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NUVEEN INVESTMENT FUNDS INC

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NUVEEN CORE BOND FUND

NUVEEN CORE PLUS BOND FUND

NUVEEN INFLATION PROTECTED SECURITIES FUND

NUVEEN INTERMEDIATE GOVERNMENT BOND FUND

NUVEEN SHORT TERM BOND FUND

NUVEEN STRATEGIC INCOME FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED OCTOBER 30, 2015

1.	The section “Fund Summaries—Nuveen Core Bond Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R6³		Class I
Management Fees		0.42%		0.42%		0.42%		0.42%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.00%		0.00%
Other Expenses		0.18%		0.19%		0.14%		0.17%
Total Annual Fund Operating Expenses		0.85%		1.61%		0.56%		0.59%
Fee Waivers and/or Expense Reimbursements⁴		(0.07)%		(0.08)%		(0.08)%		(0.06)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.78%		1.53%		0.48%		0.53%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Class R6 represents annualized actual expenses for the period January 20, 2015 (commencement of operations) through June 30, 2015.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.53% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

2.	The section “Fund Summaries—Nuveen Core Bond Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R6		I		A		C		R6		I
1 Year	$	377	$	156	$	49	$	54	$	377	$	156	$	49	$	54
3 Years	$	554	$	498	$	169	$	181	$	554	$	498	$	169	$	181
5 Years	$	748	$	866	$	302	$	321	$	748	$	866	$	302	$	321
10 Years	$	1,309	$	1,902	$	691	$	730	$	1,309	$	1,902	$	691	$	730

3.	The section “Fund Summaries—Nuveen Core Plus Bond Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6³		Class I
Management Fees		0.44%		0.44%		0.44%		0.44%		0.44%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses		0.16%		0.16%		0.16%		0.10%		0.16%
Total Annual Fund Operating Expenses		0.85%		1.60%		1.10%		0.54%		0.60%
Fee Waivers and/or Expense Reimbursements⁴		(0.08)%		(0.08)%		(0.08)%		(0.08)%		(0.08)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.77%		1.52%		1.02%		0.46%		0.52%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Class R6 represents annualized actual expenses for the period January 20, 2015 (commencement of operations) through June 30, 2015.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.52% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

4.	The section “Fund Summaries—Nuveen Core Bond Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	500	$	155	$	104	$	47	$	53	$	500	$	155	$	104	$	47	$	53
3 Years	$	674	$	494	$	339	$	162	$	181	$	674	$	494	$	339	$	162	$	181
5 Years	$	866	$	861	$	596	$	291	$	324	$	866	$	861	$	596	$	291	$	324
10 Years	$	1,420	$	1,891	$	1,331	$	667	$	740	$	1,420	$	1,891	$	1,331	$	667	$	740

5.	The section “Fund Summaries—Nuveen Inflation Protected Securities Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6³		Class I
Management Fees		0.42%		0.42%		0.42%		0.42%		0.42%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses		0.25%		0.24%		0.23%		0.10%		0.24%
Total Annual Fund Operating Expenses		0.92%		1.66%		1.15%		0.52%		0.66%
Fee Waivers and/or Expense Reimbursements^4,5		(0.13)%		(0.12)%		(0.11)%		(0.15)%		(0.12)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.79%		1.54%		1.04%		0.37%		0.54%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Class R6 represents annualized actual expenses for the period January 20, 2015 (commencement of operations) through June 30, 2015.

4

Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

5

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.56% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

6.	The section “Fund Summaries—Nuveen Inflation Protected Securities Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	502	$	157	$	106	$	38	$	55	$	502	$	157	$	106	$	38	$	55
3 Years	$	689	$	508	$	351	$	146	$	195	$	689	$	508	$	351	$	146	$	195
5 Years	$	896	$	887	$	619	$	271	$	352	$	896	$	887	$	619	$	271	$	352
10 Years	$	1,493	$	1,952	$	1,384	$	633	$	807	$	1,493	$	1,952	$	1,384	$	633	$	807

7.	The section “Fund Summaries—Nuveen Intermediate Government Bond Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees³		0.45%		0.45%		0.45%		0.45%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses		0.30%		0.30%		0.30%		0.30%
Total Annual Fund Operating Expenses		1.00%		1.75%		1.25%		0.75%
Fee Waivers and/or Expense Reimbursements^3,4		(0.21)%		(0.21)%		(0.21)%		(0.21)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.79%		1.54%		1.04%		0.54%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.54% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

8.	The section “Fund Summaries—Nuveen Intermediate Government Bond Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	378	$	157	$	106	$	55	$	378	$	157	$	106	$	55
3 Years	$	582	$	524	$	369	$	211	$	582	$	524	$	369	$	211
5 Years	$	809	$	923	$	659	$	389	$	809	$	923	$	659	$	389
10 Years	$	1,463	$	2,039	$	1,486	$	904	$	1,463	$	2,039	$	1,486	$	904

