v3.26.1
Fees and Expenses
Oct. 31, 2025
Nuveen Equity Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 100 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Equity Index Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Equity Index Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04% 0.04% 0.04%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.07% [1] 0.05% [1] 0.00% 0.00% 0.25% 0.00%
Expenses (as a percentage of Assets) 0.36% 0.09% 0.19% 0.04% 0.29% 0.04%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.04%) [3]
Net Expenses (as a percentage of Assets) 0.36% 0.09% 0.19% 0.04% 0.29% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.44% of average daily net assets for Class A shares; (ii) 0.24% of average daily net assets for Class I shares; (iii) 0.24% of average daily net assets for Premier Class shares; (iv) 0.09% of average daily net assets for Class R6 shares; (v) 0.34% of average daily net assets for Retirement Class shares; and (vi) 0.09% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Equity Index Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 610 $ 9 $ 19 $ 4 $ 30 $ 0
Expense Example, with Redemption, 3 Years 684 29 61 13 93 0
Expense Example, with Redemption, 5 Years 765 51 107 23 163 0
Expense Example, with Redemption, 10 Years $ 1,004 $ 115 $ 243 $ 51 $ 368 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 7% of the average value of its portfolio.

Portfolio Turnover, Rate 7.00%
Nuveen Equity Index Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Equity Index Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Growth Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Large Cap Growth Index Fund
Class I
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00%
Maximum Account Fee (as a percentage of Assets) 0.00% 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Large Cap Growth Index Fund
Class I
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04%
Other Expenses (as a percentage of Assets): 0.08% 0.01% 0.25% 0.01% [1]
Expenses (as a percentage of Assets) 0.12% 0.05% 0.29% 0.05%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% (0.05%) [3]
Net Expenses (as a percentage of Assets) 0.12% 0.05% 0.29% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Estimate is for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.24% of average daily net assets for Class I shares; (ii) 0.09% of average daily net assets for Class R6 shares; (iii) 0.34% of average daily net assets for Retirement Class shares; and (iv) 0.09% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Large Cap Growth Index Fund - USD ($)
Class I
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 12 $ 5 $ 30 $ 0
Expense Example, with Redemption, 3 Years 39 16 93 0
Expense Example, with Redemption, 5 Years 68 28 163 0
Expense Example, with Redemption, 10 Years $ 154 $ 64 $ 368 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 27% of the average value of its portfolio.

Portfolio Turnover, Rate 27.00%
Nuveen Large Cap Growth Index Fund | Class W  
Prospectus [Line Items]  
Other Expenses, New Fund, Based on Estimates [Text] Estimate is for the current fiscal year.
Nuveen Large Cap Value Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Large Cap Value Index Fund
Class I
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00%
Maximum Account Fee (as a percentage of Assets) 0.00% 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Large Cap Value Index Fund
Class I
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04%
Other Expenses (as a percentage of Assets): 0.10% [1] 0.01% 0.26% 0.01% [2]
Expenses (as a percentage of Assets) 0.14% 0.05% 0.30% 0.05%
Fee Waiver or Reimbursement [3] 0.00% 0.00% 0.00% (0.05%) [4]
Net Expenses (as a percentage of Assets) 0.14% 0.05% 0.30% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Estimate is for the current fiscal year.

[3]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.24% of average daily net assets for Class I shares; (ii) 0.09% of average daily net assets for Class R6 shares; (iii) 0.34% of average daily net assets for Retirement Class shares; and (iv) 0.09% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[4]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Large Cap Value Index Fund - USD ($)
Class I
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 14 $ 5 $ 31 $ 0
Expense Example, with Redemption, 3 Years 45 16 97 0
Expense Example, with Redemption, 5 Years 79 28 169 0
Expense Example, with Redemption, 10 Years $ 179 $ 64 $ 381 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 31% of the average value of its portfolio.

