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Shareholder Report
 6 Months Ended
Jun. 30, 2024
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name JOHN HANCOCK VARIABLE INSURANCE TRUST
Entity Central Index Key 0000756913
Document Period End Date Jun. 30, 2024
C000117965 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Bond Market Trust
Class Name Series I
Trading Symbol JTBMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Bond Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Bond Market Trust
(Series I/JTBMX)		 $15 0.30%
Expenses Paid, Amount $ 15
Expense Ratio, Percent 0.30%
Net Assets $ 952,506,005
Holdings Count | Holding 936
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $952,506,005%
Total number of portfolio holdings $936%
Portfolio turnover rate $9%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 43.9%
U.S. Government Agency 26.9%
Corporate bonds 25.0%
Collateralized mortgage obligations – Commercial and residential 1.5%
Foreign government obligations 0.8%
Asset backed securities 0.5%
Municipal bonds 0.3%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000117966 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Bond Market Trust
Class Name Series II
Trading Symbol JAGVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Bond Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Bond Market Trust
(Series II/JAGVX)		 $25 0.50%
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.50%
Net Assets $ 952,506,005
Holdings Count | Holding 936
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $952,506,005%
Total number of portfolio holdings $936%
Portfolio turnover rate $9%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 43.9%
U.S. Government Agency 26.9%
Corporate bonds 25.0%
Collateralized mortgage obligations – Commercial and residential 1.5%
Foreign government obligations 0.8%
Asset backed securities 0.5%
Municipal bonds 0.3%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022342 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Bond Market Trust
Class Name Series NAV
Trading Symbol JAGUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Bond Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Bond Market Trust
(Series NAV/JAGUX)		 $12 0.25%
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.25%
Net Assets $ 952,506,005
Holdings Count | Holding 936
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $952,506,005%
Total number of portfolio holdings $936%
Portfolio turnover rate $9%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 43.9%
U.S. Government Agency 26.9%
Corporate bonds 25.0%
Collateralized mortgage obligations – Commercial and residential 1.5%
Foreign government obligations 0.8%
Asset backed securities 0.5%
Municipal bonds 0.3%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022355 [Member]  
Shareholder Report [Line Items]  
Fund Name Blue Chip Growth Trust
Class Name Series I
Trading Symbol JADZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Blue Chip Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Blue Chip Growth Trust
(Series I/JADZX)		 $44 0.79%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.79%
Net Assets $ 2,040,896,956
Holdings Count | Holding 80
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,040,896,956%
Total number of portfolio holdings $80%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
Sector Composition
Information technology 43.9%
Communication services 15.8%
Consumer discretionary 14.1%
Health care 10.4%
Financials 8.1%
Industrials 1.6%
Consumer staples 1.4%
Materials 0.8%
Utilities 0.7%
Energy 0.3%
Short-term investments and other 2.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
C000022356 [Member]  
Shareholder Report [Line Items]  
Fund Name Blue Chip Growth Trust
Class Name Series II
Trading Symbol JADYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Blue Chip Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Blue Chip Growth Trust
(Series II/JADYX)		 $55 0.99%
Expenses Paid, Amount $ 55
Expense Ratio, Percent 0.99%
Net Assets $ 2,040,896,956
Holdings Count | Holding 80
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,040,896,956%
Total number of portfolio holdings $80%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
Sector Composition
Information technology 43.9%
Communication services 15.8%
Consumer discretionary 14.1%
Health care 10.4%
Financials 8.1%
Industrials 1.6%
Consumer staples 1.4%
Materials 0.8%
Utilities 0.7%
Energy 0.3%
Short-term investments and other 2.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
C000022354 [Member]  
Shareholder Report [Line Items]  
Fund Name Blue Chip Growth Trust
Class Name Series NAV
Trading Symbol JAEDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Blue Chip Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Blue Chip Growth Trust
(Series NAV/JAEDX)		 $41 0.74%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.74%
Net Assets $ 2,040,896,956
Holdings Count | Holding 80
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,040,896,956%
Total number of portfolio holdings $80%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
Sector Composition
Information technology 43.9%
Communication services 15.8%
Consumer discretionary 14.1%
Health care 10.4%
Financials 8.1%
Industrials 1.6%
Consumer staples 1.4%
Materials 0.8%
Utilities 0.7%
Energy 0.3%
Short-term investments and other 2.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 12.8%
NVIDIA Corp. 12.3%
Amazon.com, Inc. 8.3%
Apple, Inc. 8.1%
Alphabet, Inc., Class C 6.7%
Meta Platforms, Inc., Class A 4.8%
Eli Lilly & Company 3.7%
Visa, Inc., Class A 2.6%
Mastercard, Inc., Class A 2.2%
ServiceNow, Inc. 2.0%
C000022399 [Member]  
Shareholder Report [Line Items]  
Fund Name Equity Income Trust
Class Name Series I
Trading Symbol JAEGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Equity Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Equity Income Trust
(Series I/JAEGX)		 $38 0.74%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.74%
Net Assets $ 1,394,917,949
Holdings Count | Holding 119
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,394,917,949%
Total number of portfolio holdings $119%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
Sector Composition
Financials 21.5%
Health care 16.5%
Industrials 12.5%
Information technology 10.2%
Energy 9.0%
Consumer staples 8.6%
Utilities 6.0%
Communication services 4.5%
Real estate 4.1%
Consumer discretionary 3.1%
Materials 2.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
C000022400 [Member]  
Shareholder Report [Line Items]  
Fund Name Equity Income Trust
Class Name Series II
Trading Symbol JAEFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Equity Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Equity Income Trust
(Series II/JAEFX)		 $49 0.94%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.94%
Net Assets $ 1,394,917,949
Holdings Count | Holding 119
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,394,917,949%
Total number of portfolio holdings $119%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
Sector Composition
Financials 21.5%
Health care 16.5%
Industrials 12.5%
Information technology 10.2%
Energy 9.0%
Consumer staples 8.6%
Utilities 6.0%
Communication services 4.5%
Real estate 4.1%
Consumer discretionary 3.1%
Materials 2.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
C000022398 [Member]  
Shareholder Report [Line Items]  
Fund Name Equity Income Trust
Class Name Series NAV
Trading Symbol JAEEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Equity Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Equity Income Trust
(Series NAV/JAEEX)		 $36 0.69%
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.69%
Net Assets $ 1,394,917,949
Holdings Count | Holding 119
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,394,917,949%
Total number of portfolio holdings $119%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
Sector Composition
Financials 21.5%
Health care 16.5%
Industrials 12.5%
Information technology 10.2%
Energy 9.0%
Consumer staples 8.6%
Utilities 6.0%
Communication services 4.5%
Real estate 4.1%
Consumer discretionary 3.1%
Materials 2.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 2.7%
Qualcomm, Inc. 2.4%
Wells Fargo & Company 2.3%
The Southern Company 2.2%
News Corp., Class A 2.2%
Chubb, Ltd. 2.0%
American International Group, Inc. 1.9%
TotalEnergies SE 1.9%
MetLife, Inc. 1.8%
General Electric Company 1.8%
C000022375 [Member]  
Shareholder Report [Line Items]  
Fund Name Core Bond Trust
Class Name Series I
Trading Symbol JADKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Core Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Core Bond Trust
(Series I/JADKX)		 $33 0.67%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.67%
Net Assets $ 789,479,462
Holdings Count | Holding 1,028
Investment Company Portfolio Turnover 128.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $789,479,462%
Total number of portfolio holdings $1,028%
Portfolio turnover rate $128%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.2%
Corporate bonds 24.7%
U.S. Government 21.2%
Collateralized mortgage obligations – U.S. Government Agency 14.5%
Asset backed securities 8.1%
Collateralized mortgage obligations – Commercial and residential 2.0%
Foreign government obligations 0.9%
Municipal bonds 0.3%
Short-term investments 2.1%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022376 [Member]  
Shareholder Report [Line Items]  
Fund Name Core Bond Trust
Class Name Series II
Trading Symbol JAAEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Core Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Core Bond Trust
(Series II/JAAEX)		 $43 0.87%
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.87%
Net Assets $ 789,479,462
Holdings Count | Holding 1,028
Investment Company Portfolio Turnover 128.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $789,479,462%
Total number of portfolio holdings $1,028%
Portfolio turnover rate $128%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.2%
Corporate bonds 24.7%
U.S. Government 21.2%
Collateralized mortgage obligations – U.S. Government Agency 14.5%
Asset backed securities 8.1%
Collateralized mortgage obligations – Commercial and residential 2.0%
Foreign government obligations 0.9%
Municipal bonds 0.3%
Short-term investments 2.1%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022374 [Member]  
Shareholder Report [Line Items]  
Fund Name Core Bond Trust
Class Name Series NAV
Trading Symbol JVCNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Core Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Core Bond Trust
(Series NAV/JVCNX)		 $31 0.62%
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.62%
Net Assets $ 789,479,462
Holdings Count | Holding 1,028
Investment Company Portfolio Turnover 128.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $789,479,462%
Total number of portfolio holdings $1,028%
Portfolio turnover rate $128%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.2%
Corporate bonds 24.7%
U.S. Government 21.2%
Collateralized mortgage obligations – U.S. Government Agency 14.5%
Asset backed securities 8.1%
Collateralized mortgage obligations – Commercial and residential 2.0%
Foreign government obligations 0.9%
Municipal bonds 0.3%
Short-term investments 2.1%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022604 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Conservative Portfolio
Class Name Series I
Trading Symbol JELCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Conservative Portfolio
(Series I/JELCX)		 $9 0.19%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.19%
Net Assets $ 535,879,111
Holdings Count | Holding 23
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $535,879,111%
Total number of portfolio holdings $23%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 98.4%
Equity 19.2%
Large blend 9.1%
U.S. large cap 6.3%
U.S. mid cap 1.4%
Emerging-market equity 1.3%
U.S. small cap 1.1%
Fixed income 79.2%
Intermediate bond 79.2%
Unaffiliated investment companies 0.9%
Equity 0.9%
Short-term investments and other 0.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022605 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Conservative Portfolio
Class Name Series II
Trading Symbol JAISX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Conservative Portfolio
(Series II/JAISX)		 $19 0.39%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.39%
Net Assets $ 535,879,111
Holdings Count | Holding 23
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $535,879,111%
Total number of portfolio holdings $23%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 98.4%
Equity 19.2%
Large blend 9.1%
U.S. large cap 6.3%
U.S. mid cap 1.4%
Emerging-market equity 1.3%
U.S. small cap 1.1%
Fixed income 79.2%
Intermediate bond 79.2%
Unaffiliated investment companies 0.9%
Equity 0.9%
Short-term investments and other 0.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022603 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Conservative Portfolio
Class Name Series NAV
Trading Symbol JAIUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Conservative Portfolio
(Series NAV/JAIUX)		 $7 0.14%
Expenses Paid, Amount $ 7
Expense Ratio, Percent 0.14%
Net Assets $ 535,879,111
Holdings Count | Holding 23
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $535,879,111%
Total number of portfolio holdings $23%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 98.4%
Equity 19.2%
Large blend 9.1%
U.S. large cap 6.3%
U.S. mid cap 1.4%
Emerging-market equity 1.3%
U.S. small cap 1.1%
Fixed income 79.2%
Intermediate bond 79.2%
Unaffiliated investment companies 0.9%
Equity 0.9%
Short-term investments and other 0.7%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022637 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Value Trust
Class Name Series I
Trading Symbol JEMUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Value Trust
(Series I/JEMUX)		 $48 0.92%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.92%
Net Assets $ 624,621,408
Holdings Count | Holding 113
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $624,621,408%
Total number of portfolio holdings $113%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
Sector Composition
Industrials 18.6%
Financials 15.4%
Information technology 13.8%
Consumer discretionary 10.2%
Health care 8.6%
Energy 6.3%
Real estate 5.9%
Materials 5.8%
Utilities 5.4%
Consumer staples 4.6%
Communication services 1.9%
Short-term investments and other 3.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
C000022638 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Value Trust
Class Name Series II
Trading Symbol JAGYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Value Trust
(Series II/JAGYX)		 $58 1.12%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.12%
Net Assets $ 624,621,408
Holdings Count | Holding 113
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $624,621,408%
Total number of portfolio holdings $113%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
Sector Composition
Industrials 18.6%
Financials 15.4%
Information technology 13.8%
Consumer discretionary 10.2%
Health care 8.6%
Energy 6.3%
Real estate 5.9%
Materials 5.8%
Utilities 5.4%
Consumer staples 4.6%
Communication services 1.9%
Short-term investments and other 3.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
C000022636 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Value Trust
Class Name Series NAV
Trading Symbol JAGWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Value Trust
(Series NAV/JAGWX)		 $45 0.87%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.87%
Net Assets $ 624,621,408
Holdings Count | Holding 113
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $624,621,408%
Total number of portfolio holdings $113%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
Sector Composition
Industrials 18.6%
Financials 15.4%
Information technology 13.8%
Consumer discretionary 10.2%
Health care 8.6%
Energy 6.3%
Real estate 5.9%
Materials 5.8%
Utilities 5.4%
Consumer staples 4.6%
Communication services 1.9%
Short-term investments and other 3.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Corning, Inc. 2.7%
Western Digital Corp. 2.4%
MKS Instruments, Inc. 2.4%
Select Medical Holdings Corp. 2.3%
Stanley Black & Decker, Inc. 1.7%
Fifth Third Bancorp 1.7%
News Corp., Class A 1.6%
TE Connectivity, Ltd. 1.5%
FirstEnergy Corp. 1.4%
Saia, Inc. 1.3%
C000022568 [Member]  
Shareholder Report [Line Items]  
Fund Name Investment Quality Bond Trust
Class Name Series I
Trading Symbol JADUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Investment Quality Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Investment Quality Bond Trust
(Series I/JADUX)		 $37 0.75%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.75%
Net Assets $ 217,019,823