9.	The section “Fund Summaries—Nuveen Short Term Bond Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6³		Class I
Management Fees		0.38%		0.38%		0.38%		0.38%		0.38%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses		0.10%		0.10%		0.10%		0.08%		0.10%
Total Annual Fund Operating Expenses		0.73%		1.48%		0.98%		0.46%		0.48%
Fee Waivers and/or Expense Reimbursements⁴		(0.02)%		(0.02)%		(0.02)%		(0.03)%		(0.02)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.71%		1.46%		0.96%		0.43%		0.46%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Class R6 represents annualized actual expenses for the period January 20, 2015 (commencement of operations) through June 30, 2015.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.47% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

10.	The section “Fund Summaries—Nuveen Short Term Bond Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	296	$	149	$	98	$	44	$	47	$	296	$	149	$	98	$	44	$	47
3 Years	$	450	$	465	$	309	$	144	$	151	$	450	$	465	$	309	$	144	$	151
5 Years	$	619	$	805	$	539	$	254	$	266	$	619	$	805	$	539	$	254	$	266
10 Years	$	1,109	$	1,766	$	1,199	$	575	$	601	$	1,109	$	1,766	$	1,199	$	575	$	601

11.	The section “Fund Summaries—Nuveen Strategic Income Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6³		Class I
Management Fees		0.51%		0.51%		0.51%		0.51%		0.51%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses		0.16%		0.16%		0.16%		0.10%		0.16%
Total Annual Fund Operating Expenses		0.92%		1.67%		1.17%		0.61%		0.67%
Fee Waivers and/or Expense Reimbursements⁴		(0.10)%		(0.10)%		(0.10)%		(0.11)%		(0.10)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.82%		1.57%		1.07%		0.50%		0.57%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Class R6 represents annualized actual expenses for the period January 20, 2015 (commencement of operations) through June 30, 2015.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.59% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

12.	The section “Fund Summaries—Nuveen Strategic Income Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	505	$	160	$	109	$	51	$	58	$	505	$	160	$	109	$	51	$	58
3 Years	$	693	$	513	$	358	$	180	$	201	$	693	$	513	$	358	$	180	$	201
5 Years	$	900	$	895	$	631	$	326	$	360	$	900	$	895	$	631	$	326	$	360
10 Years	$	1,496	$	1,965	$	1,408	$	748	$	822	$	1,496	$	1,965	$	1,408	$	748	$	822

NUVEEN DIVIDEND VALUE FUND

NUVEEN EQUITY INDEX FUND

NUVEEN LARGE CAP GROWTH OPPORTUNITIES FUND

NUVEEN LARGE CAP SELECT FUND

NUVEEN MID CAP GROWTH OPPORTUNITIES FUND

NUVEEN MID CAP INDEX FUND

NUVEEN MID CAP VALUE FUND

NUVEEN SMALL CAP INDEX FUND

NUVEEN SMALL CAP SELECT FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED FEBRUARY 29, 2016

1.	The section “Fund Summaries—Nuveen Dividend Value Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A			Class C			Class R3			Class R6			Class I
Management Fees³		0.65	%		0.65	%		0.65	%		0.65	%		0.65%
Distribution and/or Service (12b-1) Fees		0.25	%		1.00	%		0.50	%		0.00	%		0.00%
Other Expenses³		0.14	%		0.14	%		0.14	%		0.05	%		0.14%
Total Annual Fund Operating Expenses		1.04	%		1.79	%		1.29	%		0.70	%		0.79%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Other Expenses have been restated to reflect current contractual fees.

2.	The section “Fund Summaries—Nuveen Dividend Value Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	675	$	182	$	131	$	72	$	81	$	675	$	182	$	131	$	72	$	81
3 Years	$	887	$	563	$	409	$	224	$	252	$	887	$	563	$	409	$	224	$	252
5 Years	$	1,116	$	970	$	708	$	390	$	439	$	1,116	$	970	$	708	$	390	$	439
10 Years	$	1,773	$	2,105	$	1,556	$	871	$	978	$	1,773	$	2,105	$	1,556	$	871	$	978

3.	The section “Fund Summaries—Nuveen Equity Index Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees		0.27%		0.27%		0.27%		0.27%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.19%		0.19%		0.19%		0.19%
Total Annual Fund Operating Expenses		0.71%		1.46%		0.96%		0.46%
Fee Waivers and/or Expense Reimbursements^3,4		(0.12)%		(0.12)%		(0.12)%		(0.12)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.59%		1.34%		0.84%		0.34%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.34% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

4.	The section “Fund Summaries—Nuveen Equity Index Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	60	$	136	$	86	$	35	$	60	$	136	$	86	$	35
3 Years	$	207	$	442	$	286	$	127	$	207	$	442	$	286	$	127
5 Years	$	375	$	778	$	511	$	237	$	375	$	778	$	511	$	237
10 Years	$	863	$	1,729	$	1,159	$	559	$	863	$	1,729	$	1,159	$	559

5.	The section “Fund Summaries—Nuveen Large Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6		Class I
Management Fees³		0.68%		0.68%		0.68%		0.68%		0.68%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses³		0.16%		0.16%		0.16%		0.07%		0.16%
Total Annual Fund Operating Expenses		1.09%		1.84%		1.34%		0.75%		0.84%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Other Expenses have been restated to reflect current contractual fees.