Portfolio Turnover, Rate 31.00%
Nuveen Large Cap Value Index Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Value Index Fund | Class W  
Prospectus [Line Items]  
Other Expenses, New Fund, Based on Estimates [Text] Estimate is for the current fiscal year.
Nuveen S&P 500 Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen S&P 500 Index Fund
Class I
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00%
Maximum Account Fee (as a percentage of Assets) 0.00% 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen S&P 500 Index Fund
Class I
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04%
Other Expenses (as a percentage of Assets): 0.15% [1] 0.01% 0.26% 0.01% [2]
Expenses (as a percentage of Assets) 0.19% 0.05% 0.30% 0.05%
Fee Waiver or Reimbursement [3] 0.00% 0.00% 0.00% (0.05%) [4]
Net Expenses (as a percentage of Assets) 0.19% 0.05% 0.30% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Estimate is for the current fiscal year.

[3]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.24% of average daily net assets for Class I shares; (ii) 0.09% of average daily net assets for Class R6 shares; (iii) 0.34% of average daily net assets for Retirement Class shares; and (iv) 0.09% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[4]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen S&P 500 Index Fund - USD ($)
Class I
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 19 $ 5 $ 31 $ 0
Expense Example, with Redemption, 3 Years 61 16 97 0
Expense Example, with Redemption, 5 Years 107 28 169 0
Expense Example, with Redemption, 10 Years $ 243 $ 64 $ 381 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 8% of the average value of its portfolio.

Portfolio Turnover, Rate 8.00%
Nuveen S&P 500 Index Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen S&P 500 Index Fund | Class W  
Prospectus [Line Items]  
Other Expenses, New Fund, Based on Estimates [Text] Estimate is for the current fiscal year.
Nuveen Small Cap Blend Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Small Cap Blend Index Fund
Class I
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00%
Maximum Account Fee (as a percentage of Assets) 0.00% 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Small Cap Blend Index Fund
Class I
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04%
Other Expenses (as a percentage of Assets): 0.13% [1] 0.01% 0.26% 0.01% [2]
Expenses (as a percentage of Assets) 0.17% 0.05% 0.30% 0.05%
Fee Waiver or Reimbursement [3] 0.00% 0.00% 0.00% (0.05%) [4]
Net Expenses (as a percentage of Assets) 0.17% 0.05% 0.30% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Estimate is for the current fiscal year.

[3]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.24% of average daily net assets for Class I shares; (ii) 0.09% of average daily net assets for Class R6 shares; (iii) 0.34% of average daily net assets for Retirement Class shares; and (iv) 0.09% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees. Additionally, pursuant to a Shareholder Servicing Plan with respect to Class I shares, payments to financial intermediaries under the Shareholder Servicing Plan are subject to maximum rates and Teachers Advisors, LLC has agreed to reimburse the Fund if total Class I expenses (subject to certain exclusions) exceed certain specified amounts. Because of the Shareholder Servicing Plan, Total annual Fund operating expenses after fee waiver and/or expense reimbursement for Class I shares will be less than the expense limitation. The Board of Trustees must annually approve the continuance of, as well as any material changes to, the Shareholder Servicing Plan.

[4]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also

assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Small Cap Blend Index Fund - USD ($)
Class I
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 17 $ 5 $ 31 $ 0
Expense Example, with Redemption, 3 Years 55 16 97 0
Expense Example, with Redemption, 5 Years 96 28 169 0
Expense Example, with Redemption, 10 Years $ 217 $ 64 $ 381 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 13% of the average value of its portfolio.

Portfolio Turnover, Rate 13.00%
Nuveen Small Cap Blend Index Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Small Cap Blend Index Fund | Class W  
Prospectus [Line Items]  
Other Expenses, New Fund, Based on Estimates [Text] Estimate is for the current fiscal year.
Nuveen Emerging Markets Equity Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 100 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Emerging Markets Equity Index Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Emerging Markets Equity Index Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.10% 0.10% 0.10% 0.10% 0.10% 0.10%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.16% [1] 0.14% 0.05% 0.05% 0.30% 0.05%
Expenses (as a percentage of Assets) 0.51% 0.24% 0.30% 0.15% 0.40% 0.15%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.15%) [3]
Net Expenses (as a percentage of Assets) 0.51% 0.24% 0.30% 0.15% 0.40% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.56% of average daily net assets for Class A shares; (ii) 0.36% of average daily net assets for Class I shares; (iii) 0.36% of average daily net assets for Premier Class shares; (iv) 0.21% of average daily net assets for Class R6 shares; (v) 0.46% of average daily net assets for Retirement Class shares; and (vi) 0.21% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain

the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Emerging Markets Equity Index Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 624 $ 25 $ 31 $ 15 $ 41 $ 0
Expense Example, with Redemption, 3 Years 729 77 97 48 128 0
Expense Example, with Redemption, 5 Years 844 135 169 85 224 0
Expense Example, with Redemption, 10 Years $ 1,179 $ 306 $ 381 $ 192 $ 505 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 14% of the average value of its portfolio.

