| Form N-CSR Cover | 12 Months Ended |
| Dec. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Variable Series Funds, Inc. |
| Entity Central Index Key | 0000355916 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Dec. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Dec. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Variable Series Funds, Inc. |
| Entity Central Index Key | 0000355916 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Dec. 31, 2024 |
| C000141138 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock 60/40 Target Allocation ETF V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | BVDAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock 60/40 Target Allocation ETF V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $20 Footnote Reference (a) 0.19% Footnote Reference (a) Footnote Description Footnote (a) Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| Expenses Paid, Amount | $ 20 |
| Expense Ratio, Percent | 0.19% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 11.64%. For the same period, the MSCI All Country World Index returned 17.49% and the secondary performance benchmark, a blend of 60% MSCI ACWI Index and 40% Bloomberg U.S. Aggregate Bond Index, returned 10.77%. What contributed to performance? Allocations to U.S. large-cap stocks, U.S. large-cap growth stocks, U.S. quality factor stocks, and U.S. technology stocks made the largest contributions. All four categories performed well in an environment of robust economic growth, steady corporate earnings, and interest rate cuts by the U.S. Federal Reserve. What detracted from performance? Allocations to long-duration U.S. Treasuries and a total return bond strategy detracted (duration is a measure of interest rate sensitivity). Positioning in developed-market growth stocks and emerging-market equities also detracted due to unfavorably timed shifts in the Fund’s weightings in these areas over the course of the period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.64 % 7.14 % 6.74 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.49 10.06 9.23 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.77 6.06 6.25 Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.25 (0.33 ) 1.35 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 601,656,154 |
| Holdings Count | Holding | 17 |
| Advisory Fees Paid, Amount | $ 765,709 |
| InvestmentCompanyPortfolioTurnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $601,656,154 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $765,709 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 50% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Affiliated Investment Companies Equity Funds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 44.6 % Fixed-Income Funds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.4 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 30.0 |
| C000141139 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock 60/40 Target Allocation ETF V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | BDAVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock 60/40 Target Allocation ETF V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $47 Footnote Reference (a) 0.44% Footnote Reference (a) Footnote Description Footnote (a) Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.44% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 11.36%. For the same period, the MSCI All Country World Index returned 17.49% and the secondary performance benchmark, a blend of 60% MSCI ACWI Index and 40% Bloomberg U.S. Aggregate Bond Index, returned 10.77%. What contributed to performance? Allocations to U.S. large-cap stocks, U.S. large-cap growth stocks, U.S. quality factor stocks, and U.S. technology stocks made the largest contributions. All four categories performed well in an environment of robust economic growth, steady corporate earnings, and interest rate cuts by the U.S. Federal Reserve. What detracted from performance? Allocations to long-duration U.S. Treasuries and a total return bond strategy detracted (duration is a measure of interest rate sensitivity). Positioning in developed-market growth stocks and emerging-market equities also detracted due to unfavorably timed shifts in the Fund’s weightings in these areas over the course of the period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.36 % 6.86 % 6.48 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.49 10.06 9.23 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.77 6.06 6.25 Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.25 (0.33 ) 1.35 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 601,656,154 |
| Holdings Count | Holding | 17 |
| Advisory Fees Paid, Amount | $ 765,709 |
| InvestmentCompanyPortfolioTurnover | 50% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $601,656,154 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $765,709 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 50% |
| Holdings [Text Block] | Portfolio composition Investment Type Percent of Affiliated Investment Companies Equity Funds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 44.6 % Fixed-Income Funds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.4 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 30.0 |
| C000007905 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage Large Cap Core V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | LGCCI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage Large Cap Core V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $75 0.66% |
| Expenses Paid, Amount | $ 75 |
| Expense Ratio, Percent | 0.66% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 25.44%. For the same period, the Russell 1000 ® What contributed to performance? The Fund delivered strong performance during the reporting period, driven primarily by sentiment- and macro-related insights. Tracking social media activity helped correctly position the portfolio in the consumer discretionary sector, contributing to absolute performance. Furthermore, measures that gather sentiment from informed investor positioning worked well in healthcare. Positioning in the sector was also driven by a macro-related insight favoring companies likely to benefit from growing demand for GLP-1 treatments. Macro-related insights that assess industry-level positioning, which led to holdings in information technology stocks that benefited from enthusiasm about artificial intelligence, further helped results. What detracted from performance? Given the Fund’s strong performance, there were no major detractors from absolute returns. However, certain fundamental measures struggled. Traditional valuation measures looking at company cash flow levels incorrectly positioned the portfolio in metals and mining companies that posted negative returns. Additionally, quality insights with a preference for more stable companies lagged due to the “risk-off” tone in the market. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 1000 ® Jan 15 $9,504 $9,725 Feb 15 $10,168 $10,287 Mar 15 $10,021 $10,159 Apr 15 $10,033 $10,231 May 15 $10,231 $10,365 Jun 15 $10,072 $10,171 Jul 15 $10,306 $10,367 Aug 15 $9,692 $9,743 Sep 15 $9,396 $9,476 Oct 15 $10,182 $10,243 Nov 15 $10,185 $10,277 Dec 15 $10,052 $10,092 Jan 16 $9,370 $9,549 Feb 16 $9,255 $9,545 Mar 16 $9,885 $10,210 Apr 16 $9,824 $10,266 May 16 $9,991 $10,446 Jun 16 $9,853 $10,469 Jul 16 $10,247 $10,868 Aug 16 $10,354 $10,882 Sep 16 $10,367 $10,891 Oct 16 $10,254 $10,679 Nov 16 $10,878 $11,100 Dec 16 $11,112 $11,308 Jan 17 $11,356 $11,536 Feb 17 $11,882 $11,982 Mar 17 $11,851 $11,990 Apr 17 $12,063 $12,116 May 17 $12,133 $12,271 Jun 17 $12,182 $12,357 Jul 17 $12,417 $12,601 Aug 17 $12,503 $12,641 Sep 17 $12,833 $12,910 Oct 17 $13,106 $13,206 Nov 17 $13,482 $13,609 Dec 17 $13,594 $13,761 Jan 18 $14,492 $14,516 Feb 18 $14,038 $13,983 Mar 18 $13,785 $13,666 Apr 18 $13,752 $13,712 May 18 $14,048 $14,062 Jun 18 $14,091 $14,153 Jul 18 $14,558 $14,642 Aug 18 $15,089 $15,146 Sep 18 $15,119 $15,204 Oct 18 $13,944 $14,128 Nov 18 $14,163 $14,415 Dec 18 $12,884 $13,102 Jan 19 $14,008 $14,200 Feb 19 $14,506 $14,681 Mar 19 $14,675 $14,937 Apr 19 $15,274 $15,540 May 19 $14,415 $14,550 Jun 19 $15,257 $15,571 Jul 19 $15,423 $15,813 Aug 19 $15,089 $15,523 Sep 19 $15,310 $15,792 Oct 19 $15,615 $16,127 Nov 19 $16,180 $16,736 Dec 19 $16,611 $17,220 Jan 20 $16,707 $17,238 Feb 20 $15,329 $15,830 Mar 20 $13,328 $13,738 Apr 20 $15,124 $15,553 May 20 $15,879 $16,374 Jun 20 $16,242 $16,736 Jul 20 $17,119 $17,716 Aug 20 $18,444 $19,016 Sep 20 $17,720 $18,321 Oct 20 $17,138 $17,879 Nov 20 $19,131 $19,985 Dec 20 $19,899 $20,830 Jan 21 $19,719 $20,658 Feb 21 $20,358 $21,257 Mar 21 $21,177 $22,061 Apr 21 $22,322 $23,249 May 21 $22,555 $23,359 Jun 21 $23,074 $23,944 Jul 21 $23,673 $24,442 Aug 21 $24,227 $25,149 Sep 21 $23,057 $23,994 Oct 21 $24,604 $25,659 Nov 21 $24,501 $25,315 Dec 21 $25,559 $26,340 Jan 22 $24,110 $24,855 Feb 22 $23,265 $24,173 Mar 22 $24,001 $24,989 Apr 22 $21,925 $22,761 May 22 $21,901 $22,727 Jun 22 $20,041 $20,823 Jul 22 $21,686 $22,763 Aug 22 $20,802 $21,889 Sep 22 $18,948 $19,863 Oct 22 $20,556 $21,456 Nov 22 $21,674 $22,617 Dec 22 $20,450 $21,302 Jan 23 $21,753 $22,730 Feb 23 $21,269 $22,189 Mar 23 $21,902 $22,891 Apr 23 $22,051 $23,175 May 23 $22,051 $23,283 Jun 23 $23,627 $24,855 Jul 23 $24,332 $25,710 Aug 23 $23,972 $25,260 Sep 23 $22,867 $24,073 Oct 23 $22,383 $23,491 Nov 23 $24,493 $25,685 Dec 23 $25,609 $26,953 Jan 24 $26,034 $27,329 Feb 24 $27,310 $28,805 Mar 24 $28,561 $29,728 Apr 24 $27,360 $28,463 May 24 $28,786 $29,804 Jun 24 $29,825 $30,790 Jul 24 $30,221 $31,238 Aug 24 $30,947 $31,979 Sep 24 $31,548 $32,663 Oct 24 $31,222 $32,434 Nov 24 $33,049 $34,522 Dec 24 $32,124 $33,560 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.44 % 14.10 % 12.38 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 198,705,729 |
| Holdings Count | Holding | 192 |
| Advisory Fees Paid, Amount | $ 959,292 |
| InvestmentCompanyPortfolioTurnover | 114% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $198,705,729 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 192 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $959,292 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 114% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 30.9 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.2 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.4 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.0 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007906 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage Large Cap Core V.I. Fund |
| Class Name | Class II Shares |
| Trading Symbol | LGCII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage Large Cap Core V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II Shares $94 0.83% |
| Expenses Paid, Amount | $ 94 |
| Expense Ratio, Percent | 0.83% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class II Shares returned 25.28%. For the same period, the Russell 1000 ® What contributed to performance? The Fund delivered strong performance during the reporting period, driven primarily by sentiment- and macro-related insights. Tracking social media activity helped correctly position the portfolio in the consumer discretionary sector, contributing to absolute performance. Furthermore, measures that gather sentiment from informed investor positioning worked well in healthcare. Positioning in the sector was also driven by a macro-related insight favoring companies likely to benefit from growing demand for GLP-1 treatments. Macro-related insights that assess industry-level positioning, which led to holdings in information technology stocks that benefited from enthusiasm about artificial intelligence, further helped results. What detracted from performance? Given the Fund’s strong performance, there were no major detractors from absolute returns. However, certain fundamental measures struggled. Traditional valuation measures looking at company cash flow levels incorrectly positioned the portfolio in metals and mining companies that posted negative returns. Additionally, quality insights with a preference for more stable companies lagged due to the “risk-off” tone in the market. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class II Shares Russell 1000 ® Jan 15 $9,501 $9,725 Feb 15 $10,165 $10,287 Mar 15 $10,018 $10,159 Apr 15 $10,027 $10,231 May 15 $10,225 $10,365 Jun 15 $10,063 $10,171 Jul 15 $10,294 $10,367 Aug 15 $9,680 $9,743 Sep 15 $9,384 $9,476 Oct 15 $10,166 $10,243 Nov 15 $10,169 $10,277 Dec 15 $10,034 $10,092 Jan 16 $9,353 $9,549 Feb 16 $9,239 $9,545 Mar 16 $9,864 $10,210 Apr 16 $9,801 $10,266 May 16 $9,967 $10,446 Jun 16 $9,829 $10,469 Jul 16 $10,222 $10,868 Aug 16 $10,326 $10,882 Sep 16 $10,335 $10,891 Oct 16 $10,222 $10,679 Nov 16 $10,842 $11,100 Dec 16 $11,078 $11,308 Jan 17 $11,317 $11,536 Feb 17 $11,837 $11,982 Mar 17 $11,806 $11,990 Apr 17 $12,018 $12,116 May 17 $12,084 $12,271 Jun 17 $12,129 $12,357 Jul 17 $12,364 $12,601 Aug 17 $12,445 $12,641 Sep 17 $12,774 $12,910 Oct 17 $13,042 $13,206 Nov 17 $13,417 $13,609 Dec 17 $13,523 $13,761 Jan 18 $14,416 $14,516 Feb 18 $13,965 $13,983 Mar 18 $13,709 $13,666 Apr 18 $13,675 $13,712 May 18 $13,970 $14,062 Jun 18 $14,008 $14,153 Jul 18 $14,472 $14,642 Aug 18 $14,996 $15,146 Sep 18 $15,025 $15,204 Oct 18 $13,857 $14,128 Nov 18 $14,070 $14,415 Dec 18 $12,798 $13,102 Jan 19 $13,913 $14,200 Feb 19 $14,407 $14,681 Mar 19 $14,569 $14,937 Apr 19 $15,163 $15,540 May 19 $14,306 $14,550 Jun 19 $15,141 $15,571 Jul 19 $15,305 $15,813 Aug 19 $14,969 $15,523 Sep 19 $15,187 $15,792 Oct 19 $15,484 $16,127 Nov 19 $16,045 $16,736 Dec 19 $16,466 $17,220 Jan 20 $16,562 $17,238 Feb 20 $15,197 $15,830 Mar 20 $13,210 $13,738 Apr 20 $14,988 $15,553 May 20 $15,736 $16,374 Jun 20 $16,095 $16,736 Jul 20 $16,958 $17,716 Aug 20 $18,270 $19,016 Sep 20 $17,547 $18,321 Oct 20 $16,970 $17,879 Nov 20 $18,944 $19,985 Dec 20 $19,704 $20,830 Jan 21 $19,519 $20,658 Feb 21 $20,144 $21,257 Mar 21 $20,953 $22,061 Apr 21 $22,085 $23,249 May 21 $22,309 $23,359 Jun 21 $22,822 $23,944 Jul 21 $23,407 $24,442 Aug 21 $23,955 $25,149 Sep 21 $22,798 $23,994 Oct 21 $24,320 $25,659 Nov 21 $24,218 $25,315 Dec 21 $25,260 $26,340 Jan 22 $23,821 $24,855 Feb 22 $22,977 $24,173 Mar 22 $23,702 $24,989 Apr 22 $21,657 $22,761 May 22 $21,621 $22,727 Jun 22 $19,790 $20,823 Jul 22 $21,422 $22,763 Aug 22 $20,527 $21,889 Sep 22 $18,700 $19,863 Oct 22 $20,285 $21,456 Nov 22 $21,385 $22,617 Dec 22 $20,165 $21,302 Jan 23 $21,458 $22,730 Feb 23 $20,970 $22,189 Mar 23 $21,605 $22,891 Apr 23 $21,751 $23,175 May 23 $21,739 $23,283 Jun 23 $23,288 $24,855 Jul 23 $23,982 $25,710 Aug 23 $23,628 $25,260 Sep 23 $22,542 $24,073 Oct 23 $22,054 $23,491 Nov 23 $24,128 $25,685 Dec 23 $25,212 $26,953 Jan 24 $25,642 $27,329 Feb 24 $26,894 $28,805 Mar 24 $28,122 $29,728 Apr 24 $26,931 $28,463 May 24 $28,331 $29,804 Jun 24 $29,350 $30,790 Jul 24 $29,739 $31,238 Aug 24 $30,452 $31,979 Sep 24 $31,029 $32,663 Oct 24 $30,710 $32,434 Nov 24 $32,503 $34,522 Dec 24 $31,585 $33,560 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class II Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.28 % 13.91 % 12.19 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 198,705,729 |
| Holdings Count | Holding | 192 |
| Advisory Fees Paid, Amount | $ 959,292 |
| InvestmentCompanyPortfolioTurnover | 114% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $198,705,729 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 192 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $959,292 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 114% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 30.9 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.2 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.4 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.0 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007907 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage Large Cap Core V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | LCIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage Large Cap Core V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $106 0.94% |
| Expenses Paid, Amount | $ 106 |
| Expense Ratio, Percent | 0.94% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 25.11%. For the same period, the Russell 1000 ® What contributed to performance? The Fund delivered strong performance during the reporting period, driven primarily by sentiment- and macro-related insights. Tracking social media activity helped correctly position the portfolio in the consumer discretionary sector, contributing to absolute performance. Furthermore, measures that gather sentiment from informed investor positioning worked well in healthcare. Positioning in the sector was also driven by a macro-related insight favoring companies likely to benefit from growing demand for GLP-1 treatments. Macro-related insights that assess industry-level positioning, which led to holdings in information technology stocks that benefited from enthusiasm about artificial intelligence, further helped results. What detracted from performance? Given the Fund’s strong performance, there were no major detractors from absolute returns. However, certain fundamental measures struggled. Traditional valuation measures looking at company cash flow levels incorrectly positioned the portfolio in metals and mining companies that posted negative returns. Additionally, quality insights with a preference for more stable companies lagged due to the “risk-off” tone in the market. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 1000 ® Jan 15 $9,499 $9,725 Feb 15 $10,163 $10,287 Mar 15 $10,015 $10,159 Apr 15 $10,024 $10,231 May 15 $10,220 $10,365 Jun 15 $10,057 $10,171 Jul 15 $10,287 $10,367 Aug 15 $9,672 $9,743 Sep 15 $9,378 $9,476 Oct 15 $10,155 $10,243 Nov 15 $10,158 $10,277 Dec 15 $10,023 $10,092 Jan 16 $9,340 $9,549 Feb 16 $9,225 $9,545 Mar 16 $9,850 $10,210 Apr 16 $9,786 $10,266 May 16 $9,949 $10,446 Jun 16 $9,812 $10,469 Jul 16 $10,203 $10,868 Aug 16 $10,304 $10,882 Sep 16 $10,313 $10,891 Oct 16 $10,200 $10,679 Nov 16 $10,816 $11,100 Dec 16 $11,052 $11,308 Jan 17 $11,288 $11,536 Feb 17 $11,807 $11,982 Mar 17 $11,776 $11,990 Apr 17 $11,985 $12,116 May 17 $12,051 $12,271 Jun 17 $12,096 $12,357 Jul 17 $12,329 $12,601 Aug 17 $12,407 $12,641 Sep 17 $12,733 $12,910 Oct 17 $13,000 $13,206 Nov 17 $13,372 $13,609 Dec 17 $13,479 $13,761 Jan 18 $14,367 $14,516 Feb 18 $13,914 $13,983 Mar 18 $13,661 $13,666 Apr 18 $13,627 $13,712 May 18 $13,914 $14,062 Jun 18 $13,952 $14,153 Jul 18 $14,414 $14,642 Aug 18 $14,935 $15,146 Sep 18 $14,960 $15,204 Oct 18 $13,795 $14,128 Nov 18 $14,009 $14,415 Dec 18 $12,737 $13,102 Jan 19 $13,847 $14,200 Feb 19 $14,337 $14,681 Mar 19 $14,501 $14,937 Apr 19 $15,087 $15,540 May 19 $14,236 $14,550 Jun 19 $15,064 $15,571 Jul 19 $15,223 $15,813 Aug 19 $14,891 $15,523 Sep 19 $15,105 $15,792 Oct 19 $15,404 $16,127 Nov 19 $15,956 $16,736 Dec 19 $16,374 $17,220 Jan 20 $16,470 $17,238 Feb 20 $15,111 $15,830 Mar 20 $13,132 $13,738 Apr 20 $14,894 $15,553 May 20 $15,640 $16,374 Jun 20 $15,995 $16,736 Jul 20 $16,850 $17,716 Aug 20 $18,156 $19,016 Sep 20 $17,436 $18,321 Oct 20 $16,856 $17,879 Nov 20 $18,815 $19,985 Dec 20 $19,566 $20,830 Jan 21 $19,388 $20,658 Feb 21 $20,003 $21,257 Mar 21 $20,803 $22,061 Apr 21 $21,928 $23,249 May 21 $22,153 $23,359 Jun 21 $22,655 $23,944 Jul 21 $23,237 $24,442 Aug 21 $23,774 $25,149 Sep 21 $22,625 $23,994 Oct 21 $24,135 $25,659 Nov 21 $24,033 $25,315 Dec 21 $25,057 $26,340 Jan 22 $23,632 $24,855 Feb 22 $22,803 $24,173 Mar 22 $23,522 $24,989 Apr 22 $21,489 $22,761 May 22 $21,456 $22,727 Jun 22 $19,633 $20,823 Jul 22 $21,248 $22,763 Aug 22 $20,361 $21,889 Sep 22 $18,543 $19,863 Oct 22 $20,115 $21,456 Nov 22 $21,203 $22,617 Dec 22 $20,007 $21,302 Jan 23 $21,285 $22,730 Feb 23 $20,798 $22,189 Mar 23 $21,420 $22,891 Apr 23 $21,567 $23,175 May 23 $21,556 $23,283 Jun 23 $23,083 $24,855 Jul 23 $23,771 $25,710 Aug 23 $23,420 $25,260 Sep 23 $22,334 $24,073 Oct 23 $21,859 $23,491 Nov 23 $23,907 $25,685 Dec 23 $24,988 $26,953 Jan 24 $25,409 $27,329 Feb 24 $26,648 $28,805 Mar 24 $27,864 $29,728 Apr 24 $26,682 $28,463 May 24 $28,057 $29,804 Jun 24 $29,069 $30,790 Jul 24 $29,452 $31,238 Aug 24 $30,157 $31,979 Sep 24 $30,726 $32,663 Oct 24 $30,407 $32,434 Nov 24 $32,181 $34,522 Dec 24 $31,263 $33,560 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.11 % 13.81 % 12.07 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 198,705,729 |
| Holdings Count | Holding | 192 |
| Advisory Fees Paid, Amount | $ 959,292 |
| InvestmentCompanyPortfolioTurnover | 114% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $198,705,729 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 192 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $959,292 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 114% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 30.9 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.3 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.2 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.4 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.0 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007911 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage Large Cap Value V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | LCATT |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage Large Cap Value V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $65 0.60% |
| Expenses Paid, Amount | $ 65 |
| Expense Ratio, Percent | 0.60% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 16.32%. For the same period, Russell 1000 ® ® What contributed to performance? The Fund delivered strong performance during the reporting period, driven primarily by sentiment- and macro-related insights. Insights that gather sentiment from informed investor positioning worked well in the information technology sector. Further, measures focused on social media likes helped correctly position the portfolio in the consumer discretionary sector. Macro thematic insights focusing on industry-level activity in the private markets were additive by driving successful positioning in industrials. Performance was further bolstered by macro-related insights favoring companies likely to benefit from growing demand for GLP-1 treatments. In addition, fundamental quality measures using text-based predictions for growth led to a successful positioning in financials. What detracted from performance? Given the Fund’s strong performance, there were no major detractors from absolute returns. However, certain fundamental quality and valuation measures struggled. Traditional valuation measures looking at company cash flow levels incorrectly positioned the portfolio in the materials sector. Fundamental quality measures that compare stocks using balance sheet metrics also detracted by motivating positions in chemical stocks that experienced losses. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,427 $9,725 $9,600 Feb 15 $10,055 $10,287 $10,065 Mar 15 $9,898 $10,159 $9,928 Apr 15 $9,961 $10,231 $10,021 May 15 $10,157 $10,365 $10,141 Jun 15 $10,016 $10,171 $9,939 Jul 15 $10,153 $10,367 $9,982 Aug 15 $9,572 $9,743 $9,388 Sep 15 $9,286 $9,476 $9,104 Oct 15 $9,970 $10,243 $9,791 Nov 15 $9,994 $10,277 $9,829 Dec 15 $9,828 $10,092 $9,617 Jan 16 $9,109 $9,549 $9,120 Feb 16 $9,041 $9,545 $9,118 Mar 16 $9,665 $10,210 $9,775 Apr 16 $9,742 $10,266 $9,980 May 16 $9,870 $10,446 $10,135 Jun 16 $9,776 $10,469 $10,223 Jul 16 $10,076 $10,868 $10,520 Aug 16 $10,222 $10,882 $10,601 Sep 16 $10,231 $10,891 $10,579 Oct 16 $10,145 $10,679 $10,415 Nov 16 $10,919 $11,100 $11,010 Dec 16 $11,164 $11,308 $11,285 Jan 17 $11,303 $11,536 $11,365 Feb 17 $11,812 $11,982 $11,774 Mar 17 $11,655 $11,990 $11,654 Apr 17 $11,738 $12,116 $11,632 May 17 $11,701 $12,271 $11,621 Jun 17 $11,849 $12,357 $11,811 Jul 17 $12,031 $12,601 $11,967 Aug 17 $12,003 $12,641 $11,828 Sep 17 $12,448 $12,910 $12,178 Oct 17 $12,542 $13,206 $12,267 Nov 17 $12,921 $13,609 $12,642 Dec 17 $13,087 $13,761 $12,827 Jan 18 $13,678 $14,516 $13,323 Feb 18 $13,062 $13,983 $12,687 Mar 18 $12,927 $13,666 $12,464 Apr 18 $12,939 $13,712 $12,505 May 18 $12,976 $14,062 $12,579 Jun 18 $13,001 $14,153 $12,610 Jul 18 $13,495 $14,642 $13,109 Aug 18 $13,744 $15,146 $13,303 Sep 18 $13,781 $15,204 $13,329 Oct 18 $12,935 $14,128 $12,639 Nov 18 $13,258 $14,415 $13,016 Dec 18 $12,013 $13,102 $11,767 Jan 19 $12,957 $14,200 $12,682 Feb 19 $13,415 $14,681 $13,088 Mar 19 $13,429 $14,937 $13,171 Apr 19 $13,915 $15,540 $13,638 May 19 $13,129 $14,550 $12,761 Jun 19 $13,915 $15,571 $13,677 Jul 19 $14,020 $15,813 $13,791 Aug 19 $13,605 $15,523 $13,385 Sep 19 $14,020 $15,792 $13,863 Oct 19 $14,177 $16,127 $14,056 Nov 19 $14,649 $16,736 $14,491 Dec 19 $15,004 $17,220 $14,890 Jan 20 $14,699 $17,238 $14,569 Feb 20 $13,254 $15,830 $13,158 Mar 20 $11,154 $13,738 $10,910 Apr 20 $12,463 $15,553 $12,136 May 20 $12,843 $16,374 $12,552 Jun 20 $12,797 $16,736 $12,469 Jul 20 $13,249 $17,716 $12,962 Aug 20 $13,897 $19,016 $13,497 Sep 20 $13,480 $18,321 $13,166 Oct 20 $13,187 $17,879 $12,993 Nov 20 $15,022 $19,985 $14,741 Dec 20 $15,553 $20,830 $15,306 Jan 21 $15,365 $20,658 $15,166 Feb 21 $16,288 $21,257 $16,082 Mar 21 $17,258 $22,061 $17,028 Apr 21 $17,994 $23,249 $17,709 May 21 $18,479 $23,359 $18,123 Jun 21 $18,244 $23,944 $17,915 Jul 21 $18,576 $24,442 $18,059 Aug 21 $18,874 $25,149 $18,417 Sep 21 $18,121 $23,994 $17,776 Oct 21 $18,984 $25,659 $18,678 Nov 21 $18,514 $25,315 $18,020 Dec 21 $19,678 $26,340 $19,157 Jan 22 $19,112 $24,855 $18,711 Feb 22 $18,753 $24,173 $18,493 Mar 22 $19,281 $24,989 $19,015 Apr 22 $18,300 $22,761 $17,943 May 22 $18,640 $22,727 $18,292 Jun 22 $16,999 $20,823 $16,694 Jul 22 $18,000 $22,763 $17,801 Aug 22 $17,424 $21,889 $17,270 Sep 22 $16,003 $19,863 $15,756 Oct 22 $17,732 $21,456 $17,371 Nov 22 $18,788 $22,617 $18,457 Dec 22 $18,072 $21,302 $17,713 Jan 23 $18,977 $22,730 $18,631 Feb 23 $18,407 $22,189 $17,974 Mar 23 $18,387 $22,891 $17,891 Apr 23 $18,525 $23,175 $18,161 May 23 $17,797 $23,283 $17,460 Jun 23 $19,016 $24,855 $18,620 Jul 23 $19,656 $25,710 $19,275 Aug 23 $19,300 $25,260 $18,754 Sep 23 $18,629 $24,073 $18,031 Oct 23 $18,076 $23,491 $17,395 Nov 23 $19,537 $25,685 $18,707 Dec 23 $20,549 $26,953 $19,743 Jan 24 $20,715 $27,329 $19,764 Feb 24 $21,337 $28,805 $20,493 Mar 24 $22,645 $29,728 $21,517 Apr 24 $21,649 $28,463 $20,598 May 24 $22,396 $29,804 $21,251 Jun 24 $22,417 $30,790 $21,051 Jul 24 $23,489 $31,238 $22,127 Aug 24 $24,159 $31,979 $22,721 Sep 24 $24,453 $32,663 $23,036 Oct 24 $24,138 $32,434 $22,783 Nov 24 $25,605 $34,522 $24,238 Dec 24 $23,903 $33,560 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.32 % 9.76 % 9.11 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 100,510,867 |
| Holdings Count | Holding | 230 |
| Advisory Fees Paid, Amount | $ 463,689 |
| InvestmentCompanyPortfolioTurnover | 128% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $100,510,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 230 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $463,689 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 128% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.3 % Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.5 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.3 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.7 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.0 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.2 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.9 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.9 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007913 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage Large Cap Value V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | LVIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage Large Cap Value V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $92 0.85% |
| Expenses Paid, Amount | $ 92 |
| Expense Ratio, Percent | 0.85% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 16.13%. For the same period, Russell 1000 ® ® What contributed to performance? The Fund delivered strong performance during the reporting period, driven primarily by sentiment- and macro-related insights. Insights that gather sentiment from informed investor positioning worked well in the information technology sector. Further, measures focused on social media likes helped correctly position the portfolio in the consumer discretionary sector. Macro thematic insights focusing on industry-level activity in the private markets were additive by driving successful positioning in industrials. Performance was further bolstered by macro-related insights favoring companies likely to benefit from growing demand for GLP-1 treatments. In addition, fundamental quality measures using text-based predictions for growth led to a successful positioning in financials. What detracted from performance? Given the Fund’s strong performance, there were no major detractors from absolute returns. However, certain fundamental quality and valuation measures struggled. Traditional valuation measures looking at company cash flow levels incorrectly positioned the portfolio in the materials sector. Fundamental quality measures that compare stocks using balance sheet metrics also detracted by motivating positions in chemical stocks that experienced losses. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,421 $9,725 $9,600 Feb 15 $10,048 $10,287 $10,065 Mar 15 $9,889 $10,159 $9,928 Apr 15 $9,952 $10,231 $10,021 May 15 $10,143 $10,365 $10,141 Jun 15 $9,992 $10,171 $9,939 Jul 15 $10,131 $10,367 $9,982 Aug 15 $9,552 $9,743 $9,388 Sep 15 $9,263 $9,476 $9,104 Oct 15 $9,938 $10,243 $9,791 Nov 15 $9,962 $10,277 $9,829 Dec 15 $9,789 $10,092 $9,617 Jan 16 $9,075 $9,549 $9,120 Feb 16 $8,997 $9,545 $9,118 Mar 16 $9,617 $10,210 $9,775 Apr 16 $9,694 $10,266 $9,980 May 16 $9,815 $10,446 $10,135 Jun 16 $9,720 $10,469 $10,223 Jul 16 $10,022 $10,868 $10,520 Aug 16 $10,161 $10,882 $10,601 Sep 16 $10,169 $10,891 $10,579 Oct 16 $10,083 $10,679 $10,415 Nov 16 $10,836 $11,100 $11,010 Dec 16 $11,079 $11,308 $11,285 Jan 17 $11,218 $11,536 $11,365 Feb 17 $11,720 $11,982 $11,774 Mar 17 $11,562 $11,990 $11,654 Apr 17 $11,646 $12,116 $11,632 May 17 $11,599 $12,271 $11,621 Jun 17 $11,739 $12,357 $11,811 Jul 17 $11,921 $12,601 $11,967 Aug 17 $11,883 $12,641 $11,828 Sep 17 $12,321 $12,910 $12,178 Oct 17 $12,416 $13,206 $12,267 Nov 17 $12,787 $13,609 $12,642 Dec 17 $12,947 $13,761 $12,827 Jan 18 $13,528 $14,516 $13,323 Feb 18 $12,909 $13,983 $12,687 Mar 18 $12,773 $13,666 $12,464 Apr 18 $12,786 $13,712 $12,505 May 18 $12,823 $14,062 $12,579 Jun 18 $12,835 $14,153 $12,610 Jul 18 $13,332 $14,642 $13,109 Aug 18 $13,570 $15,146 $13,303 Sep 18 $13,607 $15,204 $13,329 Oct 18 $12,769 $14,128 $12,639 Nov 18 $13,094 $14,415 $13,016 Dec 18 $11,851 $13,102 $11,767 Jan 19 $12,786 $14,200 $12,682 Feb 19 $13,232 $14,681 $13,088 Mar 19 $13,246 $14,937 $13,171 Apr 19 $13,721 $15,540 $13,638 May 19 $12,944 $14,550 $12,761 Jun 19 $13,721 $15,571 $13,677 Jul 19 $13,812 $15,813 $13,791 Aug 19 $13,409 $15,523 $13,385 Sep 19 $13,812 $15,792 $13,863 Oct 19 $13,955 $16,127 $14,056 Nov 19 $14,416 $16,736 $14,491 Dec 19 $14,766 $17,220 $14,890 Jan 20 $14,461 $17,238 $14,569 Feb 20 $13,054 $15,830 $13,158 Mar 20 $10,975 $13,738 $10,910 Apr 20 $12,244 $15,553 $12,136 May 20 $12,626 $16,374 $12,552 Jun 20 $12,580 $16,736 $12,469 Jul 20 $13,018 $17,716 $12,962 Aug 20 $13,654 $19,016 $13,497 Sep 20 $13,235 $18,321 $13,166 Oct 20 $12,956 $17,879 $12,993 Nov 20 $14,754 $19,985 $14,741 Dec 20 $15,272 $20,830 $15,306 Jan 21 $15,084 $20,658 $15,166 Feb 21 $15,994 $21,257 $16,082 Mar 21 $16,936 $22,061 $17,028 Apr 21 $17,658 $23,249 $17,709 May 21 $18,128 $23,359 $18,123 Jun 21 $17,877 $23,944 $17,915 Jul 21 $18,211 $24,442 $18,059 Aug 21 $18,494 $25,149 $18,417 Sep 21 $17,754 $23,994 $17,776 Oct 21 $18,604 $25,659 $18,678 Nov 21 $18,132 $25,315 $18,020 Dec 21 $19,276 $26,340 $19,157 Jan 22 $18,707 $24,855 $18,711 Feb 22 $18,346 $24,173 $18,493 Mar 22 $18,877 $24,989 $19,015 Apr 22 $17,910 $22,761 $17,943 May 22 $18,232 $22,727 $18,292 Jun 22 $16,639 $20,823 $16,694 Jul 22 $17,608 $22,763 $17,801 Aug 22 $17,028 $21,889 $17,270 Sep 22 $15,637 $19,863 $15,756 Oct 22 $17,318 $21,456 $17,371 Nov 22 $18,362 $22,617 $18,457 Dec 22 $17,655 $21,302 $17,713 Jan 23 $18,544 $22,730 $18,631 Feb 23 $17,971 $22,189 $17,974 Mar 23 $17,951 $22,891 $17,891 Apr 23 $18,070 $23,175 $18,161 May 23 $17,379 $23,283 $17,460 Jun 23 $18,564 $24,855 $18,620 Jul 23 $19,166 $25,710 $19,275 Aug 23 $18,829 $25,260 $18,754 Sep 23 $18,174 $24,073 $18,031 Oct 23 $17,619 $23,491 $17,395 Nov 23 $19,028 $25,685 $18,707 Dec 23 $20,016 $26,953 $19,743 Jan 24 $20,182 $27,329 $19,764 Feb 24 $20,786 $28,805 $20,493 Mar 24 $22,036 $29,728 $21,517 Apr 24 $21,078 $28,463 $20,598 May 24 $21,807 $29,804 $21,251 Jun 24 $21,807 $30,790 $21,051 Jul 24 $22,841 $31,238 $22,127 Aug 24 $23,514 $31,979 $22,721 Sep 24 $23,787 $32,663 $23,036 Oct 24 $23,472 $32,434 $22,783 Nov 24 $24,902 $34,522 $24,238 Dec 24 $23,243 $33,560 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.13 % 9.50 % 8.80 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 100,510,867 |
| Holdings Count | Holding | 230 |
| Advisory Fees Paid, Amount | $ 463,689 |
| InvestmentCompanyPortfolioTurnover | 128% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $100,510,867 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 230 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $463,689 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 128% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.3 % Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.5 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.3 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.7 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.0 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.2 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.9 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (2.9 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007914 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage SMID Cap V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | SMCPI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage SMID Cap V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $58 0.55% |
| Expenses Paid, Amount | $ 58 |
| Expense Ratio, Percent | 0.55% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 12.05%. For the same period, the Russell 3000 ® TM What contributed to performance? The Fund delivered strong performance during the reporting period, driven by sentiment insights. The returns of the Fund’s macro and fundamental insights were more muted. Insights gauging sentiment from earnings calls and broker reports were additive, leading to successful positioning in the information technology sector. Additionally, social media engagement measures motivated favorable positioning in the consumer discretionary sector. Fundamental quality measures, which favor companies with founders in management roles, contributed in the financials and industrials sectors. What detracted from performance? Certain fundamental quality- and valuation-related measures experienced negative absolute returns. Traditional valuation measures looking at various balance sheet ratios detracted in the materials sector. In addition, fundamental quality measures favoring companies with longer debt maturities detracted in energy due to the higher interest rate environment that persisted for most of the year. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 3000 ® Russell 2500™ Index Jan 15 $9,544 $9,722 $9,795 Feb 15 $10,048 $10,285 $10,379 Mar 15 $10,245 $10,180 $10,517 Apr 15 $10,145 $10,226 $10,333 May 15 $10,256 $10,368 $10,554 Jun 15 $10,263 $10,194 $10,481 Jul 15 $10,072 $10,365 $10,461 Aug 15 $9,626 $9,739 $9,842 Sep 15 $9,101 $9,455 $9,402 Oct 15 $9,660 $10,202 $9,927 Nov 15 $9,811 $10,258 $10,122 Dec 15 $9,339 $10,048 $9,710 Jan 16 $8,540 $9,481 $8,936 Feb 16 $8,708 $9,478 $8,998 Mar 16 $9,432 $10,145 $9,748 Apr 16 $9,568 $10,208 $9,892 May 16 $9,665 $10,391 $10,100 Jun 16 $9,769 $10,412 $10,096 Jul 16 $10,235 $10,825 $10,623 Aug 16 $10,549 $10,853 $10,708 Sep 16 $10,541 $10,870 $10,759 Oct 16 $10,043 $10,635 $10,322 Nov 16 $11,337 $11,111 $11,200 Dec 16 $11,548 $11,327 $11,418 Jan 17 $11,507 $11,541 $11,576 Feb 17 $11,672 $11,970 $11,855 Mar 17 $11,565 $11,978 $11,847 Apr 17 $11,639 $12,105 $11,938 May 17 $11,507 $12,229 $11,805 Jun 17 $11,718 $12,339 $12,100 Jul 17 $11,949 $12,572 $12,225 Aug 17 $12,059 $12,596 $12,123 Sep 17 $12,387 $12,903 $12,673 Oct 17 $12,667 $13,185 $12,870 Nov 17 $13,067 $13,585 $13,292 Dec 17 $13,171 $13,721 $13,337 Jan 18 $13,813 $14,444 $13,744 Feb 18 $13,315 $13,912 $13,179 Mar 18 $13,079 $13,633 $13,305 Apr 18 $13,048 $13,684 $13,337 May 18 $13,443 $14,071 $13,964 Jun 18 $13,495 $14,163 $14,065 Jul 18 $13,928 $14,633 $14,337 Aug 18 $14,452 $15,147 $14,952 Sep 18 $14,457 $15,172 $14,725 Oct 18 $13,306 $14,055 $13,230 Nov 18 $13,523 $14,336 $13,480 Dec 18 $12,329 $13,002 $12,003 Jan 19 $13,451 $14,118 $13,385 Feb 19 $13,930 $14,614 $14,017 Mar 19 $14,017 $14,828 $13,902 Apr 19 $14,619 $15,420 $14,389 May 19 $13,784 $14,422 $13,365 Jun 19 $14,613 $15,435 $14,313 Jul 19 $14,779 $15,664 $14,462 Aug 19 $14,423 $15,345 $13,884 Sep 19 $14,616 $15,614 $14,130 Oct 19 $14,931 $15,950 $14,400 Nov 19 $15,492 $16,557 $15,018 Dec 19 $15,902 $17,035 $15,336 Jan 20 $15,973 $17,016 $15,025 Feb 20 $14,670 $15,623 $13,765 Mar 20 $12,677 $13,475 $10,778 Apr 20 $14,386 $15,259 $12,346 May 20 $15,109 $16,075 $13,258 Jun 20 $15,502 $16,443 $13,641 Jul 20 $16,284 $17,376 $14,184 Aug 20 $17,544 $18,635 $14,827 Sep 20 $16,839 $17,957 $14,443 Oct 20 $16,376 $17,569 $14,705 Nov 20 $18,308 $19,707 $17,100 Dec 20 $19,077 $20,593 $18,402 Jan 21 $18,966 $20,501 $18,853 Feb 21 $19,757 $21,142 $20,083 Mar 21 $20,083 $21,900 $20,413 Apr 21 $21,082 $23,029 $21,229 May 21 $21,061 $23,134 $21,273 Jun 21 $21,297 $23,705 $21,524 Jul 21 $21,229 $24,105 $21,147 Aug 21 $21,577 $24,793 $21,627 Sep 21 $20,747 $23,681 $20,947 Oct 21 $21,932 $25,282 $21,974 Nov 21 $20,881 $24,897 $21,057 Dec 21 $21,678 $25,877 $21,748 Jan 22 $19,967 $24,355 $19,938 Feb 22 $20,165 $23,741 $20,162 Mar 22 $20,333 $24,512 $20,483 Apr 22 $18,632 $22,312 $18,738 May 22 $18,850 $22,282 $18,801 Jun 22 $17,030 $20,418 $17,005 Jul 22 $18,709 $22,333 $18,764 Aug 22 $18,211 $21,500 $18,265 Sep 22 $16,645 $19,506 $16,526 Oct 22 $18,270 $21,106 $18,111 Nov 22 $19,078 $22,208 $18,876 Dec 22 $18,107 $20,907 $17,753 Jan 23 $19,839 $22,347 $19,528 Feb 23 $19,426 $21,825 $19,070 Mar 23 $18,812 $22,408 $18,355 Apr 23 $18,550 $22,647 $18,115 May 23 $17,946 $22,735 $17,798 Jun 23 $19,617 $24,288 $19,314 Jul 23 $20,499 $25,158 $20,274 Aug 23 $19,864 $24,673 $19,478 Sep 23 $18,897 $23,497 $18,390 Oct 23 $17,739 $22,875 $17,273 Nov 23 $19,371 $25,008 $18,828 Dec 23 $21,526 $26,334 $20,846 Jan 24 $21,079 $26,626 $20,301 Feb 24 $22,024 $28,067 $21,405 Mar 24 $23,091 $28,973 $22,289 Apr 24 $21,648 $27,698 $20,795 May 24 $22,522 $29,006 $21,661 Jun 24 $22,095 $29,904 $21,336 Jul 24 $23,674 $30,460 $22,921 Aug 24 $23,542 $31,123 $22,862 Sep 24 $23,928 $31,767 $23,203 Oct 24 $23,542 $31,534 $22,987 Nov 24 $25,952 $33,632 $25,250 Dec 24 $24,121 $32,604 $23,347 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.05 % 8.69 % 9.20 % Russell 3000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.81 13.86 12.55 Russell 2500™ Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.00 8.77 8.85 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 161,731,284 |