6.	The section “Fund Summaries—Nuveen Large Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	680	$	187	$	136	$	77	$	86	$	680	$	187	$	136	$	77	$	86
3 Years	$	902	$	579	$	425	$	240	$	268	$	902	$	579	$	425	$	240	$	268
5 Years	$	1,141	$	995	$	734	$	417	$	466	$	1,141	$	995	$	734	$	417	$	466
10 Years	$	1,827	$	2,159	$	1,613	$	930	$	1,037	$	1,827	$	2,159	$	1,613	$	930	$	1,037

7.	The section “Fund Summaries—Nuveen Large Cap Select Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class I
Management Fees³		0.70%		0.70%		0.70%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.00%
Other Expenses³		0.23%		0.23%		0.23%
Total Annual Fund Operating Expenses		1.18%		1.93%		0.93%
Fee Waivers and/or Expense Reimbursements^3,4		(0.04)%		(0.04)%		(0.04)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		1.14%		1.89%		0.89%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees, Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.89% of the average daily net assets of any class of Fund shares. The expense limitation may be terminated or modified prior to that date only with the approval of the Board of Trustees of the Fund.

8.	The section “Fund Summaries—Nuveen Large Cap Select Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption						No Redemption
	A		C		I		A		C		I
1 Year	$	685	$	192	$	91	$	685	$	192	$	91
3 Years	$	922	$	600	$	290	$	922	$	600	$	290
5 Years	$	1,181	$	1,036	$	508	$	1,181	$	1,036	$	508
10 Years	$	1,919	$	2,248	$	1,137	$	1,919	$	2,248	$	1,137

9.	The section “Fund Summaries—Nuveen Mid Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6		Class I
Management Fees³		0.76%		0.76%		0.76%		0.76%		0.76%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses³		0.18%		0.18%		0.18%		0.05%		0.18%
Total Annual Fund Operating Expenses		1.19%		1.94%		1.44%		0.81%		0.94%
Fee Waivers and/or Expense Reimbursements⁴		(0.03)%		(0.03)%		(0.03)%		(0.03)%		(0.03)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		1.16%		1.91%		1.41%		0.78%		0.91%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Other Expenses have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.92% of the average daily net assets of any class of Fund shares. The expense limitation may be terminated or modified prior to that date only with the approval of the Board of Trustees of the Fund.

10.	The section “Fund Summaries—Nuveen Mid Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	686	$	194	$	144	$	80	$	93	$	686	$	194	$	144	$	80	$	93
3 Years	$	926	$	604	$	451	$	254	$	294	$	926	$	604	$	451	$	254	$	294
5 Years	$	1,187	$	1,042	$	782	$	445	$	515	$	1,187	$	1,042	$	782	$	445	$	515
10 Years	$	1,931	$	2,260	$	1,720	$	997	$	1,150	$	1,931	$	2,260	$	1,720	$	997	$	1,150

11.	The section “Fund Summaries—Nuveen Mid Cap Index Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees		0.30%		0.30%		0.30%		0.30%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.24%		0.24%		0.24%		0.24%
Total Annual Fund Operating Expenses		0.79%		1.54%		1.04%		0.54%
Fee Waivers and/or Expense Reimbursements^3,4		(0.15)%		(0.15)%		(0.15)%		(0.15)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.64%		1.39%		0.89%		0.39%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.41% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

12.	The section “Fund Summaries—Nuveen Mid Cap Index Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	65	$	142	$	91	$	40	$	65	$	142	$	91	$	40
3 Years	$	227	$	462	$	306	$	147	$	227	$	462	$	306	$	147
5 Years	$	414	$	815	$	549	$	276	$	414	$	815	$	549	$	276
10 Years	$	954	$	1,813	$	1,248	$	653	$	954	$	1,813	$	1,248	$	653

13.	The section “Fund Summaries—Nuveen Mid Cap Value Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees³		0.80%		0.80%		0.80%		0.80%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.25%		0.25%		0.25%		0.25%
Total Annual Fund Operating Expenses		1.30%		2.05%		1.55%		1.05%
Fee Waivers and/or Expense Reimbursements^3,4		(0.13)%		(0.13)%		(0.13)%		(0.13)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		1.17%		1.92%		1.42%		0.92%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees, Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.92% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

14.	The section “Fund Summaries—Nuveen Mid Cap Value Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	687	$	195	$	145	$	94	$	687	$	195	$	145	$	94
3 Years	$	943	$	621	$	468	$	312	$	943	$	621	$	468	$	312
5 Years	$	1,227	$	1,083	$	824	$	558	$	1,227	$	1,083	$	824	$	558
10 Years	$	2,034	$	2,362	$	1,827	$	1,263	$	2,034	$	2,362	$	1,827	$	1,263

15.	The section “Fund Summaries—Nuveen Small Cap Index Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees		0.33%		0.33%		0.33%		0.33%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.42%		0.42%		0.42%		0.41%
Total Annual Fund Operating Expenses		1.00%		1.75%		1.25%		0.74%
Fee Waivers and/or Expense Reimbursements^3,4		(0.23)%		(0.23)%		(0.23)%		(0.22)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.77%		1.52%		1.02%		0.52%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.54% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

16.	The section “Fund Summaries—Nuveen Small Cap Index Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	79	$	155	$	104	$	53	$	79	$	155	$	104	$	53
3 Years	$	280	$	513	$	358	$	199	$	280	$	513	$	358	$	199
5 Years	$	514	$	912	$	649	$	375	$	514	$	912	$	649	$	375
10 Years	$	1,189	$	2,030	$	1,477	$	883	$	1,189	$	2,030	$	1,477	$	883

17.	The section “Fund Summaries—Nuveen Small Cap Select Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees³		0.84%		0.84%		0.84%		0.84%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.27%		0.27%		0.27%		0.27%
Acquired Fund Fees and Expenses		0.10%		0.10%		0.10%		0.10%
Total Annual Fund Operating Expenses		1.46%		2.21%		1.71%		1.21%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Other Expenses have been restated to reflect current contractual fees.

