Investment Strategy	Dec. 31, 2025
LVIP BlackRock Global Growth ETF Allocation Managed Risk Fund
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in equity securities (stocks) and/or fixed income securities (bonds). The Underlying ETF strategy is sub-advised by BlackRock Investment Management, LLC (“BlackRock”). The Underlying ETFs are managed by BlackRock Fund Advisors.The Fund also seeks to stabilize its overall portfolio volatility and reduce downside exposure with a risk management strategy. This is a type of risk management sometimes referred to as an “overlay” because the risk management portion of the portfolio supplements the Fund’s main investment portfolio. Underlying ETF Allocation Strategy. Under normal circumstances, approximately 70% of the Fund’s Underlying ETF assets are invested primarily in equity securities (stocks) and approximately 30% of the Fund’s Underlying ETF assets are invested primarily in fixed income securities (bonds). BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic and foreign equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. The foreign equity securities held by the Underlying ETFs may include companies in emerging markets. The Fund normally maintains investment exposure to at least three countries outside of the U.S. Typically, the Fund invests in a larger number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. A smaller allocation is made to Underlying ETFs that invest primarily in domestic and foreign fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.The financial instruments that are intended to provide exposure similar to the exposure to the Underlying ETFs may include, among other instruments, futures, options, swaps, structured notes and other derivatives. On at least an annual basis, BlackRock will reassess and may make revisions in the Fund’s asset allocation strategy consistent with the Fund’s investment strategy and objective, including revising the weightings among the investments described above and adding or removing Underlying ETFs from the asset allocation strategy. The Adviser will also periodically rebalance the weightings in the Underlying ETFs to the current asset allocation strategy. In general, the adviser does not anticipate making frequent changes in the asset allocation strategy and will not attempt to time the market. The Adviser uses various analytical tools and third-party research to construct the portfolio. The Underlying ETF selection is made based on the Fund’s particular asset allocation strategy, the Adviser’s desired asset class exposures, and the investment styles and performance of the Underlying ETFs. The Adviser also considers the portfolio characteristics and risk profile for each Underlying ETF over various periods and market environments to assess each Underlying ETF’s suitability as an investment for the Fund. The full list of Underlying Funds used by the Fund is included in the Fund’s annual and semi-annual reports and quarterly holdings disclosures.Risk Management Strategy. Milliman Financial Risk Management LLC (“Milliman” or “overlay manager”) implements the Fund’s risk management strategy. Although up to 20% of the Fund’s assets may be used to implement the risk management strategy, under normal market conditions, it is expected that less than 10% of the Fund’s net assets will be used for the strategy. Milliman uses a proprietary volatility forecasting model to manage the assets allocated to this strategy. As part of the risk management strategy, Milliman will invest the portion of Fund assets not invested in Underlying Funds in exchange-traded futures or options contracts, cash collateral to support these contracts and/or high-quality short-term money market investments. Milliman also may use interest rate futures as part of the risk management strategy. The risk management strategy consists of using hedging instruments (short or long positions in exchange-traded futures or options contracts) to stabilize the Fund’s overall portfolio volatility and reduce the downside exposure of the Fund during significant market downturns. “Volatility” in this context is a statistical measurement of the frequency and level of changes in the Fund’s returns without regard to the direction of those changes. Volatility may result from rapid and dramatic price swings of securities held directly or indirectly by the Fund. Parameterization and implementation of the volatility forecasting model may be adjusted based upon changes in market conditions. Milliman uses a proprietary model to monitor and forecast volatility and will adjust the level of exchange-traded futures or options contracts on that basis. Futures or options contracts can be purchased or sold by the Fund for less than their contract value, allowing an efficient use of Fund assets for the risk management strategy. The risk management strategy is separate and distinct from any riders or features of your insurance contract. Milliman selects individual futures or options contracts on indices of domestic and foreign markets that it believes are highly correlated to the Fund’s investment exposure. Milliman primarily will buy or sell (short) futures or options contracts on these indices to decrease the Fund’s aggregate economic exposure (from both Underlying Funds and exchange-traded futures or options) based upon Milliman’s evaluation of market volatility and downside market risk. Short futures contracts increase in value as domestic and/or foreign markets decline. Milliman will seek to hedge currency risks involved in the foreign futures contracts primarily through the use of exchange-traded currency futures contracts. Interest rate futures also may be used in an effort to control the volatility of the Fund’s returns and to synthetically earn a yield premium on the Fund’s cash holdings. Even in periods of low volatility in the markets, Milliman will continue to use the hedging techniques designed to preserve gains in favorable market conditions and reduce losses in adverse market conditions. The Fund’s investment in exchange-traded futures or options and their resulting costs could limit the upside participation of the Fund in strong, appreciating markets relative to unhedged funds. In situations of extreme market volatility, the short positions held in exchange-traded futures or options could potentially reduce the Fund’s net economic exposure to domestic and foreign securities to a substantial degree.
Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block]	The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in equity securities (stocks) and/or fixed income securities (bonds).
Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block]	BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic and foreign equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. The foreign equity securities held by the Underlying ETFs may include companies in emerging markets. The Fund normally maintains investment exposure to at least three countries outside of the U.S. Typically, the Fund invests in a larger number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. A smaller allocation is made to Underlying ETFs that invest primarily in domestic and foreign fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.