| Holdings Count | Holding | 486 |
| Advisory Fees Paid, Amount | $ 682,369 |
| InvestmentCompanyPortfolioTurnover | 115% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $161,731,284 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 486 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $682,369 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 115% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.0 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.6 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (8.9 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007916 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Advantage SMID Cap V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | SCIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Advantage SMID Cap V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $85 0.80% |
| Expenses Paid, Amount | $ 85 |
| Expense Ratio, Percent | 0.80% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 11.70%. For the same period, the Russell 3000 ® TM What contributed to performance? The Fund delivered strong performance during the reporting period, driven by sentiment insights. The returns of the Fund’s macro and fundamental insights were more muted. Insights gauging sentiment from earnings calls and broker reports were additive, leading to successful positioning in the information technology sector. Additionally, social media engagement measures motivated favorable positioning in the consumer discretionary sector. Fundamental quality measures, which favor companies with founders in management roles, contributed in the financials and industrials sectors. What detracted from performance? Certain fundamental quality- and valuation-related measures experienced negative absolute returns. Traditional valuation measures looking at various balance sheet ratios detracted in the materials sector. In addition, fundamental quality measures favoring companies with longer debt maturities detracted in energy due to the higher interest rate environment that persisted for most of the year. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 3000 ® Russell 2500™ Index Jan 15 $9,540 $9,722 $9,795 Feb 15 $10,041 $10,285 $10,379 Mar 15 $10,239 $10,180 $10,517 Apr 15 $10,133 $10,226 $10,333 May 15 $10,248 $10,368 $10,554 Jun 15 $10,253 $10,194 $10,481 Jul 15 $10,061 $10,365 $10,461 Aug 15 $9,609 $9,739 $9,842 Sep 15 $9,087 $9,455 $9,402 Oct 15 $9,642 $10,202 $9,927 Nov 15 $9,793 $10,258 $10,122 Dec 15 $9,322 $10,048 $9,710 Jan 16 $8,525 $9,481 $8,936 Feb 16 $8,687 $9,478 $8,998 Mar 16 $9,408 $10,145 $9,748 Apr 16 $9,546 $10,208 $9,892 May 16 $9,637 $10,391 $10,100 Jun 16 $9,744 $10,412 $10,096 Jul 16 $10,206 $10,825 $10,623 Aug 16 $10,515 $10,853 $10,708 Sep 16 $10,505 $10,870 $10,759 Oct 16 $10,008 $10,635 $10,322 Nov 16 $11,297 $11,111 $11,200 Dec 16 $11,504 $11,327 $11,418 Jan 17 $11,462 $11,541 $11,576 Feb 17 $11,625 $11,970 $11,855 Mar 17 $11,515 $11,978 $11,847 Apr 17 $11,583 $12,105 $11,938 May 17 $11,457 $12,229 $11,805 Jun 17 $11,662 $12,339 $12,100 Jul 17 $11,887 $12,572 $12,225 Aug 17 $11,996 $12,596 $12,123 Sep 17 $12,323 $12,903 $12,673 Oct 17 $12,595 $13,185 $12,870 Nov 17 $12,993 $13,585 $13,292 Dec 17 $13,095 $13,721 $13,337 Jan 18 $13,731 $14,444 $13,744 Feb 18 $13,235 $13,912 $13,179 Mar 18 $12,998 $13,633 $13,305 Apr 18 $12,963 $13,684 $13,337 May 18 $13,347 $14,071 $13,964 Jun 18 $13,396 $14,163 $14,065 Jul 18 $13,824 $14,633 $14,337 Aug 18 $14,341 $15,147 $14,952 Sep 18 $14,348 $15,172 $14,725 Oct 18 $13,201 $14,055 $13,230 Nov 18 $13,414 $14,336 $13,480 Dec 18 $12,224 $13,002 $12,003 Jan 19 $13,333 $14,118 $13,385 Feb 19 $13,808 $14,614 $14,017 Mar 19 $13,892 $14,828 $13,902 Apr 19 $14,484 $15,420 $14,389 May 19 $13,650 $14,422 $13,365 Jun 19 $14,476 $15,435 $14,313 Jul 19 $14,638 $15,664 $14,462 Aug 19 $14,279 $15,345 $13,884 Sep 19 $14,471 $15,614 $14,130 Oct 19 $14,780 $15,950 $14,400 Nov 19 $15,330 $16,557 $15,018 Dec 19 $15,726 $17,035 $15,336 Jan 20 $15,804 $17,016 $15,025 Feb 20 $14,503 $15,623 $13,765 Mar 20 $12,529 $13,475 $10,778 Apr 20 $14,215 $15,259 $12,346 May 20 $14,927 $16,075 $13,258 Jun 20 $15,312 $16,443 $13,641 Jul 20 $16,085 $17,376 $14,184 Aug 20 $17,330 $18,635 $14,827 Sep 20 $16,624 $17,957 $14,443 Oct 20 $16,163 $17,569 $14,705 Nov 20 $18,066 $19,707 $17,100 Dec 20 $18,818 $20,593 $18,402 Jan 21 $18,710 $20,501 $18,853 Feb 21 $19,484 $21,142 $20,083 Mar 21 $19,807 $21,900 $20,413 Apr 21 $20,785 $23,029 $21,229 May 21 $20,764 $23,134 $21,273 Jun 21 $20,990 $23,705 $21,524 Jul 21 $20,916 $24,105 $21,147 Aug 21 $21,251 $24,793 $21,627 Sep 21 $20,437 $23,681 $20,947 Oct 21 $21,596 $25,282 $21,974 Nov 21 $20,560 $24,897 $21,057 Dec 21 $21,329 $25,877 $21,748 Jan 22 $19,655 $24,355 $19,938 Feb 22 $19,836 $23,741 $20,162 Mar 22 $19,998 $24,512 $20,483 Apr 22 $18,323 $22,312 $18,738 May 22 $18,525 $22,282 $18,801 Jun 22 $16,749 $20,418 $17,005 Jul 22 $18,379 $22,333 $18,764 Aug 22 $17,907 $21,500 $18,265 Sep 22 $16,346 $19,506 $16,526 Oct 22 $17,948 $21,106 $18,111 Nov 22 $18,728 $22,208 $18,876 Dec 22 $17,772 $20,907 $17,753 Jan 23 $19,466 $22,347 $19,528 Feb 23 $19,068 $21,825 $19,070 Mar 23 $18,462 $22,408 $18,355 Apr 23 $18,190 $22,647 $18,115 May 23 $17,605 $22,735 $17,798 Jun 23 $19,236 $24,288 $19,314 Jul 23 $20,105 $25,158 $20,274 Aug 23 $19,477 $24,673 $19,478 Sep 23 $18,515 $23,497 $18,390 Oct 23 $17,385 $22,875 $17,273 Nov 23 $18,975 $25,008 $18,828 Dec 23 $21,083 $26,334 $20,846 Jan 24 $20,636 $26,626 $20,301 Feb 24 $21,573 $28,067 $21,405 Mar 24 $22,595 $28,973 $22,289 Apr 24 $21,190 $27,698 $20,795 May 24 $22,042 $29,006 $21,661 Jun 24 $21,616 $29,904 $21,336 Jul 24 $23,156 $30,460 $22,921 Aug 24 $23,007 $31,123 $22,862 Sep 24 $23,391 $31,767 $23,203 Oct 24 $23,007 $31,534 $22,987 Nov 24 $25,353 $33,632 $25,250 Dec 24 $23,551 $32,604 $23,347 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.70 % 8.41 % 8.94 % Russell 3000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.81 13.86 12.55 Russell 2500™ Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.00 8.77 8.85 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 161,731,284 |
| Holdings Count | Holding | 486 |
| Advisory Fees Paid, Amount | $ 682,369 |
| InvestmentCompanyPortfolioTurnover | 115% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $161,731,284 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 486 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $682,369 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 115% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.0 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.6 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (8.9 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007923 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Basic Value V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | BAVLI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Basic Value V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $76 0.72% |
| Expenses Paid, Amount | $ 76 |
| Expense Ratio, Percent | 0.72% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 10.37%. For the same period, the Russell 1000 ® ® What contributed to performance? Positive contributions to performance over the reporting period were led by investment decisions in the financials, industrials and consumer discretionary sectors. In financials, positioning in banks proved additive, highlighted by exposure to one of the largest U.S.-based multinational banks. In industrials, positioning in professional services was beneficial, most notably holdings of a government defense and intelligence contractor. In consumer discretionary, positioning in the automobiles industry added to return, led by holdings of a leading U.S. car manufacturer. What detracted from performance? The largest detractors from the Fund’s absolute performance were investment decisions in the healthcare, consumer staples and materials sectors. In healthcare, positioning in healthcare providers and services weighed on performance, most notably holdings of a leading drug store chain and pharmacy benefit manager. In consumer staples, positioning in distribution and retail detracted, in particular holdings of a leading low-price retail chain. In materials, positioning in the containers and packaging industry had a negative impact, including holdings of a leading provider of packaging solutions used with the transport of food and goods. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,501 $9,725 $9,600 Feb 15 $10,335 $10,287 $10,065 Mar 15 $10,280 $10,159 $9,928 Apr 15 $10,365 $10,231 $10,021 May 15 $10,475 $10,365 $10,141 Jun 15 $10,323 $10,171 $9,939 Jul 15 $10,347 $10,367 $9,982 Aug 15 $9,611 $9,743 $9,388 Sep 15 $9,109 $9,476 $9,104 Oct 15 $9,783 $10,243 $9,791 Nov 15 $9,697 $10,277 $9,829 Dec 15 $9,405 $10,092 $9,617 Jan 16 $8,807 $9,549 $9,120 Feb 16 $8,708 $9,545 $9,118 Mar 16 $9,489 $10,210 $9,775 Apr 16 $9,834 $10,266 $9,980 May 16 $10,038 $10,446 $10,135 Jun 16 $9,898 $10,469 $10,223 Jul 16 $10,206 $10,868 $10,520 Aug 16 $10,383 $10,882 $10,601 Sep 16 $10,489 $10,891 $10,579 Oct 16 $10,156 $10,679 $10,415 Nov 16 $10,943 $11,100 $11,010 Dec 16 $11,115 $11,308 $11,285 Jan 17 $11,050 $11,536 $11,365 Feb 17 $11,342 $11,982 $11,774 Mar 17 $11,145 $11,990 $11,654 Apr 17 $11,020 $12,116 $11,632 May 17 $10,896 $12,271 $11,621 Jun 17 $11,028 $12,357 $11,811 Jul 17 $11,225 $12,601 $11,967 Aug 17 $11,056 $12,641 $11,828 Sep 17 $11,388 $12,910 $12,178 Oct 17 $11,454 $13,206 $12,267 Nov 17 $11,890 $13,609 $12,642 Dec 17 $12,031 $13,761 $12,827 Jan 18 $12,663 $14,516 $13,323 Feb 18 $12,070 $13,983 $12,687 Mar 18 $11,777 $13,666 $12,464 Apr 18 $11,962 $13,712 $12,505 May 18 $12,023 $14,062 $12,579 Jun 18 $12,062 $14,153 $12,610 Jul 18 $12,607 $14,642 $13,109 Aug 18 $12,881 $15,146 $13,303 Sep 18 $12,881 $15,204 $13,329 Oct 18 $12,186 $14,128 $12,639 Nov 18 $12,264 $14,415 $13,016 Dec 18 $11,087 $13,102 $11,767 Jan 19 $11,937 $14,200 $12,682 Feb 19 $12,295 $14,681 $13,088 Mar 19 $12,331 $14,937 $13,171 Apr 19 $12,823 $15,540 $13,638 May 19 $11,946 $14,550 $12,761 Jun 19 $12,671 $15,571 $13,677 Jul 19 $12,719 $15,813 $13,791 Aug 19 $12,334 $15,523 $13,385 Sep 19 $12,782 $15,792 $13,863 Oct 19 $12,907 $16,127 $14,056 Nov 19 $13,274 $16,736 $14,491 Dec 19 $13,738 $17,220 $14,890 Jan 20 $13,238 $17,238 $14,569 Feb 20 $11,989 $15,830 $13,158 Mar 20 $9,871 $13,738 $10,910 Apr 20 $11,060 $15,553 $12,136 May 20 $11,520 $16,374 $12,552 Jun 20 $11,530 $16,736 $12,469 Jul 20 $11,772 $17,716 $12,962 Aug 20 $12,177 $19,016 $13,497 Sep 20 $11,701 $18,321 $13,166 Oct 20 $11,600 $17,879 $12,993 Nov 20 $13,657 $19,985 $14,741 Dec 20 $14,209 $20,830 $15,306 Jan 21 $14,104 $20,658 $15,166 Feb 21 $14,962 $21,257 $16,082 Mar 21 $15,998 $22,061 $17,028 Apr 21 $16,720 $23,249 $17,709 May 21 $17,149 $23,359 $18,123 Jun 21 $16,731 $23,944 $17,915 Jul 21 $16,762 $24,442 $18,059 Aug 21 $16,900 $25,149 $18,417 Sep 21 $16,463 $23,994 $17,776 Oct 21 $17,135 $25,659 $18,678 Nov 21 $16,260 $25,315 $18,020 Dec 21 $17,289 $26,340 $19,157 Jan 22 $17,400 $24,855 $18,711 Feb 22 $17,585 $24,173 $18,493 Mar 22 $17,635 $24,989 $19,015 Apr 22 $16,819 $22,761 $17,943 May 22 $17,425 $22,727 $18,292 Jun 22 $15,682 $20,823 $16,694 Jul 22 $16,665 $22,763 $17,801 Aug 22 $16,163 $21,889 $17,270 Sep 22 $14,671 $19,863 $15,756 Oct 22 $16,176 $21,456 $17,371 Nov 22 $17,204 $22,617 $18,457 Dec 22 $16,438 $21,302 $17,713 Jan 23 $17,781 $22,730 $18,631 Feb 23 $17,166 $22,189 $17,974 Mar 23 $16,984 $22,891 $17,891 Apr 23 $17,529 $23,175 $18,161 May 23 $16,760 $23,283 $17,460 Jun 23 $18,019 $24,855 $18,620 Jul 23 $18,635 $25,710 $19,275 Aug 23 $17,822 $25,260 $18,754 Sep 23 $17,316 $24,073 $18,031 Oct 23 $16,769 $23,491 $17,395 Nov 23 $18,144 $25,685 $18,707 Dec 23 $19,168 $26,953 $19,743 Jan 24 $19,228 $27,329 $19,764 Feb 24 $19,805 $28,805 $20,493 Mar 24 $20,650 $29,728 $21,517 Apr 24 $20,116 $28,463 $20,598 May 24 $20,724 $29,804 $21,251 Jun 24 $20,353 $30,790 $21,051 Jul 24 $21,459 $31,238 $22,127 Aug 24 $21,711 $31,979 $22,721 Sep 24 $21,651 $32,663 $23,036 Oct 24 $21,444 $32,434 $22,783 Nov 24 $22,466 $34,522 $24,238 Dec 24 $21,157 $33,560 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.37 % 9.02 % 7.78 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 294,949,501 |
| Holdings Count | Holding | 67 |
| Advisory Fees Paid, Amount | $ 1,885,601 |
| InvestmentCompanyPortfolioTurnover | 41% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $294,949,501 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 67 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,885,601 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 41% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.0 % Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.0 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.6 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.6 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (9.4 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007925 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Basic Value V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | BVIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Basic Value V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $106 1.01% |
| Expenses Paid, Amount | $ 106 |
| Expense Ratio, Percent | 1.01% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 10.05%. For the same period, the Russell 1000 ® ® What contributed to performance? Positive contributions to performance over the reporting period were led by investment decisions in the financials, industrials and consumer discretionary sectors. In financials, positioning in banks proved additive, highlighted by exposure to one of the largest U.S.-based multinational banks. In industrials, positioning in professional services was beneficial, most notably holdings of a government defense and intelligence contractor. In consumer discretionary, positioning in the automobiles industry added to return, led by holdings of a leading U.S. car manufacturer. What detracted from performance? The largest detractors from the Fund’s absolute performance were investment decisions in the healthcare, consumer staples and materials sectors. In healthcare, positioning in healthcare providers and services weighed on performance, most notably holdings of a leading drug store chain and pharmacy benefit manager. In consumer staples, positioning in distribution and retail detracted, in particular holdings of a leading low-price retail chain. In materials, positioning in the containers and packaging industry had a negative impact, including holdings of a leading provider of packaging solutions used with the transport of food and goods. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,498 $9,725 $9,600 Feb 15 $10,331 $10,287 $10,065 Mar 15 $10,270 $10,159 $9,928 Apr 15 $10,355 $10,231 $10,021 May 15 $10,466 $10,365 $10,141 Jun 15 $10,306 $10,171 $9,939 Jul 15 $10,330 $10,367 $9,982 Aug 15 $9,597 $9,743 $9,388 Sep 15 $9,091 $9,476 $9,104 Oct 15 $9,763 $10,243 $9,791 Nov 15 $9,671 $10,277 $9,829 Dec 15 $9,385 $10,092 $9,617 Jan 16 $8,777 $9,549 $9,120 Feb 16 $8,679 $9,545 $9,118 Mar 16 $9,456 $10,210 $9,775 Apr 16 $9,802 $10,266 $9,980 May 16 $10,000 $10,446 $10,135 Jun 16 $9,852 $10,469 $10,223 Jul 16 $10,161 $10,868 $10,520 Aug 16 $10,339 $10,882 $10,601 Sep 16 $10,438 $10,891 $10,579 Oct 16 $10,104 $10,679 $10,415 Nov 16 $10,886 $11,100 $11,010 Dec 16 $11,048 $11,308 $11,285 Jan 17 $10,990 $11,536 $11,365 Feb 17 $11,276 $11,982 $11,774 Mar 17 $11,070 $11,990 $11,654 Apr 17 $10,946 $12,116 $11,632 May 17 $10,821 $12,271 $11,621 Jun 17 $10,946 $12,357 $11,811 Jul 17 $11,144 $12,601 $11,967 Aug 17 $10,974 $12,641 $11,828 Sep 17 $11,307 $12,910 $12,178 Oct 17 $11,366 $13,206 $12,267 Nov 17 $11,796 $13,609 $12,642 Dec 17 $11,934 $13,761 $12,827 Jan 18 $12,558 $14,516 $13,323 Feb 18 $11,965 $13,983 $12,687 Mar 18 $11,672 $13,666 $12,464 Apr 18 $11,857 $13,712 $12,505 May 18 $11,911 $14,062 $12,579 Jun 18 $11,941 $14,153 $12,610 Jul 18 $12,487 $14,642 $13,109 Aug 18 $12,752 $15,146 $13,303 Sep 18 $12,744 $15,204 $13,329 Oct 18 $12,057 $14,128 $12,639 Nov 18 $12,135 $14,415 $13,016 Dec 18 $10,965 $13,102 $11,767 Jan 19 $11,804 $14,200 $12,682 Feb 19 $12,152 $14,681 $13,088 Mar 19 $12,188 $14,937 $13,171 Apr 19 $12,669 $15,540 $13,638 May 19 $11,795 $14,550 $12,761 Jun 19 $12,518 $15,571 $13,677 Jul 19 $12,566 $15,813 $13,791 Aug 19 $12,173 $15,523 $13,385 Sep 19 $12,610 $15,792 $13,863 Oct 19 $12,735 $16,127 $14,056 Nov 19 $13,092 $16,736 $14,491 Dec 19 $13,546 $17,220 $14,890 Jan 20 $13,058 $17,238 $14,569 Feb 20 $11,815 $15,830 $13,158 Mar 20 $9,727 $13,738 $10,910 Apr 20 $10,890 $15,553 $12,136 May 20 $11,348 $16,374 $12,552 Jun 20 $11,358 $16,736 $12,469 Jul 20 $11,589 $17,716 $12,962 Aug 20 $11,982 $19,016 $13,497 Sep 20 $11,518 $18,321 $13,166 Oct 20 $11,407 $17,879 $12,993 Nov 20 $13,435 $19,985 $14,741 Dec 20 $13,970 $20,830 $15,306 Jan 21 $13,866 $20,658 $15,166 Feb 21 $14,706 $21,257 $16,082 Mar 21 $15,713 $22,061 $17,028 Apr 21 $16,429 $23,249 $17,709 May 21 $16,855 $23,359 $18,123 Jun 21 $16,429 $23,944 $17,915 Jul 21 $16,460 $24,442 $18,059 Aug 21 $16,587 $25,149 $18,417 Sep 21 $16,153 $23,994 $17,776 Oct 21 $16,810 $25,659 $18,678 Nov 21 $15,952 $25,315 $18,020 Dec 21 $16,950 $26,340 $19,157 Jan 22 $17,061 $24,855 $18,711 Feb 22 $17,244 $24,173 $18,493 Mar 22 $17,281 $24,989 $19,015 Apr 22 $16,485 $22,761 $17,943 May 22 $17,073 $22,727 $18,292 Jun 22 $15,357 $20,823 $16,694 Jul 22 $16,319 $22,763 $17,801 Aug 22 $15,822 $21,889 $17,270 Sep 22 $14,354 $19,863 $15,756 Oct 22 $15,822 $21,456 $17,371 Nov 22 $16,829 $22,617 $18,457 Dec 22 $16,082 $21,302 $17,713 Jan 23 $17,384 $22,730 $18,631 Feb 23 $16,774 $22,189 $17,974 Mar 23 $16,594 $22,891 $17,891 Apr 23 $17,121 $23,175 $18,161 May 23 $16,373 $23,283 $17,460 Jun 23 $17,592 $24,855 $18,620 Jul 23 $18,202 $25,710 $19,275 Aug 23 $17,396 $25,260 $18,754 Sep 23 $16,896 $24,073 $18,031 Oct 23 $16,354 $23,491 $17,395 Nov 23 $17,702 $25,685 $18,707 Dec 23 $18,693 $26,953 $19,743 Jan 24 $18,752 $27,329 $19,764 Feb 24 $19,308 $28,805 $20,493 Mar 24 $20,128 $29,728 $21,517 Apr 24 $19,586 $28,463 $20,598 May 24 $20,187 $29,804 $21,251 Jun 24 $19,821 $30,790 $21,051 Jul 24 $20,884 $31,238 $22,127 Aug 24 $21,118 $31,979 $22,721 Sep 24 $21,074 $32,663 $23,036 Oct 24 $20,869 $32,434 $22,783 Nov 24 $21,865 $34,522 $24,238 Dec 24 $20,573 $33,560 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.05 % 8.72 % 7.48 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 294,949,501 |
| Holdings Count | Holding | 67 |
| Advisory Fees Paid, Amount | $ 1,885,601 |
| InvestmentCompanyPortfolioTurnover | 41% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $294,949,501 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 67 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,885,601 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 41% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.0 % Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.0 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.6 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.6 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.9 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.8 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (9.4 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007932 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Capital Appreciation V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | FDGRI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Capital Appreciation V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $83 0.72% |
| Expenses Paid, Amount | $ 83 |
| Expense Ratio, Percent | 0.72% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 32.28%. For the same period, the S&P 500 ® ® What contributed to performance? Positive contributions to the Fund’s performance over the reporting period were led by positioning in the information technology, communication services and consumer discretionary sectors. In information technology, holdings in the semiconductors and semiconductor equipment industry proved beneficial, most notably exposure to a provider of chips used in artificial intelligence applications. In communication services, positioning in interactive media and services was most additive, led by exposure to a social media platform operator. Finally, in consumer discretionary, positioning in the broadline retail industry contributed, most notably holdings of an online retail platform operator. What detracted from performance? The largest detractors from performance over the reporting period were investment decisions in the real estate and energy sectors. In real estate, positioning in the management and development industry detracted, in particular exposure to a provider of real estate industry analytics. In energy, positioning in oil, gas, and consumable fuels weighed on return, most notably holdings of an exporter of liquified natural gas. While no other sector detracted from absolute performance, in information technology services holdings of a developer data platform provider was among the Fund’s largest individual detractors. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares S&P 500 ® Russell 1000 ® Jan 15 $9,833 $9,700 $9,847 Feb 15 $10,500 $10,257 $10,503 Mar 15 $10,400 $10,095 $10,384 Apr 15 $10,511 $10,192 $10,436 May 15 $10,733 $10,323 $10,583 Jun 15 $10,633 $10,123 $10,396 Jul 15 $11,117 $10,335 $10,749 Aug 15 $10,359 $9,712 $10,096 Sep 15 $9,894 $9,471 $9,846 Oct 15 $10,732 $10,270 $10,694 Nov 15 $10,868 $10,301 $10,724 Dec 15 $10,697 $10,138 $10,567 Jan 16 $9,852 $9,635 $9,977 Feb 16 $9,622 $9,622 $9,973 Mar 16 $10,153 $10,275 $10,645 Apr 16 $10,069 $10,315 $10,548 May 16 $10,431 $10,500 $10,753 Jun 16 $10,238 $10,527 $10,711 Jul 16 $10,806 $10,915 $11,216 Aug 16 $10,855 $10,931 $11,160 Sep 16 $11,039 $10,933 $11,201 Oct 16 $10,757 $10,733 $10,938 Nov 16 $10,634 $11,131 $11,176 Dec 16 $10,707 $11,351 $11,314 Jan 17 $11,178 $11,566 $11,696 Feb 17 $11,650 $12,025 $12,182 Mar 17 $11,786 $12,039 $12,322 Apr 17 $12,146 $12,163 $12,604 May 17 $12,493 $12,334 $12,932 Jun 17 $12,580 $12,411 $12,898 Jul 17 $13,125 $12,666 $13,241 Aug 17 $13,238 $12,705 $13,483 Sep 17 $13,264 $12,967 $13,659 Oct 17 $13,907 $13,270 $14,188 Nov 17 $14,185 $13,677 $14,619 Dec 17 $14,264 $13,829 $14,733 Jan 18 $15,752 $14,621 $15,776 Feb 18 $15,432 $14,082 $15,363 Mar 18 $15,084 $13,724 $14,941 Apr 18 $15,432 $13,777 $14,994 May 18 $16,071 $14,108 $15,651 Jun 18 $16,405 $14,195 $15,801 Jul 18 $16,578 $14,724 $16,265 Aug 18 $17,268 $15,203 $17,155 Sep 18 $17,340 $15,290 $17,251 Oct 18 $15,514 $14,245 $15,708 Nov 18 $15,960 $14,535 $15,875 Dec 18 $14,605 $13,223 $14,510 Jan 19 $16,056 $14,282 $15,814 Feb 19 $16,600 $14,741 $16,380 Mar 19 $17,083 $15,027 $16,846 Apr 19 $17,829 $15,636 $17,607 May 19 $16,983 $14,642 $16,495 Jun 19 $18,091 $15,674 $17,628 Jul 19 $18,176 $15,899 $18,026 Aug 19 $18,034 $15,648 $17,888 Sep 19 $17,627 $15,940 $17,890 Oct 19 $17,932 $16,286 $18,394 Nov 19 $18,848 $16,877 $19,210 Dec 19 $19,277 $17,386 $19,790 Jan 20 $19,977 $17,379 $20,232 Feb 20 $18,939 $15,949 $18,854 Mar 20 $16,985 $13,979 $17,000 Apr 20 $19,470 $15,771 $19,515 May 20 $21,038 $16,522 $20,825 Jun 20 $21,883 $16,850 $21,732 Jul 20 $23,076 $17,801 $23,404 Aug 20 $25,121 $19,080 $25,819 Sep 20 $24,366 $18,355 $24,604 Oct 20 $23,636 $17,867 $23,769 Nov 20 $26,435 $19,823 $26,203 Dec 20 $27,356 $20,585 $27,408 Jan 21 $27,303 $20,377 $27,205 Feb 21 $27,435 $20,939 $27,199 Mar 21 $27,515 $21,856 $27,666 Apr 21 $29,576 $23,022 $29,548 May 21 $29,206 $23,183 $29,140 Jun 21 $31,083 $23,724 $30,968 Jul 21 $32,130 $24,288 $31,988 Aug 21 $33,185 $25,026 $33,184 Sep 21 $31,264 $23,863 $31,326 Oct 21 $33,239 $25,534 $34,039 Nov 21 $32,779 $25,357 $34,247 Dec 21 $33,143 $26,494 $34,971 Jan 22 $29,403 $25,123 $31,970 Feb 22 $27,939 $24,371 $30,612 Mar 22 $28,622 $25,276 $31,809 Apr 22 $24,687 $23,071 $27,968 May 22 $24,166 $23,114 $27,318 Jun 22 $22,052 $21,206 $25,154 Jul 22 $24,766 $23,161 $28,173 Aug 22 $22,956 $22,217 $26,861 Sep 22 $20,443 $20,170 $24,249 Oct 22 $21,247 $21,804 $25,667 Nov 22 $22,487 $23,022 $26,836 Dec 22 $20,669 $21,696 $24,782 Jan 23 $22,936 $23,059 $26,847 Feb 23 $22,386 $22,496 $26,528 Mar 23 $24,137 $23,322 $28,342 Apr 23 $24,481 $23,686 $28,621 May 23 $25,785 $23,789 $29,926 Jun 23 $27,639 $25,361 $31,972 Jul 23 $28,395 $26,176 $33,050 Aug 23 $28,395 $25,759 $32,753 Sep 23 $26,575 $24,531 $30,972 Oct 23 $26,232 $24,015 $30,531 Nov 23 $29,528 $26,208 $33,859 Dec 23 $30,798 $27,399 $35,358 Jan 24 $31,994 $27,859 $36,240 Feb 24 $34,349 $29,347 $38,713 Mar 24 $35,001 $30,291 $39,394 Apr 24 $33,298 $29,054 $37,723 May 24 $35,508 $30,494 $39,981 Jun 24 $37,936 $31,589 $42,677 Jul 24 $36,858 $31,973 $41,951 Aug 24 $37,678 $32,749 $42,825 Sep 24 $38,386 $33,448 $44,038 Oct 24 $38,125 $33,145 $43,893 Nov 24 $40,436 $35,090 $46,740 Dec 24 $40,739 $34,254 $47,152 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.28 % 16.14 % 15.08 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.36 18.96 16.78 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 80,113,612 |
| Holdings Count | Holding | 38 |
| Advisory Fees Paid, Amount | $ 527,364 |
| InvestmentCompanyPortfolioTurnover | 26% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $80,113,612 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $527,364 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 26% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.6 % Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.3 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.9 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.8 Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.0 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.6 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.4 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007934 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Capital Appreciation V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | FGIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Capital Appreciation V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $118 1.02% |
| Expenses Paid, Amount | $ 118 |
| Expense Ratio, Percent | 1.02% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 31.93%. For the same period, the S&P 500 ® ® What contributed to performance? Positive contributions to the Fund’s performance over the reporting period were led by positioning in the information technology, communication services and consumer discretionary sectors. In information technology, holdings in the semiconductors and semiconductor equipment industry proved beneficial, most notably exposure to a provider of chips used in artificial intelligence applications. In communication services, positioning in interactive media and services was most additive, led by exposure to a social media platform operator. Finally, in consumer discretionary, positioning in the broadline retail industry contributed, most notably holdings of an online retail platform operator. What detracted from performance? The largest detractors from performance over the reporting period were investment decisions in the real estate and energy sectors. In real estate, positioning in the management and development industry detracted, in particular exposure to a provider of real estate industry analytics. In energy, positioning in oil, gas, and consumable fuels weighed on return, most notably holdings of an exporter of liquified natural gas. While no other sector detracted from absolute performance, in information technology services holdings of a developer data platform provider was among the Fund’s largest individual detractors. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares S&P 500 ® Russell 1000 ® Jan 15 $9,821 $9,700 $9,847 Feb 15 $10,491 $10,257 $10,503 Mar 15 $10,391 $10,095 $10,384 Apr 15 $10,502 $10,192 $10,436 May 15 $10,714 $10,323 $10,583 Jun 15 $10,614 $10,123 $10,396 Jul 15 $11,089 $10,335 $10,749 Aug 15 $10,327 $9,712 $10,096 Sep 15 $9,872 $9,471 $9,846 Oct 15 $10,713 $10,270 $10,694 Nov 15 $10,827 $10,301 $10,724 Dec 15 $10,661 $10,138 $10,567 Jan 16 $9,814 $9,635 $9,977 Feb 16 $9,584 $9,622 $9,973 Mar 16 $10,116 $10,275 $10,645 Apr 16 $10,032 $10,315 $10,548 May 16 $10,383 $10,500 $10,753 Jun 16 $10,189 $10,527 $10,711 Jul 16 $10,746 $10,915 $11,216 Aug 16 $10,796 $10,931 $11,160 Sep 16 $10,980 $10,933 $11,201 Oct 16 $10,697 $10,733 $10,938 Nov 16 $10,574 $11,131 $11,176 Dec 16 $10,647 $11,351 $11,314 Jan 17 $11,119 $11,566 $11,696 Feb 17 $11,580 $12,025 $12,182 Mar 17 $11,716 $12,039 $12,322 Apr 17 $12,065 $12,163 $12,604 May 17 $12,413 $12,334 $12,932 Jun 17 $12,488 $12,411 $12,898 Jul 17 $13,034 $12,666 $13,241 Aug 17 $13,148 $12,705 $13,483 Sep 17 $13,160 $12,967 $13,659 Oct 17 $13,793 $13,270 $14,188 Nov 17 $14,071 $13,677 $14,619 Dec 17 $14,154 $13,829 $14,733 Jan 18 $15,616 $14,621 $15,776 Feb 18 $15,296 $14,082 $15,363 Mar 18 $14,948 $13,724 $14,941 Apr 18 $15,282 $13,777 $14,994 May 18 $15,922 $14,108 $15,651 Jun 18 $16,242 $14,195 $15,801 Jul 18 $16,429 $14,724 $16,265 Aug 18 $17,092 $15,203 $17,155 Sep 18 $17,164 $15,290 $17,251 Oct 18 $15,364 $14,245 $15,708 Nov 18 $15,781 $14,535 $15,875 Dec 18 $14,456 $13,223 $14,510 Jan 19 $15,875 $14,282 $15,814 Feb 19 $16,422 $14,741 $16,380 Mar 19 $16,889 $15,027 $16,846 Apr 19 $17,618 $15,636 $17,607 May 19 $16,767 $14,642 $16,495 Jun 19 $17,862 $15,674 $17,628 Jul 19 $17,948 $15,899 $18,026 Aug 19 $17,804 $15,648 $17,888 Sep 19 $17,415 $15,940 $17,890 Oct 19 $17,681 $16,286 $18,394 Nov 19 $18,603 $16,877 $19,210 Dec 19 $19,016 $17,386 $19,790 Jan 20 $19,699 $17,379 $20,232 Feb 20 $18,675 $15,949 $18,854 Mar 20 $16,749 $13,979 $17,000 Apr 20 $19,187 $15,771 $19,515 May 20 $20,747 $16,522 $20,825 Jun 20 $21,576 $16,850 $21,732 Jul 20 $22,733 $17,801 $23,404 Aug 20 $24,750 $19,080 $25,819 Sep 20 $23,988 $18,355 $24,604 Oct 20 $23,274 $17,867 $23,769 Nov 20 $26,030 $19,823 $26,203 Dec 20 $26,911 $20,585 $27,408 Jan 21 $26,858 $20,377 $27,205 Feb 21 $26,992 $20,939 $27,199 Mar 21 $27,045 $21,856 $27,666 Apr 21 $29,080 $23,022 $29,548 May 21 $28,705 $23,183 $29,140 Jun 21 $30,553 $23,724 $30,968 Jul 21 $31,587 $24,288 $31,988 Aug 21 $32,603 $25,026 $33,184 Sep 21 $30,682 $23,863 $31,326 Oct 21 $32,658 $25,534 $34,039 Nov 21 $32,191 $25,357 $34,247 Dec 21 $32,533 $26,494 $34,971 Jan 22 $28,848 $25,123 $31,970 Feb 22 $27,421 $24,371 $30,612 Mar 22 $28,052 $25,276 $31,809 Apr 22 $24,201 $23,071 $27,968 May 22 $23,703 $23,114 $27,318 Jun 22 $21,611 $21,206 $25,154 Jul 22 $24,282 $23,161 $28,173 Aug 22 $22,501 $22,217 $26,861 Sep 22 $20,001 $20,170 $24,249 Oct 22 $20,823 $21,804 $25,667 Nov 22 $22,022 $23,022 $26,836 Dec 22 $20,232 $21,696 $24,782 Jan 23 $22,445 $23,059 $26,847 Feb 23 $21,918 $22,496 $26,528 Mar 23 $23,604 $23,322 $28,342 Apr 23 $23,920 $23,686 $28,621 May 23 $25,220 $23,789 $29,926 Jun 23 $27,011 $25,361 $31,972 Jul 23 $27,749 $26,176 $33,050 Aug 23 $27,749 $25,759 $32,753 Sep 23 $25,958 $24,531 $30,972 Oct 23 $25,606 $24,015 $30,531 Nov 23 $28,838 $26,208 $33,859 Dec 23 $30,063 $27,399 $35,358 Jan 24 $31,249 $27,859 $36,240 Feb 24 $33,511 $29,347 $38,713 Mar 24 $34,178 $30,291 $39,394 Apr 24 $32,473 $29,054 $37,723 May 24 $34,623 $30,494 $39,981 Jun 24 $36,995 $31,589 $42,677 Jul 24 $35,929 $31,973 $41,951 Aug 24 $36,731 $32,749 $42,825 Sep 24 $37,380 $33,448 $44,038 Oct 24 $37,151 $33,145 $43,893 Nov 24 $39,404 $35,090 $46,740 Dec 24 $39,664 $34,254 $47,152 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 31.93 % 15.84 % 14.77 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.36 18.96 16.78 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 80,113,612 |
| Holdings Count | Holding | 38 |
| Advisory Fees Paid, Amount | $ 527,364 |
| InvestmentCompanyPortfolioTurnover | 26% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $80,113,612 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $527,364 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 26% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.6 % Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.3 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.9 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.8 Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.0 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.6 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.4 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007917 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Equity Dividend V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | UTTLI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Equity Dividend V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $69 0.66% |
| Expenses Paid, Amount | $ 69 |
| Expense Ratio, Percent | 0.66% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 10.06%. For the same period, the S&P 500 ® ® What contributed to performance? Stock selection in the financials, industrials and utilities sectors made the largest contributions to absolute performance. In financials, a position in one of the largest U.S.-based banks was a key contributor. The outperformance in industrials stemmed from an investment in a government defense and intelligence contractor whose stock outperformed. An electric utility expected to benefit from the growth of artificial intelligence led the way in the utilities sector. What detracted from performance? Stock selection in the healthcare, information technology, and materials sectors detracted. In healthcare, weakness in a leading drugstore chain and pharmacy benefit manager hurt results. The shortfall in information technology resulted from a downturn in a large, South Korean consumer electronics company. In materials, a chemical producer that specializes in paints, coatings, and specialty materials was the leading detractor. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares S&P 500 ® Russell 1000 ® Jan 15 $9,560 $9,700 $9,600 Feb 15 $10,073 $10,257 $10,065 Mar 15 $9,899 $10,095 $9,928 Apr 15 $9,989 $10,192 $10,021 May 15 $10,081 $10,323 $10,141 Jun 15 $9,906 $10,123 $9,939 Jul 15 $10,087 $10,335 $9,982 Aug 15 $9,480 $9,712 $9,388 Sep 15 $9,275 $9,471 $9,104 Oct 15 $10,002 $10,270 $9,791 Nov 15 $10,068 $10,301 $9,829 Dec 15 $9,939 $10,138 $9,617 Jan 16 $9,483 $9,635 $9,120 Feb 16 $9,424 $9,622 $9,118 Mar 16 $9,988 $10,275 $9,775 Apr 16 $10,213 $10,315 $9,980 May 16 $10,332 $10,500 $10,135 Jun 16 $10,431 $10,527 $10,223 Jul 16 $10,686 $10,915 $10,520 Aug 16 $10,746 $10,931 $10,601 Sep 16 $10,636 $10,933 $10,579 Oct 16 $10,575 $10,733 $10,415 Nov 16 $11,309 $11,131 $11,010 Dec 16 $11,568 $11,351 $11,285 Jan 17 $11,578 $11,566 $11,365 Feb 17 $11,993 $12,025 $11,774 Mar 17 $11,931 $12,039 $11,654 Apr 17 $12,010 $12,163 $11,632 May 17 $12,104 $12,334 $11,621 Jun 17 $12,302 $12,411 $11,811 Jul 17 $12,510 $12,666 $11,967 Aug 17 $12,394 $12,705 $11,828 Sep 17 $12,815 $12,967 $12,178 Oct 17 $13,035 $13,270 $12,267 Nov 17 $13,384 $13,677 $12,642 Dec 17 $13,504 $13,829 $12,827 Jan 18 $14,183 $14,621 $13,323 Feb 18 $13,482 $14,082 $12,687 Mar 18 $13,148 $13,724 $12,464 Apr 18 $13,398 $13,777 $12,505 May 18 $13,432 $14,108 $12,579 Jun 18 $13,454 $14,195 $12,610 Jul 18 $14,068 $14,724 $13,109 Aug 18 $14,295 $15,203 $13,303 Sep 18 $14,284 $15,290 $13,329 Oct 18 $13,530 $14,245 $12,639 Nov 18 $13,713 $14,535 $13,016 Dec 18 $12,537 $13,223 $11,767 Jan 19 $13,412 $14,282 $12,682 Feb 19 $13,757 $14,741 $13,088 Mar 19 $13,831 $15,027 $13,171 Apr 19 $14,421 $15,636 $13,638 May 19 $13,615 $14,642 $12,761 Jun 19 $14,483 $15,674 $13,677 Jul 19 $14,666 $15,899 $13,791 Aug 19 $14,401 $15,648 $13,385 Sep 19 $14,779 $15,940 $13,863 Oct 19 $15,075 $16,286 $14,056 Nov 19 $15,581 $16,877 $14,491 Dec 19 $16,011 $17,386 $14,890 Jan 20 $15,607 $17,379 $14,569 Feb 20 $14,181 $15,949 $13,158 Mar 20 $12,122 $13,979 $10,910 Apr 20 $13,352 $15,771 $12,136 May 20 $13,839 $16,522 $12,552 Jun 20 $13,812 $16,850 $12,469 Jul 20 $14,214 $17,801 $12,962 Aug 20 $14,584 $19,080 $13,497 Sep 20 $14,186 $18,355 $13,166 Oct 20 $13,860 $17,867 $12,993 Nov 20 $16,010 $19,823 $14,741 Dec 20 $16,637 $20,585 $15,306 Jan 21 $16,481 $20,377 $15,166 Feb 21 $17,421 $20,939 $16,082 Mar 21 $18,575 $21,856 $17,028 Apr 21 $19,340 $23,022 $17,709 May 21 $19,841 $23,183 $18,123 Jun 21 $19,383 $23,724 $17,915 Jul 21 $19,316 $24,288 $18,059 Aug 21 $19,549 $25,026 $18,417 Sep 21 $19,171 $23,863 $17,776 Oct 21 $20,059 $25,534 $18,678 Nov 21 $18,995 $25,357 $18,020 Dec 21 $20,055 $26,494 $19,157 Jan 22 $20,269 $25,123 $18,711 Feb 22 $20,220 $24,371 $18,493 Mar 22 $20,418 $25,276 $19,015 Apr 22 $19,517 $23,071 $17,943 May 22 $20,113 $23,114 $18,292 Jun 22 $18,343 $21,206 $16,694 Jul 22 $19,316 $23,161 $17,801 Aug 22 $18,791 $22,217 $17,270 Sep 22 $17,181 $20,170 $15,756 Oct 22 $18,865 $21,804 $17,371 Nov 22 $20,057 $23,022 $18,457 Dec 22 $19,284 $21,696 $17,713 Jan 23 $20,424 $23,059 $18,631 Feb 23 $19,816 $22,496 $17,974 Mar 23 $19,493 $23,322 $17,891 Apr 23 $20,167 $23,686 $18,161 May 23 $19,326 $23,789 $17,460 Jun 23 $20,491 $25,361 $18,620 Jul 23 $21,008 $26,176 $19,275 Aug 23 $20,275 $25,759 $18,754 Sep 23 $19,715 $24,531 $18,031 Oct 23 $19,308 $24,015 $17,395 Nov 23 $20,707 $26,208 $18,707 Dec 23 $21,644 $27,399 $19,743 Jan 24 $21,827 $27,859 $19,764 Feb 24 $22,356 $29,347 $20,493 Mar 24 $23,374 $30,291 $21,517 Apr 24 $22,845 $29,054 $20,598 May 24 $23,459 $30,494 $21,251 Jun 24 $23,193 $31,589 $21,051 Jul 24 $24,306 $31,973 $22,127 Aug 24 $24,720 $32,749 $22,721 Sep 24 $24,699 $33,448 $23,036 Oct 24 $24,343 $33,145 $22,783 Nov 24 $25,403 $35,090 $24,238 Dec 24 $23,821 $34,254 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.06 % 8.27 % 9.07 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 292,683,036 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 1,870,118 |
