Form N-CSR Cover
| Form N-CSR Cover | 6 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | AMERICAN CENTURY WORLD MUTUAL FUNDS, INC. |
| Entity Central Index Key | 0000872825 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
Shareholder Report
| Shareholder Report | 6 Months Ended |
| May 31, 2024 USD ($) holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | AMERICAN CENTURY WORLD MUTUAL FUNDS, INC. |
| Entity Central Index Key | 0000872825 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| C000018021 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | Investor Class |
| Trading Symbol | TWMIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $67 1.28% |
| Expenses Paid, Amount | $ 67 |
| Expense Ratio, Percent | 1.28% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000018023 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | I Class |
| Trading Symbol | AMKIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $57 1.08% |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.08% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000189777 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | Y Class |
| Trading Symbol | AEYMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Y Class $49 0.93% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.93% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000018022 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | A Class |
| Trading Symbol | AEMMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $80 1.53% |
| Expenses Paid, Amount | $ 80 |
| Expense Ratio, Percent | 1.53% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000018024 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | C Class |
| Trading Symbol | ACECX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $119 2.28% |
| Expenses Paid, Amount | $ 119 |
| Expense Ratio, Percent | 2.28% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000055528 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | R Class |
| Trading Symbol | AEMRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $93 1.78% |
| Expenses Paid, Amount | $ 93 |
| Expense Ratio, Percent | 1.78% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000189779 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | R5 Class |
| Trading Symbol | AEGMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $57 1.08% |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.08% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000131622 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | R6 Class |
| Trading Symbol | AEDMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $49 0.93% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.93% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000236495 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Fund |
| Class Name | G Class |
| Trading Symbol | ACADX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $2 0.03% |
| Expenses Paid, Amount | $ 2 |
| Expense Ratio, Percent | 0.03% |
| Net Assets | $ 1,950,750,990 |
| Holdings Count | holding | 86 |
| Advisory Fees Paid, Amount | $ 6,874,889 |
| Investment Company, Portfolio Turnover | 13% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.5% China 27.0% Short-Term Investments 1.3% India 17.7% Other Assets and Liabilities (0.8)% Taiwan 16.7% South Korea 11.5% Brazil 6.3% |
| C000167122 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | Investor Class |
| Trading Symbol | AECVX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $73 1.39% |
| Expenses Paid, Amount | $ 73 |
| Expense Ratio, Percent | 1.39% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000167123 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | I Class |
| Trading Symbol | AECSX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $62 1.19% |
| Expenses Paid, Amount | $ 62 |
| Expense Ratio, Percent | 1.19% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000167124 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | A Class |
| Trading Symbol | AECLX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $86 1.64% |
| Expenses Paid, Amount | $ 86 |
| Expense Ratio, Percent | 1.64% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000167119 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | C Class |
| Trading Symbol | AECHX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $124 2.39% |
| Expenses Paid, Amount | $ 124 |
| Expense Ratio, Percent | 2.39% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000167120 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | R Class |
| Trading Symbol | AECMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $98 1.89% |
| Expenses Paid, Amount | $ 98 |
| Expense Ratio, Percent | 1.89% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000167121 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Emerging Markets Small Cap Fund |
| Class Name | R6 Class |
| Trading Symbol | AECTX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Emerging Markets Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $54 1.04% |
| Expenses Paid, Amount | $ 54 |
| Expense Ratio, Percent | 1.04% |
| Net Assets | $ 20,163,724 |
| Holdings Count | holding | 103 |
| Advisory Fees Paid, Amount | $ 108,290 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% India 26.6% Exchange-Traded Funds 0.8% Taiwan 17.2% Short-Term Investments 2.1% South Korea 11.0% Other Assets and Liabilities (1.8)% China 8.5% Brazil 7.2% |
| C000018025 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | Investor Class |
| Trading Symbol | TWGGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $58 1.08% |
| Expenses Paid, Amount | $ 58 |
| Expense Ratio, Percent | 1.08% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000018027 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | I Class |
| Trading Symbol | AGGIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $47 0.88% |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.88% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000189780 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | Y Class |
| Trading Symbol | AGYGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Y Class $39 0.73% |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.73% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000018026 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | A Class |
| Trading Symbol | AGGRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $71 1.33% |
| Expenses Paid, Amount | $ 71 |
| Expense Ratio, Percent | 1.33% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000018030 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | C Class |
| Trading Symbol | AGLCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $111 2.08% |
| Expenses Paid, Amount | $ 111 |
| Expense Ratio, Percent | 2.08% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000018031 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | R Class |
| Trading Symbol | AGORX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $84 1.58% |
| Expenses Paid, Amount | $ 84 |
| Expense Ratio, Percent | 1.58% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000189781 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | R5 Class |
| Trading Symbol | AGFGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $47 0.88% |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.88% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000131623 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused Global Growth Fund |
| Class Name | R6 Class |
| Trading Symbol | AGGDX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused Global Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $39 0.73% |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.73% |
| Net Assets | $ 622,292,285 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 3,048,723 |
| Investment Company, Portfolio Turnover | 29% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United States 69.3% Short-Term Investments 2.2% United Kingdom 6.1% Other Assets and Liabilities (0.9)% Denmark 3.6% Netherlands 3.3% Japan 2.8% |
| C000167113 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | Investor Class |
| Trading Symbol | AFCNX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $57 1.09% |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.09% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167114 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | I Class |
| Trading Symbol | AFCSX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $47 0.89% |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.89% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167115 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | A Class |
| Trading Symbol | AFCLX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $70 1.34% |
| Expenses Paid, Amount | $ 70 |
| Expense Ratio, Percent | 1.34% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167116 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | C Class |
| Trading Symbol | AFCHX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $110 2.09% |
| Expenses Paid, Amount | $ 110 |
| Expense Ratio, Percent | 2.09% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167117 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | R Class |
| Trading Symbol | AFCWX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $84 1.59% |
| Expenses Paid, Amount | $ 84 |
| Expense Ratio, Percent | 1.59% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167118 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | R6 Class |