18.	The section “Fund Summaries—Nuveen Small Cap Select Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	715	$	224	$	174	$	123	$	715	$	224	$	174	$	123
3 Years	$	1,010	$	691	$	539	$	384	$	1,010	$	691	$	539	$	384
5 Years	$	1,327	$	1,185	$	928	$	665	$	1,327	$	1,185	$	928	$	665
10 Years	$	2,221	$	2,544	$	2,019	$	1,466	$	2,221	$	2,544	$	2,019	$	1,466

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.85%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.78%

3 Years

rr_ExpenseExampleYear03

554

10 Years

rr_ExpenseExampleYear10

1,309

3 Years

rr_ExpenseExampleNoRedemptionYear03

554

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,309

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.61%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.53%

3 Years

rr_ExpenseExampleYear03

498

10 Years

rr_ExpenseExampleYear10

1,902

3 Years

rr_ExpenseExampleNoRedemptionYear03

498

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,902

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

^[2]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.56%

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.48%

^[2]

3 Years

rr_ExpenseExampleYear03

169

10 Years

rr_ExpenseExampleYear10

691

3 Years

rr_ExpenseExampleNoRedemptionYear03

169

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 691

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.59%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.53%

3 Years

rr_ExpenseExampleYear03

181

10 Years

rr_ExpenseExampleYear10

730

3 Years

rr_ExpenseExampleNoRedemptionYear03

181

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 730

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.85%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.77%

3 Years

rr_ExpenseExampleYear03

674

10 Years

rr_ExpenseExampleYear10

1,420

3 Years

rr_ExpenseExampleNoRedemptionYear03

674

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,420

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.60%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.52%

3 Years

rr_ExpenseExampleYear03

494

10 Years

rr_ExpenseExampleYear10

1,891

3 Years

rr_ExpenseExampleNoRedemptionYear03

494

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,891

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.10%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.02%

3 Years

rr_ExpenseExampleYear03

339

10 Years

rr_ExpenseExampleYear10

1,331

3 Years

rr_ExpenseExampleNoRedemptionYear03

339

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,331

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

^[2]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.54%

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.46%

^[2]

3 Years

rr_ExpenseExampleYear03

162

10 Years

rr_ExpenseExampleYear10

667

3 Years

rr_ExpenseExampleNoRedemptionYear03

162

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 667

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.60%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.52%

3 Years

rr_ExpenseExampleYear03

181

10 Years

rr_ExpenseExampleYear10

740

3 Years

rr_ExpenseExampleNoRedemptionYear03

181

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 740

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Redemption

Management Fees

rr_ManagementFeesOverAssets

0.42%

Other Expenses

rr_OtherExpensesOverAssets

0.25%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[4],[5]

1 Year

rr_ExpenseExampleYear01

$ 502

5 Years

rr_ExpenseExampleYear05

896

1 Year

rr_ExpenseExampleNoRedemptionYear01

502

5 Years

rr_ExpenseExampleNoRedemptionYear05

896

Management Fees

rr_ManagementFeesOverAssets

0.42%

Other Expenses

rr_OtherExpensesOverAssets

0.24%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[4],[5]

1 Year

rr_ExpenseExampleYear01

$ 157

5 Years

rr_ExpenseExampleYear05

887

1 Year

rr_ExpenseExampleNoRedemptionYear01

157

5 Years

rr_ExpenseExampleNoRedemptionYear05

887

Management Fees

rr_ManagementFeesOverAssets

0.42%

Other Expenses

rr_OtherExpensesOverAssets

0.23%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.11%)

^[4],[5]

1 Year

rr_ExpenseExampleYear01

$ 106

5 Years

rr_ExpenseExampleYear05

619

1 Year

rr_ExpenseExampleNoRedemptionYear01

106

5 Years

rr_ExpenseExampleNoRedemptionYear05

619

Management Fees

rr_ManagementFeesOverAssets

0.42%

^[2]

Other Expenses

rr_OtherExpensesOverAssets

0.10%

^[2]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.15%)

^[2],[4],[5]

1 Year

rr_ExpenseExampleYear01

$ 38

5 Years

rr_ExpenseExampleYear05

271

1 Year

rr_ExpenseExampleNoRedemptionYear01

38

5 Years

rr_ExpenseExampleNoRedemptionYear05

271

Management Fees

rr_ManagementFeesOverAssets

0.42%

Other Expenses

rr_OtherExpensesOverAssets

0.24%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[4],[5]

