| Form N-CSR Cover | 12 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds II |
| Entity Central Index Key | 0001398078 |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 12 Months Ended |
| May 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds II |
| Entity Central Index Key | 0001398078 |
| Document Period End Date | May 31, 2024 |
| C000172902 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Dividend Portfolio |
| Class Name | Class K Shares |
| Trading Symbol | BKBDX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Dividend Portfolio (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | 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 year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Class K Shares $ 0.73 % |
| Expenses Paid, Amount | $ 79 |
| Expense Ratio, Percent | 0.73% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Global equities broadly moved higher as the period progressed, resulting in significant positive returns across most market segments. Fears of a U.S. recession waned while major overseas economies returned to positive growth. Signs of easing inflation led to expectations that leading central banks were poised to reduce interest rates, leading growth-oriented stocks to outperform dividend payers. What contributed to performance? Positive contributions to performance, relative to the benchmark (MSCI All Country World Index) were led by stock selection in industrials and energy along with a lack of exposure to utilities. In terms of individual holdings, results for Taiwanese semiconductor company MediaTek benefited from improving inventory levels and expectations that a new flagship chip would drive accelerating sales within its smartphone segment. American specialty insurance company Assurant exceeded earnings estimates and upgraded its outlook for 2023, reflecting continued improvement in both its global housing and global lifestyle segments. U.S. energy technology company Baker Hughes outperformed as energy stocks were boosted as recession fears waned and the production cuts by several OPEC+ countries production cuts led oil prices higher. What detracted from performance? Stock selection detracted the most within communication services, financials, and healthcare. Swiss pharmaceutical and biotech company Lonza Biologics experienced the unexpected departure of its CEO and downgraded 2024 guidance at its Capital Markets Day. The downgrade was centered on the biologics division which management had previously indicated was fully booked for the foreseeable future, and the Fund exited the position. Anglo-Swedish pharmaceutical company AstraZeneca lagged despite posting strong results given the market’s preference for more growth-oriented stocks. U.K.-based multinational insurance company Prudential Financial came under pressure due to weaker sentiment around China. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 1, 2014 through May 31, 2024 Initial See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Class K Shares 16.86 % 8.71 % 6.40 % MSCI All Country World Index 23.56 % 11.68 % 8.40 % |
| 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 | $ 1,288,851,958 |
| Holdings Count | Holding | 48 |
| Advisory Fees Paid, Amount | $ 7,496,169 |
| Investment Company Portfolio Turnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Geographic allocation Country Percent of United States 59.4 ) % United Kingdom 10.8 ) % France 8.6 ) % Switzerland 5.0 ) % Netherlands 4.1 ) % Denmark 3.2 ) % Taiwan 3.2 ) % Canada 2.0 ) % Mexico 1.8 ) % Singapore 1.1 ) % Indonesia 0.7 ) % Short-Term Securities 0.2 ) % Liabilities in Excess of Other Assets (0.1 ) % Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| C000058059 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Dividend Portfolio |
| Class Name | Investor C Shares |
| Trading Symbol | BCBDX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Dividend Portfolio (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | 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 year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor C Shares $ 1.87 % |
| Expenses Paid, Amount | $ 202 |
| Expense Ratio, Percent | 1.87% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Global equities broadly moved higher as the period progressed, resulting in significant positive returns across most market segments. Fears of a U.S. recession waned while major overseas economies returned to positive growth. Signs of easing inflation led to expectations that leading central banks were poised to reduce interest rates, leading growth-oriented stocks to outperform dividend payers. What contributed to performance? Positive contributions to performance, relative to the benchmark (MSCI All Country World Index) were led by stock selection in industrials and energy along with a lack of exposure to utilities. In terms of individual holdings, results for Taiwanese semiconductor company MediaTek benefited from improving inventory levels and expectations that a new flagship chip would drive accelerating sales within its smartphone segment. American specialty insurance company Assurant exceeded earnings estimates and upgraded its outlook for 2023, reflecting continued improvement in both its global housing and global lifestyle segments. U.S. energy technology company Baker Hughes outperformed as energy stocks were boosted as recession fears waned and the production cuts by several OPEC+ countries production cuts led oil prices higher. What detracted from performance? Stock selection detracted the most within communication services, financials, and healthcare. Swiss pharmaceutical and biotech company Lonza Biologics experienced the unexpected departure of its CEO and downgraded 2024 guidance at its Capital Markets Day. The downgrade was centered on the biologics division which management had previously indicated was fully booked for the foreseeable future, and the Fund exited the position. Anglo-Swedish pharmaceutical company AstraZeneca lagged despite posting strong results given the market’s preference for more growth-oriented stocks. U.K.-based multinational insurance company Prudential Financial came under pressure due to weaker sentiment around China. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 1, 2014 through May 31, 2024 Initial See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Investor C Shares 15.64 % 7.54 % 5.42 % Investor C Shares (with sales charge) 14.64 % 7.54 % 5.42 % MSCI All Country World Index 23.56 % 11.68 % 8.40 % |