Holdings Count | Holding 877
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $217,019,823%
Total number of portfolio holdings $877%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.6%
U.S. Government 24.7%
Corporate bonds 23.8%
Asset backed securities 8.0%
Collateralized mortgage obligations – Commercial and residential 7.4%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Foreign government obligations 2.5%
Municipal bonds 1.2%
Short-term investments 2.7%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022569 [Member]  
Shareholder Report [Line Items]  
Fund Name Investment Quality Bond Trust
Class Name Series II
Trading Symbol JADSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Investment Quality Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Investment Quality Bond Trust
(Series II/JADSX)		 $47 0.95%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.95%
Net Assets $ 217,019,823
Holdings Count | Holding 877
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $217,019,823%
Total number of portfolio holdings $877%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.6%
U.S. Government 24.7%
Corporate bonds 23.8%
Asset backed securities 8.0%
Collateralized mortgage obligations – Commercial and residential 7.4%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Foreign government obligations 2.5%
Municipal bonds 1.2%
Short-term investments 2.7%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022567 [Member]  
Shareholder Report [Line Items]  
Fund Name Investment Quality Bond Trust
Class Name Series NAV
Trading Symbol JAJNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Investment Quality Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Investment Quality Bond Trust
(Series NAV/JAJNX)		 $35 0.70%
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.70%
Net Assets $ 217,019,823
Holdings Count | Holding 877
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $217,019,823%
Total number of portfolio holdings $877%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 26.6%
U.S. Government 24.7%
Corporate bonds 23.8%
Asset backed securities 8.0%
Collateralized mortgage obligations – Commercial and residential 7.4%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Foreign government obligations 2.5%
Municipal bonds 1.2%
Short-term investments 2.7%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022599 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Moderate Portfolio
Class Name Series I
Trading Symbol JELMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Moderate Portfolio
(Series I/JELMX)		 $9 0.17%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17%
Net Assets $ 1,102,168,748
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,102,168,748%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.1%
Equity 38.1%
Large blend 18.1%
U.S. large cap 11.5%
Emerging-market equity 2.9%
U.S. mid cap 2.8%
U.S. small cap 1.9%
International equity 0.9%
Fixed income 59.0%
Intermediate bond 59.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022600 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Moderate Portfolio
Class Name Series II
Trading Symbol JAIWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Moderate Portfolio
(Series II/JAIWX)		 $19 0.37%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37%
Net Assets $ 1,102,168,748
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,102,168,748%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.1%
Equity 38.1%
Large blend 18.1%
U.S. large cap 11.5%
Emerging-market equity 2.9%
U.S. mid cap 2.8%
U.S. small cap 1.9%
International equity 0.9%
Fixed income 59.0%
Intermediate bond 59.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022598 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Moderate Portfolio
Class Name Series NAV
Trading Symbol JAIVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Moderate Portfolio
(Series NAV/JAIVX)		 $6 0.12%
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12%
Net Assets $ 1,102,168,748
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,102,168,748%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.1%
Equity 38.1%
Large blend 18.1%
U.S. large cap 11.5%
Emerging-market equity 2.9%
U.S. mid cap 2.8%
U.S. small cap 1.9%
International equity 0.9%
Fixed income 59.0%
Intermediate bond 59.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022347 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth Trust
Class Name Series I
Trading Symbol JAHJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth Trust
(Series I/JAHJX)		 $33 0.62%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.62%
Net Assets $ 971,518,819
Holdings Count | Holding 1
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $971,518,819%
Total number of portfolio holdings $1%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 24.2%
Communication services 19.8%
Health care 15.0%
Consumer discretionary 12.2%
Industrials 10.9%
Financials 7.0%
Energy 3.8%
Consumer staples 2.6%
Materials 1.5%
Utilities 0.8%
Real estate 0.2%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022348 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth Trust
Class Name Series II
Trading Symbol JAHKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth Trust
(Series II/JAHKX)		 $36 0.68%
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.68%
Net Assets $ 971,518,819
Holdings Count | Holding 1
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $971,518,819%
Total number of portfolio holdings $1%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 24.2%
Communication services 19.8%
Health care 15.0%
Consumer discretionary 12.2%
Industrials 10.9%
Financials 7.0%
Energy 3.8%
Consumer staples 2.6%
Materials 1.5%
Utilities 0.8%
Real estate 0.2%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022349 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth Trust
Class Name Series III
Trading Symbol JAHGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029 800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth Trust
(Series III/JAHGX)		 $15 0.27%
Expenses Paid, Amount $ 15
Expense Ratio, Percent 0.27%
Net Assets $ 971,518,819
Holdings Count | Holding 1
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $971,518,819%
Total number of portfolio holdings $1%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 24.2%
Communication services 19.8%
Health care 15.0%
Consumer discretionary 12.2%
Industrials 10.9%
Financials 7.0%
Energy 3.8%
Consumer staples 2.6%
Materials 1.5%
Utilities 0.8%
Real estate 0.2%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000117967 [Member]  
Shareholder Report [Line Items]  
Fund Name 500 Index Trust
Class Name Series I
Trading Symbol JFIVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the 500 Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
500 Index Trust
(Series I/JFIVX)		 $16 0.30%
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30%
Net Assets $ 9,907,607,701
Holdings Count | Holding 505
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $9,907,607,701%
Total number of portfolio holdings $505%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
Sector Composition
Information technology 31.5%
Financials 12.1%
Health care 11.4%
Consumer discretionary 9.7%
Communication services 9.1%
Industrials 7.9%
Consumer staples 5.6%
Energy 3.5%
Utilities 2.2%
Materials 2.1%
Real estate 2.1%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
C000117968 [Member]  
Shareholder Report [Line Items]  
Fund Name 500 Index Trust
Class Name Series II
Trading Symbol JAGKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the 500 Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029 800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
500 Index Trust
(Series II/JAGKX)		 $27 0.50%
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.50%
Net Assets $ 9,907,607,701
Holdings Count | Holding 505
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $9,907,607,701%
Total number of portfolio holdings $505%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
Sector Composition
Information technology 31.5%
Financials 12.1%
Health care 11.4%
Consumer discretionary 9.7%
Communication services 9.1%
Industrials 7.9%
Consumer staples 5.6%
Energy 3.5%
Utilities 2.2%
Materials 2.1%
Real estate 2.1%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
C000022362 [Member]  
Shareholder Report [Line Items]  
Fund Name 500 Index Trust
Class Name Series NAV
Trading Symbol JAGMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the 500 Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
500 Index Trust
(Series NAV/JAGMX)		 $13 0.25%
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25%
Net Assets $ 9,907,607,701
Holdings Count | Holding 505
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $9,907,607,701%
Total number of portfolio holdings $505%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
Sector Composition
Information technology 31.5%
Financials 12.1%
Health care 11.4%
Consumer discretionary 9.7%
Communication services 9.1%
Industrials 7.9%
Consumer staples 5.6%
Energy 3.5%
Utilities 2.2%
Materials 2.1%
Real estate 2.1%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 7.0%
NVIDIA Corp. 6.4%
Apple, Inc. 6.4%
Amazon.com, Inc. 3.8%
Meta Platforms, Inc., Class A 2.4%
Alphabet, Inc., Class A 2.3%
Alphabet, Inc., Class C 1.9%
Berkshire Hathaway, Inc., Class B 1.6%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.5%
C000022689 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value International Trust
Class Name Series I
Trading Symbol JAJHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value International Trust
(Series I/JAJHX)		 $43 0.83%
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.83%
Net Assets $ 285,645,764
Holdings Count | Holding 89
Investment Company Portfolio Turnover 35.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $285,645,764%
Total number of portfolio holdings $89%
Portfolio turnover rate $35%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
Sector Composition
Financials 19.2%
Industrials 16.3%
Materials 14.0%
Energy 9.1%
Health care 9.0%
Consumer discretionary 8.9%
Information technology 8.8%
Consumer staples 5.5%
Utilities 5.1%
Communication services 1.7%
Short-term investments and other 2.4%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
C000022690 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value International Trust
Class Name Series II
Trading Symbol JAJIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value International Trust
(Series II/JAJIX)		 $53 1.03%
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.03%
Net Assets $ 285,645,764
Holdings Count | Holding 89
Investment Company Portfolio Turnover 35.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $285,645,764%
Total number of portfolio holdings $89%
Portfolio turnover rate $35%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
Sector Composition
Financials 19.2%
Industrials 16.3%
Materials 14.0%
Energy 9.1%
Health care 9.0%
Consumer discretionary 8.9%
Information technology 8.8%
Consumer staples 5.5%
Utilities 5.1%
Communication services 1.7%
Short-term investments and other 2.4%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
C000022688 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value International Trust
Class Name Series NAV
Trading Symbol JAJJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value International Trust
(Series NAV/JAJJX)		 $40 0.78%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.78%
Net Assets $ 285,645,764
Holdings Count | Holding 89
Investment Company Portfolio Turnover 35.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $285,645,764%
Total number of portfolio holdings $89%
Portfolio turnover rate $35%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
Sector Composition
Financials 19.2%
Industrials 16.3%
Materials 14.0%
Energy 9.1%
Health care 9.0%
Consumer discretionary 8.9%
Information technology 8.8%
Consumer staples 5.5%
Utilities 5.1%
Communication services 1.7%
Short-term investments and other 2.4%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Samsung Electronics Company, Ltd. 3.7%
Novartis AG 3.4%
Kinross Gold Corp. 2.8%
Cenovus Energy, Inc. 2.5%
Beazley PLC 2.3%
Asahi Group Holdings, Ltd. 2.3%
Siemens AG 2.3%
CRH PLC (London Stock Exchange) 2.3%
SSE PLC 2.1%
Sandoz Group AG 1.9%
C000022431 [Member]  
Shareholder Report [Line Items]  
Fund Name Active Bond Trust
Class Name Series I
Trading Symbol JAHFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Active Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Active Bond Trust
(Series I/JAHFX)		 $35 0.70%
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.70%
Net Assets $ 547,959,098
Holdings Count | Holding 956
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $547,959,098%
Total number of portfolio holdings $956%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 36.3%
U.S. Government Agency 34.8%
U.S. Government 18.8%
Asset backed securities 5.3%
Collateralized mortgage obligations – Commercial and residential 2.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.1%
Capital preferred securities 0.1%
Short-term investments and other 1.2%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022432 [Member]  
Shareholder Report [Line Items]  
Fund Name Active Bond Trust
Class Name Series II
Trading Symbol JAHEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Active Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Active Bond Trust
(Series II/JAHEX)		 $45 0.90%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.90%
Net Assets $ 547,959,098
Holdings Count | Holding 956
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $547,959,098%
Total number of portfolio holdings $956%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 36.3%
U.S. Government Agency 34.8%
U.S. Government 18.8%
Asset backed securities 5.3%
Collateralized mortgage obligations – Commercial and residential 2.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.1%
Capital preferred securities 0.1%
Short-term investments and other 1.2%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022430 [Member]  
Shareholder Report [Line Items]  
Fund Name Active Bond Trust
Class Name Series NAV
Trading Symbol JAHDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Active Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Active Bond Trust
(Series NAV/JAHDX)		 $32 0.65%
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.65%
Net Assets $ 547,959,098
Holdings Count | Holding 956
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $547,959,098%
Total number of portfolio holdings $956%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 36.3%
U.S. Government Agency 34.8%
U.S. Government 18.8%
Asset backed securities 5.3%
Collateralized mortgage obligations – Commercial and residential 2.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.1%
Capital preferred securities 0.1%
Short-term investments and other 1.2%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022475 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth-Income Trust
Class Name Series I
Trading Symbol JAHQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth-Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth-Income Trust
(Series I/JAHQX)		 $33 0.62%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.62%
Net Assets $ 949,341,415
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $949,341,415%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 26.1%
Industrials 14.1%
Health care 13.5%
Communication services 10.5%
Consumer discretionary 9.7%
Financials 9.7%
Consumer staples 3.5%
Energy 3.0%
Materials 3.0%
Utilities 2.3%
Real estate 1.8%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022476 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth-Income Trust
Class Name Series II
Trading Symbol JAHRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth-Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth-Income Trust
(Series II/JAHRX)		 $37 0.70%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.70%
Net Assets $ 949,341,415
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $949,341,415%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 26.1%
Industrials 14.1%
Health care 13.5%
Communication services 10.5%
Consumer discretionary 9.7%
Financials 9.7%
Consumer staples 3.5%
Energy 3.0%
Materials 3.0%
Utilities 2.3%
Real estate 1.8%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022477 [Member]  
Shareholder Report [Line Items]  
Fund Name American Growth-Income Trust
Class Name Series III
Trading Symbol JAHUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Growth-Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Growth-Income Trust
(Series III/JAHUX)		 $14 0.27%
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.27%
Net Assets $ 949,341,415