1 Year

rr_ExpenseExampleYear01

$ 55

5 Years

rr_ExpenseExampleYear05

352

1 Year

rr_ExpenseExampleNoRedemptionYear01

55

5 Years

rr_ExpenseExampleNoRedemptionYear05

352

Supplement [Text Block]

nifi1_SupplementTextBlock

NUVEEN INTERMEDIATE GOVERNMENT BOND FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED OCTOBER 30, 2015

7.	The section “Fund Summaries—Nuveen Intermediate Government Bond Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees³		0.45%		0.45%		0.45%		0.45%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses		0.30%		0.30%		0.30%		0.30%
Total Annual Fund Operating Expenses		1.00%		1.75%		1.25%		0.75%
Fee Waivers and/or Expense Reimbursements^3,4		(0.21)%		(0.21)%		(0.21)%		(0.21)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.79%		1.54%		1.04%		0.54%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2017 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.54% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

8.	The section “Fund Summaries—Nuveen Intermediate Government Bond Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	378	$	157	$	106	$	55	$	378	$	157	$	106	$	55
3 Years	$	582	$	524	$	369	$	211	$	582	$	524	$	369	$	211
5 Years	$	809	$	923	$	659	$	389	$	809	$	923	$	659	$	389
10 Years	$	1,463	$	2,039	$	1,486	$	904	$	1,463	$	2,039	$	1,486	$	904

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

October 31, 2017

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Management Fees and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.00%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.79%

3 Years

rr_ExpenseExampleYear03

582

10 Years

rr_ExpenseExampleYear10

1,463

3 Years

rr_ExpenseExampleNoRedemptionYear03

582

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,463

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.75%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.54%

3 Years

rr_ExpenseExampleYear03

524

10 Years

rr_ExpenseExampleYear10

2,039

3 Years

rr_ExpenseExampleNoRedemptionYear03

524

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,039

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.25%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.04%

3 Years

rr_ExpenseExampleYear03

369

10 Years

rr_ExpenseExampleYear10

1,486

3 Years

rr_ExpenseExampleNoRedemptionYear03

369

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,486

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.75%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.54%

3 Years

rr_ExpenseExampleYear03

211

10 Years

rr_ExpenseExampleYear10

904

3 Years

rr_ExpenseExampleNoRedemptionYear03

211

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 904

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.73%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.71%

3 Years

rr_ExpenseExampleYear03

450

10 Years

rr_ExpenseExampleYear10

1,109

3 Years

rr_ExpenseExampleNoRedemptionYear03

450

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,109

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.48%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.46%

3 Years

rr_ExpenseExampleYear03

465

10 Years

rr_ExpenseExampleYear10

1,766

3 Years

rr_ExpenseExampleNoRedemptionYear03

465

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,766

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.98%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.96%

3 Years

rr_ExpenseExampleYear03

309

10 Years

rr_ExpenseExampleYear10

1,199

3 Years

rr_ExpenseExampleNoRedemptionYear03

309

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,199

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

^[2]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.46%

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.43%

^[2]

3 Years

rr_ExpenseExampleYear03

144

10 Years

rr_ExpenseExampleYear10

575

3 Years

rr_ExpenseExampleNoRedemptionYear03

144

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 575

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.48%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.46%

3 Years

rr_ExpenseExampleYear03

151

10 Years

rr_ExpenseExampleYear10

601

3 Years

rr_ExpenseExampleNoRedemptionYear03

151

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 601

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2017. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.92%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.82%

3 Years

rr_ExpenseExampleYear03

693

10 Years

rr_ExpenseExampleYear10

1,496

3 Years

rr_ExpenseExampleNoRedemptionYear03

693

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,496

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.67%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.57%

3 Years

rr_ExpenseExampleYear03

513

10 Years

rr_ExpenseExampleYear10

1,965

3 Years

rr_ExpenseExampleNoRedemptionYear03

513

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,965

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.17%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.07%

3 Years

rr_ExpenseExampleYear03

358

10 Years

rr_ExpenseExampleYear10

1,408

3 Years

rr_ExpenseExampleNoRedemptionYear03

358

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,408

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

^[2]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.61%

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.50%

^[2]

3 Years

rr_ExpenseExampleYear03

180

10 Years

rr_ExpenseExampleYear10

748

3 Years

rr_ExpenseExampleNoRedemptionYear03

180

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 748

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.67%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.57%

3 Years

rr_ExpenseExampleYear03

201

10 Years

rr_ExpenseExampleYear10

822

3 Years

rr_ExpenseExampleNoRedemptionYear03

201

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 822

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Management Fees and Other Expenses have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.04%

3 Years

rr_ExpenseExampleYear03

887

10 Years

rr_ExpenseExampleYear10

1,773

3 Years

rr_ExpenseExampleNoRedemptionYear03

887

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,773

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.79%

3 Years

rr_ExpenseExampleYear03

563

10 Years

rr_ExpenseExampleYear10

2,105

3 Years

rr_ExpenseExampleNoRedemptionYear03

563

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,105

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.29%

3 Years

rr_ExpenseExampleYear03

409

10 Years

rr_ExpenseExampleYear10

1,556

3 Years

rr_ExpenseExampleNoRedemptionYear03

409

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,556

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.70%

3 Years

rr_ExpenseExampleYear03

224

10 Years

rr_ExpenseExampleYear10

871

3 Years

rr_ExpenseExampleNoRedemptionYear03

224

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 871

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

3 Years

rr_ExpenseExampleYear03

252

10 Years

rr_ExpenseExampleYear10

978

3 Years

rr_ExpenseExampleNoRedemptionYear03

252

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 978

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Redemption

Management Fees

rr_ManagementFeesOverAssets

0.27%

Other Expenses

rr_OtherExpensesOverAssets

0.19%

^[11]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[11],[12]