Portfolio Turnover, Rate 14.00%
Nuveen Emerging Markets Equity Index Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Equity Index Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen International Equity Index Fund
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Account Fee (as a percentage of Assets) 0.00% 0.00% 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen International Equity Index Fund
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.04% 0.04% 0.04% 0.04% 0.04%
Distribution and Service (12b-1) Fees 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.14% 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.18% 0.20% 0.05% 0.30% 0.05%
Fee Waiver or Reimbursement [1] 0.00% 0.00% 0.00% 0.00% (0.05%) [2]
Net Expenses (as a percentage of Assets) 0.18% 0.20% 0.05% 0.30% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.30% of average daily net assets for Class I shares; (ii) 0.30% of average daily net assets for Premier Class shares; (iii) 0.15% of average daily net assets for Class R6 shares; (iv) 0.40% of average daily net assets for Retirement Class shares; and (v) 0.15% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[2]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in

the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen International Equity Index Fund - USD ($)
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 18 $ 20 $ 5 $ 31 $ 0
Expense Example, with Redemption, 3 Years 58 64 16 97 0
Expense Example, with Redemption, 5 Years 101 113 28 169 0
Expense Example, with Redemption, 10 Years $ 230 $ 255 $ 64 $ 381 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 9% of the average value of its portfolio.

Portfolio Turnover, Rate 9.00%
Nuveen Emerging Markets Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 90 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Emerging Markets Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Emerging Markets Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.84% 0.84% 0.84% 0.84% 0.84% 0.84%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.19% [1] 0.19% [1] 0.05% 0.05% 0.30% 0.05%
Expenses (as a percentage of Assets) 1.28% 1.03% 1.04% 0.89% 1.14% 0.89%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.89%) [3]
Net Expenses (as a percentage of Assets) 1.28% 1.03% 1.04% 0.89% 1.14% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 1.30% of average daily net assets for Class A shares; (ii) 1.10% of average daily net assets for Class I shares; (iii) 1.10% of average daily net assets for Premier Class shares; (iv) 0.95% of average daily net assets for Class R6 shares; (v) 1.20% of average daily net assets for Retirement Class shares; and (vi) 0.95% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense

reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Emerging Markets Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 698 $ 105 $ 106 $ 91 $ 116 $ 0
Expense Example, with Redemption, 3 Years 958 328 331 284 362 0
Expense Example, with Redemption, 5 Years 1,237 569 574 493 628 0
Expense Example, with Redemption, 10 Years $ 2,031 $ 1,259 $ 1,271 $ 1,096 $ 1,386 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 112% of the average value of its portfolio.

Portfolio Turnover, Rate 112.00%
Nuveen Emerging Markets Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Emerging Markets Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 90 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen International Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen International Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.44% 0.44% 0.44% 0.44% 0.44% 0.44%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.13% [1] 0.11% [1] 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.82% 0.55% 0.60% 0.45% 0.70% 0.45%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.45%) [3]
Net Expenses (as a percentage of Assets) 0.82% 0.55% 0.60% 0.45% 0.70% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.95% of average daily net assets for Class A shares; (ii) 0.75% of average daily net assets for Class I shares; (iii) 0.75% of average daily net assets for Premier Class shares; (iv) 0.60% of average daily net assets for Class R6 shares; (v) 0.85% of average daily net assets for Retirement Class shares; and (vi) 0.60% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen International Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 654 $ 56 $ 61 $ 46 $ 72 $ 0
Expense Example, with Redemption, 3 Years 822 176 192 144 224 0
Expense Example, with Redemption, 5 Years 1,004 307 335 252 390 0
Expense Example, with Redemption, 10 Years $ 1,530 $ 689 $ 750 $ 567 $ 871 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

