Pioneer Bond Fund Class Y (PICYX) N-CSR 5 Sep 24 Certified annual shareholder report (management investment company) Financial data

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
	Jun. 30, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	PIONEER BOND FUND /DE/
Entity Central Index Key	0000276776
Document Period End Date	Jun. 30, 2024

Shareholder Report

Shareholder Report	12 Months Ended
	Jun. 30, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	PIONEER BOND FUND /DE/
Entity Central Index Key	0000276776
Document Period End Date	Jun. 30, 2024
C000011026 [Member]
Shareholder Report [Line Items]
Fund Name	Pioneer Bond Fund
Class Name	Class A
Trading Symbol	PIOBX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Pioneer Bond Fund (“Fund”) for
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-225-6292
Additional Information Website	https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.81 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.81%
Factors Affecting Performance [Text Block]	How did the Fund perform last year and what affected the Fund performance? For the fiscal year ended June 30, 2024, the Fund’s Class A shares at NAV returned 3.81%. For the same period, the Bloomberg U.S. Aggregate Bond Index, (the "index") returned 2.63%. The Fund’s benchmark relative performance benefited from allocations to non-agency mortgage-backed securities and to the financial sector, and a significant Fund underweight to U.S. Treasuries relative to the Index. Security selection in the financials and industrials sectors and in agency mortgage-backed securities contributed to the Fund’s benchmark relative performance. The Fund's average duration position of 6.88 years was long relative to the Index duration of 0.72 years, which detracted from the Fund's benchmark relative performance. As yields moved higher during the first four months of the period and again in the first quarter of 2024. The Fund’s out of Index exposures to convertible securities and Treasury Inflation Protected Securities modestly detracted from the Fund's benchmark relative performance.
Performance Past Does Not Indicate Future [Text]	The performance data quoted represents past performance, which is no guarantee of future results.
Line Graph [Table Text Block]	Fund Performance The line graph below shows the change in value of a $10,000 investment made in Class A shares of the Fund at public offering price during the periods shown, compared to that of the Bloomberg U.S. Aggregate Bond Index. GROWTH OF $10,000
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURN 1 Year 5 Years 10 Years Class A (with sales charge) (0.90 ) % (0.58 ) % 1.16 % Class A (without sales charge) 3.81 ) % 0.34 ) % 1.63 % Bloomberg U.S. Aggregate Bond Index 2.63 ) % (0.23 ) % 1.35 %
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]	Call 1-800-225-6292 or visit https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Net Assets	$ 4,555,480,846
Holdings Count | Holding	1,523	[1]
Advisory Fees Paid, Amount	$ 12,890,557
Investment Company Portfolio Turnover	57%
Additional Fund Statistics [Text Block]	KEY FUND STATISTICS Fund net assets $ % Total number of portfolio holdings $ % ^^ Total advisory fee paid $ % Portfolio turnover rate $ % ^^ Short-term investments and derivative contracts other than purchased options are not included.
Holdings [Text Block]	PORTFOLIO DIVERSIFICATION * U.S. Government and Agency Obligations 43.8 % Corporate Bonds 33.8 % Asset Backed Securities 8.1 % Collateralized Mortgage Obligations 6.3 % Commercial Mortgage-Backed Securities 4.0 % Insurance-Linked Securities 3.3 % Foreign Government Bonds 0.5 % Senior Secured Floating Rate Loan Interests 0.2 % ​ * As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.
Material Fund Change [Text Block]	Material Fund Changes Amundi Asset Management US, Inc. (the “Adviser”), the Fund’s investment adviser, is currently an indirect, wholly-owned subsidiary of Amundi. The closing of the Transaction would cause the Fund’s current investment advisory agreement with the Adviser to terminate. This is a summary of certain planned changes to the Fund. https://www.amundi.com/usinvestors/Products/Mutual-Funds
Updated Prospectus Phone Number	1-800-225-6292
Updated Prospectus Web Address	https://www.amundi.com/usinvestors/Products/Mutual-Funds
Accountant Change Disagreements [Text Block]	Changes in and Disagreements with Accountants On March 25, 2024, Ernst & Young LLP (the “Prior Auditor”) resigned as the independent registered public accounting firm of the Fund. There were no disagreements with the Prior Auditor during the two most recent fiscal years and the subsequent interim period through March 25, 2024. On March 25, 2024, the Audit Committee of the Board approved, and on March 25, 2024, the Board approved, Deloitte & Touche LLP as the independent registered accounting firm of the Fund for fiscal periods ending after March 25, 2024.