1 Year

rr_ExpenseExampleYear01

$ 60

5 Years

rr_ExpenseExampleYear05

375

1 Year

rr_ExpenseExampleNoRedemptionYear01

60

5 Years

rr_ExpenseExampleNoRedemptionYear05

375

Management Fees

rr_ManagementFeesOverAssets

0.27%

Other Expenses

rr_OtherExpensesOverAssets

0.19%

^[11]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[11],[12]

1 Year

rr_ExpenseExampleYear01

$ 136

5 Years

rr_ExpenseExampleYear05

778

1 Year

rr_ExpenseExampleNoRedemptionYear01

136

5 Years

rr_ExpenseExampleNoRedemptionYear05

778

Management Fees

rr_ManagementFeesOverAssets

0.27%

Other Expenses

rr_OtherExpensesOverAssets

0.19%

^[11]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[11],[12]

1 Year

rr_ExpenseExampleYear01

$ 86

5 Years

rr_ExpenseExampleYear05

511

1 Year

rr_ExpenseExampleNoRedemptionYear01

86

5 Years

rr_ExpenseExampleNoRedemptionYear05

511

Management Fees

rr_ManagementFeesOverAssets

0.27%

Other Expenses

rr_OtherExpensesOverAssets

0.19%

^[11]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[11],[12]

1 Year

rr_ExpenseExampleYear01

$ 35

5 Years

rr_ExpenseExampleYear05

237

1 Year

rr_ExpenseExampleNoRedemptionYear01

35

5 Years

rr_ExpenseExampleNoRedemptionYear05

237

Supplement [Text Block]

nifi1_SupplementTextBlock

NUVEEN LARGE CAP GROWTH OPPORTUNITIES FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED FEBRUARY 29, 2016

5.	The section “Fund Summaries—Nuveen Large Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class R6		Class I
Management Fees³		0.68%		0.68%		0.68%		0.68%		0.68%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%		0.00%
Other Expenses³		0.16%		0.16%		0.16%		0.07%		0.16%
Total Annual Fund Operating Expenses		1.09%		1.84%		1.34%		0.75%		0.84%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees and Other Expenses have been restated to reflect current contractual fees.

6.	The section “Fund Summaries—Nuveen Large Cap Growth Opportunities Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption										No Redemption
	A		C		R3		R6		I		A		C		R3		R6		I
1 Year	$	680	$	187	$	136	$	77	$	86	$	680	$	187	$	136	$	77	$	86
3 Years	$	902	$	579	$	425	$	240	$	268	$	902	$	579	$	425	$	240	$	268
5 Years	$	1,141	$	995	$	734	$	417	$	466	$	1,141	$	995	$	734	$	417	$	466
10 Years	$	1,827	$	2,159	$	1,613	$	930	$	1,037	$	1,827	$	2,159	$	1,613	$	930	$	1,037

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Redemption

Management Fees

rr_ManagementFeesOverAssets

0.68%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.16%

^[10]

1 Year

rr_ExpenseExampleYear01

$ 680

5 Years

rr_ExpenseExampleYear05

1,141

1 Year

rr_ExpenseExampleNoRedemptionYear01

680

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,141

Management Fees

rr_ManagementFeesOverAssets

0.68%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.16%

^[10]

1 Year

rr_ExpenseExampleYear01

$ 187

5 Years

rr_ExpenseExampleYear05

995

1 Year

rr_ExpenseExampleNoRedemptionYear01

187

5 Years

rr_ExpenseExampleNoRedemptionYear05

995

Management Fees

rr_ManagementFeesOverAssets

0.68%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.16%

^[10]

1 Year

rr_ExpenseExampleYear01

$ 136

5 Years

rr_ExpenseExampleYear05

734

1 Year

rr_ExpenseExampleNoRedemptionYear01

136

5 Years

rr_ExpenseExampleNoRedemptionYear05

734

Management Fees

rr_ManagementFeesOverAssets

0.68%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.07%

^[10]

1 Year

rr_ExpenseExampleYear01

$ 77

5 Years

rr_ExpenseExampleYear05

417

1 Year

rr_ExpenseExampleNoRedemptionYear01

77

5 Years

rr_ExpenseExampleNoRedemptionYear05

417

Management Fees

rr_ManagementFeesOverAssets

0.68%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.16%

^[10]

1 Year

rr_ExpenseExampleYear01

$ 86

5 Years

rr_ExpenseExampleYear05

466

1 Year

rr_ExpenseExampleNoRedemptionYear01

86

5 Years

rr_ExpenseExampleNoRedemptionYear05

466

Supplement [Text Block]

nifi1_SupplementTextBlock

NUVEEN LARGE CAP SELECT FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED FEBRUARY 29, 2016

7.	The section “Fund Summaries—Nuveen Large Cap Select Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class I
Management Fees³		0.70%		0.70%		0.70%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.00%
Other Expenses³		0.23%		0.23%		0.23%
Total Annual Fund Operating Expenses		1.18%		1.93%		0.93%
Fee Waivers and/or Expense Reimbursements^3,4		(0.04)%		(0.04)%		(0.04)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		1.14%		1.89%		0.89%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Management Fees, Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.89% of the average daily net assets of any class of Fund shares. The expense limitation may be terminated or modified prior to that date only with the approval of the Board of Trustees of the Fund.