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $949,341,415%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 26.1%
Industrials 14.1%
Health care 13.5%
Communication services 10.5%
Consumer discretionary 9.7%
Financials 9.7%
Consumer staples 3.5%
Energy 3.0%
Materials 3.0%
Utilities 2.3%
Real estate 1.8%
Short-term investments and other 2.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022351 [Member]  
Shareholder Report [Line Items]  
Fund Name American International Trust
Class Name Series I
Trading Symbol JAHLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American International Trust
(Series I/JAHLX)		 $32 0.63%
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.63%
Net Assets $ 366,943,871
Holdings Count | Holding 1
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $366,943,871%
Total number of portfolio holdings $1%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Industrials 17.5%
Information technology 14.1%
Health care 12.9%
Materials 12.1%
Consumer discretionary 11.4%
Financials 10.8%
Energy 6.9%
Communication services 5.1%
Consumer staples 4.2%
Utilities 1.1%
Real estate 0.7%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022352 [Member]  
Shareholder Report [Line Items]  
Fund Name American International Trust
Class Name Series II
Trading Symbol JAHMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American International Trust
(Series II/JAHMX)		 $39 0.76%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.76%
Net Assets $ 366,943,871
Holdings Count | Holding 1
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $366,943,871%
Total number of portfolio holdings $1%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Industrials 17.5%
Information technology 14.1%
Health care 12.9%
Materials 12.1%
Consumer discretionary 11.4%
Financials 10.8%
Energy 6.9%
Communication services 5.1%
Consumer staples 4.2%
Utilities 1.1%
Real estate 0.7%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022353 [Member]  
Shareholder Report [Line Items]  
Fund Name American International Trust
Class Name Series III
Trading Symbol JAHPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American International Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American International Trust
(Series III/JAHPX)		 $14 0.28%
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.28%
Net Assets $ 366,943,871
Holdings Count | Holding 1
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $366,943,871%
Total number of portfolio holdings $1%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Industrials 17.5%
Information technology 14.1%
Health care 12.9%
Materials 12.1%
Consumer discretionary 11.4%
Financials 10.8%
Energy 6.9%
Communication services 5.1%
Consumer staples 4.2%
Utilities 1.1%
Real estate 0.7%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022367 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Trust
Class Name Series I
Trading Symbol JAFHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Trust
(Series I/JAFHX)		 $44 0.80%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.80%
Net Assets $ 673,762,648
Holdings Count | Holding 53
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $673,762,648%
Total number of portfolio holdings $53%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
Sector Composition
Information technology 41.5%
Consumer discretionary 17.9%
Communication services 14.6%
Health care 10.7%
Financials 7.7%
Industrials 3.9%
Consumer staples 2.7%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
C000022368 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Trust
Class Name Series II
Trading Symbol JAFJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Trust
(Series II/JAFJX)		 $55 1.00%
Expenses Paid, Amount $ 55
Expense Ratio, Percent 1.00%
Net Assets $ 673,762,648
Holdings Count | Holding 53
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $673,762,648%
Total number of portfolio holdings $53%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
Sector Composition
Information technology 41.5%
Consumer discretionary 17.9%
Communication services 14.6%
Health care 10.7%
Financials 7.7%
Industrials 3.9%
Consumer staples 2.7%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
C000022366 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Trust
Class Name Series NAV
Trading Symbol JAFGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Trust
(Series NAV/JAFGX)		 $41 0.75%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.75%
Net Assets $ 673,762,648
Holdings Count | Holding 53
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $673,762,648%
Total number of portfolio holdings $53%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
Sector Composition
Information technology 41.5%
Consumer discretionary 17.9%
Communication services 14.6%
Health care 10.7%
Financials 7.7%
Industrials 3.9%
Consumer staples 2.7%
Short-term investments and other 1.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
NVIDIA Corp. 9.9%
Amazon.com, Inc. 8.0%
Microsoft Corp. 8.0%
Apple, Inc. 5.2%
Meta Platforms, Inc., Class A 4.9%
Broadcom, Inc. 4.6%
Eli Lilly & Company 4.3%
Netflix, Inc. 3.2%
Visa, Inc., Class A 2.4%
Novo Nordisk A/S, ADR 2.4%
C000022403 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Trust
Class Name Series I
Trading Symbol JEFSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Financial Industries Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Trust
(Series I/JEFSX)		 $48 0.93%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.93%
Net Assets $ 116,313,349
Holdings Count | Holding 54
Investment Company Portfolio Turnover 33.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $116,313,349%
Total number of portfolio holdings $54%
Portfolio turnover rate $33%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
Industry Composition 
Banks 36.4%
Capital markets 27.0%
Insurance 17.9%
Financial services 9.2%
Consumer finance 6.0%
Specialized REITs 1.4%
Mortgage real estate investment trusts 0.6%
Industrial REITs 0.1%
Short-term investments and other 1.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
C000022404 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Trust
Class Name Series II
Trading Symbol JEFCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Financial Industries Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Trust
(Series II/JEFCX)		 $59 1.13%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.13%
Net Assets $ 116,313,349
Holdings Count | Holding 54
Investment Company Portfolio Turnover 33.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $116,313,349%
Total number of portfolio holdings $54%
Portfolio turnover rate $33%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
Industry Composition 
Banks 36.4%
Capital markets 27.0%
Insurance 17.9%
Financial services 9.2%
Consumer finance 6.0%
Specialized REITs 1.4%
Mortgage real estate investment trusts 0.6%
Industrial REITs 0.1%
Short-term investments and other 1.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
C000022402 [Member]  
Shareholder Report [Line Items]  
Fund Name Financial Industries Trust
Class Name Series NAV
Trading Symbol JAFNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Financial Industries Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Financial Industries Trust
(Series NAV/JAFNX)		 $46 0.88%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.88%
Net Assets $ 116,313,349
Holdings Count | Holding 54
Investment Company Portfolio Turnover 33.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $116,313,349%
Total number of portfolio holdings $54%
Portfolio turnover rate $33%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
Industry Composition 
Banks 36.4%
Capital markets 27.0%
Insurance 17.9%
Financial services 9.2%
Consumer finance 6.0%
Specialized REITs 1.4%
Mortgage real estate investment trusts 0.6%
Industrial REITs 0.1%
Short-term investments and other 1.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Citigroup, Inc. 4.1%
KKR & Company, Inc. 3.9%
Sumitomo Mitsui Financial Group, Inc. 3.4%
Reinsurance Group of America, Inc. 3.3%
Discover Financial Services 3.1%
Visa, Inc., Class A 3.0%
JPMorgan Chase & Co. 3.0%
The Goldman Sachs Group, Inc. 3.0%
The Progressive Corp. 2.9%
Nasdaq, Inc. 2.9%
C000117969 [Member]  
Shareholder Report [Line Items]  
Fund Name International Equity Index Trust
Class Name Series I
Trading Symbol JIEQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Equity Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Equity Index Trust
(Series I/JIEQX)		 $20 0.39%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39%
Net Assets $ 933,150,693
Holdings Count | Holding 2,114
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $933,150,693%
Total number of portfolio holdings $2,114%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
Sector Composition
Financials 20.8%
Information technology 13.7%
Industrials 13.5%
Consumer discretionary 10.9%
Health care 9.3%
Consumer staples 7.1%
Materials 6.9%
Energy 5.4%
Communication services 5.1%
Utilities 3.0%
Real estate 1.7%
Short-term investments and other 2.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
C000117970 [Member]  
Shareholder Report [Line Items]  
Fund Name International Equity Index Trust
Class Name Series II
Trading Symbol JAJEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Equity Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Equity Index Trust
(Series II/JAJEX)		 $30 0.59%
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59%
Net Assets $ 933,150,693
Holdings Count | Holding 2,114
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $933,150,693%
Total number of portfolio holdings $2,114%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
Sector Composition
Financials 20.8%
Information technology 13.7%
Industrials 13.5%
Consumer discretionary 10.9%
Health care 9.3%
Consumer staples 7.1%
Materials 6.9%
Energy 5.4%
Communication services 5.1%
Utilities 3.0%
Real estate 1.7%
Short-term investments and other 2.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
C000022668 [Member]  
Shareholder Report [Line Items]  
Fund Name International Equity Index Trust
Class Name Series NAV
Trading Symbol JVANX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Equity Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Equity Index Trust
(Series NAV/JVANX)		 $17 0.34%
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34%
Net Assets $ 933,150,693
Holdings Count | Holding 2,114
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $933,150,693%
Total number of portfolio holdings $2,114%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
Sector Composition
Financials 20.8%
Information technology 13.7%
Industrials 13.5%
Consumer discretionary 10.9%
Health care 9.3%
Consumer staples 7.1%
Materials 6.9%
Energy 5.4%
Communication services 5.1%
Utilities 3.0%
Real estate 1.7%
Short-term investments and other 2.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Taiwan Semiconductor Manufacturing Company, Ltd. 2.8%
Novo Nordisk A/S, Class B 1.8%
ASML Holding NV 1.5%
Tencent Holdings, Ltd. 1.2%
Samsung Electronics Company, Ltd. 1.1%
Nestle SA 1.0%
AstraZeneca PLC 0.9%
Shell PLC 0.9%
Toyota Motor Corp. 0.8%
LVMH Moet Hennessy Louis Vuitton SE 0.8%
C000022704 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Index Trust
Class Name Series I
Trading Symbol JESIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Index Trust
(Series I/JESIX)		 $27 0.53%
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.53%
Net Assets $ 505,838,385
Holdings Count | Holding 1,823
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $505,838,385%
Total number of portfolio holdings $1,823%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
Sector Composition
Health care 16.7%
Industrials 16.7%
Financials 16.6%
Information technology 12.9%
Consumer discretionary 9.6%
Energy 6.4%
Real estate 5.8%
Materials 4.4%
Consumer staples 2.7%
Utilities 2.6%
Communication services 2.4%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
C000022705 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Index Trust
Class Name Series II
Trading Symbol JAJOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Index Trust
(Series II/JAJOX)		 $37 0.73%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.73%
Net Assets $ 505,838,385
Holdings Count | Holding 1,823
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $505,838,385%
Total number of portfolio holdings $1,823%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
Sector Composition
Health care 16.7%
Industrials 16.7%
Financials 16.6%
Information technology 12.9%
Consumer discretionary 9.6%
Energy 6.4%
Real estate 5.8%
Materials 4.4%
Consumer staples 2.7%
Utilities 2.6%
Communication services 2.4%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
C000022703 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Index Trust
Class Name Series NAV
Trading Symbol JAEWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Index Trust
(Series NAV/JAEWX)		 $24 0.48%
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.48%
Net Assets $ 505,838,385
Holdings Count | Holding 1,823
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $505,838,385%
Total number of portfolio holdings $1,823%
Portfolio turnover rate $11%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
Sector Composition
Health care 16.7%
Industrials 16.7%
Financials 16.6%
Information technology 12.9%
Consumer discretionary 9.6%
Energy 6.4%
Real estate 5.8%
Materials 4.4%
Consumer staples 2.7%
Utilities 2.6%
Communication services 2.4%
Short-term investments and other 3.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Insmed, Inc. 0.4%
FTAI Aviation, Ltd. 0.4%
Abercrombie & Fitch Company, Class A 0.4%
Fabrinet 0.4%
Sprouts Farmers Market, Inc. 0.3%
Vaxcyte, Inc. 0.3%
Fluor Corp. 0.3%
Applied Industrial Technologies, Inc. 0.3%
HealthEquity, Inc. 0.3%
SPS Commerce, Inc. 0.3%
C000022712 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Value Trust
Class Name Series I
Trading Symbol JESVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Value Trust
(Series I/JESVX)		 $52 1.04%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.04%
Net Assets $ 445,341,561
Holdings Count | Holding 81
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $445,341,561%
Total number of portfolio holdings $81%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
Sector Composition
Financials 25.9%
Industrials 15.9%
Real estate 10.6%
Consumer discretionary 10.5%
Information technology 8.3%
Materials 7.7%
Energy 6.9%
Health care 5.3%
Utilities 3.2%
Consumer staples 2.6%
Communication services 1.1%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
C000022713 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Value Trust
Class Name Series II
Trading Symbol JAGZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Value Trust
(Series II/JAGZX)		 $62 1.24%
Expenses Paid, Amount $ 62
Expense Ratio, Percent 1.24%
Net Assets $ 445,341,561
Holdings Count | Holding 81
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $445,341,561%
Total number of portfolio holdings $81%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
Sector Composition
Financials 25.9%
Industrials 15.9%
Real estate 10.6%
Consumer discretionary 10.5%
Information technology 8.3%
Materials 7.7%
Energy 6.9%
Health care 5.3%
Utilities 3.2%
Consumer staples 2.6%
Communication services 1.1%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
C000022711 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Value Trust
Class Name Series NAV
Trading Symbol JAHBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Value Trust
(Series NAV/JAHBX)		 $49 0.99%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.99%
Net Assets $ 445,341,561
Holdings Count | Holding 81
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $445,341,561%
Total number of portfolio holdings $81%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
Sector Composition
Financials 25.9%
Industrials 15.9%
Real estate 10.6%
Consumer discretionary 10.5%
Information technology 8.3%
Materials 7.7%
Energy 6.9%
Health care 5.3%
Utilities 3.2%
Consumer staples 2.6%
Communication services 1.1%
Short-term investments and other 2.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Gulfport Energy Corp. 2.1%
TriMas Corp. 2.0%
Chord Energy Corp. 1.9%
National Bank Holdings Corp., Class A 1.8%
ACI Worldwide, Inc. 1.8%
Element Solutions, Inc. 1.8%
Sitio Royalties Corp., Class A 1.8%
Hancock Whitney Corp. 1.7%
Bread Financial Holdings, Inc. 1.7%
Belden, Inc. 1.7%
C000022411 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Equity Trust
Class Name Series I
Trading Symbol JEFGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Global Equity Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Global Equity Trust
(Series I/JEFGX)		 $48 0.93%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.93%