LVIP BlackRock US Growth ETF Allocation Managed Risk Fund
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in domestic equity securities (stocks) and/or domestic fixed income securities (bonds).The Fund, under normal circumstances, through the Underlying ETFs, invests at least 80% of its assets in a portfolio of investments that provides exposure to U.S. securities. The Underlying ETF strategy is sub-advised by BlackRock Investment Management, LLC (“BlackRock”). The Underlying ETFs are managed by BlackRock Fund Advisors. The Fund also seeks to stabilize its overall portfolio volatility and reduce downside exposure with a risk management strategy. This is a type of risk management sometimes referred to as an “overlay” because the risk management portion of the portfolio supplements the Fund’s main investment portfolio. Underlying ETF Allocation Strategy. Under normal circumstances, approximately 70% of the Fund’s Underlying ETF assets are invested primarily in domestic equity securities (stocks) and approximately 30% of the Fund’s Underlying ETF assets are invested primarily in domestic fixed income securities (bonds). BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. A smaller allocation is made to Underlying ETFs that invest primarily in domestic fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.The financial instruments that are intended to provide exposure similar to the exposure to the Underlying ETFs may include, among other instruments, futures, options, swaps, structured notes and other derivatives. As a result of the Fund’s use of futures, options, swaps, structured notes and other derivatives, the Fund may also hold U.S. Treasury, short-term, or other fixed income investments, including loans and notes to address regulatory requirements. On at least an annual basis, BlackRock will reassess and may make revisions in the Fund’s asset allocation strategy consistent with the Fund’s investment strategy and objective, including revising the weightings among the investments described above and adding or removing Underlying ETFs from the asset allocation strategy. The Adviser also will periodically rebalance the weightings in the Underlying ETFs to the current asset allocation strategy. In general, the Adviser does not anticipate making frequent changes in the asset allocation strategy and will not attempt to time the market. The Adviser uses various analytical tools and third-party research to construct the portfolio. The Underlying ETF selection is made based on the Fund’s particular asset allocation strategy, the Adviser’s desired asset class exposures, and the investment styles and performance of the Underlying ETFs. The Adviser also considers the portfolio characteristics and risk profile for each Underlying ETF over various periods and market environments to assess each Underlying ETF’s suitability as an investment for the Fund. The full list of Underlying Funds used by the Fund is included in the Fund’s annual and semi-annual reports and quarterly holdings disclosures.Risk Management Strategy. Milliman Financial Risk Management LLC (“Milliman” or “overlay manager”) implements the Fund’s risk management strategy. Although up to 20% of the Fund’s assets may be used to implement the risk management strategy, under normal market conditions, it is expected that less than 10% of the Fund’s net assets will be used for the strategy. Milliman uses a proprietary volatility forecasting model to manage the assets allocated to this strategy. As part of the risk management strategy, Milliman will invest the portion of Fund assets not invested in Underlying Funds in exchange-traded futures or options contracts, cash collateral to support these contracts and/or high-quality short-term money market investments. Milliman also may use interest rate futures as part of the risk management strategy. The risk management strategy consists of using hedging instruments (short or long positions in exchange-traded futures or options contracts) to stabilize the Fund’s overall portfolio volatility and reduce the downside exposure of the Fund during significant market downturns. “Volatility” in this context is a statistical measurement of the frequency and level of changes in the Fund’s returns without regard to the direction of those changes. Volatility may result from rapid and dramatic price swings of securities held directly or indirectly by the Fund. Parameterization and implementation of the volatility forecasting model may be adjusted based upon changes in market conditions. Milliman uses a proprietary model to monitor and forecast volatility and will adjust the level of exchange-traded futures or options contracts on that basis. Futures or options contracts can be purchased or sold by the Fund for less than their contract value, allowing an efficient use of Fund assets for the risk management strategy. The risk management strategy is separate and distinct from any riders or features of your insurance contract. Milliman selects individual futures or options contracts on indices of domestic and foreign markets that it believes are highly correlated to the Fund’s investment exposure. Milliman primarily will buy or sell (short) futures or options contracts on these indices to decrease the Fund’s aggregate economic exposure (from both Underlying Funds and exchange-traded futures or options) based upon Milliman’s evaluation of market volatility and downside market risk. Short futures contracts increase in value as domestic and/or foreign markets decline. Milliman will seek to hedge currency risks involved in the foreign futures contracts primarily through the use of exchange-traded currency futures contracts. Interest rate futures also may be used in an effort to control the volatility of the Fund’s returns and to synthetically earn a yield premium on the Fund’s cash holdings. Even in periods of low volatility in the markets, Milliman will continue to use the hedging techniques designed to preserve gains in favorable market conditions and reduce losses in adverse market conditions. The Fund’s investment in exchange-traded futures or options and their resulting costs could limit the upside participation of the Fund in strong, appreciating markets relative to unhedged funds. In situations of extreme market volatility, the short positions held in exchange-traded futures or options could potentially reduce the Fund’s net economic exposure to domestic and foreign securities to a substantial degree.
Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block]	The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in domestic equity securities (stocks) and/or domestic fixed income securities (bonds).
Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block]	BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. A smaller allocation is made to Underlying ETFs that invest primarily in domestic fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.
Rule 35d-1 Eighty Percent Investment Policy [Text Block]	The Fund, under normal circumstances, through the Underlying ETFs, invests at least 80% of its assets in a portfolio of investments that provides exposure to U.S. securities.