C000011028 [Member]
Shareholder Report [Line Items]
Fund Name	Pioneer Bond Fund
Class Name	Class C
Trading Symbol	PCYBX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Pioneer Bond Fund (“Fund”) for
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-225-6292
Additional Information Website	https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.46 %
Expenses Paid, Amount	$ 148
Expense Ratio, Percent	1.46%
Factors Affecting Performance [Text Block]	How did the Fund perform last year and what affected the Fund performance? For the fiscal year ended June 30, 2024, the Fund’s Class C shares at NAV returned 3.13%. For the same period, the Bloomberg U.S. Aggregate Bond Index, (the "index") returned 2.63%. The Fund’s benchmark relative performance benefited from allocations to non-agency mortgage-backed securities and to the financial sector, and a significant Fund underweight to U.S. Treasuries relative to the Index. Security selection in the financials and industrials sectors and in agency mortgage-backed securities contributed to the Fund’s benchmark relative performance. The Fund's average duration position of 6.88 years was long relative to the Index duration of 0.72 years, which detracted from the Fund's benchmark relative performance. As yields moved higher during the first four months of the period and again in the first quarter of 2024. The Fund’s out of Index exposures to convertible securities and Treasury Inflation Protected Securities modestly detracted from the Fund's benchmark relative performance.
Performance Past Does Not Indicate Future [Text]	The performance data quoted represents past performance, which is no guarantee of future results.
Line Graph [Table Text Block]	Fund Performance The line graph below shows the change in value of a $10,000 investment made in Class C shares of the Fund during the periods shown, compared to that of the Bloomberg U.S. Aggregate Bond Index. GROWTH OF $10,000
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURN 1 Year 5 Years 10 Years Class C (with contingent deferred sales charge) 2.13 % (0.32 ) % 0.93 % Class C (without contingent deferred sales charge) 3.13 % (0.32 ) % 0.93 % Bloomberg U.S. Aggregate Bond Index 2.63 % (0.23 ) % 1.35 %
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]	Call 1-800-225-6292 or visit https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Net Assets	$ 4,555,480,846
Holdings Count | Holding	1,523	[2]
Advisory Fees Paid, Amount	$ 12,890,557
Investment Company Portfolio Turnover	57%
Additional Fund Statistics [Text Block]	KEY FUND STATISTICS Fund net assets $ % Total number of portfolio holdings $ % ^^ Total advisory fee paid $ % Portfolio turnover rate $ % ^^ Short-term investments and derivative contracts other than purchased options are not included.
Holdings [Text Block]	PORTFOLIO DIVERSIFICATION * U.S. Government and Agency Obligations 43.8 % Corporate Bonds 33.8 % Asset Backed Securities 8.1 % Collateralized Mortgage Obligations 6.3 % Commercial Mortgage-Backed Securities 4.0 % Insurance-Linked Securities 3.3 % Foreign Government Bonds 0.5 % Senior Secured Floating Rate Loan Interests 0.2 % ​ * As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.