| InvestmentCompanyPortfolioTurnover | 51% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $292,683,036 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 94 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,870,118 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 51% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.7 % Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.7 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.5 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.7 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.2 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.6 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (3.8 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007919 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Equity Dividend V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | UTIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Equity Dividend V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $95 0.91% |
| Expenses Paid, Amount | $ 95 |
| Expense Ratio, Percent | 0.91% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 9.71%. For the same period, the S&P 500 ® ® What contributed to performance? Stock selection in the financials, industrials and utilities sectors made the largest contributions to absolute performance. In financials, a position in one of the largest U.S.-based banks was a key contributor. The outperformance in industrials stemmed from an investment in a government defense and intelligence contractor whose stock outperformed. An electric utility expected to benefit from the growth of artificial intelligence led the way in the utilities sector. What detracted from performance? Stock selection in the healthcare, information technology, and materials sectors detracted. In healthcare, weakness in a leading drugstore chain and pharmacy benefit manager hurt results. The shortfall in information technology resulted from a downturn in a large, South Korean consumer electronics company. In materials, a chemical producer that specializes in paints, coatings, and specialty materials was the leading detractor. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares S&P 500 ® Russell 1000 ® Jan 15 $9,559 $9,700 $9,600 Feb 15 $10,073 $10,257 $10,065 Mar 15 $9,899 $10,095 $9,928 Apr 15 $9,974 $10,192 $10,021 May 15 $10,066 $10,323 $10,141 Jun 15 $9,891 $10,123 $9,939 Jul 15 $10,066 $10,335 $9,982 Aug 15 $9,459 $9,712 $9,388 Sep 15 $9,263 $9,471 $9,104 Oct 15 $9,987 $10,270 $9,791 Nov 15 $10,052 $10,301 $9,829 Dec 15 $9,918 $10,138 $9,617 Jan 16 $9,463 $9,635 $9,120 Feb 16 $9,394 $9,622 $9,118 Mar 16 $9,968 $10,275 $9,775 Apr 16 $10,177 $10,315 $9,980 May 16 $10,296 $10,500 $10,135 Jun 16 $10,385 $10,527 $10,223 Jul 16 $10,644 $10,915 $10,520 Aug 16 $10,704 $10,931 $10,601 Sep 16 $10,594 $10,933 $10,579 Oct 16 $10,527 $10,733 $10,415 Nov 16 $11,249 $11,131 $11,010 Dec 16 $11,511 $11,351 $11,285 Jan 17 $11,511 $11,566 $11,365 Feb 17 $11,935 $12,025 $11,774 Mar 17 $11,863 $12,039 $11,654 Apr 17 $11,945 $12,163 $11,632 May 17 $12,028 $12,334 $11,621 Jun 17 $12,225 $12,411 $11,811 Jul 17 $12,424 $12,666 $11,967 Aug 17 $12,320 $12,705 $11,828 Sep 17 $12,729 $12,967 $12,178 Oct 17 $12,940 $13,270 $12,267 Nov 17 $13,287 $13,677 $12,642 Dec 17 $13,409 $13,829 $12,827 Jan 18 $14,084 $14,621 $13,323 Feb 18 $13,387 $14,082 $12,687 Mar 18 $13,044 $13,724 $12,464 Apr 18 $13,284 $13,777 $12,505 May 18 $13,318 $14,108 $12,579 Jun 18 $13,340 $14,195 $12,610 Jul 18 $13,952 $14,724 $13,109 Aug 18 $14,167 $15,203 $13,303 Sep 18 $14,156 $15,290 $13,329 Oct 18 $13,409 $14,245 $12,639 Nov 18 $13,591 $14,535 $13,016 Dec 18 $12,415 $13,223 $11,767 Jan 19 $13,283 $14,282 $12,682 Feb 19 $13,613 $14,741 $13,088 Mar 19 $13,687 $15,027 $13,171 Apr 19 $14,263 $15,636 $13,638 May 19 $13,476 $14,642 $12,761 Jun 19 $14,325 $15,674 $13,677 Jul 19 $14,497 $15,899 $13,791 Aug 19 $14,235 $15,648 $13,385 Sep 19 $14,610 $15,940 $13,863 Oct 19 $14,893 $16,286 $14,056 Nov 19 $15,395 $16,877 $14,491 Dec 19 $15,824 $17,386 $14,890 Jan 20 $15,411 $17,379 $14,569 Feb 20 $13,999 $15,949 $13,158 Mar 20 $11,961 $13,979 $10,910 Apr 20 $13,169 $15,771 $12,136 May 20 $13,651 $16,522 $12,552 Jun 20 $13,638 $16,850 $12,469 Jul 20 $14,013 $17,801 $12,962 Aug 20 $14,379 $19,080 $13,497 Sep 20 $13,986 $18,355 $13,166 Oct 20 $13,669 $17,867 $12,993 Nov 20 $15,779 $19,823 $14,741 Dec 20 $16,389 $20,585 $15,306 Jan 21 $16,234 $20,377 $15,166 Feb 21 $17,163 $20,939 $16,082 Mar 21 $18,288 $21,856 $17,028 Apr 21 $19,046 $23,022 $17,709 May 21 $19,527 $23,183 $18,123 Jun 21 $19,075 $23,724 $17,915 Jul 21 $19,011 $24,288 $18,059 Aug 21 $19,226 $25,026 $18,417 Sep 21 $18,854 $23,863 $17,776 Oct 21 $19,717 $25,534 $18,678 Nov 21 $18,668 $25,357 $18,020 Dec 21 $19,715 $26,494 $19,157 Jan 22 $19,926 $25,123 $18,711 Feb 22 $19,862 $24,371 $18,493 Mar 22 $20,056 $25,276 $19,015 Apr 22 $19,174 $23,071 $17,943 May 22 $19,760 $23,114 $18,292 Jun 22 $18,001 $21,206 $16,694 Jul 22 $18,946 $23,161 $17,801 Aug 22 $18,429 $22,217 $17,270 Sep 22 $16,861 $20,170 $15,756 Oct 22 $18,506 $21,804 $17,371 Nov 22 $19,662 $23,022 $18,457 Dec 22 $18,906 $21,696 $17,713 Jan 23 $20,008 $23,059 $18,631 Feb 23 $19,411 $22,496 $17,974 Mar 23 $19,112 $23,322 $17,891 Apr 23 $19,743 $23,686 $18,161 May 23 $18,936 $23,789 $17,460 Jun 23 $20,062 $25,361 $18,620 Jul 23 $20,576 $26,176 $19,275 Aug 23 $19,856 $25,759 $18,754 Sep 23 $19,306 $24,531 $18,031 Oct 23 $18,894 $24,015 $17,395 Nov 23 $20,248 $26,208 $18,707 Dec 23 $21,173 $27,399 $19,743 Jan 24 $21,333 $27,859 $19,764 Feb 24 $21,872 $29,347 $20,493 Mar 24 $22,831 $30,291 $21,517 Apr 24 $22,338 $29,054 $20,598 May 24 $22,920 $30,494 $21,251 Jun 24 $22,659 $31,589 $21,051 Jul 24 $23,736 $31,973 $22,127 Aug 24 $24,141 $32,749 $22,721 Sep 24 $24,101 $33,448 $23,036 Oct 24 $23,756 $33,145 $22,783 Nov 24 $24,795 $35,090 $24,238 Dec 24 $23,228 $34,254 $22,580 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.71 % 7.98 % 8.79 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.37 8.68 8.49 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 292,683,036 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 1,870,118 |
| InvestmentCompanyPortfolioTurnover | 51% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $292,683,036 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 94 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,870,118 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 51% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.7 % Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.7 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.5 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.7 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.2 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.6 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (3.8 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007938 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Allocation V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | GLALI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Allocation V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $79 0.75% |
| Expenses Paid, Amount | $ 79 |
| Expense Ratio, Percent | 0.75% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 9.23%. For the same period, the FTSE World Index returned 17.96% and the Reference Benchmark returned 9.09%. What contributed to performance? The Fund’s positive absolute return was primarily driven by equity positioning. Within equities, positioning in information technology and financials as well as, to a lesser extent, consumer discretionary and communication services were the primary contributors to absolute return. Within fixed income, positioning in high yield corporate bonds and securitized assets, notably commercial mortgage-backed securities and asset-backed securities, positively impacted return, as did positioning in nominal U.S. Treasuries and select emerging market sovereign issues. The Fund’s exposure to cash and cash equivalents was actively managed over the period and used to help mitigate portfolio volatility while serving as a source of funds for new investments and to meet redemptions. The Fund’s cash exposure had a slight positive impact on absolute return. What detracted from performance? Within equities, positioning in index-related equity futures used mainly as a hedge during periods of heightened market volatility was the primary detractor from absolute return while positioning in materials detracted to a lesser degree. Within fixed income, management of duration (interest rate sensitivity) via interest rate derivatives negatively impacted absolute performance along with exposure to agency mortgage-backed securities and U.K. interest rates. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares FTSE World Index Reference Benchmark Jan 15 $10,006 $9,835 $9,919 Feb 15 $10,345 $10,390 $10,207 Mar 15 $10,277 $10,231 $10,097 Apr 15 $10,468 $10,503 $10,271 May 15 $10,499 $10,515 $10,235 Jun 15 $10,302 $10,280 $10,087 Jul 15 $10,301 $10,411 $10,193 Aug 15 $9,933 $9,722 $9,808 Sep 15 $9,640 $9,367 $9,644 Oct 15 $10,070 $10,106 $10,100 Nov 15 $10,021 $10,041 $10,007 Dec 15 $9,929 $9,863 $9,922 Jan 16 $9,587 $9,282 $9,655 Feb 16 $9,482 $9,227 $9,698 Mar 16 $9,883 $9,906 $10,185 Apr 16 $9,995 $10,061 $10,296 May 16 $9,949 $10,090 $10,280 Jun 16 $9,949 $10,015 $10,360 Jul 16 $10,238 $10,452 $10,636 Aug 16 $10,284 $10,472 $10,613 Sep 16 $10,337 $10,538 $10,671 Oct 16 $10,205 $10,363 $10,469 Nov 16 $10,232 $10,464 $10,394 Dec 16 $10,337 $10,716 $10,523 Jan 17 $10,524 $11,000 $10,710 Feb 17 $10,717 $11,317 $10,916 Mar 17 $10,804 $11,454 $10,990 Apr 17 $10,937 $11,639 $11,138 May 17 $11,117 $11,902 $11,337 Jun 17 $11,137 $11,958 $11,356 Jul 17 $11,364 $12,265 $11,588 Aug 17 $11,411 $12,306 $11,651 Sep 17 $11,478 $12,563 $11,747 Oct 17 $11,572 $12,817 $11,874 Nov 17 $11,699 $13,084 $12,063 Dec 17 $11,770 $13,296 $12,175 Jan 18 $12,206 $14,015 $12,596 Feb 18 $11,825 $13,450 $12,268 Mar 18 $11,722 $13,177 $12,168 Apr 18 $11,675 $13,317 $12,169 May 18 $11,661 $13,335 $12,178 Jun 18 $11,593 $13,290 $12,148 Jul 18 $11,815 $13,715 $12,374 Aug 18 $11,828 $13,846 $12,469 Sep 18 $11,773 $13,940 $12,480 Oct 18 $11,230 $12,911 $11,905 Nov 18 $11,368 $13,067 $12,026 Dec 18 $10,907 $12,131 $11,606 Jan 19 $11,467 $13,078 $12,198 Feb 19 $11,603 $13,436 $12,367 Mar 19 $11,725 $13,598 $12,524 Apr 19 $11,926 $14,077 $12,777 May 19 $11,603 $13,275 $12,421 Jun 19 $12,077 $14,149 $13,008 Jul 19 $12,039 $14,205 $13,017 Aug 19 $12,046 $13,892 $12,972 Sep 19 $12,133 $14,218 $13,101 Oct 19 $12,395 $14,609 $13,340 Nov 19 $12,561 $14,984 $13,495 Dec 19 $12,869 $15,496 $13,787 Jan 20 $12,884 $15,352 $13,785 Feb 20 $12,372 $14,060 $13,154 Mar 20 $11,267 $12,163 $12,128 Apr 20 $12,200 $13,483 $12,941 May 20 $12,673 $14,128 $13,310 Jun 20 $12,929 $14,536 $13,557 Jul 20 $13,609 $15,256 $14,072 Aug 20 $14,141 $16,225 $14,574 Sep 20 $13,921 $15,698 $14,286 Oct 20 $13,662 $15,232 $14,023 Nov 20 $14,961 $17,217 $15,149 Dec 20 $15,572 $18,027 $15,626 Jan 21 $15,500 $17,877 $15,497 Feb 21 $15,708 $18,323 $15,618 Mar 21 $15,836 $18,938 $15,870 Apr 21 $16,379 $19,814 $16,360 May 21 $16,611 $20,125 $16,580 Jun 21 $16,603 $20,391 $16,621 Jul 21 $16,593 $20,678 $16,850 Aug 21 $16,756 $21,187 $17,072 Sep 21 $16,226 $20,301 $16,534 Oct 21 $16,683 $21,363 $16,987 Nov 21 $16,234 $20,870 $16,763 Dec 21 $16,611 $21,804 $17,210 Jan 22 $15,958 $20,707 $16,593 Feb 22 $15,612 $20,222 $16,315 Mar 22 $15,481 $20,769 $16,367 Apr 22 $14,660 $19,060 $15,301 May 22 $14,800 $19,124 $15,374 Jun 22 $13,894 $17,419 $14,399 Jul 22 $14,535 $18,740 $15,144 Aug 22 $14,100 $18,003 $14,546 Sep 22 $13,135 $16,302 $13,463 Oct 22 $13,579 $17,434 $14,006 Nov 22 $14,355 $18,728 $14,870 Dec 22 $13,977 $17,979 $14,526 Jan 23 $14,715 $19,269 $15,290 Feb 23 $14,195 $18,787 $14,870 Mar 23 $14,526 $19,368 $15,356 Apr 23 $14,649 $19,701 $15,560 May 23 $14,497 $19,548 $15,355 Jun 23 $14,980 $20,689 $15,851 Jul 23 $15,264 $21,405 $16,194 Aug 23 $14,914 $20,872 $15,889 Sep 23 $14,365 $19,997 $15,339 Oct 23 $14,147 $19,417 $15,026 Nov 23 $15,103 $21,271 $16,114 Dec 23 $15,770 $22,326 $16,806 Jan 24 $15,760 $22,530 $16,835 Feb 24 $16,205 $23,469 $17,145 Mar 24 $16,611 $24,240 $17,523 Apr 24 $16,002 $23,369 $17,000 May 24 $16,563 $24,374 $17,513 Jun 24 $16,766 $24,906 $17,735 Jul 24 $16,953 $25,346 $18,117 Aug 24 $17,304 $26,028 $18,545 Sep 24 $17,586 $26,496 $18,848 Oct 24 $17,167 $25,946 $18,341 Nov 24 $17,674 $27,001 $18,731 Dec 24 $17,226 $26,336 $18,334 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.23 % 6.01 % 5.59 % FTSE World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.96 11.19 10.17 Reference Benchmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.09 5.87 6.25 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 4,138,568,997 |
| Holdings Count | Holding | 2,329 |
| Advisory Fees Paid, Amount | $ 28,438,638 |
| InvestmentCompanyPortfolioTurnover | 154% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $4,138,568,997 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2,329 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $28,438,638 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 154% |
| C000007939 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Allocation V.I. Fund |
| Class Name | Class II Shares |
| Trading Symbol | GLAII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Allocation V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II Shares $94 0.90% |
| Expenses Paid, Amount | $ 94 |
| Expense Ratio, Percent | 0.90% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class II Shares returned 9.09%. For the same period, the FTSE World Index returned 17.96% and the Reference Benchmark returned 9.09%. What contributed to performance? The Fund’s positive absolute return was primarily driven by equity positioning. Within equities, positioning in information technology and financials as well as, to a lesser extent, consumer discretionary and communication services were the primary contributors to absolute return. Within fixed income, positioning in high yield corporate bonds and securitized assets, notably commercial mortgage-backed securities and asset-backed securities, positively impacted return, as did positioning in nominal U.S. Treasuries and select emerging market sovereign issues. The Fund’s exposure to cash and cash equivalents was actively managed over the period and used to help mitigate portfolio volatility while serving as a source of funds for new investments and to meet redemptions. The Fund’s cash exposure had a slight positive impact on absolute return. What detracted from performance? Within equities, positioning in index-related equity futures used mainly as a hedge during periods of heightened market volatility was the primary detractor from absolute return while positioning in materials detracted to a lesser degree. Within fixed income, management of duration (interest rate sensitivity) via interest rate derivatives negatively impacted absolute performance along with exposure to agency mortgage-backed securities and U.K. interest rates. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class II Shares FTSE World Index Reference Benchmark Jan 15 $10,006 $9,835 $9,919 Feb 15 $10,346 $10,390 $10,207 Mar 15 $10,272 $10,231 $10,097 Apr 15 $10,464 $10,503 $10,271 May 15 $10,494 $10,515 $10,235 Jun 15 $10,297 $10,280 $10,087 Jul 15 $10,290 $10,411 $10,193 Aug 15 $9,921 $9,722 $9,808 Sep 15 $9,633 $9,367 $9,644 Oct 15 $10,058 $10,106 $10,100 Nov 15 $10,008 $10,041 $10,007 Dec 15 $9,913 $9,863 $9,922 Jan 16 $9,570 $9,282 $9,655 Feb 16 $9,465 $9,227 $9,698 Mar 16 $9,860 $9,906 $10,185 Apr 16 $9,973 $10,061 $10,296 May 16 $9,926 $10,090 $10,280 Jun 16 $9,926 $10,015 $10,360 Jul 16 $10,210 $10,452 $10,636 Aug 16 $10,256 $10,472 $10,613 Sep 16 $10,309 $10,538 $10,671 Oct 16 $10,177 $10,363 $10,469 Nov 16 $10,203 $10,464 $10,394 Dec 16 $10,305 $10,716 $10,523 Jan 17 $10,485 $11,000 $10,710 Feb 17 $10,679 $11,317 $10,916 Mar 17 $10,772 $11,454 $10,990 Apr 17 $10,899 $11,639 $11,138 May 17 $11,072 $11,902 $11,337 Jun 17 $11,099 $11,958 $11,356 Jul 17 $11,319 $12,265 $11,588 Aug 17 $11,366 $12,306 $11,651 Sep 17 $11,433 $12,563 $11,747 Oct 17 $11,520 $12,817 $11,874 Nov 17 $11,647 $13,084 $12,063 Dec 17 $11,722 $13,296 $12,175 Jan 18 $12,151 $14,015 $12,596 Feb 18 $11,769 $13,450 $12,268 Mar 18 $11,667 $13,177 $12,168 Apr 18 $11,613 $13,317 $12,169 May 18 $11,599 $13,335 $12,178 Jun 18 $11,531 $13,290 $12,148 Jul 18 $11,753 $13,715 $12,374 Aug 18 $11,766 $13,846 $12,469 Sep 18 $11,711 $13,940 $12,480 Oct 18 $11,162 $12,911 $11,905 Nov 18 $11,306 $13,067 $12,026 Dec 18 $10,840 $12,131 $11,606 Jan 19 $11,399 $13,078 $12,198 Feb 19 $11,528 $13,436 $12,367 Mar 19 $11,649 $13,598 $12,524 Apr 19 $11,843 $14,077 $12,777 May 19 $11,528 $13,275 $12,421 Jun 19 $11,993 $14,149 $13,008 Jul 19 $11,956 $14,205 $13,017 Aug 19 $11,956 $13,892 $12,972 Sep 19 $12,050 $14,218 $13,101 Oct 19 $12,310 $14,609 $13,340 Nov 19 $12,469 $14,984 $13,495 Dec 19 $12,773 $15,496 $13,787 Jan 20 $12,788 $15,352 $13,785 Feb 20 $12,272 $14,060 $13,154 Mar 20 $11,179 $12,163 $12,128 Apr 20 $12,100 $13,483 $12,941 May 20 $12,571 $14,128 $13,310 Jun 20 $12,826 $14,536 $13,557 Jul 20 $13,496 $15,256 $14,072 Aug 20 $14,018 $16,225 $14,574 Sep 20 $13,799 $15,698 $14,286 Oct 20 $13,542 $15,232 $14,023 Nov 20 $14,828 $17,217 $15,149 Dec 20 $15,431 $18,027 $15,626 Jan 21 $15,359 $17,877 $15,497 Feb 21 $15,558 $18,323 $15,618 Mar 21 $15,685 $18,938 $15,870 Apr 21 $16,226 $19,814 $16,360 May 21 $16,448 $20,125 $16,580 Jun 21 $16,440 $20,391 $16,621 Jul 21 $16,423 $20,678 $16,850 Aug 21 $16,585 $21,187 $17,072 Sep 21 $16,057 $20,301 $16,534 Oct 21 $16,512 $21,363 $16,987 Nov 21 $16,065 $20,870 $16,763 Dec 21 $16,441 $21,804 $17,210 Jan 22 $15,782 $20,707 $16,593 Feb 22 $15,448 $20,222 $16,315 Mar 22 $15,318 $20,769 $16,367 Apr 22 $14,501 $19,060 $15,301 May 22 $14,631 $19,124 $15,374 Jun 22 $13,740 $17,419 $14,399 Jul 22 $14,368 $18,740 $15,144 Aug 22 $13,935 $18,003 $14,546 Sep 22 $12,985 $16,302 $13,463 Oct 22 $13,418 $17,434 $14,006 Nov 22 $14,180 $18,728 $14,870 Dec 22 $13,813 $17,979 $14,526 Jan 23 $14,537 $19,269 $15,290 Feb 23 $14,020 $18,787 $14,870 Mar 23 $14,349 $19,368 $15,356 Apr 23 $14,462 $19,701 $15,560 May 23 $14,302 $19,548 $15,355 Jun 23 $14,782 $20,689 $15,851 Jul 23 $15,064 $21,405 $16,194 Aug 23 $14,707 $20,872 $15,889 Sep 23 $14,170 $19,997 $15,339 Oct 23 $13,954 $19,417 $15,026 Nov 23 $14,895 $21,271 $16,114 Dec 23 $15,553 $22,326 $16,806 Jan 24 $15,543 $22,530 $16,835 Feb 24 $15,975 $23,469 $17,145 Mar 24 $16,378 $24,240 $17,523 Apr 24 $15,774 $23,369 $17,000 May 24 $16,321 $24,374 $17,513 Jun 24 $16,522 $24,906 $17,735 Jul 24 $16,698 $25,346 $18,117 Aug 24 $17,047 $26,028 $18,545 Sep 24 $17,327 $26,496 $18,848 Oct 24 $16,902 $25,946 $18,341 Nov 24 $17,405 $27,001 $18,731 Dec 24 $16,966 $26,336 $18,334 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class II Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.09 % 5.84 % 5.43 % FTSE World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.96 11.19 10.17 Reference Benchmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.09 5.87 6.25 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 4,138,568,997 |
| Holdings Count | Holding | 2,329 |
| Advisory Fees Paid, Amount | $ 28,438,638 |
| InvestmentCompanyPortfolioTurnover | 154% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $4,138,568,997 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2,329 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $28,438,638 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 154% |
| C000007940 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Global Allocation V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | GAIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Global Allocation V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $105 1.00% |
| Expenses Paid, Amount | $ 105 |
| Expense Ratio, Percent | 1% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 9.01%. For the same period, the FTSE World Index returned 17.96% and the Reference Benchmark returned 9.09%. What contributed to performance? The Fund’s positive absolute return was primarily driven by equity positioning. Within equities, positioning in information technology and financials as well as, to a lesser extent, consumer discretionary and communication services were the primary contributors to absolute return. Within fixed income, positioning in high yield corporate bonds and securitized assets, notably commercial mortgage-backed securities and asset-backed securities, positively impacted return, as did positioning in nominal U.S. Treasuries and select emerging market sovereign issues. The Fund’s exposure to cash and cash equivalents was actively managed over the period and used to help mitigate portfolio volatility while serving as a source of funds for new investments and to meet redemptions. The Fund’s cash exposure had a slight positive impact on absolute return. What detracted from performance? Within equities, positioning in index-related equity futures used mainly as a hedge during periods of heightened market volatility was the primary detractor from absolute return while positioning in materials detracted to a lesser degree. Within fixed income, management of duration (interest rate sensitivity) via interest rate derivatives negatively impacted absolute performance along with exposure to agency mortgage-backed securities and U.K. interest rates. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares FTSE World Index Reference Benchmark Jan 15 $10,000 $9,835 $9,919 Feb 15 $10,339 $10,390 $10,207 Mar 15 $10,268 $10,231 $10,097 Apr 15 $10,459 $10,503 $10,271 May 15 $10,487 $10,515 $10,235 Jun 15 $10,289 $10,280 $10,087 Jul 15 $10,282 $10,411 $10,193 Aug 15 $9,909 $9,722 $9,808 Sep 15 $9,623 $9,367 $9,644 Oct 15 $10,045 $10,106 $10,100 Nov 15 $9,995 $10,041 $10,007 Dec 15 $9,900 $9,863 $9,922 Jan 16 $9,558 $9,282 $9,655 Feb 16 $9,452 $9,227 $9,698 Mar 16 $9,847 $9,906 $10,185 Apr 16 $9,961 $10,061 $10,296 May 16 $9,908 $10,090 $10,280 Jun 16 $9,908 $10,015 $10,360 Jul 16 $10,196 $10,452 $10,636 Aug 16 $10,234 $10,472 $10,613 Sep 16 $10,287 $10,538 $10,671 Oct 16 $10,158 $10,363 $10,469 Nov 16 $10,181 $10,464 $10,394 Dec 16 $10,277 $10,716 $10,523 Jan 17 $10,461 $11,000 $10,710 Feb 17 $10,653 $11,317 $10,916 Mar 17 $10,738 $11,454 $10,990 Apr 17 $10,868 $11,639 $11,138 May 17 $11,045 $11,902 $11,337 Jun 17 $11,061 $11,958 $11,356 Jul 17 $11,284 $12,265 $11,588 Aug 17 $11,330 $12,306 $11,651 Sep 17 $11,400 $12,563 $11,747 Oct 17 $11,485 $12,817 $11,874 Nov 17 $11,616 $13,084 $12,063 Dec 17 $11,685 $13,296 $12,175 Jan 18 $12,110 $14,015 $12,596 Feb 18 $11,740 $13,450 $12,268 Mar 18 $11,630 $13,177 $12,168 Apr 18 $11,583 $13,317 $12,169 May 18 $11,567 $13,335 $12,178 Jun 18 $11,496 $13,290 $12,148 Jul 18 $11,713 $13,715 $12,374 Aug 18 $11,729 $13,846 $12,469 Sep 18 $11,673 $13,940 $12,480 Oct 18 $11,133 $12,911 $11,905 Nov 18 $11,268 $13,067 $12,026 Dec 18 $10,800 $12,131 $11,606 Jan 19 $11,358 $13,078 $12,198 Feb 19 $11,492 $13,436 $12,367 Mar 19 $11,609 $13,598 $12,524 Apr 19 $11,800 $14,077 $12,777 May 19 $11,484 $13,275 $12,421 Jun 19 $11,951 $14,149 $13,008 Jul 19 $11,907 $14,205 $13,017 Aug 19 $11,907 $13,892 $12,972 Sep 19 $12,000 $14,218 $13,101 Oct 19 $12,253 $14,609 $13,340 Nov 19 $12,413 $14,984 $13,495 Dec 19 $12,717 $15,496 $13,787 Jan 20 $12,726 $15,352 $13,785 Feb 20 $12,217 $14,060 $13,154 Mar 20 $11,128 $12,163 $12,128 Apr 20 $12,041 $13,483 $12,941 May 20 $12,506 $14,128 $13,310 Jun 20 $12,761 $14,536 $13,557 Jul 20 $13,424 $15,256 $14,072 Aug 20 $13,949 $16,225 $14,574 Sep 20 $13,727 $15,698 $14,286 Oct 20 $13,469 $15,232 $14,023 Nov 20 $14,749 $17,217 $15,149 Dec 20 $15,351 $18,027 $15,626 Jan 21 $15,275 $17,877 $15,497 Feb 21 $15,473 $18,323 $15,618 Mar 21 $15,596 $18,938 $15,870 Apr 21 $16,133 $19,814 $16,360 May 21 $16,350 $20,125 $16,580 Jun 21 $16,350 $20,391 $16,621 Jul 21 $16,329 $20,678 $16,850 Aug 21 $16,483 $21,187 $17,072 Sep 21 $15,961 $20,301 $16,534 Oct 21 $16,406 $21,363 $16,987 Nov 21 $15,961 $20,870 $16,763 Dec 21 $16,336 $21,804 $17,210 Jan 22 $15,677 $20,707 $16,593 Feb 22 $15,347 $20,222 $16,315 Mar 22 $15,211 $20,769 $16,367 Apr 22 $14,404 $19,060 $15,301 May 22 $14,529 $19,124 $15,374 Jun 22 $13,643 $17,419 $14,399 Jul 22 $14,276 $18,740 $15,144 Aug 22 $13,837 $18,003 $14,546 Sep 22 $12,890 $16,302 $13,463 Oct 22 $13,329 $17,434 $14,006 Nov 22 $14,079 $18,728 $14,870 Dec 22 $13,710 $17,979 $14,526 Jan 23 $14,426 $19,269 $15,290 Feb 23 $13,918 $18,787 $14,870 Mar 23 $14,241 $19,368 $15,356 Apr 23 $14,345 $19,701 $15,560 May 23 $14,195 $19,548 $15,355 Jun 23 $14,668 $20,689 $15,851 Jul 23 $14,946 $21,405 $16,194 Aug 23 $14,588 $20,872 $15,889 Sep 23 $14,056 $19,997 $15,339 Oct 23 $13,837 $19,417 $15,026 Nov 23 $14,772 $21,271 $16,114 Dec 23 $15,422 $22,326 $16,806 Jan 24 $15,410 $22,530 $16,835 Feb 24 $15,836 $23,469 $17,145 Mar 24 $16,239 $24,240 $17,523 Apr 24 $15,635 $23,369 $17,000 May 24 $16,180 $24,374 $17,513 Jun 24 $16,381 $24,906 $17,735 Jul 24 $16,550 $25,346 $18,117 Aug 24 $16,897 $26,028 $18,545 Sep 24 $17,172 $26,496 $18,848 Oct 24 $16,754 $25,946 $18,341 Nov 24 $17,244 $27,001 $18,731 Dec 24 $16,812 $26,336 $18,334 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.01 % 5.74 % 5.33 % FTSE World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.96 11.19 10.17 Reference Benchmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.09 5.87 6.25 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 4,138,568,997 |
| Holdings Count | Holding | 2,329 |
| Advisory Fees Paid, Amount | $ 28,438,638 |
| InvestmentCompanyPortfolioTurnover | 154% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $4,138,568,997 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2,329 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $28,438,638 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 154% |
| C000007929 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Government Money Market V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | DMMKI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Government Money Market V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $31 0.30% |
| Expenses Paid, Amount | $ 31 |
| Expense Ratio, Percent | 0.30% |
| AssetsNet | $ 200,740,775 |
| Holdings Count | Holding | 87 |
| Advisory Fees Paid, Amount | $ 607,596 |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $200,740,775 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 87 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $607,596 Current seven-day yields as of December 31, 2024 (The 7-day SEC Yield may differ from the 7-Day Yield shown due to the fact that the 7-Day SEC Yield excludes distributed capital gains.) 0 7-Day SEC Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.23% 7-Day Yield ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.23% |
| Holdings [Text Block] | Portfolio composition Asset Type Percent of Net Assets U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 39.8 % Repurchase Agreements ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 34.9 U.S. Government Sponsored Agency Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.1 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 |
| C000195945 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock International Index V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | BIIVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock International Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $27 0.27% |
| Expenses Paid, Amount | $ 27 |
| Expense Ratio, Percent | 0.27% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the period? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 3.43%. For the same period, the MSCI EAFE Index returned 3.82%. In 2024, Japan's equity markets saw strong performance. The Nikkei 225 Index reached all-time highs in the first half of the year, driven by corporate governance reforms, monetary policy normalization, and increased foreign investment as Japan was seen as a substitute for China amid geopolitical fragmentation. The Bank of Japan raised rates for the first time since 2007 in April 2024 and again in July, leading to a sell-off in global markets. In May, the Japanese Yen fell to a 38-year low against the U.S. dollar. In the third quarter, Japan benefited from increased tourism, but the weak yen made imports more expensive. The Nikkei Index declined sharply, but business sentiment remained stable throughout the third quarter. In the fourth quarter, the Nikkei 225 briefly rose above 40,000 in December but declined due to concerns about U.S. tariff policies. European equities underperformed compared to the United States. The U.K. was in a technical recession at the end of 2023, with mixed economic expectations due to persistent inflation and potential global shipping disruptions. The Bank of England maintained its bank rate at 5.25% in March 2024, hoping for positive GDP growth. Keir Starmer became U.K. Prime Minister, leading to cautious optimism. The Bank of England kept the Bank Rate at 5.25% in the second quarter, despite headline CPI falling to 2.00% in May. The European Parliament elections in June 2024 showed a drift to the right, increasing Euroskeptic members. The European Central Bank (“ECB”) held rates steady at 4.00% in April but cut rates by 25 bps in May. The ECB also cut rates by 25 bps in September and December. European equities finished the fourth quarter negatively due to uncertainty about President Trump's economic policies. The European Commission projected real GDP growth in 2024 at 0.9% in the EU and 0.8% in the euro area, with growth expected to pick up to 1.5% in 2025. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares MSCI EAFE Index Jan 15 $10,086 $10,049 Feb 15 $10,697 $10,650 Mar 15 $10,533 $10,488 Apr 15 $10,948 $10,916 May 15 $10,933 $10,860 Jun 15 $10,611 $10,552 Jul 15 $10,792 $10,772 Aug 15 $10,016 $9,979 Sep 15 $9,545 $9,472 Oct 15 $10,188 $10,213 Nov 15 $10,086 $10,054 Dec 15 $9,884 $9,919 Jan 16 $9,309 $9,201 Feb 16 $9,009 $9,033 Mar 16 $9,616 $9,620 Apr 16 $9,819 $9,899 May 16 $9,819 $9,809 Jun 16 $9,544 $9,480 Jul 16 $9,973 $9,960 Aug 16 $9,989 $9,967 Sep 16 $10,126 $10,090 Oct 16 $9,900 $9,883 Nov 16 $9,681 $9,687 Dec 16 $9,973 $10,018 Jan 17 $10,293 $10,308 Feb 17 $10,419 $10,456 Mar 17 $10,739 $10,744 Apr 17 $11,026 $11,017 May 17 $11,413 $11,421 Jun 17 $11,421 $11,401 Jul 17 $11,758 $11,730 Aug 17 $11,750 $11,726 Sep 17 $12,019 $12,017 Oct 17 $12,205 $12,200 Nov 17 $12,323 $12,328 Dec 17 $12,506 $12,526 Jan 18 $13,119 $13,154 Feb 18 $12,462 $12,560 Mar 18 $12,375 $12,334 Apr 18 $12,567 $12,615 May 18 $12,322 $12,332 Jun 18 $12,156 $12,181 Jul 18 $12,488 $12,481 Aug 18 $12,208 $12,240 Sep 18 $12,331 $12,346 Oct 18 $11,340 $11,364 Nov 18 $11,366 $11,349 Dec 18 $10,793 $10,798 Jan 19 $11,510 $11,508 Feb 19 $11,781 $11,801 Mar 19 $11,875 $11,876 Apr 19 $12,227 $12,210 May 19 $11,618 $11,623 Jun 19 $12,295 $12,313 Jul 19 $12,051 $12,157 Aug 19 $11,821 $11,842 Sep 19 $12,173 $12,181 Oct 19 $12,592 $12,619 Nov 19 $12,741 $12,761 Dec 19 $13,123 $13,176 Jan 20 $12,787 $12,900 Feb 20 $11,823 $11,734 Mar 20 $10,090 $10,168 Apr 20 $10,761 $10,825 May 20 $11,334 $11,296 Jun 20 $11,711 $11,681 Jul 20 $11,949 $11,953 Aug 20 $12,522 $12,568 Sep 20 $12,242 $12,241 Oct 20 $11,753 $11,752 Nov 20 $13,500 $13,574 Dec 20 $14,177 $14,205 Jan 21 $13,991 $14,054 Feb 21 $14,333 $14,369 Mar 21 $14,675 $14,700 Apr 21 $15,117 $15,142 May 21 $15,673 $15,636 Jun 21 $15,459 $15,460 Jul 21 $15,581 $15,576 Aug 21 $15,824 $15,851 Sep 21 $15,296 $15,391 Oct 21 $15,767 $15,769 Nov 21 $15,053 $15,035 Dec 21 $15,778 $15,805 Jan 22 $15,174 $15,042 Feb 22 $14,716 $14,776 Mar 22 $14,702 $14,871 Apr 22 $13,758 $13,909 May 22 $14,009 $14,013 Jun 22 $12,755 $12,713 Jul 22 $13,419 $13,346 Aug 22 $12,623 $12,712 Sep 22 $11,443 $11,523 Oct 22 $12,121 $12,143 Nov 22 $13,773 $13,510 Dec 22 $13,514 $13,521 Jan 23 $14,678 $14,616 Feb 23 $14,225 $14,311 Mar 23 $14,678 $14,666 Apr 23 $15,087 $15,080 May 23 $14,482 $14,442 Jun 23 $15,147 $15,099 Jul 23 $15,547 $15,587 Aug 23 $14,941 $14,990 Sep 23 $14,396 $14,478 Oct 23 $13,957 $13,891 Nov 23 $15,153 $15,181 Dec 23 $15,963 $15,987 Jan 24 $15,885 $16,079 Feb 24 $16,337 $16,373 Mar 24 $16,883 $16,912 Apr 24 $16,337 $16,479 May 24 $17,179 $17,117 Jun 24 $16,805 $16,841 Jul 24 $17,308 $17,335 Aug 24 $17,901 $17,899 Sep 24 $18,026 $18,064 Oct 24 $17,026 $17,082 Nov 24 $16,995 $16,985 Dec 24 $16,511 $16,598 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.43 % 4.70 % 5.14 % MSCI EAFE Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.82 4.73 5.20 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 205,690,256 |
| Holdings Count | Holding | 729 |
| Advisory Fees Paid, Amount | $ 170,370 |
| InvestmentCompanyPortfolioTurnover | 4% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $205,690,256 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 729 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $170,370 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.8 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.4 Australia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.3 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.4 Netherlands ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Sweden ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Other Footnote Reference (a) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000225417 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock International Index V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | BIIYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock International Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $52 0.52% |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 0.52% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the period? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 3.20%. For the same period, the MSCI EAFE Index returned 3.82%. In 2024, Japan's equity markets saw strong performance. The Nikkei 225 Index reached all-time highs in the first half of the year, driven by corporate governance reforms, monetary policy normalization, and increased foreign investment as Japan was seen as a substitute for China amid geopolitical fragmentation. The Bank of Japan raised rates for the first time since 2007 in April 2024 and again in July, leading to a sell-off in global markets. In May, the Japanese Yen fell to a 38-year low against the U.S. dollar. In the third quarter, Japan benefited from increased tourism, but the weak yen made imports more expensive. The Nikkei Index declined sharply, but business sentiment remained stable throughout the third quarter. In the fourth quarter, the Nikkei 225 briefly rose above 40,000 in December but declined due to concerns about U.S. tariff policies. European equities underperformed compared to the United States. The U.K. was in a technical recession at the end of 2023, with mixed economic expectations due to persistent inflation and potential global shipping disruptions. The Bank of England maintained its bank rate at 5.25% in March 2024, hoping for positive GDP growth. Keir Starmer became U.K. Prime Minister, leading to cautious optimism. The Bank of England kept the Bank Rate at 5.25% in the second quarter, despite headline CPI falling to 2.00% in May. The European Parliament elections in June 2024 showed a drift to the right, increasing Euroskeptic members. The European Central Bank (“ECB”) held rates steady at 4.00% in April but cut rates by 25 bps in May. The ECB also cut rates by 25 bps in September and December. European equities finished the fourth quarter negatively due to uncertainty about President Trump's economic policies. The European Commission projected real GDP growth in 2024 at 0.9% in the EU and 0.8% in the euro area, with growth expected to pick up to 1.5% in 2025. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares MSCI EAFE Index Jan 15 $10,084 $10,049 Feb 15 $10,693 $10,650 Mar 15 $10,526 $10,488 Apr 15 $10,939 $10,916 May 15 $10,921 $10,860 Jun 15 $10,598 $10,552 Jul 15 $10,776 $10,772 Aug 15 $9,999 $9,979 Sep 15 $9,528 $9,472 Oct 15 $10,167 $10,213 Nov 15 $10,063 $10,054 Dec 15 $9,859 $9,919 Jan 16 $9,284 $9,201 Feb 16 $8,983 $9,033 Mar 16 $9,586 $9,620 Apr 16 $9,786 $9,899 May 16 $9,784 $9,809 Jun 16 $9,508 $9,480 Jul 16 $9,933 $9,960 Aug 16 $9,947 $9,967 Sep 16 $10,082 $10,090 Oct 16 $9,854 $9,883 Nov 16 $9,635 $9,687 Dec 16 $9,923 $10,018 Jan 17 $10,239 $10,308 Feb 17 $10,363 $10,456 Mar 17 $10,679 $10,744 Apr 17 $10,962 $11,017 May 17 $11,344 $11,421 Jun 17 $11,350 $11,401 Jul 17 $11,683 $11,730 Aug 17 $11,672 $11,726 Sep 17 $11,937 $12,017 Oct 17 $12,119 $12,200 Nov 17 $12,233 $12,328 Dec 17 $12,413 $12,526 Jan 18 $13,018 $13,154 Feb 18 $12,364 $12,560 Mar 18 $12,275 $12,334 Apr 18 $12,463 $12,615 May 18 $12,217 $12,332 Jun 18 $12,050 $12,181 Jul 18 $12,377 $12,481 Aug 18 $12,097 $12,240 Sep 18 $12,216 $12,346 Oct 18 $11,232 $11,364 Nov 18 $11,256 $11,349 Dec 18 $10,686 $10,798 Jan 19 $11,393 $11,508 Feb 19 $11,659 $11,801 Mar 19 $11,750 $11,876 Apr 19 $12,096 $12,210 May 19 $11,491 $11,623 Jun 19 $12,157 $12,313 Jul 19 $11,914 $12,157 Aug 19 $11,684 $11,842 Sep 19 $12,029 $12,181 Oct 19 $12,441 $12,619 Nov 19 $12,586 $12,761 Dec 19 $12,960 $13,176 Jan 20 $12,626 $12,900 Feb 20 $11,671 $11,734 Mar 20 $9,959 $10,168 Apr 20 $10,619 $10,825 May 20 $11,182 $11,296 Jun 20 $11,552 $11,681 Jul 20 $11,783 $11,953 Aug 20 $12,346 $12,568 Sep 20 $12,068 $12,241 Oct 20 $11,583 $11,752 Nov 20 $13,302 $13,574 Dec 20 $13,966 $14,205 Jan 21 $13,780 $14,054 Feb 21 $14,102 $14,369 Mar 21 $14,453 $14,700 Apr 21 $14,874 $15,142 May 21 $15,421 $15,636 Jun 21 $15,197 $15,460 Jul 21 $15,317 $15,576 Aug 21 $15,556 $15,851 Sep 21 $15,036 $15,391 Oct 21 $15,486 $15,769 Nov 21 $14,783 $15,035 Dec 21 $15,497 $15,805 Jan 22 $14,903 $15,042 Feb 22 $14,453 $14,776 Mar 22 $14,424 $14,871 Apr 22 $13,495 $13,909 May 22 $13,756 $14,013 Jun 22 $12,523 $12,713 Jul 22 $13,161 $13,346 Aug 22 $12,378 $12,712 Sep 22 $11,217 $11,523 Oct 22 $11,884 $12,143 Nov 22 $13,495 $13,510 Dec 22 $13,237 $13,521 Jan 23 $14,380 $14,616 Feb 23 $13,935 $14,311 Mar 23 $14,366 $14,666 Apr 23 $14,767 $15,080 May 23 $14,172 $14,442 Jun 23 $14,811 $15,099 Jul 23 $15,219 $15,587 Aug 23 $14,609 $14,990 Sep 23 $14,088 $14,478 Oct 23 $13,642 $13,891 Nov 23 $14,802 $15,181 Dec 23 $15,596 $15,987 Jan 24 $15,520 $16,079 Feb 24 $15,963 $16,373 Mar 24 $16,483 $16,912 Apr 24 $15,948 $16,479 May 24 $16,773 $17,117 Jun 24 $16,406 $16,841 Jul 24 $16,884 $17,335 Aug 24 $17,466 $17,899 Sep 24 $17,589 $18,064 Oct 24 $16,608 $17,082 Nov 24 $16,562 $16,985 Dec 24 $16,096 $16,598 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.20 % 4.43 % 4.87 % MSCI EAFE Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.82 4.73 5.20 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 205,690,256 |
