485BPOS

As filed with the Securities and Exchange Commission on December 20, 2016
File Nos. 333-76651, 811-09301

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	x
Pre-Effective Amendment No.	o
Post-Effective Amendment No. 101	x
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 104	x
(Check appropriate box or boxes)

TIAA-CREF Funds
(Exact Name of Registrant as Specified in Charter)

730 Third Avenue
New York, New York 10017-3206
(Address of Principal Executive Offices) (Zip Code)
Registrant’s Telephone Number, including Area Code: (800) 842-2733

John M. McCann, Esq.
TIAA-CREF Funds
8500 Andrew Carnegie Boulevard
Charlotte, North Carolina 28262

(Name and Address of Agent for Service)

Copy to:
Jeffrey S. Puretz, Esq.
Dechert LLP
1900 K Street, N.W.
Washington, D.C. 20006

Approximate Date of Proposed Public Offering:
As soon as practicable after effectiveness of the Registration Statement.

It is proposed that this filing will become effective (check appropriate box):

x	Immediately upon filing pursuant to paragraph (b)
o	On (date) pursuant to paragraph (b)
o	60 days after filing pursuant to paragraph (a)(1)
o	75 days after filing pursuant to paragraph (a)(2)
o	On (date) pursuant to paragraph (a)(1)
o	On (date) pursuant to paragraph (a)(2) of rule 485
If appropriate, check the following box:
o	This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Explanatory Note

This post-effective amendment on Form 485BPOS is being submitted for the sole purpose of furnishing, in Exhibit 101, XBRL Interactive Data for the related official 485BPOS filing which was submitted to the Commission on December 8, 2016.

No other changes have been made to this Form 485BPOS. This Form 485BPOS does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update any related disclosures made in the related official Form 485BPOS.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, TIAA-CREF Funds certifies that it meets all the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York, and State of New York on the 20^th day of December, 2016.

TIAA-CREF FUNDS
By:	/s/Robert G. Leary
Name:	Robert G. Leary
Title:	President and Principal Executive Officer

Pursuant to the requirements of the Securities Act, this registration statement has been signed below by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
/s/Robert G. Leary	President and Principal Executive Officer	December 20, 2016
Robert G. Leary	(Principal Executive Officer)
/s/Glenn E. Brightman	Principal Financial Officer,	December 20, 2016
Glenn E. Brightman	Principal Accounting Officer and Treasurer
	(Principal Financial and Accounting Officer)

SIGNATURE OF TRUSTEE	DATE	SIGNATURE OF TRUSTEE	DATE
*	December 20, 2016	*	December 20, 2016
Forrest Berkley		Thomas J. Kenny
*	December 20, 2016	*	December 20, 2016
Nancy A. Eckl		Bridget A. Macaskill
*	December 20, 2016	*	December 20, 2016
Michael A. Forrester		James M. Poterba
*	December 20, 2016	*	December 20, 2016
Howell E. Jackson		Maceo K. Sloan
		*	December 20, 2016
		Laura T. Starks
/s/Rachael M. Zufall
Rachael M. Zufall
as attorney-in-fact	December 20, 2016

* Signed by Rachael M. Zufall pursuant to powers of attorney previously filed with the Securities and Exchange Commission.

EXHIBIT LIST

101.	INS XBRL Instance Document
101.	SCH XBRL Taxonomy Extension Schema
101.	DEF XBRL Taxonomy Extension Definition Linkbase
101.	LAB XBRL Taxonomy Extension Label Linkbase
101.	PRE XBRL Taxonomy Extension Presentation Linkbase

XML

TIAA-CREF International Small-Cap Equity Fund

TIAA-CREF International Small-Cap Equity Fund

Investment objective

The Fund seeks a favorable long-term total return, mainly through capital appreciation.