Material Fund Change [Text Block]	Material Fund Changes Amundi Asset Management US, Inc. (the “Adviser”), the Fund’s investment adviser, is currently an indirect, wholly-owned subsidiary of Amundi. The closing of the Transaction would cause the Fund’s current investment advisory agreement with the Adviser to terminate. This is a summary of certain planned changes to the Fund. https://www.amundi.com/usinvestors/Products/Mutual-Funds
Updated Prospectus Phone Number	1-800-225-6292
Updated Prospectus Web Address	https://www.amundi.com/usinvestors/Products/Mutual-Funds
Accountant Change Disagreements [Text Block]	Changes in and Disagreements with Accountants On March 25, 2024, Ernst & Young LLP (the “Prior Auditor”) resigned as the independent registered public accounting firm of the Fund. There were no disagreements with the Prior Auditor during the two most recent fiscal years and the subsequent interim period through March 25, 2024. On March 25, 2024, the Audit Committee of the Board approved, and on March 25, 2024, the Board approved, Deloitte & Touche LLP as the independent registered accounting firm of the Fund for fiscal periods ending after March 25, 2024.
C000123839 [Member]
Shareholder Report [Line Items]
Fund Name	Pioneer Bond Fund
Class Name	Class K
Trading Symbol	PBFKX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Pioneer Bond Fund (“Fund”) for
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-225-6292
Additional Information Website	https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class K $ 0.36 %
Expenses Paid, Amount	$ 37
Expense Ratio, Percent	0.36%
Factors Affecting Performance [Text Block]	How did the Fund perform last year and what affected the Fund performance? For the fiscal year ended June 30, 2024, the Fund’s Class K shares at NAV returned 4.28%. For the same period, the Bloomberg U.S. Aggregate Bond Index, (the "index") returned 2.63%. The Fund’s benchmark relative performance benefited from allocations to non-agency mortgage-backed securities and to the financial sector, and a significant Fund underweight to U.S. Treasuries relative to the Index. Security selection in the financials and industrials sectors and in agency mortgage-backed securities contributed to the Fund’s benchmark relative performance. The Fund's average duration position of 6.88 years was long relative to the Index duration of 0.72 years, which detracted from the Fund's benchmark relative performance. As yields moved higher during the first four months of the period and again in the first quarter of 2024. The Fund’s out of Index exposures to convertible securities and Treasury Inflation Protected Securities modestly detracted from the Fund's benchmark relative performance.
Performance Past Does Not Indicate Future [Text]	The performance data quoted represents past performance, which is no guarantee of future results.
Line Graph [Table Text Block]	Fund Performance The line graph below shows the change in value of a $5 Million investment made in Class K shares of the Fund during the periods shown, compared to that of the Bloomberg U.S. Aggregate Bond Index. GROWTH OF $5 million
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURN 1 Year 5 Years 10 Years Class K 4.28 % 0.80 ) % 2.07 % Bloomberg U.S. Aggregate Bond Index 2.63 % (0.23 ) % 1.35 %
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]	Call 1-800-225-6292 or visit https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Net Assets	$ 4,555,480,846
Holdings Count | Holding	1,523	[3]
Advisory Fees Paid, Amount	$ 12,890,557
Investment Company Portfolio Turnover	57%
Additional Fund Statistics [Text Block]	KEY FUND STATISTICS Fund net assets $ % Total number of portfolio holdings $ % ^^ Total advisory fee paid $ % Portfolio turnover rate $ % ^^ Short-term investments and derivative contracts other than purchased options are not included.
Holdings [Text Block]	PORTFOLIO DIVERSIFICATION * U.S. Government and Agency Obligations 43.8 % Corporate Bonds 33.8 % Asset Backed Securities 8.1 % Collateralized Mortgage Obligations 6.3 % Commercial Mortgage-Backed Securities 4.0 % Insurance-Linked Securities 3.3 % Foreign Government Bonds 0.5 % Senior Secured Floating Rate Loan Interests 0.2 % ​ * As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.
Material Fund Change [Text Block]	Material Fund Changes Amundi Asset Management US, Inc. (the “Adviser”), the Fund’s investment adviser, is currently an indirect, wholly-owned subsidiary of Amundi. The closing of the Transaction would cause the Fund’s current investment advisory agreement with the Adviser to terminate. This is a summary of certain planned changes to the Fund. https://www.amundi.com/usinvestors/Products/Mutual-Funds
Updated Prospectus Phone Number	1-800-225-6292
Updated Prospectus Web Address	https://www.amundi.com/usinvestors/Products/Mutual-Funds
Accountant Change Disagreements [Text Block]	Changes in and Disagreements with Accountants On March 25, 2024, Ernst & Young LLP (the “Prior Auditor”) resigned as the independent registered public accounting firm of the Fund. There were no disagreements with the Prior Auditor during the two most recent fiscal years and the subsequent interim period through March 25, 2024. On March 25, 2024, the Audit Committee of the Board approved, and on March 25, 2024, the Board approved, Deloitte & Touche LLP as the independent registered accounting firm of the Fund for fiscal periods ending after March 25, 2024.