| 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 | $ 1,288,851,958 |
| Holdings Count | Holding | 48 |
| Advisory Fees Paid, Amount | $ 7,496,169 |
| Investment Company Portfolio Turnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Geographic allocation Country Percent of United States 59.4 ) % United Kingdom 10.8 ) % France 8.6 ) % Switzerland 5.0 ) % Netherlands 4.1 ) % Denmark 3.2 ) % Taiwan 3.2 ) % Canada 2.0 ) % Mexico 1.8 ) % Singapore 1.1 ) % Indonesia 0.7 ) % Short-Term Securities 0.2 ) % Liabilities in Excess of Other Assets (0.1 ) % Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| C000058058 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Dividend Portfolio |
| Class Name | Investor A Shares |
| Trading Symbol | BABDX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Dividend Portfolio (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | 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 year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor A Shares $ 1.06 % |
| Expenses Paid, Amount | $ 115 |
| Expense Ratio, Percent | 1.06% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Global equities broadly moved higher as the period progressed, resulting in significant positive returns across most market segments. Fears of a U.S. recession waned while major overseas economies returned to positive growth. Signs of easing inflation led to expectations that leading central banks were poised to reduce interest rates, leading growth-oriented stocks to outperform dividend payers. What contributed to performance? Positive contributions to performance, relative to the benchmark (MSCI All Country World Index) were led by stock selection in industrials and energy along with a lack of exposure to utilities. In terms of individual holdings, results for Taiwanese semiconductor company MediaTek benefited from improving inventory levels and expectations that a new flagship chip would drive accelerating sales within its smartphone segment. American specialty insurance company Assurant exceeded earnings estimates and upgraded its outlook for 2023, reflecting continued improvement in both its global housing and global lifestyle segments. U.S. energy technology company Baker Hughes outperformed as energy stocks were boosted as recession fears waned and the production cuts by several OPEC+ countries production cuts led oil prices higher. What detracted from performance? Stock selection detracted the most within communication services, financials, and healthcare. Swiss pharmaceutical and biotech company Lonza Biologics experienced the unexpected departure of its CEO and downgraded 2024 guidance at its Capital Markets Day. The downgrade was centered on the biologics division which management had previously indicated was fully booked for the foreseeable future, and the Fund exited the position. Anglo-Swedish pharmaceutical company AstraZeneca lagged despite posting strong results given the market’s preference for more growth-oriented stocks. U.K.-based multinational insurance company Prudential Financial came under pressure due to weaker sentiment around China. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 1, 2014 through May 31, 2024 Initial See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Investor A Shares 16.60 % 8.39 % 6.08 % Investor A Shares (with sales charge) 10.48 % 7.23 % 5.50 % MSCI All Country World Index 23.56 % 11.68 % 8.40 % |
| 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 | $ 1,288,851,958 |
| Holdings Count | Holding | 48 |
| Advisory Fees Paid, Amount | $ 7,496,169 |
| Investment Company Portfolio Turnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Geographic allocation Country Percent of United States 59.4 ) % United Kingdom 10.8 ) % France 8.6 ) % Switzerland 5.0 ) % Netherlands 4.1 ) % Denmark 3.2 ) % Taiwan 3.2 ) % Canada 2.0 ) % Mexico 1.8 ) % Singapore 1.1 ) % Indonesia 0.7 ) % Short-Term Securities 0.2 ) % Liabilities in Excess of Other Assets (0.1 ) % Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| C000058057 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Dividend Portfolio |
| Class Name | Institutional Shares |
| Trading Symbol | BIBDX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Dividend Portfolio (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | 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 year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Institutional Shares $ 0.81 % |
| Expenses Paid, Amount | $ 88 |
| Expense Ratio, Percent | 0.81% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Global equities broadly moved higher as the period progressed, resulting in significant positive returns across most market segments. Fears of a U.S. recession waned while major overseas economies returned to positive growth. Signs of easing inflation led to expectations that leading central banks were poised to reduce interest rates, leading growth-oriented stocks to outperform dividend payers. What contributed to performance? Positive contributions to performance, relative to the benchmark (MSCI All Country World Index) were led by stock selection in industrials and energy along with a lack of exposure to utilities. In terms of individual holdings, results for Taiwanese semiconductor company MediaTek benefited from improving inventory levels and expectations that a new flagship chip would drive accelerating sales within its smartphone segment. American specialty insurance company Assurant exceeded earnings estimates and upgraded its outlook for 2023, reflecting continued improvement in both its global housing and global lifestyle segments. U.S. energy technology company Baker Hughes outperformed as energy stocks were boosted as recession fears waned and the production cuts by several OPEC+ countries production cuts led oil prices higher. What detracted from performance? Stock selection detracted the most within communication services, financials, and healthcare. Swiss pharmaceutical and biotech company Lonza Biologics experienced the unexpected departure of its CEO and downgraded 2024 guidance at its Capital Markets Day. The downgrade was centered on the biologics division which management had previously indicated was fully booked for the foreseeable future, and the Fund exited the position. Anglo-Swedish pharmaceutical company AstraZeneca lagged despite posting strong results given the market’s preference for more growth-oriented stocks. U.K.