| Trading Symbol | AFCMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $39 0.74% |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.74% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000212502 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Focused International Growth Fund |
| Class Name | G Class |
| Trading Symbol | AFCGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Focused International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $0 0.00% |
| Expenses Paid, Amount | $ 0 |
| Expense Ratio, Percent | 0% |
| Net Assets | $ 93,906,487 |
| Holdings Count | holding | 47 |
| Advisory Fees Paid, Amount | $ 241,323 |
| Investment Company, Portfolio Turnover | 47% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.2% United Kingdom 15.2% Short-Term Investments 1.3% Japan 14.2% Other Assets and Liabilities (0.5)% Netherlands 11.4% France 11.0% Switzerland 6.6% |
| C000167125 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | Investor Class |
| Trading Symbol | AGCVX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $60 1.11% |
| Expenses Paid, Amount | $ 60 |
| Expense Ratio, Percent | 1.11% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000167126 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | I Class |
| Trading Symbol | AGCSX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $49 0.91% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.91% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000167127 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | A Class |
| Trading Symbol | AGCLX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $73 1.36% |
| Expenses Paid, Amount | $ 73 |
| Expense Ratio, Percent | 1.36% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000167128 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | C Class |
| Trading Symbol | AGCHX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $113 2.11% |
| Expenses Paid, Amount | $ 113 |
| Expense Ratio, Percent | 2.11% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000167129 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | R Class |
| Trading Symbol | AGCWX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $86 1.61% |
| Expenses Paid, Amount | $ 86 |
| Expense Ratio, Percent | 1.61% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000167130 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Small Cap Fund |
| Class Name | R6 Class |
| Trading Symbol | AGCTX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Small Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $41 0.76% |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.76% |
| Net Assets | $ 82,757,966 |
| Holdings Count | holding | 136 |
| Advisory Fees Paid, Amount | $ 400,566 |
| Investment Company, Portfolio Turnover | 58% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.2% United States 54.0% Exchange-Traded Funds 1.5% Japan 7.8% Short-Term Investments 1.7% Canada 7.3% Other Assets and Liabilities (1.4)% United Kingdom 4.5% India 3.6% |
| C000018035 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | Investor Class |
| Trading Symbol | TWIEX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $66 1.25% |
| Expenses Paid, Amount | $ 66 |
| Expense Ratio, Percent | 1.25% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000018037 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | I Class |
| Trading Symbol | TGRIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $55 1.05% |
| Expenses Paid, Amount | $ 55 |
| Expense Ratio, Percent | 1.05% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000189783 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | Y Class |
| Trading Symbol | ATYGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Y Class $48 0.90% |
| Expenses Paid, Amount | $ 48 |
| Expense Ratio, Percent | 0.90% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000018036 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | A Class |
| Trading Symbol | TWGAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $79 1.50% |
| Expenses Paid, Amount | $ 79 |
| Expense Ratio, Percent | 1.50% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000018040 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | C Class |
| Trading Symbol | AIWCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $118 2.25% |
| Expenses Paid, Amount | $ 118 |
| Expense Ratio, Percent | 2.25% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000018041 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | R Class |
| Trading Symbol | ATGRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $92 1.75% |
| Expenses Paid, Amount | $ 92 |
| Expense Ratio, Percent | 1.75% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000189784 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | R5 Class |
| Trading Symbol | ATGGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $55 1.05% |
| Expenses Paid, Amount | $ 55 |
| Expense Ratio, Percent | 1.05% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000131624 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | R6 Class |
| Trading Symbol | ATGDX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $48 0.90% |
| Expenses Paid, Amount | $ 48 |
| Expense Ratio, Percent | 0.90% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000236496 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Growth Fund |
| Class Name | G Class |
| Trading Symbol | ACAEX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Growth Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $1 0.01% |
| Expenses Paid, Amount | $ 1 |
| Expense Ratio, Percent | 0.01% |
| Net Assets | $ 2,928,263,267 |
| Holdings Count | holding | 93 |
| Advisory Fees Paid, Amount | $ 7,806,415 |
| Investment Company, Portfolio Turnover | 32% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.3% United Kingdom 18.4% Short-Term Investments 1.7% Japan 16.9% Other Assets and Liabilities (1.0)% France 16.5% Netherlands 8.4% Switzerland 7.2% |
| C000018042 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Opportunities Fund |
| Class Name | Investor Class |
| Trading Symbol | AIOIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Opportunities Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $82 1.56% |
| Expenses Paid, Amount | $ 82 |
| Expense Ratio, Percent | 1.56% |
| Net Assets | $ 442,882,044 |
| Holdings Count | holding | 135 |
| Advisory Fees Paid, Amount | $ 3,335,804 |
| Investment Company, Portfolio Turnover | 61% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 100.2% Japan 16.5% Exchange-Traded Funds 0.0% Canada 9.0% Short-Term Investments 1.4% India 8.3% Other Assets and Liabilities (1.6)% United Kingdom 8.3% Taiwan 7.6% |
| C000018043 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Opportunities Fund |
| Class Name | I Class |
| Trading Symbol | ACIOX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Opportunities Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $72 1.36% |
| Expenses Paid, Amount | $ 72 |
| Expense Ratio, Percent | 1.36% |
| Net Assets | $ 442,882,044 |
| Holdings Count | holding | 135 |
| Advisory Fees Paid, Amount | $ 3,335,804 |
| Investment Company, Portfolio Turnover | 61% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 100.2% Japan 16.5% Exchange-Traded Funds 0.0% Canada 9.0% Short-Term Investments 1.4% India 8.3% Other Assets and Liabilities (1.6)% United Kingdom 8.3% Taiwan 7.6% |
| C000088079 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Opportunities Fund |
| Class Name | A Class |
| Trading Symbol | AIVOX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Opportunities Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $95 1.81% |
| Expenses Paid, Amount | $ 95 |
| Expense Ratio, Percent | 1.81% |
| Net Assets | $ 442,882,044 |
| Holdings Count | holding | 135 |
| Advisory Fees Paid, Amount | $ 3,335,804 |
| Investment Company, Portfolio Turnover | 61% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 100.2% Japan 16.5% Exchange-Traded Funds 0.0% Canada 9.0% Short-Term Investments 1.4% India 8.3% Other Assets and Liabilities (1.6)% United Kingdom 8.3% Taiwan 7.6% |
| C000088080 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Opportunities Fund |
| Class Name | C Class |
| Trading Symbol | AIOCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Opportunities Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $134 2.56% |
| Expenses Paid, Amount | $ 134 |
| Expense Ratio, Percent | 2.56% |
| Net Assets | $ 442,882,044 |
| Holdings Count | holding | 135 |
| Advisory Fees Paid, Amount | $ 3,335,804 |
| Investment Company, Portfolio Turnover | 61% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 100.2% Japan 16.5% Exchange-Traded Funds 0.0% Canada 9.0% Short-Term Investments 1.4% India 8.3% Other Assets and Liabilities (1.6)% United Kingdom 8.3% Taiwan 7.6% |
| C000088081 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Opportunities Fund |
| Class Name | R Class |
| Trading Symbol | AIORX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Opportunities Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $108 2.06% |
| Expenses Paid, Amount | $ 108 |
| Expense Ratio, Percent | 2.06% |
| Net Assets | $ 442,882,044 |
| Holdings Count | holding | 135 |
| Advisory Fees Paid, Amount | $ 3,335,804 |
| Investment Company, Portfolio Turnover | 61% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 100.2% Japan 16.5% Exchange-Traded Funds 0.0% Canada 9.0% Short-Term Investments 1.4% India 8.3% Other Assets and Liabilities (1.6)% United Kingdom 8.3% Taiwan 7.6% |
