Label	Element	Value
Large Cap Value Portfolio
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Large Cap Value Portfolio
Objective [Heading]	rr_ObjectiveHeading	Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Portfolio’s investment goal is long-term growth of capital.
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 27% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	27.00%
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, at least 80% of net assets in equity securities of large companies selected through a value strategy. Large-Cap companies will generally include companies whose market capitalizations are equal to or greater than the market capitalization of the smallest company in the Russell 1000^® Index during the most recent 12-month period. As of the most recent annual reconstitution of the Russell 1000^® Index on June 26, 2015, the market capitalization range of the companies in the Index was approximately $2.4 billion to $750 billion. The Portfolio may also invest in equity securities of medium-capitalization companies, foreign securities (up to 30%) and short-term investments (up to 20%). The Portfolio is actively-managed by two subadvisers. To balance the risks of the Portfolio, a portion of the Portfolio is passively-managed by the adviser who seeks to track an index or a subset of an index.
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. 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. Equity Securities Risk. The Portfolio invests principally in equity securities and is therefore subject to the risk that stock prices will fall and may underperform other asset classes. Individual stock prices fluctuate from day-to-day and may decline significantly. Large-Capitalization Companies Risk. Large-cap companies tend to be less volatile than companies with smaller market capitalizations. In exchange for this potentially lower risk, the Portfolio’s value may not rise as much as the value of portfolios that emphasize smaller companies. Value Investing Risk. When investing in securities which are believed to be undervalued in the market, there is a risk that the market may not recognize a security’s intrinsic value for a long period of time, or that a stock judged to be undervalued may actually be appropriately priced. 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. Indexing Risk. The passively-managed index portion of the Portfolio generally will not sell securities in its portfolio and buy different securities over the course of a year other than in conjunction with changes in its target index, even if there are adverse developments concerning a particular security, company or industry. As a result, you may suffer losses that you would not experience with an actively-managed mutual fund. Medium-Capitalization Companies Risk. Securities of medium-cap companies are usually more volatile and entail greater risks than securities of large companies. Affiliated Fund Rebalancing Risk. The Portfolio may be an investment options 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. 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 adviser’s or a 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.
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 S&P 500^® Value 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. Effective December 1, 2009, SAAMCo assumed management of the passively-managed portion of the Portfolio, which portion was previously managed by AIG Global Investment Corp.
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 S&P 500® Value 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 1 Shares)
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the 10-year period shown in the bar chart, the highest return for a quarter was 18.94% (quarter ended June 30, 2009) and the lowest return for a quarter was -22.01% (quarter ended December 31, 2008). The year-to-date calendar return as of June 30, 2015 was -0.76%.
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	(0.76%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	18.94%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(22.01%)
Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns (For the periods ended December 31, 2014)
Large Cap Value Portfolio \| S&P 500®Value Index
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	12.36%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	14.86%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	6.74%
Large Cap Value Portfolio \| Class 1
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.74%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.05%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.79%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 81
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	252
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	439
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 978
Annual Return 2005	rr_AnnualReturn2005	5.04%
Annual Return 2006	rr_AnnualReturn2006	19.96%
Annual Return 2007	rr_AnnualReturn2007	4.07%
Annual Return 2008	rr_AnnualReturn2008	(35.64%)
Annual Return 2009	rr_AnnualReturn2009	25.85%
Annual Return 2010	rr_AnnualReturn2010	15.58%
Annual Return 2011	rr_AnnualReturn2011	(2.04%)
Annual Return 2012	rr_AnnualReturn2012	16.51%
Annual Return 2013	rr_AnnualReturn2013	30.46%
Annual Return 2014	rr_AnnualReturn2014	9.56%
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	9.56%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	13.52%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	7.19%
Large Cap Value Portfolio \| Class 2
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.74%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.15%
Other Expenses	rr_OtherExpensesOverAssets	0.05%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	0.94%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 96
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	300
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	520
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,155
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	9.33%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	13.34%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	7.03%
Large Cap Value Portfolio \| Class 3
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.74%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.05%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	1.04%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 106
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	331
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	574
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,271
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	9.23%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	13.24%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	6.93%

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