-based multinational insurance company Prudential Financial came under pressure due to weaker sentiment around China. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 1, 2014 through May 31, 2024 Initial See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years 10 Years Institutional Shares 16.80 % 8.65 % 6.34 % MSCI All Country World Index 23.56 % 11.68 % 8.40 % |
| 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 | $ 1,288,851,958 |
| Holdings Count | Holding | 48 |
| Advisory Fees Paid, Amount | $ 7,496,169 |
| Investment Company Portfolio Turnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Geographic allocation Country Percent of United States 59.4 ) % United Kingdom 10.8 ) % France 8.6 ) % Switzerland 5.0 ) % Netherlands 4.1 ) % Denmark 3.2 ) % Taiwan 3.2 ) % Canada 2.0 ) % Mexico 1.8 ) % Singapore 1.1 ) % Indonesia 0.7 ) % Short-Term Securities 0.2 ) % Liabilities in Excess of Other Assets (0.1 ) % Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (a) Percent of Microsoft Corp. 4.8 % Texas Instruments, Inc. 3.3 % Apple Inc. 3.2 % Novo Nordisk A/S, Class B 3.2 % Taiwan Semiconductor Manufacturing Co. Ltd. 3.2 % Nestlé SA, Registered Shares 3.1 % AstraZeneca PLC 3.0 % AbbVie, Inc. 2.9 % UnitedHealth Group, Inc. 2.8 % RELX PLC 2.6 % (a) Excludes short-term securities. |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||||
| May 31, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | May 31, 2020 | May 31, 2019 | May 31, 2018 | May 31, 2017 | May 31, 2016 | May 31, 2015 | Jun. 01, 2014 | |
| C000172902 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Class K Shares | ||||||||||||
| Account Value | $ 18,596 | $ 18,596 | $ 18,596 | $ 15,913 | $ 16,116 | $ 16,686 | $ 12,427 | $ 12,250 | $ 11,754 | $ 11,839 | $ 10,274 | $ 10,072 | $ 10,000 |
| Average Annual Return, Percent | 16.86% | 8.71% | 6.40% | ||||||||||
| C000058059 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | ||||||||||||
| Account Value | $ 16,958 | $ 16,958 | $ 16,958 | 14,543 | 14,795 | 15,496 | 11,664 | 11,610 | 11,262 | 11,461 | 10,066 | 9,968 | 10,000 |
| Average Annual Return, Percent | 14.64% | 7.54% | 5.42% | ||||||||||
| C000058059 [Member] | Without Sales Load [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor C Shares | ||||||||||||
| Average Annual Return, Percent | 15.64% | 7.54% | 5.42% | ||||||||||
| C000058058 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||||||||||
| Account Value | $ 17,089 | $ 17,089 | $ 17,089 | 14,656 | 14,909 | 15,475 | 11,562 | 11,423 | 10,996 | 11,112 | 9,688 | 9,523 | 9,475 |
| Average Annual Return, Percent | 10.48% | 7.23% | 5.50% | ||||||||||
| C000058058 [Member] | Without Sales Load [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor A Shares | ||||||||||||
| Average Annual Return, Percent | 16.60% | 8.39% | 6.08% | ||||||||||
| C000058057 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Institutional Shares | ||||||||||||
| Account Value | $ 18,500 | $ 18,500 | $ 18,500 | 15,838 | 16,054 | 16,633 | 12,390 | 12,218 | 11,730 | 11,823 | 10,274 | 10,072 | 10,000 |
| Average Annual Return, Percent | 16.80% | 8.65% | 6.34% | ||||||||||
| MSCI All Country World Index [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||||||||||||
| Account Value | $ 22,398 | $ 22,398 | $ 22,398 | $ 18,128 | $ 17,975 | $ 19,283 | $ 13,594 | $ 12,894 | $ 13,063 | $ 11,681 | $ 9,938 | $ 10,508 | $ 10,000 |
| Average Annual Return, Percent | 23.56% | 11.68% | 8.40% |
| Shareholder Report, Holdings (Details) | May 31, 2024 | |
| C000172902 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [1] |
| C000172902 [Member] | UnitedHealth Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [1] |
| C000172902 [Member] | Nestle SA Registered Shares [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [1] |
| C000172902 [Member] | AstraZeneca PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [1] |
| C000172902 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [1] |
| C000172902 [Member] | Taiwan Semiconductor Manufacturing Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [1] |
| C000172902 [Member] | AbbVie Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | [1] |
| C000172902 [Member] | Novo Nordisk A S Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [1] |
| C000172902 [Member] | RELX PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | [1] |
| C000172902 [Member] | Texas Instruments Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | [1] |
| C000172902 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.80% | |
| C000172902 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| C000172902 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| C000172902 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000172902 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| C000172902 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000172902 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 59.40% | |
| C000172902 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | |
| C000172902 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000172902 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000172902 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.60% | |
