| Form N-CSR Cover | 12 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Western Asset Funds, Inc. |
| Entity Central Index Key | 0000863520 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 12 Months Ended | |
| May 31, 2024 USD ($) $ / shares | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSR | |
| Amendment Flag | false | |
| Registrant Name | Western Asset Funds, Inc. | |
| Entity Central Index Key | 0000863520 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | May 31, 2024 | |
| Class A | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Western Asset Intermediate Bond Fund | |
| Class Name | Class A | |
| Trading Symbol | WATAX | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment * Class A $76 0.75% | [1] |
| Expenses Paid, Amount | $ 76 | |
| Expense Ratio, Percent | 0.75% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended May 31, 2024, Class A shares of Western Asset Intermediate Bond Fund returned 2.26%. The Fund compares its performance to the Bloomberg Intermediate U.S. Government Credit Index, which returned 2.67% for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Structured product exposure, mainly due to non-agency residential mortgage-backed securities (RMBS) and asset-backed securities (ABS), as structured product spreads generally tightened ↑ Overweight position in emerging markets (EM) as U.S. dollar-denomianted EM bond spreads tightened ↑ Overweight postion in investment-grade (IG) credit as spreads tightened Top detractors from performance: ↓ Duration overweight as yields rose during the reporting period ↓ Underweight postion in agency debentures as spreads slightly tightened Use of derivatives and the impact on performance: The Fund held interest rate futures, options and swaps to manage its duration and yield curve exposure, which provided a positive impact on performance. Credit default swaps on IG indices used to manage credit exposures also provided a positive impact on performance. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended May 31, 2024 1 Year 5 Year 10 Year Class A (without sales charge) 2.26 0.09 1.23 Class A (with sales charge) -1.53 -0.78 0.79 Bloomberg U.S. Aggregate Index 1.31 -0.17 1.26 Bloomberg Intermediate U.S. Government Credit Index 2.67 0.76 1.46 | |
| 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] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 689,115,507 | |
| Holdings Count | $ / shares | 991 | [2] |
| Advisory Fees Paid, Amount | $ 2,810,785 | |
| Investment Company Portfolio Turnover | 53% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $689,115,507 Total Number of Portfolio Holdings * 991 Total Management Fee Paid $2,810,785 Portfolio Turnover Rate 53% | [2] |
| Holdings [Text Block] | ||
| Material Fund Change [Text Block] | HOW HAS THE FUND CHANGED? Effective as of May 1, 2024, the Fund’s named portfolio management team consists of S. Kenneth Leech, Michael C. Buchanan, Mark S. Lindbloom, Frederick R. Marki, Nicholas Mastroianni and Julien A. Scholnick. This is a summary of certain changes to the Fund since June 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents or upon request at 877-6LM-FUND/656-3863 or prospectus franklintempleton.com . | |
| Updated Prospectus Phone Number | 877-6LM-FUND/656-3863 | |
| Updated Prospectus Email Address | prospectus@franklintempleton.com | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class C | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Western Asset Intermediate Bond Fund | |
| Class Name | Class C | |
| Trading Symbol | WATCX | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment * Class C $155 1.54% | [3] |
| Expenses Paid, Amount | $ 155 | |
| Expense Ratio, Percent | 1.54% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended May 31, 2024, Class C shares of Western Asset Intermediate Bond Fund returned 1.46%. The Fund compares its performance to the Bloomberg Intermediate U.S. Government Credit Index, which returned 2.67% for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Structured product exposure, mainly due to non-agency residential mortgage-backed securities (RMBS) and asset-backed securities (ABS), as structured product spreads generally tightened ↑ Overweight position in emerging markets (EM) as U.S. dollar-denomianted EM bond spreads tightened ↑ Overweight postion in investment-grade (IG) credit as spreads tightened Top detractors from performance: ↓ Duration overweight as yields rose during the reporting period ↓ Underweight postion in agency debentures as spreads slightly tightened Use of derivatives and the impact on performance: The Fund held interest rate futures, options and swaps to manage its duration and yield curve exposure, which provided a positive impact on performance. Credit default swaps on IG indices used to manage credit exposures also provided a positive impact on performance. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended May 31, 2024 1 Year 5 Year 10 Year Class C (without sales charge) 1.46 -0.66 0.50 Class C (with sales charge) 0.47 -0.66 0.50 Bloomberg U.S. Aggregate Index 1.31 -0.17 1.26 Bloomberg Intermediate U.S. Government Credit Index 2.67 0.76 1.46 | |
| 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] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 689,115,507 | |
| Holdings Count | $ / shares | 991 | [4] |
| Advisory Fees Paid, Amount | $ 2,810,785 | |