Investment Strategy

Dec. 31, 2025

<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;">Principal Investment Strategies</span>

The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in equity securities (stocks) and/or fixed income securities (bonds). The Underlying ETF strategy is sub-advised by BlackRock Investment Management, LLC (“BlackRock”). The Underlying ETFs are managed by BlackRock Fund Advisors.The Fund also seeks to stabilize its overall portfolio volatility and reduce downside exposure with a risk management strategy. This is a type of risk management sometimes referred to as an “overlay” because the risk management portion of the portfolio supplements the Fund’s main investment portfolio. Underlying ETF Allocation Strategy. Under normal circumstances, approximately 70% of the Fund’s Underlying ETF assets are invested primarily in equity securities (stocks) and approximately 30% of the Fund’s Underlying ETF assets are invested primarily in fixed income securities (bonds). BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic and foreign equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. The foreign equity securities held by the Underlying ETFs may include companies in emerging markets. The Fund normally maintains investment exposure to at least three countries outside of the U.S. Typically, the Fund invests in a larger number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. A smaller allocation is made to Underlying ETFs that invest primarily in domestic and foreign fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.The financial instruments that are intended to provide exposure similar to the exposure to the Underlying ETFs may include, among other instruments, futures, options, swaps, structured notes and other derivatives. On at least an annual basis, BlackRock will reassess and may make revisions in the Fund’s asset allocation strategy consistent with the Fund’s investment strategy and objective, including revising the weightings among the investments described above and adding or removing Underlying ETFs from the asset allocation strategy. The Adviser will also periodically rebalance the weightings in the Underlying ETFs to the current asset allocation strategy. In general, the adviser does not anticipate making frequent changes in the asset allocation strategy and will not attempt to time the market. The Adviser uses various analytical tools and third-party research to construct the portfolio. The Underlying ETF selection is made based on the Fund’s particular asset allocation strategy, the Adviser’s desired asset class exposures, and the investment styles and performance of the Underlying ETFs. The Adviser also considers the portfolio characteristics and risk profile for each Underlying ETF over various periods and market environments to assess each Underlying ETF’s suitability as an investment for the Fund. The full list of Underlying Funds used by the Fund is included in the Fund’s annual and semi-annual reports and quarterly holdings disclosures.Risk Management Strategy. Milliman Financial Risk Management LLC (“Milliman” or “overlay manager”) implements the Fund’s risk management strategy. Although up to 20% of the Fund’s assets may be used to implement the risk management strategy, under normal market conditions, it is expected that less than 10% of the Fund’s net assets will be used for the strategy. Milliman uses a proprietary volatility forecasting model to manage the assets allocated to this strategy. As part of the risk management strategy, Milliman will invest the portion of Fund assets not invested in Underlying Funds in exchange-traded futures or options contracts, cash collateral to support these contracts and/or high-quality short-term money market investments. Milliman also may use interest rate futures as part of the risk management strategy. The risk management strategy consists of using hedging instruments (short or long positions in exchange-traded futures or options contracts) to stabilize the Fund’s overall portfolio volatility and reduce the downside exposure of the Fund during significant market downturns. “Volatility” in this context is a statistical measurement of the frequency and level of changes in the Fund’s returns without regard to the direction of those changes. Volatility may result from rapid and dramatic price swings of securities held directly or indirectly by the Fund. Parameterization and implementation of the volatility forecasting model may be adjusted based upon changes in market conditions. Milliman uses a proprietary model to monitor and forecast volatility and will adjust the level of exchange-traded futures or options contracts on that basis. Futures or options contracts can be purchased or sold by the Fund for less than their contract value, allowing an efficient use of Fund assets for the risk management strategy. The risk management strategy is separate and distinct from any riders or features of your insurance contract. Milliman selects individual futures or options contracts on indices of domestic and foreign markets that it believes are highly correlated to the Fund’s investment exposure. Milliman primarily will buy or sell (short) futures or options contracts on these indices to decrease the Fund’s aggregate economic exposure (from both Underlying Funds and exchange-traded futures or options) based upon Milliman’s evaluation of market volatility and downside market risk. Short futures contracts increase in value as domestic and/or foreign markets decline. Milliman will seek to hedge currency risks involved in the foreign futures contracts primarily through the use of exchange-traded currency futures contracts. Interest rate futures also may be used in an effort to control the volatility of the Fund’s returns and to synthetically earn a yield premium on the Fund’s cash holdings. Even in periods of low volatility in the markets, Milliman will continue to use the hedging techniques designed to preserve gains in favorable market conditions and reduce losses in adverse market conditions. The Fund’s investment in exchange-traded futures or options and their resulting costs could limit the upside participation of the Fund in strong, appreciating markets relative to unhedged funds. In situations of extreme market volatility, the short positions held in exchange-traded futures or options could potentially reduce the Fund’s net economic exposure to domestic and foreign securities to a substantial degree.

Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block]

Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block]

BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic and foreign equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. The foreign equity securities held by the Underlying ETFs may include companies in emerging markets. The Fund normally maintains investment exposure to at least three countries outside of the U.S. Typically, the Fund invests in a larger number of different countries. The Fund is not required to allocate its investments in any set percentages in any particular countries. A smaller allocation is made to Underlying ETFs that invest primarily in domestic and foreign fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.

LVIP BlackRock US Growth ETF Allocation Managed Risk Fund

Prospectus [Line Items]

Strategy [Heading]

<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;">Principal Investment Strategies</span>

Strategy Narrative [Text Block]

The Fund operates under a “fund of funds” structure. The Fund, under normal circumstances, invests substantially all of its assets in iShares exchange-traded funds (“Underlying ETFs”) or financial instruments that provide exposure to such Underlying ETFs. The Underlying ETFs, in turn, invest in domestic equity securities (stocks) and/or domestic fixed income securities (bonds).The Fund, under normal circumstances, through the Underlying ETFs, invests at least 80% of its assets in a portfolio of investments that provides exposure to U.S. securities. The Underlying ETF strategy is sub-advised by BlackRock Investment Management, LLC (“BlackRock”). The Underlying ETFs are managed by BlackRock Fund Advisors. The Fund also seeks to stabilize its overall portfolio volatility and reduce downside exposure with a risk management strategy. This is a type of risk management sometimes referred to as an “overlay” because the risk management portion of the portfolio supplements the Fund’s main investment portfolio. Underlying ETF Allocation Strategy. Under normal circumstances, approximately 70% of the Fund’s Underlying ETF assets are invested primarily in domestic equity securities (stocks) and approximately 30% of the Fund’s Underlying ETF assets are invested primarily in domestic fixed income securities (bonds). BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. A smaller allocation is made to Underlying ETFs that invest primarily in domestic fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.The financial instruments that are intended to provide exposure similar to the exposure to the Underlying ETFs may include, among other instruments, futures, options, swaps, structured notes and other derivatives. As a result of the Fund’s use of futures, options, swaps, structured notes and other derivatives, the Fund may also hold U.S. Treasury, short-term, or other fixed income investments, including loans and notes to address regulatory requirements. On at least an annual basis, BlackRock will reassess and may make revisions in the Fund’s asset allocation strategy consistent with the Fund’s investment strategy and objective, including revising the weightings among the investments described above and adding or removing Underlying ETFs from the asset allocation strategy. The Adviser also will periodically rebalance the weightings in the Underlying ETFs to the current asset allocation strategy. In general, the Adviser does not anticipate making frequent changes in the asset allocation strategy and will not attempt to time the market. The Adviser uses various analytical tools and third-party research to construct the portfolio. The Underlying ETF selection is made based on the Fund’s particular asset allocation strategy, the Adviser’s desired asset class exposures, and the investment styles and performance of the Underlying ETFs. The Adviser also considers the portfolio characteristics and risk profile for each Underlying ETF over various periods and market environments to assess each Underlying ETF’s suitability as an investment for the Fund. The full list of Underlying Funds used by the Fund is included in the Fund’s annual and semi-annual reports and quarterly holdings disclosures.Risk Management Strategy. Milliman Financial Risk Management LLC (“Milliman” or “overlay manager”) implements the Fund’s risk management strategy. Although up to 20% of the Fund’s assets may be used to implement the risk management strategy, under normal market conditions, it is expected that less than 10% of the Fund’s net