| C000152811 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Small-Mid Cap Fund |
| Class Name | Investor Class |
| Trading Symbol | ANTSX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Small-Mid Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $78 1.44% |
| Expenses Paid, Amount | $ 78 |
| Expense Ratio, Percent | 1.44% |
| Net Assets | $ 564,397,983 |
| Holdings Count | holding | 118 |
| Advisory Fees Paid, Amount | $ 638,567 |
| Investment Company, Portfolio Turnover | 55% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.1% Japan 26.4% Exchange-Traded Funds 0.0% United Kingdom 13.0% Short-Term Investments 0.5% Australia 9.9% Other Assets and Liabilities 0.4% Canada 6.9% Spain 5.8% |
| C000152812 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Small-Mid Cap Fund |
| Class Name | G Class |
| Trading Symbol | ANTMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Small-Mid Cap Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $1 0.01% |
| Expenses Paid, Amount | $ 1 |
| Expense Ratio, Percent | 0.01% |
| Net Assets | $ 564,397,983 |
| Holdings Count | holding | 118 |
| Advisory Fees Paid, Amount | $ 638,567 |
| Investment Company, Portfolio Turnover | 55% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 99.1% Japan 26.4% Exchange-Traded Funds 0.0% United Kingdom 13.0% Short-Term Investments 0.5% Australia 9.9% Other Assets and Liabilities 0.4% Canada 6.9% Spain 5.8% |
| C000018052 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | Investor Class |
| Trading Symbol | ACEVX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $60 1.11% |
| Expenses Paid, Amount | $ 60 |
| Expense Ratio, Percent | 1.11% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000018053 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | I Class |
| Trading Symbol | ACVUX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $49 0.91% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.91% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000018054 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | A Class |
| Trading Symbol | MEQAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $73 1.36% |
| Expenses Paid, Amount | $ 73 |
| Expense Ratio, Percent | 1.36% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000018056 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | C Class |
| Trading Symbol | ACCOX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $113 2.11% |
| Expenses Paid, Amount | $ 113 |
| Expense Ratio, Percent | 2.11% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000018057 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | R Class |
| Trading Symbol | ACVRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $86 1.61% |
| Expenses Paid, Amount | $ 86 |
| Expense Ratio, Percent | 1.61% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000131625 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | R6 Class |
| Trading Symbol | ACVDX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $41 0.76% |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.76% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000236497 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | International Value Fund |
| Class Name | G Class |
| Trading Symbol | ACAFX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about International Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $1 0.01% |
| Expenses Paid, Amount | $ 1 |
| Expense Ratio, Percent | 0.01% |
| Net Assets | $ 1,555,231,363 |
| Holdings Count | holding | 169 |
| Advisory Fees Paid, Amount | $ 1,326,950 |
| Investment Company, Portfolio Turnover | 34% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.9% Japan 24.0% Short-Term Investments 4.1% United Kingdom 18.4% Other Assets and Liabilities (3.0)% France 11.9% Germany 7.3% Italy 6.4% |
| C000205778 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | Investor Class |
| Trading Symbol | ANTUX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $63 1.19% |
| Expenses Paid, Amount | $ 63 |
| Expense Ratio, Percent | 1.19% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
| C000216231 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | I Class |
| Trading Symbol | ANVHX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $53 0.99% |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 0.99% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
| C000216232 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | A Class |
| Trading Symbol | ANVLX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $77 1.44% |
| Expenses Paid, Amount | $ 77 |
| Expense Ratio, Percent | 1.44% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
| C000216233 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | R Class |
| Trading Symbol | ANVRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $90 1.69% |
| Expenses Paid, Amount | $ 90 |
| Expense Ratio, Percent | 1.69% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
| C000216230 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | R6 Class |
| Trading Symbol | ANVMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment R6 Class $45 0.84% |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.84% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
| C000205779 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Non-U.S. Intrinsic Value Fund |
| Class Name | G Class |
| Trading Symbol | ANTGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Non-U.S. Intrinsic Value Fund for the period December 1, 2023 to May 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 americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) The below table explains the costs that you would have paid within the reporting period. Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment G Class $2 0.04% |
| Expenses Paid, Amount | $ 2 |
| Expense Ratio, Percent | 0.04% |
| Net Assets | $ 608,015,814 |
| Holdings Count | holding | 53 |
| Advisory Fees Paid, Amount | $ 620,847 |
| Investment Company, Portfolio Turnover | 30% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.7% United Kingdom 28.7% Short-Term Investments 0.6% France 16.8% Other Assets and Liabilities 0.7% South Korea 9.8% Netherlands 7.8% Switzerland 7.2% |
Shareholder Report, Holdings (D
| Shareholder Report, Holdings (Details) | May 31, 2024 |
| C000018021 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000018021 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000018021 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000018021 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000018021 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000018021 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000018021 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000018021 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000018023 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000018023 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000018023 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000018023 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000018023 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000018023 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000018023 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000018023 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000189777 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000189777 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000189777 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000189777 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000189777 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000189777 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000189777 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000189777 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000018022 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000018022 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000018022 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000018022 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000018022 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000018022 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000018022 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000018022 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000018024 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000018024 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000018024 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000018024 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000018024 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000018024 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000018024 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000018024 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000055528 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000055528 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000055528 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000055528 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000055528 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000055528 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000055528 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000055528 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000189779 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000189779 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000189779 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000189779 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000189779 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000189779 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000189779 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000189779 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000131622 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000131622 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000131622 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000131622 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000131622 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000131622 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000131622 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000131622 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000236495 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000236495 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000236495 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000236495 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000236495 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000236495 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.50% |