| Investment Company Portfolio Turnover | 53% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $689,115,507 Total Number of Portfolio Holdings * 991 Total Management Fee Paid $2,810,785 Portfolio Turnover Rate 53% | [4] |
| Holdings [Text Block] | ||
| Material Fund Change [Text Block] | HOW HAS THE FUND CHANGED? Effective as of May 1, 2024, the Fund’s named portfolio management team consists of S. Kenneth Leech, Michael C. Buchanan, Mark S. Lindbloom, Frederick R. Marki, Nicholas Mastroianni and Julien A. Scholnick. This is a summary of certain changes to the Fund since June 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents or upon request at 877-6LM-FUND/656-3863 or prospectus franklintempleton.com . | |
| Updated Prospectus Phone Number | 877-6LM-FUND/656-3863 | |
| Updated Prospectus Email Address | prospectus@franklintempleton.com | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class I | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Western Asset Intermediate Bond Fund | |
| Class Name | Class I | |
| Trading Symbol | WATIX | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment * Class I $57 0.56% | [5] |
| Expenses Paid, Amount | $ 57 | |
| Expense Ratio, Percent | 0.56% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended May 31, 2024, Class I shares of Western Asset Intermediate Bond Fund returned 2.56%. The Fund compares its performance to the Bloomberg Intermediate U.S. Government Credit Index, which returned 2.67% for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Structured product exposure, mainly due to non-agency residential mortgage-backed securities (RMBS) and asset-backed securities (ABS), as structured product spreads generally tightened ↑ Overweight position in emerging markets (EM) as U.S. dollar-denomianted EM bond spreads tightened ↑ Overweight postion in investment-grade (IG) credit as spreads tightened Top detractors from performance: ↓ Duration overweight as yields rose during the reporting period ↓ Underweight postion in agency debentures as spreads slightly tightened Use of derivatives and the impact on performance: The Fund held interest rate futures, options and swaps to manage its duration and yield curve exposure, which provided a positive impact on performance. Credit default swaps on IG indices used to manage credit exposures also provided a positive impact on performance. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended May 31, 2024 1 Year 5 Year 10 Year Class I (without sales charge) 2.56 0.35 1.56 Class I (with sales charge) 2.56 0.35 1.56 Bloomberg U.S. Aggregate Index 1.31 -0.17 1.26 Bloomberg Intermediate U.S. Government Credit Index 2.67 0.76 1.46 | |
| 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] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 689,115,507 | |
| Holdings Count | $ / shares | 991 | [6] |
| Advisory Fees Paid, Amount | $ 2,810,785 | |
| Investment Company Portfolio Turnover | 53% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $689,115,507 Total Number of Portfolio Holdings * 991 Total Management Fee Paid $2,810,785 Portfolio Turnover Rate 53% | [6] |
| Holdings [Text Block] | ||
| Material Fund Change [Text Block] | HOW HAS THE FUND CHANGED? Effective as of May 1, 2024, the Fund’s named portfolio management team consists of S. Kenneth Leech, Michael C. Buchanan, Mark S. Lindbloom, Frederick R. Marki, Nicholas Mastroianni and Julien A. Scholnick. This is a summary of certain changes to the Fund since June 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents or upon request at 877-6LM-FUND/656-3863 or prospectus franklintempleton.com . | |
| Updated Prospectus Phone Number | 877-6LM-FUND/656-3863 | |
| Updated Prospectus Email Address | prospectus@franklintempleton.com | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class IS | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Western Asset Intermediate Bond Fund | |
| Class Name | Class IS | |
| Trading Symbol | WABSX | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment * Class IS $45 0.44% | [7] |
| Expenses Paid, Amount | $ 45 | |
| Expense Ratio, Percent | 0.44% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended May 31, 2024, Class IS shares of Western Asset Intermediate Bond Fund returned 2.67%. The Fund compares its performance to the Bloomberg Intermediate U.S. Government Credit Index, which returned 2.67% for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Structured product exposure, mainly due to non-agency residential mortgage-backed securities (RMBS) and asset-backed securities (ABS), as structured product spreads generally tightened ↑ Overweight position in emerging markets (EM) as U.S. dollar-denomianted EM bond spreads tightened ↑ Overweight postion in investment-grade (IG) credit as spreads tightened Top detractors from performance: ↓ Duration overweight as yields rose during the reporting period ↓ Underweight postion in agency debentures as spreads slightly tightened Use of derivatives and the impact on performance: The Fund held interest rate futures, options and swaps to manage its duration and yield curve exposure, which provided a positive impact on performance. Credit default swaps on IG indices used to manage credit exposures also provided a positive impact on performance. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended May 31, 2024 1 Year 5 Year 10 Year Class IS (without sales charge) 2.67 0.46 1.66 Class IS (with sales charge) 2.67 0.46 1.66 Bloomberg U.S. Aggregate Index 1.31 -0.17 1.26 Bloomberg Intermediate U.S. Government Credit Index 2.67 0.76 1.46 | |
