223507 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| [1]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[2]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[3]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[4]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[5]Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any.[6]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[7]Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any.[8]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[9]Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any.[10]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[11]Includes the gross market values of long and short securities of the underlying derivative contracts and excludes short-term securities and options, if any.[12]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[13]Excludes short-term securities.[14]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[15]Excludes short-term securities.[16]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other.[17]Excludes short-term securities.[18]Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. | ||