| C000236495 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000236495 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.80%) |
| C000167122 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167122 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167122 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167122 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167122 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167122 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167122 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167122 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167122 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000167123 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167123 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167123 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167123 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167123 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167123 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167123 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167123 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167123 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000167124 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167124 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167124 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167124 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167124 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167124 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167124 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167124 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167124 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000167119 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167119 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167119 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167119 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167119 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167119 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167119 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167119 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167119 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000167120 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167120 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167120 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167120 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167120 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167120 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167120 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167120 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167120 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000167121 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000167121 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.60% |
| C000167121 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000167121 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167121 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000167121 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000167121 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000167121 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.80%) |
| C000167121 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000018025 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000018025 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000018025 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000018025 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000018025 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000018025 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000018025 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000018025 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000018027 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000018027 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000018027 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000018027 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000018027 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000018027 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000018027 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000018027 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000189780 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000189780 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000189780 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000189780 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000189780 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000189780 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000189780 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000189780 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000018026 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000018026 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000018026 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000018026 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000018026 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000018026 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000018026 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000018026 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000018030 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000018030 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000018030 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000018030 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000018030 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000018030 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000018030 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000018030 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000018031 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000018031 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000018031 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000018031 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000018031 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000018031 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000018031 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000018031 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000189781 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000189781 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000189781 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000189781 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000189781 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000189781 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000189781 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000189781 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000131623 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.30% |
| C000131623 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000131623 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000131623 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000131623 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000131623 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000131623 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000131623 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.90%) |