C000011031 [Member]
Shareholder Report [Line Items]
Fund Name	Pioneer Bond Fund
Class Name	Class R
Trading Symbol	PBFRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Pioneer Bond Fund (“Fund”) for
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-225-6292
Additional Information Website	https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R $ 1.11 %
Expenses Paid, Amount	$ 113
Expense Ratio, Percent	1.11%
Factors Affecting Performance [Text Block]	How did the Fund perform last year and what affected the Fund performance? For the fiscal year ended June 30, 2024, the Fund’s Class R shares at NAV returned 3.49%. For the same period, the Bloomberg U.S. Aggregate Bond Index, (the "index") returned 2.63%. The Fund’s benchmark relative performance benefited from allocations to non-agency mortgage-backed securities and to the financial sector, and a significant Fund underweight to U.S. Treasuries relative to the Index. Security selection in the financials and industrials sectors and in agency mortgage-backed securities contributed to the Fund’s benchmark relative performance. The Fund's average duration position of 6.88 years was long relative to the Index duration of 0.72 years, which detracted from the Fund's benchmark relative performance. As yields moved higher during the first four months of the period and again in the first quarter of 2024. The Fund’s out of Index exposures to convertible securities and Treasury Inflation Protected Securities modestly detracted from the Fund's benchmark relative performance.
Performance Past Does Not Indicate Future [Text]	The performance data quoted represents past performance, which is no guarantee of future results.
Line Graph [Table Text Block]	Fund Performance The line graph below shows the change in value of a $10,000 investment made in Class R shares of the Fund during the periods shown, compared to that of the Bloomberg U.S. Aggregate Bond Index. GROWTH OF $10,000
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURN 1 Year 5 Years 10 Years Class R 3.49 % 0.05 ) % 1.36 % Bloomberg U.S. Aggregate Bond Index 2.63 % (0.23 ) % 1.35 %
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]	Call 1-800-225-6292 or visit https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Net Assets	$ 4,555,480,846
Holdings Count | Holding	1,523	[4]
Advisory Fees Paid, Amount	$ 12,890,557
Investment Company Portfolio Turnover	57%
Additional Fund Statistics [Text Block]	KEY FUND STATISTICS Fund net assets $ % Total number of portfolio holdings $ % ^^ Total advisory fee paid $ % Portfolio turnover rate $ % ^^ Short-term investments and derivative contracts other than purchased options are not included.
Holdings [Text Block]	PORTFOLIO DIVERSIFICATION * U.S. Government and Agency Obligations 43.8 % Corporate Bonds 33.8 % Asset Backed Securities 8.1 % Collateralized Mortgage Obligations 6.3 % Commercial Mortgage-Backed Securities 4.0 % Insurance-Linked Securities 3.3 % Foreign Government Bonds 0.5 % Senior Secured Floating Rate Loan Interests 0.2 % ​ * As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.
Material Fund Change [Text Block]	Material Fund Changes Amundi Asset Management US, Inc. (the “Adviser”), the Fund’s investment adviser, is currently an indirect, wholly-owned subsidiary of Amundi. The closing of the Transaction would cause the Fund’s current investment advisory agreement with the Adviser to terminate. This is a summary of certain planned changes to the Fund. https://www.amundi.com/usinvestors/Products/Mutual-Funds
Updated Prospectus Phone Number	1-800-225-6292
Updated Prospectus Web Address	https://www.amundi.com/usinvestors/Products/Mutual-Funds
Accountant Change Disagreements [Text Block]	Changes in and Disagreements with Accountants On March 25, 2024, Ernst & Young LLP (the “Prior Auditor”) resigned as the independent registered public accounting firm of the Fund. There were no disagreements with the Prior Auditor during the two most recent fiscal years and the subsequent interim period through March 25, 2024. On March 25, 2024, the Audit Committee of the Board approved, and on March 25, 2024, the Board approved, Deloitte & Touche LLP as the independent registered accounting firm of the Fund for fiscal periods ending after March 25, 2024.