| Holdings Count | Holding | 729 |
| Advisory Fees Paid, Amount | $ 170,370 |
| InvestmentCompanyPortfolioTurnover | 4% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $205,690,256 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 729 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $170,370 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.8 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.4 Australia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.3 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.4 Netherlands ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Sweden ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Other Footnote Reference (a) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000007920 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock International V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | IVVVI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock International V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $86 0.86% |
| Expenses Paid, Amount | $ 86 |
| Expense Ratio, Percent | 0.86% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 0.37%. For the same period, the MSCI ACWI ex USA Index returned 5.53%. What contributed to performance? Positive contributions to the Fund’s performance were led by stock selection within the communication services, energy and materials sectors. At the individual stock level, leading contributors included holdings of a Japan-based operator of an online employment platform which saw its results boosted by a strong labor market and announced a major share repurchase program. In addition, shares of a leading Chinese social media and videogame company held in the Fund rose sharply on strong advertising revenues boosted by the deployment of artificial intelligence to improve targeting. Finally, a large Italian international bank held in the Fund outperformed on strong earnings supported by its wealth management and insurance businesses and improved sentiment around bank net interest margins given the outlook for interest rates to remain higher for longer. What detracted from performance? From a sector perspective, stock selection within information technology, consumer discretionary and healthcare detracted the most from return. At the individual stock level, holdings of a Japan-based semiconductor company lagged as declining prices and sales for commodity memory components weighed on its results, although there are signs that demand for its high-bandwidth memory components used in artificial intelligence is rebounding. Exposure to a North American railroad operator also detracted as higher labor and fuel costs led to disappointing results and the larger railway industry faces an uncertain 2025 freight volume outlook, leading management to lower guidance. Finally, a German manufacturer of personal care products underperformed on lower-than-expected sales growth in its consumer division and a challenging Chinese market which drove a decline in sales for one of its premium skin care brands. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares MSCI ACWI ex USA Index Jan 15 $9,703 $9,985 Feb 15 $10,307 $10,519 Mar 15 $10,109 $10,349 Apr 15 $10,436 $10,872 May 15 $10,782 $10,702 Jun 15 $10,505 $10,403 Jul 15 $10,602 $10,375 Aug 15 $9,869 $9,582 Sep 15 $9,298 $9,137 Oct 15 $9,973 $9,818 Nov 15 $10,002 $9,615 Dec 15 $9,725 $9,434 Jan 16 $8,963 $8,792 Feb 16 $8,813 $8,692 Mar 16 $9,344 $9,398 Apr 16 $9,604 $9,646 May 16 $9,644 $9,483 Jun 16 $9,184 $9,338 Jul 16 $9,669 $9,800 Aug 16 $9,820 $9,862 Sep 16 $9,880 $9,983 Oct 16 $9,870 $9,840 Nov 16 $9,559 $9,612 Dec 16 $9,762 $9,858 Jan 17 $10,027 $10,207 Feb 17 $10,292 $10,370 Mar 17 $10,741 $10,633 Apr 17 $11,046 $10,860 May 17 $11,362 $11,213 Jun 17 $11,383 $11,248 Jul 17 $12,015 $11,662 Aug 17 $12,066 $11,723 Sep 17 $12,147 $11,941 Oct 17 $12,218 $12,165 Nov 17 $12,473 $12,264 Dec 17 $12,799 $12,538 Jan 18 $13,594 $13,237 Feb 18 $12,626 $12,613 Mar 18 $12,432 $12,390 Apr 18 $12,555 $12,588 May 18 $12,086 $12,297 Jun 18 $12,086 $12,066 Jul 18 $12,438 $12,355 Aug 18 $11,923 $12,096 Sep 18 $11,882 $12,151 Oct 18 $10,902 $11,163 Nov 18 $10,860 $11,269 Dec 18 $10,006 $10,758 Jan 19 $10,996 $11,571 Feb 19 $11,431 $11,797 Mar 19 $11,442 $11,868 Apr 19 $11,920 $12,181 May 19 $11,246 $11,527 Jun 19 $11,866 $12,222 Jul 19 $11,905 $12,074 Aug 19 $11,611 $11,701 Sep 19 $11,840 $12,002 Oct 19 $12,395 $12,421 Nov 19 $12,612 $12,530 Dec 19 $13,220 $13,073 Jan 20 $13,011 $12,722 Feb 20 $12,131 $11,716 Mar 20 $9,844 $10,020 Apr 20 $10,779 $10,779 May 20 $11,779 $11,132 Jun 20 $12,505 $11,635 Jul 20 $12,993 $12,153 Aug 20 $13,755 $12,674 Sep 20 $13,464 $12,362 Oct 20 $13,251 $12,096 Nov 20 $14,998 $13,724 Dec 20 $16,039 $14,465 Jan 21 $16,062 $14,497 Feb 21 $17,096 $14,784 Mar 21 $17,489 $14,971 Apr 21 $18,074 $15,411 May 21 $18,388 $15,893 Jun 21 $18,321 $15,790 Jul 21 $17,948 $15,530 Aug 21 $18,328 $15,825 Sep 21 $17,994 $15,319 Oct 21 $18,501 $15,684 Nov 21 $17,141 $14,978 Dec 21 $17,431 $15,597 Jan 22 $16,536 $15,022 Feb 22 $15,699 $14,725 Mar 22 $15,567 $14,748 Apr 22 $14,276 $13,822 May 22 $14,173 $13,922 Jun 22 $12,633 $12,724 Jul 22 $13,289 $13,160 Aug 22 $12,283 $12,736 Sep 22 $10,988 $11,464 Oct 22 $11,719 $11,806 Nov 22 $13,441 $13,200 Dec 22 $13,140 $13,101 Jan 23 $14,615 $14,164 Feb 23 $14,046 $13,666 Mar 23 $14,446 $14,001 Apr 23 $14,753 $14,244 May 23 $14,046 $13,726 Jun 23 $14,861 $14,342 Jul 23 $15,368 $14,925 Aug 23 $14,815 $14,251 Sep 23 $13,923 $13,801 Oct 23 $13,355 $13,231 Nov 23 $14,815 $14,422 Dec 23 $15,639 $15,147 Jan 24 $15,267 $14,996 Feb 24 $15,484 $15,376 Mar 24 $16,166 $15,857 Apr 24 $15,484 $15,572 May 24 $16,166 $16,024 Jun 24 $15,949 $16,009 Jul 24 $16,140 $16,379 Aug 24 $16,543 $16,846 Sep 24 $16,481 $17,300 Oct 24 $15,674 $16,451 Nov 24 $16,016 $16,302 Dec 24 $15,697 $15,985 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.37 % 3.49 % 4.61 % MSCI ACWI ex USA Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.53 4.10 4.80 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 74,007,062 |
| Holdings Count | Holding | 33 |
| Advisory Fees Paid, Amount | $ 483,953 |
| InvestmentCompanyPortfolioTurnover | 61% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $74,007,062 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $483,953 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 61% |
| Holdings [Text Block] | Geographic allocation Country/Geographic Region Percent of Net Assets United States ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.4 % United Kingdom ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.2 Japan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.7 Germany ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.4 Canada ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.4 France ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 China ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 Taiwan ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.2 Denmark ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Switzerland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Other Footnote Reference (a) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.6 ) Footnote Description Footnote (a) Ten largest countries/geographic regions are presented. Additional countries/geographic regions are found in Other. |
| C000007908 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Large Cap Focus Growth V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | LGGGI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Large Cap Focus Growth V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $91 0.78% |
| Expenses Paid, Amount | $ 91 |
| Expense Ratio, Percent | 0.78% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 31.71%. For the same period, the Russell 1000 ® ® What contributed to performance? Stock selection in the information technology, communication services, and consumer discretionary sectors contributed to absolute performance. In all three sectors, the leading individual contributors were mega-cap, technology-related stocks that led the broader market higher in 2024. What detracted from performance? Stock selection in the real estate and energy sectors detracted from performance. While no other sectors detracted from absolute performance, the Fund lagged in the IT services industry largely due to a position in a provider of a cloud-based, software-as-a-service platform for global enterprises. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,652 $9,725 $9,847 Feb 15 $10,277 $10,287 $10,503 Mar 15 $10,149 $10,159 $10,384 Apr 15 $10,149 $10,231 $10,436 May 15 $10,277 $10,365 $10,583 Jun 15 $10,107 $10,171 $10,396 Jul 15 $10,366 $10,367 $10,749 Aug 15 $9,785 $9,743 $10,096 Sep 15 $9,542 $9,476 $9,846 Oct 15 $10,416 $10,243 $10,694 Nov 15 $10,401 $10,277 $10,724 Dec 15 $10,273 $10,092 $10,567 Jan 16 $9,683 $9,549 $9,977 Feb 16 $9,668 $9,545 $9,973 Mar 16 $10,326 $10,210 $10,645 Apr 16 $10,099 $10,266 $10,548 May 16 $10,333 $10,446 $10,753 Jun 16 $10,167 $10,469 $10,711 Jul 16 $10,657 $10,868 $11,216 Aug 16 $10,687 $10,882 $11,160 Sep 16 $10,710 $10,891 $11,201 Oct 16 $10,513 $10,679 $10,938 Nov 16 $10,922 $11,100 $11,176 Dec 16 $11,083 $11,308 $11,314 Jan 17 $11,431 $11,536 $11,696 Feb 17 $12,037 $11,982 $12,182 Mar 17 $12,120 $11,990 $12,322 Apr 17 $12,428 $12,116 $12,604 May 17 $12,668 $12,271 $12,932 Jun 17 $12,710 $12,357 $12,898 Jul 17 $13,245 $12,601 $13,241 Aug 17 $13,354 $12,641 $13,483 Sep 17 $13,362 $12,910 $13,659 Oct 17 $14,007 $13,206 $14,188 Nov 17 $14,250 $13,609 $14,619 Dec 17 $14,358 $13,761 $14,733 Jan 18 $15,892 $14,516 $15,776 Feb 18 $15,585 $13,983 $15,363 Mar 18 $15,229 $13,666 $14,941 Apr 18 $15,576 $13,712 $14,994 May 18 $16,239 $14,062 $15,651 Jun 18 $16,545 $14,153 $15,801 Jul 18 $16,694 $14,642 $16,265 Aug 18 $17,430 $15,146 $17,155 Sep 18 $17,531 $15,204 $17,251 Oct 18 $15,686 $14,128 $15,708 Nov 18 $16,150 $14,415 $15,875 Dec 18 $14,791 $13,102 $14,510 Jan 19 $16,324 $14,200 $15,814 Feb 19 $16,823 $14,681 $16,380 Mar 19 $17,334 $14,937 $16,846 Apr 19 $18,145 $15,540 $17,607 May 19 $17,356 $14,550 $16,495 Jun 19 $18,444 $15,571 $17,628 Jul 19 $18,590 $15,813 $18,026 Aug 19 $18,378 $15,523 $17,888 Sep 19 $17,888 $15,792 $17,890 Oct 19 $18,245 $16,127 $18,394 Nov 19 $19,170 $16,736 $19,210 Dec 19 $19,628 $17,220 $19,790 Jan 20 $20,602 $17,238 $20,232 Feb 20 $19,393 $15,830 $18,854 Mar 20 $17,543 $13,738 $17,000 Apr 20 $20,084 $15,553 $19,515 May 20 $21,713 $16,374 $20,825 Jun 20 $22,786 $16,736 $21,732 Jul 20 $24,282 $17,716 $23,404 Aug 20 $26,328 $19,016 $25,819 Sep 20 $25,455 $18,321 $24,604 Oct 20 $24,806 $17,879 $23,769 Nov 20 $26,964 $19,985 $26,203 Dec 20 $28,213 $20,830 $27,408 Jan 21 $27,481 $20,658 $27,205 Feb 21 $28,083 $21,257 $27,199 Mar 21 $27,952 $22,061 $27,666 Apr 21 $30,070 $23,249 $29,548 May 21 $29,482 $23,359 $29,140 Jun 21 $31,534 $23,944 $30,968 Jul 21 $32,589 $24,442 $31,988 Aug 21 $33,698 $25,149 $33,184 Sep 21 $31,737 $23,994 $31,326 Oct 21 $33,793 $25,659 $34,039 Nov 21 $33,265 $25,315 $34,247 Dec 21 $33,316 $26,340 $34,971 Jan 22 $29,255 $24,855 $31,970 Feb 22 $28,125 $24,173 $30,612 Mar 22 $28,736 $24,989 $31,809 Apr 22 $24,690 $22,761 $27,968 May 22 $24,216 $22,727 $27,318 Jun 22 $22,186 $20,823 $25,154 Jul 22 $25,120 $22,763 $28,173 Aug 22 $23,299 $21,889 $26,861 Sep 22 $20,828 $19,863 $24,249 Oct 22 $21,624 $21,456 $25,667 Nov 22 $22,649 $22,617 $26,836 Dec 22 $20,621 $21,302 $24,782 Jan 23 $23,013 $22,730 $26,847 Feb 23 $22,671 $22,189 $26,528 Mar 23 $24,527 $22,891 $28,342 Apr 23 $25,031 $23,175 $28,621 May 23 $26,464 $23,283 $29,926 Jun 23 $28,270 $24,855 $31,972 Jul 23 $28,882 $25,710 $33,050 Aug 23 $28,980 $25,260 $32,753 Sep 23 $27,254 $24,073 $30,972 Oct 23 $26,945 $23,491 $30,531 Nov 23 $30,299 $25,685 $33,859 Dec 23 $31,520 $26,953 $35,358 Jan 24 $32,730 $27,329 $36,240 Feb 24 $35,133 $28,805 $38,713 Mar 24 $35,829 $29,728 $39,394 Apr 24 $34,089 $28,463 $37,723 May 24 $36,127 $29,804 $39,981 Jun 24 $38,580 $30,790 $42,677 Jul 24 $37,508 $31,238 $41,951 Aug 24 $38,381 $31,979 $42,825 Sep 24 $39,120 $32,663 $44,038 Oct 24 $38,818 $32,434 $43,893 Nov 24 $41,203 $34,522 $46,740 Dec 24 $41,514 $33,560 $47,152 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 31.71 % 16.16 % 15.30 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.36 18.96 16.78 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 274,517,494 |
| Holdings Count | Holding | 38 |
| Advisory Fees Paid, Amount | $ 1,688,948 |
| InvestmentCompanyPortfolioTurnover | 27% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $274,517,494 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,688,948 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.2 % Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.4 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.1 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007910 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Large Cap Focus Growth V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | LGIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Large Cap Focus Growth V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $120 1.03% |
| Expenses Paid, Amount | $ 120 |
| Expense Ratio, Percent | 1.03% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 31.39%. For the same period, the Russell 1000 ® ® What contributed to performance? Stock selection in the information technology, communication services, and consumer discretionary sectors contributed to absolute performance. In all three sectors, the leading individual contributors were mega-cap, technology-related stocks that led the broader market higher in 2024. What detracted from performance? Stock selection in the real estate and energy sectors detracted from performance. While no other sectors detracted from absolute performance, the Fund lagged in the IT services industry largely due to a position in a provider of a cloud-based, software-as-a-service platform for global enterprises. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 1000 ® Russell 1000 ® Jan 15 $9,650 $9,725 $9,847 Feb 15 $10,272 $10,287 $10,503 Mar 15 $10,143 $10,159 $10,384 Apr 15 $10,143 $10,231 $10,436 May 15 $10,264 $10,365 $10,583 Jun 15 $10,093 $10,171 $10,396 Jul 15 $10,346 $10,367 $10,749 Aug 15 $9,770 $9,743 $10,096 Sep 15 $9,517 $9,476 $9,846 Oct 15 $10,390 $10,243 $10,694 Nov 15 $10,375 $10,277 $10,724 Dec 15 $10,251 $10,092 $10,567 Jan 16 $9,659 $9,549 $9,977 Feb 16 $9,644 $9,545 $9,973 Mar 16 $10,289 $10,210 $10,645 Apr 16 $10,069 $10,266 $10,548 May 16 $10,289 $10,446 $10,753 Jun 16 $10,122 $10,469 $10,711 Jul 16 $10,615 $10,868 $11,216 Aug 16 $10,637 $10,882 $11,160 Sep 16 $10,668 $10,891 $11,201 Oct 16 $10,462 $10,679 $10,938 Nov 16 $10,865 $11,100 $11,176 Dec 16 $11,025 $11,308 $11,314 Jan 17 $11,374 $11,536 $11,696 Feb 17 $11,966 $11,982 $12,182 Mar 17 $12,049 $11,990 $12,322 Apr 17 $12,349 $12,116 $12,604 May 17 $12,590 $12,271 $12,932 Jun 17 $12,623 $12,357 $12,898 Jul 17 $13,160 $12,601 $13,241 Aug 17 $13,261 $12,641 $13,483 Sep 17 $13,269 $12,910 $13,659 Oct 17 $13,900 $13,206 $14,188 Nov 17 $14,143 $13,609 $14,619 Dec 17 $14,247 $13,761 $14,733 Jan 18 $15,765 $14,516 $15,776 Feb 18 $15,467 $13,983 $15,363 Mar 18 $15,110 $13,666 $14,941 Apr 18 $15,447 $13,712 $14,994 May 18 $16,102 $14,062 $15,651 Jun 18 $16,400 $14,153 $15,801 Jul 18 $16,539 $14,642 $16,265 Aug 18 $17,267 $15,146 $17,155 Sep 18 $17,358 $15,204 $17,251 Oct 18 $15,528 $14,128 $15,708 Nov 18 $15,993 $14,415 $15,875 Dec 18 $14,641 $13,102 $14,510 Jan 19 $16,158 $14,200 $15,814 Feb 19 $16,648 $14,681 $16,380 Mar 19 $17,150 $14,937 $16,846 Apr 19 $17,953 $15,540 $17,607 May 19 $17,172 $14,550 $16,495 Jun 19 $18,243 $15,571 $17,628 Jul 19 $18,367 $15,813 $18,026 Aug 19 $18,165 $15,523 $17,888 Sep 19 $17,684 $15,792 $17,890 Oct 19 $18,031 $16,127 $18,394 Nov 19 $18,938 $16,736 $19,210 Dec 19 $19,375 $17,220 $19,790 Jan 20 $20,343 $17,238 $20,232 Feb 20 $19,139 $15,830 $18,854 Mar 20 $17,302 $13,738 $17,000 Apr 20 $19,822 $15,553 $19,515 May 20 $21,423 $16,374 $20,825 Jun 20 $22,465 $16,736 $21,732 Jul 20 $23,946 $17,716 $23,404 Aug 20 $25,954 $19,016 $25,819 Sep 20 $25,088 $18,321 $24,604 Oct 20 $24,448 $17,879 $23,769 Nov 20 $26,569 $19,985 $26,203 Dec 20 $27,789 $20,830 $27,408 Jan 21 $27,065 $20,658 $27,205 Feb 21 $27,644 $21,257 $27,199 Mar 21 $27,513 $22,061 $27,666 Apr 21 $29,593 $23,249 $29,548 May 21 $29,014 $23,359 $29,140 Jun 21 $31,016 $23,944 $30,968 Jul 21 $32,052 $24,442 $31,988 Aug 21 $33,143 $25,149 $33,184 Sep 21 $31,207 $23,994 $31,326 Oct 21 $33,211 $25,659 $34,039 Nov 21 $32,679 $25,315 $34,247 Dec 21 $32,730 $26,340 $34,971 Jan 22 $28,730 $24,855 $31,970 Feb 22 $27,618 $24,173 $30,612 Mar 22 $28,220 $24,989 $31,809 Apr 22 $24,235 $22,761 $27,968 May 22 $23,772 $22,727 $27,318 Jun 22 $21,779 $20,823 $25,154 Jul 22 $24,639 $22,763 $28,173 Aug 22 $22,859 $21,889 $26,861 Sep 22 $20,437 $19,863 $24,249 Oct 22 $21,211 $21,456 $25,667 Nov 22 $22,200 $22,617 $26,836 Dec 22 $20,210 $21,302 $24,782 Jan 23 $22,553 $22,730 $26,847 Feb 23 $22,207 $22,189 $26,528 Mar 23 $24,021 $22,891 $28,342 Apr 23 $24,516 $23,175 $28,621 May 23 $25,902 $23,283 $29,926 Jun 23 $27,667 $24,855 $31,972 Jul 23 $28,272 $25,710 $33,050 Aug 23 $28,354 $25,260 $32,753 Sep 23 $26,654 $24,073 $30,972 Oct 23 $26,341 $23,491 $30,531 Nov 23 $29,625 $25,685 $33,859 Dec 23 $30,814 $26,953 $35,358 Jan 24 $32,005 $27,329 $36,240 Feb 24 $34,337 $28,805 $38,713 Mar 24 $35,008 $29,728 $39,394 Apr 24 $33,297 $28,463 $37,723 May 24 $35,293 $29,804 $39,981 Jun 24 $37,675 $30,790 $42,677 Jul 24 $36,623 $31,238 $41,951 Aug 24 $37,474 $31,979 $42,825 Sep 24 $38,171 $32,663 $44,038 Oct 24 $37,865 $32,434 $43,893 Nov 24 $40,196 $34,522 $46,740 Dec 24 $40,487 $33,560 $47,152 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 31.39 % 15.88 % 15.01 % Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.51 14.28 12.87 Russell 1000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.36 18.96 16.78 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 274,517,494 |
| Holdings Count | Holding | 38 |
| Advisory Fees Paid, Amount | $ 1,688,948 |
| InvestmentCompanyPortfolioTurnover | 27% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $274,517,494 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,688,948 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.2 % Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.4 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (0.1 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007899 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Managed Volatility V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | AMBLI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Managed Volatility V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $64 0.60% |
| Expenses Paid, Amount | $ 64 |
| Expense Ratio, Percent | 0.60% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 11.99%. For the same period, the MSCI All Country World Index returned 17.49% and the ICE BofA 3-Month U.S. Treasury Bill Index returned 5.25%. What contributed to performance? The Fund’s equity and fixed income positioning each contributed to absolute returns during the reporting period. A directional overweight in equities, which the Fund held for the majority of the year, contributed positively. A directional long in U.S. equities performed particularly well. Relative value equity positions were also additive, driven by a long in Japan and Italy versus shorts in Australia and South Korea through the first three quarters of the year. Industry positioning in equities also added value. In the emerging markets, a long in Taiwan and shorts in Brazil and South Africa were additive later in the year. Fixed-income positioning contributed, primarily due to tactical short positions. A short position in the United States added value, as strength in U.S. growth and the prospect of increased fiscal deficits under the Trump administration fueled a sell-off in the bond market late in the year. Relative value fixed-income positioning was also additive in late 2024, as the Fund was positioned long in German Bunds versus a short in U.S. Treasuries. U.S. yields continued to move up more than their global peers given the country’s strong economy, while growth in the core of the Eurozone remained relatively weak. Positioning in the emerging markets further contributed, with the Fund benefiting from a long in China versus a short in Brazil. The Fund held an allocation to cash as collateral for derivative positions and as a means of earning a modest yield. The cash position was additive to performance over the period. The Fund was not in a defensive investment position. What detracted from performance? Active currency positioning detracted from absolute performance. The Fund was positioned short in the U.S. Dollar versus a basket of developed market currencies, which was a negative at a time of Dollar strength. Derivatives are used by the investment adviser as an efficient means to take active views on interest rates, equity indices, and currencies in the Fund. During the period, the use of derivatives instead of physical instruments detracted minimally from performance. The Fund did not hold private investments during the period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares MSCI All Country World Index ICE BofA 3-Month U.S. Treasury Bill Index FTSE WGBI (hedged into USD) 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) Jan 15 $10,007 $9,844 $10,000 $10,203 $10,024 Feb 15 $10,336 $10,392 $10,000 $10,127 $10,265 Mar 15 $10,365 $10,231 $10,000 $10,204 $10,224 Apr 15 $10,285 $10,528 $10,001 $10,126 $10,334 May 15 $10,336 $10,514 $10,001 $10,062 $10,294 Jun 15 $10,131 $10,266 $10,001 $9,932 $10,107 Jul 15 $10,221 $10,355 $10,000 $10,058 $10,215 Aug 15 $9,924 $9,646 $10,002 $10,041 $9,856 Sep 15 $9,783 $9,296 $10,002 $10,122 $9,717 Oct 15 $10,095 $10,026 $10,001 $10,149 $10,112 Nov 15 $10,177 $9,943 $10,002 $10,154 $10,072 Dec 15 $9,944 $9,764 $10,005 $10,130 $9,969 Jan 16 $9,799 $9,175 $10,006 $10,335 $9,770 Feb 16 $9,746 $9,112 $10,008 $10,462 $9,796 Mar 16 $9,951 $9,787 $10,013 $10,517 $10,185 Apr 16 $9,921 $9,931 $10,015 $10,498 $10,251 May 16 $9,974 $9,944 $10,016 $10,561 $10,288 Jun 16 $9,898 $9,884 $10,020 $10,810 $10,378 Jul 16 $9,936 $10,310 $10,023 $10,848 $10,620 Aug 16 $9,989 $10,344 $10,025 $10,813 $10,621 Sep 16 $9,997 $10,408 $10,030 $10,807 $10,650 Oct 16 $10,027 $10,231 $10,032 $10,666 $10,491 Nov 16 $10,096 $10,309 $10,034 $10,488 $10,443 Dec 16 $10,113 $10,531 $10,038 $10,510 $10,567 Jan 17 $10,121 $10,819 $10,042 $10,430 $10,671 Feb 17 $10,136 $11,123 $10,047 $10,522 $10,868 Mar 17 $10,174 $11,259 $10,048 $10,510 $10,928 Apr 17 $10,259 $11,434 $10,055 $10,579 $11,049 May 17 $10,335 $11,687 $10,060 $10,634 $11,200 Jun 17 $10,366 $11,740 $10,069 $10,594 $11,204 Jul 17 $10,364 $12,068 $10,077 $10,616 $11,372 Aug 17 $10,333 $12,114 $10,087 $10,724 $11,452 Sep 17 $10,395 $12,348 $10,095 $10,656 $11,526 Oct 17 $10,511 $12,605 $10,104 $10,704 $11,672 Nov 17 $10,588 $12,849 $10,113 $10,731 $11,799 Dec 17 $10,617 $13,056 $10,124 $10,735 $11,897 Jan 18 $10,694 $13,793 $10,136 $10,662 $12,192 Feb 18 $10,632 $13,213 $10,146 $10,667 $11,939 Mar 18 $10,640 $12,931 $10,160 $10,798 $11,884 Apr 18 $10,686 $13,054 $10,173 $10,755 $11,918 May 18 $10,733 $13,070 $10,189 $10,778 $11,937 Jun 18 $10,741 $13,000 $10,206 $10,819 $11,928 Jul 18 $10,819 $13,392 $10,222 $10,795 $12,094 Aug 18 $10,687 $13,497 $10,240 $10,807 $12,149 Sep 18 $10,943 $13,555 $10,256 $10,758 $12,148 Oct 18 $10,865 $12,540 $10,274 $10,758 $11,693 Nov 18 $10,834 $12,723 $10,295 $10,832 $11,818 Dec 18 $10,725 $11,827 $10,314 $11,014 $11,501 Jan 19 $10,964 $12,761 $10,334 $11,112 $12,007 Feb 19 $10,860 $13,102 $10,352 $11,103 $12,162 Mar 19 $10,868 $13,267 $10,376 $11,315 $12,355 Apr 19 $10,845 $13,715 $10,395 $11,296 $12,553 May 19 $10,653 $12,901 $10,419 $11,499 $12,294 Jun 19 $10,765 $13,746 $10,442 $11,665 $12,785 Jul 19 $10,748 $13,786 $10,461 $11,756 $12,853 Aug 19 $10,564 $13,459 $10,482 $12,096 $12,887 Sep 19 $10,748 $13,742 $10,501 $12,023 $12,984 Oct 19 $10,955 $14,119 $10,521 $11,972 $13,133 Nov 19 $10,995 $14,463 $10,534 $11,923 $13,267 Dec 19 $10,943 $14,973 $10,549 $11,850 $13,460 Jan 20 $11,083 $14,807 $10,563 $12,119 $13,538 Feb 20 $10,968 $13,611 $10,579 $12,312 $13,099 Mar 20 $10,893 $11,774 $10,610 $12,321 $12,220 Apr 20 $10,761 $13,035 $10,610 $12,432 $12,930 May 20 $10,968 $13,602 $10,611 $12,416 $13,202 Jun 20 $10,926 $14,036 $10,612 $12,452 $13,433 Jul 20 $10,940 $14,779 $10,614 $12,576 $13,855 Aug 20 $10,965 $15,683 $10,615 $12,448 $14,208 Sep 20 $10,873 $15,178 $10,616 $12,542 $14,032 Oct 20 $10,965 $14,809 $10,617 $12,534 $13,857 Nov 20 $11,298 $16,634 $10,618 $12,557 $14,725 Dec 20 $11,334 $17,406 $10,619 $12,574 $15,076 Jan 21 $11,256 $17,327 $10,620 $12,481 $14,986 Feb 21 $11,042 $17,729 $10,621 $12,211 $14,997 Mar 21 $11,205 $18,202 $10,622 $12,187 $15,183 Apr 21 $11,377 $18,998 $10,622 $12,188 $15,516 May 21 $11,488 $19,294 $10,622 $12,210 $15,651 Jun 21 $11,342 $19,548 $10,622 $12,277 $15,797 Jul 21 $11,256 $19,682 $10,623 $12,461 $15,969 Aug 21 $11,342 $20,175 $10,623 $12,423 $16,145 Sep 21 $11,575 $19,342 $10,624 $12,276 $15,716 Oct 21 $11,048 $20,329 $10,623 $12,253 $16,102 Nov 21 $11,135 $19,839 $10,624 $12,399 $16,004 Dec 21 $11,411 $20,633 $10,625 $12,286 $16,251 Jan 22 $11,394 $19,620 $10,624 $12,104 $15,732 Feb 22 $11,178 $19,113 $10,626 $11,964 $15,438 Mar 22 $11,273 $19,527 $10,629 $11,697 $15,433 Apr 22 $11,411 $17,964 $10,631 $11,381 $14,606 May 22 $11,402 $17,985 $10,638 $11,304 $14,566 Jun 22 $11,195 $16,469 $10,641 $11,170 $13,866 Jul 22 $11,126 $17,619 $10,646 $11,432 $14,512 Aug 22 $11,437 $16,970 $10,664 $11,089 $14,028 Sep 22 $11,446 $15,346 $10,691 $10,742 $13,136 Oct 22 $11,636 $16,272 $10,707 $10,704 $13,509 Nov 22 $11,774 $17,534 $10,742 $10,933 $14,178 Dec 22 $12,119 $16,844 $10,781 $10,706 $13,752 Jan 23 $11,929 $18,051 $10,815 $10,947 $14,399 Feb 23 $12,059 $17,534 $10,850 $10,773 $14,079 Mar 23 $11,947 $18,075 $10,897 $11,064 $14,486 Apr 23 $12,102 $18,334 $10,931 $11,102 $14,615 May 23 $12,154 $18,138 $10,974 $11,053 $14,504 Jun 23 $12,404 $19,191 $11,024 $11,024 $14,907 Jul 23 $12,525 $19,894 $11,068 $10,990 $15,156 Aug 23 $12,552 $19,338 $11,118 $10,972 $14,932 Sep 23 $12,770 $18,538 $11,169 $10,767 $14,484 Oct 23 $12,692 $17,981 $11,219 $10,704 $14,224 Nov 23 $12,762 $19,640 $11,269 $11,044 $15,106 Dec 23 $12,507 $20,584 $11,322 $11,393 $15,708 Jan 24 $12,922 $20,704 $11,370 $11,356 $15,728 Feb 24 $13,243 $21,593 $11,416 $11,273 $16,008 Mar 24 $13,384 $22,271 $11,468 $11,359 $16,320 Apr 24 $13,347 $21,536 $11,517 $11,172 $15,917 May 24 $13,422 $22,411 $11,572 $11,236 $16,286 Jun 24 $13,450 $22,910 $11,619 $11,328 $16,534 Jul 24 $13,252 $23,279 $11,671 $11,548 $16,828 Aug 24 $13,394 $23,870 $11,727 $11,666 $17,127 Sep 24 $13,375 $24,425 $11,778 $11,793 $17,419 Oct 24 $13,564 $23,877 $11,823 $11,628 $17,102 Nov 24 $14,055 $24,770 $11,868 $11,768 $17,525 Dec 24 $14,007 $24,183 $11,916 $11,664 $17,240 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.99 % 5.06 % 3.43 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.49 10.06 9.23 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.25 2.47 1.77 FTSE WGBI (hedged into USD) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.38 (0.32 ) 1.55 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.76 5.07 5.60 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 161,709,176 |
| Holdings Count | Holding | 959 |
| Advisory Fees Paid, Amount | $ 531,641 |
| InvestmentCompanyPortfolioTurnover | 137% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $161,709,176 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 959 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $531,641 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 137% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.9 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.2 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.4 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007901 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Managed Volatility V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | ABIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Managed Volatility V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $90 0.85% |
| Expenses Paid, Amount | $ 90 |
| Expense Ratio, Percent | 0.85% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 11.75%. For the same period, the MSCI All Country World Index returned 17.49% and the ICE BofA 3-Month U.S. Treasury Bill Index returned 5.25%. What contributed to performance? The Fund’s equity and fixed income positioning each contributed to absolute returns during the reporting period. A directional overweight in equities, which the Fund held for the majority of the year, contributed positively. A directional long in U.S. equities performed particularly well. Relative value equity positions were also additive, driven by a long in Japan and Italy versus shorts in Australia and South Korea through the first three quarters of the year. Industry positioning in equities also added value. In the emerging markets, a long in Taiwan and shorts in Brazil and South Africa were additive later in the year. Fixed-income positioning contributed, primarily due to tactical short positions. A short position in the United States added value, as strength in U.S. growth and the prospect of increased fiscal deficits under the Trump administration fueled a sell-off in the bond market late in the year. Relative value fixed-income positioning was also additive in late 2024, as the Fund was positioned long in German Bunds versus a short in U.S. Treasuries. U.S. yields continued to move up more than their global peers given the country’s strong economy, while growth in the core of the Eurozone remained relatively weak. Positioning in the emerging markets further contributed, with the Fund benefiting from a long in China versus a short in Brazil. The Fund held an allocation to cash as collateral for derivative positions and as a means of earning a modest yield. The cash position was additive to performance over the period. The Fund was not in a defensive investment position. What detracted from performance? Active currency positioning detracted from absolute performance. The Fund was positioned short in the U.S. Dollar versus a basket of developed market currencies, which was a negative at a time of Dollar strength. Derivatives are used by the investment adviser as an efficient means to take active views on interest rates, equity indices, and currencies in the Fund. During the period, the use of derivatives instead of physical instruments detracted minimally from performance. The Fund did not hold private investments during the period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares MSCI All Country World Index ICE BofA 3-Month U.S. Treasury Bill Index FTSE WGBI (hedged into USD) 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) Jan 15 $10,005 $9,844 $10,000 $10,203 $10,024 Feb 15 $10,332 $10,392 $10,000 $10,127 $10,265 Mar 15 $10,359 $10,231 $10,000 $10,204 $10,224 Apr 15 $10,276 $10,528 $10,001 $10,126 $10,334 May 15 $10,325 $10,514 $10,001 $10,062 $10,294 Jun 15 $10,119 $10,266 $10,001 $9,932 $10,107 Jul 15 $10,206 $10,355 $10,000 $10,058 $10,215 Aug 15 $9,908 $9,646 $10,002 $10,041 $9,856 Sep 15 $9,765 $9,296 $10,002 $10,122 $9,717 Oct 15 $10,074 $10,026 $10,001 $10,149 $10,112 Nov 15 $10,153 $9,943 $10,002 $10,154 $10,072 Dec 15 $9,919 $9,764 $10,005 $10,130 $9,969 Jan 16 $9,773 $9,175 $10,006 $10,335 $9,770 Feb 16 $9,718 $9,112 $10,008 $10,462 $9,796 Mar 16 $9,920 $9,787 $10,013 $10,517 $10,185 Apr 16 $9,888 $9,931 $10,015 $10,498 $10,251 May 16 $9,939 $9,944 $10,016 $10,561 $10,288 Jun 16 $9,861 $9,884 $10,020 $10,810 $10,378 Jul 16 $9,897 $10,310 $10,023 $10,848 $10,620 Aug 16 $9,948 $10,344 $10,025 $10,813 $10,621 Sep 16 $9,953 $10,408 $10,030 $10,807 $10,650 Oct 16 $9,981 $10,231 $10,032 $10,666 $10,491 Nov 16 $10,047 $10,309 $10,034 $10,488 $10,443 Dec 16 $10,063 $10,531 $10,038 $10,510 $10,567 Jan 17 $10,068 $10,819 $10,042 $10,430 $10,671 Feb 17 $10,082 $11,123 $10,047 $10,522 $10,868 Mar 17 $10,117 $11,259 $10,048 $10,510 $10,928 Apr 17 $10,199 $11,434 $10,055 $10,579 $11,049 May 17 $10,273 $11,687 $10,060 $10,634 $11,200 Jun 17 $10,302 $11,740 $10,069 $10,594 $11,204 Jul 17 $10,297 $12,068 $10,077 $10,616 $11,372 Aug 17 $10,265 $12,114 $10,087 $10,724 $11,452 Sep 17 $10,324 $12,348 $10,095 $10,656 $11,526 Oct 17 $10,437 $12,605 $10,104 $10,704 $11,672 Nov 17 $10,511 $12,849 $10,113 $10,731 $11,799 Dec 17 $10,537 $13,056 $10,124 $10,735 $11,897 Jan 18 $10,612 $13,793 $10,136 $10,662 $12,192 Feb 18 $10,549 $13,213 $10,146 $10,667 $11,939 Mar 18 $10,557 $12,931 $10,160 $10,798 $11,884 Apr 18 $10,603 $13,054 $10,173 $10,755 $11,918 May 18 $10,649 $13,070 $10,189 $10,778 $11,937 Jun 18 $10,649 $13,000 $10,206 $10,819 $11,928 Jul 18 $10,727 $13,392 $10,222 $10,795 $12,094 Aug 18 $10,589 $13,497 $10,240 $10,807 $12,149 Sep 18 $10,842 $13,555 $10,256 $10,758 $12,148 Oct 18 $10,765 $12,540 $10,274 $10,758 $11,693 Nov 18 $10,727 $12,723 $10,295 $10,832 $11,818 Dec 18 $10,614 $11,827 $10,314 $11,014 $11,501 Jan 19 $10,851 $12,761 $10,334 $11,112 $12,007 Feb 19 $10,748 $13,102 $10,352 $11,103 $12,162 Mar 19 $10,756 $13,267 $10,376 $11,315 $12,355 Apr 19 $10,724 $13,715 $10,395 $11,296 $12,553 May 19 $10,535 $12,901 $10,419 $11,499 $12,294 Jun 19 $10,645 $13,746 $10,442 $11,665 $12,785 Jul 19 $10,628 $13,786 $10,461 $11,756 $12,853 Aug 19 $10,439 $13,459 $10,482 $12,096 $12,887 Sep 19 $10,621 $13,742 $10,501 $12,023 $12,984 Oct 19 $10,826 $14,119 $10,521 $11,972 $13,133 Nov 19 $10,858 $14,463 $10,534 $11,923 $13,267 Dec 19 $10,810 $14,973 $10,549 $11,850 $13,460 Jan 20 $10,940 $14,807 $10,563 $12,119 $13,538 Feb 20 $10,834 $13,611 $10,579 $12,312 $13,099 Mar 20 $10,753 $11,774 $10,610 $12,321 $12,220 Apr 20 $10,622 $13,035 $10,610 $12,432 $12,930 May 20 $10,826 $13,602 $10,611 $12,416 $13,202 Jun 20 $10,777 $14,036 $10,612 $12,452 $13,433 Jul 20 $10,790 $14,779 $10,614 $12,576 $13,855 Aug 20 $10,815 $15,683 $10,615 $12,448 $14,208 Sep 20 $10,716 $15,178 $10,616 $12,542 $14,032 Oct 20 $10,807 $14,809 $10,617 $12,534 $13,857 Nov 20 $11,136 $16,634 $10,618 $12,557 $14,725 Dec 20 $11,161 $17,406 $10,619 $12,574 $15,076 Jan 21 $11,093 $17,327 $10,620 $12,481 $14,986 Feb 21 $10,882 $17,729 $10,621 $12,211 $14,997 Mar 21 $11,034 $18,202 $10,622 $12,187 $15,183 Apr 21 $11,203 $18,998 $10,622 $12,188 $15,516 May 21 $11,304 $19,294 $10,622 $12,210 $15,651 Jun 21 $11,161 $19,548 $10,622 $12,277 $15,797 Jul 21 $11,067 $19,682 $10,623 $12,461 $15,969 Aug 21 $11,152 $20,175 $10,623 $12,423 $16,145 Sep 21 $11,382 $19,342 $10,624 $12,276 $15,716 Oct 21 $10,862 $20,329 $10,623 $12,253 $16,102 Nov 21 $10,947 $19,839 $10,624 $12,399 $16,004 Dec 21 $11,220 $20,633 $10,625 $12,286 $16,251 Jan 22 $11,203 $19,620 $10,624 $12,104 $15,732 Feb 22 $10,982 $19,113 $10,626 $11,964 $15,438 Mar 22 $11,067 $19,527 $10,629 $11,697 $15,433 Apr 22 $11,203 $17,964 $10,631 $11,381 $14,606 May 22 $11,194 $17,985 $10,638 $11,304 $14,566 Jun 22 $10,990 $16,469 $10,641 $11,170 $13,866 Jul 22 $10,922 $17,619 $10,646 $11,432 $14,512 Aug 22 $11,220 $16,970 $10,664 $11,089 $14,028 Sep 22 $11,228 $15,346 $10,691 $10,742 $13,136 Oct 22 $11,407 $16,272 $10,707 $10,704 $13,509 Nov 22 $11,543 $17,534 $10,742 $10,933 $14,178 Dec 22 $11,884 $16,844 $10,781 $10,706 $13,752 Jan 23 $11,697 $18,051 $10,815 $10,947 $14,399 Feb 23 $11,816 $17,534 $10,850 $10,773 $14,079 Mar 23 $11,705 $18,075 $10,897 $11,064 $14,486 Apr 23 $11,858 $18,334 $10,931 $11,102 $14,615 May 23 $11,909 $18,138 $10,974 $11,053 $14,504 Jun 23 $12,139 $19,191 $11,024 $11,024 $14,907 Jul 23 $12,259 $19,894 $11,068 $10,990 $15,156 Aug 23 $12,285 $19,338 $11,118 $10,972 $14,932 Sep 23 $12,500 $18,538 $11,169 $10,767 $14,484 Oct 23 $12,423 $17,981 $11,219 $10,704 $14,224 Nov 23 $12,474 $19,640 $11,269 $11,044 $15,106 Dec 23 $12,226 $20,584 $11,322 $11,393 $15,708 Jan 24 $12,634 $20,704 $11,370 $11,356 $15,728 Feb 24 $12,939 $21,593 $11,416 $11,273 $16,008 Mar 24 $13,087 $22,271 $11,468 $11,359 $16,320 Apr 24 $13,041 $21,536 $11,517 $11,172 $15,917 May 24 $13,115 $22,411 $11,572 $11,236 $16,286 Jun 24 $13,143 $22,910 $11,619 $11,328 $16,534 Jul 24 $12,939 $23,279 $11,671 $11,548 $16,828 Aug 24 $13,078 $23,870 $11,727 $11,666 $17,127 Sep 24 $13,050 $24,425 $11,778 $11,793 $17,419 Oct 24 $13,244 $23,877 $11,823 $11,628 $17,102 Nov 24 $13,716 $24,770 $11,868 $11,768 $17,525 Dec 24 $13,662 $24,183 $11,916 $11,664 $17,240 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.75 % 4.80 % 3.17 % MSCI All Country World Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.49 10.06 9.23 ICE BofA 3-Month U.S. Treasury Bill Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.25 2.47 1.77 FTSE WGBI (hedged into USD) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.38 (0.32 ) 1.55 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.76 5.07 5.60 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 161,709,176 |
