Shareholder Report |
12 Months Ended | ||||||||||||||||||||
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May 31, 2025
USD ($)
Holding
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Shareholder Report [Line Items] | |||||||||||||||||||||
Document Type | N-CSR | ||||||||||||||||||||
Amendment Flag | false | ||||||||||||||||||||
Registrant Name | JOHN HANCOCK SOVEREIGN BOND FUND | ||||||||||||||||||||
Entity Central Index Key | 0000045288 | ||||||||||||||||||||
Entity Investment Company Type | N-1A | ||||||||||||||||||||
Document Period End Date | May 31, 2025 | ||||||||||||||||||||
C000001854 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class A | ||||||||||||||||||||
Trading Symbol | JHNBX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
||||||||||||||||||||
Expenses Paid, Amount | $ 78 | ||||||||||||||||||||
Expense Ratio, Percent | 0.76% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class A/JHNBX) returned 5.32% (excluding sales charges) for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
|
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Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $10,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $10,000
![]() |
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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 5-31-25 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. | ||||||||||||||||||||
C000001856 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class C | ||||||||||||||||||||
Trading Symbol | JHCBX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
||||||||||||||||||||
Expenses Paid, Amount | $ 149 | ||||||||||||||||||||
Expense Ratio, Percent | 1.46% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class C/JHCBX) returned 4.59% (excluding sales charges) for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
|
||||||||||||||||||||
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $10,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $10,000
![]() |
||||||||||||||||||||
Average Annual Return [Table Text Block] |
|
||||||||||||||||||||
No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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 5-31-25 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. | ||||||||||||||||||||
C000001857 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class I | ||||||||||||||||||||
Trading Symbol | JHBIX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
||||||||||||||||||||
Expenses Paid, Amount | $ 47 | ||||||||||||||||||||
Expense Ratio, Percent | 0.46% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class I/JHBIX) returned 5.64% for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
|
||||||||||||||||||||
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $250,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $250,000
![]() |
||||||||||||||||||||
Average Annual Return [Table Text Block] |
|
||||||||||||||||||||
No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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 5-31-25 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. | ||||||||||||||||||||
C000153977 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class NAV | ||||||||||||||||||||
No Trading Symbol Flag | true | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/underlying-funds. You can also request this information by contacting us at 800-344-1029. | ||||||||||||||||||||
Additional Information Phone Number | 800-344-1029 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/underlying-funds | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
||||||||||||||||||||
Expenses Paid, Amount | $ 36 | ||||||||||||||||||||
Expense Ratio, Percent | 0.35% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class NAV) returned 5.76% for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
|
||||||||||||||||||||
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $10,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $10,000
![]() |
||||||||||||||||||||
Average Annual Return [Table Text Block] |
|
||||||||||||||||||||
No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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 5-31-25 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. | ||||||||||||||||||||
C000113488 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class R2 | ||||||||||||||||||||
Trading Symbol | JHRBX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
||||||||||||||||||||
Expenses Paid, Amount | $ 87 | ||||||||||||||||||||
Expense Ratio, Percent | 0.85% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class R2/JHRBX) returned 5.15% for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
|
||||||||||||||||||||
Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $10,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $10,000
![]() |
||||||||||||||||||||
Average Annual Return [Table Text Block] |
|
||||||||||||||||||||
No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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 5-31-25 and do not reflect subsequent downgrades or upgrades, if any.
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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. | ||||||||||||||||||||
C000153978 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class R4 | ||||||||||||||||||||
Trading Symbol | JBFRX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 62 | ||||||||||||||||||||
Expense Ratio, Percent | 0.60% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class R4/JBFRX) returned 5.49% for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
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Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $10,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $10,000
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
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Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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.
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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 5-31-25 and do not reflect subsequent downgrades or upgrades, if any.
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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. | ||||||||||||||||||||
C000106442 [Member] | |||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||
Fund Name | John Hancock Bond Fund | ||||||||||||||||||||
Class Name | Class R6 | ||||||||||||||||||||
Trading Symbol | JHBSX | ||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the John Hancock Bond Fund (the fund) for the period of June 1, 2024 to May 31, 2025. | ||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the fund at jhinvestments.com/documents. You can also request this information by contacting us at 800-225-5291. | ||||||||||||||||||||
Additional Information Phone Number | 800-225-5291 | ||||||||||||||||||||
Additional Information Website | jhinvestments.com/documents | ||||||||||||||||||||
Expenses [Text Block] |
What were the fund costs during the last year ?
(Based on a hypothetical $10,000 investment)
|
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Expenses Paid, Amount | $ 36 | ||||||||||||||||||||
Expense Ratio, Percent | 0.35% | ||||||||||||||||||||
Factors Affecting Performance [Text Block] |
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
Bond Fund (Class R6/JHBSX) returned 5.67% for the year ended May 31, 2025. The U.S. bond market produced broad-based gains in the annual period, with positive price performance augmenting the contribution from income. Investors were cheered by the backdrop of falling inflation, moderate economic growth, and interest rate cuts by the U.S. Federal Reserve. Credit-oriented market segments generally outperformed, reflecting a hearty appetite for risk among market participants.
TOP PERFORMANCE CONTRIBUTORS
Agency mortgage-backed securities | The fund’s allocation to this area made the largest contribution to absolute performance due to the combination of positive total returns and a sizable portfolio weighting.
Investment-grade corporates | This segment of the fund also made a meaningful contribution, led by Charter Communications Operating LLC, Enbridge, Inc., and Paramount Global.
Other contributing sectors | An allocation to U.S. Treasuries and government debt also contributed, as did holdings in high-yield bonds, asset-backed securities, commercial mortgage-backed securities, and emerging-market corporate issues.
TOP PERFORMANCE DETRACTORS
A small number of individual securities | Although many of the fund’s positions registered positive absolute returns, certain holdings, including Occidental Petroleum Corp., finished with losses.
Saks Global Enterprises | A position in the bonds of the luxury retailer lost ground, as did holdings in specific longer-dated U.S. Treasury issues and U.S. Treasury futures.
The views expressed in this report are exclusively those of the portfolio management team at Manulife Investment Management (US) LLC, and are subject to change. They are not meant as investment advice.
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Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||
Line Graph [Table Text Block] |
Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the fund (or for the life of the fund, if shorter). It assumes a $1,000,000 initial investment in the fund and in an appropriate, broad-based securities market index for the same period.
GROWTH OF $1,000,000
![]() |
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Average Annual Return [Table Text Block] |
|
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | ||||||||||||||||||||
Updated Performance Information Location [Text Block] | Due to market volatility and other factors, the fund’s current performance may be higher or lower than the performance shown and can be found at jhinvestments.com/investments or by calling 800-225-5291. | ||||||||||||||||||||
Net Assets | $ 26,129,016,250 | ||||||||||||||||||||
Holdings Count | Holding | 1,107 | ||||||||||||||||||||
Advisory Fees Paid, Amount | $ 78,343,545 | ||||||||||||||||||||
Investment Company Portfolio Turnover | 100.00% | ||||||||||||||||||||
Additional Fund Statistics [Text Block] |
Fund Statistics
|
||||||||||||||||||||
Holdings [Text Block] |
Graphical Representation of Holdings
The tables below show the investment makeup of the fund, representing a percentage of the total net assets of the fund.
Portfolio Composition
Quality Composition
![]() 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 5-31-25 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.
|
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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 5-31-25 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. |