Fees and expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - TIAA-CREF International Small-Cap Equity Fund - USD ($)	Institutional Class	Advisor Class	Premier Class	Retirement Class	Retail Class
Maximum sales charge imposed on purchases (percentage of offering price)	none	none	none	none	none
Maximum deferred sales charge	none	none	none	none	none
Maximum sales charge imposed on reinvested dividends and other distributions	none	none	none	none	none
Redemption or exchange fee	none	none	none	none	none
Account maintenance fee (annual fee on accounts under $2,000)	none	none	none	none	$ 15.00

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

Annual Fund Operating Expenses - TIAA-CREF International Small-Cap Equity Fund		Institutional Class	Advisor Class	Premier Class	Retirement Class	Retail Class
Management fees		0.65%	0.65%	0.65%	0.65%	0.65%
Distribution (Rule 12b-1) fees				0.15%		0.25%
Other expenses	[1]	0.07%	0.13%	0.07%	0.32%	0.21%
Total annual Fund operating expenses		0.72%	0.78%	0.87%	0.97%	1.11%
Waivers and expense reimbursements	[2]
Total annual Fund operating expenses after fee waiver and/or expense reimbursement		0.72%	0.78%	0.87%	0.97%	1.11%

Example

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before expense reimbursements, remain the same. The example assumes that the Fund’s expense reimbursement agreement will remain in place through December 8, 2017, but that there will be no waiver or expense reimbursement agreement in effect thereafter. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - TIAA-CREF International Small-Cap Equity Fund - USD ($)	Institutional Class	Advisor Class	Premier Class	Retirement Class	Retail Class
1 year	$ 74	$ 80	$ 89	$ 99	$ 113
3 years	$ 230	$ 249	$ 278	$ 309	$ 353

Portfolio turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. The Fund has no annual portfolio turnover rate because the Fund is newly operational.

Principal investment strategies

Under normal circumstances, the Fund invests at least 80% of its assets in small-cap equity securities of foreign issuers. In seeking a favorable long-term total return, the Fund will invest in securities that the Fund’s investment adviser, Teachers Advisors, LLC (“Advisors”), believes have favorable prospects for long-term capital appreciation. A small-cap equity security is a security within the capitalization range of the companies included in the Fund’s benchmark index, the MSCI ACWI ex USA Small Cap Index (the “Index”), at the time of purchase. The Fund may invest in equity securities of small companies across a wide range of sectors, growth rates and valuations. From time to time, Advisors reviews the Fund’s sector and country exposure against the Index to seek to control risk in relation to the Index. The Fund may invest in emerging markets to varying degrees, depending on stock-specific opportunities. The Fund considers investments of foreign issuers to generally include any one or more of the following: (1) companies whose securities are principally traded outside of the United States, (2) companies having their principal business operations outside of the United States, (3) companies organized outside of the United States, and (4) foreign governments and agencies or instrumentalities of foreign governments. The Fund has a policy of maintaining investments of equity securities of foreign issuers in at least three countries other than the United States. For purposes of the 80% investment policy, the term “assets” means net assets, plus the amount of any borrowings for investment purposes.

Advisors uses proprietary quantitative models, or models utilizing econometric and mathematical techniques based on financial and investment theories, to evaluate and score a broad universe of stocks in which the Fund invests. These models typically weigh many different variables, including the valuation of the individual stock versus the market or its peers, future earnings and sustainable growth prospects, and the price and volume trends of the stock. The score is used to form the portfolio, and the following additional inputs may also be considered: weightings of the stock and its corresponding sector in the benchmark, correlations of the stocks in the universe and trading costs. The Fund may purchase foreign equity securities denominated in U.S. dollars or in non-U.S. dollar currencies, and equity securities issued in connection with reorganizations and other special situations. Although Advisors does not anticipate that the Fund will have significant exposure to equity securities issued in connection with reorganizations and other special situations, the Fund is not subject to any preset limit.

The overall goal is to build a portfolio of stocks that generate a favorable long-term total return, while also managing the relative risk of the Fund versus the Index. The Fund’s strategy is based upon Advisors’ understanding of the interplay of market factors and does not assure the Fund will perform as intended. The markets or the prices of individual securities may be affected by factors not taken into account in Advisors’ analysis.

Principal investment risks

You could lose money over short or long periods by investing in this Fund. An investment in the Fund, due to the nature of the Fund’s portfolio holdings, typically is subject to the following principal investment risks:

· Market Risk—The risk that market prices of portfolio investments held by the Fund may fall rapidly or unpredictably due to a variety of factors, including changing economic, political or market conditions. Market risk may affect a single issuer, industry or sector of the economy, or it may affect the market as a whole.

· Issuer Risk (often called Financial Risk)—The risk that an issuer’s earnings prospects and overall financial position will deteriorate, causing a decline in the value of the issuer’s financial instruments over short or extended periods of time.