C000011029 [Member]
Shareholder Report [Line Items]
Fund Name	Pioneer Bond Fund
Class Name	Class Y
Trading Symbol	PICYX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Pioneer Bond Fund (“Fund”) for
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-225-6292
Additional Information Website	https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Y $ 0.47 %
Expenses Paid, Amount	$ 48
Expense Ratio, Percent	0.47%
Factors Affecting Performance [Text Block]	How did the Fund perform last year and what affected the Fund performance? For the fiscal year ended June 30, 2024, the Fund’s Class Y shares at NAV returned 4.17%. For the same period, the Bloomberg U.S. Aggregate Bond Index, (the "index") returned 2.63%. The Fund’s benchmark relative performance benefited from allocations to non-agency mortgage-backed securities and to the financial sector, and a significant Fund underweight to U.S. Treasuries relative to the Index. Security selection in the financials and industrials sectors and in agency mortgage-backed securities contributed to the Fund’s benchmark relative performance. The Fund's average duration position of 6.88 years was long relative to the Index duration of 0.72 years, which detracted from the Fund's benchmark relative performance. As yields moved higher during the first four months of the period and again in the first quarter of 2024. The Fund’s out of Index exposures to convertible securities and Treasury Inflation Protected Securities modestly detracted from the Fund's benchmark relative performance.
Performance Past Does Not Indicate Future [Text]	The performance data quoted represents past performance, which is no guarantee of future results.
Line Graph [Table Text Block]	Fund Performance The line graph below shows the change in value of a $5 Million investment made in Class Y shares of the Fund during the periods shown, compared to that of the Bloomberg U.S. Aggregate Bond Index. GROWTH OF $5 million
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURN 1 Year 5 Years 10 Years Class Y 4.17 % 0.69 ) % 1.95 % Bloomberg U.S. Aggregate Bond Index 2.63 % (0.23 ) % 1.35 %
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]	Call 1-800-225-6292 or visit https://www.amundi.com/usinvestors/Resources/Shareholder-Reports
Net Assets	$ 4,555,480,846
Holdings Count | Holding	1,523	[5]
Advisory Fees Paid, Amount	$ 12,890,557
Investment Company Portfolio Turnover	57%
Additional Fund Statistics [Text Block]	KEY FUND STATISTICS Fund net assets $ % Total number of portfolio holdings $ % ^^ Total advisory fee paid $ % Portfolio turnover rate $ % ^^ Short-term investments and derivative contracts other than purchased options are not included.
Holdings [Text Block]	PORTFOLIO DIVERSIFICATION * U.S. Government and Agency Obligations 43.8 % Corporate Bonds 33.8 % Asset Backed Securities 8.1 % Collateralized Mortgage Obligations 6.3 % Commercial Mortgage-Backed Securities 4.0 % Insurance-Linked Securities 3.3 % Foreign Government Bonds 0.5 % Senior Secured Floating Rate Loan Interests 0.2 % ​ * As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.
Material Fund Change [Text Block]	Material Fund Changes Amundi Asset Management US, Inc. (the “Adviser”), the Fund’s investment adviser, is currently an indirect, wholly-owned subsidiary of Amundi. The closing of the Transaction would cause the Fund’s current investment advisory agreement with the Adviser to terminate. This is a summary of certain planned changes to the Fund. https://www.amundi.com/usinvestors/Products/Mutual-Funds
Updated Prospectus Phone Number	1-800-225-6292
Updated Prospectus Web Address	https://www.amundi.com/usinvestors/Products/Mutual-Funds
Accountant Change Disagreements [Text Block]	Changes in and Disagreements with Accountants On March 25, 2024, Ernst & Young LLP (the “Prior Auditor”) resigned as the independent registered public accounting firm of the Fund. There were no disagreements with the Prior Auditor during the two most recent fiscal years and the subsequent interim period through March 25, 2024. On March 25, 2024, the Audit Committee of the Board approved, and on March 25, 2024, the Board approved, Deloitte & Touche LLP as the independent registered accounting firm of the Fund for fiscal periods ending after March 25, 2024.