Net Assets $ 302,950,356
Holdings Count | Holding 58
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $302,950,356%
Total number of portfolio holdings $58%
Portfolio turnover rate $19%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
Sector Composition
Information technology 19.0%
Financials 15.9%
Industrials 14.8%
Health care 10.2%
Consumer discretionary 9.4%
Consumer staples 8.6%
Communication services 7.8%
Energy 5.1%
Materials 4.5%
Utilities 1.9%
Real estate 1.2%
Short-term investments and other 1.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
C000022412 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Equity Trust
Class Name Series II
Trading Symbol JAJFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Global Equity Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Global Equity Trust
(Series II/JAJFX)		 $59 1.13%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.13%
Net Assets $ 302,950,356
Holdings Count | Holding 58
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $302,950,356%
Total number of portfolio holdings $58%
Portfolio turnover rate $19%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
Sector Composition
Information technology 19.0%
Financials 15.9%
Industrials 14.8%
Health care 10.2%
Consumer discretionary 9.4%
Consumer staples 8.6%
Communication services 7.8%
Energy 5.1%
Materials 4.5%
Utilities 1.9%
Real estate 1.2%
Short-term investments and other 1.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
C000022410 [Member]  
Shareholder Report [Line Items]  
Fund Name Global Equity Trust
Class Name Series NAV
Trading Symbol JAJGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Global Equity Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Global Equity Trust
(Series NAV/JAJGX)		 $46 0.88%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.88%
Net Assets $ 302,950,356
Holdings Count | Holding 58
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $302,950,356%
Total number of portfolio holdings $58%
Portfolio turnover rate $19%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
Sector Composition
Information technology 19.0%
Financials 15.9%
Industrials 14.8%
Health care 10.2%
Consumer discretionary 9.4%
Consumer staples 8.6%
Communication services 7.8%
Energy 5.1%
Materials 4.5%
Utilities 1.9%
Real estate 1.2%
Short-term investments and other 1.6%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 4.9%
Sumitomo Mitsui Financial Group, Inc. 4.3%
Samsung Electronics Company, Ltd. 3.4%
Apple, Inc. 3.3%
Alphabet, Inc., Class A 3.2%
Philip Morris International, Inc. 3.0%
Elevance Health, Inc. 3.0%
ConocoPhillips 2.7%
ING Groep NV 2.5%
Sanofi SA 2.4%
C000022443 [Member]  
Shareholder Report [Line Items]  
Fund Name Health Sciences Trust
Class Name Series I
Trading Symbol JEHSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Health Sciences Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Health Sciences Trust
(Series I/JEHSX)		 $50 0.97%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.97%
Net Assets $ 261,538,330
Holdings Count | Holding 177
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $261,538,330%
Total number of portfolio holdings $177%
Portfolio turnover rate $26%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
Industry Composition 
Biotechnology 32.4%
Pharmaceuticals 22.5%
Health care providers and services 17.3%
Health care equipment and supplies 16.1%
Life sciences tools and services 11.0%
Insurance 0.3%
Short-term investments and other 0.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
C000022444 [Member]  
Shareholder Report [Line Items]  
Fund Name Health Sciences Trust
Class Name Series II
Trading Symbol JAFKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Health Sciences Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Health Sciences Trust
(Series II/JAFKX)		 $60 1.17%
Expenses Paid, Amount $ 60
Expense Ratio, Percent 1.17%
Net Assets $ 261,538,330
Holdings Count | Holding 177
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $261,538,330%
Total number of portfolio holdings $177%
Portfolio turnover rate $26%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
Industry Composition 
Biotechnology 32.4%
Pharmaceuticals 22.5%
Health care providers and services 17.3%
Health care equipment and supplies 16.1%
Life sciences tools and services 11.0%
Insurance 0.3%
Short-term investments and other 0.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
C000022442 [Member]  
Shareholder Report [Line Items]  
Fund Name Health Sciences Trust
Class Name Series NAV
Trading Symbol JAFMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Health Sciences Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Health Sciences Trust
(Series NAV/JAFMX)		 $48 0.92%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.92%
Net Assets $ 261,538,330
Holdings Count | Holding 177
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $261,538,330%
Total number of portfolio holdings $177%
Portfolio turnover rate $26%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
Industry Composition 
Biotechnology 32.4%
Pharmaceuticals 22.5%
Health care providers and services 17.3%
Health care equipment and supplies 16.1%
Life sciences tools and services 11.0%
Insurance 0.3%
Short-term investments and other 0.4%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Eli Lilly & Company 12.2%
UnitedHealth Group, Inc. 6.5%
Intuitive Surgical, Inc. 4.8%
Thermo Fisher Scientific, Inc. 4.5%
Merck & Company, Inc. 4.0%
Elevance Health, Inc. 3.8%
Stryker Corp. 3.6%
Danaher Corp. 3.4%
Regeneron Pharmaceuticals, Inc. 3.2%
Vertex Pharmaceuticals, Inc. 2.6%
C000022625 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Growth Trust
Class Name Series I
Trading Symbol JAETX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Growth Trust
(Series I/JAETX)		 $48 0.93%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.93%
Net Assets $ 611,761,363
Holdings Count | Holding 66
Investment Company Portfolio Turnover 80.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $611,761,363%
Total number of portfolio holdings $66%
Portfolio turnover rate $80%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
Sector Composition
Information technology 23.6%
Consumer discretionary 17.2%
Health care 14.9%
Communication services 14.2%
Industrials 9.3%
Financials 8.1%
Consumer staples 4.0%
Energy 4.0%
Real estate 1.5%
Materials 1.3%
Utilities 1.0%
Short-term investments and other 0.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
C000022626 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Growth Trust
Class Name Series II
Trading Symbol JAEUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Growth Trust
(Series II/JAEUX)		 $58 1.13%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.13%
Net Assets $ 611,761,363
Holdings Count | Holding 66
Investment Company Portfolio Turnover 80.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $611,761,363%
Total number of portfolio holdings $66%
Portfolio turnover rate $80%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
Sector Composition
Information technology 23.6%
Consumer discretionary 17.2%
Health care 14.9%
Communication services 14.2%
Industrials 9.3%
Financials 8.1%
Consumer staples 4.0%
Energy 4.0%
Real estate 1.5%
Materials 1.3%
Utilities 1.0%
Short-term investments and other 0.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
C000022624 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Growth Trust
Class Name Series NAV
Trading Symbol JAEVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Growth Trust
(Series NAV/JAEVX)		 $45 0.88%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.88%
Net Assets $ 611,761,363
Holdings Count | Holding 66
Investment Company Portfolio Turnover 80.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $611,761,363%
Total number of portfolio holdings $66%
Portfolio turnover rate $80%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
Sector Composition
Information technology 23.6%
Consumer discretionary 17.2%
Health care 14.9%
Communication services 14.2%
Industrials 9.3%
Financials 8.1%
Consumer staples 4.0%
Energy 4.0%
Real estate 1.5%
Materials 1.3%
Utilities 1.0%
Short-term investments and other 0.9%
Largest Holdings [Text Block]
Top Ten Holdings
Pinterest, Inc., Class A 4.1%
DexCom, Inc. 3.1%
Axon Enterprise, Inc. 2.9%
Spotify Technology SA 2.9%
Royal Caribbean Cruises, Ltd. 2.9%
Tradeweb Markets, Inc., Class A 2.8%
Flex, Ltd. 2.8%
Live Nation Entertainment, Inc. 2.6%
DraftKings, Inc., Class A 2.6%
Monolithic Power Systems, Inc. 2.6%
C000022665 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental All Cap Core Trust
Class Name Series I
Trading Symbol JEQAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental All Cap Core Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental All Cap Core Trust
(Series I/JEQAX)		 $40 0.75%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.75%
Net Assets $ 2,502,837,366
Holdings Count | Holding 48
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,502,837,366%
Total number of portfolio holdings $48%
Portfolio turnover rate $6%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
Sector Composition
Information technology 27.7%
Consumer discretionary 23.7%
Financials 14.9%
Communication services 10.4%
Health care 5.9%
Industrials 5.4%
Energy 4.9%
Real estate 3.4%
Consumer staples 1.5%
Materials 1.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
C000022666 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental All Cap Core Trust
Class Name Series II
Trading Symbol JFLGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental All Cap Core Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental All Cap Core Trust
(Series II/JFLGX)		 $50 0.95%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.95%
Net Assets $ 2,502,837,366
Holdings Count | Holding 48
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,502,837,366%
Total number of portfolio holdings $48%
Portfolio turnover rate $6%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
Sector Composition
Information technology 27.7%
Consumer discretionary 23.7%
Financials 14.9%
Communication services 10.4%
Health care 5.9%
Industrials 5.4%
Energy 4.9%
Real estate 3.4%
Consumer staples 1.5%
Materials 1.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
C000022664 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental All Cap Core Trust
Class Name Series NAV
Trading Symbol JADDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental All Cap Core Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental All Cap Core Trust
(Series NAV/JADDX)		 $37 0.70%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.70%
Net Assets $ 2,502,837,366
Holdings Count | Holding 48
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,502,837,366%
Total number of portfolio holdings $48%
Portfolio turnover rate $6%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
Sector Composition
Information technology 27.7%
Consumer discretionary 23.7%
Financials 14.9%
Communication services 10.4%
Health care 5.9%
Industrials 5.4%
Energy 4.9%
Real estate 3.4%
Consumer staples 1.5%
Materials 1.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Amazon.com, Inc. 9.0%
NVIDIA Corp. 7.4%
Alphabet, Inc., Class A 6.5%
Apple, Inc. 4.2%
Lennar Corp., Class A 4.0%
Morgan Stanley 3.9%
KKR & Company, Inc. 3.8%
Cheniere Energy, Inc. 3.5%
Analog Devices, Inc. 3.3%
First Hawaiian, Inc. 3.1%
C000022419 [Member]  
Shareholder Report [Line Items]  
Fund Name Opportunistic Fixed Income Trust
Class Name Series I
Trading Symbol JAEJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Opportunistic Fixed Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Opportunistic Fixed Income Trust
(Series I/JAEJX)		 $40 0.82%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.82%
Net Assets $ 155,311,763
Holdings Count | Holding 1,025
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $155,311,763%
Total number of portfolio holdings $1,025%
Portfolio turnover rate $43%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
Foreign government obligations 32.8%
U.S. Government Agency 15.9%
U.S. Government 14.4%
Corporate bonds 11.9%
Convertible bonds 6.0%
Asset backed securities 3.0%
Collateralized mortgage obligations – U.S. Government Agency 2.1%
Term loans 1.9%
Collateralized mortgage obligations – Commercial and residential 1.4%
Preferred securities 0.7%
Municipal bonds 0.2%
Short-term investments 9.7%
Country Composition
United States 60.4%
Brazil 6.0%
New Zealand 3.8%
Colombia 2.6%
Mexico 2.3%
Norway 2.3%
Iceland 1.8%
Australia 1.7%
Canada 1.7%
Cayman Islands 1.5%
Other countries 15.9%
Quality Composition
Graphical Representation - Allocation 2 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022420 [Member]  
Shareholder Report [Line Items]  
Fund Name Opportunistic Fixed Income Trust
Class Name Series II
Trading Symbol JAEHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Opportunistic Fixed Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Opportunistic Fixed Income Trust
(Series II/JAEHX)		 $50 1.02%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 1.02%
Net Assets $ 155,311,763
Holdings Count | Holding 1,025
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $155,311,763%
Total number of portfolio holdings $1,025%
Portfolio turnover rate $43%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
Foreign government obligations 32.8%
U.S. Government Agency 15.9%
U.S. Government 14.4%
Corporate bonds 11.9%
Convertible bonds 6.0%
Asset backed securities 3.0%
Collateralized mortgage obligations – U.S. Government Agency 2.1%
Term loans 1.9%
Collateralized mortgage obligations – Commercial and residential 1.4%
Preferred securities 0.7%
Municipal bonds 0.2%
Short-term investments 9.7%
Country Composition
United States 60.4%
Brazil 6.0%
New Zealand 3.8%
Colombia 2.6%
Mexico 2.3%
Norway 2.3%
Iceland 1.8%
Australia 1.7%
Canada 1.7%
Cayman Islands 1.5%
Other countries 15.9%
Quality Composition
Graphical Representation - Allocation 2 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022418 [Member]  
Shareholder Report [Line Items]  
Fund Name Opportunistic Fixed Income Trust
Class Name Series NAV
Trading Symbol JAEKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Opportunistic Fixed Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Opportunistic Fixed Income Trust
(Series NAV/JAEKX)		 $38 0.77%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.77%
Net Assets $ 155,311,763
Holdings Count | Holding 1,025
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $155,311,763%
Total number of portfolio holdings $1,025%
Portfolio turnover rate $43%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
Foreign government obligations 32.8%
U.S. Government Agency 15.9%
U.S. Government 14.4%
Corporate bonds 11.9%
Convertible bonds 6.0%
Asset backed securities 3.0%
Collateralized mortgage obligations – U.S. Government Agency 2.1%
Term loans 1.9%
Collateralized mortgage obligations – Commercial and residential 1.4%
Preferred securities 0.7%
Municipal bonds 0.2%
Short-term investments 9.7%
Country Composition
United States 60.4%
Brazil 6.0%
New Zealand 3.8%
Colombia 2.6%
Mexico 2.3%
Norway 2.3%
Iceland 1.8%
Australia 1.7%
Canada 1.7%
Cayman Islands 1.5%
Other countries 15.9%
Quality Composition
Graphical Representation - Allocation 2 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022447 [Member]  
Shareholder Report [Line Items]  
Fund Name High Yield Trust
Class Name Series I
Trading Symbol JAELX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the High Yield Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
High Yield Trust
(Series I/JAELX)		 $43 0.85%
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.85%
Net Assets $ 182,257,769
Holdings Count | Holding 401
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $182,257,769%
Total number of portfolio holdings $401%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 84.9%
Asset backed securities 6.5%
Term loans 4.5%
Convertible bonds 0.5%
Preferred securities 0.4%
Common stocks 0.3%
Foreign government obligations 0.3%
Short-term investments and other 2.6%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022448 [Member]  
Shareholder Report [Line Items]  
Fund Name High Yield Trust
Class Name Series II
Trading Symbol JAEOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the High Yield Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
High Yield Trust
(Series II/JAEOX)		 $53 1.05%
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.05%
Net Assets $ 182,257,769
Holdings Count | Holding 401
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $182,257,769%
Total number of portfolio holdings $401%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 84.9%
Asset backed securities 6.5%
Term loans 4.5%
Convertible bonds 0.5%