Portfolio Turnover, Rate 25.00%
Nuveen International Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Opportunities Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 90 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen International Opportunities Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen International Opportunities Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.58% 0.58% 0.58% 0.58% 0.58% 0.58%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.14% [1] 0.10% [1] 0.02% 0.02% 0.27% 0.02%
Expenses (as a percentage of Assets) 0.97% 0.68% 0.75% 0.60% 0.85% 0.60%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.60%) [3]
Net Expenses (as a percentage of Assets) 0.97% 0.68% 0.75% 0.60% 0.85% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 1.05% of average daily net assets for Class A shares; (ii) 0.85% of average daily net assets for Class I shares; (iii) 0.85% of average daily net assets for Premier Class shares; (iv) 0.70% of average daily net assets for Class R6 shares; (v) 0.95% of average daily net assets for Retirement Class shares; and (vi) 0.70% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen International Opportunities Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 668 $ 69 $ 77 $ 61 $ 87 $ 0
Expense Example, with Redemption, 3 Years 866 218 240 192 271 0
Expense Example, with Redemption, 5 Years 1,080 379 417 335 471 0
Expense Example, with Redemption, 10 Years $ 1,696 $ 847 $ 930 $ 750 $ 1,049 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 58% of the average value of its portfolio.

Portfolio Turnover, Rate 58.00%
Nuveen International Opportunities Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Opportunities Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant International Small Cap Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 90 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Quant International Small Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Quant International Small Cap Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.64% 0.64% 0.64% 0.64% 0.64% 0.64%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.20% [1] 0.18% [1] 0.12% 0.07% 0.32% 0.07%
Expenses (as a percentage of Assets) 1.09% 0.82% 0.91% 0.71% 0.96% 0.71%
Fee Waiver or Reimbursement [2] 0.00% 0.00% (0.01%) 0.00% 0.00% (0.71%) [3]
Net Expenses (as a percentage of Assets) 1.09% 0.82% 0.90% 0.71% 0.96% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 1.10% of average daily net assets for Class A shares; (ii) 0.90% of average daily net assets for Class I shares; (iii) 0.90% of average daily net assets for Premier Class shares; (iv) 0.75% of average daily net assets for Class R6 shares; (v) 1.00% of average daily net assets for Retirement Class shares; and (vi) 0.75% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Quant International Small Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 680 $ 84 $ 92 $ 73 $ 98 $ 0
Expense Example, with Redemption, 3 Years 902 262 289 227 306 0
Expense Example, with Redemption, 5 Years 1,141 455 503 395 531 0
Expense Example, with Redemption, 10 Years $ 1,827 $ 1,014 $ 1,119 $ 883 $ 1,178 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 112% of the average value of its portfolio.

Portfolio Turnover, Rate 112.00%
Nuveen Quant International Small Cap Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant International Small Cap Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Responsible Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 90 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen International Responsible Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen International Responsible Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Management Fees (as a percentage of Assets) 0.30% 0.30% 0.30% 0.30% 0.30%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.16% [1] 0.07% [1] 0.04% 0.03% 0.28%
Expenses (as a percentage of Assets) 0.71% 0.37% 0.49% 0.33% 0.58%
Fee Waiver or Reimbursement [2] (0.13%) (0.13%) (0.13%) (0.13%) (0.13%)
Net Expenses (as a percentage of Assets) 0.58% 0.24% 0.36% 0.20% 0.45%
Fee Waiver or Reimbursement over Assets, Date of Termination July 31, 2028 July 31, 2028 July 31, 2028 July 31, 2028 July 31, 2028
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.75% of average daily net assets for Class A shares; (ii) 0.55% of average daily net assets for Class I shares; (iii) 0.55% of average daily net assets for Premier Class shares; (iv) 0.40% of average daily net assets for Class R6 shares; and (v) 0.65% of average daily net assets for Retirement Class shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees. Nuveen Fund Advisors has also agreed to waive fees and/or reimburse expenses to reduce the maximum Total annual operating expenses detailed above for each class of the Fund by 0.13%. This waiver and/or reimbursement arrangement may be terminated or modified prior to July 31, 2028 only with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in

the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen International Responsible Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Expense Example, with Redemption, 1 Year $ 631 $ 25 $ 37 $ 20 $ 46
Expense Example, with Redemption, 3 Years 760 88 127 75 155
Expense Example, with Redemption, 5 Years 919 177 244 155 294
Expense Example, with Redemption, 10 Years $ 1,380 $ 438 $ 587 $ 388 $ 697
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 21% of the average value of its portfolio.