8.	The section “Fund Summaries—Nuveen Large Cap Select Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption						No Redemption
	A		C		I		A		C		I
1 Year	$	685	$	192	$	91	$	685	$	192	$	91
3 Years	$	922	$	600	$	290	$	922	$	600	$	290
5 Years	$	1,181	$	1,036	$	508	$	1,181	$	1,036	$	508
10 Years	$	1,919	$	2,248	$	1,137	$	1,919	$	2,248	$	1,137

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Management Fees, Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.18%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.14%

3 Years

rr_ExpenseExampleYear03

922

10 Years

rr_ExpenseExampleYear10

1,919

3 Years

rr_ExpenseExampleNoRedemptionYear03

922

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,919

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.93%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.89%

3 Years

rr_ExpenseExampleYear03

600

10 Years

rr_ExpenseExampleYear10

2,248

3 Years

rr_ExpenseExampleNoRedemptionYear03

600

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,248

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.93%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.89%

3 Years

rr_ExpenseExampleYear03

290

10 Years

rr_ExpenseExampleYear10

1,137

3 Years

rr_ExpenseExampleNoRedemptionYear03

290

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,137

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Redemption

Management Fees

rr_ManagementFeesOverAssets

0.76%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.18%

^[10]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[15]

1 Year

rr_ExpenseExampleYear01

$ 686

5 Years

rr_ExpenseExampleYear05

1,187

1 Year

rr_ExpenseExampleNoRedemptionYear01

686

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,187

Management Fees

rr_ManagementFeesOverAssets

0.76%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.18%

^[10]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[15]

1 Year

rr_ExpenseExampleYear01

$ 194

5 Years

rr_ExpenseExampleYear05

1,042

1 Year

rr_ExpenseExampleNoRedemptionYear01

194

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,042

Management Fees

rr_ManagementFeesOverAssets

0.76%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.18%

^[10]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[15]

1 Year

rr_ExpenseExampleYear01

$ 144

5 Years

rr_ExpenseExampleYear05

782

1 Year

rr_ExpenseExampleNoRedemptionYear01

144

5 Years

rr_ExpenseExampleNoRedemptionYear05

782

Management Fees

rr_ManagementFeesOverAssets

0.76%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.05%

^[10]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[15]

1 Year

rr_ExpenseExampleYear01

$ 80

5 Years

rr_ExpenseExampleYear05

445

1 Year

rr_ExpenseExampleNoRedemptionYear01

80

5 Years

rr_ExpenseExampleNoRedemptionYear05

445

Management Fees

rr_ManagementFeesOverAssets

0.76%

^[10]

Other Expenses

rr_OtherExpensesOverAssets

0.18%

^[10]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[15]

1 Year

rr_ExpenseExampleYear01

$ 93

5 Years

rr_ExpenseExampleYear05

515

1 Year

rr_ExpenseExampleNoRedemptionYear01

93

5 Years

rr_ExpenseExampleNoRedemptionYear05

515

Supplement [Text Block]

nifi1_SupplementTextBlock

NUVEEN MID CAP INDEX FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED FEBRUARY 29, 2016

11.	The section “Fund Summaries—Nuveen Mid Cap Index Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees		0.30%		0.30%		0.30%		0.30%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.24%		0.24%		0.24%		0.24%
Total Annual Fund Operating Expenses		0.79%		1.54%		1.04%		0.54%
Fee Waivers and/or Expense Reimbursements^3,4		(0.15)%		(0.15)%		(0.15)%		(0.15)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.64%		1.39%		0.89%		0.39%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.41% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

12.	The section “Fund Summaries—Nuveen Mid Cap Index Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	65	$	142	$	91	$	40	$	65	$	142	$	91	$	40
3 Years	$	227	$	462	$	306	$	147	$	227	$	462	$	306	$	147
5 Years	$	414	$	815	$	549	$	276	$	414	$	815	$	549	$	276
10 Years	$	954	$	1,813	$	1,248	$	653	$	954	$	1,813	$	1,248	$	653

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.64%

3 Years

rr_ExpenseExampleYear03

227

10 Years

rr_ExpenseExampleYear10

954

3 Years

rr_ExpenseExampleNoRedemptionYear03

227

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 954

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.54%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.39%

3 Years

rr_ExpenseExampleYear03

462

10 Years

rr_ExpenseExampleYear10

1,813

3 Years

rr_ExpenseExampleNoRedemptionYear03

462

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,813

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.04%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.89%