| 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] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 689,115,507 | |
| Holdings Count | $ / shares | 991 | [8] |
| Advisory Fees Paid, Amount | $ 2,810,785 | |
| Investment Company Portfolio Turnover | 53% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $689,115,507 Total Number of Portfolio Holdings * 991 Total Management Fee Paid $2,810,785 Portfolio Turnover Rate 53% | [8] |
| Holdings [Text Block] | ||
| Material Fund Change [Text Block] | HOW HAS THE FUND CHANGED? Effective as of May 1, 2024, the Fund’s named portfolio management team consists of S. Kenneth Leech, Michael C. Buchanan, Mark S. Lindbloom, Frederick R. Marki, Nicholas Mastroianni and Julien A. Scholnick. This is a summary of certain changes to the Fund since June 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents or upon request at 877-6LM-FUND/656-3863 or prospectus franklintempleton.com . | |
| Updated Prospectus Phone Number | 877-6LM-FUND/656-3863 | |
| Updated Prospectus Email Address | prospectus@franklintempleton.com | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class R | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Western Asset Intermediate Bond Fund | |
| Class Name | Class R | |
| Trading Symbol | WATRX | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment) Class Name Costs of $10,000 investment Costs paid as a percentage of a $10,000 investment * Class R $116 1.15% | [9] |
| Expenses Paid, Amount | $ 116 | |
| Expense Ratio, Percent | 1.15% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended May 31, 2024, Class R shares of Western Asset Intermediate Bond Fund returned 1.85%. The Fund compares its performance to the Bloomberg Intermediate U.S. Government Credit Index, which returned 2.67% for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Structured product exposure, mainly due to non-agency residential mortgage-backed securities (RMBS) and asset-backed securities (ABS), as structured product spreads generally tightened ↑ Overweight position in emerging markets (EM) as U.S. dollar-denomianted EM bond spreads tightened ↑ Overweight postion in investment-grade (IG) credit as spreads tightened Top detractors from performance: ↓ Duration overweight as yields rose during the reporting period ↓ Underweight postion in agency debentures as spreads slightly tightened Use of derivatives and the impact on performance: The Fund held interest rate futures, options and swaps to manage its duration and yield curve exposure, which provided a positive impact on performance. Credit default swaps on IG indices used to manage credit exposures also provided a positive impact on performance. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended May 31, 2024 1 Year 5 Year 10 Year Class R (without sales charge) 1.85 -0.27 0.94 Class R (with sales charge) 1.85 -0.27 0.94 Bloomberg U.S. Aggregate Index 1.31 -0.17 1.26 Bloomberg Intermediate U.S. Government Credit Index 2.67 0.76 1.46 | |
| 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] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 689,115,507 | |
| Holdings Count | $ / shares | 991 | [10] |
| Advisory Fees Paid, Amount | $ 2,810,785 | |
| Investment Company Portfolio Turnover | 53% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of May 31, 2024) Total Net Assets $689,115,507 Total Number of Portfolio Holdings * 991 Total Management Fee Paid $2,810,785 Portfolio Turnover Rate 53% | [10] |
| Holdings [Text Block] | ||
| Material Fund Change [Text Block] | HOW HAS THE FUND CHANGED? Effective as of May 1, 2024, the Fund’s named portfolio management team consists of S. Kenneth Leech, Michael C. Buchanan, Mark S. Lindbloom, Frederick R. Marki, Nicholas Mastroianni and Julien A. Scholnick. This is a summary of certain changes to the Fund since June 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents or upon request at 877-6LM-FUND/656-3863 or prospectus franklintempleton.com . | |
| Updated Prospectus Phone Number | 877-6LM-FUND/656-3863 | |
| Updated Prospectus Email Address | prospectus@franklintempleton.com | |
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| [1] * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased option contracts, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased option contracts, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased option contracts, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased option contracts, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased option contracts, if any. | ||
| Shareholder Report, Line Graph (Details) - USD ($) | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | May 31, 2020 | May 31, 2019 | May 31, 2018 | May 31, 2017 | May 31, 2016 | May 31, 2015 | May 31, 2014 |
| Class A | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | $ 10,820 | $ 10,581 | $ 10,738 | $ 11,754 | $ 11,466 | $ 10,770 | $ 10,226 | $ 10,254 | $ 9,994 | $ 9,781 | $ 9,575 |
| Class C | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 10,512 | 10,361 | 10,605 | 11,690 | 11,489 | 10,864 | 10,389 | 10,462 | 10,272 | 10,136 | 10,000 |
| Class I | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,167,410 | 1,138,277 | 1,153,565 | 1,259,390 | 1,226,704 | 1,147,411 | 1,085,868 | 1,081,920 | 1,050,907 | 1,025,320 | 1,000,000 |