· Small-Cap Risk—The risk that the stocks of small-capitalization companies often experience greater price volatility than large- or mid-sized companies because small-cap companies are often newer or less established than larger companies and are likely to have more limited resources, products and markets. Securities of small-cap companies are often less liquid than securities of larger companies as a result of there being a smaller market for their securities, which can have an adverse effect on the pricing of these securities and on the ability to sell these securities when Advisors deems it appropriate.

· Active Management Risk—The risk that Advisors’ strategy, investment selection or trading execution may cause the Fund to underperform relative to the benchmark index or mutual funds with similar investment objectives.

· Quantitative Analysis Risk—The risk that stocks selected using quantitative modeling and analysis could perform differently from the market as a whole.

· Foreign Investment Risk—Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, currency, market or economic developments and can result in greater price volatility and perform differently from financial instruments of U.S. issuers. This risk may be heightened in emerging or developing markets. Foreign investments may also be less liquid and more difficult to value than investments in U.S. issuers.

· Emerging Markets Risk—The risk of foreign investment often increases in countries with emerging markets. For example, these countries may have more unstable governments than developed countries, and their economies may be based on only a few industries. Because their financial markets may be very small, share prices of financial instruments in emerging market countries may be volatile and difficult to determine. Financial instruments of issuers in these countries may be less liquid than those of issuers in more developed countries. In addition, foreign investors such as the Fund are subject to a variety of special restrictions in many emerging market countries.

· Illiquid Investments Risk—The risk that illiquid investments may be difficult to sell for the value at which they are carried, if at all, or at any price within the desired time frame. Fund investments in securities of small-cap companies are often less liquid than Fund investments in securities of larger companies.

· Special Situation Risk—Stocks of companies involved in acquisitions, consolidations, tender offers or exchanges, takeovers, reorganizations, mergers and other special situations can involve the risk that such situations may not materialize or may develop in unexpected ways. Consequently, those stocks can involve more risk than ordinary securities.

· Currency Risk—The risk that foreign (non-U.S.) currencies may decline in value relative to the U.S. dollar and adversely affect the value of the Fund’s investments in foreign currencies, securities denominated in foreign currencies or derivative instruments that provide exposure to foreign currencies.

Please see the non-summary portion of the Prospectus for more detailed information about the risks described above.

Past performance

Performance information is not available for the Fund for the most recently completed calendar year because the Fund is newly operational.

For current performance information of each share class, including performance to the most recent month-end, please visit www.tiaa.org.

[1] Estimates for the current fiscal year.

[2] Under the Fund's expense reimbursement arrangements, the Fund's investment adviser, Teachers Advisors, LLC, has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired Fund fees and expenses and extraordinary expenses) that exceed: (i) 0.75% of average daily net assets for Institutional Class shares; (ii) 0.90% of average daily net assets for Advisor Class shares; (iii) 0.90% of average daily net assets for Premier Class shares; (iv) 1.00% of average daily net assets for Retirement Class shares; and (v) 1.14% of average daily net assets for Retail Class shares of the Fund. These expense reimbursement arrangements will continue through at least December 8, 2017, unless changed with approval of the Board of Trustees.

XML

Label

Element

Value

TIAA-CREF International Small-Cap Equity Fund

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

TIAA-CREF International Small-Cap Equity Fund

Objective [Heading]

rr_ObjectiveHeading

Investment objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks a favorable long-term total return, mainly through capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund:

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

SHAREHOLDER FEES (fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

Dec. 08, 2017

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. The Fund has no annual portfolio turnover rate because the Fund is newly operational.

Other Expenses, New Fund, Based on Estimates [Text]