Preferred securities 0.4%
Common stocks 0.3%
Foreign government obligations 0.3%
Short-term investments and other 2.6%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022446 [Member]  
Shareholder Report [Line Items]  
Fund Name High Yield Trust
Class Name Series NAV
Trading Symbol JAEMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the High Yield Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
High Yield Trust
(Series NAV/JAEMX)		 $40 0.80%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.80%
Net Assets $ 182,257,769
Holdings Count | Holding 401
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $182,257,769%
Total number of portfolio holdings $401%
Portfolio turnover rate $22%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 84.9%
Asset backed securities 6.5%
Term loans 4.5%
Convertible bonds 0.5%
Preferred securities 0.4%
Common stocks 0.3%
Foreign government obligations 0.3%
Short-term investments and other 2.6%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022589 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Growth Portfolio
Class Name Series I
Trading Symbol JELGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Growth Portfolio
(Series I/JELGX)		 $9 0.17%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17%
Net Assets $ 5,584,982,329
Holdings Count | Holding 29
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,584,982,329%
Total number of portfolio holdings $29%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 96.3%
Equity 67.7%
Large blend 30.9%
U.S. large cap 16.5%
Emerging-market equity 6.4%
U.S. mid cap 5.9%
U.S. small cap 4.2%
International equity 3.8%
Fixed income 28.6%
Intermediate bond 28.6%
Unaffiliated investment companies 2.5%
Equity 2.5%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022590 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Growth Portfolio
Class Name Series II
Trading Symbol JAJAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Growth Portfolio
(Series II/JAJAX)		 $19 0.37%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37%
Net Assets $ 5,584,982,329
Holdings Count | Holding 29
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,584,982,329%
Total number of portfolio holdings $29%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 96.3%
Equity 67.7%
Large blend 30.9%
U.S. large cap 16.5%
Emerging-market equity 6.4%
U.S. mid cap 5.9%
U.S. small cap 4.2%
International equity 3.8%
Fixed income 28.6%
Intermediate bond 28.6%
Unaffiliated investment companies 2.5%
Equity 2.5%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022724 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Company Value Trust
Class Name Series I
Trading Symbol JAEPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Company Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Company Value Trust
(Series I/JAEPX)		 $56 1.13%
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.13%
Net Assets $ 122,495,521
Holdings Count | Holding 206
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $122,495,521%
Total number of portfolio holdings $206%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
Sector Composition
Financials 25.6%
Industrials 13.8%
Consumer discretionary 10.7%
Real estate 10.0%
Energy 8.9%
Health care 8.4%
Information technology 6.3%
Materials 4.8%
Utilities 4.0%
Consumer staples 2.0%
Communication services 1.5%
Short-term investments and other 4.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
C000022725 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Company Value Trust
Class Name Series II
Trading Symbol JAERX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Company Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Company Value Trust
(Series II/JAERX)		 $66 1.33%
Expenses Paid, Amount $ 66
Expense Ratio, Percent 1.33%
Net Assets $ 122,495,521
Holdings Count | Holding 206
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $122,495,521%
Total number of portfolio holdings $206%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
Sector Composition
Financials 25.6%
Industrials 13.8%
Consumer discretionary 10.7%
Real estate 10.0%
Energy 8.9%
Health care 8.4%
Information technology 6.3%
Materials 4.8%
Utilities 4.0%
Consumer staples 2.0%
Communication services 1.5%
Short-term investments and other 4.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
C000022723 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Company Value Trust
Class Name Series NAV
Trading Symbol JAEQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Company Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Company Value Trust
(Series NAV/JAEQX)		 $54 1.08%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.08%
Net Assets $ 122,495,521
Holdings Count | Holding 206
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $122,495,521%
Total number of portfolio holdings $206%
Portfolio turnover rate $17%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
Sector Composition
Financials 25.6%
Industrials 13.8%
Consumer discretionary 10.7%
Real estate 10.0%
Energy 8.9%
Health care 8.4%
Information technology 6.3%
Materials 4.8%
Utilities 4.0%
Consumer staples 2.0%
Communication services 1.5%
Short-term investments and other 4.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
PennyMac Financial Services, Inc. 1.7%
Pinnacle Financial Partners, Inc. 1.6%
Matador Resources Company 1.5%
Meritage Homes Corp. 1.2%
Popular, Inc. 1.2%
Strategic Education, Inc. 1.1%
Houlihan Lokey, Inc. 1.1%
Select Medical Holdings Corp. 1.1%
TechnipFMC PLC 1.1%
Terreno Realty Corp. 1.1%
C000022760 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Stock Market Index Trust
Class Name Series I
Trading Symbol JETSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Stock Market Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Stock Market Index Trust
(Series I/JETSX)		 $26 0.49%
Expenses Paid, Amount $ 26
Expense Ratio, Percent 0.49%
Net Assets $ 961,364,345
Holdings Count | Holding 3,178
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $961,364,345%
Total number of portfolio holdings $3,178%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
Sector Composition
Information technology 28.8%
Financials 12.7%
Health care 11.3%
Consumer discretionary 10.0%
Industrials 8.9%
Communication services 8.5%
Consumer staples 5.7%
Energy 3.6%
Materials 2.5%
Real estate 2.4%
Utilities 2.0%
Short-term investments and other 3.6%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
C000022761 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Stock Market Index Trust
Class Name Series II
Trading Symbol JAFFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Stock Market Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Stock Market Index Trust
(Series II/JAFFX)		 $37 0.69%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.69%
Net Assets $ 961,364,345
Holdings Count | Holding 3,178
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $961,364,345%
Total number of portfolio holdings $3,178%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
Sector Composition
Information technology 28.8%
Financials 12.7%
Health care 11.3%
Consumer discretionary 10.0%
Industrials 8.9%
Communication services 8.5%
Consumer staples 5.7%
Energy 3.6%
Materials 2.5%
Real estate 2.4%
Utilities 2.0%
Short-term investments and other 3.6%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
C000022641 [Member]  
Shareholder Report [Line Items]  
Fund Name Money Market Trust
Class Name Series I
Trading Symbol JHOXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Money Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Money Market Trust
(Series I/JHOXX)		 $17 0.33%
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.33%
Net Assets $ 2,246,189,906
Holdings Count | Holding 193
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,246,189,906
Total number of portfolio holdings $193
Weighted Average Maturity 55 Days
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 52.0%
U.S. Government 36.8%
Repurchase agreement 11.2%
Maturity Composition
Graphical Representation - Allocation 1 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022642 [Member]  
Shareholder Report [Line Items]  
Fund Name Money Market Trust
Class Name Series II
Trading Symbol JAAXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Money Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Money Market Trust
(Series II/JAAXX)		 $27 0.53%
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.53%
Net Assets $ 2,246,189,906
Holdings Count | Holding 193
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,246,189,906
Total number of portfolio holdings $193
Weighted Average Maturity 55 Days
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 52.0%
U.S. Government 36.8%
Repurchase agreement 11.2%
Maturity Composition
Graphical Representation - Allocation 1 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022640 [Member]  
Shareholder Report [Line Items]  
Fund Name Money Market Trust
Class Name Series NAV
Trading Symbol JABXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Money Market Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Money Market Trust
(Series NAV/JABXX)		 $14 0.28%
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.28%
Net Assets $ 2,246,189,906
Holdings Count | Holding 193
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $2,246,189,906
Total number of portfolio holdings $193
Weighted Average Maturity 55 Days
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total investments of the fund.
Portfolio Composition
U.S. Government Agency 52.0%
U.S. Government 36.8%
Repurchase agreement 11.2%
Maturity Composition
Graphical Representation - Allocation 1 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022685 [Member]  
Shareholder Report [Line Items]  
Fund Name International Small Company Trust
Class Name Series I
Trading Symbol JAJCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Small Company Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Small Company Trust
(Series I/JAJCX)		 $54 1.07%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.07%
Net Assets $ 96,144,161
Holdings Count | Holding 2,986
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $96,144,161%
Total number of portfolio holdings $2,986%
Portfolio turnover rate $7%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
Sector Composition
Industrials 23.8%
Financials 13.9%
Consumer discretionary 12.2%
Materials 11.6%
Information technology 9.3%
Consumer staples 6.0%
Health care 5.5%
Energy 5.2%
Real estate 4.4%
Communication services 3.7%
Utilities 2.9%
Short-term investments and other 1.5%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
C000022686 [Member]  
Shareholder Report [Line Items]  
Fund Name International Small Company Trust
Class Name Series II
Trading Symbol JAADX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Small Company Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Small Company Trust
(Series II/JAADX)		 $64 1.27%
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.27%
Net Assets $ 96,144,161
Holdings Count | Holding 2,986
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $96,144,161%
Total number of portfolio holdings $2,986%
Portfolio turnover rate $7%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
Sector Composition
Industrials 23.8%
Financials 13.9%
Consumer discretionary 12.2%
Materials 11.6%
Information technology 9.3%
Consumer staples 6.0%
Health care 5.5%
Energy 5.2%
Real estate 4.4%
Communication services 3.7%
Utilities 2.9%
Short-term investments and other 1.5%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
C000022684 [Member]  
Shareholder Report [Line Items]  
Fund Name International Small Company Trust
Class Name Series NAV
Trading Symbol JAJDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the International Small Company Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
International Small Company Trust
(Series NAV/JAJDX)		 $51 1.02%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 1.02%
Net Assets $ 96,144,161
Holdings Count | Holding 2,986
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $96,144,161%
Total number of portfolio holdings $2,986%
Portfolio turnover rate $7%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
Sector Composition
Industrials 23.8%
Financials 13.9%
Consumer discretionary 12.2%
Materials 11.6%
Information technology 9.3%
Consumer staples 6.0%
Health care 5.5%
Energy 5.2%
Real estate 4.4%
Communication services 3.7%
Utilities 2.9%
Short-term investments and other 1.5%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Swiss Prime Site AG 0.4%
Baloise Holding AG 0.3%
LEG Immobilien SE 0.3%
GEA Group AG 0.3%
Vistry Group PLC 0.3%
PSP Swiss Property AG 0.3%
Adecco Group AG 0.3%
Georg Fischer AG 0.3%
BPER Banca SpA 0.3%
Helvetia Holding AG 0.3%
C000022594 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Balanced Portfolio
Class Name Series I
Trading Symbol JELBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Balanced Portfolio
(Series I/JELBX)		 $9 0.17%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17%
Net Assets $ 4,191,788,110
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $4,191,788,110%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.0%
Equity 48.0%
Large blend 22.1%
U.S. large cap 13.0%
Emerging-market equity 4.1%
U.S. mid cap 3.8%
U.S. small cap 2.9%
International equity 2.1%
Fixed income 49.0%
Intermediate bond 49.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022595 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Balanced Portfolio
Class Name Series II
Trading Symbol JAJRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Balanced Portfolio
(Series II/JAJRX)		 $19 0.37%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37%
Net Assets $ 4,191,788,110
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $4,191,788,110%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.0%
Equity 48.0%
Large blend 22.1%
U.S. large cap 13.0%
Emerging-market equity 4.1%
U.S. mid cap 3.8%
U.S. small cap 2.9%
International equity 2.1%
Fixed income 49.0%
Intermediate bond 49.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022593 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Balanced Portfolio
Class Name Series NAV
Trading Symbol JAIYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Balanced Portfolio
(Series NAV/JAIYX)		 $6 0.12%
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12%
Net Assets $ 4,191,788,110
Holdings Count | Holding 28
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $4,191,788,110%
Total number of portfolio holdings $28%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 97.0%
Equity 48.0%
Large blend 22.1%
U.S. large cap 13.0%
Emerging-market equity 4.1%
U.S. mid cap 3.8%
U.S. small cap 2.9%
International equity 2.1%
Fixed income 49.0%
Intermediate bond 49.0%
Unaffiliated investment companies 1.9%
Equity 1.9%
Short-term investments and other 1.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022621 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Index Trust
Class Name Series I
Trading Symbol JECIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Index Trust
(Series I/JECIX)		 $23 0.45%
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.45%
Net Assets $ 1,217,030,004
Holdings Count | Holding 403
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,217,030,004%
Total number of portfolio holdings $403%
Portfolio turnover rate $8%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
Sector Composition
Industrials 21.4%
Financials 15.5%
Consumer discretionary 14.3%
Information technology 9.2%
Health care 9.0%
Real estate 6.9%
Materials 6.3%
Energy 5.8%
Consumer staples 4.5%
Utilities 2.5%
Communication services 1.5%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
C000022622 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Index Trust
Class Name Series II
Trading Symbol JAEZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Index Trust
(Series II/JAEZX)		 $33 0.65%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65%
Net Assets $ 1,217,030,004
Holdings Count | Holding 403
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,217,030,004%
Total number of portfolio holdings $403%
Portfolio turnover rate $8%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
Sector Composition
Industrials 21.4%
Financials 15.5%
Consumer discretionary 14.3%
Information technology 9.2%
Health care 9.0%
Real estate 6.9%
Materials 6.3%
Energy 5.8%
Consumer staples 4.5%
Utilities 2.5%
Communication services 1.5%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
C000022620 [Member]  
Shareholder Report [Line Items]  
Fund Name Mid Cap Index Trust
Class Name Series NAV
Trading Symbol JAEYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Mid Cap Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Mid Cap Index Trust