| Holdings Count | Holding | 959 |
| Advisory Fees Paid, Amount | $ 531,641 |
| InvestmentCompanyPortfolioTurnover | 137% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $161,709,176 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 959 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $531,641 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 137% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.9 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.2 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.4 Other Assets Less Liabilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007902 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock S&P 500 Index V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | IDXVI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock S&P 500 Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $16 0.14% |
| Expenses Paid, Amount | $ 16 |
| Expense Ratio, Percent | 0.14% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 24.83%. For the same period, the S&P 500 ® In 2024, United States (“U.S.”) equity markets experienced significant growth, driven by investor optimism in artificial intelligence related companies and strong earnings reports. The Federal Reserve (“Fed”) maintained interest rates at first as inflation rose in February 2024 and labor market data remained strong, dampening expectations of rate cuts at the beginning of the year. Large-cap equities continued to perform well into the second quarter 2024. The consumer price index (“CPI”) increased by 0.3% in April but remained flat from April to May, while the unemployment rate rose slightly from 3.9% to 4.0%. The Fed kept rates unchanged, leading to a rally in large-cap stocks, though small-cap equities lagged due to reduced rate cut expectations in the second quarter. The third quarter of 2024 saw a mixture of optimism and caution. A weaker CPI in July extended the bull market, but a disappointing jobs report in August raised concerns about an economic slowdown. Market volatility increased due to geopolitical risks and U.S. Presidential Election developments. The Fed cut rates by 50 basis points in September 2024, boosting equity markets to new highs. In the fourth quarter of 2024, U.S. equities remained positive despite sell-offs in October and December. A strong November rally followed Donald Trump's reelection, benefiting sectors aligned with his economic agenda. The Fed cut rates by 50 basis points across November and December, while still aiming to achieve it's goal of reducing inflation to it's 2% target. The Federal Open Market Committee revised its 2025 rate cut projections from four to two, causing a December selloff as investors adjusted to expectations of persistent inflation. Labor market conditions eased, with unemployment at 4.2% in November 2024. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares S&P 500 ® Jan 15 $9,695 $9,700 Feb 15 $10,252 $10,257 Mar 15 $10,087 $10,095 Apr 15 $10,179 $10,192 May 15 $10,310 $10,323 Jun 15 $10,107 $10,123 Jul 15 $10,314 $10,335 Aug 15 $9,688 $9,712 Sep 15 $9,445 $9,471 Oct 15 $10,237 $10,270 Nov 15 $10,271 $10,301 Dec 15 $10,105 $10,138 Jan 16 $9,602 $9,635 Feb 16 $9,586 $9,622 Mar 16 $10,232 $10,275 Apr 16 $10,269 $10,315 May 16 $10,449 $10,500 Jun 16 $10,471 $10,527 Jul 16 $10,858 $10,915 Aug 16 $10,868 $10,931 Sep 16 $10,868 $10,933 Oct 16 $10,671 $10,733 Nov 16 $11,060 $11,131 Dec 16 $11,277 $11,351 Jan 17 $11,487 $11,566 Feb 17 $11,940 $12,025 Mar 17 $11,951 $12,039 Apr 17 $12,070 $12,163 May 17 $12,240 $12,334 Jun 17 $12,314 $12,411 Jul 17 $12,561 $12,666 Aug 17 $12,595 $12,705 Sep 17 $12,856 $12,967 Oct 17 $13,151 $13,270 Nov 17 $13,553 $13,677 Dec 17 $13,702 $13,829 Jan 18 $14,482 $14,621 Feb 18 $13,942 $14,082 Mar 18 $13,587 $13,724 Apr 18 $13,635 $13,777 May 18 $13,960 $14,108 Jun 18 $14,044 $14,195 Jul 18 $14,568 $14,724 Aug 18 $15,037 $15,203 Sep 18 $15,121 $15,290 Oct 18 $14,087 $14,245 Nov 18 $14,369 $14,535 Dec 18 $13,070 $13,223 Jan 19 $14,122 $14,282 Feb 19 $14,568 $14,741 Mar 19 $14,855 $15,027 Apr 19 $15,454 $15,636 May 19 $14,472 $14,642 Jun 19 $15,493 $15,674 Jul 19 $15,709 $15,899 Aug 19 $15,458 $15,648 Sep 19 $15,748 $15,940 Oct 19 $16,082 $16,286 Nov 19 $16,668 $16,877 Dec 19 $17,166 $17,386 Jan 20 $17,159 $17,379 Feb 20 $15,742 $15,949 Mar 20 $13,794 $13,979 Apr 20 $15,563 $15,771 May 20 $16,299 $16,522 Jun 20 $16,623 $16,850 Jul 20 $17,559 $17,801 Aug 20 $18,820 $19,080 Sep 20 $18,102 $18,355 Oct 20 $17,621 $17,867 Nov 20 $19,545 $19,823 Dec 20 $20,297 $20,585 Jan 21 $20,089 $20,377 Feb 21 $20,640 $20,939 Mar 21 $21,540 $21,856 Apr 21 $22,693 $23,022 May 21 $22,850 $23,183 Jun 21 $23,378 $23,724 Jul 21 $23,929 $24,288 Aug 21 $24,655 $25,026 Sep 21 $23,505 $23,863 Oct 21 $25,147 $25,534 Nov 21 $24,973 $25,357 Dec 21 $26,089 $26,494 Jan 22 $24,738 $25,123 Feb 22 $23,994 $24,371 Mar 22 $24,884 $25,276 Apr 22 $22,708 $23,071 May 22 $22,748 $23,114 Jun 22 $20,871 $21,206 Jul 22 $22,787 $23,161 Aug 22 $21,859 $22,217 Sep 22 $19,840 $20,170 Oct 22 $21,443 $21,804 Nov 22 $22,640 $23,022 Dec 22 $21,333 $21,696 Jan 23 $22,673 $23,059 Feb 23 $22,120 $22,496 Mar 23 $22,924 $23,322 Apr 23 $23,287 $23,686 May 23 $23,382 $23,789 Jun 23 $24,921 $25,361 Jul 23 $25,726 $26,176 Aug 23 $25,309 $25,759 Sep 23 $24,099 $24,531 Oct 23 $23,603 $24,015 Nov 23 $25,752 $26,208 Dec 23 $26,927 $27,399 Jan 24 $27,373 $27,859 Feb 24 $28,828 $29,347 Mar 24 $29,756 $30,291 Apr 24 $28,537 $29,054 May 24 $29,947 $30,494 Jun 24 $31,020 $31,589 Jul 24 $31,389 $31,973 Aug 24 $32,149 $32,749 Sep 24 $32,835 $33,448 Oct 24 $32,533 $33,145 Nov 24 $34,437 $35,090 Dec 24 $33,614 $34,254 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.83 % 14.38 % 12.89 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,850,673,634 |
| Holdings Count | Holding | 506 |
| Advisory Fees Paid, Amount | $ 1,876,629 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,850,673,634 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 506 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,876,629 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.4 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.7 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (7.4 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007903 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock S&P 500 Index V.I. Fund |
| Class Name | Class II Shares |
| Trading Symbol | IXVII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock S&P 500 Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class II Shares $33 0.29% |
| Expenses Paid, Amount | $ 33 |
| Expense Ratio, Percent | 0.29% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class II Shares returned 24.68%. For the same period, the S&P 500 ® In 2024, United States (“U.S.”) equity markets experienced significant growth, driven by investor optimism in artificial intelligence related companies and strong earnings reports. The Federal Reserve (“Fed”) maintained interest rates at first as inflation rose in February 2024 and labor market data remained strong, dampening expectations of rate cuts at the beginning of the year. Large-cap equities continued to perform well into the second quarter 2024. The consumer price index (“CPI”) increased by 0.3% in April but remained flat from April to May, while the unemployment rate rose slightly from 3.9% to 4.0%. The Fed kept rates unchanged, leading to a rally in large-cap stocks, though small-cap equities lagged due to reduced rate cut expectations in the second quarter. The third quarter of 2024 saw a mixture of optimism and caution. A weaker CPI in July extended the bull market, but a disappointing jobs report in August raised concerns about an economic slowdown. Market volatility increased due to geopolitical risks and U.S. Presidential Election developments. The Fed cut rates by 50 basis points in September 2024, boosting equity markets to new highs. In the fourth quarter of 2024, U.S. equities remained positive despite sell-offs in October and December. A strong November rally followed Donald Trump's reelection, benefiting sectors aligned with his economic agenda. The Fed cut rates by 50 basis points across November and December, while still aiming to achieve it's goal of reducing inflation to it's 2% target. The Federal Open Market Committee revised its 2025 rate cut projections from four to two, causing a December selloff as investors adjusted to expectations of persistent inflation. Labor market conditions eased, with unemployment at 4.2% in November 2024. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class II Shares S&P 500 ® Jan 15 $9,693 $9,700 Feb 15 $10,249 $10,257 Mar 15 $10,083 $10,095 Apr 15 $10,176 $10,192 May 15 $10,303 $10,323 Jun 15 $10,098 $10,123 Jul 15 $10,307 $10,335 Aug 15 $9,676 $9,712 Sep 15 $9,432 $9,471 Oct 15 $10,224 $10,270 Nov 15 $10,258 $10,301 Dec 15 $10,089 $10,138 Jan 16 $9,583 $9,635 Feb 16 $9,567 $9,622 Mar 16 $10,212 $10,275 Apr 16 $10,249 $10,315 May 16 $10,430 $10,500 Jun 16 $10,446 $10,527 Jul 16 $10,830 $10,915 Aug 16 $10,841 $10,931 Sep 16 $10,841 $10,933 Oct 16 $10,643 $10,733 Nov 16 $11,034 $11,131 Dec 16 $11,246 $11,351 Jan 17 $11,457 $11,566 Feb 17 $11,907 $12,025 Mar 17 $11,912 $12,039 Apr 17 $12,032 $12,163 May 17 $12,197 $12,334 Jun 17 $12,266 $12,411 Jul 17 $12,514 $12,666 Aug 17 $12,548 $12,705 Sep 17 $12,804 $12,967 Oct 17 $13,101 $13,270 Nov 17 $13,494 $13,677 Dec 17 $13,643 $13,829 Jan 18 $14,415 $14,621 Feb 18 $13,878 $14,082 Mar 18 $13,522 $13,724 Apr 18 $13,571 $13,777 May 18 $13,890 $14,108 Jun 18 $13,974 $14,195 Jul 18 $14,495 $14,724 Aug 18 $14,959 $15,203 Sep 18 $15,044 $15,290 Oct 18 $14,012 $14,245 Nov 18 $14,289 $14,535 Dec 18 $12,996 $13,223 Jan 19 $14,038 $14,282 Feb 19 $14,480 $14,741 Mar 19 $14,761 $15,027 Apr 19 $15,356 $15,636 May 19 $14,377 $14,642 Jun 19 $15,388 $15,674 Jul 19 $15,605 $15,899 Aug 19 $15,353 $15,648 Sep 19 $15,637 $15,940 Oct 19 $15,973 $16,286 Nov 19 $16,547 $16,877 Dec 19 $17,047 $17,386 Jan 20 $17,033 $17,379 Feb 20 $15,625 $15,949 Mar 20 $13,686 $13,979 Apr 20 $15,439 $15,771 May 20 $16,170 $16,522 Jun 20 $16,488 $16,850 Jul 20 $17,420 $17,801 Aug 20 $18,663 $19,080 Sep 20 $17,951 $18,355 Oct 20 $17,469 $17,867 Nov 20 $19,376 $19,823 Dec 20 $20,120 $20,585 Jan 21 $19,911 $20,377 Feb 21 $20,455 $20,939 Mar 21 $21,350 $21,856 Apr 21 $22,484 $23,022 May 21 $22,633 $23,183 Jun 21 $23,155 $23,724 Jul 21 $23,700 $24,288 Aug 21 $24,413 $25,026 Sep 21 $23,275 $23,863 Oct 21 $24,898 $25,534 Nov 21 $24,716 $25,357 Dec 21 $25,823 $26,494 Jan 22 $24,477 $25,123 Feb 22 $23,740 $24,371 Mar 22 $24,615 $25,276 Apr 22 $22,467 $23,071 May 22 $22,500 $23,114 Jun 22 $20,635 $21,206 Jul 22 $22,538 $23,161 Aug 22 $21,608 $22,217 Sep 22 $19,618 $20,170 Oct 22 $21,200 $21,804 Nov 22 $22,383 $23,022 Dec 22 $21,083 $21,696 Jan 23 $22,407 $23,059 Feb 23 $21,853 $22,496 Mar 23 $22,649 $23,322 Apr 23 $22,995 $23,686 May 23 $23,091 $23,789 Jun 23 $24,614 $25,361 Jul 23 $25,403 $26,176 Aug 23 $24,994 $25,759 Sep 23 $23,791 $24,531 Oct 23 $23,295 $24,015 Nov 23 $25,421 $26,208 Dec 23 $26,568 $27,399 Jan 24 $27,005 $27,859 Feb 24 $28,443 $29,347 Mar 24 $29,353 $30,291 Apr 24 $28,143 $29,054 May 24 $29,535 $30,494 Jun 24 $30,582 $31,589 Jul 24 $30,951 $31,973 Aug 24 $31,693 $32,749 Sep 24 $32,361 $33,448 Oct 24 $32,059 $33,145 Nov 24 $33,936 $35,090 Dec 24 $33,124 $34,254 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class II Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.68 % 14.21 % 12.72 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,850,673,634 |
| Holdings Count | Holding | 506 |
| Advisory Fees Paid, Amount | $ 1,876,629 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,850,673,634 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 506 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,876,629 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.4 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.7 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (7.4 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000007904 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock S&P 500 Index V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | IVIII |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock S&P 500 Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $44 0.39% |
| Expenses Paid, Amount | $ 44 |
| Expense Ratio, Percent | 0.39% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 24.52%. For the same period, the S&P 500 ® In 2024, United States (“U.S.”) equity markets experienced significant growth, driven by investor optimism in artificial intelligence related companies and strong earnings reports. The Federal Reserve (“Fed”) maintained interest rates at first as inflation rose in February 2024 and labor market data remained strong, dampening expectations of rate cuts at the beginning of the year. Large-cap equities continued to perform well into the second quarter 2024. The consumer price index (“CPI”) increased by 0.3% in April but remained flat from April to May, while the unemployment rate rose slightly from 3.9% to 4.0%. The Fed kept rates unchanged, leading to a rally in large-cap stocks, though small-cap equities lagged due to reduced rate cut expectations in the second quarter. The third quarter of 2024 saw a mixture of optimism and caution. A weaker CPI in July extended the bull market, but a disappointing jobs report in August raised concerns about an economic slowdown. Market volatility increased due to geopolitical risks and U.S. Presidential Election developments. The Fed cut rates by 50 basis points in September 2024, boosting equity markets to new highs. In the fourth quarter of 2024, U.S. equities remained positive despite sell-offs in October and December. A strong November rally followed Donald Trump's reelection, benefiting sectors aligned with his economic agenda. The Fed cut rates by 50 basis points across November and December, while still aiming to achieve it's goal of reducing inflation to it's 2% target. The Federal Open Market Committee revised its 2025 rate cut projections from four to two, causing a December selloff as investors adjusted to expectations of persistent inflation. Labor market conditions eased, with unemployment at 4.2% in November 2024. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares S&P 500 ® Jan 15 $9,693 $9,700 Feb 15 $10,248 $10,257 Mar 15 $10,081 $10,095 Apr 15 $10,171 $10,192 May 15 $10,300 $10,323 Jun 15 $10,094 $10,123 Jul 15 $10,299 $10,335 Aug 15 $9,672 $9,712 Sep 15 $9,428 $9,471 Oct 15 $10,215 $10,270 Nov 15 $10,247 $10,301 Dec 15 $10,080 $10,138 Jan 16 $9,576 $9,635 Feb 16 $9,558 $9,622 Mar 16 $10,200 $10,275 Apr 16 $10,235 $10,315 May 16 $10,413 $10,500 Jun 16 $10,432 $10,527 Jul 16 $10,815 $10,915 Aug 16 $10,823 $10,931 Sep 16 $10,821 $10,933 Oct 16 $10,622 $10,733 Nov 16 $11,007 $11,131 Dec 16 $11,221 $11,351 Jan 17 $11,427 $11,566 Feb 17 $11,876 $12,025 Mar 17 $11,884 $12,039 Apr 17 $12,000 $12,163 May 17 $12,167 $12,334 Jun 17 $12,237 $12,411 Jul 17 $12,480 $12,666 Aug 17 $12,511 $12,705 Sep 17 $12,768 $12,967 Oct 17 $13,058 $13,270 Nov 17 $13,455 $13,677 Dec 17 $13,599 $13,829 Jan 18 $14,371 $14,621 Feb 18 $13,834 $14,082 Mar 18 $13,474 $13,724 Apr 18 $13,522 $13,777 May 18 $13,840 $14,108 Jun 18 $13,924 $14,195 Jul 18 $14,437 $14,724 Aug 18 $14,900 $15,203 Sep 18 $14,984 $15,290 Oct 18 $13,955 $14,245 Nov 18 $14,232 $14,535 Dec 18 $12,945 $13,223 Jan 19 $13,977 $14,282 Feb 19 $14,423 $14,741 Mar 19 $14,696 $15,027 Apr 19 $15,289 $15,636 May 19 $14,314 $14,642 Jun 19 $15,321 $15,674 Jul 19 $15,531 $15,899 Aug 19 $15,280 $15,648 Sep 19 $15,563 $15,940 Oct 19 $15,891 $16,286 Nov 19 $16,463 $16,877 Dec 19 $16,954 $17,386 Jan 20 $16,947 $17,379 Feb 20 $15,547 $15,949 Mar 20 $13,618 $13,979 Apr 20 $15,354 $15,771 May 20 $16,082 $16,522 Jun 20 $16,398 $16,850 Jul 20 $17,318 $17,801 Aug 20 $18,554 $19,080 Sep 20 $17,846 $18,355 Oct 20 $17,366 $17,867 Nov 20 $19,263 $19,823 Dec 20 $19,993 $20,585 Jan 21 $19,785 $20,377 Feb 21 $20,326 $20,939 Mar 21 $21,215 $21,856 Apr 21 $22,341 $23,022 May 21 $22,489 $23,183 Jun 21 $23,000 $23,724 Jul 21 $23,541 $24,288 Aug 21 $24,249 $25,026 Sep 21 $23,112 $23,863 Oct 21 $24,724 $25,534 Nov 21 $24,543 $25,357 Dec 21 $25,637 $26,494 Jan 22 $24,302 $25,123 Feb 22 $23,570 $24,371 Mar 22 $24,439 $25,276 Apr 22 $22,300 $23,071 May 22 $22,332 $23,114 Jun 22 $20,482 $21,206 Jul 22 $22,362 $23,161 Aug 22 $21,447 $22,217 Sep 22 $19,464 $20,170 Oct 22 $21,035 $21,804 Nov 22 $22,200 $23,022 Dec 22 $20,914 $21,696 Jan 23 $22,226 $23,059 Feb 23 $21,677 $22,496 Mar 23 $22,466 $23,322 Apr 23 $22,809 $23,686 May 23 $22,895 $23,789 Jun 23 $24,404 $25,361 Jul 23 $25,178 $26,176 Aug 23 $24,772 $25,759 Sep 23 $23,581 $24,531 Oct 23 $23,089 $24,015 Nov 23 $25,195 $26,208 Dec 23 $26,331 $27,399 Jan 24 $26,764 $27,859 Feb 24 $28,178 $29,347 Mar 24 $29,079 $30,291 Apr 24 $27,881 $29,054 May 24 $29,250 $30,494 Jun 24 $30,295 $31,589 Jul 24 $30,651 $31,973 Aug 24 $31,385 $32,749 Sep 24 $32,047 $33,448 Oct 24 $31,748 $33,145 Nov 24 $33,597 $35,090 Dec 24 $32,788 $34,254 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.52 % 14.10 % 12.61 % S&P 500 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.02 14.53 13.10 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 2,850,673,634 |
| Holdings Count | Holding | 506 |
| Advisory Fees Paid, Amount | $ 1,876,629 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,850,673,634 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 506 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,876,629 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.4 % Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.6 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.2 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.1 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.7 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (7.4 ) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000195946 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Small Cap Index V.I. Fund |
| Class Name | Class I Shares |
| Trading Symbol | BSIVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Small Cap Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I Shares $23 0.22% |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.22% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the period? For the reporting period ended December 31, 2024, the Fund's Class I Shares returned 11.31%. For the same period, the Russell 3000 ® ® In 2024, United States (“U.S.”) equity markets experienced significant growth, driven by investor optimism in artificial intelligence related companies and strong earnings reports. The Federal Reserve (“Fed”) maintained interest rates at first as inflation rose in February 2024 and labor market data remained strong, dampening expectations of rate cuts at the beginning of the year. Large-cap equities continued to perform well into the second quarter 2024. The consumer price index (“CPI”) increased by 0.3% in April but remained flat from April to May, while the unemployment rate rose slightly from 3.9% to 4.0%. The Fed kept rates unchanged, leading to a rally in large-cap stocks, though small-cap equities lagged due to reduced rate cut expectations in the second quarter. The third quarter of 2024 saw a mixture of optimism and caution. A weaker CPI in July extended the bull market, but a disappointing jobs report in August raised concerns about an economic slowdown. Market volatility increased due to geopolitical risks and U.S. Presidential Election developments. The Fed cut rates by 50 basis points in September 2024, boosting equity markets to new highs. In the fourth quarter of 2024, U.S. equities remained positive despite sell-offs in October and December. A strong November rally followed Donald Trump's reelection, benefiting sectors aligned with his economic agenda. The Fed cut rates by 50 basis points across November and December, while still aiming to achieve it's goal of reducing inflation to it's 2% target. The Federal Open Market Committee revised its 2025 rate cut projections from four to two, causing a December selloff as investors adjusted to expectations of persistent inflation. Labor market conditions eased, with unemployment at 4.2% in November 2024. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class I Shares Russell 3000 ® Russell 2000 ® Jan 15 $9,681 $9,722 $9,678 Feb 15 $10,253 $10,285 $10,253 Mar 15 $10,423 $10,180 $10,432 Apr 15 $10,156 $10,226 $10,165 May 15 $10,379 $10,368 $10,398 Jun 15 $10,453 $10,194 $10,475 Jul 15 $10,327 $10,365 $10,354 Aug 15 $9,673 $9,739 $9,703 Sep 15 $9,198 $9,455 $9,227 Oct 15 $9,710 $10,202 $9,747 Nov 15 $10,022 $10,258 $10,064 Dec 15 $9,514 $10,048 $9,559 Jan 16 $8,674 $9,481 $8,718 Feb 16 $8,674 $9,478 $8,718 Mar 16 $9,361 $10,145 $9,413 Apr 16 $9,506 $10,208 $9,561 May 16 $9,716 $10,391 $9,777 Jun 16 $9,716 $10,412 $9,770 Jul 16 $10,289 $10,825 $10,354 Aug 16 $10,467 $10,853 $10,537 Sep 16 $10,580 $10,870 $10,654 Oct 16 $10,079 $10,635 $10,148 Nov 16 $11,202 $11,111 $11,279 Dec 16 $11,508 $11,327 $11,595 Jan 17 $11,559 $11,541 $11,641 Feb 17 $11,778 $11,970 $11,866 Mar 17 $11,795 $11,978 $11,881 Apr 17 $11,922 $12,105 $12,012 May 17 $11,677 $12,229 $11,767 Jun 17 $12,082 $12,339 $12,174 Jul 17 $12,167 $12,572 $12,264 Aug 17 $12,015 $12,596 $12,108 Sep 17 $12,758 $12,903 $12,864 Oct 17 $12,868 $13,185 $12,974 Nov 17 $13,231 $13,585 $13,348 Dec 17 $13,182 $13,721 $13,294 Jan 18 $13,526 $14,444 $13,641 Feb 18 $13,001 $13,912 $13,113 Mar 18 $13,164 $13,633 $13,283 Apr 18 $13,273 $13,684 $13,397 May 18 $14,078 $14,071 $14,211 Jun 18 $14,177 $14,163 $14,312 Jul 18 $14,422 $14,633 $14,562 Aug 18 $15,037 $15,147 $15,190 Sep 18 $14,675 $15,172 $14,824 Oct 18 $13,084 $14,055 $13,214 Nov 18 $13,285 $14,336 $13,424 Dec 18 $11,700 $13,002 $11,830 Jan 19 $13,028 $14,118 $13,160 Feb 19 $13,698 $14,614 $13,845 Mar 19 $13,406 $14,828 $13,555 Apr 19 $13,869 $15,420 $14,015 May 19 $12,784 $14,422 $12,925 Jun 19 $13,686 $15,435 $13,839 Jul 19 $13,754 $15,664 $13,918 Aug 19 $13,083 $15,345 $13,231 Sep 19 $13,352 $15,614 $13,507 Oct 19 $13,706 $15,950 $13,862 Nov 19 $14,267 $16,557 $14,433 Dec 19 $14,672 $17,035 $14,849 Jan 20 $14,193 $17,016 $14,373 Feb 20 $13,003 $15,623 $13,163 Mar 20 $10,169 $13,475 $10,303 Apr 20 $11,566 $15,259 $11,718 May 20 $12,330 $16,075 $12,481 Jun 20 $12,757 $16,443 $12,922 Jul 20 $13,106 $17,376 $13,280 Aug 20 $13,848 $18,635 $14,028 Sep 20 $13,379 $17,957 $13,559 Oct 20 $13,665 $17,569 $13,843 Nov 20 $16,188 $19,707 $16,395 Dec 20 $17,582 $20,593 $17,813 Jan 21 $18,459 $20,501 $18,709 Feb 21 $19,607 $21,142 $19,876 Mar 21 $19,796 $21,900 $20,075 Apr 21 $20,215 $23,029 $20,497 May 21 $20,255 $23,134 $20,539 Jun 21 $20,634 $23,705 $20,937 Jul 21 $19,891 $24,105 $20,181 Aug 21 $20,328 $24,793 $20,632 Sep 21 $19,728 $23,681 $20,024 Oct 21 $20,559 $25,282 $20,876 Nov 21 $19,700 $24,897 $20,006 Dec 21 $20,144 $25,877 $20,453 Jan 22 $18,206 $24,355 $18,484 Feb 22 $18,391 $23,741 $18,681 Mar 22 $18,621 $24,512 $18,914 Apr 22 $16,776 $22,312 $17,039 May 22 $16,807 $22,282 $17,065 Jun 22 $15,408 $20,418 $15,661 Jul 22 $17,025 $22,333 $17,296 Aug 22 $16,683 $21,500 $16,942 Sep 22 $15,082 $19,506 $15,319 Oct 22 $16,730 $21,106 $17,005 Nov 22 $17,119 $22,208 $17,402 Dec 22 $16,022 $20,907 $16,273 Jan 23 $17,580 $22,347 $17,859 Feb 23 $17,278 $21,825 $17,557 Mar 23 $16,451 $22,408 $16,718 Apr 23 $16,165 $22,647 $16,418 May 23 $16,006 $22,735 $16,266 Jun 23 $17,310 $24,288 $17,589 Jul 23 $18,353 $25,158 $18,664 Aug 23 $17,429 $24,673 $17,731 Sep 23 $16,394 $23,497 $16,687 Oct 23 $15,278 $22,875 $15,549 Nov 23 $16,664 $25,008 $16,956 Dec 23 $18,698 $26,334 $19,028 Jan 24 $17,972 $26,626 $18,288 Feb 24 $18,979 $28,067 $19,322 Mar 24 $19,655 $28,973 $20,013 Apr 24 $18,269 $27,698 $18,605 May 24 $19,177 $29,006 $19,538 Jun 24 $18,995 $29,904 $19,357 Jul 24 $20,922 $30,460 $21,324 Aug 24 $20,607 $31,123 $21,006 Sep 24 $20,757 $31,767 $21,152 Oct 24 $20,442 $31,534 $20,847 Nov 24 $22,696 $33,632 $23,134 Dec 24 $20,814 $32,604 $21,223 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class I Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.31 % 7.24 % 7.61 % Russell 3000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.81 13.86 12.55 Russell 2000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.54 7.40 7.82 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 334,973,231 |
| Holdings Count | Holding | 1,972 |
| Advisory Fees Paid, Amount | $ 256,820 |
| InvestmentCompanyPortfolioTurnover | 14% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $334,973,231 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,972 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $256,820 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.5 % Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.7 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.2 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.8 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.2 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (16.4 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| C000225418 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Small Cap Index V.I. Fund |
| Class Name | Class III Shares |
| Trading Symbol | BSIYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Small Cap Index V.I. Fund (the “Fund”) for the period of January 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class III Shares $49 0.47% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.47% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the period? For the reporting period ended December 31, 2024, the Fund's Class III Shares returned 11.07%. For the same period, the Russell 3000 ® ® In 2024, United States (“U.S.”) equity markets experienced significant growth, driven by investor optimism in artificial intelligence related companies and strong earnings reports. The Federal Reserve (“Fed”) maintained interest rates at first as inflation rose in February 2024 and labor market data remained strong, dampening expectations of rate cuts at the beginning of the year. Large-cap equities continued to perform well into the second quarter 2024. The consumer price index (“CPI”) increased by 0.3% in April but remained flat from April to May, while the unemployment rate rose slightly from 3.9% to 4.0%. The Fed kept rates unchanged, leading to a rally in large-cap stocks, though small-cap equities lagged due to reduced rate cut expectations in the second quarter. The third quarter of 2024 saw a mixture of optimism and caution. A weaker CPI in July extended the bull market, but a disappointing jobs report in August raised concerns about an economic slowdown. Market volatility increased due to geopolitical risks and U.S. Presidential Election developments. The Fed cut rates by 50 basis points in September 2024, boosting equity markets to new highs. In the fourth quarter of 2024, U.S. equities remained positive despite sell-offs in October and December. A strong November rally followed Donald Trump's reelection, benefiting sectors aligned with his economic agenda. The Fed cut rates by 50 basis points across November and December, while still aiming to achieve it's goal of reducing inflation to it's 2% target. The Federal Open Market Committee revised its 2025 rate cut projections from four to two, causing a December selloff as investors adjusted to expectations of persistent inflation. Labor market conditions eased, with unemployment at 4.2% in November 2024. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Class III Shares Russell 3000 ® Russell 2000 ® Jan 15 $9,678 $9,722 $9,678 Feb 15 $10,248 $10,285 $10,253 Mar 15 $10,417 $10,180 $10,432 Apr 15 $10,148 $10,226 $10,165 May 15 $10,368 $10,368 $10,398 Jun 15 $10,440 $10,194 $10,475 Jul 15 $10,312 $10,365 $10,354 Aug 15 $9,657 $9,739 $9,703 Sep 15 $9,180 $9,455 $9,227 Oct 15 $9,690 $10,202 $9,747 Nov 15 $9,999 $10,258 $10,064 Dec 15 $9,490 $10,048 $9,559 Jan 16 $8,651 $9,481 $8,718 Feb 16 $8,649 $9,478 $8,718 Mar 16 $9,332 $10,145 $9,413 Apr 16 $9,475 $10,208 $9,561 May 16 $9,682 $10,391 $9,777 Jun 16 $9,680 $10,412 $9,770 Jul 16 $10,249 $10,825 $10,354 Aug 16 $10,424 $10,853 $10,537 Sep 16 $10,534 $10,870 $10,654 Oct 16 $10,033 $10,635 $10,148 Nov 16 $11,149 $11,111 $11,279 Dec 16 $11,451 $11,327 $11,595 Jan 17 $11,499 $11,541 $11,641 Feb 17 $11,715 $11,970 $11,866 Mar 17 $11,729 $11,978 $11,881 Apr 17 $11,853 $12,105 $12,012 May 17 $11,607 $12,229 $11,767 Jun 17 $12,007 $12,339 $12,174 Jul 17 $12,089 $12,572 $12,264 Aug 17 $11,935 $12,596 $12,108 Sep 17 $12,671 $12,903 $12,864 Oct 17 $12,777 $13,185 $12,974 Nov 17 $13,135 $13,585 $13,348 Dec 17 $13,084 $13,721 $13,294 Jan 18 $13,422 $14,444 $13,641 Feb 18 $12,899 $13,912 $13,113 Mar 18 $13,058 $13,633 $13,283 Apr 18 $13,163 $13,684 $13,397 May 18 $13,959 $14,071 $14,211 Jun 18 $14,054 $14,163 $14,312 Jul 18 $14,293 $14,633 $14,562 Aug 18 $14,900 $15,147 $15,190 Sep 18 $14,539 $15,172 $14,824 Oct 18 $12,960 $14,055 $13,214 Nov 18 $13,156 $14,336 $13,424 Dec 18 $11,583 $13,002 $11,830 Jan 19 $12,896 $14,118 $13,160 Feb 19 $13,557 $14,614 $13,845 Mar 19 $13,265 $14,828 $13,555 Apr 19 $13,720 $15,420 $14,015 May 19 $12,644 $14,422 $12,925 Jun 19 $13,533 $15,435 $13,839 Jul 19 $13,598 $15,664 $13,918 Aug 19 $12,932 $15,345 $13,231 Sep 19 $13,194 $15,614 $13,507 Oct 19 $13,541 $15,950 $13,862 Nov 19 $14,093 $16,557 $14,433 Dec 19 $14,490 $17,035 $14,849 Jan 20 $14,014 $17,016 $14,373 Feb 20 $12,836 $15,623 $13,163 Mar 20 $10,037 $13,475 $10,303 Apr 20 $11,413 $15,259 $11,718 May 20 $12,164 $16,075 $12,481 Jun 20 $12,583 $16,443 $12,922 Jul 20 $12,925 $17,376 $13,280 Aug 20 $13,653 $18,635 $14,028 Sep 20 $13,189 $17,957 $13,559 Oct 20 $13,468 $17,569 $13,843 Nov 20 $15,951 $19,707 $16,395 Dec 20 $17,320 $20,593 $17,813 Jan 21 $18,181 $20,501 $18,709 Feb 21 $19,311 $21,142 $19,876 Mar 21 $19,483 $21,900 $20,075 Apr 21 $19,896 $23,029 $20,497 May 21 $19,922 $23,134 $20,539 Jun 21 $20,308 $23,705 $20,937 Jul 21 $19,564 $24,105 $20,181 Aug 21 $19,993 $24,793 $20,632 Sep 21 $19,402 $23,681 $20,024 Oct 21 $20,221 $25,282 $20,876 Nov 21 $19,362 $24,897 $20,006 Dec 21 $19,788 $25,877 $20,453 Jan 22 $17,880 $24,355 $18,484 Feb 22 $18,077 $23,741 $18,681 Mar 22 $18,289 $24,512 $18,914 Apr 22 $16,472 $22,312 $17,039 May 22 $16,503 $22,282 $17,065 Jun 22 $15,140 $20,418 $15,661 Jul 22 $16,718 $22,333 $17,296 Aug 22 $16,366 $21,500 $16,942 Sep 22 $14,789 $19,506 $15,319 Oct 22 $16,412 $21,106 $17,005 Nov 22 $16,794 $22,208 $17,402 Dec 22 $15,706 $20,907 $16,273 Jan 23 $17,238 $22,347 $17,859 Feb 23 $16,941 $21,825 $17,557 Mar 23 $16,128 $22,408 $16,718 Apr 23 $15,831 $22,647 $16,418 May 23 $15,675 $22,735 $16,266 Jun 23 $16,941 $24,288 $17,589 Jul 23 $17,967 $25,158 $18,664 Aug 23 $17,058 $24,673 $17,731 Sep 23 $16,056 $23,497 $16,687 Oct 23 $14,944 $22,875 $15,549 Nov 23 $16,306 $25,008 $16,956 Dec 23 $18,286 $26,334 $19,028 Jan 24 $17,574 $26,626 $18,288 Feb 24 $18,562 $28,067 $19,322 Mar 24 $19,209 $28,973 $20,013 Apr 24 $17,849 $27,698 $18,605 May 24 $18,740 $29,006 $19,538 Jun 24 $18,562 $29,904 $19,357 Jul 24 $20,437 $30,460 $21,324 Aug 24 $20,128 $31,123 $21,006 Sep 24 $20,258 $31,767 $21,152 Oct 24 $19,965 $31,534 $20,847 Nov 24 $22,145 $33,632 $23,134 Dec 24 $20,310 $32,604 $21,223 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 years 10 Years Class III Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.07 % 6.99 % 7.34 % Russell 3000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.81 13.86 12.55 Russell 2000 ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.54 7.40 7.82 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 334,973,231 |
| Holdings Count | Holding | 1,972 |
| Advisory Fees Paid, Amount | $ 256,820 |
| InvestmentCompanyPortfolioTurnover | 14% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $334,973,231 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,972 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $256,820 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14% |
| Holdings [Text Block] | Sector allocation Sector Footnote Reference (a) Percent of Net Assets Financials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.5 % Industrials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.7 Health Care ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.2 Information Technology ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.8 Consumer Discretionary ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.7 Real Estate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 Energy ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 Materials ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.2 Consumer Staples ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.8 Communication Services ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Utilities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Short-Term Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.0 Liabilities in Excess of Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (16.4 ) Footnote Description Footnote (a) For purpose of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes. |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dec. 31, 2024 | Nov. 30, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Apr. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020 | Oct. 31, 2020 | Sep. 30, 2020 | Aug. 31, 2020 | Jul. 31, 2020 | Jun. 30, 2020 | May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | May 31, 2019 | Apr. 30, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Nov. 30, 2018 | Oct. 31, 2018 | Sep. 30, 2018 | Aug. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2018 | May 31, 2018 | Apr. 30, 2018 | Mar. 31, 2018 | Feb. 28, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | May 31, 2017 | Apr. 30, 2017 | Mar. 31, 2017 | Feb. 28, 2017 | Jan. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2016 | Oct. 31, 2016 | Sep. 30, 2016 | Aug. 31, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Feb. 29, 2016 | Jan. 31, 2016 | Dec. 31, 2015 | Nov. 30, 2015 | Oct. 31, 2015 | Sep. 30, 2015 | Aug. 31, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | May 31, 2015 | Apr. 30, 2015 | Mar. 31, 2015 | Feb. 28, 2015 | Jan. 31, 2015 | |
| C000141138 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 19,198 | $ 19,676 | $ 19,079 | $ 19,507 | $ 19,221 | $ 18,806 | $ 18,547 | $ 18,157 | $ 17,482 | $ 18,105 | $ 17,703 | $ 17,314 | $ 17,197 | $ 16,465 | $ 15,346 | $ 15,702 | $ 16,313 | $ 16,580 | $ 16,261 | $ 15,727 | $ 15,816 | $ 15,638 | $ 15,218 | $ 15,663 | $ 14,874 | $ 15,390 | $ 14,531 | $ 13,970 | $ 15,066 | $ 15,626 | $ 14,824 | $ 15,783 | $ 15,671 | $ 16,716 | $ 16,554 | $ 16,878 | $ 17,463 | $ 16,947 | $ 17,220 | $ 16,617 | $ 17,050 | $ 16,811 | $ 16,741 | $ 16,593 | $ 16,400 | $ 15,957 | $ 15,718 | $ 15,559 | $ 15,593 | $ 15,138 | $ 14,063 | $ 14,253 | $ 14,522 | $ 14,074 | $ 13,498 | $ 13,263 | $ 12,805 | $ 11,967 | $ 13,040 | $ 13,610 | $ 13,598 | $ 13,321 | $ 13,103 | $ 12,897 | $ 12,788 | $ 12,767 | $ 12,698 | $ 12,167 | $ 12,536 | $ 12,264 | $ 12,047 | $ 11,808 | $ 11,201 | $ 11,720 | $ 11,614 | $ 12,260 | $ 12,238 | $ 12,037 | $ 11,783 | $ 11,804 | $ 11,667 | $ 11,688 | $ 11,698 | $ 12,111 | $ 11,783 | $ 11,660 | $ 11,515 | $ 11,369 | $ 11,203 | $ 11,182 | $ 10,974 | $ 10,912 | $ 10,766 | $ 10,652 | $ 10,600 | $ 10,382 | $ 10,236 | $ 10,090 | $ 10,101 | $ 10,294 | $ 10,263 | $ 10,274 | $ 10,029 | $ 9,917 | $ 9,897 | $ 9,785 | $ 9,328 | $ 9,338 | $ 9,612 | $ 9,800 | $ 9,840 | $ 9,481 | $ 9,681 | $ 10,070 | $ 10,110 | $ 10,299 | $ 10,319 | $ 10,190 | $ 10,259 | $ 9,990 |
| C000141139 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 18,731 | 19,212 | 18,624 | 19,059 | 18,777 | 18,368 | 18,112 | 17,741 | 17,089 | 17,703 | 17,306 | 16,935 | 16,820 | 16,120 | 15,027 | 15,379 | 15,969 | 16,233 | 15,931 | 15,403 | 15,491 | 15,328 | 14,913 | 15,353 | 14,586 | 15,092 | 14,254 | 13,712 | 14,784 | 15,351 | 14,557 | 15,505 | 15,394 | 16,429 | 16,269 | 16,589 | 17,168 | 16,666 | 16,937 | 16,339 | 16,779 | 16,553 | 16,484 | 16,338 | 16,158 | 15,719 | 15,493 | 15,336 | 15,370 | 14,924 | 13,869 | 14,057 | 14,324 | 13,880 | 13,319 | 13,086 | 12,642 | 11,822 | 12,886 | 13,452 | 13,441 | 13,173 | 12,957 | 12,752 | 12,644 | 12,633 | 12,565 | 12,037 | 12,404 | 12,134 | 11,929 | 11,692 | 11,088 | 11,609 | 11,504 | 12,147 | 12,136 | 11,936 | 11,694 | 11,715 | 11,578 | 11,599 | 11,609 | 12,020 | 11,694 | 11,582 | 11,437 | 11,302 | 11,137 | 11,116 | 10,919 | 10,857 | 10,711 | 10,597 | 10,545 | 10,338 | 10,193 | 10,049 | 10,059 | 10,252 | 10,232 | 10,232 | 9,998 | 9,886 | 9,876 | 9,764 | 9,317 | 9,317 | 9,601 | 9,780 | 9,830 | 9,471 | 9,670 | 10,070 | 10,100 | 10,290 | 10,320 | 10,190 | 10,260 | 10,000 |