rr_OtherExpensesNewFundBasedOnEstimates

Estimates for the current fiscal year.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in shares of the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses, before expense reimbursements, remain the same. The example assumes that the Fund’s expense reimbursement agreement will remain in place through December 8, 2017, but that there will be no waiver or expense reimbursement agreement in effect thereafter. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal investment strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund invests at least 80% of its assets in small-cap equity securities of foreign issuers. In seeking a favorable long-term total return, the Fund will invest in securities that the Fund’s investment adviser, Teachers Advisors, LLC (“Advisors”), believes have favorable prospects for long-term capital appreciation. A small-cap equity security is a security within the capitalization range of the companies included in the Fund’s benchmark index, the MSCI ACWI ex USA Small Cap Index (the “Index”), at the time of purchase. The Fund may invest in equity securities of small companies across a wide range of sectors, growth rates and valuations. From time to time, Advisors reviews the Fund’s sector and country exposure against the Index to seek to control risk in relation to the Index. The Fund may invest in emerging markets to varying degrees, depending on stock-specific opportunities. The Fund considers investments of foreign issuers to generally include any one or more of the following: (1) companies whose securities are principally traded outside of the United States, (2) companies having their principal business operations outside of the United States, (3) companies organized outside of the United States, and (4) foreign governments and agencies or instrumentalities of foreign governments. The Fund has a policy of maintaining investments of equity securities of foreign issuers in at least three countries other than the United States. For purposes of the 80% investment policy, the term “assets” means net assets, plus the amount of any borrowings for investment purposes.

Advisors uses proprietary quantitative models, or models utilizing econometric and mathematical techniques based on financial and investment theories, to evaluate and score a broad universe of stocks in which the Fund invests. These models typically weigh many different variables, including the valuation of the individual stock versus the market or its peers, future earnings and sustainable growth prospects, and the price and volume trends of the stock. The score is used to form the portfolio, and the following additional inputs may also be considered: weightings of the stock and its corresponding sector in the benchmark, correlations of the stocks in the universe and trading costs. The Fund may purchase foreign equity securities denominated in U.S. dollars or in non-U.S. dollar currencies, and equity securities issued in connection with reorganizations and other special situations. Although Advisors does not anticipate that the Fund will have significant exposure to equity securities issued in connection with reorganizations and other special situations, the Fund is not subject to any preset limit.

The overall goal is to build a portfolio of stocks that generate a favorable long-term total return, while also managing the relative risk of the Fund versus the Index. The Fund’s strategy is based upon Advisors’ understanding of the interplay of market factors and does not assure the Fund will perform as intended. The markets or the prices of individual securities may be affected by factors not taken into account in Advisors’ analysis.

Risk [Heading]

rr_RiskHeading

Principal investment risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You could lose money over short or long periods by investing in this Fund. An investment in the Fund, due to the nature of the Fund’s portfolio holdings, typically is subject to the following principal investment risks:

· Market Risk—The risk that market prices of portfolio investments held by the Fund may fall rapidly or unpredictably due to a variety of factors, including changing economic, political or market conditions. Market risk may affect a single issuer, industry or sector of the economy, or it may affect the market as a whole.

· Issuer Risk (often called Financial Risk)—The risk that an issuer’s earnings prospects and overall financial position will deteriorate, causing a decline in the value of the issuer’s financial instruments over short or extended periods of time.

· Small-Cap Risk—The risk that the stocks of small-capitalization companies often experience greater price volatility than large- or mid-sized companies because small-cap companies are often newer or less established than larger companies and are likely to have more limited resources, products and markets. Securities of small-cap companies are often less liquid than securities of larger companies as a result of there being a smaller market for their securities, which can have an adverse effect on the pricing of these securities and on the ability to sell these securities when Advisors deems it appropriate.

· Active Management Risk—The risk that Advisors’ strategy, investment selection or trading execution may cause the Fund to underperform relative to the benchmark index or mutual funds with similar investment objectives.

· Quantitative Analysis Risk—The risk that stocks selected using quantitative modeling and analysis could perform differently from the market as a whole.

· Foreign Investment Risk—Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, currency, market or economic developments and can result in greater price volatility and perform differently from financial instruments of U.S. issuers. This risk may be heightened in emerging or developing markets. Foreign investments may also be less liquid and more difficult to value than investments in U.S. issuers.

· Emerging Markets Risk—The risk of foreign investment often increases in countries with emerging markets. For example, these countries may have more unstable governments than developed countries, and their economies may be based on only a few industries. Because their financial markets may be very small, share prices of financial instruments in emerging market countries may be volatile and difficult to determine. Financial instruments of issuers in these countries may be less liquid than those of issuers in more developed countries. In addition, foreign investors such as the Fund are subject to a variety of special restrictions in many emerging market countries.

· Illiquid Investments Risk—The risk that illiquid investments may be difficult to sell for the value at which they are carried, if at all, or at any price within the desired time frame. Fund investments in securities of small-cap companies are often less liquid than Fund investments in securities of larger companies.