| Class IS | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,178,710 | 1,147,958 | 1,162,117 | 1,267,023 | 1,231,773 | 1,151,984 | 1,089,282 | 1,084,579 | 1,052,924 | 1,025,767 | 1,000,000 |
| Class R | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 10,977 | 10,777 | 10,987 | 12,065 | 11,813 | 11,125 | 10,593 | 10,612 | 10,374 | 10,186 | 10,000 |
| Class A-Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 11,329 | 11,183 | 11,428 | 12,452 | 12,502 | 11,426 | 10,739 | 10,780 | 10,612 | 10,303 | 10,000 |
| Class A-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 11,556 | 11,256 | 11,316 | 12,059 | 11,972 | 11,127 | 10,524 | 10,597 | 10,451 | 10,221 | 10,000 |
| Class C-Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 11,329 | 11,183 | 11,428 | 12,452 | 12,502 | 11,426 | 10,739 | 10,780 | 10,612 | 10,303 | 10,000 |
| Class C-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 11,556 | 11,256 | 11,316 | 12,059 | 11,972 | 11,127 | 10,524 | 10,597 | 10,451 | 10,221 | 10,000 |
| Class I-Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,132,905 | 1,118,305 | 1,142,793 | 1,245,172 | 1,250,234 | 1,142,647 | 1,073,913 | 1,077,951 | 1,061,199 | 1,030,342 | 1,000,000 |
| Class I-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,155,629 | 1,125,628 | 1,131,624 | 1,205,927 | 1,197,212 | 1,112,651 | 1,052,362 | 1,059,705 | 1,045,082 | 1,022,142 | 1,000,000 |
| Class IS-Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,132,905 | 1,118,305 | 1,142,793 | 1,245,172 | 1,250,234 | 1,142,647 | 1,073,913 | 1,077,951 | 1,061,199 | 1,030,342 | 1,000,000 |
| Class IS-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 1,155,629 | 1,125,628 | 1,131,624 | 1,205,927 | 1,197,212 | 1,112,651 | 1,052,362 | 1,059,705 | 1,045,082 | 1,022,142 | 1,000,000 |
| Class R-Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | 11,329 | 11,183 | 11,428 | 12,452 | 12,502 | 11,426 | 10,739 | 10,780 | 10,612 | 10,303 | 10,000 |
| Class R-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Account Value | $ 11,556 | $ 11,256 | $ 11,316 | $ 12,059 | $ 11,972 | $ 11,127 | $ 10,524 | $ 10,597 | $ 10,451 | $ 10,221 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| May 31, 2024 | May 31, 2024 | May 31, 2024 | |
| Class A | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | (1.53%) | (0.78%) | 0.79% |
| Class C | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 0.47% | (0.66%) | 0.50% |
| Class I | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.56% | 0.35% | 1.56% |
| Class IS | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.46% | 1.66% |
| Class R | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.85% | (0.27%) | 0.94% |
| Without Sales Load [Member] | Class A | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.26% | 0.09% | 1.23% |
| Without Sales Load [Member] | Class C | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.46% | (0.66%) | 0.50% |
| Without Sales Load [Member] | Class I | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.56% | 0.35% | 1.56% |
| Without Sales Load [Member] | Class IS | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.46% | 1.66% |
| Without Sales Load [Member] | Class R | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.85% | (0.27%) | 0.94% |
| Class A-Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% |
| Class A-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.76% | 1.46% |
| Class C-Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% |
| Class C-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.76% | 1.46% |
| Class I-Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% |
| Class I-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.76% | 1.46% |
| Class IS-Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% |
| Class IS-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.76% | 1.46% |
| Class R-Bloomberg U.S. Aggregate Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 1.31% | (0.17%) | 1.26% |
| Class R-Bloomberg Intermediate U.S. Government Credit Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 2.67% | 0.76% | 1.46% |
| Shareholder Report, Holdings (Details) | May 31, 2024 |
| Class A | U.S.Government & Agency Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.20% |
| Class A | Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| Class A | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.60% |
| Class A | Collateralized Mortgage Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| Class A | Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| Class A | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| Class A | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| Class A | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| Class A | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class A | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class A | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class A | Sovereign Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class A | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| Class A | Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class A | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class A | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| Class A | U.S. Treasury Inflation Protected Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| Class A | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class A | Purchased Options [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class C | U.S.Government & Agency Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.20% |