(Series NAV/JAEYX)		 $20 0.40%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.40%
Net Assets $ 1,217,030,004
Holdings Count | Holding 403
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,217,030,004%
Total number of portfolio holdings $403%
Portfolio turnover rate $8%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
Sector Composition
Industrials 21.4%
Financials 15.5%
Consumer discretionary 14.3%
Information technology 9.2%
Health care 9.0%
Real estate 6.9%
Materials 6.3%
Energy 5.8%
Consumer staples 4.5%
Utilities 2.5%
Communication services 1.5%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Pure Storage, Inc., Class A 0.7%
Carlisle Companies, Inc. 0.7%
Williams-Sonoma, Inc. 0.7%
EMCOR Group, Inc. 0.6%
Lennox International, Inc. 0.6%
Illumina, Inc. 0.6%
Reliance, Inc. 0.6%
BioMarin Pharmaceutical, Inc. 0.6%
Burlington Stores, Inc. 0.6%
Manhattan Associates, Inc. 0.5%
C000022708 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Opportunities Trust
Class Name Series I
Trading Symbol JADLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Opportunities Trust
(Series I/JADLX)		 $44 0.88%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.88%
Net Assets $ 159,236,359
Holdings Count | Holding 1,072
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $159,236,359%
Total number of portfolio holdings $1,072%
Portfolio turnover rate $10%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
Sector Composition
Financials 21.7%
Industrials 17.5%
Consumer discretionary 14.4%
Information technology 11.5%
Health care 11.4%
Energy 8.7%
Materials 6.9%
Consumer staples 3.0%
Communication services 2.3%
Real estate 1.7%
Utilities 0.1%
Short-term investments and other 0.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
C000022709 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Opportunities Trust
Class Name Series II
Trading Symbol JADPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Opportunities Trust
(Series II/JADPX)		 $54 1.08%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.08%
Net Assets $ 159,236,359
Holdings Count | Holding 1,072
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $159,236,359%
Total number of portfolio holdings $1,072%
Portfolio turnover rate $10%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
Sector Composition
Financials 21.7%
Industrials 17.5%
Consumer discretionary 14.4%
Information technology 11.5%
Health care 11.4%
Energy 8.7%
Materials 6.9%
Consumer staples 3.0%
Communication services 2.3%
Real estate 1.7%
Utilities 0.1%
Short-term investments and other 0.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
C000022707 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Opportunities Trust
Class Name Series NAV
Trading Symbol JADMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Opportunities Trust
(Series NAV/JADMX)		 $41 0.83%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.83%
Net Assets $ 159,236,359
Holdings Count | Holding 1,072
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $159,236,359%
Total number of portfolio holdings $1,072%
Portfolio turnover rate $10%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
Sector Composition
Financials 21.7%
Industrials 17.5%
Consumer discretionary 14.4%
Information technology 11.5%
Health care 11.4%
Energy 8.7%
Materials 6.9%
Consumer staples 3.0%
Communication services 2.3%
Real estate 1.7%
Utilities 0.1%
Short-term investments and other 0.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
CyberArk Software, Ltd. 0.9%
SPX Technologies, Inc. 0.8%
Grand Canyon Education, Inc. 0.7%
Matador Resources Company 0.7%
Novanta, Inc. 0.7%
TopBuild Corp. 0.7%
PJT Partners, Inc., Class A 0.7%
MACOM Technology Solutions Holdings, Inc. 0.7%
Appfolio, Inc., Class A 0.6%
Intapp, Inc. 0.6%
C000022740 [Member]  
Shareholder Report [Line Items]  
Fund Name Strategic Income Opportunities Trust
Class Name Series I
Trading Symbol JESNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Strategic Income Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Strategic Income Opportunities Trust
(Series I/JESNX)		 $39 0.79%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.79%
Net Assets $ 398,569,525
Holdings Count | Holding 522
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $398,569,525%
Total number of portfolio holdings $522%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 42.4%
Foreign government obligations 22.9%
U.S. Government 9.3%
U.S. Government Agency 4.7%
Convertible bonds 3.2%
Municipal bonds 3.1%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Collateralized mortgage obligations – Commercial and residential 2.9%
Term loans 2.3%
Asset backed securities 1.8%
Preferred securities 1.0%
Short-term investments and other 3.3%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022741 [Member]  
Shareholder Report [Line Items]  
Fund Name Strategic Income Opportunities Trust
Class Name Series II
Trading Symbol JESPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Strategic Income Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Strategic Income Opportunities Trust
(Series II/JESPX)		 $49 0.99%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.99%
Net Assets $ 398,569,525
Holdings Count | Holding 522
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $398,569,525%
Total number of portfolio holdings $522%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 42.4%
Foreign government obligations 22.9%
U.S. Government 9.3%
U.S. Government Agency 4.7%
Convertible bonds 3.2%
Municipal bonds 3.1%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Collateralized mortgage obligations – Commercial and residential 2.9%
Term loans 2.3%
Asset backed securities 1.8%
Preferred securities 1.0%
Short-term investments and other 3.3%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000022739 [Member]  
Shareholder Report [Line Items]  
Fund Name Strategic Income Opportunities Trust
Class Name Series NAV
Trading Symbol JVRNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Strategic Income Opportunities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Strategic Income Opportunities Trust
(Series NAV/JVRNX)		 $37 0.74%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.74%
Net Assets $ 398,569,525
Holdings Count | Holding 522
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $398,569,525%
Total number of portfolio holdings $522%
Portfolio turnover rate $21%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 42.4%
Foreign government obligations 22.9%
U.S. Government 9.3%
U.S. Government Agency 4.7%
Convertible bonds 3.2%
Municipal bonds 3.1%
Collateralized mortgage obligations – U.S. Government Agency 3.1%
Collateralized mortgage obligations – Commercial and residential 2.9%
Term loans 2.3%
Asset backed securities 1.8%
Preferred securities 1.0%
Short-term investments and other 3.3%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000099626 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Growth Portfolio
Class Name Series I
Trading Symbol JHGPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Growth Portfolio
(Series I/JHGPX)		 $6 0.12%
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12%
Net Assets $ 5,202,706,117
Holdings Count | Holding 3
Investment Company Portfolio Turnover 0.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,202,706,117%
Total number of portfolio holdings $3%
Portfolio turnover rate $0%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 70.7%
Fixed income 29.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099627 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Growth Portfolio
Class Name Series II
Trading Symbol JAIKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Growth Portfolio
(Series II/JAIKX)		 $16 0.32%
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.32%
Net Assets $ 5,202,706,117
Holdings Count | Holding 3
Investment Company Portfolio Turnover 0.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,202,706,117%
Total number of portfolio holdings $3%
Portfolio turnover rate $0%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 70.7%
Fixed income 29.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099628 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Growth Portfolio
Class Name Series NAV
Trading Symbol JAIJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Growth Portfolio
(Series NAV/JAIJX)		 $3 0.06%
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06%
Net Assets $ 5,202,706,117
Holdings Count | Holding 3
Investment Company Portfolio Turnover 0.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,202,706,117%
Total number of portfolio holdings $3%
Portfolio turnover rate $0%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 70.7%
Fixed income 29.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022588 [Member]  
Shareholder Report [Line Items]  
Fund Name Managed Volatility Growth Portfolio
Class Name Series NAV
Trading Symbol JAIZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Managed Volatility Growth Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Managed Volatility Growth Portfolio
(Series NAV/JAIZX)		 $6 0.12%
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12%
Net Assets $ 5,584,982,329
Holdings Count | Holding 29
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,584,982,329%
Total number of portfolio holdings $29%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 96.3%
Equity 67.7%
Large blend 30.9%
U.S. large cap 16.5%
Emerging-market equity 6.4%
U.S. mid cap 5.9%
U.S. small cap 4.2%
International equity 3.8%
Fixed income 28.6%
Intermediate bond 28.6%
Unaffiliated investment companies 2.5%
Equity 2.5%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000047759 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value Emerging Markets Equity Trust
Class Name Series I
Trading Symbol JAJBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value Emerging Markets Equity Trust, formerly Emerging Markets Value Trust, (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value Emerging Markets Equity Trust
(Series I/JAJBX)		 $54 1.07%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.07%
Net Assets $ 228,997,231
Holdings Count | Holding 178
Investment Company Portfolio Turnover 109.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $228,997,231%
Total number of portfolio holdings $178%
Portfolio turnover rate $109%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
Sector Composition
Information technology 27.1%
Materials 21.6%
Consumer discretionary 16.2%
Industrials 13.4%
Consumer staples 6.2%
Health care 4.7%
Real estate 2.4%
Communication services 1.6%
Financials 1.6%
Energy 0.2%
Utilities 0.2%
Other assets and liabilities, net 4.8%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
C000047760 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value Emerging Markets Equity Trust
Class Name Series II
Trading Symbol JEMTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value Emerging Markets Equity Trust, formerly Emerging Markets Value Trust, (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value Emerging Markets Equity Trust
(Series II/JEMTX)		 $64 1.27%
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.27%
Net Assets $ 228,997,231
Holdings Count | Holding 178
Investment Company Portfolio Turnover 109.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $228,997,231%
Total number of portfolio holdings $178%
Portfolio turnover rate $109%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
Sector Composition
Information technology 27.1%
Materials 21.6%
Consumer discretionary 16.2%
Industrials 13.4%
Consumer staples 6.2%
Health care 4.7%
Real estate 2.4%
Communication services 1.6%
Financials 1.6%
Energy 0.2%
Utilities 0.2%
Other assets and liabilities, net 4.8%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
C000047761 [Member]  
Shareholder Report [Line Items]  
Fund Name Disciplined Value Emerging Markets Equity Trust
Class Name Series NAV
Trading Symbol JHVTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Disciplined Value Emerging Markets Equity Trust, formerly Emerging Markets Value Trust, (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Disciplined Value Emerging Markets Equity Trust
(Series NAV/JHVTX)		 $52 1.02%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.02%
Net Assets $ 228,997,231
Holdings Count | Holding 178
Investment Company Portfolio Turnover 109.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $228,997,231%
Total number of portfolio holdings $178%
Portfolio turnover rate $109%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
Sector Composition
Information technology 27.1%
Materials 21.6%
Consumer discretionary 16.2%
Industrials 13.4%
Consumer staples 6.2%
Health care 4.7%
Real estate 2.4%
Communication services 1.6%
Financials 1.6%
Energy 0.2%
Utilities 0.2%
Other assets and liabilities, net 4.8%
Country Composition
Graphical Representation - Allocation 2 Chart
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
SK Hynix, Inc. 6.1%
Samsung Electronics Company, Ltd. 4.1%
Midea Group Company, Ltd., Class A 3.2%
BOE Technology Group Company, Ltd., Class A 3.1%
Taiwan Semiconductor Manufacturing Company, Ltd. 3.0%
Gree Electric Appliances, Inc. of Zhuhai, Class A 2.7%
Beijing New Building Materials PLC, Class A 2.3%
Genius Electronic Optical Company, Ltd. 2.2%
Yageo Corp. 2.1%
Beijing Roborock Technology Company, Ltd., Class A 2.0%
C000022744 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental Large Cap Value Trust
Class Name Series I
Trading Symbol JVFLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental Large Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental Large Cap Value Trust
(Series I/JVFLX)		 $40 0.77%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.77%
Net Assets $ 808,589,942
Holdings Count | Holding 56
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $808,589,942%
Total number of portfolio holdings $56%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
Sector Composition
Financials 21.4%
Health care 16.4%
Information technology 12.5%
Industrials 12.3%
Consumer staples 8.9%
Energy 7.9%
Consumer discretionary 7.6%
Communication services 6.7%
Real estate 3.1%
Materials 2.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
C000022745 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental Large Cap Value Trust
Class Name Series II
Trading Symbol JADJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental Large Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental Large Cap Value Trust
(Series II/JADJX)		 $51 0.97%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 0.97%
Net Assets $ 808,589,942
Holdings Count | Holding 56
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $808,589,942%
Total number of portfolio holdings $56%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
Sector Composition
Financials 21.4%
Health care 16.4%
Information technology 12.5%
Industrials 12.3%
Consumer staples 8.9%
Energy 7.9%
Consumer discretionary 7.6%
Communication services 6.7%
Real estate 3.1%
Materials 2.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
C000022743 [Member]  
Shareholder Report [Line Items]  
Fund Name Fundamental Large Cap Value Trust
Class Name Series NAV
Trading Symbol JADIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Fundamental Large Cap Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Fundamental Large Cap Value Trust
(Series NAV/JADIX)		 $38 0.72%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.72%
Net Assets $ 808,589,942
Holdings Count | Holding 56
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $808,589,942%
Total number of portfolio holdings $56%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
Sector Composition
Financials 21.4%
Health care 16.4%
Information technology 12.5%
Industrials 12.3%
Consumer staples 8.9%
Energy 7.9%
Consumer discretionary 7.6%
Communication services 6.7%
Real estate 3.1%
Materials 2.0%
Short-term investments and other 1.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Elevance Health, Inc. 5.3%
Oracle Corp. 4.9%
Walmart, Inc. 4.0%
Cheniere Energy, Inc. 3.9%
KKR & Company, Inc. 3.9%
Lennar Corp., Class A 3.3%
United Rentals, Inc. 3.3%
Comcast Corp., Class A 3.2%
Parker-Hannifin Corp. 3.2%
Crown Castle, Inc. 3.1%
C000022820 [Member]  
Shareholder Report [Line Items]  
Fund Name Science & Technology Trust
Class Name Series I
Trading Symbol JESTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Science & Technology Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Science & Technology Trust
(Series I/JESTX)		 $55 0.98%
Expenses Paid, Amount $ 55
Expense Ratio, Percent 0.98%
Net Assets $ 1,094,612,980
Holdings Count | Holding 92
Investment Company Portfolio Turnover 127.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,094,612,980%
Total number of portfolio holdings $92%
Portfolio turnover rate $127%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