| C000007905 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 32,124 | 33,049 | 31,222 | 31,548 | 30,947 | 30,221 | 29,825 | 28,786 | 27,360 | 28,561 | 27,310 | 26,034 | 25,609 | 24,493 | 22,383 | 22,867 | 23,972 | 24,332 | 23,627 | 22,051 | 22,051 | 21,902 | 21,269 | 21,753 | 20,450 | 21,674 | 20,556 | 18,948 | 20,802 | 21,686 | 20,041 | 21,901 | 21,925 | 24,001 | 23,265 | 24,110 | 25,559 | 24,501 | 24,604 | 23,057 | 24,227 | 23,673 | 23,074 | 22,555 | 22,322 | 21,177 | 20,358 | 19,719 | 19,899 | 19,131 | 17,138 | 17,720 | 18,444 | 17,119 | 16,242 | 15,879 | 15,124 | 13,328 | 15,329 | 16,707 | 16,611 | 16,180 | 15,615 | 15,310 | 15,089 | 15,423 | 15,257 | 14,415 | 15,274 | 14,675 | 14,506 | 14,008 | 12,884 | 14,163 | 13,944 | 15,119 | 15,089 | 14,558 | 14,091 | 14,048 | 13,752 | 13,785 | 14,038 | 14,492 | 13,594 | 13,482 | 13,106 | 12,833 | 12,503 | 12,417 | 12,182 | 12,133 | 12,063 | 11,851 | 11,882 | 11,356 | 11,112 | 10,878 | 10,254 | 10,367 | 10,354 | 10,247 | 9,853 | 9,991 | 9,824 | 9,885 | 9,255 | 9,370 | 10,052 | 10,185 | 10,182 | 9,396 | 9,692 | 10,306 | 10,072 | 10,231 | 10,033 | 10,021 | 10,168 | 9,504 |
| C000007906 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 31,585 | 32,503 | 30,710 | 31,029 | 30,452 | 29,739 | 29,350 | 28,331 | 26,931 | 28,122 | 26,894 | 25,642 | 25,212 | 24,128 | 22,054 | 22,542 | 23,628 | 23,982 | 23,288 | 21,739 | 21,751 | 21,605 | 20,970 | 21,458 | 20,165 | 21,385 | 20,285 | 18,700 | 20,527 | 21,422 | 19,790 | 21,621 | 21,657 | 23,702 | 22,977 | 23,821 | 25,260 | 24,218 | 24,320 | 22,798 | 23,955 | 23,407 | 22,822 | 22,309 | 22,085 | 20,953 | 20,144 | 19,519 | 19,704 | 18,944 | 16,970 | 17,547 | 18,270 | 16,958 | 16,095 | 15,736 | 14,988 | 13,210 | 15,197 | 16,562 | 16,466 | 16,045 | 15,484 | 15,187 | 14,969 | 15,305 | 15,141 | 14,306 | 15,163 | 14,569 | 14,407 | 13,913 | 12,798 | 14,070 | 13,857 | 15,025 | 14,996 | 14,472 | 14,008 | 13,970 | 13,675 | 13,709 | 13,965 | 14,416 | 13,523 | 13,417 | 13,042 | 12,774 | 12,445 | 12,364 | 12,129 | 12,084 | 12,018 | 11,806 | 11,837 | 11,317 | 11,078 | 10,842 | 10,222 | 10,335 | 10,326 | 10,222 | 9,829 | 9,967 | 9,801 | 9,864 | 9,239 | 9,353 | 10,034 | 10,169 | 10,166 | 9,384 | 9,680 | 10,294 | 10,063 | 10,225 | 10,027 | 10,018 | 10,165 | 9,501 |
| C000007907 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 31,263 | 32,181 | 30,407 | 30,726 | 30,157 | 29,452 | 29,069 | 28,057 | 26,682 | 27,864 | 26,648 | 25,409 | 24,988 | 23,907 | 21,859 | 22,334 | 23,420 | 23,771 | 23,083 | 21,556 | 21,567 | 21,420 | 20,798 | 21,285 | 20,007 | 21,203 | 20,115 | 18,543 | 20,361 | 21,248 | 19,633 | 21,456 | 21,489 | 23,522 | 22,803 | 23,632 | 25,057 | 24,033 | 24,135 | 22,625 | 23,774 | 23,237 | 22,655 | 22,153 | 21,928 | 20,803 | 20,003 | 19,388 | 19,566 | 18,815 | 16,856 | 17,436 | 18,156 | 16,850 | 15,995 | 15,640 | 14,894 | 13,132 | 15,111 | 16,470 | 16,374 | 15,956 | 15,404 | 15,105 | 14,891 | 15,223 | 15,064 | 14,236 | 15,087 | 14,501 | 14,337 | 13,847 | 12,737 | 14,009 | 13,795 | 14,960 | 14,935 | 14,414 | 13,952 | 13,914 | 13,627 | 13,661 | 13,914 | 14,367 | 13,479 | 13,372 | 13,000 | 12,733 | 12,407 | 12,329 | 12,096 | 12,051 | 11,985 | 11,776 | 11,807 | 11,288 | 11,052 | 10,816 | 10,200 | 10,313 | 10,304 | 10,203 | 9,812 | 9,949 | 9,786 | 9,850 | 9,225 | 9,340 | 10,023 | 10,158 | 10,155 | 9,378 | 9,672 | 10,287 | 10,057 | 10,220 | 10,024 | 10,015 | 10,163 | 9,499 |
| C000007911 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 23,903 | 25,605 | 24,138 | 24,453 | 24,159 | 23,489 | 22,417 | 22,396 | 21,649 | 22,645 | 21,337 | 20,715 | 20,549 | 19,537 | 18,076 | 18,629 | 19,300 | 19,656 | 19,016 | 17,797 | 18,525 | 18,387 | 18,407 | 18,977 | 18,072 | 18,788 | 17,732 | 16,003 | 17,424 | 18,000 | 16,999 | 18,640 | 18,300 | 19,281 | 18,753 | 19,112 | 19,678 | 18,514 | 18,984 | 18,121 | 18,874 | 18,576 | 18,244 | 18,479 | 17,994 | 17,258 | 16,288 | 15,365 | 15,553 | 15,022 | 13,187 | 13,480 | 13,897 | 13,249 | 12,797 | 12,843 | 12,463 | 11,154 | 13,254 | 14,699 | 15,004 | 14,649 | 14,177 | 14,020 | 13,605 | 14,020 | 13,915 | 13,129 | 13,915 | 13,429 | 13,415 | 12,957 | 12,013 | 13,258 | 12,935 | 13,781 | 13,744 | 13,495 | 13,001 | 12,976 | 12,939 | 12,927 | 13,062 | 13,678 | 13,087 | 12,921 | 12,542 | 12,448 | 12,003 | 12,031 | 11,849 | 11,701 | 11,738 | 11,655 | 11,812 | 11,303 | 11,164 | 10,919 | 10,145 | 10,231 | 10,222 | 10,076 | 9,776 | 9,870 | 9,742 | 9,665 | 9,041 | 9,109 | 9,828 | 9,994 | 9,970 | 9,286 | 9,572 | 10,153 | 10,016 | 10,157 | 9,961 | 9,898 | 10,055 | 9,427 |
| C000007913 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 23,243 | 24,902 | 23,472 | 23,787 | 23,514 | 22,841 | 21,807 | 21,807 | 21,078 | 22,036 | 20,786 | 20,182 | 20,016 | 19,028 | 17,619 | 18,174 | 18,829 | 19,166 | 18,564 | 17,379 | 18,070 | 17,951 | 17,971 | 18,544 | 17,655 | 18,362 | 17,318 | 15,637 | 17,028 | 17,608 | 16,639 | 18,232 | 17,910 | 18,877 | 18,346 | 18,707 | 19,276 | 18,132 | 18,604 | 17,754 | 18,494 | 18,211 | 17,877 | 18,128 | 17,658 | 16,936 | 15,994 | 15,084 | 15,272 | 14,754 | 12,956 | 13,235 | 13,654 | 13,018 | 12,580 | 12,626 | 12,244 | 10,975 | 13,054 | 14,461 | 14,766 | 14,416 | 13,955 | 13,812 | 13,409 | 13,812 | 13,721 | 12,944 | 13,721 | 13,246 | 13,232 | 12,786 | 11,851 | 13,094 | 12,769 | 13,607 | 13,570 | 13,332 | 12,835 | 12,823 | 12,786 | 12,773 | 12,909 | 13,528 | 12,947 | 12,787 | 12,416 | 12,321 | 11,883 | 11,921 | 11,739 | 11,599 | 11,646 | 11,562 | 11,720 | 11,218 | 11,079 | 10,836 | 10,083 | 10,169 | 10,161 | 10,022 | 9,720 | 9,815 | 9,694 | 9,617 | 8,997 | 9,075 | 9,789 | 9,962 | 9,938 | 9,263 | 9,552 | 10,131 | 9,992 | 10,143 | 9,952 | 9,889 | 10,048 | 9,421 |
| C000007914 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 24,121 | 25,952 | 23,542 | 23,928 | 23,542 | 23,674 | 22,095 | 22,522 | 21,648 | 23,091 | 22,024 | 21,079 | 21,526 | 19,371 | 17,739 | 18,897 | 19,864 | 20,499 | 19,617 | 17,946 | 18,550 | 18,812 | 19,426 | 19,839 | 18,107 | 19,078 | 18,270 | 16,645 | 18,211 | 18,709 | 17,030 | 18,850 | 18,632 | 20,333 | 20,165 | 19,967 | 21,678 | 20,881 | 21,932 | 20,747 | 21,577 | 21,229 | 21,297 | 21,061 | 21,082 | 20,083 | 19,757 | 18,966 | 19,077 | 18,308 | 16,376 | 16,839 | 17,544 | 16,284 | 15,502 | 15,109 | 14,386 | 12,677 | 14,670 | 15,973 | 15,902 | 15,492 | 14,931 | 14,616 | 14,423 | 14,779 | 14,613 | 13,784 | 14,619 | 14,017 | 13,930 | 13,451 | 12,329 | 13,523 | 13,306 | 14,457 | 14,452 | 13,928 | 13,495 | 13,443 | 13,048 | 13,079 | 13,315 | 13,813 | 13,171 | 13,067 | 12,667 | 12,387 | 12,059 | 11,949 | 11,718 | 11,507 | 11,639 | 11,565 | 11,672 | 11,507 | 11,548 | 11,337 | 10,043 | 10,541 | 10,549 | 10,235 | 9,769 | 9,665 | 9,568 | 9,432 | 8,708 | 8,540 | 9,339 | 9,811 | 9,660 | 9,101 | 9,626 | 10,072 | 10,263 | 10,256 | 10,145 | 10,245 | 10,048 | 9,544 |
| C000007916 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 23,551 | 25,353 | 23,007 | 23,391 | 23,007 | 23,156 | 21,616 | 22,042 | 21,190 | 22,595 | 21,573 | 20,636 | 21,083 | 18,975 | 17,385 | 18,515 | 19,477 | 20,105 | 19,236 | 17,605 | 18,190 | 18,462 | 19,068 | 19,466 | 17,772 | 18,728 | 17,948 | 16,346 | 17,907 | 18,379 | 16,749 | 18,525 | 18,323 | 19,998 | 19,836 | 19,655 | 21,329 | 20,560 | 21,596 | 20,437 | 21,251 | 20,916 | 20,990 | 20,764 | 20,785 | 19,807 | 19,484 | 18,710 | 18,818 | 18,066 | 16,163 | 16,624 | 17,330 | 16,085 | 15,312 | 14,927 | 14,215 | 12,529 | 14,503 | 15,804 | 15,726 | 15,330 | 14,780 | 14,471 | 14,279 | 14,638 | 14,476 | 13,650 | 14,484 | 13,892 | 13,808 | 13,333 | 12,224 | 13,414 | 13,201 | 14,348 | 14,341 | 13,824 | 13,396 | 13,347 | 12,963 | 12,998 | 13,235 | 13,731 | 13,095 | 12,993 | 12,595 | 12,323 | 11,996 | 11,887 | 11,662 | 11,457 | 11,583 | 11,515 | 11,625 | 11,462 | 11,504 | 11,297 | 10,008 | 10,505 | 10,515 | 10,206 | 9,744 | 9,637 | 9,546 | 9,408 | 8,687 | 8,525 | 9,322 | 9,793 | 9,642 | 9,087 | 9,609 | 10,061 | 10,253 | 10,248 | 10,133 | 10,239 | 10,041 | 9,540 |
| C000007923 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 21,157 | 22,466 | 21,444 | 21,651 | 21,711 | 21,459 | 20,353 | 20,724 | 20,116 | 20,650 | 19,805 | 19,228 | 19,168 | 18,144 | 16,769 | 17,316 | 17,822 | 18,635 | 18,019 | 16,760 | 17,529 | 16,984 | 17,166 | 17,781 | 16,438 | 17,204 | 16,176 | 14,671 | 16,163 | 16,665 | 15,682 | 17,425 | 16,819 | 17,635 | 17,585 | 17,400 | 17,289 | 16,260 | 17,135 | 16,463 | 16,900 | 16,762 | 16,731 | 17,149 | 16,720 | 15,998 | 14,962 | 14,104 | 14,209 | 13,657 | 11,600 | 11,701 | 12,177 | 11,772 | 11,530 | 11,520 | 11,060 | 9,871 | 11,989 | 13,238 | 13,738 | 13,274 | 12,907 | 12,782 | 12,334 | 12,719 | 12,671 | 11,946 | 12,823 | 12,331 | 12,295 | 11,937 | 11,087 | 12,264 | 12,186 | 12,881 | 12,881 | 12,607 | 12,062 | 12,023 | 11,962 | 11,777 | 12,070 | 12,663 | 12,031 | 11,890 | 11,454 | 11,388 | 11,056 | 11,225 | 11,028 | 10,896 | 11,020 | 11,145 | 11,342 | 11,050 | 11,115 | 10,943 | 10,156 | 10,489 | 10,383 | 10,206 | 9,898 | 10,038 | 9,834 | 9,489 | 8,708 | 8,807 | 9,405 | 9,697 | 9,783 | 9,109 | 9,611 | 10,347 | 10,323 | 10,475 | 10,365 | 10,280 | 10,335 | 9,501 |
| C000007925 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 20,573 | 21,865 | 20,869 | 21,074 | 21,118 | 20,884 | 19,821 | 20,187 | 19,586 | 20,128 | 19,308 | 18,752 | 18,693 | 17,702 | 16,354 | 16,896 | 17,396 | 18,202 | 17,592 | 16,373 | 17,121 | 16,594 | 16,774 | 17,384 | 16,082 | 16,829 | 15,822 | 14,354 | 15,822 | 16,319 | 15,357 | 17,073 | 16,485 | 17,281 | 17,244 | 17,061 | 16,950 | 15,952 | 16,810 | 16,153 | 16,587 | 16,460 | 16,429 | 16,855 | 16,429 | 15,713 | 14,706 | 13,866 | 13,970 | 13,435 | 11,407 | 11,518 | 11,982 | 11,589 | 11,358 | 11,348 | 10,890 | 9,727 | 11,815 | 13,058 | 13,546 | 13,092 | 12,735 | 12,610 | 12,173 | 12,566 | 12,518 | 11,795 | 12,669 | 12,188 | 12,152 | 11,804 | 10,965 | 12,135 | 12,057 | 12,744 | 12,752 | 12,487 | 11,941 | 11,911 | 11,857 | 11,672 | 11,965 | 12,558 | 11,934 | 11,796 | 11,366 | 11,307 | 10,974 | 11,144 | 10,946 | 10,821 | 10,946 | 11,070 | 11,276 | 10,990 | 11,048 | 10,886 | 10,104 | 10,438 | 10,339 | 10,161 | 9,852 | 10,000 | 9,802 | 9,456 | 8,679 | 8,777 | 9,385 | 9,671 | 9,763 | 9,091 | 9,597 | 10,330 | 10,306 | 10,466 | 10,355 | 10,270 | 10,331 | 9,498 |
| C000007932 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 40,739 | 40,436 | 38,125 | 38,386 | 37,678 | 36,858 | 37,936 | 35,508 | 33,298 | 35,001 | 34,349 | 31,994 | 30,798 | 29,528 | 26,232 | 26,575 | 28,395 | 28,395 | 27,639 | 25,785 | 24,481 | 24,137 | 22,386 | 22,936 | 20,669 | 22,487 | 21,247 | 20,443 | 22,956 | 24,766 | 22,052 | 24,166 | 24,687 | 28,622 | 27,939 | 29,403 | 33,143 | 32,779 | 33,239 | 31,264 | 33,185 | 32,130 | 31,083 | 29,206 | 29,576 | 27,515 | 27,435 | 27,303 | 27,356 | 26,435 | 23,636 | 24,366 | 25,121 | 23,076 | 21,883 | 21,038 | 19,470 | 16,985 | 18,939 | 19,977 | 19,277 | 18,848 | 17,932 | 17,627 | 18,034 | 18,176 | 18,091 | 16,983 | 17,829 | 17,083 | 16,600 | 16,056 | 14,605 | 15,960 | 15,514 | 17,340 | 17,268 | 16,578 | 16,405 | 16,071 | 15,432 | 15,084 | 15,432 | 15,752 | 14,264 | 14,185 | 13,907 | 13,264 | 13,238 | 13,125 | 12,580 | 12,493 | 12,146 | 11,786 | 11,650 | 11,178 | 10,707 | 10,634 | 10,757 | 11,039 | 10,855 | 10,806 | 10,238 | 10,431 | 10,069 | 10,153 | 9,622 | 9,852 | 10,697 | 10,868 | 10,732 | 9,894 | 10,359 | 11,117 | 10,633 | 10,733 | 10,511 | 10,400 | 10,500 | 9,833 |
| C000007934 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 39,664 | 39,404 | 37,151 | 37,380 | 36,731 | 35,929 | 36,995 | 34,623 | 32,473 | 34,178 | 33,511 | 31,249 | 30,063 | 28,838 | 25,606 | 25,958 | 27,749 | 27,749 | 27,011 | 25,220 | 23,920 | 23,604 | 21,918 | 22,445 | 20,232 | 22,022 | 20,823 | 20,001 | 22,501 | 24,282 | 21,611 | 23,703 | 24,201 | 28,052 | 27,421 | 28,848 | 32,533 | 32,191 | 32,658 | 30,682 | 32,603 | 31,587 | 30,553 | 28,705 | 29,080 | 27,045 | 26,992 | 26,858 | 26,911 | 26,030 | 23,274 | 23,988 | 24,750 | 22,733 | 21,576 | 20,747 | 19,187 | 16,749 | 18,675 | 19,699 | 19,016 | 18,603 | 17,681 | 17,415 | 17,804 | 17,948 | 17,862 | 16,767 | 17,618 | 16,889 | 16,422 | 15,875 | 14,456 | 15,781 | 15,364 | 17,164 | 17,092 | 16,429 | 16,242 | 15,922 | 15,282 | 14,948 | 15,296 | 15,616 | 14,154 | 14,071 | 13,793 | 13,160 | 13,148 | 13,034 | 12,488 | 12,413 | 12,065 | 11,716 | 11,580 | 11,119 | 10,647 | 10,574 | 10,697 | 10,980 | 10,796 | 10,746 | 10,189 | 10,383 | 10,032 | 10,116 | 9,584 | 9,814 | 10,661 | 10,827 | 10,713 | 9,872 | 10,327 | 11,089 | 10,614 | 10,714 | 10,502 | 10,391 | 10,491 | 9,821 |
| C000007917 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 23,821 | 25,403 | 24,343 | 24,699 | 24,720 | 24,306 | 23,193 | 23,459 | 22,845 | 23,374 | 22,356 | 21,827 | 21,644 | 20,707 | 19,308 | 19,715 | 20,275 | 21,008 | 20,491 | 19,326 | 20,167 | 19,493 | 19,816 | 20,424 | 19,284 | 20,057 | 18,865 | 17,181 | 18,791 | 19,316 | 18,343 | 20,113 | 19,517 | 20,418 | 20,220 | 20,269 | 20,055 | 18,995 | 20,059 | 19,171 | 19,549 | 19,316 | 19,383 | 19,841 | 19,340 | 18,575 | 17,421 | 16,481 | 16,637 | 16,010 | 13,860 | 14,186 | 14,584 | 14,214 | 13,812 | 13,839 | 13,352 | 12,122 | 14,181 | 15,607 | 16,011 | 15,581 | 15,075 | 14,779 | 14,401 | 14,666 | 14,483 | 13,615 | 14,421 | 13,831 | 13,757 | 13,412 | 12,537 | 13,713 | 13,530 | 14,284 | 14,295 | 14,068 | 13,454 | 13,432 | 13,398 | 13,148 | 13,482 | 14,183 | 13,504 | 13,384 | 13,035 | 12,815 | 12,394 | 12,510 | 12,302 | 12,104 | 12,010 | 11,931 | 11,993 | 11,578 | 11,568 | 11,309 | 10,575 | 10,636 | 10,746 | 10,686 | 10,431 | 10,332 | 10,213 | 9,988 | 9,424 | 9,483 | 9,939 | 10,068 | 10,002 | 9,275 | 9,480 | 10,087 | 9,906 | 10,081 | 9,989 | 9,899 | 10,073 | 9,560 |
| C000007919 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 23,228 | 24,795 | 23,756 | 24,101 | 24,141 | 23,736 | 22,659 | 22,920 | 22,338 | 22,831 | 21,872 | 21,333 | 21,173 | 20,248 | 18,894 | 19,306 | 19,856 | 20,576 | 20,062 | 18,936 | 19,743 | 19,112 | 19,411 | 20,008 | 18,906 | 19,662 | 18,506 | 16,861 | 18,429 | 18,946 | 18,001 | 19,760 | 19,174 | 20,056 | 19,862 | 19,926 | 19,715 | 18,668 | 19,717 | 18,854 | 19,226 | 19,011 | 19,075 | 19,527 | 19,046 | 18,288 | 17,163 | 16,234 | 16,389 | 15,779 | 13,669 | 13,986 | 14,379 | 14,013 | 13,638 | 13,651 | 13,169 | 11,961 | 13,999 | 15,411 | 15,824 | 15,395 | 14,893 | 14,610 | 14,235 | 14,497 | 14,325 | 13,476 | 14,263 | 13,687 | 13,613 | 13,283 | 12,415 | 13,591 | 13,409 | 14,156 | 14,167 | 13,952 | 13,340 | 13,318 | 13,284 | 13,044 | 13,387 | 14,084 | 13,409 | 13,287 | 12,940 | 12,729 | 12,320 | 12,424 | 12,225 | 12,028 | 11,945 | 11,863 | 11,935 | 11,511 | 11,511 | 11,249 | 10,527 | 10,594 | 10,704 | 10,644 | 10,385 | 10,296 | 10,177 | 9,968 | 9,394 | 9,463 | 9,918 | 10,052 | 9,987 | 9,263 | 9,459 | 10,066 | 9,891 | 10,066 | 9,974 | 9,899 | 10,073 | 9,559 |
| C000007938 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 17,226 | 17,674 | 17,167 | 17,586 | 17,304 | 16,953 | 16,766 | 16,563 | 16,002 | 16,611 | 16,205 | 15,760 | 15,770 | 15,103 | 14,147 | 14,365 | 14,914 | 15,264 | 14,980 | 14,497 | 14,649 | 14,526 | 14,195 | 14,715 | 13,977 | 14,355 | 13,579 | 13,135 | 14,100 | 14,535 | 13,894 | 14,800 | 14,660 | 15,481 | 15,612 | 15,958 | 16,611 | 16,234 | 16,683 | 16,226 | 16,756 | 16,593 | 16,603 | 16,611 | 16,379 | 15,836 | 15,708 | 15,500 | 15,572 | 14,961 | 13,662 | 13,921 | 14,141 | 13,609 | 12,929 | 12,673 | 12,200 | 11,267 | 12,372 | 12,884 | 12,869 | 12,561 | 12,395 | 12,133 | 12,046 | 12,039 | 12,077 | 11,603 | 11,926 | 11,725 | 11,603 | 11,467 | 10,907 | 11,368 | 11,230 | 11,773 | 11,828 | 11,815 | 11,593 | 11,661 | 11,675 | 11,722 | 11,825 | 12,206 | 11,770 | 11,699 | 11,572 | 11,478 | 11,411 | 11,364 | 11,137 | 11,117 | 10,937 | 10,804 | 10,717 | 10,524 | 10,337 | 10,232 | 10,205 | 10,337 | 10,284 | 10,238 | 9,949 | 9,949 | 9,995 | 9,883 | 9,482 | 9,587 | 9,929 | 10,021 | 10,070 | 9,640 | 9,933 | 10,301 | 10,302 | 10,499 | 10,468 | 10,277 | 10,345 | 10,006 |
| C000007939 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 16,966 | 17,405 | 16,902 | 17,327 | 17,047 | 16,698 | 16,522 | 16,321 | 15,774 | 16,378 | 15,975 | 15,543 | 15,553 | 14,895 | 13,954 | 14,170 | 14,707 | 15,064 | 14,782 | 14,302 | 14,462 | 14,349 | 14,020 | 14,537 | 13,813 | 14,180 | 13,418 | 12,985 | 13,935 | 14,368 | 13,740 | 14,631 | 14,501 | 15,318 | 15,448 | 15,782 | 16,441 | 16,065 | 16,512 | 16,057 | 16,585 | 16,423 | 16,440 | 16,448 | 16,226 | 15,685 | 15,558 | 15,359 | 15,431 | 14,828 | 13,542 | 13,799 | 14,018 | 13,496 | 12,826 | 12,571 | 12,100 | 11,179 | 12,272 | 12,788 | 12,773 | 12,469 | 12,310 | 12,050 | 11,956 | 11,956 | 11,993 | 11,528 | 11,843 | 11,649 | 11,528 | 11,399 | 10,840 | 11,306 | 11,162 | 11,711 | 11,766 | 11,753 | 11,531 | 11,599 | 11,613 | 11,667 | 11,769 | 12,151 | 11,722 | 11,647 | 11,520 | 11,433 | 11,366 | 11,319 | 11,099 | 11,072 | 10,899 | 10,772 | 10,679 | 10,485 | 10,305 | 10,203 | 10,177 | 10,309 | 10,256 | 10,210 | 9,926 | 9,926 | 9,973 | 9,860 | 9,465 | 9,570 | 9,913 | 10,008 | 10,058 | 9,633 | 9,921 | 10,290 | 10,297 | 10,494 | 10,464 | 10,272 | 10,346 | 10,006 |
| C000007940 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 16,812 | 17,244 | 16,754 | 17,172 | 16,897 | 16,550 | 16,381 | 16,180 | 15,635 | 16,239 | 15,836 | 15,410 | 15,422 | 14,772 | 13,837 | 14,056 | 14,588 | 14,946 | 14,668 | 14,195 | 14,345 | 14,241 | 13,918 | 14,426 | 13,710 | 14,079 | 13,329 | 12,890 | 13,837 | 14,276 | 13,643 | 14,529 | 14,404 | 15,211 | 15,347 | 15,677 | 16,336 | 15,961 | 16,406 | 15,961 | 16,483 | 16,329 | 16,350 | 16,350 | 16,133 | 15,596 | 15,473 | 15,275 | 15,351 | 14,749 | 13,469 | 13,727 | 13,949 | 13,424 | 12,761 | 12,506 | 12,041 | 11,128 | 12,217 | 12,726 | 12,717 | 12,413 | 12,253 | 12,000 | 11,907 | 11,907 | 11,951 | 11,484 | 11,800 | 11,609 | 11,492 | 11,358 | 10,800 | 11,268 | 11,133 | 11,673 | 11,729 | 11,713 | 11,496 | 11,567 | 11,583 | 11,630 | 11,740 | 12,110 | 11,685 | 11,616 | 11,485 | 11,400 | 11,330 | 11,284 | 11,061 | 11,045 | 10,868 | 10,738 | 10,653 | 10,461 | 10,277 | 10,181 | 10,158 | 10,287 | 10,234 | 10,196 | 9,908 | 9,908 | 9,961 | 9,847 | 9,452 | 9,558 | 9,900 | 9,995 | 10,045 | 9,623 | 9,909 | 10,282 | 10,289 | 10,487 | 10,459 | 10,268 | 10,339 | 10,000 |
| C000195945 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 16,511 | 16,995 | 17,026 | 18,026 | 17,901 | 17,308 | 16,805 | 17,179 | 16,337 | 16,883 | 16,337 | 15,885 | 15,963 | 15,153 | 13,957 | 14,396 | 14,941 | 15,547 | 15,147 | 14,482 | 15,087 | 14,678 | 14,225 | 14,678 | 13,514 | 13,773 | 12,121 | 11,443 | 12,623 | 13,419 | 12,755 | 14,009 | 13,758 | 14,702 | 14,716 | 15,174 | 15,778 | 15,053 | 15,767 | 15,296 | 15,824 | 15,581 | 15,459 | 15,673 | 15,117 | 14,675 | 14,333 | 13,991 | 14,177 | 13,500 | 11,753 | 12,242 | 12,522 | 11,949 | 11,711 | 11,334 | 10,761 | 10,090 | 11,823 | 12,787 | 13,123 | 12,741 | 12,592 | 12,173 | 11,821 | 12,051 | 12,295 | 11,618 | 12,227 | 11,875 | 11,781 | 11,510 | 10,793 | 11,366 | 11,340 | 12,331 | 12,208 | 12,488 | 12,156 | 12,322 | 12,567 | 12,375 | 12,462 | 13,119 | 12,506 | 12,323 | 12,205 | 12,019 | 11,750 | 11,758 | 11,421 | 11,413 | 11,026 | 10,739 | 10,419 | 10,293 | 9,973 | 9,681 | 9,900 | 10,126 | 9,989 | 9,973 | 9,544 | 9,819 | 9,819 | 9,616 | 9,009 | 9,309 | 9,884 | 10,086 | 10,188 | 9,545 | 10,016 | 10,792 | 10,611 | 10,933 | 10,948 | 10,533 | 10,697 | 10,086 |
| C000225417 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 16,096 | 16,562 | 16,608 | 17,589 | 17,466 | 16,884 | 16,406 | 16,773 | 15,948 | 16,483 | 15,963 | 15,520 | 15,596 | 14,802 | 13,642 | 14,088 | 14,609 | 15,219 | 14,811 | 14,172 | 14,767 | 14,366 | 13,935 | 14,380 | 13,237 | 13,495 | 11,884 | 11,217 | 12,378 | 13,161 | 12,523 | 13,756 | 13,495 | 14,424 | 14,453 | 14,903 | 15,497 | 14,783 | 15,486 | 15,036 | 15,556 | 15,317 | 15,197 | 15,421 | 14,874 | 14,453 | 14,102 | 13,780 | 13,966 | 13,302 | 11,583 | 12,068 | 12,346 | 11,783 | 11,552 | 11,182 | 10,619 | 9,959 | 11,671 | 12,626 | 12,960 | 12,586 | 12,441 | 12,029 | 11,684 | 11,914 | 12,157 | 11,491 | 12,096 | 11,750 | 11,659 | 11,393 | 10,686 | 11,256 | 11,232 | 12,216 | 12,097 | 12,377 | 12,050 | 12,217 | 12,463 | 12,275 | 12,364 | 13,018 | 12,413 | 12,233 | 12,119 | 11,937 | 11,672 | 11,683 | 11,350 | 11,344 | 10,962 | 10,679 | 10,363 | 10,239 | 9,923 | 9,635 | 9,854 | 10,082 | 9,947 | 9,933 | 9,508 | 9,784 | 9,786 | 9,586 | 8,983 | 9,284 | 9,859 | 10,063 | 10,167 | 9,528 | 9,999 | 10,776 | 10,598 | 10,921 | 10,939 | 10,526 | 10,693 | 10,084 |
| C000007920 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 15,697 | 16,016 | 15,674 | 16,481 | 16,543 | 16,140 | 15,949 | 16,166 | 15,484 | 16,166 | 15,484 | 15,267 | 15,639 | 14,815 | 13,355 | 13,923 | 14,815 | 15,368 | 14,861 | 14,046 | 14,753 | 14,446 | 14,046 | 14,615 | 13,140 | 13,441 | 11,719 | 10,988 | 12,283 | 13,289 | 12,633 | 14,173 | 14,276 | 15,567 | 15,699 | 16,536 | 17,431 | 17,141 | 18,501 | 17,994 | 18,328 | 17,948 | 18,321 | 18,388 | 18,074 | 17,489 | 17,096 | 16,062 | 16,039 | 14,998 | 13,251 | 13,464 | 13,755 | 12,993 | 12,505 | 11,779 | 10,779 | 9,844 | 12,131 | 13,011 | 13,220 | 12,612 | 12,395 | 11,840 | 11,611 | 11,905 | 11,866 | 11,246 | 11,920 | 11,442 | 11,431 | 10,996 | 10,006 | 10,860 | 10,902 | 11,882 | 11,923 | 12,438 | 12,086 | 12,086 | 12,555 | 12,432 | 12,626 | 13,594 | 12,799 | 12,473 | 12,218 | 12,147 | 12,066 | 12,015 | 11,383 | 11,362 | 11,046 | 10,741 | 10,292 | 10,027 | 9,762 | 9,559 | 9,870 | 9,880 | 9,820 | 9,669 | 9,184 | 9,644 | 9,604 | 9,344 | 8,813 | 8,963 | 9,725 | 10,002 | 9,973 | 9,298 | 9,869 | 10,602 | 10,505 | 10,782 | 10,436 | 10,109 | 10,307 | 9,703 |
| C000007908 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 41,514 | 41,203 | 38,818 | 39,120 | 38,381 | 37,508 | 38,580 | 36,127 | 34,089 | 35,829 | 35,133 | 32,730 | 31,520 | 30,299 | 26,945 | 27,254 | 28,980 | 28,882 | 28,270 | 26,464 | 25,031 | 24,527 | 22,671 | 23,013 | 20,621 | 22,649 | 21,624 | 20,828 | 23,299 | 25,120 | 22,186 | 24,216 | 24,690 | 28,736 | 28,125 | 29,255 | 33,316 | 33,265 | 33,793 | 31,737 | 33,698 | 32,589 | 31,534 | 29,482 | 30,070 | 27,952 | 28,083 | 27,481 | 28,213 | 26,964 | 24,806 | 25,455 | 26,328 | 24,282 | 22,786 | 21,713 | 20,084 | 17,543 | 19,393 | 20,602 | 19,628 | 19,170 | 18,245 | 17,888 | 18,378 | 18,590 | 18,444 | 17,356 | 18,145 | 17,334 | 16,823 | 16,324 | 14,791 | 16,150 | 15,686 | 17,531 | 17,430 | 16,694 | 16,545 | 16,239 | 15,576 | 15,229 | 15,585 | 15,892 | 14,358 | 14,250 | 14,007 | 13,362 | 13,354 | 13,245 | 12,710 | 12,668 | 12,428 | 12,120 | 12,037 | 11,431 | 11,083 | 10,922 | 10,513 | 10,710 | 10,687 | 10,657 | 10,167 | 10,333 | 10,099 | 10,326 | 9,668 | 9,683 | 10,273 | 10,401 | 10,416 | 9,542 | 9,785 | 10,366 | 10,107 | 10,277 | 10,149 | 10,149 | 10,277 | 9,652 |
| C000007910 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 40,487 | 40,196 | 37,865 | 38,171 | 37,474 | 36,623 | 37,675 | 35,293 | 33,297 | 35,008 | 34,337 | 32,005 | 30,814 | 29,625 | 26,341 | 26,654 | 28,354 | 28,272 | 27,667 | 25,902 | 24,516 | 24,021 | 22,207 | 22,553 | 20,210 | 22,200 | 21,211 | 20,437 | 22,859 | 24,639 | 21,779 | 23,772 | 24,235 | 28,220 | 27,618 | 28,730 | 32,730 | 32,679 | 33,211 | 31,207 | 33,143 | 32,052 | 31,016 | 29,014 | 29,593 | 27,513 | 27,644 | 27,065 | 27,789 | 26,569 | 24,448 | 25,088 | 25,954 | 23,946 | 22,465 | 21,423 | 19,822 | 17,302 | 19,139 | 20,343 | 19,375 | 18,938 | 18,031 | 17,684 | 18,165 | 18,367 | 18,243 | 17,172 | 17,953 | 17,150 | 16,648 | 16,158 | 14,641 | 15,993 | 15,528 | 17,358 | 17,267 | 16,539 | 16,400 | 16,102 | 15,447 | 15,110 | 15,467 | 15,765 | 14,247 | 14,143 | 13,900 | 13,269 | 13,261 | 13,160 | 12,623 | 12,590 | 12,349 | 12,049 | 11,966 | 11,374 | 11,025 | 10,865 | 10,462 | 10,668 | 10,637 | 10,615 | 10,122 | 10,289 | 10,069 | 10,289 | 9,644 | 9,659 | 10,251 | 10,375 | 10,390 | 9,517 | 9,770 | 10,346 | 10,093 | 10,264 | 10,143 | 10,143 | 10,272 | 9,650 |
| C000007899 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 14,007 | 14,055 | 13,564 | 13,375 | 13,394 | 13,252 | 13,450 | 13,422 | 13,347 | 13,384 | 13,243 | 12,922 | 12,507 | 12,762 | 12,692 | 12,770 | 12,552 | 12,525 | 12,404 | 12,154 | 12,102 | 11,947 | 12,059 | 11,929 | 12,119 | 11,774 | 11,636 | 11,446 | 11,437 | 11,126 | 11,195 | 11,402 | 11,411 | 11,273 | 11,178 | 11,394 | 11,411 | 11,135 | 11,048 | 11,575 | 11,342 | 11,256 | 11,342 | 11,488 | 11,377 | 11,205 | 11,042 | 11,256 | 11,334 | 11,298 | 10,965 | 10,873 | 10,965 | 10,940 | 10,926 | 10,968 | 10,761 | 10,893 | 10,968 | 11,083 | 10,943 | 10,995 | 10,955 | 10,748 | 10,564 | 10,748 | 10,765 | 10,653 | 10,845 | 10,868 | 10,860 | 10,964 | 10,725 | 10,834 | 10,865 | 10,943 | 10,687 | 10,819 | 10,741 | 10,733 | 10,686 | 10,640 | 10,632 | 10,694 | 10,617 | 10,588 | 10,511 | 10,395 | 10,333 | 10,364 | 10,366 | 10,335 | 10,259 | 10,174 | 10,136 | 10,121 | 10,113 | 10,096 | 10,027 | 9,997 | 9,989 | 9,936 | 9,898 | 9,974 | 9,921 | 9,951 | 9,746 | 9,799 | 9,944 | 10,177 | 10,095 | 9,783 | 9,924 | 10,221 | 10,131 | 10,336 | 10,285 | 10,365 | 10,336 | 10,007 |
| C000007901 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 13,662 | 13,716 | 13,244 | 13,050 | 13,078 | 12,939 | 13,143 | 13,115 | 13,041 | 13,087 | 12,939 | 12,634 | 12,226 | 12,474 | 12,423 | 12,500 | 12,285 | 12,259 | 12,139 | 11,909 | 11,858 | 11,705 | 11,816 | 11,697 | 11,884 | 11,543 | 11,407 | 11,228 | 11,220 | 10,922 | 10,990 | 11,194 | 11,203 | 11,067 | 10,982 | 11,203 | 11,220 | 10,947 | 10,862 | 11,382 | 11,152 | 11,067 | 11,161 | 11,304 | 11,203 | 11,034 | 10,882 | 11,093 | 11,161 | 11,136 | 10,807 | 10,716 | 10,815 | 10,790 | 10,777 | 10,826 | 10,622 | 10,753 | 10,834 | 10,940 | 10,810 | 10,858 | 10,826 | 10,621 | 10,439 | 10,628 | 10,645 | 10,535 | 10,724 | 10,756 | 10,748 | 10,851 | 10,614 | 10,727 | 10,765 | 10,842 | 10,589 | 10,727 | 10,649 | 10,649 | 10,603 | 10,557 | 10,549 | 10,612 | 10,537 | 10,511 | 10,437 | 10,324 | 10,265 | 10,297 | 10,302 | 10,273 | 10,199 | 10,117 | 10,082 | 10,068 | 10,063 | 10,047 | 9,981 | 9,953 | 9,948 | 9,897 | 9,861 | 9,939 | 9,888 | 9,920 | 9,718 | 9,773 | 9,919 | 10,153 | 10,074 | 9,765 | 9,908 | 10,206 | 10,119 | 10,325 | 10,276 | 10,359 | 10,332 | 10,005 |
| C000007902 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 33,614 | 34,437 | 32,533 | 32,835 | 32,149 | 31,389 | 31,020 | 29,947 | 28,537 | 29,756 | 28,828 | 27,373 | 26,927 | 25,752 | 23,603 | 24,099 | 25,309 | 25,726 | 24,921 | 23,382 | 23,287 | 22,924 | 22,120 | 22,673 | 21,333 | 22,640 | 21,443 | 19,840 | 21,859 | 22,787 | 20,871 | 22,748 | 22,708 | 24,884 | 23,994 | 24,738 | 26,089 | 24,973 | 25,147 | 23,505 | 24,655 | 23,929 | 23,378 | 22,850 | 22,693 | 21,540 | 20,640 | 20,089 | 20,297 | 19,545 | 17,621 | 18,102 | 18,820 | 17,559 | 16,623 | 16,299 | 15,563 | 13,794 | 15,742 | 17,159 | 17,166 | 16,668 | 16,082 | 15,748 | 15,458 | 15,709 | 15,493 | 14,472 | 15,454 | 14,855 | 14,568 | 14,122 | 13,070 | 14,369 | 14,087 | 15,121 | 15,037 | 14,568 | 14,044 | 13,960 | 13,635 | 13,587 | 13,942 | 14,482 | 13,702 | 13,553 | 13,151 | 12,856 | 12,595 | 12,561 | 12,314 | 12,240 | 12,070 | 11,951 | 11,940 | 11,487 | 11,277 | 11,060 | 10,671 | 10,868 | 10,868 | 10,858 | 10,471 | 10,449 | 10,269 | 10,232 | 9,586 | 9,602 | 10,105 | 10,271 | 10,237 | 9,445 | 9,688 | 10,314 | 10,107 | 10,310 | 10,179 | 10,087 | 10,252 | 9,695 |
| C000007903 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 33,124 | 33,936 | 32,059 | 32,361 | 31,693 | 30,951 | 30,582 | 29,535 | 28,143 | 29,353 | 28,443 | 27,005 | 26,568 | 25,421 | 23,295 | 23,791 | 24,994 | 25,403 | 24,614 | 23,091 | 22,995 | 22,649 | 21,853 | 22,407 | 21,083 | 22,383 | 21,200 | 19,618 | 21,608 | 22,538 | 20,635 | 22,500 | 22,467 | 24,615 | 23,740 | 24,477 | 25,823 | 24,716 | 24,898 | 23,275 | 24,413 | 23,700 | 23,155 | 22,633 | 22,484 | 21,350 | 20,455 | 19,911 | 20,120 | 19,376 | 17,469 | 17,951 | 18,663 | 17,420 | 16,488 | 16,170 | 15,439 | 13,686 | 15,625 | 17,033 | 17,047 | 16,547 | 15,973 | 15,637 | 15,353 | 15,605 | 15,388 | 14,377 | 15,356 | 14,761 | 14,480 | 14,038 | 12,996 | 14,289 | 14,012 | 15,044 | 14,959 | 14,495 | 13,974 | 13,890 | 13,571 | 13,522 | 13,878 | 14,415 | 13,643 | 13,494 | 13,101 | 12,804 | 12,548 | 12,514 | 12,266 | 12,197 | 12,032 | 11,912 | 11,907 | 11,457 | 11,246 | 11,034 | 10,643 | 10,841 | 10,841 | 10,830 | 10,446 | 10,430 | 10,249 | 10,212 | 9,567 | 9,583 | 10,089 | 10,258 | 10,224 | 9,432 | 9,676 | 10,307 | 10,098 | 10,303 | 10,176 | 10,083 | 10,249 | 9,693 |
| C000007904 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 32,788 | 33,597 | 31,748 | 32,047 | 31,385 | 30,651 | 30,295 | 29,250 | 27,881 | 29,079 | 28,178 | 26,764 | 26,331 | 25,195 | 23,089 | 23,581 | 24,772 | 25,178 | 24,404 | 22,895 | 22,809 | 22,466 | 21,677 | 22,226 | 20,914 | 22,200 | 21,035 | 19,464 | 21,447 | 22,362 | 20,482 | 22,332 | 22,300 | 24,439 | 23,570 | 24,302 | 25,637 | 24,543 | 24,724 | 23,112 | 24,249 | 23,541 | 23,000 | 22,489 | 22,341 | 21,215 | 20,326 | 19,785 | 19,993 | 19,263 | 17,366 | 17,846 | 18,554 | 17,318 | 16,398 | 16,082 | 15,354 | 13,618 | 15,547 | 16,947 | 16,954 | 16,463 | 15,891 | 15,563 | 15,280 | 15,531 | 15,321 | 14,314 | 15,289 | 14,696 | 14,423 | 13,977 | 12,945 | 14,232 | 13,955 | 14,984 | 14,900 | 14,437 | 13,924 | 13,840 | 13,522 | 13,474 | 13,834 | 14,371 | 13,599 | 13,455 | 13,058 | 12,768 | 12,511 | 12,480 | 12,237 | 12,167 | 12,000 | 11,884 | 11,876 | 11,427 | 11,221 | 11,007 | 10,622 | 10,821 | 10,823 | 10,815 | 10,432 | 10,413 | 10,235 | 10,200 | 9,558 | 9,576 | 10,080 | 10,247 | 10,215 | 9,428 | 9,672 | 10,299 | 10,094 | 10,300 | 10,171 | 10,081 | 10,248 | 9,693 |
| C000195946 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 20,814 | 22,696 | 20,442 | 20,757 | 20,607 | 20,922 | 18,995 | 19,177 | 18,269 | 19,655 | 18,979 | 17,972 | 18,698 | 16,664 | 15,278 | 16,394 | 17,429 | 18,353 | 17,310 | 16,006 | 16,165 | 16,451 | 17,278 | 17,580 | 16,022 | 17,119 | 16,730 | 15,082 | 16,683 | 17,025 | 15,408 | 16,807 | 16,776 | 18,621 | 18,391 | 18,206 | 20,144 | 19,700 | 20,559 | 19,728 | 20,328 | 19,891 | 20,634 | 20,255 | 20,215 | 19,796 | 19,607 | 18,459 | 17,582 | 16,188 | 13,665 | 13,379 | 13,848 | 13,106 | 12,757 | 12,330 | 11,566 | 10,169 | 13,003 | 14,193 | 14,672 | 14,267 | 13,706 | 13,352 | 13,083 | 13,754 | 13,686 | 12,784 | 13,869 | 13,406 | 13,698 | 13,028 | 11,700 | 13,285 | 13,084 | 14,675 | 15,037 | 14,422 | 14,177 | 14,078 | 13,273 | 13,164 | 13,001 | 13,526 | 13,182 | 13,231 | 12,868 | 12,758 | 12,015 | 12,167 | 12,082 | 11,677 | 11,922 | 11,795 | 11,778 | 11,559 | 11,508 | 11,202 | 10,079 | 10,580 | 10,467 | 10,289 | 9,716 | 9,716 | 9,506 | 9,361 | 8,674 | 8,674 | 9,514 | 10,022 | 9,710 | 9,198 | 9,673 | 10,327 | 10,453 | 10,379 | 10,156 | 10,423 | 10,253 | 9,681 |
| C000225418 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 20,310 | 22,145 | 19,965 | 20,258 | 20,128 | 20,437 | 18,562 | 18,740 | 17,849 | 19,209 | 18,562 | 17,574 | 18,286 | 16,306 | 14,944 | 16,056 | 17,058 | 17,967 | 16,941 | 15,675 | 15,831 | 16,128 | 16,941 | 17,238 | 15,706 | 16,794 | 16,412 | 14,789 | 16,366 | 16,718 | 15,140 | 16,503 | 16,472 | 18,289 | 18,077 | 17,880 | 19,788 | 19,362 | 20,221 | 19,402 | 19,993 | 19,564 | 20,308 | 19,922 | 19,896 | 19,483 | 19,311 | 18,181 | 17,320 | 15,951 | 13,468 | 13,189 | 13,653 | 12,925 | 12,583 | 12,164 | 11,413 | 10,037 | 12,836 | 14,014 | 14,490 | 14,093 | 13,541 | 13,194 | 12,932 | 13,598 | 13,533 | 12,644 | 13,720 | 13,265 | 13,557 | 12,896 | 11,583 | 13,156 | 12,960 | 14,539 | 14,900 | 14,293 | 14,054 | 13,959 | 13,163 | 13,058 | 12,899 | 13,422 | 13,084 | 13,135 | 12,777 | 12,671 | 11,935 | 12,089 | 12,007 | 11,607 | 11,853 | 11,729 | 11,715 | 11,499 | 11,451 | 11,149 | 10,033 | 10,534 | 10,424 | 10,249 | 9,680 | 9,682 | 9,475 | 9,332 | 8,649 | 8,651 | 9,490 | 9,999 | 9,690 | 9,180 | 9,657 | 10,312 | 10,440 | 10,368 | 10,148 | 10,417 | 10,248 | 9,678 |
| MSCI All Country World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,183 | 24,770 | 23,877 | 24,425 | 23,870 | 23,279 | 22,910 | 22,411 | 21,536 | 22,271 | 21,593 | 20,704 | 20,584 | 19,640 | 17,981 | 18,538 | 19,338 | 19,894 | 19,191 | 18,138 | 18,334 | 18,075 | 17,534 | 18,051 | 16,844 | 17,534 | 16,272 | 15,346 | 16,970 | 17,619 | 16,469 | 17,985 | 17,964 | 19,527 | 19,113 | 19,620 | 20,633 | 19,839 | 20,329 | 19,342 | 20,175 | 19,682 | 19,548 | 19,294 | 18,998 | 18,202 | 17,729 | 17,327 | 17,406 | 16,634 | 14,809 | 15,178 | 15,683 | 14,779 | 14,036 | 13,602 | 13,035 | 11,774 | 13,611 | 14,807 | 14,973 | 14,463 | 14,119 | 13,742 | 13,459 | 13,786 | 13,746 | 12,901 | 13,715 | 13,267 | 13,102 | 12,761 | 11,827 | 12,723 | 12,540 | 13,555 | 13,497 | 13,392 | 13,000 | 13,070 | 13,054 | 12,931 | 13,213 | 13,793 | 13,056 | 12,849 | 12,605 | 12,348 | 12,114 | 12,068 | 11,740 | 11,687 | 11,434 | 11,259 | 11,123 | 10,819 | 10,531 | 10,309 | 10,231 | 10,408 | 10,344 | 10,310 | 9,884 | 9,944 | 9,931 | 9,787 | 9,112 | 9,175 | 9,764 | 9,943 | 10,026 | 9,296 | 9,646 | 10,355 | 10,266 | 10,514 | 10,528 | 10,231 | 10,392 | 9,844 |
| MSCI All Country World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,183 | 24,770 | 23,877 | 24,425 | 23,870 | 23,279 | 22,910 | 22,411 | 21,536 | 22,271 | 21,593 | 20,704 | 20,584 | 19,640 | 17,981 | 18,538 | 19,338 | 19,894 | 19,191 | 18,138 | 18,334 | 18,075 | 17,534 | 18,051 | 16,844 | 17,534 | 16,272 | 15,346 | 16,970 | 17,619 | 16,469 | 17,985 | 17,964 | 19,527 | 19,113 | 19,620 | 20,633 | 19,839 | 20,329 | 19,342 | 20,175 | 19,682 | 19,548 | 19,294 | 18,998 | 18,202 | 17,729 | 17,327 | 17,406 | 16,634 | 14,809 | 15,178 | 15,683 | 14,779 | 14,036 | 13,602 | 13,035 | 11,774 | 13,611 | 14,807 | 14,973 | 14,463 | 14,119 | 13,742 | 13,459 | 13,786 | 13,746 | 12,901 | 13,715 | 13,267 | 13,102 | 12,761 | 11,827 | 12,723 | 12,540 | 13,555 | 13,497 | 13,392 | 13,000 | 13,070 | 13,054 | 12,931 | 13,213 | 13,793 | 13,056 | 12,849 | 12,605 | 12,348 | 12,114 | 12,068 | 11,740 | 11,687 | 11,434 | 11,259 | 11,123 | 10,819 | 10,531 | 10,309 | 10,231 | 10,408 | 10,344 | 10,310 | 9,884 | 9,944 | 9,931 | 9,787 | 9,112 | 9,175 | 9,764 | 9,943 | 10,026 | 9,296 | 9,646 | 10,355 | 10,266 | 10,514 | 10,528 | 10,231 | 10,392 | 9,844 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B103">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B107">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B111">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B115">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B119">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 3000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B123">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 32,604 | 33,632 | 31,534 | 31,767 | 31,123 | 30,460 | 29,904 | 29,006 | 27,698 | 28,973 | 28,067 | 26,626 | 26,334 | 25,008 | 22,875 | 23,497 | 24,673 | 25,158 | 24,288 | 22,735 | 22,647 | 22,408 | 21,825 | 22,347 | 20,907 | 22,208 | 21,106 | 19,506 | 21,500 | 22,333 | 20,418 | 22,282 | 22,312 | 24,512 | 23,741 | 24,355 | 25,877 | 24,897 | 25,282 | 23,681 | 24,793 | 24,105 | 23,705 | 23,134 | 23,029 | 21,900 | 21,142 | 20,501 | 20,593 | 19,707 | 17,569 | 17,957 | 18,635 | 17,376 | 16,443 | 16,075 | 15,259 | 13,475 | 15,623 | 17,016 | 17,035 | 16,557 | 15,950 | 15,614 | 15,345 | 15,664 | 15,435 | 14,422 | 15,420 | 14,828 | 14,614 | 14,118 | 13,002 | 14,336 | 14,055 | 15,172 | 15,147 | 14,633 | 14,163 | 14,071 | 13,684 | 13,633 | 13,912 | 14,444 | 13,721 | 13,585 | 13,185 | 12,903 | 12,596 | 12,572 | 12,339 | 12,229 | 12,105 | 11,978 | 11,970 | 11,541 | 11,327 | 11,111 | 10,635 | 10,870 | 10,853 | 10,825 | 10,412 | 10,391 | 10,208 | 10,145 | 9,478 | 9,481 | 10,048 | 10,258 | 10,202 | 9,455 | 9,739 | 10,365 | 10,194 | 10,368 | 10,226 | 10,180 | 10,285 | 9,722 |
| Russell 3000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B127">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 32,604 | 33,632 | 31,534 | 31,767 | 31,123 | 30,460 | 29,904 | 29,006 | 27,698 | 28,973 | 28,067 | 26,626 | 26,334 | 25,008 | 22,875 | 23,497 | 24,673 | 25,158 | 24,288 | 22,735 | 22,647 | 22,408 | 21,825 | 22,347 | 20,907 | 22,208 | 21,106 | 19,506 | 21,500 | 22,333 | 20,418 | 22,282 | 22,312 | 24,512 | 23,741 | 24,355 | 25,877 | 24,897 | 25,282 | 23,681 | 24,793 | 24,105 | 23,705 | 23,134 | 23,029 | 21,900 | 21,142 | 20,501 | 20,593 | 19,707 | 17,569 | 17,957 | 18,635 | 17,376 | 16,443 | 16,075 | 15,259 | 13,475 | 15,623 | 17,016 | 17,035 | 16,557 | 15,950 | 15,614 | 15,345 | 15,664 | 15,435 | 14,422 | 15,420 | 14,828 | 14,614 | 14,118 | 13,002 | 14,336 | 14,055 | 15,172 | 15,147 | 14,633 | 14,163 | 14,071 | 13,684 | 13,633 | 13,912 | 14,444 | 13,721 | 13,585 | 13,185 | 12,903 | 12,596 | 12,572 | 12,339 | 12,229 | 12,105 | 11,978 | 11,970 | 11,541 | 11,327 | 11,111 | 10,635 | 10,870 | 10,853 | 10,825 | 10,412 | 10,391 | 10,208 | 10,145 | 9,478 | 9,481 | 10,048 | 10,258 | 10,202 | 9,455 | 9,739 | 10,365 | 10,194 | 10,368 | 10,226 | 10,180 | 10,285 | 9,722 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B131">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B135">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B139">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B143">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B147">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B151">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| FTSE World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FTSE World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 26,336 | 27,001 | 25,946 | 26,496 | 26,028 | 25,346 | 24,906 | 24,374 | 23,369 | 24,240 | 23,469 | 22,530 | 22,326 | 21,271 | 19,417 | 19,997 | 20,872 | 21,405 | 20,689 | 19,548 | 19,701 | 19,368 | 18,787 | 19,269 | 17,979 | 18,728 | 17,434 | 16,302 | 18,003 | 18,740 | 17,419 | 19,124 | 19,060 | 20,769 | 20,222 | 20,707 | 21,804 | 20,870 | 21,363 | 20,301 | 21,187 | 20,678 | 20,391 | 20,125 | 19,814 | 18,938 | 18,323 | 17,877 | 18,027 | 17,217 | 15,232 | 15,698 | 16,225 | 15,256 | 14,536 | 14,128 | 13,483 | 12,163 | 14,060 | 15,352 | 15,496 | 14,984 | 14,609 | 14,218 | 13,892 | 14,205 | 14,149 | 13,275 | 14,077 | 13,598 | 13,436 | 13,078 | 12,131 | 13,067 | 12,911 | 13,940 | 13,846 | 13,715 | 13,290 | 13,335 | 13,317 | 13,177 | 13,450 | 14,015 | 13,296 | 13,084 | 12,817 | 12,563 | 12,306 | 12,265 | 11,958 | 11,902 | 11,639 | 11,454 | 11,317 | 11,000 | 10,716 | 10,464 | 10,363 | 10,538 | 10,472 | 10,452 | 10,015 | 10,090 | 10,061 | 9,906 | 9,227 | 9,282 | 9,863 | 10,041 | 10,106 | 9,367 | 9,722 | 10,411 | 10,280 | 10,515 | 10,503 | 10,231 | 10,390 | 9,835 |