Portfolio Turnover, Rate 21.00%
Nuveen International Responsible Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen International Responsible Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Core Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Core Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Core Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.39% 0.39% 0.39% 0.39% 0.39% 0.39%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.08% [1] 0.08% [1] 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.72% 0.47% 0.55% 0.40% 0.65% 0.40%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.40%) [3]
Net Expenses (as a percentage of Assets) 0.72% 0.47% 0.55% 0.40% 0.65% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.87% of average daily net assets for Class A shares; (ii) 0.67% of average daily net assets for Class I shares; (iii) 0.67% of average daily net assets for Premier Class shares; (iv) 0.52% of average daily net assets for Class R6 shares; (v) 0.77% of average daily net assets for Retirement Class shares; and (vi) 0.52% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Core Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 644 $ 48 $ 56 $ 41 $ 66 $ 0
Expense Example, with Redemption, 3 Years 792 151 176 128 208 0
Expense Example, with Redemption, 5 Years 953 263 307 224 362 0
Expense Example, with Redemption, 10 Years $ 1,418 $ 591 $ 689 $ 505 $ 810 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 117% of the average value of its portfolio.

Portfolio Turnover, Rate 117.00%
Nuveen Core Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Core Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Large Cap Growth Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Large Cap Growth Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.39% 0.39% 0.39% 0.39% 0.39% 0.39%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.10% [1] 0.04% [1] 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.74% 0.43% 0.55% 0.40% 0.65% 0.40%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.40%) [3]
Net Expenses (as a percentage of Assets) 0.74% 0.43% 0.55% 0.40% 0.65% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.87% of average daily net assets for Class A shares; (ii) 0.67% of average daily net assets for Class I shares; (iii) 0.67% of average daily net assets for Premier Class shares; (iv) 0.52% of average daily net assets for Class R6 shares; (v) 0.77% of average daily net assets for Retirement Class shares; and (vi) 0.52% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Large Cap Growth Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 646 $ 44 $ 56 $ 41 $ 66 $ 0
Expense Example, with Redemption, 3 Years 798 138 176 128 208 0
Expense Example, with Redemption, 5 Years 963 241 307 224 362 0
Expense Example, with Redemption, 10 Years $ 1,441 $ 542 $ 689 $ 505 $ 810 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 41% of the average value of its portfolio.

Portfolio Turnover, Rate 41.00%
Nuveen Large Cap Growth Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Growth Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Value Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Large Cap Value Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Large Cap Value Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.39% 0.39% 0.39% 0.39% 0.39% 0.39%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.10% [1] 0.04% [1] 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.74% 0.43% 0.55% 0.40% 0.65% 0.40%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.40%) [3]
Net Expenses (as a percentage of Assets) 0.74% 0.43% 0.55% 0.40% 0.65% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.87% of average daily net assets for Class A shares; (ii) 0.67% of average daily net assets for Class I shares; (iii) 0.67% of average daily net assets for Premier Class shares; (iv) 0.52% of average daily net assets for Class R6 shares; (v) 0.77% of average daily net assets for Retirement Class shares; and (vi) 0.52% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Large Cap Value Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 646 $ 44 $ 56 $ 41 $ 66 $ 0
Expense Example, with Redemption, 3 Years 798 138 176 128 208 0
Expense Example, with Redemption, 5 Years 963 241 307 224 362 0
Expense Example, with Redemption, 10 Years $ 1,441 $ 542 $ 689 $ 505 $ 810 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 17% of the average value of its portfolio.