Sector Composition
Information technology 82.4%
Communication services 14.3%
Health care 1.3%
Consumer discretionary 1.0%
Industrials 0.4%
Financials 0.1%
Short-term investments and other 0.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
C000022821 [Member]  
Shareholder Report [Line Items]  
Fund Name Science & Technology Trust
Class Name Series II
Trading Symbol JAFUX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Science & Technology Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Science & Technology Trust
(Series II/JAFUX)		 $66 1.18%
Expenses Paid, Amount $ 66
Expense Ratio, Percent 1.18%
Net Assets $ 1,094,612,980
Holdings Count | Holding 92
Investment Company Portfolio Turnover 127.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,094,612,980%
Total number of portfolio holdings $92%
Portfolio turnover rate $127%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
Sector Composition
Information technology 82.4%
Communication services 14.3%
Health care 1.3%
Consumer discretionary 1.0%
Industrials 0.4%
Financials 0.1%
Short-term investments and other 0.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
C000022819 [Member]  
Shareholder Report [Line Items]  
Fund Name Science & Technology Trust
Class Name Series NAV
Trading Symbol JAFSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Science & Technology Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Science & Technology Trust
(Series NAV/JAFSX)		 $52 0.93%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 0.93%
Net Assets $ 1,094,612,980
Holdings Count | Holding 92
Investment Company Portfolio Turnover 127.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,094,612,980%
Total number of portfolio holdings $92%
Portfolio turnover rate $127%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
Sector Composition
Information technology 82.4%
Communication services 14.3%
Health care 1.3%
Consumer discretionary 1.0%
Industrials 0.4%
Financials 0.1%
Short-term investments and other 0.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Apple, Inc. 13.2%
NVIDIA Corp. 11.8%
Broadcom, Inc. 5.5%
Microsoft Corp. 5.1%
Meta Platforms, Inc., Class A 4.9%
Alphabet, Inc., Class A 4.0%
Synopsys, Inc. 3.5%
KLA Corp. 3.4%
ServiceNow, Inc. 3.2%
Netflix, Inc. 2.7%
C000078286 [Member]  
Shareholder Report [Line Items]  
Fund Name Select Bond Trust
Class Name Series I
Trading Symbol JAFZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Select Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Select Bond Trust
(Series I/JAFZX)		 $31 0.62%
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.62%
Net Assets $ 5,949,721,584
Holdings Count | Holding 739
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,949,721,584%
Total number of portfolio holdings $739%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government Agency 38.0%
Corporate bonds 31.0%
U.S. Government 17.7%
Asset backed securities 7.5%
Collateralized mortgage obligations – Commercial and residential 3.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.5%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000078287 [Member]  
Shareholder Report [Line Items]  
Fund Name Select Bond Trust
Class Name Series II
Trading Symbol JHBDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Select Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Select Bond Trust
(Series II/JHBDX)		 $41 0.82%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.82%
Net Assets $ 5,949,721,584
Holdings Count | Holding 739
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,949,721,584%
Total number of portfolio holdings $739%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government Agency 38.0%
Corporate bonds 31.0%
U.S. Government 17.7%
Asset backed securities 7.5%
Collateralized mortgage obligations – Commercial and residential 3.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.5%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
The fund is subject to various risks as described in the fund's prospectuses. For more information, please refer to the "Principal risks" section of the prospectuses.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000078285 [Member]  
Shareholder Report [Line Items]  
Fund Name Select Bond Trust
Class Name Series NAV
Trading Symbol JAGBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Select Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Select Bond Trust
(Series NAV/JAGBX)		 $29 0.58%
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.58%
Net Assets $ 5,949,721,584
Holdings Count | Holding 739
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $5,949,721,584%
Total number of portfolio holdings $739%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government Agency 38.0%
Corporate bonds 31.0%
U.S. Government 17.7%
Asset backed securities 7.5%
Collateralized mortgage obligations – Commercial and residential 3.4%
Collateralized mortgage obligations – U.S. Government Agency 1.0%
Municipal bonds 0.5%
Short-term investments and other 0.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000099623 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Conservative Portfolio
Class Name Series I
Trading Symbol JHCIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Conservative Portfolio
(Series I/JHCIX)		 $7 0.13%
Expenses Paid, Amount $ 7
Expense Ratio, Percent 0.13%
Net Assets $ 157,317,121
Holdings Count | Holding 3
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $157,317,121%
Total number of portfolio holdings $3%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 80.0%
Equity 20.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099624 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Conservative Portfolio
Class Name Series II
Trading Symbol JAIRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Conservative Portfolio
(Series II/JAIRX)		 $17 0.33%
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.33%
Net Assets $ 157,317,121
Holdings Count | Holding 3
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $157,317,121%
Total number of portfolio holdings $3%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 80.0%
Equity 20.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099625 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Conservative Portfolio
Class Name Series NAV
Trading Symbol JAIQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Conservative Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Conservative Portfolio
(Series NAV/JAIQX)		 $4 0.08%
Expenses Paid, Amount $ 4
Expense Ratio, Percent 0.08%
Net Assets $ 157,317,121
Holdings Count | Holding 3
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $157,317,121%
Total number of portfolio holdings $3%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 80.0%
Equity 20.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000111804 [Member]  
Shareholder Report [Line Items]  
Fund Name Strategic Equity Allocation Trust
Class Name Series NAV
Trading Symbol JAFVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Strategic Equity Allocation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Strategic Equity Allocation Trust
(Series NAV/JAFVX)		 $28 0.53%
Expenses Paid, Amount $ 28
Expense Ratio, Percent 0.53%
Net Assets $ 7,209,319,208
Holdings Count | Holding 3,387
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $7,209,319,208%
Total number of portfolio holdings $3,387%
Portfolio turnover rate $2%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 3.9%
NVIDIA Corp. 3.5%
Apple, Inc. 3.5%
Amazon.com, Inc. 2.1%
Meta Platforms, Inc., Class A 1.3%
Alphabet, Inc., Class A 1.3%
Alphabet, Inc., Class C 1.1%
Novo Nordisk A/S, Class B 0.9%
Berkshire Hathaway, Inc., Class B 0.9%
Eli Lilly & Company 0.9%
Sector Composition
Information technology 21.5%
Financials 14.7%
Industrials 11.9%
Health care 11.9%
Consumer discretionary 10.3%
Communication services 6.4%
Consumer staples 6.1%
Energy 4.0%
Materials 3.9%
Real estate 2.6%
Utilities 2.5%
Short-term investments and other 4.2%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 3.9%
NVIDIA Corp. 3.5%
Apple, Inc. 3.5%
Amazon.com, Inc. 2.1%
Meta Platforms, Inc., Class A 1.3%
Alphabet, Inc., Class A 1.3%
Alphabet, Inc., Class C 1.1%
Novo Nordisk A/S, Class B 0.9%
Berkshire Hathaway, Inc., Class B 0.9%
Eli Lilly & Company 0.9%
C000022759 [Member]  
Shareholder Report [Line Items]  
Fund Name Total Stock Market Index Trust
Class Name Series NAV
Trading Symbol JAFEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Total Stock Market Index Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Total Stock Market Index Trust
(Series NAV/JAFEX)		 $23 0.44%
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.44%
Net Assets $ 961,364,345
Holdings Count | Holding 3,178
Investment Company Portfolio Turnover 3.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $961,364,345%
Total number of portfolio holdings $3,178%
Portfolio turnover rate $3%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
Sector Composition
Information technology 28.8%
Financials 12.7%
Health care 11.3%
Consumer discretionary 10.0%
Industrials 8.9%
Communication services 8.5%
Consumer staples 5.7%
Energy 3.6%
Materials 2.5%
Real estate 2.4%
Utilities 2.0%
Short-term investments and other 3.6%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.8%
Apple, Inc. 5.7%
NVIDIA Corp. 5.4%
Amazon.com, Inc. 3.5%
Meta Platforms, Inc., Class A 1.9%
Alphabet, Inc., Class A 1.9%
Alphabet, Inc., Class C 1.8%
Eli Lilly & Company 1.5%
Broadcom, Inc. 1.3%
Tesla, Inc. 1.1%
C000022832 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Stock Trust
Class Name Series I
Trading Symbol JESGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Stock Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Stock Trust
(Series I/JESGX)		 $57 1.12%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.12%
Net Assets $ 279,511,446
Holdings Count | Holding 106
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,511,446%
Total number of portfolio holdings $106%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
Sector Composition
Industrials 24.5%
Health care 23.9%
Information technology 16.1%
Consumer discretionary 11.4%
Energy 5.5%
Financials 5.3%
Communication services 3.3%
Consumer staples 3.3%
Materials 2.7%
Real estate 2.7%
Short-term investments and other 1.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
C000022833 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Stock Trust
Class Name Series II
Trading Symbol JAGQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Stock Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029 800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Stock Trust
(Series II/JAGQX)		 $67 1.32%
Expenses Paid, Amount $ 67
Expense Ratio, Percent 1.32%
Net Assets $ 279,511,446
Holdings Count | Holding 106
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,511,446%
Total number of portfolio holdings $106%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
Sector Composition
Industrials 24.5%
Health care 23.9%
Information technology 16.1%
Consumer discretionary 11.4%
Energy 5.5%
Financials 5.3%
Communication services 3.3%
Consumer staples 3.3%
Materials 2.7%
Real estate 2.7%
Short-term investments and other 1.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
C000022831 [Member]  
Shareholder Report [Line Items]  
Fund Name Small Cap Stock Trust
Class Name Series NAV
Trading Symbol JAGPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Small Cap Stock Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Small Cap Stock Trust
(Series NAV/JAGPX)		 $54 1.07%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.07%
Net Assets $ 279,511,446
Holdings Count | Holding 106
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,511,446%
Total number of portfolio holdings $106%
Portfolio turnover rate $15%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
Sector Composition
Industrials 24.5%
Health care 23.9%
Information technology 16.1%
Consumer discretionary 11.4%
Energy 5.5%
Financials 5.3%
Communication services 3.3%
Consumer staples 3.3%
Materials 2.7%
Real estate 2.7%
Short-term investments and other 1.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
e.l.f. Beauty, Inc. 3.3%
Verra Mobility Corp. 2.8%
Applied Industrial Technologies, Inc. 2.7%
PROCEPT BioRobotics Corp. 2.6%
Fluor Corp. 2.4%
Cabot Corp. 2.3%
The AZEK Company, Inc. 2.1%
Curtiss-Wright Corp. 2.0%
Comfort Systems USA, Inc. 1.9%
Viper Energy, Inc. 1.8%
C000047764 [Member]  
Shareholder Report [Line Items]  
Fund Name American Global Growth Trust
Class Name Series I
Trading Symbol JAJQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Global Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Global Growth Trust
(Series I/JAJQX)		 $35 0.65%
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.65%
Net Assets $ 205,547,906
Holdings Count | Holding 1
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $205,547,906%
Total number of portfolio holdings $1%
Portfolio turnover rate $4%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 28.5%
Health care 15.4%
Industrials 13.6%
Consumer discretionary 12.7%
Financials 10.8%
Communication services 5.7%
Energy 4.0%
Consumer staples 3.3%
Materials 2.4%
Utilities 0.2%
Real estate 0.1%
Short-term investments and other 3.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000047762 [Member]  
Shareholder Report [Line Items]  
Fund Name American Global Growth Trust
Class Name Series II
Trading Symbol JAHWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Global Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Global Growth Trust
(Series II/JAHWX)		 $38 0.72%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.72%
Net Assets $ 205,547,906
Holdings Count | Holding 1
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $205,547,906%
Total number of portfolio holdings $1%
Portfolio turnover rate $4%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 28.5%
Health care 15.4%
Industrials 13.6%
Consumer discretionary 12.7%
Financials 10.8%
Communication services 5.7%
Energy 4.0%
Consumer staples 3.3%
Materials 2.4%
Utilities 0.2%
Real estate 0.1%
Short-term investments and other 3.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000047763 [Member]  
Shareholder Report [Line Items]  
Fund Name American Global Growth Trust
Class Name Series III
Trading Symbol JAHVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Global Growth Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Global Growth Trust
(Series III/JAHVX)		 $16 0.30%
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30%
Net Assets $ 205,547,906
Holdings Count | Holding 1
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $205,547,906%
Total number of portfolio holdings $1%
Portfolio turnover rate $4%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Sector Composition
Information technology 28.5%
Health care 15.4%
Industrials 13.6%
Consumer discretionary 12.7%
Financials 10.8%
Communication services 5.7%
Energy 4.0%
Consumer staples 3.3%
Materials 2.4%
Utilities 0.2%
Real estate 0.1%
Short-term investments and other 3.3%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000022812 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Securities Trust
Class Name Series I
Trading Symbol JADBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Real Estate Securities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Real Estate Securities Trust
(Series I/JADBX)		 $40 0.81%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.81%
Net Assets $ 282,655,599
Holdings Count | Holding 37
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $282,655,599%
Total number of portfolio holdings $37%
Portfolio turnover rate $32%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
Industry Composition 
Specialized REITs 25.8%
Residential REITs 18.3%
Retail REITs 13.6%
Industrial REITs 12.8%
Health care REITs 11.4%
Diversified REITs 5.7%
Office REITs 3.1%
Hotels, restaurants and leisure 2.2%
Real estate management and development 2.2%
Hotel and resort REITs 2.0%
Health care providers and services 1.1%
Short-term investments and other 1.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
C000022813 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Securities Trust
Class Name Series II
Trading Symbol JAJLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Real Estate Securities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Real Estate Securities Trust
(Series II/JAJLX)		 $50 1.01%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 1.01%
Net Assets $ 282,655,599
Holdings Count | Holding 37
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $282,655,599%
Total number of portfolio holdings $37%
Portfolio turnover rate $32%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
Industry Composition 
Specialized REITs 25.8%
Residential REITs 18.3%