| C000167113 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167113 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167113 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167113 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167113 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167113 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167113 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167113 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167114 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167114 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167114 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167114 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167114 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167114 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167114 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167114 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167115 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167115 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167115 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167115 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167115 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167115 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167115 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167115 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167116 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167116 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167116 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167116 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167116 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167116 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167116 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167116 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167117 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167117 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167117 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167117 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167117 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167117 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167117 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167117 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167118 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000167118 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000167118 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000167118 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000167118 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000167118 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000167118 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000167118 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000212502 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000212502 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
| C000212502 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000212502 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000212502 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000212502 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| C000212502 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000212502 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.50%) |
| C000167125 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167125 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167125 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167125 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167125 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167125 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167125 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167125 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167125 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000167126 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167126 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167126 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167126 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167126 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167126 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167126 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167126 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167126 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000167127 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167127 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167127 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167127 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167127 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167127 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167127 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167127 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167127 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000167128 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167128 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167128 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167128 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167128 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167128 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167128 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167128 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167128 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000167129 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167129 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167129 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167129 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167129 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167129 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167129 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167129 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167129 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000167130 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000167130 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54% |
| C000167130 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000167130 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000167130 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000167130 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000167130 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000167130 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.40%) |
| C000167130 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000018035 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018035 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000018035 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000018035 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018035 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000018035 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000018035 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000018035 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000018037 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018037 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000018037 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000018037 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018037 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000018037 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000018037 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000018037 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000189783 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000189783 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000189783 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000189783 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000189783 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000189783 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000189783 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000189783 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
| C000018036 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018036 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000018036 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000018036 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018036 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000018036 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000018036 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000018036 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018040 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000018040 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000018040 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018040 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000018040 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000018040 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
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| Holdings [Line Items] | |
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| Holdings [Line Items] | |
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| C000018041 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000018041 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000018041 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018041 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000018041 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000018041 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000018041 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
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| C000189784 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000189784 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000189784 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000189784 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000189784 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000189784 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000189784 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000189784 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