Portfolio Turnover, Rate 17.00%
Nuveen Large Cap Value Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Value Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Mid Cap Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Quant Mid Cap Growth Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Quant Mid Cap Growth Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Management Fees (as a percentage of Assets) 0.47% 0.47% 0.47% 0.47% 0.47%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.13% [1] 0.19% [1] 0.03% 0.03% 0.28%
Expenses (as a percentage of Assets) 0.85% 0.66% 0.65% 0.50% 0.75%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00%
Net Expenses (as a percentage of Assets) 0.85% 0.66% 0.65% 0.50% 0.75%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.90% of average daily net assets for Class A shares; (ii) 0.70% of average daily net assets for Class I shares; (iii) 0.70% of average daily net assets for Premier Class shares; (iv) 0.55% of average daily net assets for Class R6 shares; and (v) 0.80% of average daily net assets for Retirement Class shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the duration noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Quant Mid Cap Growth Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Expense Example, with Redemption, 1 Year $ 657 $ 67 $ 66 $ 51 $ 77
Expense Example, with Redemption, 3 Years 831 211 208 160 240
Expense Example, with Redemption, 5 Years 1,019 368 362 280 417
Expense Example, with Redemption, 10 Years $ 1,564 $ 822 $ 810 $ 628 $ 930
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected

in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 171% of the average value of its portfolio.

Portfolio Turnover, Rate 171.00%
Nuveen Quant Mid Cap Growth Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Mid Cap Growth Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Mid Cap Value Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Mid Cap Value Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Mid Cap Value Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Management Fees (as a percentage of Assets) 0.44% 0.44% 0.44% 0.44% 0.44%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.11% [1] 0.11% [1] 0.02% 0.02% 0.27%
Expenses (as a percentage of Assets) 0.80% 0.55% 0.61% 0.46% 0.71%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00%
Net Expenses (as a percentage of Assets) 0.80% 0.55% 0.61% 0.46% 0.71%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.90% of average daily net assets for Class A shares; (ii) 0.70% of average daily net assets for Class I shares; (iii) 0.70% of average daily net assets for Premier Class shares; (iv) 0.55% of average daily net assets for Class R6 shares; and (v) 0.80% of average daily net assets for Retirement Class shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the duration noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Mid Cap Value Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Expense Example, with Redemption, 1 Year $ 652 $ 56 $ 62 $ 47 $ 73
Expense Example, with Redemption, 3 Years 816 176 195 148 227
Expense Example, with Redemption, 5 Years 994 307 340 258 395
Expense Example, with Redemption, 10 Years $ 1,508 $ 689 $ 762 $ 579 $ 883
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected

in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 28% of the average value of its portfolio.

Portfolio Turnover, Rate 28.00%
Nuveen Mid Cap Value Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Mid Cap Value Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Small Cap Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Quant Small Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Quant Small Cap Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.39% 0.39% 0.39% 0.39% 0.39% 0.39%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.10% [1] 0.07% [1] 0.01% 0.01% 0.26% 0.01%
Expenses (as a percentage of Assets) 0.74% 0.46% 0.55% 0.40% 0.65% 0.40%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.40%) [3]
Net Expenses (as a percentage of Assets) 0.74% 0.46% 0.55% 0.40% 0.65% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.88% of average daily net assets for Class A shares; (ii) 0.68% of average daily net assets for Class I shares; (iii) 0.68% of average daily net assets for Premier Class shares; (iv) 0.53% of average daily net assets for Class R6 shares; (v) 0.78% of average daily net assets for Retirement Class shares; and (vi) 0.53% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Quant Small Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 646 $ 47 $ 56 $ 41 $ 66 $ 0
Expense Example, with Redemption, 3 Years 798 148 176 128 208 0
Expense Example, with Redemption, 5 Years 963 258 307 224 362 0
Expense Example, with Redemption, 10 Years $ 1,441 $ 579 $ 689 $ 505 $ 810 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 76% of the average value of its portfolio.

Portfolio Turnover, Rate 76.00%
Nuveen Quant Small Cap Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Small Cap Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Small/Mid Cap Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Quant Small/Mid Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Quant Small/Mid Cap Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Management Fees (as a percentage of Assets) 0.42% 0.42% 0.42% 0.42% 0.42% 0.42%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.11% [1] 0.11% [1] 0.05% 0.04% 0.27% 0.02%
Expenses (as a percentage of Assets) 0.78% 0.53% 0.62% 0.46% 0.69% 0.44%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00% (0.44%) [3]
Net Expenses (as a percentage of Assets) 0.78% 0.53% 0.62% 0.46% 0.69% 0.00%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.88% of average daily net assets for Class A shares; (ii) 0.68% of average daily net assets for Class I shares; (iii) 0.68% of average daily net assets for Premier Class shares; (iv) 0.53% of average daily net assets for Class R6 shares; (v) 0.78% of average daily net assets for Retirement Class shares; and (vi) 0.53% of average daily net assets for Class W shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