· Special Situation Risk—Stocks of companies involved in acquisitions, consolidations, tender offers or exchanges, takeovers, reorganizations, mergers and other special situations can involve the risk that such situations may not materialize or may develop in unexpected ways. Consequently, those stocks can involve more risk than ordinary securities.

· Currency Risk—The risk that foreign (non-U.S.) currencies may decline in value relative to the U.S. dollar and adversely affect the value of the Fund’s investments in foreign currencies, securities denominated in foreign currencies or derivative instruments that provide exposure to foreign currencies.

Please see the non-summary portion of the Prospectus for more detailed information about the risks described above.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money over short or long periods by investing in this Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Past performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Performance information is not available for the Fund for the most recently completed calendar year because the Fund is newly operational.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

Performance information is not available for the Fund for the most recently completed calendar year because the Fund is newly operational.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.tiaa.org

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

For current performance information of each share class, including performance to the most recent month-end, please visit www.tiaa.org.

TIAA-CREF International Small-Cap Equity Fund | Institutional Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge imposed on reinvested dividends and other distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fee

rr_RedemptionFeeOverRedemption

none

Account maintenance fee (annual fee on accounts under $2,000)

rr_ShareholderFeeOther

none

Management fees

rr_ManagementFeesOverAssets

0.65%

Other expenses

rr_OtherExpensesOverAssets

0.07%

^[1]

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.72%

Waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.72%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 74

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 230

TIAA-CREF International Small-Cap Equity Fund | Advisor Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge imposed on reinvested dividends and other distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fee

rr_RedemptionFeeOverRedemption

none

Account maintenance fee (annual fee on accounts under $2,000)

rr_ShareholderFeeOther

none

Management fees

rr_ManagementFeesOverAssets

0.65%

Other expenses

rr_OtherExpensesOverAssets

0.13%

^[1]

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.78%

Waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.78%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 80

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 249

TIAA-CREF International Small-Cap Equity Fund | Premier Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge imposed on reinvested dividends and other distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fee

rr_RedemptionFeeOverRedemption

none

Account maintenance fee (annual fee on accounts under $2,000)

rr_ShareholderFeeOther

none

Management fees

rr_ManagementFeesOverAssets

0.65%

Distribution (Rule 12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.15%

Other expenses

rr_OtherExpensesOverAssets

0.07%

^[1]

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.87%

Waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.87%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 89

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 278

TIAA-CREF International Small-Cap Equity Fund | Retirement Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge imposed on reinvested dividends and other distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fee

rr_RedemptionFeeOverRedemption

none

Account maintenance fee (annual fee on accounts under $2,000)

rr_ShareholderFeeOther

none

Management fees

rr_ManagementFeesOverAssets

0.65%

Other expenses

rr_OtherExpensesOverAssets

0.32%

^[1]

Total annual Fund operating expenses

rr_ExpensesOverAssets

0.97%

Waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

0.97%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 99

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 309

TIAA-CREF International Small-Cap Equity Fund | Retail Class

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge imposed on purchases (percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge imposed on reinvested dividends and other distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fee

rr_RedemptionFeeOverRedemption

none

Account maintenance fee (annual fee on accounts under $2,000)

rr_ShareholderFeeOther

$ 15.00

Management fees

rr_ManagementFeesOverAssets

0.65%

Distribution (Rule 12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.21%

^[1]

Total annual Fund operating expenses

rr_ExpensesOverAssets

1.11%

Waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

^[2]

Total annual Fund operating expenses after fee waiver and/or expense reimbursement

rr_NetExpensesOverAssets

1.11%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 113

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 353

[1] Estimates for the current fiscal year.

[2] Under the Fund's expense reimbursement arrangements, the Fund's investment adviser, Teachers Advisors, LLC, has contractually agreed to reimburse the Fund for any Total annual Fund operating expenses (excluding interest, taxes, brokerage commissions or other transactional expenses, Acquired Fund fees and expenses and extraordinary expenses) that exceed: (i) 0.75% of average daily net assets for Institutional Class shares; (ii) 0.90% of average daily net assets for Advisor Class shares; (iii) 0.90% of average daily net assets for Premier Class shares; (iv) 1.00% of average daily net assets for Retirement Class shares; and (v) 1.14% of average daily net assets for Retail Class shares of the Fund. These expense reimbursement arrangements will continue through at least December 8, 2017, unless changed with approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Dec. 09, 2016