Retail REITs 13.6%
Industrial REITs 12.8%
Health care REITs 11.4%
Diversified REITs 5.7%
Office REITs 3.1%
Hotels, restaurants and leisure 2.2%
Real estate management and development 2.2%
Hotel and resort REITs 2.0%
Health care providers and services 1.1%
Short-term investments and other 1.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
C000022811 [Member]  
Shareholder Report [Line Items]  
Fund Name Real Estate Securities Trust
Class Name Series NAV
Trading Symbol JAJMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Real Estate Securities Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Real Estate Securities Trust
(Series NAV/JAJMX)		 $38 0.76%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.76%
Net Assets $ 282,655,599
Holdings Count | Holding 37
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $282,655,599%
Total number of portfolio holdings $37%
Portfolio turnover rate $32%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
Industry Composition 
Specialized REITs 25.8%
Residential REITs 18.3%
Retail REITs 13.6%
Industrial REITs 12.8%
Health care REITs 11.4%
Diversified REITs 5.7%
Office REITs 3.1%
Hotels, restaurants and leisure 2.2%
Real estate management and development 2.2%
Hotel and resort REITs 2.0%
Health care providers and services 1.1%
Short-term investments and other 1.8%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Prologis, Inc. 10.0%
Equinix, Inc. 8.1%
Welltower, Inc. 6.7%
AvalonBay Communities, Inc. 6.2%
Essex Property Trust, Inc. 5.7%
Simon Property Group, Inc. 5.4%
Digital Realty Trust, Inc. 4.5%
Extra Space Storage, Inc. 4.4%
SL Green Realty Corp. 3.1%
American Homes 4 Rent, Class A 3.1%
C000047744 [Member]  
Shareholder Report [Line Items]  
Fund Name American Asset Allocation Trust
Class Name Series I
Trading Symbol JAHZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Asset Allocation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Asset Allocation Trust
(Series I/JAHZX)		 $32 0.62%
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.62%
Net Assets $ 1,191,879,012
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,191,879,012%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Common stocks 68.1%
Corporate bonds 10.7%
Collateralized mortgage obligations 9.1%
U.S. Government and agency obligations 6.3%
Asset backed securities 2.4%
Foreign government obligations 0.2%
Municipal bonds 0.1%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000047745 [Member]  
Shareholder Report [Line Items]  
Fund Name American Asset Allocation Trust
Class Name Series II
Trading Symbol JAIFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Asset Allocation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Asset Allocation Trust
(Series II/JAIFX)		 $37 0.71%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.71%
Net Assets $ 1,191,879,012
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,191,879,012%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Common stocks 68.1%
Corporate bonds 10.7%
Collateralized mortgage obligations 9.1%
U.S. Government and agency obligations 6.3%
Asset backed securities 2.4%
Foreign government obligations 0.2%
Municipal bonds 0.1%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000047746 [Member]  
Shareholder Report [Line Items]  
Fund Name American Asset Allocation Trust
Class Name Series III
Trading Symbol JAIDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the American Asset Allocation Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
American Asset Allocation Trust
(Series III/JAIDX)		 $14 0.27%
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.27%
Net Assets $ 1,191,879,012
Holdings Count | Holding 1
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $1,191,879,012%
Total number of portfolio holdings $1%
Portfolio turnover rate $5%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Common stocks 68.1%
Corporate bonds 10.7%
Collateralized mortgage obligations 9.1%
U.S. Government and agency obligations 6.3%
Asset backed securities 2.4%
Foreign government obligations 0.2%
Municipal bonds 0.1%
Short-term investments and other 3.1%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000063027 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Value Trust
Class Name Series I
Trading Symbol JAFPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Value Trust
(Series I/JAFPX)		 $46 0.89%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.89%
Net Assets $ 472,814,650
Holdings Count | Holding 344
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $472,814,650%
Total number of portfolio holdings $344%
Portfolio turnover rate $40%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
Portfolio Composition
Common stocks 63.7%
U.S. Government 10.9%
Corporate bonds 10.7%
Term loans 10.0%
Preferred securities 0.1%
Asset backed securities 0.1%
Short-term investments and other 4.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
C000063028 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Value Trust
Class Name Series II
Trading Symbol JAFQX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Value Trust
(Series II/JAFQX)		 $56 1.09%
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.09%
Net Assets $ 472,814,650
Holdings Count | Holding 344
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $472,814,650%
Total number of portfolio holdings $344%
Portfolio turnover rate $40%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
Portfolio Composition
Common stocks 63.7%
U.S. Government 10.9%
Corporate bonds 10.7%
Term loans 10.0%
Preferred securities 0.1%
Asset backed securities 0.1%
Short-term investments and other 4.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
C000063026 [Member]  
Shareholder Report [Line Items]  
Fund Name Capital Appreciation Value Trust
Class Name Series NAV
Trading Symbol JAFRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Capital Appreciation Value Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Capital Appreciation Value Trust
(Series NAV/JAFRX)		 $43 0.84%
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.84%
Net Assets $ 472,814,650
Holdings Count | Holding 344
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $472,814,650%
Total number of portfolio holdings $344%
Portfolio turnover rate $40%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
Portfolio Composition
Common stocks 63.7%
U.S. Government 10.9%
Corporate bonds 10.7%
Term loans 10.0%
Preferred securities 0.1%
Asset backed securities 0.1%
Short-term investments and other 4.5%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Largest Holdings [Text Block]
Top Ten Holdings
Microsoft Corp. 5.5%
U.S. Treasury 3.7%
U.S. Treasury 3.5%
Amazon.com, Inc. 2.7%
Alphabet, Inc., Class A 2.7%
UnitedHealth Group, Inc. 2.6%
NVIDIA Corp. 2.6%
Danaher Corp. 2.1%
Intuit, Inc. 2.0%
U.S. Treasury 2.0%
C000090649 [Member]  
Shareholder Report [Line Items]  
Fund Name Ultra Short Term Bond Trust
Class Name Series I
Trading Symbol JAGJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Ultra Short Term Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Ultra Short Term Bond Trust
(Series I/JAGJX)		 $31 0.61%
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.61%
Net Assets $ 233,781,882
Holdings Count | Holding 149
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $233,781,882%
Total number of portfolio holdings $149%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 54.7%
Asset backed securities 21.7%
U.S. Government Agency 0.5%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 22.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000090650 [Member]  
Shareholder Report [Line Items]  
Fund Name Ultra Short Term Bond Trust
Class Name Series II
Trading Symbol JAGEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Ultra Short Term Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Ultra Short Term Bond Trust
(Series II/JAGEX)		 $41 0.81%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.81%
Net Assets $ 233,781,882
Holdings Count | Holding 149
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $233,781,882%
Total number of portfolio holdings $149%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 54.7%
Asset backed securities 21.7%
U.S. Government Agency 0.5%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 22.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000090651 [Member]  
Shareholder Report [Line Items]  
Fund Name Ultra Short Term Bond Trust
Class Name Series NAV
Trading Symbol JAGFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Ultra Short Term Bond Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Ultra Short Term Bond Trust
(Series NAV/JAGFX)		 $28 0.56%
Expenses Paid, Amount $ 28
Expense Ratio, Percent 0.56%
Net Assets $ 233,781,882
Holdings Count | Holding 149
Investment Company Portfolio Turnover 59.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $233,781,882%
Total number of portfolio holdings $149%
Portfolio turnover rate $59%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
Corporate bonds 54.7%
Asset backed securities 21.7%
U.S. Government Agency 0.5%
Collateralized mortgage obligations – U.S. Government Agency 0.2%
Short-term investments and other 22.9%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000073238 [Member]  
Shareholder Report [Line Items]  
Fund Name Short Term Government Income Trust
Class Name Series I
Trading Symbol JAJPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Short Term Government Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Short Term Government Income Trust
(Series I/JAJPX)		 $36 0.72%
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.72%
Net Assets $ 158,511,893
Holdings Count | Holding 103
Investment Company Portfolio Turnover 50.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $158,511,893%
Total number of portfolio holdings $103%
Portfolio turnover rate $50%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 49.9%
U.S. Government Agency 45.2%
Municipal bonds 3.0%
Collateralized mortgage obligations – U.S. Government Agency 0.5%
Short-term investments and other 1.4%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000073239 [Member]  
Shareholder Report [Line Items]  
Fund Name Short Term Government Income Trust
Class Name Series II
Trading Symbol JAFWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Short Term Government Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Short Term Government Income Trust
(Series II/JAFWX)		 $46 0.92%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.92%
Net Assets $ 158,511,893
Holdings Count | Holding 103
Investment Company Portfolio Turnover 50.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $158,511,893%
Total number of portfolio holdings $103%
Portfolio turnover rate $50%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 49.9%
U.S. Government Agency 45.2%
Municipal bonds 3.0%
Collateralized mortgage obligations – U.S. Government Agency 0.5%
Short-term investments and other 1.4%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block]
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000073237 [Member]  
Shareholder Report [Line Items]  
Fund Name Short Term Government Income Trust
Class Name Series NAV
Trading Symbol JAFYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Short Term Government Income Trust (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Short Term Government Income Trust
(Series NAV/JAFYX)		 $33 0.67%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.67%
Net Assets $ 158,511,893
Holdings Count | Holding 103
Investment Company Portfolio Turnover 50.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $158,511,893%
Total number of portfolio holdings $103%
Portfolio turnover rate $50%
Holdings [Text Block]
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing percentage of the total net assets of the fund.
Portfolio Composition
U.S. Government 49.9%
U.S. Government Agency 45.2%
Municipal bonds 3.0%
Collateralized mortgage obligations – U.S. Government Agency 0.5%
Short-term investments and other 1.4%
Quality Composition
Graphical Representation - Allocation 1 Chart
Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
Credit Quality Explanation [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc. “Not rated” securities are those with no ratings available from these agencies. All ratings are as of 6-30-24 and do not reflect subsequent downgrades or upgrades, if any.
Credit Ratings Selection [Text Block] Ratings are from Moody’s Investors Service, Inc. If not available, we have used S&P Global Ratings. In the absence of ratings from these agencies, we have used Fitch Ratings, Inc.
C000099620 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Balanced Portfolio
Class Name Series I
Trading Symbol JHBPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Balanced Portfolio
(Series I/JHBPX)		 $6 0.12%
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12%
Net Assets $ 968,473,102
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $968,473,102%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 50.1%
Fixed income 49.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099621 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Balanced Portfolio
Class Name Series II
Trading Symbol JAILX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Balanced Portfolio
(Series II/JAILX)		 $16 0.32%
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.32%
Net Assets $ 968,473,102
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $968,473,102%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 50.1%
Fixed income 49.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099622 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Balanced Portfolio
Class Name Series NAV
Trading Symbol JAINX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Balanced Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Balanced Portfolio
(Series NAV/JAINX)		 $4 0.07%
Expenses Paid, Amount $ 4
Expense Ratio, Percent 0.07%
Net Assets $ 968,473,102
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $968,473,102%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Equity 50.1%
Fixed income 49.9%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099629 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Moderate Portfolio
Class Name Series I
Trading Symbol JHMPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Moderate Portfolio
(Series I/JHMPX)		 $7 0.13%
Expenses Paid, Amount $ 7
Expense Ratio, Percent 0.13%
Net Assets $ 279,669,848
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,669,848%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 60.0%
Equity 40.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099630 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Moderate Portfolio
Class Name Series II
Trading Symbol JAIPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Moderate Portfolio
(Series II/JAIPX)		 $17 0.33%
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.33%
Net Assets $ 279,669,848
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,669,848%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 60.0%
Equity 40.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.
C000099631 [Member]  
Shareholder Report [Line Items]  
Fund Name Lifestyle Moderate Portfolio
Class Name Series NAV
Trading Symbol JAIOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Lifestyle Moderate Portfolio (the fund) for the period of January 1, 2024 to June 30, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at dfinview.com/johnhancock?site=funds. You can also request this information by contacting us at 800-344-1029 for John Hancock Variable Annuities and 800-732-5543 for John Hancock Variable Life Insurance.
Additional Information Phone Number 800-344-1029800-732-5543
Additional Information Website dfinview.com/johnhancock?site=funds
Expenses [Text Block]
What were the fund costs during the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment
Lifestyle Moderate Portfolio
(Series NAV/JAIOX)		 $4 0.08%
Expenses Paid, Amount $ 4
Expense Ratio, Percent 0.08%
Net Assets $ 279,669,848
Holdings Count | Holding 3
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
Fund net assets $279,669,848%
Total number of portfolio holdings $3%
Portfolio turnover rate $1%
Holdings [Text Block]
Graphical Representation of Holdings
The table below shows the investment makeup of the fund, representing percentage of the total net assets of the fund.
Asset Allocation
Affiliated investment companies 100.0%
Fixed income 60.0%
Equity 40.0%
Holdings may not have been held by the fund for the entire period and are subject to change without notice. Portfolio composition is subject to review in accordance with the fund’s investment strategy and may vary in the future. Current and future portfolio holdings are subject to risk and may change at any time.