[1]Short-term investments and derivative contracts other than purchased options are not included.[2]Short-term investments and derivative contracts other than purchased options are not included.[3]Short-term investments and derivative contracts other than purchased options are not included.[4]Short-term investments and derivative contracts other than purchased options are not included.[5]Short-term investments and derivative contracts other than purchased options are not included.

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)	12 Months Ended	60 Months Ended	120 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
C000011026 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class A (with sales charge)
Account Value	$ 11,221	$ 11,221	$ 11,221	$ 10,810	$ 10,996	$ 12,308	$ 11,583	$ 11,032	$ 10,316	$ 10,301	$ 10,051	$ 9,672	$ 9,550
Average Annual Return, Percent	(0.90%)	(0.58%)	1.16%
C000011026 [Member] | Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class A (without sales charge)
Average Annual Return, Percent	3.81%	0.34%	1.63%
C000011028 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class C (with contingent deferred sales charge)
Account Value	$ 10,965	$ 10,965	$ 10,965	10,633	10,891	12,273	11,620	11,145	10,493	10,547	10,379	10,049	10,000
Average Annual Return, Percent	2.13%	(0.32%)	0.93%
C000011028 [Member] | Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class C (without contingent deferred sales charge)
Average Annual Return, Percent	3.13%	(0.32%)	0.93%
C000123839 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class K
Account Value	$ 6,138,657	$ 6,138,657	$ 6,138,657	5,886,412	5,966,489	6,638,674	6,224,128	5,898,596	5,492,433	5,462,580	5,310,000	5,089,992	5,000,000
Average Annual Return, Percent	4.28%	0.80%	2.07%
C000011031 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class R
Account Value	$ 11,442	$ 11,442	$ 11,442	11,056	11,288	12,665	11,953	11,411	10,702	10,710	10,476	10,106	10,000
Average Annual Return, Percent	3.49%	0.05%	1.36%
C000011029 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Class Y
Account Value	$ 6,064,764	$ 6,064,764	$ 6,064,764	5,821,844	5,910,939	6,584,883	6,178,784	5,860,820	5,467,612	5,439,767	5,293,603	5,079,280	5,000,000
Average Annual Return, Percent	4.17%	0.69%	1.95%
Bloomberg U S Aggregate Bond Index [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Aggregate Bond Index
Account Value	$ 11,430	$ 11,430	$ 11,430	$ 11,137	$ 11,243	$ 12,533	$ 12,575	$ 11,564	$ 10,720	$ 10,763	$ 10,797	$ 10,186	$ 10,000
Average Annual Return, Percent	2.63%	(0.23%)	1.35%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jun. 30, 2024
C000011026 [Member] | Asset-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	8.10%	[1]
C000011026 [Member] | Collateralized Mortgage Obligations [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%	[1]
C000011026 [Member] | Commercial Mortgage-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	4%	[1]
C000011026 [Member] | Corporate Bond Securities [Member]
Holdings [Line Items]
Percent of Total Investments	33.80%	[1]
C000011026 [Member] | US Government Corporations and Agencies Securities [Member]
Holdings [Line Items]
Percent of Total Investments	43.80%	[1]
C000011026 [Member] | Foreign Government Bonds [Member]
Holdings [Line Items]
Percent of Total Investments	0.50%	[1]
C000011026 [Member] | Senior Secured Floating Rate Loan Interests [Member]
Holdings [Line Items]
Percent of Total Investments	0.20%	[1]
C000011026 [Member] | Insurance Linked Securities [Member]
Holdings [Line Items]
Percent of Total Investments	3.30%	[1]
C000011028 [Member] | Asset-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	8.10%	[2]
C000011028 [Member] | Collateralized Mortgage Obligations [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%	[2]
C000011028 [Member] | Commercial Mortgage-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	4%	[2]