| Class C | Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| Class C | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.60% |
| Class C | Collateralized Mortgage Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| Class C | Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| Class C | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| Class C | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| Class C | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| Class C | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class C | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class C | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class C | Sovereign Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class C | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| Class C | Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class C | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class C | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| Class C | U.S. Treasury Inflation Protected Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| Class C | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class C | Purchased Options [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class I | U.S. Government & Agency Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.20% |
| Class I | Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| Class I | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.60% |
| Class I | Collateralized Mortgage Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| Class I | Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| Class I | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| Class I | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| Class I | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| Class I | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class I | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class I | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class I | Sovereign Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class I | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| Class I | Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class I | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class I | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| Class I | U.S. Treasury Inflation Protected Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| Class I | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class I | Purchased Options [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class IS | U.S.Government & Agency Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.20% |
| Class IS | Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| Class IS | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.60% |
| Class IS | Collateralized Mortgage Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| Class IS | Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| Class IS | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| Class IS | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| Class IS | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| Class IS | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class IS | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class IS | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class IS | Sovereign Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class IS | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| Class IS | Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class IS | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class IS | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| Class IS | U.S. Treasury Inflation Protected Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| Class IS | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class IS | Purchased Options [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class R | U.S.Government & Agency Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.20% |
| Class R | Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.70% |
| Class R | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.60% |
| Class R | Collateralized Mortgage Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.70% |
| Class R | Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| Class R | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.20% |
| Class R | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| Class R | Communication Services [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| Class R | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class R | Consumer Staples [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class R | Consumer Discretionary [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class R | Sovereign Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| Class R | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| Class R | Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class R | Information Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| Class R | Utilities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.70% |
| Class R | U.S. Treasury Inflation Protected Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.20% |
| Class R | Real Estate [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| Class R | Purchased Options [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