| C000172902 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| C000172902 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| C000058059 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [2] |
| C000058059 [Member] | UnitedHealth Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [2] |
| C000058059 [Member] | Nestle SA Registered Shares [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [2] |
| C000058059 [Member] | AstraZeneca PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [2] |
| C000058059 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [2] |
| C000058059 [Member] | Taiwan Semiconductor Manufacturing Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [2] |
| C000058059 [Member] | AbbVie Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | [2] |
| C000058059 [Member] | Novo Nordisk A S Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [2] |
| C000058059 [Member] | RELX PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | [2] |
| C000058059 [Member] | Texas Instruments Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | [2] |
| C000058059 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.80% | |
| C000058059 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| C000058059 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| C000058059 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000058059 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| C000058059 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000058059 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 59.40% | |
| C000058059 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | |
| C000058059 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058059 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058059 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.60% | |
| C000058059 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| C000058059 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| C000058058 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [3] |
| C000058058 [Member] | UnitedHealth Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [3] |
| C000058058 [Member] | Nestle SA Registered Shares [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [3] |
| C000058058 [Member] | AstraZeneca PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [3] |
| C000058058 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [3] |
| C000058058 [Member] | Taiwan Semiconductor Manufacturing Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [3] |
| C000058058 [Member] | AbbVie Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | [3] |
| C000058058 [Member] | Novo Nordisk A S Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [3] |
| C000058058 [Member] | RELX PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | [3] |
| C000058058 [Member] | Texas Instruments Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | [3] |
| C000058058 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.80% | |
| C000058058 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| C000058058 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| C000058058 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000058058 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| C000058058 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000058058 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 59.40% | |
| C000058058 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | |
| C000058058 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058058 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058058 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.60% | |
| C000058058 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| C000058058 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| C000058057 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [4] |
| C000058057 [Member] | UnitedHealth Group Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [4] |
| C000058057 [Member] | Nestle SA Registered Shares [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [4] |
| C000058057 [Member] | AstraZeneca PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3% | [4] |
| C000058057 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [4] |
| C000058057 [Member] | Taiwan Semiconductor Manufacturing Co Ltd [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [4] |
| C000058057 [Member] | AbbVie Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.90% | [4] |
| C000058057 [Member] | Novo Nordisk A S Class B [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | [4] |
| C000058057 [Member] | RELX PLC [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | [4] |
| C000058057 [Member] | Texas Instruments Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | [4] |
| C000058057 [Member] | UNITED KINGDOM | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.80% | |
| C000058057 [Member] | INDONESIA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| C000058057 [Member] | NETHERLANDS | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| C000058057 [Member] | CANADA | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| C000058057 [Member] | SINGAPORE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| C000058057 [Member] | SWITZERLAND | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| C000058057 [Member] | UNITED STATES | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 59.40% | |
| C000058057 [Member] | MEXICO | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | |
| C000058057 [Member] | TAIWAN | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058057 [Member] | DENMARK | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.20% | |
| C000058057 [Member] | FRANCE | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.60% | |
| C000058057 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| C000058057 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| [1]Excludes short-term securities.[2]Excludes short-term securities.[3]Excludes short-term securities.[4]Excludes short-term securities. | ||
