Label	Element	Value
Real Return Portfolio
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Real Return Portfolio
Objective [Heading]	rr_ObjectiveHeading	Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Portfolio’s investment goal is total return that equals or exceeds the rate of inflation over the long term, consistent with prudent investment management.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Portfolio
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 Portfolio. The Portfolio’s annual operating expenses do not reflect the separate account fees charged in the variable annuity or variable life insurance policy (“Variable Contracts”), in which the Portfolio is offered. If the separate account’s fees were shown, the Portfolio’s annual operating expenses would be higher. Please see your Variable Contract prospectus for more details on the separate account fees.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Portfolio 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. These costs, which are not reflected in annual portfolio operating expenses or in the example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio’s portfolio turnover rate was 128% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	128.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	Expense Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. The Example does not reflect charges imposed by the Variable Contract. If the Variable Contract fees were reflected, the expenses would be higher. See the Variable Contract prospectus for information on such charges. Although your actual costs may be higher or lower, based on these assumptions and the net expenses shown in the fee table, your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies of the Portfolio
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Portfolio attempts to achieve its investment goal by investing, under normal circumstances, primarily in inflation-adjusted debt securities including inflation-indexed bonds issued by the U.S. Treasury and inflation-indexed securities issued by other entities such as U.S. and foreign corporations and foreign governments. As part of its investment strategy, the Portfolio may also invest in debt securities that are not inflation-indexed and derivative instruments, such as forwards, futures contracts or swap agreements in an effort to enhance returns, provide inflation hedges or foreign currency hedges, increase market exposure and investment flexibility, or to adjust exposures. “Real return” equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. The subadviser may engage in frequent and active trading of portfolio securities.
Risk [Heading]	rr_RiskHeading	Principal Risks of Investing in the Portfolio
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	There can be no assurance that the Portfolio’s investment goal will be met or that the net return on an investment in the Portfolio will exceed what could have been obtained through other investment or savings vehicles. Shares of the Portfolio are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation. As with any mutual fund, there is no guarantee that the Portfolio will be able to achieve its investment goal. If the value of the assets of the Portfolio goes down, you could lose money. The following is a summary description of the principal risks of investing in the Portfolio. Risks of Investing in Bonds. The Portfolio invests significantly in bonds. As with any fund that invests significantly in bonds, the value of your investment in the Portfolio may go up or down in response to changes in interest rates or defaults (or even the potential for future default) by bond issuers. To the extent the Portfolio is invested in bonds, movements in the bond market generally may affect its performance. In addition, individual bonds selected for the Portfolio may underperform the market generally. Risks of Investing in Inflation-Indexed Securities. Inflation-indexed securities are debt instruments whose principal is indexed to an official or designated measure of inflation, such as the Consumer Price Index in the United States. Inflation-indexed securities issued by a foreign government or foreign corporation are adjusted to reflect a comparable inflation index, calculated by that government. Inflation-indexed securities are sensitive to changes in the real interest rate, which is the nominal interest rate minus the expected rate of inflation. The price of an inflation-indexed security will increase if real interest rates decline, and decrease if real interest rates increase. If the interest rate rises for reasons other than inflation, the value of such instruments can be negatively impacted. Interest income will vary depending on changes to the principal amount of the security. For U.S. tax purposes, both interest payments and inflation adjustments to principal are treated as interest income subject to taxation when received or accrued, and inflation adjustments to principal are subject to taxation when the adjustment is made and not when the instrument matures. Repayment of the original principal upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury inflation-protected bonds (“TIPS”), even during a period of deflation. However, the current market value of a fixed income security is not guaranteed, and will fluctuate. Inflation-indexed securities, other than TIPS, may not provide a similar guarantee and may be supported only by the credit of the issuing entity. If a guarantee of principal is not provided, the adjusted principal value of the fixed income security repaid at maturity may be less than the original principal. Inflation-indexed securities issued by corporations may be similar to TIPS, but are subject to the risk of the corporation’s inability to meet principal and interest payments on the obligation and may also be subject to price volatility due to such factors as interest rate sensitivity, market perception of the credit-worthiness of the issuer and general market liquidity. There are many different types of corporate bonds, and each bond issue has specific terms. Interest Rate Fluctuations Risk. Fixed income securities may be subject to volatility due to changes in interest rates. Longer-term and lower coupon bonds tend to be more sensitive to changes in interest rates. Interest rates have been historically low, so the Portfolio faces a heightened risk that interest rates may rise. U.S. Government Obligations Risk. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. Government and generally have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government. Foreign Investment Risk. The Portfolio’s investments in securities of foreign issuers or issuers with significant exposure to foreign markets involve additional risk. Foreign countries in which the Portfolio invests may have markets that are less liquid, less regulated and more volatile than U.S. markets. The value of the Portfolio’s investments may decline because of factors affecting the particular issuer as well as foreign markets and issuers generally, such as unfavorable government actions, and political or financial instability. Lack of information may also affect the value of these securities. The risks of foreign investments are heightened when investing in issuers in emerging market countries. Foreign Sovereign Debt Risk. Foreign sovereign debt securities are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt. If a governmental entity defaults, it may ask for more time in which to pay or for further loans. Derivatives Risk. To the extent a contract is used to hedge another position in the portfolio, the Portfolio will be exposed to the risks associated with hedging as described in the glossary. To the extent a forward, option or futures contract is used to enhance return, rather than as a hedge, the Portfolio will be directly exposed to the risks of the contract. Gains or losses from non-hedging positions may be substantially greater than the cost of the position. Hedging Risk. While hedging strategies can be very useful and inexpensive