The following table describes the fees and expenses you may pay if you buy and hold shares of the fund. The table does not include the fees and expenses associated with your variable annuity or variable life insurance contract. Had they been included, fees and expenses presented below would have been higher. For information regarding the fees and expenses associated with your variable annuity or variable life insurance contract, please refer to your insurance product prospectus.

Operating Expenses Caption [Text]

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

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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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. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 15% of the average value of its portfolio.

Portfolio Turnover, Rate

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15.00%

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other mutual funds. The example does not include fees and expenses associated with your variable annuity or variable life insurance contract. Had they been included, fees and expenses would have been higher.

Expense Example by, Year, Caption [Text]

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The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that you earn 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:

Strategy [Heading]

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Principal Investment Strategies

Strategy Narrative [Text Block]

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The fund invests substantially all of its assets in investment-grade debt securities. An investment-grade security is one that has been rated by an independent rating agency in its top four credit quality categories or, if unrated, determined by the advisor to be of comparable credit quality. To help protect against U.S. inflation, under normal conditions the fund will invest over 50% of its assets in inflation-indexed debt securities. These securities include inflation-indexed U.S. Treasury securities, inflation-indexed securities issued by U.S. government agencies and instrumentalities other than the U.S. Treasury, and inflation-indexed securities issued by other entities such as corporations and foreign governments. Inflation-indexed securities are designed to protect the future purchasing power of the money invested in them. The fund also may invest in debt securities that are not inflation-indexed such as corporate bonds and notes, bank loans, commercial paper, and mortgage- or asset-backed securities.

The fund also may invest in derivative instruments, provided that such investments are in keeping with the fund’s investment objective. For example, the fund may use swap agreements to manage or reduce the risk of the effects of inflation with respect to the fund’s position in non-inflation-indexed securities. The fund also may enter into foreign currency exchange transactions for hedging purposes or to enhance returns. The fund may also invest in collateralized debt obligations, including collateralized loan obligations, and similarly structured investments.

The portfolio managers are not limited to a specific weighted average maturity range. However, the portfolio managers monitor the fund’s weighted average maturity and seek to adjust it as appropriate, taking into account market conditions, the current inflation rate and other relevant factors.

Securities issued by the U.S. Treasury and certain U.S. government agencies, such as the Government National Mortgage Association (Ginnie Mae), are supported by the full faith and credit of the U.S. government. Securities issued by other U.S. government agencies, such as the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), and the Federal Home Loan Bank are not guaranteed by the U.S. Treasury or supported by the full faith and credit of the U.S. government. However, these agencies are authorized to borrow from the U.S. Treasury to meet their obligations. Inflation-indexed securities issued by non-U.S. government entities are backed only by the credit of the issuer.

Risk [Heading]

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Principal Risks

Risk Narrative [Text Block]

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•

Real Interest Rate Risk – Inflation-indexed securities trade at prevailing real, or after-inflation, interest rates. The real interest rate is the current market interest rate minus the market’s inflation expectations. Generally, when real interest rates rise, the value of the fund’s debt securities will decline. The opposite is true when real interest rates decline. A period of rising interest rates may negatively affect the fund’s performance.


•	Credit Risk – The value of the fund’s debt securities will be affected adversely by the inability or perceived inability of the issuers of these securities to make interest and principal payments as they become due. As a result, the fund’s share price also could decrease. Changes in the credit rating of a debt security held by the fund could have a similar effect.

•

Inflation Risk – Due to Internal Revenue Code provisions governing insurance product funds, no more than 55% of the fund’s assets may be invested in securities issued by the same entity, such as the U.S. Treasury. Because the number of inflation-indexed debt securities issued by other entities is limited, the fund may have a substantial position in non-inflation-indexed securities. To the extent that this is the case, that portion of the portfolio will not be automatically protected from inflation.


•	Prepayment Risk – The fund may invest in debt securities backed by mortgages or other assets. If these underlying assets are prepaid, the fund may benefit less from declining interest rates than other funds.

•

Liquidity Risk – During periods of market turbulence or unusually low trading activity, in order to meet redemptions it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund’s share price. Changing regulatory and market conditions, including increases in interest rates and credit spreads may adversely affect the liquidity of the fund’s investments.

•

Derivative Risk – The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional instruments. Derivatives are subject to a number of risks, including liquidity, interest rate, market, credit and correlation risk. They also involve the risk of mispricing or improper valuation, the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the risk of default or bankruptcy of the other party to the swap agreement.