3 Years

rr_ExpenseExampleYear03

306

10 Years

rr_ExpenseExampleYear10

1,248

3 Years

rr_ExpenseExampleNoRedemptionYear03

306

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,248

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.54%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.39%

3 Years

rr_ExpenseExampleYear03

147

10 Years

rr_ExpenseExampleYear10

653

3 Years

rr_ExpenseExampleNoRedemptionYear03

147

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 653

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Redemption

Management Fees

rr_ManagementFeesOverAssets

0.80%

^[13]

Other Expenses

rr_OtherExpensesOverAssets

0.25%

^[13]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[13],[17]

1 Year

rr_ExpenseExampleYear01

$ 687

5 Years

rr_ExpenseExampleYear05

1,227

1 Year

rr_ExpenseExampleNoRedemptionYear01

687

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,227

Management Fees

rr_ManagementFeesOverAssets

0.80%

^[13]

Other Expenses

rr_OtherExpensesOverAssets

0.25%

^[13]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[13],[17]

1 Year

rr_ExpenseExampleYear01

$ 195

5 Years

rr_ExpenseExampleYear05

1,083

1 Year

rr_ExpenseExampleNoRedemptionYear01

195

5 Years

rr_ExpenseExampleNoRedemptionYear05

1,083

Management Fees

rr_ManagementFeesOverAssets

0.80%

^[13]

Other Expenses

rr_OtherExpensesOverAssets

0.25%

^[13]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[13],[17]

1 Year

rr_ExpenseExampleYear01

$ 145

5 Years

rr_ExpenseExampleYear05

824

1 Year

rr_ExpenseExampleNoRedemptionYear01

145

5 Years

rr_ExpenseExampleNoRedemptionYear05

824

Management Fees

rr_ManagementFeesOverAssets

0.80%

^[13]

Other Expenses

rr_OtherExpensesOverAssets

0.25%

^[13]

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[13],[17]

1 Year

rr_ExpenseExampleYear01

$ 94

5 Years

rr_ExpenseExampleYear05

558

1 Year

rr_ExpenseExampleNoRedemptionYear01

94

5 Years

rr_ExpenseExampleNoRedemptionYear05

558

Supplement [Text Block]

nifi1_SupplementTextBlock

NUVEEN SMALL CAP INDEX FUND

SUPPLEMENT DATED JUNE 30, 2016

TO THE PROSPECTUS DATED FEBRUARY 29, 2016

15.	The section “Fund Summaries—Nuveen Small Cap Index Fund—Fees and Expenses of the Fund—Annual Fund Operating Expenses” is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses

(expenses that you pay each year as a percentage of the value of your investment)


	Class A		Class C		Class R3		Class I
Management Fees		0.33%		0.33%		0.33%		0.33%
Distribution and/or Service (12b-1) Fees		0.25%		1.00%		0.50%		0.00%
Other Expenses³		0.42%		0.42%		0.42%		0.41%
Total Annual Fund Operating Expenses		1.00%		1.75%		1.25%		0.74%
Fee Waivers and/or Expense Reimbursements^3,4		(0.23)%		(0.23)%		(0.23)%		(0.22)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.77%		1.52%		1.02%		0.52%

1

The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

2

Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

3

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

4

The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through February 28, 2018 so that total annual fund operating expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.54% of the average daily net assets of any class of Fund shares. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

16.	The section “Fund Summaries—Nuveen Small Cap Index Fund—Fees and Expenses of the Fund—Example” is deleted in its entirety and replaced with the following:

Example

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:


	Redemption								No Redemption
	A		C		R3		I		A		C		R3		I
1 Year	$	79	$	155	$	104	$	53	$	79	$	155	$	104	$	53
3 Years	$	280	$	513	$	358	$	199	$	280	$	513	$	358	$	199
5 Years	$	514	$	912	$	649	$	375	$	514	$	912	$	649	$	375
10 Years	$	1,189	$	2,030	$	1,477	$	883	$	1,189	$	2,030	$	1,477	$	883

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

February 28, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Other Expenses and Fee Waivers and/or Expense Reimbursements have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond February 28, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.00%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.77%

3 Years

rr_ExpenseExampleYear03

280

10 Years

rr_ExpenseExampleYear10

1,189

3 Years

rr_ExpenseExampleNoRedemptionYear03

280

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,189

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.75%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.52%

3 Years

rr_ExpenseExampleYear03

513

10 Years

rr_ExpenseExampleYear10

2,030

3 Years

rr_ExpenseExampleNoRedemptionYear03

513

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,030

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.25%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.02%

3 Years

rr_ExpenseExampleYear03

358

10 Years

rr_ExpenseExampleYear10

1,477

3 Years

rr_ExpenseExampleNoRedemptionYear03

358

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,477

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.74%

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.52%

3 Years

rr_ExpenseExampleYear03

199

10 Years

rr_ExpenseExampleYear10

883

3 Years

rr_ExpenseExampleNoRedemptionYear03

199

10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 883

Risk/Return:

rr_RiskReturnAbstract

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Management Fees and Other Expenses have been restated to reflect current contractual fees.

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The following example is intended to help you compare the cost of investing in 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

No Redemption

Risk/Return:

rr_RiskReturnAbstract

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.10%

1 Year