[3]

Nuveen Fund Advisors has contractually agreed to waive and/or reimburse Class W’s Management fees and Other expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses, Trustee expenses and extraordinary expenses) in their entirety. Nuveen Fund Advisors expects these waiver and/or reimbursement arrangements to remain in effect indefinitely, unless changed or terminated with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the durations noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Quant Small/Mid Cap Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Class W
Expense Example, with Redemption, 1 Year $ 650 $ 54 $ 63 $ 47 $ 70 $ 0
Expense Example, with Redemption, 3 Years 810 170 199 148 221 0
Expense Example, with Redemption, 5 Years 983 296 346 258 384 0
Expense Example, with Redemption, 10 Years $ 1,485 $ 665 $ 774 $ 579 $ 859 $ 0
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 89% of the average value of its portfolio.

Portfolio Turnover, Rate 89.00%
Nuveen Quant Small/Mid Cap Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Quant Small/Mid Cap Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Responsible Equity Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and expenses
Expense Narrative [Text Block]

The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, when buying or selling shares of the Fund, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Nuveen mutual funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “How You Can Buy and Sell Shares” on page 119 of the Fund’s Prospectus and “Purchase and Redemption of Fund Shares” on page 106 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in the appendix to the Fund’s Prospectus entitled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries.”

Shareholder Fees Caption [Optional Text] SHAREHOLDER FEES (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Nuveen Large Cap Responsible Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00% 0.00% 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00% 0.00% 0.00% 0.00% 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00% 0.00% 0.00% 0.00% 0.00%
Shareholder Fee, Other $ 15.00 $ 0 $ 0 $ 0 $ 0
Operating Expenses Caption [Optional Text] ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Nuveen Large Cap Responsible Equity Fund
Class A
Class I
Premier Class
Class R6
Retirement Class
Management Fees (as a percentage of Assets) 0.15% 0.15% 0.15% 0.15% 0.15%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.15% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.09% [1] 0.09% [1] 0.02% 0.02% 0.27%
Expenses (as a percentage of Assets) 0.49% 0.24% 0.32% 0.17% 0.42%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% 0.00% 0.00%
Net Expenses (as a percentage of Assets) 0.49% 0.24% 0.32% 0.17% 0.42%
Fee Waiver or Reimbursement over Assets, Date of Termination February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027 February 28, 2027
[1]

Restated to reflect estimate for the current fiscal year.

[2]

Under the Fund’s expense reimbursement arrangements, the Fund’s investment adviser, Nuveen Fund Advisors, LLC (“Nuveen Fund Advisors”), has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired fund fees and expenses and extraordinary expenses) that exceed: (i) 0.57% of average daily net assets for Class A shares; (ii) 0.37% of average daily net assets for Class I shares; (iii) 0.37% of average daily net assets for Premier Class shares; (iv) 0.22% of average daily net assets for Class R6 shares; and (v) 0.47% of average daily net assets for Retirement Class shares of the Fund. These expense reimbursement arrangements will continue through at least February 28, 2027, unless changed with approval of the Board of Trustees.

Expense Example [Heading] Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before fee waivers and/or expense reimbursements, remain the same. The example assumes that the Fund’s fee waiver and/or expense reimbursement arrangements will each remain in place for the duration noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, With Redemption [Table]
Expense Example - Nuveen Large Cap Responsible Equity Fund - USD ($)
Class A
Class I
Premier Class
Class R6
Retirement Class
Expense Example, with Redemption, 1 Year $ 622 $ 25 $ 33 $ 17 $ 43
Expense Example, with Redemption, 3 Years 723 77 103 55 135
Expense Example, with Redemption, 5 Years 833 135 180 96 235
Expense Example, with Redemption, 10 Years $ 1,156 $ 306 $ 406 $ 217 $ 530
Portfolio Turnover [Heading] Portfolio turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, as applicable, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2025, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

Portfolio Turnover, Rate 25.00%
Nuveen Large Cap Responsible Equity Fund | Class A  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.
Nuveen Large Cap Responsible Equity Fund | Class I  
Prospectus [Line Items]  
Expenses Restated to Reflect Current [Text] Restated to reflect estimate for the current fiscal year.