ways of reducing risk, they are sometimes ineffective due to unexpected changes in the market or exchange rates. Hedging also involves the risk that changes in the value of the related security will not match those of the instruments being hedged as expected, in which case any losses on the instruments being hedged may not be reduced. For gross currency hedges, there is an additional risk, to the extent that these transactions create exposure to currencies in which the Portfolio’s securities are not denominated. Concentration Risk. When the Portfolio concentrates its investments in assets in a particular industry, the Portfolio is more sensitive to factors affecting that industry, such as changes in the regulatory or competitive environment or in investor perceptions regarding an industry. This means that the value of the Portfolio is subject to greater volatility than a portfolio that invests in a broader range of companies and industries. Credit Risk. Credit risk applies to most debt securities, but is generally not a factor for obligations backed by the “full faith and credit” of the U.S. Government. The Portfolio could lose money if the issuer of a fixed income security is unable or perceived to be unable to pay interest or repay principal when it becomes due. Affiliated Fund Rebalancing Risk. The Portfolio may be an investment option for other mutual funds for which SunAmerica Asset Management, LLC (“SAAMCo” or the “Adviser”) serves as investment adviser that are managed as “funds of funds.” From time to time, the Portfolio may experience relatively large redemptions or investments due to the rebalancing of a fund of funds. In the event of such redemptions or investments, the Portfolio could be required to sell securities or to invest cash at a time when it is not advantageous to do so. Management Risk. The Portfolio is subject to management risk because it is an actively managed investment portfolio. The Portfolio’s portfolio managers apply investment techniques and risk analyses in making investment decisions, but there can be no guarantee that these decisions or individual securities selected by the portfolio managers will produce the desired results. Market Risk. The Portfolio’s share price can fall because of weakness in the broad market, a particular industry, or specific holdings. The market as a whole can decline for many reasons, including adverse political or economic developments in the U.S. or abroad, changes in investor psychology, or heavy institutional selling. In addition, the subadviser’s assessment of companies held in the Portfolio may prove incorrect, resulting in losses or poor performance even in a rising market. Issuer Risk. The value of a security may decline for a number of reasons directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods and services. Active Trading Risk. A strategy used whereby a Portfolio may engage in frequent trading of portfolio securities to achieve its investment goal. Active trading may result in high portfolio turnover and correspondingly greater brokerage commissions and other transaction costs for the Portfolio. During periods of increased market volatility, active trading may be more pronounced.
Risk Lose Money [Text]	rr_RiskLoseMoney	If the value of the assets of the Portfolio goes down, you could lose money.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Shares of the Portfolio are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following Risk/Return Bar Chart and Table illustrate the risks of investing in shares of the Portfolio by showing changes in the Portfolio’s performance from calendar year to calendar year and comparing the Portfolio’s average annual returns to those of the of Barclays World Government Inflation-Linked 1-10 Year Bond Index (Hedged to USD) and Barclays 1-10 Year U.S. Treasury Inflation Protected Securities (TIPS) Index. Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown. Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following Risk/Return Bar Chart and Table illustrate the risks of investing in shares of the Portfolio by showing changes in the Portfolio’s performance from calendar year to calendar year and comparing the Portfolio’s average annual returns to those of the of Barclays World Government Inflation-Linked 1-10 Year Bond Index (Hedged to USD) and Barclays 1-10 Year U.S. Treasury Inflation Protected Securities (TIPS) Index.
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	(Class 3 Shares)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the periods shown in the bar chart, the highest return for a quarter was 9.95% (quarter ended June 30, 2009) and the lowest return for a quarter was -10.56% (quarter ended December 31, 2008). The year-to-date calendar return as of June 30, 2015 was -0.10%.
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date calendar return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2015
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(0.10%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	9.95%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(10.56%)
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns (For the periods ended December 31, 2014)
Real Return Portfolio \| Barclays World Government Inflation Linked 1-10 Year Bond Index (Hedged to USD) Class 1 Comparison
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	2.04%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.82%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	0.89%
Real Return Portfolio \| Barclays 1-10 Year U.S. Treasury Inflation Protected Securities (TIPS) Index Class 1 Comparison
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	0.91%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.78%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	(0.11%)
Real Return Portfolio \| Barclays World Government Inflation Linked 1-10 Year Bond Index (Hedged to USD) Class 3 Comparison
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	2.04%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.82%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	3.66%
Real Return Portfolio \| Barclays 1-10 Year U.S. Treasury Inflation Protected Securities (TIPS) Index Class 3 Comparison
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	0.91%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.78%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	3.77%
Real Return Portfolio \| CLASS 1
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.59%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.05%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.64%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 65
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	205
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	357
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 798
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	1.87%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	0.11%
Real Return Portfolio \| Class 3
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.59%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.05%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.89%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 91
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	284
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	493
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,096
Annual Return 2006	rr_AnnualReturn2006	7.39%
Annual Return 2007	rr_AnnualReturn2007	3.20%
Annual Return 2008	rr_AnnualReturn2008	(15.37%)
Annual Return 2009	rr_AnnualReturn2009	24.84%
Annual Return 2010	rr_AnnualReturn2010	3.95%
Annual Return 2011	rr_AnnualReturn2011	6.07%
Annual Return 2012	rr_AnnualReturn2012	3.76%
Annual Return 2013	rr_AnnualReturn2013	(5.23%)
Annual Return 2014	rr_AnnualReturn2014	1.66%
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	1.66%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	1.97%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	2.88%

If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Form

-Number N-1A

-Chapter A

-Section 4

-Subsection b

-Paragraph 2

-Subparagraph ii