assets will be used for the strategy. Milliman uses a proprietary volatility forecasting model to manage the assets allocated to this strategy. As part of the risk management strategy, Milliman will invest the portion of Fund assets not invested in Underlying Funds in exchange-traded futures or options contracts, cash collateral to support these contracts and/or high-quality short-term money market investments. Milliman also may use interest rate futures as part of the risk management strategy. The risk management strategy consists of using hedging instruments (short or long positions in exchange-traded futures or options contracts) to stabilize the Fund’s overall portfolio volatility and reduce the downside exposure of the Fund during significant market downturns. “Volatility” in this context is a statistical measurement of the frequency and level of changes in the Fund’s returns without regard to the direction of those changes. Volatility may result from rapid and dramatic price swings of securities held directly or indirectly by the Fund. Parameterization and implementation of the volatility forecasting model may be adjusted based upon changes in market conditions. Milliman uses a proprietary model to monitor and forecast volatility and will adjust the level of exchange-traded futures or options contracts on that basis. Futures or options contracts can be purchased or sold by the Fund for less than their contract value, allowing an efficient use of Fund assets for the risk management strategy. The risk management strategy is separate and distinct from any riders or features of your insurance contract. Milliman selects individual futures or options contracts on indices of domestic and foreign markets that it believes are highly correlated to the Fund’s investment exposure. Milliman primarily will buy or sell (short) futures or options contracts on these indices to decrease the Fund’s aggregate economic exposure (from both Underlying Funds and exchange-traded futures or options) based upon Milliman’s evaluation of market volatility and downside market risk. Short futures contracts increase in value as domestic and/or foreign markets decline. Milliman will seek to hedge currency risks involved in the foreign futures contracts primarily through the use of exchange-traded currency futures contracts. Interest rate futures also may be used in an effort to control the volatility of the Fund’s returns and to synthetically earn a yield premium on the Fund’s cash holdings. Even in periods of low volatility in the markets, Milliman will continue to use the hedging techniques designed to preserve gains in favorable market conditions and reduce losses in adverse market conditions. The Fund’s investment in exchange-traded futures or options and their resulting costs could limit the upside participation of the Fund in strong, appreciating markets relative to unhedged funds. In situations of extreme market volatility, the short positions held in exchange-traded futures or options could potentially reduce the Fund’s net economic exposure to domestic and foreign securities to a substantial degree.

Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block]

Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block]

BlackRock develops the Fund’s asset allocation strategy based on the Fund’s investment objective. The Fund allocates a substantial portion of its assets in Underlying Funds employing a passive investment style (i.e., index funds) or a multi-factor style. The Fund’s largest allocation is to Underlying ETFs that invest primarily in domestic equity securities, including securities of small- and medium-capitalization companies and those with growth and value characteristics. Small-capitalization companies generally include companies with market capitalizations similar to those within the Russell 2000® Index or a similar broad-based index, and medium-capitalization companies generally include companies with market capitalizations similar to those within the Russell MidCap® Index or a similar broad-based index. A smaller allocation is made to Underlying ETFs that invest primarily in domestic fixed income securities, including mortgage-backed securities, high yield securities (otherwise known as “junk” bonds), and securities backed by the U.S. Treasury.

Rule 35d-1 Eighty Percent Investment Policy [Text Block]

The Fund, under normal circumstances, through the Underlying ETFs, invests at least 80% of its assets in a portfolio of investments that provides exposure to U.S. securities.