C000011028 [Member] | Corporate Bond Securities [Member]
Holdings [Line Items]
Percent of Total Investments	33.80%	[2]
C000011028 [Member] | US Government Corporations and Agencies Securities [Member]
Holdings [Line Items]
Percent of Total Investments	43.80%	[2]
C000011028 [Member] | Foreign Government Bonds [Member]
Holdings [Line Items]
Percent of Total Investments	0.50%	[2]
C000011028 [Member] | Senior Secured Floating Rate Loan Interests [Member]
Holdings [Line Items]
Percent of Total Investments	0.20%	[2]
C000011028 [Member] | Insurance Linked Securities [Member]
Holdings [Line Items]
Percent of Total Investments	3.30%	[2]
C000123839 [Member] | Asset-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	8.10%	[3]
C000123839 [Member] | Collateralized Mortgage Obligations [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%	[3]
C000123839 [Member] | Commercial Mortgage-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	4%	[3]
C000123839 [Member] | Corporate Bond Securities [Member]
Holdings [Line Items]
Percent of Total Investments	33.80%	[3]
C000123839 [Member] | US Government Corporations and Agencies Securities [Member]
Holdings [Line Items]
Percent of Total Investments	43.80%	[3]
C000123839 [Member] | Foreign Government Bonds [Member]
Holdings [Line Items]
Percent of Total Investments	0.50%	[3]
C000123839 [Member] | Senior Secured Floating Rate Loan Interests [Member]
Holdings [Line Items]
Percent of Total Investments	0.20%	[3]
C000123839 [Member] | Insurance Linked Securities [Member]
Holdings [Line Items]
Percent of Total Investments	3.30%	[3]
C000011031 [Member] | Asset-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	8.10%	[4]
C000011031 [Member] | Collateralized Mortgage Obligations [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%	[4]
C000011031 [Member] | Commercial Mortgage-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	4%	[4]
C000011031 [Member] | Corporate Bond Securities [Member]
Holdings [Line Items]
Percent of Total Investments	33.80%	[4]
C000011031 [Member] | US Government Corporations and Agencies Securities [Member]
Holdings [Line Items]
Percent of Total Investments	43.80%	[4]
C000011031 [Member] | Foreign Government Bonds [Member]
Holdings [Line Items]
Percent of Total Investments	0.50%	[4]
C000011031 [Member] | Senior Secured Floating Rate Loan Interests [Member]
Holdings [Line Items]
Percent of Total Investments	0.20%	[4]
C000011031 [Member] | Insurance Linked Securities [Member]
Holdings [Line Items]
Percent of Total Investments	3.30%	[4]
C000011029 [Member] | Asset-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	8.10%	[5]
C000011029 [Member] | Collateralized Mortgage Obligations [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%	[5]
C000011029 [Member] | Commercial Mortgage-Backed Securities [Member]
Holdings [Line Items]
Percent of Total Investments	4%	[5]
C000011029 [Member] | Corporate Bond Securities [Member]
Holdings [Line Items]
Percent of Total Investments	33.80%	[5]
C000011029 [Member] | US Government Corporations and Agencies Securities [Member]
Holdings [Line Items]
Percent of Total Investments	43.80%	[5]
C000011029 [Member] | Foreign Government Bonds [Member]
Holdings [Line Items]
Percent of Total Investments	0.50%	[5]
C000011029 [Member] | Senior Secured Floating Rate Loan Interests [Member]
Holdings [Line Items]
Percent of Total Investments	0.20%	[5]
C000011029 [Member] | Insurance Linked Securities [Member]
Holdings [Line Items]
Percent of Total Investments	3.30%	[5]
[1]As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.[2]As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.[3]As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.[4]As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.[5]As a percentage of total investments excluding short-term investments and all derivative contracts except for options purchased.