| FTSE World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FTSE World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 26,336 | 27,001 | 25,946 | 26,496 | 26,028 | 25,346 | 24,906 | 24,374 | 23,369 | 24,240 | 23,469 | 22,530 | 22,326 | 21,271 | 19,417 | 19,997 | 20,872 | 21,405 | 20,689 | 19,548 | 19,701 | 19,368 | 18,787 | 19,269 | 17,979 | 18,728 | 17,434 | 16,302 | 18,003 | 18,740 | 17,419 | 19,124 | 19,060 | 20,769 | 20,222 | 20,707 | 21,804 | 20,870 | 21,363 | 20,301 | 21,187 | 20,678 | 20,391 | 20,125 | 19,814 | 18,938 | 18,323 | 17,877 | 18,027 | 17,217 | 15,232 | 15,698 | 16,225 | 15,256 | 14,536 | 14,128 | 13,483 | 12,163 | 14,060 | 15,352 | 15,496 | 14,984 | 14,609 | 14,218 | 13,892 | 14,205 | 14,149 | 13,275 | 14,077 | 13,598 | 13,436 | 13,078 | 12,131 | 13,067 | 12,911 | 13,940 | 13,846 | 13,715 | 13,290 | 13,335 | 13,317 | 13,177 | 13,450 | 14,015 | 13,296 | 13,084 | 12,817 | 12,563 | 12,306 | 12,265 | 11,958 | 11,902 | 11,639 | 11,454 | 11,317 | 11,000 | 10,716 | 10,464 | 10,363 | 10,538 | 10,472 | 10,452 | 10,015 | 10,090 | 10,061 | 9,906 | 9,227 | 9,282 | 9,863 | 10,041 | 10,106 | 9,367 | 9,722 | 10,411 | 10,280 | 10,515 | 10,503 | 10,231 | 10,390 | 9,835 |
| FTSE World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FTSE World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 26,336 | 27,001 | 25,946 | 26,496 | 26,028 | 25,346 | 24,906 | 24,374 | 23,369 | 24,240 | 23,469 | 22,530 | 22,326 | 21,271 | 19,417 | 19,997 | 20,872 | 21,405 | 20,689 | 19,548 | 19,701 | 19,368 | 18,787 | 19,269 | 17,979 | 18,728 | 17,434 | 16,302 | 18,003 | 18,740 | 17,419 | 19,124 | 19,060 | 20,769 | 20,222 | 20,707 | 21,804 | 20,870 | 21,363 | 20,301 | 21,187 | 20,678 | 20,391 | 20,125 | 19,814 | 18,938 | 18,323 | 17,877 | 18,027 | 17,217 | 15,232 | 15,698 | 16,225 | 15,256 | 14,536 | 14,128 | 13,483 | 12,163 | 14,060 | 15,352 | 15,496 | 14,984 | 14,609 | 14,218 | 13,892 | 14,205 | 14,149 | 13,275 | 14,077 | 13,598 | 13,436 | 13,078 | 12,131 | 13,067 | 12,911 | 13,940 | 13,846 | 13,715 | 13,290 | 13,335 | 13,317 | 13,177 | 13,450 | 14,015 | 13,296 | 13,084 | 12,817 | 12,563 | 12,306 | 12,265 | 11,958 | 11,902 | 11,639 | 11,454 | 11,317 | 11,000 | 10,716 | 10,464 | 10,363 | 10,538 | 10,472 | 10,452 | 10,015 | 10,090 | 10,061 | 9,906 | 9,227 | 9,282 | 9,863 | 10,041 | 10,106 | 9,367 | 9,722 | 10,411 | 10,280 | 10,515 | 10,503 | 10,231 | 10,390 | 9,835 |
| MSCI EAFE Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 16,598 | 16,985 | 17,082 | 18,064 | 17,899 | 17,335 | 16,841 | 17,117 | 16,479 | 16,912 | 16,373 | 16,079 | 15,987 | 15,181 | 13,891 | 14,478 | 14,990 | 15,587 | 15,099 | 14,442 | 15,080 | 14,666 | 14,311 | 14,616 | 13,521 | 13,510 | 12,143 | 11,523 | 12,712 | 13,346 | 12,713 | 14,013 | 13,909 | 14,871 | 14,776 | 15,042 | 15,805 | 15,035 | 15,769 | 15,391 | 15,851 | 15,576 | 15,460 | 15,636 | 15,142 | 14,700 | 14,369 | 14,054 | 14,205 | 13,574 | 11,752 | 12,241 | 12,568 | 11,953 | 11,681 | 11,296 | 10,825 | 10,168 | 11,734 | 12,900 | 13,176 | 12,761 | 12,619 | 12,181 | 11,842 | 12,157 | 12,313 | 11,623 | 12,210 | 11,876 | 11,801 | 11,508 | 10,798 | 11,349 | 11,364 | 12,346 | 12,240 | 12,481 | 12,181 | 12,332 | 12,615 | 12,334 | 12,560 | 13,154 | 12,526 | 12,328 | 12,200 | 12,017 | 11,726 | 11,730 | 11,401 | 11,421 | 11,017 | 10,744 | 10,456 | 10,308 | 10,018 | 9,687 | 9,883 | 10,090 | 9,967 | 9,960 | 9,480 | 9,809 | 9,899 | 9,620 | 9,033 | 9,201 | 9,919 | 10,054 | 10,213 | 9,472 | 9,979 | 10,772 | 10,552 | 10,860 | 10,916 | 10,488 | 10,650 | 10,049 |
| MSCI EAFE Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 16,598 | 16,985 | 17,082 | 18,064 | 17,899 | 17,335 | 16,841 | 17,117 | 16,479 | 16,912 | 16,373 | 16,079 | 15,987 | 15,181 | 13,891 | 14,478 | 14,990 | 15,587 | 15,099 | 14,442 | 15,080 | 14,666 | 14,311 | 14,616 | 13,521 | 13,510 | 12,143 | 11,523 | 12,712 | 13,346 | 12,713 | 14,013 | 13,909 | 14,871 | 14,776 | 15,042 | 15,805 | 15,035 | 15,769 | 15,391 | 15,851 | 15,576 | 15,460 | 15,636 | 15,142 | 14,700 | 14,369 | 14,054 | 14,205 | 13,574 | 11,752 | 12,241 | 12,568 | 11,953 | 11,681 | 11,296 | 10,825 | 10,168 | 11,734 | 12,900 | 13,176 | 12,761 | 12,619 | 12,181 | 11,842 | 12,157 | 12,313 | 11,623 | 12,210 | 11,876 | 11,801 | 11,508 | 10,798 | 11,349 | 11,364 | 12,346 | 12,240 | 12,481 | 12,181 | 12,332 | 12,615 | 12,334 | 12,560 | 13,154 | 12,526 | 12,328 | 12,200 | 12,017 | 11,726 | 11,730 | 11,401 | 11,421 | 11,017 | 10,744 | 10,456 | 10,308 | 10,018 | 9,687 | 9,883 | 10,090 | 9,967 | 9,960 | 9,480 | 9,809 | 9,899 | 9,620 | 9,033 | 9,201 | 9,919 | 10,054 | 10,213 | 9,472 | 9,979 | 10,772 | 10,552 | 10,860 | 10,916 | 10,488 | 10,650 | 10,049 |
| MSCI ACWI ex USA Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI ex USA Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 15,985 | 16,302 | 16,451 | 17,300 | 16,846 | 16,379 | 16,009 | 16,024 | 15,572 | 15,857 | 15,376 | 14,996 | 15,147 | 14,422 | 13,231 | 13,801 | 14,251 | 14,925 | 14,342 | 13,726 | 14,244 | 14,001 | 13,666 | 14,164 | 13,101 | 13,200 | 11,806 | 11,464 | 12,736 | 13,160 | 12,724 | 13,922 | 13,822 | 14,748 | 14,725 | 15,022 | 15,597 | 14,978 | 15,684 | 15,319 | 15,825 | 15,530 | 15,790 | 15,893 | 15,411 | 14,971 | 14,784 | 14,497 | 14,465 | 13,724 | 12,096 | 12,362 | 12,674 | 12,153 | 11,635 | 11,132 | 10,779 | 10,020 | 11,716 | 12,722 | 13,073 | 12,530 | 12,421 | 12,002 | 11,701 | 12,074 | 12,222 | 11,527 | 12,181 | 11,868 | 11,797 | 11,571 | 10,758 | 11,269 | 11,163 | 12,151 | 12,096 | 12,355 | 12,066 | 12,297 | 12,588 | 12,390 | 12,613 | 13,237 | 12,538 | 12,264 | 12,165 | 11,941 | 11,723 | 11,662 | 11,248 | 11,213 | 10,860 | 10,633 | 10,370 | 10,207 | 9,858 | 9,612 | 9,840 | 9,983 | 9,862 | 9,800 | 9,338 | 9,483 | 9,646 | 9,398 | 8,692 | 8,792 | 9,434 | 9,615 | 9,818 | 9,137 | 9,582 | 10,375 | 10,403 | 10,702 | 10,872 | 10,349 | 10,519 | 9,985 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B179">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| Russell 1000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B183">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,560 | 34,522 | 32,434 | 32,663 | 31,979 | 31,238 | 30,790 | 29,804 | 28,463 | 29,728 | 28,805 | 27,329 | 26,953 | 25,685 | 23,491 | 24,073 | 25,260 | 25,710 | 24,855 | 23,283 | 23,175 | 22,891 | 22,189 | 22,730 | 21,302 | 22,617 | 21,456 | 19,863 | 21,889 | 22,763 | 20,823 | 22,727 | 22,761 | 24,989 | 24,173 | 24,855 | 26,340 | 25,315 | 25,659 | 23,994 | 25,149 | 24,442 | 23,944 | 23,359 | 23,249 | 22,061 | 21,257 | 20,658 | 20,830 | 19,985 | 17,879 | 18,321 | 19,016 | 17,716 | 16,736 | 16,374 | 15,553 | 13,738 | 15,830 | 17,238 | 17,220 | 16,736 | 16,127 | 15,792 | 15,523 | 15,813 | 15,571 | 14,550 | 15,540 | 14,937 | 14,681 | 14,200 | 13,102 | 14,415 | 14,128 | 15,204 | 15,146 | 14,642 | 14,153 | 14,062 | 13,712 | 13,666 | 13,983 | 14,516 | 13,761 | 13,609 | 13,206 | 12,910 | 12,641 | 12,601 | 12,357 | 12,271 | 12,116 | 11,990 | 11,982 | 11,536 | 11,308 | 11,100 | 10,679 | 10,891 | 10,882 | 10,868 | 10,469 | 10,446 | 10,266 | 10,210 | 9,545 | 9,549 | 10,092 | 10,277 | 10,243 | 9,476 | 9,743 | 10,367 | 10,171 | 10,365 | 10,231 | 10,159 | 10,287 | 9,725 |
| MSCI All Country World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,183 | 24,770 | 23,877 | 24,425 | 23,870 | 23,279 | 22,910 | 22,411 | 21,536 | 22,271 | 21,593 | 20,704 | 20,584 | 19,640 | 17,981 | 18,538 | 19,338 | 19,894 | 19,191 | 18,138 | 18,334 | 18,075 | 17,534 | 18,051 | 16,844 | 17,534 | 16,272 | 15,346 | 16,970 | 17,619 | 16,469 | 17,985 | 17,964 | 19,527 | 19,113 | 19,620 | 20,633 | 19,839 | 20,329 | 19,342 | 20,175 | 19,682 | 19,548 | 19,294 | 18,998 | 18,202 | 17,729 | 17,327 | 17,406 | 16,634 | 14,809 | 15,178 | 15,683 | 14,779 | 14,036 | 13,602 | 13,035 | 11,774 | 13,611 | 14,807 | 14,973 | 14,463 | 14,119 | 13,742 | 13,459 | 13,786 | 13,746 | 12,901 | 13,715 | 13,267 | 13,102 | 12,761 | 11,827 | 12,723 | 12,540 | 13,555 | 13,497 | 13,392 | 13,000 | 13,070 | 13,054 | 12,931 | 13,213 | 13,793 | 13,056 | 12,849 | 12,605 | 12,348 | 12,114 | 12,068 | 11,740 | 11,687 | 11,434 | 11,259 | 11,123 | 10,819 | 10,531 | 10,309 | 10,231 | 10,408 | 10,344 | 10,310 | 9,884 | 9,944 | 9,931 | 9,787 | 9,112 | 9,175 | 9,764 | 9,943 | 10,026 | 9,296 | 9,646 | 10,355 | 10,266 | 10,514 | 10,528 | 10,231 | 10,392 | 9,844 |
| MSCI All Country World Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI All Country World Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,183 | 24,770 | 23,877 | 24,425 | 23,870 | 23,279 | 22,910 | 22,411 | 21,536 | 22,271 | 21,593 | 20,704 | 20,584 | 19,640 | 17,981 | 18,538 | 19,338 | 19,894 | 19,191 | 18,138 | 18,334 | 18,075 | 17,534 | 18,051 | 16,844 | 17,534 | 16,272 | 15,346 | 16,970 | 17,619 | 16,469 | 17,985 | 17,964 | 19,527 | 19,113 | 19,620 | 20,633 | 19,839 | 20,329 | 19,342 | 20,175 | 19,682 | 19,548 | 19,294 | 18,998 | 18,202 | 17,729 | 17,327 | 17,406 | 16,634 | 14,809 | 15,178 | 15,683 | 14,779 | 14,036 | 13,602 | 13,035 | 11,774 | 13,611 | 14,807 | 14,973 | 14,463 | 14,119 | 13,742 | 13,459 | 13,786 | 13,746 | 12,901 | 13,715 | 13,267 | 13,102 | 12,761 | 11,827 | 12,723 | 12,540 | 13,555 | 13,497 | 13,392 | 13,000 | 13,070 | 13,054 | 12,931 | 13,213 | 13,793 | 13,056 | 12,849 | 12,605 | 12,348 | 12,114 | 12,068 | 11,740 | 11,687 | 11,434 | 11,259 | 11,123 | 10,819 | 10,531 | 10,309 | 10,231 | 10,408 | 10,344 | 10,310 | 9,884 | 9,944 | 9,931 | 9,787 | 9,112 | 9,175 | 9,764 | 9,943 | 10,026 | 9,296 | 9,646 | 10,355 | 10,266 | 10,514 | 10,528 | 10,231 | 10,392 | 9,844 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B195">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B199">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B203">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,254 | 35,090 | 33,145 | 33,448 | 32,749 | 31,973 | 31,589 | 30,494 | 29,054 | 30,291 | 29,347 | 27,859 | 27,399 | 26,208 | 24,015 | 24,531 | 25,759 | 26,176 | 25,361 | 23,789 | 23,686 | 23,322 | 22,496 | 23,059 | 21,696 | 23,022 | 21,804 | 20,170 | 22,217 | 23,161 | 21,206 | 23,114 | 23,071 | 25,276 | 24,371 | 25,123 | 26,494 | 25,357 | 25,534 | 23,863 | 25,026 | 24,288 | 23,724 | 23,183 | 23,022 | 21,856 | 20,939 | 20,377 | 20,585 | 19,823 | 17,867 | 18,355 | 19,080 | 17,801 | 16,850 | 16,522 | 15,771 | 13,979 | 15,949 | 17,379 | 17,386 | 16,877 | 16,286 | 15,940 | 15,648 | 15,899 | 15,674 | 14,642 | 15,636 | 15,027 | 14,741 | 14,282 | 13,223 | 14,535 | 14,245 | 15,290 | 15,203 | 14,724 | 14,195 | 14,108 | 13,777 | 13,724 | 14,082 | 14,621 | 13,829 | 13,677 | 13,270 | 12,967 | 12,705 | 12,666 | 12,411 | 12,334 | 12,163 | 12,039 | 12,025 | 11,566 | 11,351 | 11,131 | 10,733 | 10,933 | 10,931 | 10,915 | 10,527 | 10,500 | 10,315 | 10,275 | 9,622 | 9,635 | 10,138 | 10,301 | 10,270 | 9,471 | 9,712 | 10,335 | 10,123 | 10,323 | 10,192 | 10,095 | 10,257 | 9,700 |
| Russell 3000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B207">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 32,604 | 33,632 | 31,534 | 31,767 | 31,123 | 30,460 | 29,904 | 29,006 | 27,698 | 28,973 | 28,067 | 26,626 | 26,334 | 25,008 | 22,875 | 23,497 | 24,673 | 25,158 | 24,288 | 22,735 | 22,647 | 22,408 | 21,825 | 22,347 | 20,907 | 22,208 | 21,106 | 19,506 | 21,500 | 22,333 | 20,418 | 22,282 | 22,312 | 24,512 | 23,741 | 24,355 | 25,877 | 24,897 | 25,282 | 23,681 | 24,793 | 24,105 | 23,705 | 23,134 | 23,029 | 21,900 | 21,142 | 20,501 | 20,593 | 19,707 | 17,569 | 17,957 | 18,635 | 17,376 | 16,443 | 16,075 | 15,259 | 13,475 | 15,623 | 17,016 | 17,035 | 16,557 | 15,950 | 15,614 | 15,345 | 15,664 | 15,435 | 14,422 | 15,420 | 14,828 | 14,614 | 14,118 | 13,002 | 14,336 | 14,055 | 15,172 | 15,147 | 14,633 | 14,163 | 14,071 | 13,684 | 13,633 | 13,912 | 14,444 | 13,721 | 13,585 | 13,185 | 12,903 | 12,596 | 12,572 | 12,339 | 12,229 | 12,105 | 11,978 | 11,970 | 11,541 | 11,327 | 11,111 | 10,635 | 10,870 | 10,853 | 10,825 | 10,412 | 10,391 | 10,208 | 10,145 | 9,478 | 9,481 | 10,048 | 10,258 | 10,202 | 9,455 | 9,739 | 10,365 | 10,194 | 10,368 | 10,226 | 10,180 | 10,285 | 9,722 |
| Russell 3000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B211">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 32,604 | 33,632 | 31,534 | 31,767 | 31,123 | 30,460 | 29,904 | 29,006 | 27,698 | 28,973 | 28,067 | 26,626 | 26,334 | 25,008 | 22,875 | 23,497 | 24,673 | 25,158 | 24,288 | 22,735 | 22,647 | 22,408 | 21,825 | 22,347 | 20,907 | 22,208 | 21,106 | 19,506 | 21,500 | 22,333 | 20,418 | 22,282 | 22,312 | 24,512 | 23,741 | 24,355 | 25,877 | 24,897 | 25,282 | 23,681 | 24,793 | 24,105 | 23,705 | 23,134 | 23,029 | 21,900 | 21,142 | 20,501 | 20,593 | 19,707 | 17,569 | 17,957 | 18,635 | 17,376 | 16,443 | 16,075 | 15,259 | 13,475 | 15,623 | 17,016 | 17,035 | 16,557 | 15,950 | 15,614 | 15,345 | 15,664 | 15,435 | 14,422 | 15,420 | 14,828 | 14,614 | 14,118 | 13,002 | 14,336 | 14,055 | 15,172 | 15,147 | 14,633 | 14,163 | 14,071 | 13,684 | 13,633 | 13,912 | 14,444 | 13,721 | 13,585 | 13,185 | 12,903 | 12,596 | 12,572 | 12,339 | 12,229 | 12,105 | 11,978 | 11,970 | 11,541 | 11,327 | 11,111 | 10,635 | 10,870 | 10,853 | 10,825 | 10,412 | 10,391 | 10,208 | 10,145 | 9,478 | 9,481 | 10,048 | 10,258 | 10,202 | 9,455 | 9,739 | 10,365 | 10,194 | 10,368 | 10,226 | 10,180 | 10,285 | 9,722 |
| 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,331 | 18,719 | 18,233 | 18,670 | 18,316 | 17,940 | 17,605 | 17,308 | 16,785 | 17,303 | 16,921 | 16,588 | 16,548 | 15,849 | 14,764 | 15,132 | 15,680 | 15,989 | 15,650 | 15,144 | 15,309 | 15,142 | 14,720 | 15,137 | 14,343 | 14,717 | 13,868 | 13,451 | 14,537 | 15,039 | 14,300 | 15,162 | 15,113 | 16,132 | 16,102 | 16,430 | 17,080 | 16,697 | 16,921 | 16,420 | 16,897 | 16,660 | 16,518 | 16,343 | 16,170 | 15,709 | 15,537 | 15,412 | 15,499 | 15,071 | 13,982 | 14,215 | 14,498 | 14,028 | 13,519 | 13,232 | 12,872 | 12,014 | 13,107 | 13,671 | 13,656 | 13,377 | 13,187 | 12,958 | 12,824 | 12,874 | 12,840 | 12,295 | 12,655 | 12,403 | 12,217 | 12,027 | 11,436 | 11,850 | 11,719 | 12,312 | 12,311 | 12,222 | 12,004 | 12,049 | 12,006 | 11,973 | 12,097 | 12,458 | 12,104 | 11,966 | 11,835 | 11,687 | 11,575 | 11,507 | 11,298 | 11,272 | 11,091 | 10,954 | 10,877 | 10,669 | 10,488 | 10,348 | 10,399 | 10,539 | 10,503 | 10,486 | 10,197 | 10,161 | 10,152 | 10,048 | 9,586 | 9,599 | 9,902 | 10,024 | 10,084 | 9,630 | 9,817 | 10,244 | 10,163 | 10,355 | 10,373 | 10,210 | 10,286 | 9,990 |
| Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,432 | 11,622 | 11,500 | 11,793 | 11,637 | 11,472 | 11,210 | 11,105 | 10,920 | 11,203 | 11,101 | 11,260 | 11,291 | 10,874 | 10,403 | 10,570 | 10,846 | 10,915 | 10,923 | 10,962 | 11,083 | 11,016 | 10,743 | 11,028 | 10,699 | 10,748 | 10,366 | 10,502 | 10,977 | 11,296 | 11,026 | 11,202 | 11,130 | 11,569 | 11,900 | 12,034 | 12,299 | 12,331 | 12,294 | 12,298 | 12,405 | 12,429 | 12,291 | 12,206 | 12,166 | 12,071 | 12,223 | 12,402 | 12,492 | 12,475 | 12,353 | 12,409 | 12,416 | 12,517 | 12,332 | 12,255 | 12,198 | 11,985 | 12,056 | 11,843 | 11,620 | 11,628 | 11,634 | 11,599 | 11,661 | 11,366 | 11,341 | 11,201 | 11,005 | 11,003 | 10,795 | 10,801 | 10,688 | 10,495 | 10,433 | 10,516 | 10,584 | 10,516 | 10,514 | 10,527 | 10,452 | 10,531 | 10,464 | 10,564 | 10,687 | 10,638 | 10,652 | 10,645 | 10,696 | 10,601 | 10,556 | 10,567 | 10,486 | 10,405 | 10,411 | 10,341 | 10,321 | 10,307 | 10,556 | 10,638 | 10,644 | 10,656 | 10,589 | 10,402 | 10,400 | 10,360 | 10,266 | 10,193 | 10,055 | 10,088 | 10,114 | 10,113 | 10,045 | 10,059 | 9,990 | 10,100 | 10,124 | 10,161 | 10,114 | 10,210 |
| 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,331 | 18,719 | 18,233 | 18,670 | 18,316 | 17,940 | 17,605 | 17,308 | 16,785 | 17,303 | 16,921 | 16,588 | 16,548 | 15,849 | 14,764 | 15,132 | 15,680 | 15,989 | 15,650 | 15,144 | 15,309 | 15,142 | 14,720 | 15,137 | 14,343 | 14,717 | 13,868 | 13,451 | 14,537 | 15,039 | 14,300 | 15,162 | 15,113 | 16,132 | 16,102 | 16,430 | 17,080 | 16,697 | 16,921 | 16,420 | 16,897 | 16,660 | 16,518 | 16,343 | 16,170 | 15,709 | 15,537 | 15,412 | 15,499 | 15,071 | 13,982 | 14,215 | 14,498 | 14,028 | 13,519 | 13,232 | 12,872 | 12,014 | 13,107 | 13,671 | 13,656 | 13,377 | 13,187 | 12,958 | 12,824 | 12,874 | 12,840 | 12,295 | 12,655 | 12,403 | 12,217 | 12,027 | 11,436 | 11,850 | 11,719 | 12,312 | 12,311 | 12,222 | 12,004 | 12,049 | 12,006 | 11,973 | 12,097 | 12,458 | 12,104 | 11,966 | 11,835 | 11,687 | 11,575 | 11,507 | 11,298 | 11,272 | 11,091 | 10,954 | 10,877 | 10,669 | 10,488 | 10,348 | 10,399 | 10,539 | 10,503 | 10,486 | 10,197 | 10,161 | 10,152 | 10,048 | 9,586 | 9,599 | 9,902 | 10,024 | 10,084 | 9,630 | 9,817 | 10,244 | 10,163 | 10,355 | 10,373 | 10,210 | 10,286 | 9,990 |
| Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,432 | 11,622 | 11,500 | 11,793 | 11,637 | 11,472 | 11,210 | 11,105 | 10,920 | 11,203 | 11,101 | 11,260 | 11,291 | 10,874 | 10,403 | 10,570 | 10,846 | 10,915 | 10,923 | 10,962 | 11,083 | 11,016 | 10,743 | 11,028 | 10,699 | 10,748 | 10,366 | 10,502 | 10,977 | 11,296 | 11,026 | 11,202 | 11,130 | 11,569 | 11,900 | 12,034 | 12,299 | 12,331 | 12,294 | 12,298 | 12,405 | 12,429 | 12,291 | 12,206 | 12,166 | 12,071 | 12,223 | 12,402 | 12,492 | 12,475 | 12,353 | 12,409 | 12,416 | 12,517 | 12,332 | 12,255 | 12,198 | 11,985 | 12,056 | 11,843 | 11,620 | 11,628 | 11,634 | 11,599 | 11,661 | 11,366 | 11,341 | 11,201 | 11,005 | 11,003 | 10,795 | 10,801 | 10,688 | 10,495 | 10,433 | 10,516 | 10,584 | 10,516 | 10,514 | 10,527 | 10,452 | 10,531 | 10,464 | 10,564 | 10,687 | 10,638 | 10,652 | 10,645 | 10,696 | 10,601 | 10,556 | 10,567 | 10,486 | 10,405 | 10,411 | 10,341 | 10,321 | 10,307 | 10,556 | 10,638 | 10,644 | 10,656 | 10,589 | 10,402 | 10,400 | 10,360 | 10,266 | 10,193 | 10,055 | 10,088 | 10,114 | 10,113 | 10,045 | 10,059 | 9,990 | 10,100 | 10,124 | 10,161 | 10,114 | 10,210 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B231">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B235">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Russell 2500™ Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2500™ Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,347 | 25,250 | 22,987 | 23,203 | 22,862 | 22,921 | 21,336 | 21,661 | 20,795 | 22,289 | 21,405 | 20,301 | 20,846 | 18,828 | 17,273 | 18,390 | 19,478 | 20,274 | 19,314 | 17,798 | 18,115 | 18,355 | 19,070 | 19,528 | 17,753 | 18,876 | 18,111 | 16,526 | 18,265 | 18,764 | 17,005 | 18,801 | 18,738 | 20,483 | 20,162 | 19,938 | 21,748 | 21,057 | 21,974 | 20,947 | 21,627 | 21,147 | 21,524 | 21,273 | 21,229 | 20,413 | 20,083 | 18,853 | 18,402 | 17,100 | 14,705 | 14,443 | 14,827 | 14,184 | 13,641 | 13,258 | 12,346 | 10,778 | 13,765 | 15,025 | 15,336 | 15,018 | 14,400 | 14,130 | 13,884 | 14,462 | 14,313 | 13,365 | 14,389 | 13,902 | 14,017 | 13,385 | 12,003 | 13,480 | 13,230 | 14,725 | 14,952 | 14,337 | 14,065 | 13,964 | 13,337 | 13,305 | 13,179 | 13,744 | 13,337 | 13,292 | 12,870 | 12,673 | 12,123 | 12,225 | 12,100 | 11,805 | 11,938 | 11,847 | 11,855 | 11,576 | 11,418 | 11,200 | 10,322 | 10,759 | 10,708 | 10,623 | 10,096 | 10,100 | 9,892 | 9,748 | 8,998 | 8,936 | 9,710 | 10,122 | 9,927 | 9,402 | 9,842 | 10,461 | 10,481 | 10,554 | 10,333 | 10,517 | 10,379 | 9,795 |
| Russell 2500™ Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 2500™ Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,347 | 25,250 | 22,987 | 23,203 | 22,862 | 22,921 | 21,336 | 21,661 | 20,795 | 22,289 | 21,405 | 20,301 | 20,846 | 18,828 | 17,273 | 18,390 | 19,478 | 20,274 | 19,314 | 17,798 | 18,115 | 18,355 | 19,070 | 19,528 | 17,753 | 18,876 | 18,111 | 16,526 | 18,265 | 18,764 | 17,005 | 18,801 | 18,738 | 20,483 | 20,162 | 19,938 | 21,748 | 21,057 | 21,974 | 20,947 | 21,627 | 21,147 | 21,524 | 21,273 | 21,229 | 20,413 | 20,083 | 18,853 | 18,402 | 17,100 | 14,705 | 14,443 | 14,827 | 14,184 | 13,641 | 13,258 | 12,346 | 10,778 | 13,765 | 15,025 | 15,336 | 15,018 | 14,400 | 14,130 | 13,884 | 14,462 | 14,313 | 13,365 | 14,389 | 13,902 | 14,017 | 13,385 | 12,003 | 13,480 | 13,230 | 14,725 | 14,952 | 14,337 | 14,065 | 13,964 | 13,337 | 13,305 | 13,179 | 13,744 | 13,337 | 13,292 | 12,870 | 12,673 | 12,123 | 12,225 | 12,100 | 11,805 | 11,938 | 11,847 | 11,855 | 11,576 | 11,418 | 11,200 | 10,322 | 10,759 | 10,708 | 10,623 | 10,096 | 10,100 | 9,892 | 9,748 | 8,998 | 8,936 | 9,710 | 10,122 | 9,927 | 9,402 | 9,842 | 10,461 | 10,481 | 10,554 | 10,333 | 10,517 | 10,379 | 9,795 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B247">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B251">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Russell 1000® Growth Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B255">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 47,152 | 46,740 | 43,893 | 44,038 | 42,825 | 41,951 | 42,677 | 39,981 | 37,723 | 39,394 | 38,713 | 36,240 | 35,358 | 33,859 | 30,531 | 30,972 | 32,753 | 33,050 | 31,972 | 29,926 | 28,621 | 28,342 | 26,528 | 26,847 | 24,782 | 26,836 | 25,667 | 24,249 | 26,861 | 28,173 | 25,154 | 27,318 | 27,968 | 31,809 | 30,612 | 31,970 | 34,971 | 34,247 | 34,039 | 31,326 | 33,184 | 31,988 | 30,968 | 29,140 | 29,548 | 27,666 | 27,199 | 27,205 | 27,408 | 26,203 | 23,769 | 24,604 | 25,819 | 23,404 | 21,732 | 20,825 | 19,515 | 17,000 | 18,854 | 20,232 | 19,790 | 19,210 | 18,394 | 17,890 | 17,888 | 18,026 | 17,628 | 16,495 | 17,607 | 16,846 | 16,380 | 15,814 | 14,510 | 15,875 | 15,708 | 17,251 | 17,155 | 16,265 | 15,801 | 15,651 | 14,994 | 14,941 | 15,363 | 15,776 | 14,733 | 14,619 | 14,188 | 13,659 | 13,483 | 13,241 | 12,898 | 12,932 | 12,604 | 12,322 | 12,182 | 11,696 | 11,314 | 11,176 | 10,938 | 11,201 | 11,160 | 11,216 | 10,711 | 10,753 | 10,548 | 10,645 | 9,973 | 9,977 | 10,567 | 10,724 | 10,694 | 9,846 | 10,096 | 10,749 | 10,396 | 10,583 | 10,436 | 10,384 | 10,503 | 9,847 |
| Russell 1000® Growth Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B259">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 47,152 | 46,740 | 43,893 | 44,038 | 42,825 | 41,951 | 42,677 | 39,981 | 37,723 | 39,394 | 38,713 | 36,240 | 35,358 | 33,859 | 30,531 | 30,972 | 32,753 | 33,050 | 31,972 | 29,926 | 28,621 | 28,342 | 26,528 | 26,847 | 24,782 | 26,836 | 25,667 | 24,249 | 26,861 | 28,173 | 25,154 | 27,318 | 27,968 | 31,809 | 30,612 | 31,970 | 34,971 | 34,247 | 34,039 | 31,326 | 33,184 | 31,988 | 30,968 | 29,140 | 29,548 | 27,666 | 27,199 | 27,205 | 27,408 | 26,203 | 23,769 | 24,604 | 25,819 | 23,404 | 21,732 | 20,825 | 19,515 | 17,000 | 18,854 | 20,232 | 19,790 | 19,210 | 18,394 | 17,890 | 17,888 | 18,026 | 17,628 | 16,495 | 17,607 | 16,846 | 16,380 | 15,814 | 14,510 | 15,875 | 15,708 | 17,251 | 17,155 | 16,265 | 15,801 | 15,651 | 14,994 | 14,941 | 15,363 | 15,776 | 14,733 | 14,619 | 14,188 | 13,659 | 13,483 | 13,241 | 12,898 | 12,932 | 12,604 | 12,322 | 12,182 | 11,696 | 11,314 | 11,176 | 10,938 | 11,201 | 11,160 | 11,216 | 10,711 | 10,753 | 10,548 | 10,645 | 9,973 | 9,977 | 10,567 | 10,724 | 10,694 | 9,846 | 10,096 | 10,749 | 10,396 | 10,583 | 10,436 | 10,384 | 10,503 | 9,847 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B263">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Russell 1000® Value Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B267">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,580 | 24,238 | 22,783 | 23,036 | 22,721 | 22,127 | 21,051 | 21,251 | 20,598 | 21,517 | 20,493 | 19,764 | 19,743 | 18,707 | 17,395 | 18,031 | 18,754 | 19,275 | 18,620 | 17,460 | 18,161 | 17,891 | 17,974 | 18,631 | 17,713 | 18,457 | 17,371 | 15,756 | 17,270 | 17,801 | 16,694 | 18,292 | 17,943 | 19,015 | 18,493 | 18,711 | 19,157 | 18,020 | 18,678 | 17,776 | 18,417 | 18,059 | 17,915 | 18,123 | 17,709 | 17,028 | 16,082 | 15,166 | 15,306 | 14,741 | 12,993 | 13,166 | 13,497 | 12,962 | 12,469 | 12,552 | 12,136 | 10,910 | 13,158 | 14,569 | 14,890 | 14,491 | 14,056 | 13,863 | 13,385 | 13,791 | 13,677 | 12,761 | 13,638 | 13,171 | 13,088 | 12,682 | 11,767 | 13,016 | 12,639 | 13,329 | 13,303 | 13,109 | 12,610 | 12,579 | 12,505 | 12,464 | 12,687 | 13,323 | 12,827 | 12,642 | 12,267 | 12,178 | 11,828 | 11,967 | 11,811 | 11,621 | 11,632 | 11,654 | 11,774 | 11,365 | 11,285 | 11,010 | 10,415 | 10,579 | 10,601 | 10,520 | 10,223 | 10,135 | 9,980 | 9,775 | 9,118 | 9,120 | 9,617 | 9,829 | 9,791 | 9,104 | 9,388 | 9,982 | 9,939 | 10,141 | 10,021 | 9,928 | 10,065 | 9,600 |
| Reference Benchmark | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Reference Benchmark | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,334 | 18,731 | 18,341 | 18,848 | 18,545 | 18,117 | 17,735 | 17,513 | 17,000 | 17,523 | 17,145 | 16,835 | 16,806 | 16,114 | 15,026 | 15,339 | 15,889 | 16,194 | 15,851 | 15,355 | 15,560 | 15,356 | 14,870 | 15,290 | 14,526 | 14,870 | 14,006 | 13,463 | 14,546 | 15,144 | 14,399 | 15,374 | 15,301 | 16,367 | 16,315 | 16,593 | 17,210 | 16,763 | 16,987 | 16,534 | 17,072 | 16,850 | 16,621 | 16,580 | 16,360 | 15,870 | 15,618 | 15,497 | 15,626 | 15,149 | 14,023 | 14,286 | 14,574 | 14,072 | 13,557 | 13,310 | 12,941 | 12,128 | 13,154 | 13,785 | 13,787 | 13,495 | 13,340 | 13,101 | 12,972 | 13,017 | 13,008 | 12,421 | 12,777 | 12,524 | 12,367 | 12,198 | 11,606 | 12,026 | 11,905 | 12,480 | 12,469 | 12,374 | 12,148 | 12,178 | 12,169 | 12,168 | 12,268 | 12,596 | 12,175 | 12,063 | 11,874 | 11,747 | 11,651 | 11,588 | 11,356 | 11,337 | 11,138 | 10,990 | 10,916 | 10,710 | 10,523 | 10,394 | 10,469 | 10,671 | 10,613 | 10,636 | 10,360 | 10,280 | 10,296 | 10,185 | 9,698 | 9,655 | 9,922 | 10,007 | 10,100 | 9,644 | 9,808 | 10,193 | 10,087 | 10,235 | 10,271 | 10,097 | 10,207 | 9,919 |
| Reference Benchmark | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Reference Benchmark | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,334 | 18,731 | 18,341 | 18,848 | 18,545 | 18,117 | 17,735 | 17,513 | 17,000 | 17,523 | 17,145 | 16,835 | 16,806 | 16,114 | 15,026 | 15,339 | 15,889 | 16,194 | 15,851 | 15,355 | 15,560 | 15,356 | 14,870 | 15,290 | 14,526 | 14,870 | 14,006 | 13,463 | 14,546 | 15,144 | 14,399 | 15,374 | 15,301 | 16,367 | 16,315 | 16,593 | 17,210 | 16,763 | 16,987 | 16,534 | 17,072 | 16,850 | 16,621 | 16,580 | 16,360 | 15,870 | 15,618 | 15,497 | 15,626 | 15,149 | 14,023 | 14,286 | 14,574 | 14,072 | 13,557 | 13,310 | 12,941 | 12,128 | 13,154 | 13,785 | 13,787 | 13,495 | 13,340 | 13,101 | 12,972 | 13,017 | 13,008 | 12,421 | 12,777 | 12,524 | 12,367 | 12,198 | 11,606 | 12,026 | 11,905 | 12,480 | 12,469 | 12,374 | 12,148 | 12,178 | 12,169 | 12,168 | 12,268 | 12,596 | 12,175 | 12,063 | 11,874 | 11,747 | 11,651 | 11,588 | 11,356 | 11,337 | 11,138 | 10,990 | 10,916 | 10,710 | 10,523 | 10,394 | 10,469 | 10,671 | 10,613 | 10,636 | 10,360 | 10,280 | 10,296 | 10,185 | 9,698 | 9,655 | 9,922 | 10,007 | 10,100 | 9,644 | 9,808 | 10,193 | 10,087 | 10,235 | 10,271 | 10,097 | 10,207 | 9,919 |
| Reference Benchmark | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Reference Benchmark | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,334 | 18,731 | 18,341 | 18,848 | 18,545 | 18,117 | 17,735 | 17,513 | 17,000 | 17,523 | 17,145 | 16,835 | 16,806 | 16,114 | 15,026 | 15,339 | 15,889 | 16,194 | 15,851 | 15,355 | 15,560 | 15,356 | 14,870 | 15,290 | 14,526 | 14,870 | 14,006 | 13,463 | 14,546 | 15,144 | 14,399 | 15,374 | 15,301 | 16,367 | 16,315 | 16,593 | 17,210 | 16,763 | 16,987 | 16,534 | 17,072 | 16,850 | 16,621 | 16,580 | 16,360 | 15,870 | 15,618 | 15,497 | 15,626 | 15,149 | 14,023 | 14,286 | 14,574 | 14,072 | 13,557 | 13,310 | 12,941 | 12,128 | 13,154 | 13,785 | 13,787 | 13,495 | 13,340 | 13,101 | 12,972 | 13,017 | 13,008 | 12,421 | 12,777 | 12,524 | 12,367 | 12,198 | 11,606 | 12,026 | 11,905 | 12,480 | 12,469 | 12,374 | 12,148 | 12,178 | 12,169 | 12,168 | 12,268 | 12,596 | 12,175 | 12,063 | 11,874 | 11,747 | 11,651 | 11,588 | 11,356 | 11,337 | 11,138 | 10,990 | 10,916 | 10,710 | 10,523 | 10,394 | 10,469 | 10,671 | 10,613 | 10,636 | 10,360 | 10,280 | 10,296 | 10,185 | 9,698 | 9,655 | 9,922 | 10,007 | 10,100 | 9,644 | 9,808 | 10,193 | 10,087 | 10,235 | 10,271 | 10,097 | 10,207 | 9,919 |
| Russell 1000® Growth Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B283">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 47,152 | 46,740 | 43,893 | 44,038 | 42,825 | 41,951 | 42,677 | 39,981 | 37,723 | 39,394 | 38,713 | 36,240 | 35,358 | 33,859 | 30,531 | 30,972 | 32,753 | 33,050 | 31,972 | 29,926 | 28,621 | 28,342 | 26,528 | 26,847 | 24,782 | 26,836 | 25,667 | 24,249 | 26,861 | 28,173 | 25,154 | 27,318 | 27,968 | 31,809 | 30,612 | 31,970 | 34,971 | 34,247 | 34,039 | 31,326 | 33,184 | 31,988 | 30,968 | 29,140 | 29,548 | 27,666 | 27,199 | 27,205 | 27,408 | 26,203 | 23,769 | 24,604 | 25,819 | 23,404 | 21,732 | 20,825 | 19,515 | 17,000 | 18,854 | 20,232 | 19,790 | 19,210 | 18,394 | 17,890 | 17,888 | 18,026 | 17,628 | 16,495 | 17,607 | 16,846 | 16,380 | 15,814 | 14,510 | 15,875 | 15,708 | 17,251 | 17,155 | 16,265 | 15,801 | 15,651 | 14,994 | 14,941 | 15,363 | 15,776 | 14,733 | 14,619 | 14,188 | 13,659 | 13,483 | 13,241 | 12,898 | 12,932 | 12,604 | 12,322 | 12,182 | 11,696 | 11,314 | 11,176 | 10,938 | 11,201 | 11,160 | 11,216 | 10,711 | 10,753 | 10,548 | 10,645 | 9,973 | 9,977 | 10,567 | 10,724 | 10,694 | 9,846 | 10,096 | 10,749 | 10,396 | 10,583 | 10,436 | 10,384 | 10,503 | 9,847 |
| Russell 1000® Growth Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B287">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 47,152 | 46,740 | 43,893 | 44,038 | 42,825 | 41,951 | 42,677 | 39,981 | 37,723 | 39,394 | 38,713 | 36,240 | 35,358 | 33,859 | 30,531 | 30,972 | 32,753 | 33,050 | 31,972 | 29,926 | 28,621 | 28,342 | 26,528 | 26,847 | 24,782 | 26,836 | 25,667 | 24,249 | 26,861 | 28,173 | 25,154 | 27,318 | 27,968 | 31,809 | 30,612 | 31,970 | 34,971 | 34,247 | 34,039 | 31,326 | 33,184 | 31,988 | 30,968 | 29,140 | 29,548 | 27,666 | 27,199 | 27,205 | 27,408 | 26,203 | 23,769 | 24,604 | 25,819 | 23,404 | 21,732 | 20,825 | 19,515 | 17,000 | 18,854 | 20,232 | 19,790 | 19,210 | 18,394 | 17,890 | 17,888 | 18,026 | 17,628 | 16,495 | 17,607 | 16,846 | 16,380 | 15,814 | 14,510 | 15,875 | 15,708 | 17,251 | 17,155 | 16,265 | 15,801 | 15,651 | 14,994 | 14,941 | 15,363 | 15,776 | 14,733 | 14,619 | 14,188 | 13,659 | 13,483 | 13,241 | 12,898 | 12,932 | 12,604 | 12,322 | 12,182 | 11,696 | 11,314 | 11,176 | 10,938 | 11,201 | 11,160 | 11,216 | 10,711 | 10,753 | 10,548 | 10,645 | 9,973 | 9,977 | 10,567 | 10,724 | 10,694 | 9,846 | 10,096 | 10,749 | 10,396 | 10,583 | 10,436 | 10,384 | 10,503 | 9,847 |
| ICE BofA 3-Month U.S. Treasury Bill Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,916 | 11,868 | 11,823 | 11,778 | 11,727 | 11,671 | 11,619 | 11,572 | 11,517 | 11,468 | 11,416 | 11,370 | 11,322 | 11,269 | 11,219 | 11,169 | 11,118 | 11,068 | 11,024 | 10,974 | 10,931 | 10,897 | 10,850 | 10,815 | 10,781 | 10,742 | 10,707 | 10,691 | 10,664 | 10,646 | 10,641 | 10,638 | 10,631 | 10,629 | 10,626 | 10,624 | 10,625 | 10,624 | 10,623 | 10,624 | 10,623 | 10,623 | 10,622 | 10,622 | 10,622 | 10,622 | 10,621 | 10,620 | 10,619 | 10,618 | 10,617 | 10,616 | 10,615 | 10,614 | 10,612 | 10,611 | 10,610 | 10,610 | 10,579 | 10,563 | 10,549 | 10,534 | 10,521 | 10,501 | 10,482 | 10,461 | 10,442 | 10,419 | 10,395 | 10,376 | 10,352 | 10,334 | 10,314 | 10,295 | 10,274 | 10,256 | 10,240 | 10,222 | 10,206 | 10,189 | 10,173 | 10,160 | 10,146 | 10,136 | 10,124 | 10,113 | 10,104 | 10,095 | 10,087 | 10,077 | 10,069 | 10,060 | 10,055 | 10,048 | 10,047 | 10,042 | 10,038 | 10,034 | 10,032 | 10,030 | 10,025 | 10,023 | 10,020 | 10,016 | 10,015 | 10,013 | 10,008 | 10,006 | 10,005 | 10,002 | 10,001 | 10,002 | 10,002 | 10,000 | 10,001 | 10,001 | 10,001 | 10,000 | 10,000 | 10,000 |
| FTSE WGBI (hedged into USD) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FTSE WGBI (hedged into USD) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,664 | 11,768 | 11,628 | 11,793 | 11,666 | 11,548 | 11,328 | 11,236 | 11,172 | 11,359 | 11,273 | 11,356 | 11,393 | 11,044 | 10,704 | 10,767 | 10,972 | 10,990 | 11,024 | 11,053 | 11,102 | 11,064 | 10,773 | 10,947 | 10,706 | 10,933 | 10,704 | 10,742 | 11,089 | 11,432 | 11,170 | 11,304 | 11,381 | 11,697 | 11,964 | 12,104 | 12,286 | 12,399 | 12,253 | 12,276 | 12,423 | 12,461 | 12,277 | 12,210 | 12,188 | 12,187 | 12,211 | 12,481 | 12,574 | 12,557 | 12,534 | 12,542 | 12,448 | 12,576 | 12,452 | 12,416 | 12,432 | 12,321 | 12,312 | 12,119 | 11,850 | 11,923 | 11,972 | 12,023 | 12,096 | 11,756 | 11,665 | 11,499 | 11,296 | 11,315 | 11,103 | 11,112 | 11,014 | 10,832 | 10,758 | 10,758 | 10,807 | 10,795 | 10,819 | 10,778 | 10,755 | 10,798 | 10,667 | 10,662 | 10,735 | 10,731 | 10,704 | 10,656 | 10,724 | 10,616 | 10,594 | 10,634 | 10,579 | 10,510 | 10,522 | 10,430 | 10,510 | 10,488 | 10,666 | 10,807 | 10,813 | 10,848 | 10,810 | 10,561 | 10,498 | 10,517 | 10,462 | 10,335 | 10,130 | 10,154 | 10,149 | 10,122 | 10,041 | 10,058 | 9,932 | 10,062 | 10,126 | 10,204 | 10,127 | 10,203 |
| 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 17,240 | 17,525 | 17,102 | 17,419 | 17,127 | 16,828 | 16,534 | 16,286 | 15,917 | 16,320 | 16,008 | 15,728 | 15,708 | 15,106 | 14,224 | 14,484 | 14,932 | 15,156 | 14,907 | 14,504 | 14,615 | 14,486 | 14,079 | 14,399 | 13,752 | 14,178 | 13,509 | 13,136 | 14,028 | 14,512 | 13,866 | 14,566 | 14,606 | 15,433 | 15,438 | 15,732 | 16,251 | 16,004 | 16,102 | 15,716 | 16,145 | 15,969 | 15,797 | 15,651 | 15,516 | 15,183 | 14,997 | 14,986 | 15,076 | 14,725 | 13,857 | 14,032 | 14,208 | 13,855 | 13,433 | 13,202 | 12,930 | 12,220 | 13,099 | 13,538 | 13,460 | 13,267 | 13,133 | 12,984 | 12,887 | 12,853 | 12,785 | 12,294 | 12,553 | 12,355 | 12,162 | 12,007 | 11,501 | 11,818 | 11,693 | 12,148 | 12,149 | 12,094 | 11,928 | 11,937 | 11,918 | 11,884 | 11,939 | 12,192 | 11,897 | 11,799 | 11,672 | 11,526 | 11,452 | 11,372 | 11,204 | 11,200 | 11,049 | 10,928 | 10,868 | 10,671 | 10,567 | 10,443 | 10,491 | 10,650 | 10,621 | 10,620 | 10,378 | 10,288 | 10,251 | 10,185 | 9,796 | 9,770 | 9,969 | 10,072 | 10,112 | 9,717 | 9,856 | 10,215 | 10,107 | 10,294 | 10,334 | 10,224 | 10,265 | 10,024 |
| ICE BofA 3-Month U.S. Treasury Bill Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,916 | 11,868 | 11,823 | 11,778 | 11,727 | 11,671 | 11,619 | 11,572 | 11,517 | 11,468 | 11,416 | 11,370 | 11,322 | 11,269 | 11,219 | 11,169 | 11,118 | 11,068 | 11,024 | 10,974 | 10,931 | 10,897 | 10,850 | 10,815 | 10,781 | 10,742 | 10,707 | 10,691 | 10,664 | 10,646 | 10,641 | 10,638 | 10,631 | 10,629 | 10,626 | 10,624 | 10,625 | 10,624 | 10,623 | 10,624 | 10,623 | 10,623 | 10,622 | 10,622 | 10,622 | 10,622 | 10,621 | 10,620 | 10,619 | 10,618 | 10,617 | 10,616 | 10,615 | 10,614 | 10,612 | 10,611 | 10,610 | 10,610 | 10,579 | 10,563 | 10,549 | 10,534 | 10,521 | 10,501 | 10,482 | 10,461 | 10,442 | 10,419 | 10,395 | 10,376 | 10,352 | 10,334 | 10,314 | 10,295 | 10,274 | 10,256 | 10,240 | 10,222 | 10,206 | 10,189 | 10,173 | 10,160 | 10,146 | 10,136 | 10,124 | 10,113 | 10,104 | 10,095 | 10,087 | 10,077 | 10,069 | 10,060 | 10,055 | 10,048 | 10,047 | 10,042 | 10,038 | 10,034 | 10,032 | 10,030 | 10,025 | 10,023 | 10,020 | 10,016 | 10,015 | 10,013 | 10,008 | 10,006 | 10,005 | 10,002 | 10,001 | 10,002 | 10,002 | 10,000 | 10,001 | 10,001 | 10,001 | 10,000 | 10,000 | 10,000 |
| FTSE WGBI (hedged into USD) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FTSE WGBI (hedged into USD) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,664 | 11,768 | 11,628 | 11,793 | 11,666 | 11,548 | 11,328 | 11,236 | 11,172 | 11,359 | 11,273 | 11,356 | 11,393 | 11,044 | 10,704 | 10,767 | 10,972 | 10,990 | 11,024 | 11,053 | 11,102 | 11,064 | 10,773 | 10,947 | 10,706 | 10,933 | 10,704 | 10,742 | 11,089 | 11,432 | 11,170 | 11,304 | 11,381 | 11,697 | 11,964 | 12,104 | 12,286 | 12,399 | 12,253 | 12,276 | 12,423 | 12,461 | 12,277 | 12,210 | 12,188 | 12,187 | 12,211 | 12,481 | 12,574 | 12,557 | 12,534 | 12,542 | 12,448 | 12,576 | 12,452 | 12,416 | 12,432 | 12,321 | 12,312 | 12,119 | 11,850 | 11,923 | 11,972 | 12,023 | 12,096 | 11,756 | 11,665 | 11,499 | 11,296 | 11,315 | 11,103 | 11,112 | 11,014 | 10,832 | 10,758 | 10,758 | 10,807 | 10,795 | 10,819 | 10,778 | 10,755 | 10,798 | 10,667 | 10,662 | 10,735 | 10,731 | 10,704 | 10,656 | 10,724 | 10,616 | 10,594 | 10,634 | 10,579 | 10,510 | 10,522 | 10,430 | 10,510 | 10,488 | 10,666 | 10,807 | 10,813 | 10,848 | 10,810 | 10,561 | 10,498 | 10,517 | 10,462 | 10,335 | 10,130 | 10,154 | 10,149 | 10,122 | 10,041 | 10,058 | 9,932 | 10,062 | 10,126 | 10,204 | 10,127 | 10,203 |
| 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 17,240 | 17,525 | 17,102 | 17,419 | 17,127 | 16,828 | 16,534 | 16,286 | 15,917 | 16,320 | 16,008 | 15,728 | 15,708 | 15,106 | 14,224 | 14,484 | 14,932 | 15,156 | 14,907 | 14,504 | 14,615 | 14,486 | 14,079 | 14,399 | 13,752 | 14,178 | 13,509 | 13,136 | 14,028 | 14,512 | 13,866 | 14,566 | 14,606 | 15,433 | 15,438 | 15,732 | 16,251 | 16,004 | 16,102 | 15,716 | 16,145 | 15,969 | 15,797 | 15,651 | 15,516 | 15,183 | 14,997 | 14,986 | 15,076 | 14,725 | 13,857 | 14,032 | 14,208 | 13,855 | 13,433 | 13,202 | 12,930 | 12,220 | 13,099 | 13,538 | 13,460 | 13,267 | 13,133 | 12,984 | 12,887 | 12,853 | 12,785 | 12,294 | 12,553 | 12,355 | 12,162 | 12,007 | 11,501 | 11,818 | 11,693 | 12,148 | 12,149 | 12,094 | 11,928 | 11,937 | 11,918 | 11,884 | 11,939 | 12,192 | 11,897 | 11,799 | 11,672 | 11,526 | 11,452 | 11,372 | 11,204 | 11,200 | 11,049 | 10,928 | 10,868 | 10,671 | 10,567 | 10,443 | 10,491 | 10,650 | 10,621 | 10,620 | 10,378 | 10,288 | 10,251 | 10,185 | 9,796 | 9,770 | 9,969 | 10,072 | 10,112 | 9,717 | 9,856 | 10,215 | 10,107 | 10,294 | 10,334 | 10,224 | 10,265 | 10,024 |