•

Bank Loan Risk – The market for bank loans may not be highly liquid and the fund may have difficulty selling them. In connection with purchasing loan participations, the fund generally will have no right to enforce compliance by borrowers with loan terms nor any set off rights, and the fund may not benefit directly from any posted collateral. As a result, the fund may be subject to the credit risk of both the borrower and the lender selling the participation. Bank loan transactions may take more than seven days to settle, meaning that proceeds would be unavailable to make additional investments or meet redemptions.

•

Collateralized Debt Obligations/Collateralized Loan Obligation Risk – Collateralized debt obligations and collateralized loan obligations (CLOs) are subject to credit, interest rate, valuation, and prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of CLOs may be affected by, among other things, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, prices and interest rate of underlying assets.


•	Foreign Securities Risk – Foreign securities have certain unique risks, such as currency risk, social, political and economic risk, and foreign market and trading risk. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.


•	Market Risk – The value of the securities owned by the fund may go up and down, sometimes rapidly or unpredictably.

•

Redemption Risk –The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss or increase the fund’s transaction costs. To the extent that an insurance company has a large position in the fund, the fund may experience relatively large redemptions if such insurance company reallocates its assets.


•	Principal Loss – It is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Risk Lose Money [Text]

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Principal Loss – It is possible to lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]

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An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

Bar Chart and Performance Table [Heading]

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Fund Performance

Performance Narrative [Text Block]

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The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Class II shares. The table shows how the fund’s average annual returns for the periods shown compare with those of a broad measure of market performance. Fees associated with your variable annuity or variable life insurance contract are not reflected in the chart or table below. Had they been included, returns presented below would have been lower. The fund’s past performance is not necessarily an indication of how the fund will perform in the future.

Performance Information Illustrates Variability of Returns [Text]

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Performance Past Does Not Indicate Future [Text]

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The fund’s past performance is not necessarily an indication of how the fund will perform in the future.

Bar Chart [Heading]

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Calendar Year Total Returns

Bar Chart Closing [Text Block]

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Highest Performance Quarter (1Q 2009): 4.34% Lowest Performance Quarter (2Q 2013): -7.16%

Performance Table Heading

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Average Annual Total Returns For the calendar year ended December 31, 2018

Variable Portfolio II Prospectus | VP INFLATION PROTECTION FUND | Bloomberg Barclays U.S. Treasury Inflation Protected Securities (TIPS) Index

Prospectus:

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Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses or taxes)

Label

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Bloomberg Barclays U.S. Treasury Inflation Protected Securities (TIPS) Index (reflects no deduction for fees, expenses or taxes)

1 Year

rr_AverageAnnualReturnYear01

(1.26%)

5 Years

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1.69%

10 Years

rr_AverageAnnualReturnYear10

3.64%

Variable Portfolio II Prospectus | VP INFLATION PROTECTION FUND | CLASS I

Prospectus:

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Trading Symbol

dei_TradingSymbol

APTIX

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.46%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

0.02%

Expenses (as a percentage of Assets)

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0.48%

Expense Example, with Redemption, 1 Year

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$ 49

Expense Example, with Redemption, 3 Years

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154

Expense Example, with Redemption, 5 Years

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269

Expense Example, with Redemption, 10 Years

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$ 604

Label

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Class I

1 Year

rr_AverageAnnualReturnYear01

(2.57%)

5 Years

rr_AverageAnnualReturnYear05

1.42%

10 Years

rr_AverageAnnualReturnYear10

3.29%

Variable Portfolio II Prospectus | VP INFLATION PROTECTION FUND | CLASS II

Prospectus:

rr_ProspectusTable

Trading Symbol

dei_TradingSymbol

AIPTX

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.46%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

0.02%

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

0.73%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 75

Expense Example, with Redemption, 3 Years

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234

Expense Example, with Redemption, 5 Years

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407

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 907

Annual Return 2009

rr_AnnualReturn2009

10.22%

Annual Return 2010

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5.12%

Annual Return 2011

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11.74%

Annual Return 2012

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7.39%

Annual Return 2013

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(8.48%)

Annual Return 2014

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3.30%

Annual Return 2015

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(2.47%)

Annual Return 2016

rr_AnnualReturn2016

4.39%

Annual Return 2017

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3.67%

Annual Return 2018

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(2.82%)

Highest Quarterly Return, Label

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Highest Performance Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.34%

Lowest Quarterly Return, Label

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Lowest Performance Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

Lowest Quarterly Return

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(7.16%)

Label

rr_AverageAnnualReturnLabel

Class II

1 Year

rr_AverageAnnualReturnYear01

(2.82%)

5 Years

rr_AverageAnnualReturnYear05

1.16%

10 Years

rr_AverageAnnualReturnYear10

3.03%