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| U.S. equity funds | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Russell U.S. Core Equity | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell U.S. Core Equity Disclosures | |||||||
| Russell U.S. Defensive Equity | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell U.S. Dynamic Equity | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell U.S. Strategic Equity Fund | |||||||
| A, C, E, S Shares | ![]() | ![]() | ![]() | -- | ![]() | ![]() | |
| Russell U.S. Strategic Equity Fund Disclosures | |||||||
| Russell U.S. Small Cap Equity Fund | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell U.S. Large Cap Equity | |||||||
| A, C, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Russell U.S. Mid Cap Equity | |||||||
| A, C, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| International & global equity funds | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Russell International Developed Markets | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell International Developed Markets Disclosures | |||||||
| Russell Global Equity | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Global Equity Disclosures | |||||||
| Russell Emerging Markets | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Emerging Markets Disclosures | |||||||
| Tax-managed equity funds | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Russell Tax-Managed U.S. Large Cap | |||||||
| A, C, E, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Russell Tax-Managed U.S. Mid & Small Cap | |||||||
| A, C, E, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Fixed income funds | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Russell Global Opportunistic Credit Fund | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Strategic Bond | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Investment Grade Bond | |||||||
| A, C, E, I, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Short Duration Bond | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Tax Exempt Bond | |||||||
| A, C, E, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Russell Tax Exempt Bond Disclosures | |||||||
| Alternative and Specialty Funds | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Russell Commodity Strategies Fund | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Global Infrastructure Fund | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Global Real Estate Securities Fund | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | ![]() | ![]() | ![]() | |
| Russell Multi-Strategy Alternative Fund | |||||||
| A, C, E, S, Y Shares | ![]() | Purchase of Class Y Shares requires a current selling agreement with Russell and there is a $10 million required minimum initial investment for each account in each Fund. | ![]() | -- | ![]() | ![]() | |
| Russell Multi-Strategy Alternative Fund Disclosures | |||||||
| Russell Strategic Call Overwriting Fund | |||||||
| A, C, E, S Shares | ![]() | ![]() | ![]() | -- | ![]() | ![]() | |
| LifePoints® Funds Target Portfolio Series | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| Conservative Strategy | |||||||
| A, C, E, R1, R2, R3, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Moderate Strategy | |||||||
| A, C, E, R1, R2, R3, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Balanced Strategy | |||||||
| A, C, E, R1, R2, R3, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Growth Strategy | |||||||
| A, C, E, R1, R2, R3, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| Equity Growth Strategy | |||||||
| A, C, E, R1, R2, R3, S Shares | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
| LifePoints® Funds Target Date Series (available to DC plans only) | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| 2015 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2020 Strategy | |||||||
| A, E, R1, R2, R3, S Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2025 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2030 Strategy | |||||||
| A, E, R1, R2, R3, S Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2035 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2040 Strategy | |||||||
| A, E, R1, R2, R3, S Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2045 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2050 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2055 Strategy | |||||||
| R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| In Retirement | |||||||
| A, R1, R2, R3 Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| LifePoints® Funds Target Distribution Series | Summary Prospectus | Prospectus | Statement of additional information | Semiannual report | Annual report | Quarterly holdings report | XBRL |
| 2017 Retirement Distribution Fund - A Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |
| 2017 Retirement Distribution Fund - S Shares | -- | ![]() | ![]() | ![]() | ![]() | ![]() | |