| Russell 2000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B315">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 21,223 | 23,134 | 20,847 | 21,152 | 21,006 | 21,324 | 19,357 | 19,538 | 18,605 | 20,013 | 19,322 | 18,288 | 19,028 | 16,956 | 15,549 | 16,687 | 17,731 | 18,664 | 17,589 | 16,266 | 16,418 | 16,718 | 17,557 | 17,859 | 16,273 | 17,402 | 17,005 | 15,319 | 16,942 | 17,296 | 15,661 | 17,065 | 17,039 | 18,914 | 18,681 | 18,484 | 20,453 | 20,006 | 20,876 | 20,024 | 20,632 | 20,181 | 20,937 | 20,539 | 20,497 | 20,075 | 19,876 | 18,709 | 17,813 | 16,395 | 13,843 | 13,559 | 14,028 | 13,280 | 12,922 | 12,481 | 11,718 | 10,303 | 13,163 | 14,373 | 14,849 | 14,433 | 13,862 | 13,507 | 13,231 | 13,918 | 13,839 | 12,925 | 14,015 | 13,555 | 13,845 | 13,160 | 11,830 | 13,424 | 13,214 | 14,824 | 15,190 | 14,562 | 14,312 | 14,211 | 13,397 | 13,283 | 13,113 | 13,641 | 13,294 | 13,348 | 12,974 | 12,864 | 12,108 | 12,264 | 12,174 | 11,767 | 12,012 | 11,881 | 11,866 | 11,641 | 11,595 | 11,279 | 10,148 | 10,654 | 10,537 | 10,354 | 9,770 | 9,777 | 9,561 | 9,413 | 8,718 | 8,718 | 9,559 | 10,064 | 9,747 | 9,227 | 9,703 | 10,354 | 10,475 | 10,398 | 10,165 | 10,432 | 10,253 | 9,678 |
| Russell 2000® Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B319">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 21,223 | $ 23,134 | $ 20,847 | $ 21,152 | $ 21,006 | $ 21,324 | $ 19,357 | $ 19,538 | $ 18,605 | $ 20,013 | $ 19,322 | $ 18,288 | $ 19,028 | $ 16,956 | $ 15,549 | $ 16,687 | $ 17,731 | $ 18,664 | $ 17,589 | $ 16,266 | $ 16,418 | $ 16,718 | $ 17,557 | $ 17,859 | $ 16,273 | $ 17,402 | $ 17,005 | $ 15,319 | $ 16,942 | $ 17,296 | $ 15,661 | $ 17,065 | $ 17,039 | $ 18,914 | $ 18,681 | $ 18,484 | $ 20,453 | $ 20,006 | $ 20,876 | $ 20,024 | $ 20,632 | $ 20,181 | $ 20,937 | $ 20,539 | $ 20,497 | $ 20,075 | $ 19,876 | $ 18,709 | $ 17,813 | $ 16,395 | $ 13,843 | $ 13,559 | $ 14,028 | $ 13,280 | $ 12,922 | $ 12,481 | $ 11,718 | $ 10,303 | $ 13,163 | $ 14,373 | $ 14,849 | $ 14,433 | $ 13,862 | $ 13,507 | $ 13,231 | $ 13,918 | $ 13,839 | $ 12,925 | $ 14,015 | $ 13,555 | $ 13,845 | $ 13,160 | $ 11,830 | $ 13,424 | $ 13,214 | $ 14,824 | $ 15,190 | $ 14,562 | $ 14,312 | $ 14,211 | $ 13,397 | $ 13,283 | $ 13,113 | $ 13,641 | $ 13,294 | $ 13,348 | $ 12,974 | $ 12,864 | $ 12,108 | $ 12,264 | $ 12,174 | $ 11,767 | $ 12,012 | $ 11,881 | $ 11,866 | $ 11,641 | $ 11,595 | $ 11,279 | $ 10,148 | $ 10,654 | $ 10,537 | $ 10,354 | $ 9,770 | $ 9,777 | $ 9,561 | $ 9,413 | $ 8,718 | $ 8,718 | $ 9,559 | $ 10,064 | $ 9,747 | $ 9,227 | $ 9,703 | $ 10,354 | $ 10,475 | $ 10,398 | $ 10,165 | $ 10,432 | $ 10,253 | $ 9,678 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2024 | |
| Without Sales Load [Member] | C000141138 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.64% | 7.14% | 6.74% |
| Without Sales Load [Member] | C000141139 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.36% | 6.86% | 6.48% |
| Without Sales Load [Member] | C000007905 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 25.44% | 14.10% | 12.38% |
| Without Sales Load [Member] | C000007906 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 25.28% | 13.91% | 12.19% |
| Without Sales Load [Member] | C000007907 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 25.11% | 13.81% | 12.07% |
| Without Sales Load [Member] | C000007911 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 16.32% | 9.76% | 9.11% |
| Without Sales Load [Member] | C000007913 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 16.13% | 9.50% | 8.80% |
| Without Sales Load [Member] | C000007914 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 12.05% | 8.69% | 9.20% |
| Without Sales Load [Member] | C000007916 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.70% | 8.41% | 8.94% |
| Without Sales Load [Member] | C000007923 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 10.37% | 9.02% | 7.78% |
| Without Sales Load [Member] | C000007925 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 10.05% | 8.72% | 7.48% |
| Without Sales Load [Member] | C000007932 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 32.28% | 16.14% | 15.08% |
| Without Sales Load [Member] | C000007934 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 31.93% | 15.84% | 14.77% |
| Without Sales Load [Member] | C000007917 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 10.06% | 8.27% | 9.07% |
| Without Sales Load [Member] | C000007919 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 9.71% | 7.98% | 8.79% |
| Without Sales Load [Member] | C000007938 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 9.23% | 6.01% | 5.59% |
| Without Sales Load [Member] | C000007939 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 9.09% | 5.84% | 5.43% |
| Without Sales Load [Member] | C000007940 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 9.01% | 5.74% | 5.33% |
| Without Sales Load [Member] | C000195945 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 3.43% | 4.70% | 5.14% |
| Without Sales Load [Member] | C000225417 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 3.20% | 4.43% | 4.87% |
| Without Sales Load [Member] | C000007920 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 0.37% | 3.49% | 4.61% |
| Without Sales Load [Member] | C000007908 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 31.71% | 16.16% | 15.30% |
| Without Sales Load [Member] | C000007910 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 31.39% | 15.88% | 15.01% |
| Without Sales Load [Member] | C000007899 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.99% | 5.06% | 3.43% |
| Without Sales Load [Member] | C000007901 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.75% | 4.80% | 3.17% |
| Without Sales Load [Member] | C000007902 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 24.83% | 14.38% | 12.89% |
| Without Sales Load [Member] | C000007903 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 24.68% | 14.21% | 12.72% |
| Without Sales Load [Member] | C000007904 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 24.52% | 14.10% | 12.61% |
| Without Sales Load [Member] | C000195946 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.31% | 7.24% | 7.61% |
| Without Sales Load [Member] | C000225418 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 11.07% | 6.99% | 7.34% |
| MSCI All Country World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||
| Average Annual Return, Percent | 17.49% | 10.06% | 9.23% |
| MSCI All Country World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||
| Average Annual Return, Percent | 17.49% | 10.06% | 9.23% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B103">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B107">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B111">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B115">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B119">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 3000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B123">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 23.81% | 13.86% | 12.55% |
| Russell 3000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B127">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 23.81% | 13.86% | 12.55% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B131">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B135">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B139">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B143">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B147">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B151">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| FTSE World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | FTSE World Index | ||
| Average Annual Return, Percent | 17.96% | 11.19% | 10.17% |
| FTSE World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | FTSE World Index | ||
| Average Annual Return, Percent | 17.96% | 11.19% | 10.17% |
| FTSE World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | FTSE World Index | ||
| Average Annual Return, Percent | 17.96% | 11.19% | 10.17% |
| MSCI EAFE Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI EAFE Index | ||
| Average Annual Return, Percent | 3.82% | 4.73% | 5.20% |
| MSCI EAFE Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI EAFE Index | ||
| Average Annual Return, Percent | 3.82% | 4.73% | 5.20% |
| MSCI ACWI ex USA Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI ACWI ex USA Index | ||
| Average Annual Return, Percent | 5.53% | 4.10% | 4.80% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B179">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| Russell 1000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B183">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 24.51% | 14.28% | 12.87% |
| MSCI All Country World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||
| Average Annual Return, Percent | 17.49% | 10.06% | 9.23% |
| MSCI All Country World Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI All Country World Index | ||
| Average Annual Return, Percent | 17.49% | 10.06% | 9.23% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B195">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B199">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| S&P 500® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B203">S&P 500<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 25.02% | 14.53% | 13.10% |
| Russell 3000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B207">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 23.81% | 13.86% | 12.55% |
| Russell 3000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B211">Russell 3000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 23.81% | 13.86% | 12.55% |
| 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.77% | 6.06% | 6.25% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 1.25% | (0.33%) | 1.35% |
| 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | 60% MSCI All Country World Index/40% Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.77% | 6.06% | 6.25% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 1.25% | (0.33%) | 1.35% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B231">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B235">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Russell 2500™ Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 2500™ Index | ||
| Average Annual Return, Percent | 12% | 8.77% | 8.85% |
| Russell 2500™ Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 2500™ Index | ||
| Average Annual Return, Percent | 12% | 8.77% | 8.85% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B247">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B251">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Russell 1000® Growth Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B255">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | ||
| Average Annual Return, Percent | 33.36% | 18.96% | 16.78% |
| Russell 1000® Growth Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B259">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | ||
| Average Annual Return, Percent | 33.36% | 18.96% | 16.78% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B263">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Russell 1000® Value Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Value Index" id="sjs-B267">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Value Index | ||
| Average Annual Return, Percent | 14.37% | 8.68% | 8.49% |
| Reference Benchmark | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Reference Benchmark | ||
| Average Annual Return, Percent | 9.09% | 5.87% | 6.25% |
| Reference Benchmark | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Reference Benchmark | ||
| Average Annual Return, Percent | 9.09% | 5.87% | 6.25% |
| Reference Benchmark | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Reference Benchmark | ||
| Average Annual Return, Percent | 9.09% | 5.87% | 6.25% |
| Russell 1000® Growth Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B283">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | ||
| Average Annual Return, Percent | 33.36% | 18.96% | 16.78% |
| Russell 1000® Growth Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Growth Index" id="sjs-B287">Russell 1000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Growth Index | ||
| Average Annual Return, Percent | 33.36% | 18.96% | 16.78% |
| ICE BofA 3-Month U.S. Treasury Bill Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||
| Average Annual Return, Percent | 5.25% | 2.47% | 1.77% |
| FTSE WGBI (hedged into USD) | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | FTSE WGBI (hedged into USD) | ||
| Average Annual Return, Percent | 2.38% | (0.32%) | 1.55% |
| 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | ||
| Average Annual Return, Percent | 9.76% | 5.07% | 5.60% |
| ICE BofA 3-Month U.S. Treasury Bill Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ICE BofA 3-Month U.S. Treasury Bill Index | ||
| Average Annual Return, Percent | 5.25% | 2.47% | 1.77% |
| FTSE WGBI (hedged into USD) | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | FTSE WGBI (hedged into USD) | ||
| Average Annual Return, Percent | 2.38% | (0.32%) | 1.55% |
| 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | 50% MSCI ACWI Index/50% FTSE WGBI (hedged into USD) | ||
| Average Annual Return, Percent | 9.76% | 5.07% | 5.60% |
| Russell 2000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B315">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 11.54% | 7.40% | 7.82% |
| Russell 2000® Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Index" id="sjs-B319">Russell 2000<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Index | ||
| Average Annual Return, Percent | 11.54% | 7.40% | 7.82% |
| Shareholder Report, Holdings (Details) | Dec. 31, 2024 |
| C000141138 | Equity Funds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 44.60% |
| C000141138 | Fixed-Income Funds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.40% |
| C000141138 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 30% |
| C000141139 | Equity Funds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 44.60% |
| C000141139 | Fixed-Income Funds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.40% |
| C000141139 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 30% |
| C000007905 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000007905 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.90% |
| C000007905 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000007905 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| C000007905 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000007905 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000007905 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000007905 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000007905 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000007905 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007905 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000007905 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007905 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000007906 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000007906 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.90% |
| C000007906 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000007906 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| C000007906 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000007906 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000007906 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000007906 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000007906 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000007906 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007906 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000007906 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007906 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000007907 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.00%) |
| C000007907 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.90% |
| C000007907 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000007907 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| C000007907 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| C000007907 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000007907 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000007907 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000007907 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000007907 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007907 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000007907 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007907 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000007911 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.90%) |
| C000007911 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| C000007911 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.30% |
| C000007911 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000007911 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.50% |
| C000007911 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000007911 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000007911 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007911 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007911 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000007911 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000007911 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000007911 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007913 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (2.90%) |
| C000007913 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| C000007913 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.30% |
| C000007913 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000007913 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.50% |
| C000007913 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000007913 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000007913 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007913 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007913 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000007913 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000007913 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000007913 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007914 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (8.90%) |
| C000007914 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000007914 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.60% |
| C000007914 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000007914 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000007914 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.70% |
| C000007914 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000007914 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007914 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000007914 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000007914 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007914 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007914 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000007916 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (8.90%) |
| C000007916 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000007916 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.60% |
| C000007916 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000007916 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000007916 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.70% |
| C000007916 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000007916 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007916 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000007916 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000007916 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007916 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007916 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000007923 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (9.40%) |
| C000007923 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000007923 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22% |
| C000007923 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.60% |
| C000007923 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000007923 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000007923 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000007923 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000007923 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000007923 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007923 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007923 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000007925 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (9.40%) |
| C000007925 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000007925 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22% |
| C000007925 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.60% |
| C000007925 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000007925 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000007925 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000007925 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000007925 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000007925 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000007925 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000007925 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000007932 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.40%) |
| C000007932 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000007932 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000007932 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.90% |
| C000007932 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| C000007932 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000007932 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.30% |
| C000007932 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000007932 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000007932 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000007934 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.40%) |
| C000007934 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000007934 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000007934 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.90% |
| C000007934 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| C000007934 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000007934 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.30% |
| C000007934 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000007934 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000007934 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000007917 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.80%) |
| C000007917 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000007917 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.70% |
| C000007917 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000007917 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000007917 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.70% |
| C000007917 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000007917 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000007917 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000007917 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000007917 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007917 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000007917 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000007919 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (3.80%) |
| C000007919 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000007919 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.70% |
| C000007919 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000007919 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000007919 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.70% |
| C000007919 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000007919 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000007919 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000007919 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000007919 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007919 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000007919 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000007938 | Other_2 | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 11.70% |
| Percent of Net Short Exposure | 0% |
| C000007938 | United States | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 65.70% |
| Percent of Net Short Exposure | 0% |
| C000007938 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 5.20% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.40% |
| Percent of Net Short Exposure | 0% |
| C000007938 | France | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.10% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2.60% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Italy | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007938 | China | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.60% |
| Percent of Net Short Exposure | 0% |
| C000007938 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.30% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Other_2 | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 11.70% |
| Percent of Net Short Exposure | 0% |
| C000007939 | United States | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 65.70% |
| Percent of Net Short Exposure | 0% |
| C000007939 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 5.20% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.40% |
| Percent of Net Short Exposure | 0% |
| C000007939 | France | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.10% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2.60% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Italy | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007939 | China | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.60% |
| Percent of Net Short Exposure | 0% |
| C000007939 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.30% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Other_2 | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 11.70% |
| Percent of Net Short Exposure | 0% |
| C000007940 | United States | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 65.70% |
| Percent of Net Short Exposure | 0% |
| C000007940 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 5.20% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.40% |
| Percent of Net Short Exposure | 0% |
| C000007940 | France | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 3.10% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2.60% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Italy | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 2% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.70% |
| Percent of Net Short Exposure | 0% |
| C000007940 | China | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.60% |
| Percent of Net Short Exposure | 0% |
| C000007940 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 1.30% |
| Percent of Net Short Exposure | 0% |
| C000007929 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.80% |
| C000007929 | Repurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.90% |
| C000007929 | U.S. Government Sponsored Agency Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.10% |
| C000007929 | Other Money Market Types | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000195945 | Other Assets Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000195945 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000195945 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000195945 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| C000195945 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.80% |
| C000195945 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000195945 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000195945 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000195945 | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000195945 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000195945 | Sweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000195945 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000195945 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000225417 | Other Assets Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000225417 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000225417 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000225417 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| C000225417 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.80% |
| C000225417 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000225417 | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000225417 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000225417 | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000225417 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000225417 | Sweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000225417 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000225417 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000007920 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.60%) |
| C000007920 | Other Regions_ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000007920 | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.40% |
| C000007920 | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000007920 | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.70% |
| C000007920 | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007920 | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000007920 | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000007920 | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000007920 | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000007920 | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000007920 | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000007920 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000007908 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.10%) |
| C000007908 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.20% |
| C000007908 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000007908 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000007908 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000007908 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007908 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.40% |
| C000007908 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000007908 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000007908 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000007910 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (0.10%) |
| C000007910 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.20% |
| C000007910 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000007910 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000007910 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000007910 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007910 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.40% |
| C000007910 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000007910 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000007910 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000007899 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000007899 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.90% |
| C000007899 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| C000007899 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000007899 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000007899 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000007899 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000007899 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000007899 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007899 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007899 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007899 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007899 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000007901 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000007901 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.90% |
| C000007901 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| C000007901 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000007901 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000007901 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000007901 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000007901 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000007901 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007901 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000007901 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007901 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000007901 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.40% |
| C000007902 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (7.40%) |
| C000007902 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000007902 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000007902 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000007902 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007902 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000007902 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000007902 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000007902 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000007902 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000007902 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000007902 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000007902 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000007903 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (7.40%) |
| C000007903 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000007903 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000007903 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000007903 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007903 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000007903 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000007903 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000007903 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000007903 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000007903 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000007903 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000007903 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000007904 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (7.40%) |
| C000007904 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000007904 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000007904 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000007904 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000007904 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000007904 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000007904 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000007904 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000007904 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000007904 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000007904 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000007904 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000195946 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (16.40%) |
| C000195946 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| C000195946 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.50% |
| C000195946 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| C000195946 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000195946 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.20% |
| C000195946 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000195946 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000195946 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000195946 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000195946 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000195946 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000195946 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17% |
| C000225418 | Liabilities in Excess of Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (16.40%) |
| C000225418 | Information Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| C000225418 | Financials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.50% |
| C000225418 | Consumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| C000225418 | Industrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000225418 | Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.20% |
| C000225418 | Communication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000225418 | Consumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000225418 | Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000225418 | Energy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000225418 | Real Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000225418 | Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000225418 | Short-Term Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17% |