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| Holdings [Line Items] | |
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| C000131624 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
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| C000131624 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000131624 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000131624 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000131624 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000131624 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000131624 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
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| Holdings [Line Items] | |
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| C000236496 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
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| C000236496 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.90% |
| C000236496 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000236496 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000236496 [Member] | Common Stock [Member] | |
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| Percent of Net Asset Value | 99.30% |
| C000236496 [Member] | Short-Term Investment [Member] | |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.00%) |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000018042 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000018042 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000018042 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018042 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000018042 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100.20% |
| C000018042 [Member] | Short-Term Investment [Member] | |
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| Holdings [Line Items] | |
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| C000018042 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
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| Holdings [Line Items] | |
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| C000018043 [Member] | UNITED KINGDOM | |
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| Percent of Net Asset Value | 8.30% |
| C000018043 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000018043 [Member] | CANADA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| C000018043 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
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| C000018043 [Member] | Short-Term Investment [Member] | |
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| C000018043 [Member] | Exchange-Traded Fund [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000088079 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000088079 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000088079 [Member] | CANADA | |
| Holdings [Line Items] | |
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| C000088079 [Member] | Exchange-Traded Fund [Member] | |
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| Holdings [Line Items] | |
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| C000088080 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
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| C000088080 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
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| Percent of Net Asset Value | 11.90% |
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| C000018053 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000018053 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000018053 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000018053 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000018053 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000018053 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
| C000018054 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018054 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000018054 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000018054 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000018054 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000018054 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000018054 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000018054 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
| C000018056 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018056 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000018056 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000018056 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000018056 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000018056 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000018056 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000018056 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
| C000018057 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000018057 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000018057 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000018057 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000018057 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000018057 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000018057 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000018057 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000131625 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000131625 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000131625 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000131625 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000131625 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000131625 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000131625 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
| C000236497 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.40% |
| C000236497 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000236497 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000236497 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000236497 [Member] | ITALY | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000236497 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000236497 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000236497 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.00%) |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000205778 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000205778 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000205778 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000205778 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000205778 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000205778 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000205778 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
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| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000216231 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000216231 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000216231 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000216231 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000216231 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000216231 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000216231 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000216232 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000216232 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000216232 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000216232 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000216232 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000216232 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000216232 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000216232 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000216233 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000216233 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000216233 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000216233 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000216233 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000216233 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000216233 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000216233 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000216230 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000216230 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000216230 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000216230 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000216230 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000216230 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000216230 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000216230 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000205779 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000205779 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000205779 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000205779 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000205779 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000205779 [Member] | Common Stock [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000205779 [Member] | Short-Term Investment [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000205779 [Member] | Other Assets and Liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |