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]

rr_OperatingExpensesCaption

Annual Fund 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 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 24% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

24.00%

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

rr_OtherExpensesNewFundBasedOnEstimates

Other Expenses and Acquired Fund Fees and Expenses are based on estimated amounts for the current fiscal year.

Acquired Fund Fees and Expenses, Based on Estimates [Text]

rr_AcquiredFundFeesAndExpensesBasedOnEstimates

Other Expenses and Acquired Fund Fees and Expenses are based on estimated amounts for the current fiscal year.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

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]

rr_ExpenseExampleByYearCaption

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, and that you earn a 5% return each year. The example also assumes that the fund’s operating expenses remain the same, except that it reflects the rate and duration of any fee waivers noted in the table above. 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

VP Avantis Global Equity Allocation Fund is a “fund of funds,” meaning that it seeks to achieve its objective by investing in Avantis exchange-traded funds (ETFs) (collectively, the underlying funds). The underlying funds generally represent a broadly diversified basket of equity securities that seek to overweight securities that the portfolio managers expect, based on factors such as company size, profitability and value attributes, to have higher returns or better risk characteristics than the fund’s benchmark, the MSCI All Country World IMI Index, which is a passive, global market-cap weighted index.

The following table indicates the fund’s target weight and range for allocation among the fund’s major asset classes and shows the underlying funds that comprise each asset class. This information is as of the date of this prospectus.


	Target Weight	Target Range
U.S. Equity	57%	50% to 75%
Avantis U.S. Equity ETF
Avantis U.S. Large Cap Equity ETF
Avantis U.S. Large Cap Value ETF
Avantis U.S. Mid Cap Equity ETF
Avantis U.S. Mid Cap Value ETF
Avantis U.S. Small Cap Equity ETF
Avantis U.S. Small Cap Value ETF
Non-U.S. Developed Markets	27%	20% to 50%
Avantis International Equity ETF
Avantis International Large Cap Value ETF
Avantis International Small Cap Equity ETF
Avantis International Small Cap Value ETF
Emerging Markets	8%	0% to 25%
Avantis Emerging Markets Equity ETF
Avantis Emerging Markets Small Cap Equity ETF
Avantis Emerging Markets Value ETF
Sector Equity	8%	0% to 15%
Avantis Inflation Focused Equity ETF
Avantis Real Estate ETF

Under normal market conditions, the fund will invest at least 80% of its assets in equity ETFs. The managers will allocate to the underlying funds across geographies and investment styles to achieve the desired allocation. The U.S. vs. non-U.S. allocations across geographies will be predicated on each region’s relative market capitalization within the total global equity market, with a home bias toward the U.S. (as reflected in the target ranges). Under normal market conditions, the fund (via the underlying funds) will invest at least 30% of its assets in securities of issuers located outside the United States and will allocate its assets among at least three different countries (one of which may be the United States). The portfolio managers will review the fund’s allocations at least weekly to determine whether rebalancing is appropriate and will rebalance the fund as necessary to keep the allocations within the target ranges. To better balance risks in changing market environments and control costs and tax realizations, the portfolio managers may reallocate within the target range when prevailing market conditions and relative performance of certain underlying strategies lead to deviations from the targets. We reserve the right to modify the target ranges and underlying funds from time to time should circumstances warrant a change.

Strategy Portfolio Concentration [Text]

rr_StrategyPortfolioConcentration

Under normal market conditions, the fund will invest at least 80% of its assets in equity ETFs.

Risk [Heading]

rr_RiskHeading

Principal Risks

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Fund Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The fund’s performance history is not available as of the date of this prospectus. When the fund has investment results for a full calendar year, this section will feature charts that show annual total returns, highest and lowest quarterly returns and average annual total returns for the fund. These charts will provide some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compare with those of a broad measure of market performance. For current performance information, please visit americancentury.com.

Performance information is designed to help you see how fund returns can vary. Keep in mind that past performance (before and after taxes) does not predict how the fund will perform in the future.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

Performance information is designed to help you see how fund returns can vary.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

The fund’s performance history is not available as of the date of this prospectus.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

americancentury.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Keep in mind that past performance (before and after taxes) does not predict how the fund will perform in the future.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Risk Lose Money [Member]

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Loss of money is a risk of investing in the fund; at any given time your shares may be worth less than the price you paid for them.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

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.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Allocation Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Allocation Risk — The fund’s performance and risks depend in part on the managers’ skill in selecting and weighting the underlying funds, and implementing any deviations from the target range. The managers’ evaluations and assumptions regarding asset classes or underlying funds may differ from actual market conditions.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Fund Of Funds Risks Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Fund of Funds Risks — The fund’s performance and risks reflect the performance and risks of the underlying funds in which it invests, and the fund will indirectly bear its proportional share of operating costs of the underlying funds it holds. The fund’s investment in other funds advised by American Century Investments may create a conflict of interest for the fund’s advisor.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Equity Securities Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Equity Securities Risk — The underlying funds invest in equity securities. The value of equity securities may fluctuate due to changes in investor perception of a specific issuer, changes in the general condition of the stock market, or occurrences of political or economic events that affect equity issuers and the market. Common stock prices may be particularly sensitive to rising interest rates, as the cost of capital rises and borrowing costs increase.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Foreign Securities Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Foreign Securities Risk — Some of the underlying funds invest in foreign securities. Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), and natural disasters occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Emerging Market Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Emerging Market Risk — Some of the underlying funds invest in emerging markets securities. Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets. Additionally, certain jurisdictions do not provide the Public Company Accounting Oversight Board (PCAOB) with sufficient access to inspect audit work papers and practices, or otherwise do not cooperate with U.S. regulators, potentially exposing investors in U.S. capital markets to significant risks.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | ETF Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

ETF Risk — ETF shares are based on market price rather than net asset value (NAV), as a result, shares of the underlying funds that are ETFs may trade at a price greater than NAV (a premium) or less than NAV (a discount). The fund may also incur brokerage commissions, as well as the cost of the bid/ask spread, when purchasing or selling ETF shares.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Small- And Mid-Cap Stock Risks Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Small- and Mid-Cap Stock Risks — Stocks of smaller companies may be more volatile than larger-company stocks. Smaller companies may have limited financial resources, product lines and markets, and their securities may trade less frequently and in more limited volumes than the securities of larger companies, which could lead to higher transaction costs. To the extent an underlying fund invests in these companies, it may take on more risk.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Cash Transactions Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Cash Transactions Risk — The underlying funds that are ETFs may effect their creations and redemptions for cash, rather than for in-kind securities. Therefore, they may be required to sell portfolio securities and subsequently recognize gains on such sales that they might not have recognized if they were to distribute portfolio securities in-kind. As such, the fund’s investments may be less tax-efficient than investments in ETFs that distribute portfolio securities entirely in-kind. Cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. Brokerage fees and taxes will be higher than if the underlying funds sold and redeemed shares in-kind.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Style Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Style Risk — If at any time the market is not favoring the fund’s value- and profitability-oriented investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Market Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Market Risk — The value of the fund’s shares will go up and down based on the performance of the underlying funds in which it invests. The value of the underlying funds’ shares will, in turn, fluctuate based on the performance of the companies whose securities they own and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Market Trading Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Market Trading Risk — The underlying funds that are ETFs face numerous market trading risks, including the potential lack of an active market for fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation and/or redemption process. Any of these factors, among others, may lead to an underlying fund’s shares trading at a premium or discount to NAV. Thus, the fund may pay more (or less) than NAV when it buys shares of the underlying funds in the secondary market, and it may receive less (or more) than NAV when it sells those shares in the secondary market.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Real Estate Investing Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Real Estate Investing Risk — If an underlying fund invests in real estate, it may be subject to many of the same risks as a direct investment in real estate. These risks include changes in economic conditions, interest rates, property values, property tax increases, overbuilding and increased competition, environmental contamination, zoning and natural disasters. This is due to the fact that the value of the underlying fund’s investments may be affected by the value of the real estate owned by the companies in which it invests.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Authorized Participant Concentration Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Authorized Participant Concentration Risk — Only an authorized participant may engage in creation or redemption transactions directly with the underlying funds that are ETFs. These underlying funds may have a limited number of institutions that act as authorized participants. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the underlying fund and no other authorized participant is able to step forward to process creation and/or redemption orders, the underlying fund shares may trade at a discount to net asset value (NAV) and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Price Volatility Risk Member

Prospectus [Line Items]

rr_ProspectusLineItems

Risk [Text Block]

rr_RiskTextBlock

Price Volatility Risk — The value of the fund’s shares may fluctuate significantly in the short term.

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Class I

Prospectus [Line Items]

rr_ProspectusLineItems

Trading Symbol

dei_TradingSymbol

AVVPX

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

none

^[1]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.21%

^[1]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

0.86%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.21%)

^[2]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

0.65%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 208

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Class II

Prospectus [Line Items]

rr_ProspectusLineItems

Trading Symbol

dei_TradingSymbol

AVVAX

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.65%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

none

^[1]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.21%

^[1]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

1.11%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.21%)

^[2]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

0.90%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 92

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 287

Variable Portfolios Prospectus | VP Avantis Global Equity Allocation Fund | Y Class

Prospectus [Line Items]

rr_ProspectusLineItems

Trading Symbol

dei_TradingSymbol

AVVYX

Management Fees (as a percentage of Assets)

rr_ManagementFeesOverAssets

0.30%

Distribution and Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

none

^[1]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.21%

^[1]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

0.51%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.21%)

^[2]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

0.30%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 31

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

$ 97

[1]

Other Expenses and Acquired Fund Fees and Expenses are based on estimated amounts for the current fiscal year.

[2]

The advisor will waive a portion of the fund’s management fee equal to the expenses attributable to the management fees of American Century-advised underlying funds. The amount of this waiver will fluctuate depending on the fund’s daily allocations to such funds. This waiver is expected to remain in effect permanently, and it cannot be terminated without the approval of the Board of Directors.